1
|
Ferrari AJ, Santomauro DF, Aali A, Abate YH, Abbafati C, Abbastabar H, Abd ElHafeez S, Abdelmasseh M, Abd-Elsalam S, Abdollahi A, Abdullahi A, Abegaz KH, Abeldaño Zuñiga RA, Aboagye RG, Abolhassani H, Abreu LG, Abualruz H, Abu-Gharbieh E, Abu-Rmeileh NME, Ackerman IN, Addo IY, Addolorato G, Adebiyi AO, Adepoju AV, Adewuyi HO, Afyouni S, Afzal S, Afzal S, Agodi A, Ahmad A, Ahmad D, Ahmad F, Ahmad S, Ahmed A, Ahmed LA, Ahmed MB, Ajami M, Akinosoglou K, Akkaif MA, Al Hasan SM, Alalalmeh SO, Al-Aly Z, Albashtawy M, Aldridge RW, Alemu MD, Alemu YM, Alene KA, Al-Gheethi AAS, Alharrasi M, Alhassan RK, Ali MU, Ali R, Ali SSS, Alif SM, Aljunid SM, Al-Marwani S, Almazan JU, Alomari MA, Al-Omari B, Altaany Z, Alvis-Guzman N, Alvis-Zakzuk NJ, Alwafi H, Al-Wardat MS, Al-Worafi YM, Aly S, Alzoubi KH, Amare AT, Amegbor PM, Ameyaw EK, Amin TT, Amindarolzarbi A, Amiri S, Amugsi DA, Ancuceanu R, Anderlini D, Anderson DB, Andrade PP, Andrei CL, Ansari H, Antony CM, Anwar S, Anwar SL, Anwer R, Anyanwu PE, Arab JP, Arabloo J, Arafat M, Araki DT, Aravkin AY, Arkew M, Armocida B, Arndt MB, Arooj M, Artamonov AA, Aruleba RT, Arumugam A, Ashbaugh C, Ashemo MY, Ashraf M, Asika MO, Askari E, Astell-Burt T, Athari SS, Atorkey P, Atout MMW, Atreya A, Aujayeb A, Ausloos M, Avan A, Awotidebe AW, Awuviry-Newton K, Ayala Quintanilla BP, Ayuso-Mateos JL, Azadnajafabad S, Azevedo RMS, Babu AS, Badar M, Badiye AD, Baghdadi S, Bagheri N, Bah S, Bai R, Baker JL, Bakkannavar SM, Bako AT, Balakrishnan S, Bam K, Banik PC, Barchitta M, Bardhan M, Bardideh E, Barker-Collo SL, Barqawi HJ, Barrow A, Barteit S, Barua L, Bashiri Aliabadi S, Basiru A, Basu S, Basu S, Bathini PP, Batra K, Baune BT, Bayileyegn NS, Behnam B, Behnoush AH, Beiranvand M, Bejarano Ramirez DF, Bell ML, Bello OO, Beloukas A, Bensenor IM, Berezvai Z, Bernabe E, Bernstein RS, Bettencourt PJG, Bhagavathula AS, Bhala N, Bhandari D, Bhargava A, Bhaskar S, Bhat V, Bhatti GK, Bhatti JS, Bhatti MS, Bhatti R, Bhutta ZA, Bikbov B, Bishai JD, Bisignano C, Bitra VR, Bjørge T, Bodolica V, Bodunrin AO, Bogale EK, Bonakdar Hashemi M, Bonny A, Bora Basara B, Borhany H, Boxe C, Brady OJ, Bragazzi NL, Braithwaite D, Brant LC, Brauer M, Breitner S, Brenner H, Brown J, Brugha T, Bulamu NB, Buonsenso D, Burkart K, Burns RA, Busse R, Bustanji Y, Butt ZA, Byun J, Caetano dos Santos FL, Calina D, Cámera LA, Campos-Nonato IR, Cao C, Capodici A, Carr S, Carreras G, Carugno A, Carvalho M, Castaldelli-Maia JM, Castañeda-Orjuela CA, Castelpietra G, Catapano AL, Cattaruzza MS, Caye A, Cegolon L, Cembranel F, Cenderadewi M, Cerin E, Chakraborty PA, Chan JSK, Chan RNC, Chandika RM, Chandrasekar EK, Charalampous P, Chattu VK, Chatzimavridou-Grigoriadou V, Chen AW, Chen AT, Chen CS, Chen H, Chen NM, Cheng ETW, Chimed-Ochir O, Chimoriya R, Ching PR, Cho WCS, Choi S, Chong B, Chong YY, Choudhari SG, Chowdhury R, Christensen SWM, Chu DT, Chukwu IS, Chung E, Chung E, Chutiyami M, Claassens MM, Cogen RM, Columbus A, Conde J, Cortesi PA, Cousin E, Criqui MH, Cruz-Martins N, Dadras O, Dai S, Dai X, Dai Z, Dalaba MA, Damiani G, Das JK, Das S, Dashti M, Dávila-Cervantes CA, Davletov K, De Leo D, Debele AT, Debopadhaya S, DeCleene NK, Deeba F, Degenhardt L, Del Bo' C, Delgado-Enciso I, Demetriades AK, Denova-Gutiérrez E, Dervenis N, Desai HD, Desai R, Deuba K, Dhama K, Dharmaratne SD, Dhingra S, Dias da Silva D, Diaz D, Diaz LA, Diaz MJ, Dima A, Ding DD, Dirac MA, Do THP, do Prado CB, Dohare S, Dominguez RMV, Dong W, Dongarwar D, D'Oria M, Dorsey ER, Doshmangir L, Dowou RK, Driscoll TR, Dsouza HL, Dsouza V, Dube J, Dumith SC, Duncan BB, Duraes AR, Duraisamy S, Durojaiye OC, Dzianach PA, Dziedzic AM, Eboreime E, Ebrahimi A, Edinur HA, Edvardsson D, Eikemo TA, Eini E, Ekholuenetale M, Ekundayo TC, El Sayed I, El Tantawi M, Elbarazi I, Elemam NM, ElGohary GMT, Elhadi M, Elmeligy OAA, ELNahas G, Elshaer M, Elsohaby I, Engelbert Bain L, Erkhembayar R, Eshrati B, Estep K, Fabin N, Fagbamigbe AF, Falzone L, Fareed M, Farinha CSES, Faris MEM, Faro A, Farrokhi P, Fatehizadeh A, Fauk NK, Feigin VL, Feng X, Fereshtehnejad SM, Feroze AH, Ferreira N, Ferreira PH, Fischer F, Flavel J, Flood D, Flor LS, Foigt NA, Folayan MO, Force LM, Fortuna D, Foschi M, Franklin RC, Freitas A, Fukumoto T, Furtado JM, Gaal PA, Gadanya MA, Gaidhane AM, Gaihre S, Galali Y, Ganbat M, Gandhi AP, Ganesan B, Ganie MA, Ganiyani MA, Gardner WM, Gebi TG, Gebregergis MW, Gebrehiwot M, Gebremariam TBB, Gebremeskel TG, Gela YY, Georgescu SR, Getachew Obsa A, Gething PW, Getie M, Ghadiri K, Ghadirian F, Ghailan KY, Ghajar A, Ghasemi M, Ghasempour Dabaghi G, Ghasemzadeh A, Ghazy RM, Gholamrezanezhad A, Ghorbani M, Ghotbi E, Gibson RM, Gill TK, Ginindza TG, Girmay A, Glasbey JC, Göbölös L, Godinho MA, Goharinezhad S, Goldust M, Golechha M, Goleij P, Gona PN, Gorini G, Goulart AC, Grada A, Grivna M, Guan SY, Guarducci G, Gubari MIM, Gudeta MD, Guha A, Guicciardi S, Gulati S, Gulisashvili D, Gunawardane DA, Guo C, Gupta AK, Gupta B, Gupta I, Gupta M, Gupta R, Gupta VB, Gupta VK, Gupta VK, Gutiérrez RA, Habibzadeh F, Habibzadeh P, Haddadi R, Hadi NR, Haep N, Hafezi-Nejad N, Hafiz A, Hagins H, Halboub ES, Halimi A, Haller S, Halwani R, Hamilton EB, Hankey GJ, Hannan MA, Haque MN, Harapan H, Haro JM, Hartvigsen J, Hasaballah AI, Hasan I, Hasanian M, Hasnain MS, Hassan A, Haubold J, Havmoeller RJ, Hay SI, Hayat K, Hebert JJ, Hegazi OE, Heidari G, Helfer B, Hemmati M, Hendrie D, Henson CA, Hezam K, Hiraike Y, Hoan NQ, Holla R, Hon J, Hossain MM, Hosseinzadeh H, Hosseinzadeh M, Hostiuc M, Hostiuc S, Hsu JM, Huang J, Hugo FN, Hushmandi K, Hussain J, Hussein NR, Huynh CK, Huynh HH, Hwang BF, Iannucci VC, Ihler AL, Ikiroma AI, Ikuta KS, Ilesanmi OS, Ilic IM, Ilic MD, Imam MT, Immurana M, Irham LM, Islam MR, Islam SMS, Islami F, Ismail F, Ismail NE, Isola G, Iwagami M, Iwu CCD, Iyer M, Jaafari J, Jacobsen KH, Jadidi-Niaragh F, Jafarinia M, Jaggi K, Jahankhani K, Jahanmehr N, Jahrami H, Jain A, Jain N, Jairoun AA, Jaiswal A, Jakovljevic M, Jatau AI, Javadov S, Javaheri T, Jayapal SK, Jayaram S, Jee SH, Jeganathan J, Jeyakumar A, Jha AK, Jiang H, Jin Y, Jonas JB, Joo T, Joseph A, Joseph N, Joshua CE, Jozwiak JJ, Jürisson M, K V, Kaambwa B, Kabir A, Kabir Z, Kadashetti V, Kalani R, Kalankesh LR, Kaliyadan F, Kalra S, Kamenov K, Kamyari N, Kanagasabai T, Kandel H, Kanmanthareddy AR, Kanmodi KK, Kantar RS, Karaye IM, Karim A, Karimi SE, Karimi Y, Kasraei H, Kassel MB, Kauppila JH, Kawakami N, Kayode GA, Kazemi F, Kazemian S, Keikavoosi-Arani L, Keller C, Kempen JH, Kerr JA, Keshtkar K, Kesse-Guyot E, Keykhaei M, Khajuria H, Khalaji A, Khalid A, Khalid N, Khalilian A, Khamesipour F, Khan A, Khan I, Khan M, Khan MAB, Khanmohammadi S, Khatab K, Khatami F, Khatatbeh MM, Khater AM, Khayat Kashani HR, Khidri FF, Khodadoust E, Khormali M, Khorrami Z, Kifle ZD, Kim MS, Kimokoti RW, Kisa A, Kisa S, Knudsen AKS, Kocarnik JM, Kochhar S, Koh HY, Kolahi AA, Kompani F, Koren G, Korzh O, Kosen S, Koulmane Laxminarayana SL, Krishan K, Krishna V, Krishnamoorthy V, Kuate Defo B, Kuddus MA, Kuddus M, Kuitunen I, Kulkarni V, Kumar M, Kumar N, Kumar R, Kurmi OP, Kusuma D, Kyu HH, La Vecchia C, Lacey B, Ladan MA, Laflamme L, Lafranconi A, Lahariya C, Lai DTC, Lal DK, Lalloo R, Lallukka T, Lám J, Lan Q, Lan T, Landires I, Lanfranchi F, Langguth B, Laplante-Lévesque A, Larijani B, Larsson AO, Lasrado S, Lauriola P, Le HH, Le LKD, Le NHH, Le TDT, Leasher JL, Ledda C, Lee M, Lee PH, Lee SW, Lee SW, Lee WC, Lee YH, LeGrand KE, Lenzi J, Leong E, Leung J, Li MC, Li W, Li X, Li Y, Li Y, Lim LL, Lim SS, Lindstrom M, Linn S, Liu G, Liu R, Liu S, Liu W, Liu X, Liu X, Llanaj E, Lo CH, López-Bueno R, Loreche AM, Lorenzovici L, Lozano R, Lubinda J, Lucchetti G, Lunevicius R, Lusk JB, lv H, Ma ZF, Machairas N, Madureira-Carvalho ÁM, Magaña Gómez JA, Maghazachi AA, Maharjan P, Mahasha PW, Maheri M, Mahjoub S, Mahmoud MA, Mahmoudi E, Majeed A, Makris KC, Malakan Rad E, Malhotra K, Malik AA, Malik I, Malta DC, Manla Y, Mansour A, Mansouri P, Mansournia MA, Mantilla Herrera AM, Mantovani LG, Manu E, Marateb HR, Mardi P, Martinez G, Martinez-Piedra R, Martini D, Martins-Melo FR, Martorell M, Marx W, Maryam S, Marzo RR, Mathangasinghe Y, Mathieson S, Mathioudakis AG, Mattumpuram J, Maugeri A, Mayeli M, Mazidi M, Mazzotti A, McGrath JJ, McKee M, McKowen ALW, McPhail MA, Mehrabani-Zeinabad K, Mehrabi Nasab E, Mekene Meto T, Mendoza W, Menezes RG, Mensah GA, Mentis AFA, Meo SA, Meresa HA, Meretoja A, Meretoja TJ, Mersha AM, Mestrovic T, Mettananda KCD, Mettananda S, Michalek IM, Miller PA, Miller TR, Mills EJ, Minh LHN, Mirijello A, Mirrakhimov EM, Mirutse MK, Mirza-Aghazadeh-Attari M, Mirzaei M, Mirzaei R, Misganaw A, Mishra AK, Mitchell PB, Mittal C, Moazen B, Moberg ME, Mohamed J, Mohamed MFH, Mohamed NS, Mohammadi E, Mohammadi S, Mohammed H, Mohammed S, Mohammed S, Mohr RM, Mokdad AH, Molinaro S, Momtazmanesh S, Monasta L, Mondello S, Moodi Ghalibaf A, Moradi M, Moradi Y, Moradi-Lakeh M, Moraga P, Morawska L, Moreira RS, Morovatdar N, Morrison SD, Morze J, Mosapour A, Mosser JF, Mossialos E, Motappa R, Mougin V, Mouodi S, Mrejen M, Msherghi A, Mubarik S, Mueller UO, Mulita F, Munjal K, Murillo-Zamora E, Murlimanju BV, Mustafa G, Muthu S, Muzaffar M, Myung W, Nagarajan AJ, Naghavi P, Naik GR, Nainu F, Nair S, Najmuldeen HHR, Nangia V, Naqvi AA, Narayana AI, Nargus S, Nascimento GG, Nashwan AJ, Nasrollahizadeh A, Nasrollahizadeh A, Natto ZS, Nayak BP, Nayak VC, Nduaguba SO, Negash H, Negoi I, Negoi RI, Nejadghaderi SA, Nesbit OD, Netsere HB, Ng M, Nguefack-Tsague G, Ngunjiri JW, Nguyen DH, Nguyen HQ, Niazi RK, Nikolouzakis TK, Nikoobar A, Nikoomanesh F, Nikpoor AR, Nnaji CA, Nnyanzi LA, Noman EA, Nomura S, Norrving B, Nri-Ezedi CA, Ntaios G, Ntsekhe M, Nurrika D, Nzoputam CI, Nzoputam OJ, Oancea B, Odetokun IA, O'Donnell MJ, Oguntade AS, Oguta JO, Okati-Aliabad H, Okeke SR, Okekunle AP, Okonji OC, Olagunju AT, Olasupo OO, Olatubi MI, Oliveira GMM, Olufadewa II, Olusanya BO, Olusanya JO, Omar HA, Omer GL, Omonisi AEE, Onie S, Onwujekwe OE, Ordak M, Orish VN, Ortega-Altamirano DV, Ortiz A, Ortiz-Brizuela E, Osman WMS, Ostroff SM, Osuagwu UL, Otoiu A, Otstavnov N, Otstavnov SS, Ouyahia A, Ouyang G, Owolabi MO, P A MP, Padron-Monedero A, Padubidri JR, Palicz T, Palladino C, Pan F, Pandi-Perumal SR, Pangaribuan HU, Panos GD, Panos LD, Pantea Stoian AM, Pardhan S, Parikh RR, Pashaei A, Pasovic M, Passera R, Patel J, Patel SK, Patil S, Patoulias D, Patthipati VS, Pawar S, Pazoki Toroudi H, Pease SA, Peden AE, Pedersini P, Peng M, Pensato U, Pepito VCF, Peprah EK, Peprah P, Perdigão J, Pereira MO, Perianayagam A, Perico N, Pesudovs K, Petermann-Rocha FE, Petri WA, Pham HT, Philip AK, Phillips MR, Pigeolet M, Pigott DM, Pillay JD, Piracha ZZ, Pirouzpanah S, Plass D, Plotnikov E, Poddighe D, Polinder S, Postma MJ, Pourtaheri N, Prada SI, Pradhan PMS, Prakash V, Prasad M, Prates EJS, Priscilla T, Pritchett N, Puri P, Puvvula J, Qasim NH, Qattea I, Qazi AS, Qian G, Rabiee Rad M, Radhakrishnan RA, Radhakrishnan V, Raeisi Shahraki H, Rafferty Q, Raggi A, Raghav PR, Rahim MJ, Rahman MM, Rahman MHU, Rahman M, Rahman MA, Rahmani S, Rahmanian M, Rahmawaty S, Rajaa S, Ramadan MM, Ramasamy SK, Ramasubramani P, Ramazanu S, Rana K, Ranabhat CL, Rancic N, Rane A, Rao CR, Rao K, Rao M, Rao SJ, Rashidi MM, Rathnaiah Babu G, Rauniyar SK, Rawaf DL, Rawaf S, Razo C, Reddy MMRK, Redwan EMM, Reifels L, Reiner Jr RC, Remuzzi G, Renzaho AMN, Reshmi B, Reyes LF, Rezaei N, Rezaei N, Rezaei N, Rezaei Hachesu P, Rezaeian M, Rickard J, Rodrigues CF, Rodriguez JAB, Roever L, Ronfani L, Roshandel G, Rotimi K, Rout HS, Roy B, Roy N, Roy P, Rubagotti E, S N C, Saad AMA, Saber-Ayad MM, Sabour S, Sacco S, Sachdev PS, Saddik B, Saddler A, Sadee BA, Sadeghi E, Sadeghi M, Saeb MR, Saeed U, Safi SZ, Sagar R, Sagoe D, Saif Z, Sajid MR, Sakshaug JW, Salam N, Salami AA, Salaroli LB, Saleh MA, Salem MR, Salem MZY, Sallam M, Samadzadeh S, Samargandy S, Samodra YL, Samy AM, Sanabria J, Sanna F, Santos IS, Santric-Milicevic MM, Sarasmita MA, Sarikhani Y, Sarmiento-Suárez R, Sarode GS, Sarode SC, Sarveazad A, Sathian B, Sathyanarayan A, Satpathy M, Sawhney M, Scarmeas N, Schaarschmidt BM, Schmidt MI, Schneider IJC, Schumacher AE, Schwebel DC, Schwendicke F, Sedighi M, Senapati S, Senthilkumaran S, Sepanlou SG, Sethi Y, Setoguchi S, Seylani A, Shadid J, Shafie M, Shah H, Shah NS, Shah PA, Shahbandi A, Shahid S, Shahid W, Shahwan MJ, Shaikh MA, Shakeri A, Shalash AS, Sham S, Shamim MA, Shamshirgaran MA, Shamsi MA, Shanawaz M, Shankar A, Shannawaz M, Sharath M, Sharifan A, Sharifi-Rad J, Sharma M, Sharma R, Sharma S, Sharma U, Sharma V, Shastry RP, Shavandi A, Shayan AM, Shayan M, Shehabeldine AME, Shetty PH, Shibuya K, Shifa JE, Shiferaw D, Shiferaw WS, Shigematsu M, Shiri R, Shitaye NA, Shittu A, Shivakumar KM, Shivarov V, Shokati Eshkiki Z, Shool S, Shrestha S, Shuval K, Sibhat MM, Siddig EE, Sigfusdottir ID, Silva DAS, Silva JP, Silva LMLR, Silva S, Simpson CR, Singal A, Singh A, Singh BB, Singh H, Singh JA, Singh M, Singh P, Skou ST, Sleet DA, Slepak ELN, Solanki R, Soliman SSM, Song S, Song Y, Sorensen RJD, Soriano JB, Soyiri IN, Spartalis M, Sreeramareddy CT, Stark BA, Starodubova AV, Stein C, Stein DJ, Steiner C, Steiner TJ, Steinmetz JD, Steiropoulos P, Stockfelt L, Stokes MA, Subedi NS, Subramaniyan V, Suemoto CK, Suleman M, Suliankatchi Abdulkader R, Sultana A, Sundström J, Swain CK, Szarpak L, Tabaee Damavandi P, Tabarés-Seisdedos R, Tabatabaei Malazy O, Tabatabaeizadeh SA, Tabatabai S, Tabche C, Tabish M, Tadakamadla SK, Taheri Abkenar Y, Taheri Soodejani M, Taherkhani A, Taiba J, Talaat IM, Talukder A, Tampa M, Tamuzi JL, Tan KK, Tandukar S, Tang H, Tavakoli Oliaee R, Tavangar SM, Teimoori M, Temsah MH, Teramoto M, Thangaraju P, Thankappan KR, Thapar R, Thayakaran R, Thirunavukkarasu S, Thomas N, Thomas NK, Thum CCC, Tichopad A, Ticoalu JHV, Tillawi T, Tiruye TY, Tobe-Gai R, Tonelli M, Topor-Madry R, Torre AE, Touvier M, Tovani-Palone MR, Tran JT, Tran MTN, Tran NM, Tran NH, Trico D, Tromans SJ, Truyen TTTT, Tsatsakis A, Tsegay GM, Tsermpini EE, Tumurkhuu M, Tyrovolas S, Udoh A, Umair M, Umakanthan S, Umar TP, Undurraga EA, Unim B, Unnikrishnan B, Unsworth CA, Upadhyay E, Urso D, Usman JS, Vahabi SM, Vaithinathan AG, Van den Eynde J, Varga O, Varma RP, Vart P, Vasankari TJ, Vasic M, Vaziri S, Vellingiri B, Venketasubramanian N, Veroux M, Verras GI, Vervoort D, Villafañe JH, Violante FS, Vlassov V, Vollset SE, Volovat SR, Vongpradith A, Waheed Y, Wang C, Wang F, Wang N, Wang S, Wang Y, Wang YP, Ward P, Wassie EG, Weaver MR, Weerakoon KG, Weintraub RG, Weiss DJ, Weldemariam AH, Wells KM, Wen YF, Whisnant JL, Whiteford HA, Wiangkham T, Wickramasinghe DP, Wickramasinghe ND, Wilandika A, Wilkerson C, Willeit P, Wimo A, Woldegebreal DH, Wolf AW, Wong YJ, Woolf AD, Wu C, Wu F, Wu X, Wu Z, Wulf Hanson S, Xia Y, Xiao H, Xu X, Xu YY, Yadav L, Yadollahpour A, Yaghoubi S, Yamagishi K, Yang L, Yano Y, Yao Y, Yaribeygi H, Yazdanpanah MH, Ye P, Yehualashet SS, Yesuf SA, Yezli S, Yiğit A, Yiğit V, Yigzaw ZA, Yismaw Y, Yon DK, Yonemoto N, Younis MZ, Yu C, Yu Y, Yusuf H, Zahid MH, Zakham F, Zaki L, Zaki N, Zaman BA, Zamora N, Zand R, Zandieh GGZ, Zar HJ, Zarrintan A, Zastrozhin MS, Zhang H, Zhang N, Zhang Y, Zhao H, Zhong C, Zhong P, Zhou J, Zhu Z, Ziafati M, Zielińska M, Zimsen SRM, Zoladl M, Zumla A, Zyoud SH, Vos T, Murray CJL. Global incidence, prevalence, years lived with disability (YLDs), disability-adjusted life-years (DALYs), and healthy life expectancy (HALE) for 371 diseases and injuries in 204 countries and territories and 811 subnational locations, 1990-2021: a systematic analysis for the Global Burden of Disease Study 2021. Lancet 2024:S0140-6736(24)00757-8. [PMID: 38642570 DOI: 10.1016/s0140-6736(24)00757-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 03/07/2024] [Accepted: 04/12/2024] [Indexed: 04/22/2024]
Abstract
BACKGROUND Detailed, comprehensive, and timely reporting on population health by underlying causes of disability and premature death is crucial to understanding and responding to complex patterns of disease and injury burden over time and across age groups, sexes, and locations. The availability of disease burden estimates can promote evidence-based interventions that enable public health researchers, policy makers, and other professionals to implement strategies that can mitigate diseases. It can also facilitate more rigorous monitoring of progress towards national and international health targets, such as the Sustainable Development Goals. For three decades, the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) has filled that need. A global network of collaborators contributed to the production of GBD 2021 by providing, reviewing, and analysing all available data. GBD estimates are updated routinely with additional data and refined analytical methods. GBD 2021 presents, for the first time, estimates of health loss due to the COVID-19 pandemic. METHODS The GBD 2021 disease and injury burden analysis estimated years lived with disability (YLDs), years of life lost (YLLs), disability-adjusted life-years (DALYs), and healthy life expectancy (HALE) for 371 diseases and injuries using 100 983 data sources. Data were extracted from vital registration systems, verbal autopsies, censuses, household surveys, disease-specific registries, health service contact data, and other sources. YLDs were calculated by multiplying cause-age-sex-location-year-specific prevalence of sequelae by their respective disability weights, for each disease and injury. YLLs were calculated by multiplying cause-age-sex-location-year-specific deaths by the standard life expectancy at the age that death occurred. DALYs were calculated by summing YLDs and YLLs. HALE estimates were produced using YLDs per capita and age-specific mortality rates by location, age, sex, year, and cause. 95% uncertainty intervals (UIs) were generated for all final estimates as the 2·5th and 97·5th percentiles values of 500 draws. Uncertainty was propagated at each step of the estimation process. Counts and age-standardised rates were calculated globally, for seven super-regions, 21 regions, 204 countries and territories (including 21 countries with subnational locations), and 811 subnational locations, from 1990 to 2021. Here we report data for 2010 to 2021 to highlight trends in disease burden over the past decade and through the first 2 years of the COVID-19 pandemic. FINDINGS Global DALYs increased from 2·63 billion (95% UI 2·44-2·85) in 2010 to 2·88 billion (2·64-3·15) in 2021 for all causes combined. Much of this increase in the number of DALYs was due to population growth and ageing, as indicated by a decrease in global age-standardised all-cause DALY rates of 14·2% (95% UI 10·7-17·3) between 2010 and 2019. Notably, however, this decrease in rates reversed during the first 2 years of the COVID-19 pandemic, with increases in global age-standardised all-cause DALY rates since 2019 of 4·1% (1·8-6·3) in 2020 and 7·2% (4·7-10·0) in 2021. In 2021, COVID-19 was the leading cause of DALYs globally (212·0 million [198·0-234·5] DALYs), followed by ischaemic heart disease (188·3 million [176·7-198·3]), neonatal disorders (186·3 million [162·3-214·9]), and stroke (160·4 million [148·0-171·7]). However, notable health gains were seen among other leading communicable, maternal, neonatal, and nutritional (CMNN) diseases. Globally between 2010 and 2021, the age-standardised DALY rates for HIV/AIDS decreased by 47·8% (43·3-51·7) and for diarrhoeal diseases decreased by 47·0% (39·9-52·9). Non-communicable diseases contributed 1·73 billion (95% UI 1·54-1·94) DALYs in 2021, with a decrease in age-standardised DALY rates since 2010 of 6·4% (95% UI 3·5-9·5). Between 2010 and 2021, among the 25 leading Level 3 causes, age-standardised DALY rates increased most substantially for anxiety disorders (16·7% [14·0-19·8]), depressive disorders (16·4% [11·9-21·3]), and diabetes (14·0% [10·0-17·4]). Age-standardised DALY rates due to injuries decreased globally by 24·0% (20·7-27·2) between 2010 and 2021, although improvements were not uniform across locations, ages, and sexes. Globally, HALE at birth improved slightly, from 61·3 years (58·6-63·6) in 2010 to 62·2 years (59·4-64·7) in 2021. However, despite this overall increase, HALE decreased by 2·2% (1·6-2·9) between 2019 and 2021. INTERPRETATION Putting the COVID-19 pandemic in the context of a mutually exclusive and collectively exhaustive list of causes of health loss is crucial to understanding its impact and ensuring that health funding and policy address needs at both local and global levels through cost-effective and evidence-based interventions. A global epidemiological transition remains underway. Our findings suggest that prioritising non-communicable disease prevention and treatment policies, as well as strengthening health systems, continues to be crucially important. The progress on reducing the burden of CMNN diseases must not stall; although global trends are improving, the burden of CMNN diseases remains unacceptably high. Evidence-based interventions will help save the lives of young children and mothers and improve the overall health and economic conditions of societies across the world. Governments and multilateral organisations should prioritise pandemic preparedness planning alongside efforts to reduce the burden of diseases and injuries that will strain resources in the coming decades. FUNDING Bill & Melinda Gates Foundation.
Collapse
|
2
|
Naghavi M, Ong KL, Aali A, Ababneh HS, Abate YH, Abbafati C, Abbasgholizadeh R, Abbasian M, Abbasi-Kangevari M, Abbastabar H, Abd ElHafeez S, Abdelmasseh M, Abd-Elsalam S, Abdelwahab A, Abdollahi M, Abdollahifar MA, Abdoun M, Abdulah DM, Abdullahi A, Abebe M, Abebe SS, Abedi A, Abegaz KH, Abhilash ES, Abidi H, Abiodun O, Aboagye RG, Abolhassani H, Abolmaali M, Abouzid M, Aboye GB, Abreu LG, Abrha WA, Abtahi D, Abu Rumeileh S, Abualruz H, Abubakar B, Abu-Gharbieh E, Abu-Rmeileh NME, Aburuz S, Abu-Zaid A, Accrombessi MMK, Adal TG, Adamu AA, Addo IY, Addolorato G, Adebiyi AO, Adekanmbi V, Adepoju AV, Adetunji CO, Adetunji JB, Adeyeoluwa TE, Adeyinka DA, Adeyomoye OI, Admass BAA, Adnani QES, Adra S, Afolabi AA, Afzal MS, Afzal S, Agampodi SB, Agasthi P, Aggarwal M, Aghamiri S, Agide FD, Agodi A, Agrawal A, Agyemang-Duah W, Ahinkorah BO, Ahmad A, Ahmad D, Ahmad F, Ahmad MM, Ahmad S, Ahmad S, Ahmad T, Ahmadi K, Ahmadzade AM, Ahmed A, Ahmed A, Ahmed H, Ahmed LA, Ahmed MS, Ahmed MS, Ahmed MB, Ahmed SA, Ajami M, Aji B, Akara EM, Akbarialiabad H, Akinosoglou K, Akinyemiju T, Akkaif MA, Akyirem S, Al Hamad H, Al Hasan SM, Alahdab F, Alalalmeh SO, Alalwan TA, Al-Aly Z, Alam K, Alam M, Alam N, Al-amer RM, Alanezi FM, Alanzi TM, Al-Azzam S, Albakri A, Albashtawy M, AlBataineh MT, Alcalde-Rabanal JE, Aldawsari KA, Aldhaleei WA, Aldridge RW, Alema HB, Alemayohu MA, Alemi S, Alemu YM, Al-Gheethi AAS, Alhabib KF, Alhalaiqa FAN, Al-Hanawi MK, Ali A, Ali A, Ali L, Ali MU, Ali R, Ali S, Ali SSS, Alicandro G, Alif SM, Alikhani R, Alimohamadi Y, Aliyi AA, Aljasir MAM, Aljunid SM, Alla F, Allebeck P, Al-Marwani S, Al-Maweri SAA, Almazan JU, Al-Mekhlafi HM, Almidani L, Almidani O, Alomari MA, Al-Omari B, Alonso J, Alqahtani JS, Alqalyoobi S, Alqutaibi AY, Al-Sabah SK, Altaany Z, Altaf A, Al-Tawfiq JA, Altirkawi KA, Aluh DO, Alvis-Guzman N, Alwafi H, Al-Worafi YM, Aly H, Aly S, Alzoubi KH, Amani R, Amare AT, Amegbor PM, Ameyaw EK, Amin TT, Amindarolzarbi A, Amiri S, Amirzade-Iranaq MH, Amu H, Amugsi DA, Amusa GA, Ancuceanu R, Anderlini D, Anderson DB, Andrade PP, Andrei CL, Andrei T, Angus C, Anil A, Anil S, Anoushiravani A, Ansari H, Ansariadi A, Ansari-Moghaddam A, Antony CM, Antriyandarti E, Anvari D, Anvari S, Anwar S, Anwar SL, Anwer R, Anyasodor AE, Aqeel M, Arab JP, Arabloo J, Arafat M, Aravkin AY, Areda D, Aremu A, Aremu O, Ariffin H, Arkew M, Armocida B, Arndt MB, Ärnlöv J, Arooj M, Artamonov AA, Arulappan J, Aruleba RT, Arumugam A, Asaad M, Asadi-Lari M, Asgedom AA, Asghariahmadabad M, Asghari-Jafarabadi M, Ashraf M, Aslani A, Astell-Burt T, Athar M, Athari SS, Atinafu BTT, Atlaw HW, Atorkey P, Atout MMW, Atreya A, Aujayeb A, Ausloos M, Avan A, Awedew AF, Aweke AM, Ayala Quintanilla BP, Ayatollahi H, Ayuso-Mateos JL, Ayyoubzadeh SM, Azadnajafabad S, Azevedo RMS, Azzam AY, B DB, Babu AS, Badar M, Badiye AD, Baghdadi S, Bagheri N, Bagherieh S, Bah S, Bahadorikhalili S, Bahmanziari N, Bai R, Baig AA, Baker JL, Bako AT, Bakshi RK, Balakrishnan S, Balasubramanian M, Baltatu OC, Bam K, Banach M, Bandyopadhyay S, Banik PC, Bansal H, Bansal K, Barbic F, Barchitta M, Bardhan M, Bardideh E, Barker-Collo SL, Bärnighausen TW, Barone-Adesi F, Barqawi HJ, Barrero LH, Barrow A, Barteit S, Barua L, Basharat Z, Bashiri A, Basiru A, Baskaran P, Basnyat B, Bassat Q, Basso JD, Basting AVL, Basu S, Batra K, Baune BT, Bayati M, Bayileyegn NS, Beaney T, Bedi N, Beghi M, Behboudi E, Behera P, Behnoush AH, Behzadifar M, Beiranvand M, Bejarano Ramirez DF, Béjot Y, Belay SA, Belete CM, Bell ML, Bello MB, Bello OO, Belo L, Beloukas A, Bender RG, Bensenor IM, Beran A, Berezvai Z, Berhie AY, Berice BN, Bernstein RS, Bertolacci GJ, Bettencourt PJG, Beyene KA, Bhagat DS, Bhagavathula AS, Bhala N, Bhalla A, Bhandari D, Bhangdia K, Bhardwaj N, Bhardwaj P, Bhardwaj PV, Bhargava A, Bhaskar S, Bhat V, Bhatti GK, Bhatti JS, Bhatti MS, Bhatti R, Bhutta ZA, Bikbov B, Bishai JD, Bisignano C, Bisulli F, Biswas A, Biswas B, Bitaraf S, Bitew BD, Bitra VR, Bjørge T, Boachie MK, Boampong MS, Bobirca AV, Bodolica V, Bodunrin AO, Bogale EK, Bogale KA, Bohlouli S, Bolarinwa OA, Boloor A, Bonakdar Hashemi M, Bonny A, Bora K, Bora Basara B, Borhany H, Borzutzky A, Bouaoud S, Boustany A, Boxe C, Boyko EJ, Brady OJ, Braithwaite D, Brant LC, Brauer M, Brazinova A, Brazo-Sayavera J, Breitborde NJK, Breitner S, Brenner H, Briko AN, Briko NI, Britton G, Brown J, Brugha T, Bulamu NB, Bulto LN, Buonsenso D, Burns RA, Busse R, Bustanji Y, Butt NS, Butt ZA, Caetano dos Santos FL, Calina D, Cámera LA, Campos LA, Campos-Nonato IR, Cao C, Cao Y, Capodici A, Cárdenas R, Carr S, Carreras G, Carrero JJ, Carugno A, Carvalheiro CG, Carvalho F, Carvalho M, Castaldelli-Maia JM, Castañeda-Orjuela CA, Castelpietra G, Catalá-López F, Catapano AL, Cattaruzza MS, Cederroth CR, Cegolon L, Cembranel F, Cenderadewi M, Cercy KM, Cerin E, Cevik M, Chadwick J, Chahine Y, Chakraborty C, Chakraborty PA, Chan JSK, Chan RNC, Chandika RM, Chandrasekar EK, Chang CK, Chang JC, Chanie GS, Charalampous P, Chattu VK, Chaturvedi P, Chatzimavridou-Grigoriadou V, Chaurasia A, Chen AW, Chen AT, Chen CS, Chen H, Chen MX, Chen S, Cheng CY, Cheng ETW, Cherbuin N, Cheru WA, Chien JH, Chimed-Ochir O, Chimoriya R, Ching PR, Chirinos-Caceres JL, Chitheer A, Cho WCS, Chong B, Chopra H, Choudhari SG, Chowdhury R, Christopher DJ, Chukwu IS, Chung E, Chung E, Chung E, Chung SC, Chutiyami M, Cindi Z, Cioffi I, Claassens MM, Claro RM, Coberly K, Cogen RM, Columbus A, Comfort H, Conde J, Cortese S, Cortesi PA, Costa VM, Costanzo S, Cousin E, Couto RAS, Cowden RG, Cramer KM, Criqui MH, Cruz-Martins N, Cuadra-Hernández SM, Culbreth GT, Cullen P, Cunningham M, Curado MP, Dadana S, Dadras O, Dai S, Dai X, Dai Z, Dalli LL, Damiani G, Darega Gela J, Das JK, Das S, Das S, Dascalu AM, Dash NR, Dashti M, Dastiridou A, Davey G, Dávila-Cervantes CA, Davis Weaver N, Davletov K, De Leo D, de Luca K, Debele AT, Debopadhaya S, Degenhardt L, Dehghan A, Deitesfeld L, Del Bo' C, Delgado-Enciso I, Demessa BH, Demetriades AK, Deng K, Deng X, Denova-Gutiérrez E, Deravi N, Dereje N, Dervenis N, Dervišević E, Des Jarlais DC, Desai HD, Desai R, Devanbu VGC, Dewan SMR, Dhali A, Dhama K, Dhimal M, Dhingra S, Dhulipala VR, Dias da Silva D, Diaz D, Diaz MJ, Dima A, Ding DD, Ding H, Dinis-Oliveira RJ, Dirac MA, Djalalinia S, Do THP, do Prado CB, Doaei S, Dodangeh M, Dodangeh M, Dohare S, Dokova KG, Dolecek C, Dominguez RMV, Dong W, Dongarwar D, D'Oria M, Dorostkar F, Dorsey ER, dos Santos WM, Doshi R, Doshmangir L, Dowou RK, Driscoll TR, Dsouza HL, Dsouza V, Du M, Dube J, Duncan BB, Duraes AR, Duraisamy S, Durojaiye OC, Dwyer-Lindgren L, Dzianach PA, Dziedzic AM, E'mar AR, Eboreime E, Ebrahimi A, Echieh CP, Edinur HA, Edvardsson D, Edvardsson K, Efendi D, Efendi F, Effendi DE, Eikemo TA, Eini E, Ekholuenetale M, Ekundayo TC, El Sayed I, Elbarazi I, Elema TB, Elemam NM, Elgar FJ, Elgendy IY, ElGohary GMT, Elhabashy HR, Elhadi M, El-Huneidi W, Elilo LT, Elmeligy OAA, Elmonem MA, Elshaer M, Elsohaby I, Emeto TI, Engelbert Bain L, Erkhembayar R, Esezobor CI, Eshrati B, Eskandarieh S, Espinosa-Montero J, Esubalew H, Etaee F, Fabin N, Fadaka AO, Fagbamigbe AF, Fahim A, Fahimi S, Fakhri-Demeshghieh A, Falzone L, Fareed M, Farinha CSES, Faris MEM, Faris PS, Faro A, Fasanmi AO, Fatehizadeh A, Fattahi H, Fauk NK, Fazeli P, Feigin VL, Feizkhah A, Fekadu G, Feng X, Fereshtehnejad SM, Feroze AH, Ferrante D, Ferrari AJ, Ferreira N, Fetensa G, Feyisa BR, Filip I, Fischer F, Flavel J, Flood D, Florin BT, Foigt NA, Folayan MO, Fomenkov AA, Foroutan B, Foroutan M, Forthun I, Fortuna D, Foschi M, Fowobaje KR, Francis KL, Franklin RC, Freitas A, Friedman J, Friedman SD, Fukumoto T, Fuller JE, Fux B, Gaal PA, Gadanya MA, Gaidhane AM, Gaihre S, Gakidou E, Galali Y, Galles NC, Gallus S, Ganbat M, Gandhi AP, Ganesan B, Ganiyani MA, Garcia-Gordillo MA, Gardner WM, Garg J, Garg N, Gautam RK, Gbadamosi SO, Gebi TG, Gebregergis MW, Gebrehiwot M, Gebremeskel TG, Georgescu SR, Getachew T, Gething PW, Getie M, Ghadiri K, Ghahramani S, Ghailan KY, Ghasemi MR, Ghasempour Dabaghi G, Ghasemzadeh A, Ghashghaee A, Ghassemi F, Ghazy RM, Ghimire A, Ghoba S, Gholamalizadeh M, Gholamian A, Gholamrezanezhad A, Gholizadeh N, Ghorbani M, Ghorbani Vajargah P, Ghoshal AG, Gill PS, Gill TK, Gillum RF, Ginindza TG, Girmay A, Glasbey JC, Gnedovskaya EV, Göbölös L, Godinho MA, Goel A, Golchin A, Goldust M, Golechha M, Goleij P, Gomes NGM, Gona PN, Gopalani SV, Gorini G, Goudarzi H, Goulart AC, Goulart BNG, Goyal A, Grada A, Graham SM, Grivna M, Grosso G, Guan SY, Guarducci G, Gubari MIM, Gudeta MD, Guha A, Guicciardi S, Guimarães RA, Gulati S, Gunawardane DA, Gunturu S, Guo C, Gupta AK, Gupta B, Gupta MK, Gupta M, Gupta RD, Gupta R, Gupta S, Gupta VB, Gupta VK, Gupta VK, Gurmessa L, Gutiérrez RA, Habibzadeh F, Habibzadeh P, Haddadi R, Hadei M, Hadi NR, Haep N, Hafezi-Nejad N, Hailu A, Haj-Mirzaian A, Halboub ES, Hall BJ, Haller S, Halwani R, Hamadeh RR, Hameed S, Hamidi S, Hamilton EB, Han C, Han Q, Hanif A, Hanifi N, Hankey GJ, Hanna F, Hannan MA, Haque MN, Harapan H, Hargono A, Haro JM, Hasaballah AI, Hasan I, Hasan MT, Hasani H, Hasanian M, Hashi A, Hasnain MS, Hassan I, Hassanipour S, Hassankhani H, Haubold J, Havmoeller RJ, Hay SI, He J, Hebert JJ, Hegazi OE, Heidari G, Heidari M, Heidari-Foroozan M, Helfer B, Hendrie D, Herrera-Serna BY, Herteliu C, Hesami H, Hezam K, Hill CL, Hiraike Y, Holla R, Horita N, Hossain MM, Hossain S, Hosseini MS, Hosseinzadeh H, Hosseinzadeh M, Hosseinzadeh Adli A, Hostiuc M, Hostiuc S, Hsairi M, Hsieh VCR, Hsu RL, Hu C, Huang J, Hultström M, Humayun A, Hundie TG, Hussain J, Hussain MA, Hussein NR, Hussien FM, Huynh HH, Hwang BF, Ibitoye SE, Ibrahim KS, Iftikhar PM, Ijo D, Ikiroma AI, Ikuta KS, Ikwegbue PC, Ilesanmi OS, Ilic IM, Ilic MD, Imam MT, Immurana M, Inamdar S, Indriasih E, Iqhrammullah M, Iradukunda A, Iregbu KC, Islam MR, Islam SMS, Islami F, Ismail F, Ismail NE, Iso H, Isola G, Iwagami M, Iwu CCD, Iyamu IO, Iyer M, J LM, Jaafari J, Jacob L, Jacobsen KH, Jadidi-Niaragh F, Jafarinia M, Jafarzadeh A, Jaggi K, Jahankhani K, Jahanmehr N, Jahrami H, Jain N, Jairoun AA, Jaiswal A, Jamshidi E, Janko MM, Jatau AI, Javadov S, Javaheri T, Jayapal SK, Jayaram S, Jebai R, Jee SH, Jeganathan J, Jha AK, Jha RP, Jiang H, Jin Y, Johnson O, Jokar M, Jonas JB, Joo T, Joseph A, Joseph N, Joshua CE, Joshy G, Jozwiak JJ, Jürisson M, K V, Kaambwa B, Kabir A, Kabir Z, Kadashetti V, Kadir DH, Kalani R, Kalankesh LR, Kalankesh LR, Kaliyadan F, Kalra S, Kamal VK, Kamarajah SK, Kamath R, Kamiab Z, Kamyari N, Kanagasabai T, Kanchan T, Kandel H, Kanmanthareddy AR, Kanmiki EW, Kanmodi KK, Kannan S S, Kansal SK, Kantar RS, Kapoor N, Karajizadeh M, Karanth SD, Karasneh RA, Karaye IM, Karch A, Karim A, Karimi SE, Karimi Behnagh A, Kashoo FZ, Kasnazani QHA, Kasraei H, Kassebaum NJ, Kassel MB, Kauppila JH, Kaur N, Kawakami N, Kayode GA, Kazemi F, Kazemian S, Kazmi TH, Kebebew GM, Kebede AD, Kebede F, Keflie TS, Keiyoro PN, Keller C, Kelly JT, Kempen JH, Kerr JA, Kesse-Guyot E, Khajuria H, Khalaji A, Khalid N, Khalil AA, Khalilian A, Khamesipour F, Khan A, Khan A, Khan G, Khan I, Khan IA, Khan MN, Khan M, Khan MJ, Khan MAB, Khan ZA, Khan suheb MZ, Khanmohammadi S, Khatab K, Khatami F, Khatatbeh H, Khatatbeh MM, Khavandegar A, Khayat Kashani HR, Khidri FF, Khodadoust E, Khorgamphar M, Khormali M, Khorrami Z, Khosravi A, Khosravi MA, Kifle ZD, Kim G, Kim J, Kim K, Kim MS, Kim YJ, Kimokoti RW, Kinzel KE, Kisa A, Kisa S, Klu D, Knudsen AKS, Kocarnik JM, Kochhar S, Kocsis T, Koh DSQ, Kolahi AA, Kolves K, Kompani F, Koren G, Kosen S, Kostev K, Koul PA, Koulmane Laxminarayana SL, Krishan K, Krishna H, Krishna V, Krishnamoorthy V, Krishnamoorthy Y, Krohn KJ, Kuate Defo B, Kucuk Bicer B, Kuddus MA, Kuddus M, Kuitunen I, Kulimbet M, Kulkarni V, Kumar A, Kumar A, Kumar H, Kumar M, Kumar R, Kumari M, Kumie FT, Kundu S, Kurmi OP, Kusnali A, Kusuma D, Kwarteng A, Kyriopoulos I, Kyu HH, La Vecchia C, Lacey B, Ladan MA, Laflamme L, Lagat AK, Lager ACJ, Lahmar A, Lai DTC, Lal DK, Lalloo R, Lallukka T, Lam H, Lám J, Landrum KR, Lanfranchi F, Lang JJ, Langguth B, Lansingh VC, Laplante-Lévesque A, Larijani B, Larsson AO, Lasrado S, Lassi ZS, Latief K, Latifinaibin K, Lauriola P, Le NHH, Le TTT, Le TDT, Ledda C, Ledesma JR, Lee M, Lee PH, Lee SW, Lee SWH, Lee WC, Lee YH, LeGrand KE, Leigh J, Leong E, Lerango TL, Li MC, Li W, Li X, Li Y, Li Z, Ligade VS, Likaka ATM, Lim LL, Lim SS, Lindstrom M, Linehan C, Liu C, Liu G, Liu J, Liu R, Liu S, Liu X, Liu X, Llanaj E, Loftus MJ, López-Bueno R, Lopukhov PD, Loreche AM, Lorkowski S, Lotufo PA, Lozano R, Lubinda J, Lucchetti G, Lugo A, Lunevicius R, Ma ZF, Maass KL, Machairas N, Machoy M, Madadizadeh F, Madsen C, Madureira-Carvalho ÁM, Maghazachi AA, Maharaj SB, Mahjoub S, Mahmoud MA, Mahmoudi A, Mahmoudi E, Mahmoudi R, Majeed A, Makhdoom IF, Malakan Rad E, Maled V, Malekzadeh R, Malhotra AK, Malhotra K, Malik AA, Malik I, Malta DC, Mamun AA, Mansouri P, Mansournia MA, Mantovani LG, Maqsood S, Marasini BP, Marateb HR, Maravilla JC, Marconi AM, Mardi P, Marino M, Marjani A, Martinez G, Martinez-Guerra BA, Martinez-Piedra R, Martini D, Martini S, Martins-Melo FR, Martorell M, Marx W, Maryam S, Marzo RR, Masaka A, Masrie A, Mathieson S, Mathioudakis AG, Mathur MR, Mattumpuram J, Matzopoulos R, Maude RJ, Maugeri A, Maulik PK, Mayeli M, Mazaheri M, Mazidi M, McGrath JJ, McKee M, McKowen ALW, McLaughlin SA, McPhail SM, Mechili EA, Medina JRC, Mediratta RP, Meena JK, Mehra R, Mehrabani-Zeinabad K, Mehrabi Nasab E, Mekene Meto T, Meles GG, Mendez-Lopez MAM, Mendoza W, Menezes RG, Mengist B, Mentis AFA, Meo SA, Meresa HA, Meretoja A, Meretoja TJ, Mersha AM, Mesfin BA, Mestrovic T, Mettananda KCD, Mettananda S, Meylakhs P, Mhlanga A, Mhlanga L, Mi T, Miazgowski T, Micha G, Michalek IM, Miller TR, Mills EJ, Minh LHN, Mini GK, Mir Mohammad Sadeghi P, Mirica A, Mirijello A, Mirrakhimov EM, Mirutse MK, Mirzaei M, Misganaw A, Mishra A, Misra S, Mitchell PB, Mithra P, Mittal C, Mobayen M, Moberg ME, Mohamadkhani A, Mohamed J, Mohamed MFH, Mohamed NS, Mohammad-Alizadeh-Charandabi S, Mohammadi S, Mohammadian-Hafshejani A, Mohammadifard N, Mohammed H, Mohammed H, Mohammed M, Mohammed S, Mohammed S, Mohan V, Mojiri-Forushani H, Mokari A, Mokdad AH, Molinaro S, Molokhia M, Momtazmanesh S, Monasta L, Mondello S, Moni MA, Moodi Ghalibaf A, Moradi M, Moradi Y, Moradi-Lakeh M, Moradzadeh M, Moraga P, Morawska L, Moreira RS, Morovatdar N, Morrison SD, Morze J, Mosser JF, Motappa R, Mougin V, Mouodi S, Mousavi P, Mousavi SE, Mousavi Khaneghah A, Mpolya EA, Mrejen M, Mubarik S, Muccioli L, Mueller UO, Mughal F, Mukherjee S, Mulita F, Munjal K, Murillo-Zamora E, Musaigwa F, Musallam KM, Mustafa A, Mustafa G, Muthupandian S, Muthusamy R, Muzaffar M, Myung W, Nagarajan AJ, Nagel G, Naghavi P, Naheed A, Naik GR, Naik G, Nainu F, Nair S, Najmuldeen HHR, Nakhostin Ansari N, Nangia V, Naqvi AA, Narasimha Swamy S, Narayana AI, Nargus S, Nascimento BR, Nascimento GG, Nasehi S, Nashwan AJ, Natto ZS, Nauman J, Naveed M, Nayak BP, Nayak VC, Nazri-Panjaki A, Ndejjo R, Nduaguba SO, Negash H, Negoi I, Negoi RI, Negru SM, Nejadghaderi SA, Nejjari C, Nena E, Nepal S, Ng M, Nggada HA, Nguefack-Tsague G, Ngunjiri JW, Nguyen AH, Nguyen DH, Nguyen HTH, Nguyen PT, Nguyen VT, Niazi RK, Nielsen KR, Nigatu YT, Nikolouzakis TK, Nikoobar A, Nikoomanesh F, Nikpoor AR, Ningrum DNA, Nnaji CA, Nnyanzi LA, Noman EA, Nomura S, Noreen M, Noroozi N, Norrving B, Noubiap JJ, Novotney A, Nri-Ezedi CA, Ntaios G, Ntsekhe M, Nuñez-Samudio V, Nurrika D, Nutor JJ, Oancea B, Obamiro KO, Oboh MA, Odetokun IA, Odogwu NM, O'Donnell MJ, Oduro MS, Ofakunrin AOD, Ogunkoya A, Oguntade AS, Oh IH, Okati-Aliabad H, Okeke SR, Okekunle AP, Okonji OC, Olagunju AT, Olaiya MT, Olatubi MI, Oliveira GMM, Olufadewa II, Olusanya BO, Olusanya JO, Oluwafemi YD, Omar HA, Omar Bali A, Omer GL, Ondayo MA, Ong S, Onwujekwe OE, Onyedibe KI, Ordak M, Orisakwe OE, Orish VN, Ortega-Altamirano DV, Ortiz A, Osman WMS, Ostroff SM, Osuagwu UL, Otoiu A, Otstavnov N, Otstavnov SS, Ouyahia A, Ouyang G, Owolabi MO, Ozten Y, P A MP, Padron-Monedero A, Padubidri JR, Pal PK, Palicz T, Palladino C, Palladino R, Palma-Alvarez RF, Pan F, Pan HF, Pana A, Panda P, Panda-Jonas S, Pandi-Perumal SR, Pangaribuan HU, Panos GD, Panos LD, Pantazopoulos I, Pantea Stoian AM, Papadopoulou P, Parikh RR, Park S, Parthasarathi A, Pashaei A, Pasovic M, Passera R, Pasupula DK, Patel HM, Patel J, Patel SK, Patil S, Patoulias D, Patthipati VS, Paudel U, Pazoki Toroudi H, Pease SA, Peden AE, Pedersini P, Pensato U, Pepito VCF, Peprah EK, Peprah P, Perdigão J, Pereira M, Peres MFP, Perianayagam A, Perico N, Pestell RG, Pesudovs K, Petermann-Rocha FE, Petri WA, Pham HT, Philip AK, Phillips MR, Pierannunzio D, Pigeolet M, Pigott DM, Pilgrim T, Piracha ZZ, Piradov MA, Pirouzpanah S, Plakkal N, Plotnikov E, Podder V, Poddighe D, Polinder S, Polkinghorne KR, Poluru R, Ponkilainen VT, Porru F, Postma MJ, Poudel GR, Pourshams A, Pourtaheri N, Prada SI, Pradhan PMS, Prakasham TN, Prasad M, Prashant A, Prates EJS, Prieto Alhambra D, PRISCILLA TINA, Pritchett N, Purohit BM, Puvvula J, Qasim NH, Qattea I, Qazi AS, Qian G, Qiu S, Qureshi MF, Rabiee Rad M, Radfar A, Radhakrishnan RA, Radhakrishnan V, Raeisi Shahraki H, Rafferty Q, Raggi A, Raghav PR, Raheem N, Rahim F, Rahim MJ, Rahimi-Movaghar V, Rahman MM, Rahman MHU, Rahman M, Rahman MA, Rahmani AM, Rahmani S, Rahmanian V, Rajaa S, Rajput P, Rakovac I, Ramasamy SK, Ramazanu S, Rana K, Ranabhat CL, Rancic N, Rane A, Rao CR, Rao IR, Rao M, Rao SJ, Rasali DP, Rasella D, Rashedi S, Rashedi V, Rashidi MM, Rasouli-Saravani A, Rasul A, Rathnaiah Babu G, Rauniyar SK, Ravangard R, Ravikumar N, Rawaf DL, Rawaf S, Rawal L, Rawassizadeh R, Rawlley B, Raza RZ, Razo C, Redwan EMM, Rehman FU, Reifels L, Reiner Jr RC, Remuzzi G, Reyes LF, Rezaei M, Rezaei N, Rezaei N, Rezaeian M, Rhee TG, Riaz MA, Ribeiro ALP, Rickard J, Riva HR, Robinson-Oden HE, Rodrigues CF, Rodrigues M, Roever L, Rogowski ELB, Rohloff P, Romadlon DS, Romero-Rodríguez E, Romoli M, Ronfani L, Roshandel G, Roth GA, Rout HS, Roy N, Roy P, Rubagotti E, Ruela GDA, Rumisha SF, Runghien T, Rwegerera GM, Rynkiewicz A, S N C, Saad AMA, Saadatian Z, Saber K, Saber-Ayad MM, SaberiKamarposhti M, Sabour S, Sacco S, Sachdev PS, Sachdeva R, Saddik B, Saddler A, Sadee BA, Sadeghi E, Sadeghi E, Sadeghian F, Saeb MR, Saeed U, Safaeinejad F, Safi SZ, Sagar R, Saghazadeh A, Sagoe D, Saheb Sharif-Askari F, Saheb Sharif-Askari N, Sahebkar A, Sahoo SS, Sahoo U, Sahu M, Saif Z, Sajid MR, Sakshaug JW, Salam N, Salamati P, Salami AA, Salaroli LB, Saleh MA, Salehi S, Salem MR, Salem MZY, Salimi S, Samadi Kafil H, Samadzadeh S, Samargandy S, Samodra YL, Samy AM, Sanabria J, Sanna F, Santomauro DF, Santos IS, Santric-Milicevic MM, Sao Jose BP, Sarasmita MA, Saraswathy SYI, Saravanan A, Saravi B, Sarikhani Y, Sarkar T, Sarmiento-Suárez R, Sarode GS, Sarode SC, Sarveazad A, Sathian B, Sathish T, Satpathy M, Sayeed A, Sayeed MA, Saylan M, Sayyah M, Scarmeas N, Schaarschmidt BM, Schlaich MP, Schlee W, Schmidt MI, Schneider IJC, Schuermans A, Schumacher AE, Schutte AE, Schwarzinger M, Schwebel DC, Schwendicke F, Šekerija M, Selvaraj S, Senapati S, Senthilkumaran S, Sepanlou SG, Serban D, Sethi Y, Sha F, Shabany M, Shafaat A, Shafie M, Shah NS, Shah PA, Shah SM, Shahabi S, Shahbandi A, Shahid I, Shahid S, Shahid W, Shahsavari HR, Shahwan MJ, Shaikh A, Shaikh MA, Shakeri A, Shalash AS, Sham S, Shamim MA, Shams-Beyranvand M, Shamshad H, Shamsi MA, Shanawaz M, Shankar A, Sharfaei S, Sharifan A, Sharifi-Rad J, Sharma R, Sharma S, Sharma U, Sharma V, Shastry RP, Shavandi A, Shayan M, Shehabeldine AME, Sheikh A, Sheikhi RA, Shen J, Shetty A, Shetty BSK, Shetty PH, Shi P, Shibuya K, Shiferaw D, Shigematsu M, Shin MJ, Shin YH, Shiri R, Shirkoohi R, Shitaye NA, Shittu A, Shiue I, Shivakumar KM, Shivarov V, Shokraneh F, Shokri A, Shool S, Shorofi SA, Shrestha S, Shuval K, Siddig EE, Silva JP, Silva LMLR, Silva S, Simpson CR, Singal A, Singh A, Singh BB, Singh G, Singh J, Singh NP, Singh P, Singh S, Sinha DN, Sinto R, Siraj MS, Sirota SB, Sitas F, Sivakumar S, Skryabin VY, Skryabina AA, Sleet DA, Socea B, Sokhan A, Solanki R, Solanki S, Soleimani H, Soliman SSM, Song S, Song Y, Sorensen RJD, Soriano JB, Soyiri IN, Spartalis M, Spearman S, Sreeramareddy CT, Srivastava VK, Stanaway JD, Stanikzai MH, Stark BA, Starnes JR, Starodubova AV, Stein C, Stein DJ, Steinbeis F, Steiner C, Steinmetz JD, Steiropoulos P, Stevanović A, Stockfelt L, Stokes MA, Stortecky S, Subramaniyan V, Suleman M, Suliankatchi Abdulkader R, Sultana A, Sun HZ, Sun J, Sundström J, Sunkersing D, Sunnerhagen KS, Swain CK, Szarpak L, Szeto MD, Szócska M, Tabaee Damavandi P, Tabarés-Seisdedos R, Tabatabaei SM, Tabatabaei Malazy O, Tabatabaeizadeh SA, Tabatabai S, Tabish M, TADAKAMADLA JYOTHI, Tadakamadla SK, Taheri Abkenar Y, Taheri Soodejani M, Taiba J, Takahashi K, Talaat IM, Talukder A, Tampa M, Tamuzi JL, Tan KK, Tandukar S, Tang H, Tang HK, Tarigan IU, Tariku MK, Tariqujjaman M, Tarkang EE, Tavakoli Oliaee R, Tavangar SM, Taveira N, Tefera YM, Temsah MH, Temsah RMH, Teramoto M, Tesler R, Teye-Kwadjo E, Thakur R, Thangaraju P, Thankappan KR, Tharwat S, Thayakaran R, Thomas N, Thomas NK, Thomson AM, Thrift AG, Thum CCC, Thygesen LC, Tian J, Tichopad A, Ticoalu JHV, Tillawi T, Tiruye TY, Titova MV, Tonelli M, Topor-Madry R, Toriola AT, Torre AE, Touvier M, Tovani-Palone MR, Tran JT, Tran NM, Trico D, Tromans SJ, Truyen TTTT, Tsatsakis A, Tsegay GM, Tsermpini EE, Tumurkhuu M, Tung K, Tyrovolas S, Uddin SMN, Udoakang AJ, Udoh A, Ullah A, Ullah I, Ullah S, Ullah S, Umakanthan S, Umeokonkwo CD, Unim B, Unnikrishnan B, Unsworth CA, Upadhyay E, Urso D, Usman JS, Vahabi SM, Vaithinathan AG, Valizadeh R, Van de Velde SM, Van den Eynde J, Varga O, Vart P, Varthya SB, Vasankari TJ, Vasic M, Vaziri S, Vellingiri B, Venketasubramanian N, Verghese NA, Verma M, Veroux M, Verras GI, Vervoort D, Villafañe JH, Villanueva GI, Vinayak M, Violante FS, Viskadourou M, Vladimirov SK, Vlassov V, Vo B, Vollset SE, Vongpradith A, Vos T, Vujcic IS, Vukovic R, Wafa HA, Waheed Y, Wamai RG, Wang C, Wang N, Wang S, Wang S, Wang Y, Wang YP, Waqas M, Ward P, Wassie EG, Watson S, Watson SLW, Weerakoon KG, Wei MY, Weintraub RG, Weiss DJ, Westerman R, Whisnant JL, Wiangkham T, Wickramasinghe DP, Wickramasinghe ND, Wilandika A, Wilkerson C, Willeit P, Wilson S, Wojewodzic MW, Woldegebreal DH, Wolf AW, Wolfe CDA, Wondimagegene YA, Wong YJ, Wongsin U, Wu AM, Wu C, Wu F, Wu X, Wu Z, Xia J, Xiao H, Xie Y, Xu S, Xu WD, Xu X, Xu YY, Yadollahpour A, Yamagishi K, Yang D, Yang L, Yano Y, Yao Y, Yaribeygi H, Ye P, Yehualashet SS, Yesiltepe M, Yesuf SA, Yezli S, Yi S, Yigezu A, Yiğit A, Yiğit V, Yip P, Yismaw MB, Yismaw Y, Yon DK, Yonemoto N, Yoon SJ, You Y, Younis MZ, Yousefi Z, Yu C, Yu Y, Yuh FH, Zadey S, Zadnik V, Zafari N, Zakham F, Zaki N, Zaman SB, Zamora N, Zand R, Zangiabadian M, Zar HJ, Zare I, Zarrintan A, Zeariya MGM, Zeinali Z, Zhang H, Zhang J, Zhang J, Zhang L, Zhang Y, Zhang ZJ, Zhao H, Zhong C, Zhou J, Zhu B, Zhu L, Ziafati M, Zielińska M, Zitoun OA, Zoladl M, Zou Z, Zuhlke LJ, Zumla A, Zweck E, Zyoud SH, Wool EE, Murray CJL. Global burden of 288 causes of death and life expectancy decomposition in 204 countries and territories and 811 subnational locations, 1990-2021: a systematic analysis for the Global Burden of Disease Study 2021. Lancet 2024:S0140-6736(24)00367-2. [PMID: 38582094 DOI: 10.1016/s0140-6736(24)00367-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 02/15/2024] [Accepted: 02/22/2024] [Indexed: 04/08/2024]
Abstract
BACKGROUND Regular, detailed reporting on population health by underlying cause of death is fundamental for public health decision making. Cause-specific estimates of mortality and the subsequent effects on life expectancy worldwide are valuable metrics to gauge progress in reducing mortality rates. These estimates are particularly important following large-scale mortality spikes, such as the COVID-19 pandemic. When systematically analysed, mortality rates and life expectancy allow comparisons of the consequences of causes of death globally and over time, providing a nuanced understanding of the effect of these causes on global populations. METHODS The Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2021 cause-of-death analysis estimated mortality and years of life lost (YLLs) from 288 causes of death by age-sex-location-year in 204 countries and territories and 811 subnational locations for each year from 1990 until 2021. The analysis used 56 604 data sources, including data from vital registration and verbal autopsy as well as surveys, censuses, surveillance systems, and cancer registries, among others. As with previous GBD rounds, cause-specific death rates for most causes were estimated using the Cause of Death Ensemble model-a modelling tool developed for GBD to assess the out-of-sample predictive validity of different statistical models and covariate permutations and combine those results to produce cause-specific mortality estimates-with alternative strategies adapted to model causes with insufficient data, substantial changes in reporting over the study period, or unusual epidemiology. YLLs were computed as the product of the number of deaths for each cause-age-sex-location-year and the standard life expectancy at each age. As part of the modelling process, uncertainty intervals (UIs) were generated using the 2·5th and 97·5th percentiles from a 1000-draw distribution for each metric. We decomposed life expectancy by cause of death, location, and year to show cause-specific effects on life expectancy from 1990 to 2021. We also used the coefficient of variation and the fraction of population affected by 90% of deaths to highlight concentrations of mortality. Findings are reported in counts and age-standardised rates. Methodological improvements for cause-of-death estimates in GBD 2021 include the expansion of under-5-years age group to include four new age groups, enhanced methods to account for stochastic variation of sparse data, and the inclusion of COVID-19 and other pandemic-related mortality-which includes excess mortality associated with the pandemic, excluding COVID-19, lower respiratory infections, measles, malaria, and pertussis. For this analysis, 199 new country-years of vital registration cause-of-death data, 5 country-years of surveillance data, 21 country-years of verbal autopsy data, and 94 country-years of other data types were added to those used in previous GBD rounds. FINDINGS The leading causes of age-standardised deaths globally were the same in 2019 as they were in 1990; in descending order, these were, ischaemic heart disease, stroke, chronic obstructive pulmonary disease, and lower respiratory infections. In 2021, however, COVID-19 replaced stroke as the second-leading age-standardised cause of death, with 94·0 deaths (95% UI 89·2-100·0) per 100 000 population. The COVID-19 pandemic shifted the rankings of the leading five causes, lowering stroke to the third-leading and chronic obstructive pulmonary disease to the fourth-leading position. In 2021, the highest age-standardised death rates from COVID-19 occurred in sub-Saharan Africa (271·0 deaths [250·1-290·7] per 100 000 population) and Latin America and the Caribbean (195·4 deaths [182·1-211·4] per 100 000 population). The lowest age-standardised death rates from COVID-19 were in the high-income super-region (48·1 deaths [47·4-48·8] per 100 000 population) and southeast Asia, east Asia, and Oceania (23·2 deaths [16·3-37·2] per 100 000 population). Globally, life expectancy steadily improved between 1990 and 2019 for 18 of the 22 investigated causes. Decomposition of global and regional life expectancy showed the positive effect that reductions in deaths from enteric infections, lower respiratory infections, stroke, and neonatal deaths, among others have contributed to improved survival over the study period. However, a net reduction of 1·6 years occurred in global life expectancy between 2019 and 2021, primarily due to increased death rates from COVID-19 and other pandemic-related mortality. Life expectancy was highly variable between super-regions over the study period, with southeast Asia, east Asia, and Oceania gaining 8·3 years (6·7-9·9) overall, while having the smallest reduction in life expectancy due to COVID-19 (0·4 years). The largest reduction in life expectancy due to COVID-19 occurred in Latin America and the Caribbean (3·6 years). Additionally, 53 of the 288 causes of death were highly concentrated in locations with less than 50% of the global population as of 2021, and these causes of death became progressively more concentrated since 1990, when only 44 causes showed this pattern. The concentration phenomenon is discussed heuristically with respect to enteric and lower respiratory infections, malaria, HIV/AIDS, neonatal disorders, tuberculosis, and measles. INTERPRETATION Long-standing gains in life expectancy and reductions in many of the leading causes of death have been disrupted by the COVID-19 pandemic, the adverse effects of which were spread unevenly among populations. Despite the pandemic, there has been continued progress in combatting several notable causes of death, leading to improved global life expectancy over the study period. Each of the seven GBD super-regions showed an overall improvement from 1990 and 2021, obscuring the negative effect in the years of the pandemic. Additionally, our findings regarding regional variation in causes of death driving increases in life expectancy hold clear policy utility. Analyses of shifting mortality trends reveal that several causes, once widespread globally, are now increasingly concentrated geographically. These changes in mortality concentration, alongside further investigation of changing risks, interventions, and relevant policy, present an important opportunity to deepen our understanding of mortality-reduction strategies. Examining patterns in mortality concentration might reveal areas where successful public health interventions have been implemented. Translating these successes to locations where certain causes of death remain entrenched can inform policies that work to improve life expectancy for people everywhere. FUNDING Bill & Melinda Gates Foundation.
Collapse
|
3
|
Premawardhena A, Perera C, Wijethilaka MN, Wanasinghe SK, Rajakaruna RHMG, Samarasinghe RANKK, Williams S, Mettananda S. Efficacy and safety of deferoxamine, deferasirox and deferiprone triple iron chelator combination therapy for transfusion-dependent β-thalassaemia with very high iron overload: a protocol for randomised controlled clinical trial. BMJ Open 2024; 14:e077342. [PMID: 38331857 PMCID: PMC10860110 DOI: 10.1136/bmjopen-2023-077342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Accepted: 01/26/2024] [Indexed: 02/10/2024] Open
Abstract
INTRODUCTION Despite the improvement in medical management, many patients with transfusion-dependent β-thalassaemia die prematurely due to transfusion-related iron overload. As per the current guidelines, the optimal chelation of iron cannot be achieved in many patients, even with two iron chelators at their maximum therapeutic doses. Here, we evaluate the efficacy and safety of triple combination treatment with deferoxamine, deferasirox and deferiprone over dual combination of deferoxamine and deferasirox on iron chelation in patients with transfusion-dependent β-thalassaemia with very high iron overload. METHODS AND ANALYSIS This is a single-centre, open-label, randomised, controlled clinical trial conducted at the Adult and Adolescent Thalassaemia Centre of Colombo North Teaching Hospital, Ragama, Sri Lanka. Patients with haematologically and genetically confirmed transfusion-dependent β-thalassaemia are enrolled and randomised into intervention or control groups. The intervention arm will receive a combination of oral deferasirox, oral deferiprone and subcutaneous deferoxamine for 6 months. The control arm will receive the combination of oral deferasirox and subcutaneous deferoxamine for 6 months. Reduction in iron overload, as measured by a reduction in the serum ferritin after completion of the treatment, will be the primary outcome measure. Reduction in liver and cardiac iron content as measured by T2* MRI and the side effect profile of trial medications are the secondary outcome measures. ETHICS AND DISSEMINATION Ethical approval for the study has been obtained from the Ethics Committee of the Faculty of Medicine, University of Kelaniya (Ref. P/06/02/2023). The trial results will be disseminated in scientific publications in reputed journals. TRIAL REGISTRATION NUMBER The trial is registered in the Sri Lanka Clinical Trials Registry (Ref: SLCTR/2023/010).
Collapse
Affiliation(s)
- Anuja Premawardhena
- Colombo North Teaching Hospital, Ragama, Sri Lanka
- Department of Medicine, University of Kelaniya, Kelaniya, Sri Lanka
| | - Chamodi Perera
- Department of Paediatrics, University of Kelaniya, Kelaniya, Sri Lanka
| | | | | | | | | | - Senani Williams
- Department of Pathology, University of Kelaniya, Kelaniya, Sri Lanka
| | - Sachith Mettananda
- Colombo North Teaching Hospital, Ragama, Sri Lanka
- Department of Paediatrics, University of Kelaniya, Kelaniya, Sri Lanka
| |
Collapse
|
4
|
Fejzo M, Rocha N, Cimino I, Lockhart SM, Petry CJ, Kay RG, Burling K, Barker P, George AL, Yasara N, Premawardhena A, Gong S, Cook E, Rimmington D, Rainbow K, Withers DJ, Cortessis V, Mullin PM, MacGibbon KW, Jin E, Kam A, Campbell A, Polasek O, Tzoneva G, Gribble FM, Yeo GSH, Lam BYH, Saudek V, Hughes IA, Ong KK, Perry JRB, Sutton Cole A, Baumgarten M, Welsh P, Sattar N, Smith GCS, Charnock-Jones DS, Coll AP, Meek CL, Mettananda S, Hayward C, Mancuso N, O'Rahilly S. GDF15 linked to maternal risk of nausea and vomiting during pregnancy. Nature 2024; 625:760-767. [PMID: 38092039 PMCID: PMC10808057 DOI: 10.1038/s41586-023-06921-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 11/30/2023] [Indexed: 01/19/2024]
Abstract
GDF15, a hormone acting on the brainstem, has been implicated in the nausea and vomiting of pregnancy, including its most severe form, hyperemesis gravidarum (HG), but a full mechanistic understanding is lacking1-4. Here we report that fetal production of GDF15 and maternal sensitivity to it both contribute substantially to the risk of HG. We confirmed that higher GDF15 levels in maternal blood are associated with vomiting in pregnancy and HG. Using mass spectrometry to detect a naturally labelled GDF15 variant, we demonstrate that the vast majority of GDF15 in the maternal plasma is derived from the feto-placental unit. By studying carriers of rare and common genetic variants, we found that low levels of GDF15 in the non-pregnant state increase the risk of developing HG. Conversely, women with β-thalassaemia, a condition in which GDF15 levels are chronically high5, report very low levels of nausea and vomiting of pregnancy. In mice, the acute food intake response to a bolus of GDF15 is influenced bi-directionally by prior levels of circulating GDF15 in a manner suggesting that this system is susceptible to desensitization. Our findings support a putative causal role for fetally derived GDF15 in the nausea and vomiting of human pregnancy, with maternal sensitivity, at least partly determined by prepregnancy exposure to the hormone, being a major influence on its severity. They also suggest mechanism-based approaches to the treatment and prevention of HG.
Collapse
Affiliation(s)
- M Fejzo
- Center for Genetic Epidemiology, Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - N Rocha
- Medical Research Council (MRC) Metabolic Diseases Unit, Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - I Cimino
- Medical Research Council (MRC) Metabolic Diseases Unit, Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - S M Lockhart
- Medical Research Council (MRC) Metabolic Diseases Unit, Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - C J Petry
- Medical Research Council (MRC) Metabolic Diseases Unit, Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - R G Kay
- Medical Research Council (MRC) Metabolic Diseases Unit, Institute of Metabolic Science, University of Cambridge, Cambridge, UK
- Peptidomics and Proteomics Core Facility, Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - K Burling
- Medical Research Council (MRC) Metabolic Diseases Unit, Institute of Metabolic Science, University of Cambridge, Cambridge, UK
- Core Biochemical Assay Laboratory, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - P Barker
- Medical Research Council (MRC) Metabolic Diseases Unit, Institute of Metabolic Science, University of Cambridge, Cambridge, UK
- Core Biochemical Assay Laboratory, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - A L George
- Peptidomics and Proteomics Core Facility, Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - N Yasara
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Thalagolla Road, Ragama, Sri Lanka
| | - A Premawardhena
- Adolescent and Adult Thalassaemia Care Center (University Medical Unit), North Colombo Teaching Hospital, Kadawatha, Sri Lanka
- Department of Medicine, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka
| | - S Gong
- Department of Obstetrics and Gynaecology, University of Cambridge, NIHR Cambridge Biomedical Research Centre, Cambridge, UK
- Centre for Trophoblast Research (CTR), Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
| | - E Cook
- Department of Obstetrics and Gynaecology, University of Cambridge, NIHR Cambridge Biomedical Research Centre, Cambridge, UK
| | - D Rimmington
- Medical Research Council (MRC) Metabolic Diseases Unit, Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - K Rainbow
- Medical Research Council (MRC) Metabolic Diseases Unit, Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - D J Withers
- Medical Research Council (MRC) Metabolic Diseases Unit, Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - V Cortessis
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - P M Mullin
- Department of Obstetrics and Gynaecology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - K W MacGibbon
- Hyperemesis Education and Research Foundation, Clackamas, OR, USA
| | - E Jin
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - A Kam
- Department of Obstetrics and Gynaecology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - A Campbell
- Centre for Genomic and Experimental Medicine, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - O Polasek
- Faculty of Medicine, University of Split, Split, Croatia
| | - G Tzoneva
- Regeneron Genetics Center, Tarrytown, NY, USA
| | - F M Gribble
- Medical Research Council (MRC) Metabolic Diseases Unit, Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - G S H Yeo
- Medical Research Council (MRC) Metabolic Diseases Unit, Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - B Y H Lam
- Medical Research Council (MRC) Metabolic Diseases Unit, Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - V Saudek
- Medical Research Council (MRC) Metabolic Diseases Unit, Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - I A Hughes
- Department of Paediatrics, University of Cambridge, Cambridge, UK
| | - K K Ong
- Department of Paediatrics, University of Cambridge, Cambridge, UK
- MRC Epidemiology Unit, Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - J R B Perry
- Medical Research Council (MRC) Metabolic Diseases Unit, Institute of Metabolic Science, University of Cambridge, Cambridge, UK
- MRC Epidemiology Unit, Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - A Sutton Cole
- Department of Obstetrics and Gynaecology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - M Baumgarten
- Department of Obstetrics and Gynaecology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - P Welsh
- School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow, UK
| | - N Sattar
- School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow, UK
| | - G C S Smith
- Department of Obstetrics and Gynaecology, University of Cambridge, NIHR Cambridge Biomedical Research Centre, Cambridge, UK
- Centre for Trophoblast Research (CTR), Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
| | - D S Charnock-Jones
- Department of Obstetrics and Gynaecology, University of Cambridge, NIHR Cambridge Biomedical Research Centre, Cambridge, UK
- Centre for Trophoblast Research (CTR), Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
| | - A P Coll
- Medical Research Council (MRC) Metabolic Diseases Unit, Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - C L Meek
- Medical Research Council (MRC) Metabolic Diseases Unit, Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - S Mettananda
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Thalagolla Road, Ragama, Sri Lanka
- University Paediatrics Unit, Colombo North Teaching Hospital, Ragama, Sri Lanka
| | - C Hayward
- Centre for Genomic and Experimental Medicine, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - N Mancuso
- Center for Genetic Epidemiology, Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
- Department of Quantitative and Computational Biology, University of Southern California, California, CA, USA
- Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, California, CA, USA
| | - S O'Rahilly
- Medical Research Council (MRC) Metabolic Diseases Unit, Institute of Metabolic Science, University of Cambridge, Cambridge, UK.
- NIHR Cambridge Biomedical Research Centre, Cambridge, UK.
| |
Collapse
|
5
|
Karusheva Y, Petry CJ, Yasara N, Kottahachchi D, Premawardhena A, Barker P, Burling K, Sattar N, Welsh P, Mettananda S, O'Rahilly S. Association of GDF15 levels with body mass index and endocrine status in β-thalassaemia. Clin Endocrinol (Oxf) 2023; 99:182-189. [PMID: 36806122 PMCID: PMC10952638 DOI: 10.1111/cen.14897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 02/08/2023] [Accepted: 02/16/2023] [Indexed: 02/23/2023]
Abstract
OBJECTIVE GDF15 has emerged as a stress-induced hormone, acting on the brain to reduce food intake and body weight while affecting neuroendocrine function. Very high GDF15 levels are found in thalassaemia, where growth, energy balance and neuroendocrine function are impaired. We examined the relationships between GDF15 and anthropometric measures and endocrine status in β-thalassaemia. DESIGN Cross sectional study. PATIENTS All β-thalassaemia patients attending the thalassaemia unit of Colombo North Teaching Hospital for blood transfusions. MEASUREMENTS Anthropometric data, appetite scores, circulating GDF15, IGF, thyroid and reproductive hormone levels in 103 β-thalassaemia patients were obtained. RESULTS GDF15 levels were markedly elevated in thalassaemia patients (24.2-fold with β-thalassaemia major compared with healthy controls). Among patients with β-thalassaemia major, the relationship between GDF15 and body mass index (BMI) was curvilinear with all individuals with GDF15 levels above 24,000 pg/mL having a BMI below 20 kg/m2 . After adjustment for BMI, age and Tanner stage, serum IGF1 concentrations correlated negatively with GDF15 in all thalassaemia patients (β = -.027, p = .02). We found a significant positive relationship between GDF15 and gonadotropin (in both sexes) and testosterone (in males). CONCLUSIONS GDF15 levels were markedly elevated in patients with β-thalassaemia and its association with BMI is consistent with the known effect of GDF15 to reduce body weight. The inverse association between GDF15 with IGF1 levels may reflect a neuroendocrine impact of GDF15 or an indirect effect via impaired nutritional state. The positive association with testosterone in males and gonadotropins in both sexes, was surprising and should prompt further GDF15 studies on the hypothalamic pituitary gonadal axis.
Collapse
Affiliation(s)
- Yanislava Karusheva
- MRC Metabolic Diseases Unit, Wellcome‐MRC Institute of Metabolic ScienceUniversity of CambridgeCambridgeUK
- NIHR Cambridge Biomedical Research CentreCambridgeUK
| | - Clive J. Petry
- MRC Metabolic Diseases Unit, Wellcome‐MRC Institute of Metabolic ScienceUniversity of CambridgeCambridgeUK
- NIHR Cambridge Biomedical Research CentreCambridgeUK
| | - Nirmani Yasara
- Department of Paediatrics, Faculty of MedicineUniversity of KelaniyaRagamaSri Lanka
| | - Dulani Kottahachchi
- Department of Physiology, Faculty of MedicineUniversity of KelaniyaRagamaSri Lanka
| | - Anuja Premawardhena
- Colombo North Teaching HospitalRagamaSri Lanka
- Department of Medicine, Faculty of MedicineUniversity of KelaniyaRagamaSri Lanka
| | - Peter Barker
- NIHR Cambridge Biomedical Research CentreCambridgeUK
- Core Biochemical Assay LaboratoryCambridge University Hospitals NHS Foundation TrustCambridgeUK
| | - Keith Burling
- NIHR Cambridge Biomedical Research CentreCambridgeUK
- Core Biochemical Assay LaboratoryCambridge University Hospitals NHS Foundation TrustCambridgeUK
| | - Naveed Sattar
- University of Glasgow, School of Cardiovascular and Metabolic HealthGlasgowUK
| | - Paul Welsh
- University of Glasgow, School of Cardiovascular and Metabolic HealthGlasgowUK
| | - Sachith Mettananda
- Department of Paediatrics, Faculty of MedicineUniversity of KelaniyaRagamaSri Lanka
- Colombo North Teaching HospitalRagamaSri Lanka
| | - Stephen O'Rahilly
- MRC Metabolic Diseases Unit, Wellcome‐MRC Institute of Metabolic ScienceUniversity of CambridgeCambridgeUK
- NIHR Cambridge Biomedical Research CentreCambridgeUK
| |
Collapse
|
6
|
Lokuhewage C, Pathiraja H, Madawala P, Bandara S, Mettananda S. Lysinuric protein intolerance presenting as pancytopenia and splenomegaly mimicking acute leukaemia: a case report. BMC Pediatr 2023; 23:382. [PMID: 37528333 PMCID: PMC10391768 DOI: 10.1186/s12887-023-04207-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 07/21/2023] [Indexed: 08/03/2023] Open
Abstract
BACKGROUND Lysinuric protein intolerance is a rare inherited metabolic disease due to autosomal recessive mutations of the SLC7A7 gene. The affected patients commonly present with protein-rich food intolerance, failure to thrive, hepatosplenomegaly, muscle hypotonia and lung involvement due to impaired intestinal absorption and excessive urinary excretion of dibasic amino acids. Presentation with splenomegaly and cytopenia without other features has not been reported. Here we report a Sri Lankan girl with lysinuric protein intolerance presenting with pancytopenia and splenomegaly mimicking acute leukaemia. CASE PRESENTATION Two years and six months old Sri Lankan girl presented with persistent pancytopenia following a viral illness. She was asymptomatic without vomiting, diarrhoea, abdominal pain or irritability. Physical examination revealed pallor and isolated firm splenomegaly of 2 cm. Growth parameters and other system examinations were normal. Full blood count revealed anaemia, leukopenia and thrombocytopenia. The blood picture showed a mixture of hypochromic microcytic and normochromic normocytic red cells with occasional pencil cells and macrocytes. Bone marrow examination was normal except for occasional megaloblasts; however, serum vitamin B12 and red blood cell folate were normal. The metabolic screen showed a high anion gap compensated metabolic acidosis, high lactate and ketosis. Genetic mutation analysis using whole exome sequencing revealed compound heterozygous variants of the SLC7A7 gene, confirming the diagnosis of lysinuric protein intolerance. CONCLUSION We report a child with lysinuric protein intolerance presenting with pancytopenia and splenomegaly without other disease features. This case report adds to the heterogenic presentations of lysinuric protein intolerance, which is considered a multifaceted disease.
Collapse
Affiliation(s)
| | | | | | | | - Sachith Mettananda
- Colombo North Teaching Hospital, Ragama, Sri Lanka.
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Thalagolla Road, Ragama, 11010, Sri Lanka.
| |
Collapse
|
7
|
Quah PL, Loo BKG, Mettananda S, Dassanayake S, Chia MYH, Chua TBK, Tan TSZ, Chan PC, But BWM, Fu ACC, Wong SMY, Nagano N, Morioka I, Kumar S, Nair MKC, Tan KH. 24 h Activity Guidelines in Children and Adolescents: A Prevalence Survey in Asia-Pacific Cities. Int J Environ Res Public Health 2023; 20:6403. [PMID: 37510635 PMCID: PMC10379132 DOI: 10.3390/ijerph20146403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 07/08/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023]
Abstract
This study aimed to examine the prevalence of adherence to 24 h activity guidelines in children and adolescents from Asia-Pacific cities. In 1139 children aged 5-18 years, moderate-to-vigorous physical activity (MVPA), screen viewing time (SVT), sleep duration, child weight, height, sex, and age were parent-reported. Descriptive statistics were used to assess the number of guidelines met, and prevalence of adherence to activity guidelines by city and child sex. Prevalence of meeting all three 24 h activity guidelines was low across all countries (1.8-10.3%) (p < 0.05). Children from Thiruvananthapuram, India had the highest [10.3% (95% CI: 6.0-17.0)], while those from Tokyo, Japan had the lowest prevalence [1.8% (95% CI: 0.5-7.0)] of meeting all three guidelines. The highest prevalence of meeting individual MVPA, SVT and sleep guidelines was found in India [67.5% (95% CI: 58.8-75.1)], Kelaniya, Sri Lanka [63.2% (95% CI: 58.7-67.4)] and Kowloon, Hong Kong [59.4% (95% CI: 51.1-65.3)], respectively. Overall, a higher prevalence of boys met all three guidelines, compared to girls [5.9% (95% CI: 4.1-8.1) vs. 4.7% (3.1-6.6), p = 0.32]. The prevalence of adhering to all three activity guidelines was low in all five participating cities, with a higher proportion of boys meeting all guidelines.
Collapse
Affiliation(s)
- Phaik Ling Quah
- Division of Obstetrics & Gynaecology, KK Women's and Children's Hospital, Singapore 229899, Singapore
| | - Benny Kai Guo Loo
- Sports and Exercise Medicine Service, Department of Paediatrics, KK Women's and Children's Hospital, Singapore 229899, Singapore
| | - Sachith Mettananda
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Kelaniya 11600, Sri Lanka
- Colombo North Teaching Hospital, Ragama 11010, Sri Lanka
| | - Senuri Dassanayake
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Kelaniya 11600, Sri Lanka
| | - Michael Yong Hwa Chia
- Physical Education & Sports Science, National Institute of Education, Nanyang Technological University, Singapore 639798, Singapore
| | - Terence Buan Kiong Chua
- Physical Education & Sports Science, National Institute of Education, Nanyang Technological University, Singapore 639798, Singapore
| | - Teresa Shu Zhen Tan
- Khoo Teck Puat-National University Children's Medical Institute, National University Hospital, Singapore 119074, Singapore
| | - Poh Chong Chan
- Khoo Teck Puat-National University Children's Medical Institute, National University Hospital, Singapore 119074, Singapore
| | - Betty Wai-Man But
- Department of Paediatrics, Queen Elizabeth Hospital, Kowloon, Hong Kong
| | | | | | - Nobuhiko Nagano
- Department of Pediatrics and Child Health, Nihon University School of Medicine, Tokyo 173-0023, Japan
| | - Ichiro Morioka
- Department of Pediatrics and Child Health, Nihon University School of Medicine, Tokyo 173-0023, Japan
| | - Shyamal Kumar
- NIMS-Spectrum-Child Development Research Centre, Thiruvananthapuram 695123, India
| | - Muttathu K C Nair
- NIMS-Spectrum-Child Development Research Centre, Thiruvananthapuram 695123, India
| | - Kok Hian Tan
- Department of Maternal Fetal Medicine, KK Women's and Children's Hospital, Singapore 229899, Singapore
- Duke-NUS Medical School, Singapore 169857, Singapore
| |
Collapse
|
8
|
Fejzo M, Rocha N, Cimino I, Lockhart SM, Petry C, Kay RG, Burling K, Barker P, George AL, Yasara N, Premawardhena A, Gong S, Cook E, Rainbow K, Withers DJ, Cortessis V, Mullin PM, MacGibbon KW, Jin E, Kam A, Campbell A, Polasek O, Tzoneva G, Gribble FM, Yeo G, Lam B, Saudek V, Hughes IA, Ong KK, Perry J, Sutton Cole A, Baumgarten M, Welsh P, Sattar N, Smith G, Charnock Jones DS, Coll AP, Meek CL, Mettananda S, Hayward C, Mancuso N, O'Rahilly S. Fetally-encoded GDF15 and maternal GDF15 sensitivity are major determinants of nausea and vomiting in human pregnancy. bioRxiv 2023:2023.06.02.542661. [PMID: 37398065 PMCID: PMC10312505 DOI: 10.1101/2023.06.02.542661] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
Human pregnancy is frequently accompanied by nausea and vomiting that may become severe and life-threatening, as in hyperemesis gravidarum (HG), the cause of which is unknown. Growth Differentiation Factor-15 (GDF15), a hormone known to act on the hindbrain to cause emesis, is highly expressed in the placenta and its levels in maternal blood rise rapidly in pregnancy. Variants in the maternal GDF15 gene are associated with HG. Here we report that fetal production of GDF15, and maternal sensitivity to it, both contribute substantially to the risk of HG. We found that the great majority of GDF15 in maternal circulation is derived from the feto-placental unit and that higher GDF15 levels in maternal blood are associated with vomiting and are further elevated in patients with HG. Conversely, we found that lower levels of GDF15 in the non-pregnant state predispose women to HG. A rare C211G variant in GDF15 which strongly predisposes mothers to HG, particularly when the fetus is wild-type, was found to markedly impair cellular secretion of GDF15 and associate with low circulating levels of GDF15 in the non-pregnant state. Consistent with this, two common GDF15 haplotypes which predispose to HG were associated with lower circulating levels outside pregnancy. The administration of a long-acting form of GDF15 to wild-type mice markedly reduced subsequent responses to an acute dose, establishing that desensitisation is a feature of this system. GDF15 levels are known to be highly and chronically elevated in patients with beta thalassemia. In women with this disorder, reports of symptoms of nausea or vomiting in pregnancy were strikingly diminished. Our findings support a causal role for fetal derived GDF15 in the nausea and vomiting of human pregnancy, with maternal sensitivity, at least partly determined by pre-pregnancy exposure to GDF15, being a major influence on its severity. They also suggest mechanism-based approaches to the treatment and prevention of HG.
Collapse
Affiliation(s)
- M Fejzo
- Department of Obstetrics and Gynaecology, Keck School of Medicine, University of Southern California, Los Angeles, CA
| | - N Rocha
- Medical Research Council (MRC) Metabolic Diseases Unit, Wellcome-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - I Cimino
- Medical Research Council (MRC) Metabolic Diseases Unit, Wellcome-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - S M Lockhart
- Medical Research Council (MRC) Metabolic Diseases Unit, Wellcome-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - C Petry
- Medical Research Council (MRC) Metabolic Diseases Unit, Wellcome-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - R G Kay
- Medical Research Council (MRC) Metabolic Diseases Unit, Wellcome-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK
- Peptidomics and Proteomics Core Facility, Level 4, Wellcome-MRC Institute of Metabolic Science, Cambridge University Hospitals NHS Foundation Trust, Cambridge CB2 0QQ, United Kingdom
| | - K Burling
- Medical Research Council (MRC) Metabolic Diseases Unit, Wellcome-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK
- Core Biochemical Assay Laboratory, Cambridge University Hospitals NHS Foundation Trust, Cambridge CB2 0QQ, UK
| | - P Barker
- Medical Research Council (MRC) Metabolic Diseases Unit, Wellcome-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK
- Core Biochemical Assay Laboratory, Cambridge University Hospitals NHS Foundation Trust, Cambridge CB2 0QQ, UK
| | - A L George
- Peptidomics and Proteomics Core Facility, Level 4, Wellcome-MRC Institute of Metabolic Science, Cambridge University Hospitals NHS Foundation Trust, Cambridge CB2 0QQ, United Kingdom
| | - N Yasara
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Thalagolla Road, Ragama, 11010, Sri Lanka
| | - A Premawardhena
- Adolescent and Adult Thalassaemia Care Center (University Medical Unit), North Colombo Teaching Hospital, Kadawatha, Sri Lanka
- Department of Medicine, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka
| | - S Gong
- Department of Obstetrics and Gynaecology, University of Cambridge, NIHR Cambridge Biomedical Research Centre, Cambridge, UK
- Centre for Trophoblast Research (CTR), Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
| | - E Cook
- Department of Obstetrics and Gynaecology, University of Cambridge, NIHR Cambridge Biomedical Research Centre, Cambridge, UK
| | - K Rainbow
- Medical Research Council (MRC) Metabolic Diseases Unit, Wellcome-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - D J Withers
- Medical Research Council (MRC) Metabolic Diseases Unit, Wellcome-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - V Cortessis
- Department of Obstetrics and Gynaecology, Keck School of Medicine, University of Southern California, Los Angeles, CA
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California
| | - P M Mullin
- Department of Obstetrics and Gynaecology, Keck School of Medicine, University of Southern California, Los Angeles, CA
| | - K W MacGibbon
- Hyperemesis Education and Research Foundation, Clackamas, OR
| | - E Jin
- Department of Obstetrics and Gynaecology, Keck School of Medicine, University of Southern California, Los Angeles, CA
| | - A Kam
- Department of Obstetrics and Gynaecology, Keck School of Medicine, University of Southern California, Los Angeles, CA
| | - A Campbell
- Centre for Genomic and Experimental Medicine, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - O Polasek
- Faculty of Medicine, University of Split, Split, Croatia
| | - G Tzoneva
- Regeneron Genetics Center, Tarrytown, NY, USA
| | - F M Gribble
- Medical Research Council (MRC) Metabolic Diseases Unit, Wellcome-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - Gsh Yeo
- Medical Research Council (MRC) Metabolic Diseases Unit, Wellcome-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - Byh Lam
- Medical Research Council (MRC) Metabolic Diseases Unit, Wellcome-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - V Saudek
- Medical Research Council (MRC) Metabolic Diseases Unit, Wellcome-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - I A Hughes
- Department of Paediatrics, Cambridge University Hospitals NHS Foundation Trust, University of Cambridge, Cambridge, UK
| | - K K Ong
- Department of Paediatrics, Cambridge University Hospitals NHS Foundation Trust, University of Cambridge, Cambridge, UK
- MRC Epidemiology Unit, Wellcome-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - Jrb Perry
- Medical Research Council (MRC) Metabolic Diseases Unit, Wellcome-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK
- MRC Epidemiology Unit, Wellcome-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - A Sutton Cole
- Department of Obstetrics and Gynaecology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - M Baumgarten
- Department of Obstetrics and Gynaecology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - P Welsh
- School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow, UK
| | - N Sattar
- School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow, UK
| | - Gcs Smith
- Department of Obstetrics and Gynaecology, University of Cambridge, NIHR Cambridge Biomedical Research Centre, Cambridge, UK
- Centre for Trophoblast Research (CTR), Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
| | - D S Charnock Jones
- Department of Obstetrics and Gynaecology, University of Cambridge, NIHR Cambridge Biomedical Research Centre, Cambridge, UK
- Centre for Trophoblast Research (CTR), Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
| | - A P Coll
- Medical Research Council (MRC) Metabolic Diseases Unit, Wellcome-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - C L Meek
- Medical Research Council (MRC) Metabolic Diseases Unit, Wellcome-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - S Mettananda
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Thalagolla Road, Ragama, 11010, Sri Lanka
- University Paediatrics Unit, Colombo North Teaching Hospital, Ragama, Sri Lanka
| | - C Hayward
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh EH4 2XU,16, UK
| | - N Mancuso
- Center for Genetic Epidemiology, Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California
- Department of Quantitative and Computational Biology, University of Southern California
- Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California
| | - S O'Rahilly
- Medical Research Council (MRC) Metabolic Diseases Unit, Wellcome-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK.
| |
Collapse
|
9
|
Badat M, Ejaz A, Hua P, Rice S, Zhang W, Hentges LD, Fisher CA, Denny N, Schwessinger R, Yasara N, Roy NBA, Issa F, Roy A, Telfer P, Hughes J, Mettananda S, Higgs DR, Davies JOJ. Direct correction of haemoglobin E β-thalassaemia using base editors. Nat Commun 2023; 14:2238. [PMID: 37076455 PMCID: PMC10115876 DOI: 10.1038/s41467-023-37604-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 03/23/2023] [Indexed: 04/21/2023] Open
Abstract
Haemoglobin E (HbE) β-thalassaemia causes approximately 50% of all severe thalassaemia worldwide; equating to around 30,000 births per year. HbE β-thalassaemia is due to a point mutation in codon 26 of the human HBB gene on one allele (GAG; glutamatic acid → AAG; lysine, E26K), and any mutation causing severe β-thalassaemia on the other. When inherited together in compound heterozygosity these mutations can cause a severe thalassaemic phenotype. However, if only one allele is mutated individuals are carriers for the respective mutation and have an asymptomatic phenotype (β-thalassaemia trait). Here we describe a base editing strategy which corrects the HbE mutation either to wildtype (WT) or a normal variant haemoglobin (E26G) known as Hb Aubenas and thereby recreates the asymptomatic trait phenotype. We have achieved editing efficiencies in excess of 90% in primary human CD34 + cells. We demonstrate editing of long-term repopulating haematopoietic stem cells (LT-HSCs) using serial xenotransplantation in NSG mice. We have profiled the off-target effects using a combination of circularization for in vitro reporting of cleavage effects by sequencing (CIRCLE-seq) and deep targeted capture and have developed machine-learning based methods to predict functional effects of candidate off-target mutations.
Collapse
Affiliation(s)
- Mohsin Badat
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
- Department of Clinical Haematology, Royal London Hospital, Barts Health NHS Trust, London, UK
| | - Ayesha Ejaz
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Peng Hua
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Siobhan Rice
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Weijiao Zhang
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Lance D Hentges
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
- MRC WIMM Centre for Computational Biology, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
- Oxford National Institute of Health Research Biomedical Research Centre, University of Oxford, Oxford, UK
| | - Christopher A Fisher
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Nicholas Denny
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Ron Schwessinger
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Nirmani Yasara
- Department of Paediatrics, University of Kelaniya, Kelaniya, Sri Lanka
| | - Noemi B A Roy
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Fadi Issa
- Transplantation Research and Immunology Group, Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Andi Roy
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
- Department of Paediatrics, University of Oxford, Oxford, UK
| | - Paul Telfer
- Department of Clinical Haematology, Royal London Hospital, Barts Health NHS Trust, London, UK
| | - Jim Hughes
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
- MRC WIMM Centre for Computational Biology, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | | | - Douglas R Higgs
- Laboratory of Gene Regulation, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - James O J Davies
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK.
- Department of Clinical Haematology, Royal London Hospital, Barts Health NHS Trust, London, UK.
- National Institute of Health Research Blood and Transplant Research Unit in Precision Cellular Therapeutics, Oxford, UK.
| |
Collapse
|
10
|
Samararathna R, Gunaratne AVC, Mettananda S. Knowledge and practices on childhood anaemia, thalassaemia and iron deficiency among mothers of children aged between 6 and 59 months in a suburban area of Sri Lanka. J Health Popul Nutr 2022; 41:59. [PMID: 36587235 PMCID: PMC9805672 DOI: 10.1186/s41043-022-00341-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 12/27/2022] [Indexed: 01/02/2023]
Abstract
BACKGROUND Childhood anaemia is one of the most common public health problems worldwide. Here, we aim to describe the knowledge and practices on childhood anaemia, thalassaemia and iron deficiency among mothers of children aged between 6 and 59 months in a suburban district of Sri Lanka. METHODS We performed a cross-sectional survey in the Gampaha District of Sri Lanka from December 2020 to February 2021. One well-baby clinic each from four Medical Officer of Health areas in the district was selected using stratified random sampling. Mothers of all children aged between 6 and 59 months attending well-baby clinics were recruited until the sample size was achieved. Data were collected using a self-administered questionnaire and analysed using logistic regression. RESULTS A total of 392 mothers were recruited; 53% of their children were males. Only 33% of mothers had an accurate understanding of anaemia, while 71% and 28%, respectively, could name at least one symptom and two causes of anaemia; 12% could not name a single food rich in iron. Only 13% of mothers knew that thalassaemia is a cause of anaemia, and 14% had been screened for thalassaemia. Logistic regression analysis that examined for factors associated with higher knowledge of anaemia revealed that an accurate understanding of anaemia was associated with maternal age over 30 years (p < 0.05) and maternal education level beyond grade ten (p < 0.001). In contrast, higher knowledge of symptoms of anaemia was associated with maternal employment (p < 0.01). CONCLUSIONS The knowledge of anaemia and awareness of thalassaemia among mothers was poor. Very few mothers were aware of iron-rich food and feed it to their children. Despite being located in a thalassaemia-endemic region, very few knew that thalassaemia is a cause of anaemia and have got themselves screened for thalassaemia.
Collapse
Affiliation(s)
| | | | - Sachith Mettananda
- grid.470189.3Colombo North Teaching Hospital, Ragama, Sri Lanka ,grid.45202.310000 0000 8631 5388Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Thalagolla Road, Ragama, 11010 Sri Lanka
| |
Collapse
|
11
|
Wanninayake L, de Abrew G, Logeshwaran D, Weerasinghe C, Gowinna P, Mettananda S, Premaratna R. Tender cervical lymphadenitis as a herald of multi-system inflammatory syndrome in COVID-19 infection of children and adolescents: a report of two cases. BMC Infect Dis 2022; 22:946. [PMID: 36527007 PMCID: PMC9756495 DOI: 10.1186/s12879-022-07943-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Post-COVID-19 multisystem inflammatory syndrome (MIS) has been increasingly recognized but fever with isolated tender cervical lymphadenitis as the initial presentation has been rarely reported. We present 2 female patients one a child and the other an adolescent. CASE PRESENTATION Case 1 was a 13-year-old girl who presented with tender cervical lymphadenopathy and fever 3-weeks post-COVID-19, and then developed features of MIS 5 days later. Case 2, also female, was 18 years old. She had no history of COVID-19 infection or immunization but had a serologic diagnosis of COVID-19. She similarly presented with fever and tender cervical lymphadenopathy, and then progressed rapidly to develop features of MIS. Both patients responded well to treatment with immunosuppressants and intravenous immunoglobulin. CONCLUSION Tender cervical lymphadenopathy could be the herald of multi-system inflammatory syndrome following COVID-19 infection among children and adolescents, which the clinicians must have a good suspicion about.
Collapse
Affiliation(s)
- Leonard Wanninayake
- grid.470189.3University Medical Unit, Colombo North Teaching Hospital, Ragama, Sri Lanka ,grid.8065.b0000000121828067Department of Pharmacology, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka
| | - Gayathree de Abrew
- grid.470189.3University Paediatric Unit, Colombo North Teaching Hospital, Ragama, Sri Lanka
| | - Dinusha Logeshwaran
- grid.470189.3University Medical Unit, Colombo North Teaching Hospital, Ragama, Sri Lanka
| | - Chathurika Weerasinghe
- grid.470189.3University Medical Unit, Colombo North Teaching Hospital, Ragama, Sri Lanka
| | - Piyumi Gowinna
- grid.470189.3University Medical Unit, Colombo North Teaching Hospital, Ragama, Sri Lanka
| | - Sachith Mettananda
- grid.470189.3University Paediatric Unit, Colombo North Teaching Hospital, Ragama, Sri Lanka ,grid.45202.310000 0000 8631 5388Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka
| | - Ranjan Premaratna
- grid.470189.3University Medical Unit, Colombo North Teaching Hospital, Ragama, Sri Lanka ,grid.45202.310000 0000 8631 5388Department of Medicine, Faculty of Medicine, University of Kelaniya, PO Box 6, Thalagolla Road, Ragama, Sri Lanka
| |
Collapse
|
12
|
Pathiraja H, Rasnayake D, Muthukumarana T, de Silva C, Sathkorala W, Gunaratne S, Rajindrajith S, Mettananda S. A large pericardial cystic lymphangioma presenting as acute-onset respiratory distress in a child: a case report. J Med Case Rep 2022; 16:397. [PMID: 36316785 PMCID: PMC9623980 DOI: 10.1186/s13256-022-03576-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 08/18/2022] [Indexed: 11/05/2022] Open
Abstract
Background Lymphangiomas are rare benign malformations of the lymphatics that occur due to blockage of the lymphatic system during fetal development. They commonly occur in the neck and axilla, while involvement of the pericardium is rare. We report herein the case of a 16-month-old Sri Lankan child with a large pericardial cystic lymphangioma presenting with sudden-onset shortness of breath. Case presentation A 16-month-old Sri Lankan boy presented with sudden-onset dyspnea for 1-day duration following a febrile illness that lasted 2 days. On examination, he was afebrile and had subcostal, intercostal, and suprasternal recessions, with a respiratory rate of 50 breaths per minute. He had a loud expiratory grunt. The chest expansion was reduced on the right side, which was dull to percussion. Auscultation revealed a marked reduction of air entry over the right lower and mid zones. Chest X-ray showed a well-demarcated opacity involving the lower and mid zones of the right hemithorax associated with a tracheal shift to the opposite side. Ultrasound scan of the chest revealed fluid-filled right hemithorax suggesting a septate pleural effusion. A contrast-enhanced computed tomography scan of the thorax showed a large multiloculated extrapulmonary cystic lesion involving the right hemithorax with a mediastinal shift towards the left side associated with displacement of the right-side mediastinal structures. He underwent mini-thoracotomy and surgical excision of the cyst. A large cyst originating from the pericardium was observed and excised during surgery. Histological examination revealed a lesion composed of cysts devoid of a lining epithelium but separated by connective tissue, mature adipose tissue, and lymphoid aggregates. The child showed complete recovery postoperatively with full expansion of the ipsilateral lung. Conclusion We report the case of a patient with cystic lymphangioma who was perfectly well and asymptomatic until 16 months of age. This case report presents the very rare occurrence of a large cystic lymphangioma originating from the pericardium. It highlights the importance of considering rare possibilities and performing prompt imaging in situations of diagnostic uncertainty to arrive at an accurate diagnosis that can be lifesaving.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Shaman Rajindrajith
- Lady Ridgeway Children’s Hospital, Colombo, Sri Lanka ,grid.8065.b0000000121828067Department of Paediatrics, University of Colombo, Colombo, Sri Lanka
| | - Sachith Mettananda
- grid.470189.3Colombo North Teaching Hospital, Ragama, Sri Lanka ,grid.45202.310000 0000 8631 5388Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Thalagolla Road, Ragama, 11010 Sri Lanka
| |
Collapse
|
13
|
Suriapperuma T, Randeny S, Mettananda S. Kagami-Ogata syndrome: a case report. J Med Case Rep 2022; 16:284. [PMID: 35864517 PMCID: PMC9306061 DOI: 10.1186/s13256-022-03512-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 06/26/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Kagami-Ogata syndrome is a rare genetic imprinting disorder involving the 14q32.2 genomic location of chromosome 14. The estimated incidence is less than 1 per 1 million. Here we report a male neonate with Kagami-Ogata syndrome presenting with severe respiratory distress requiring mechanical ventilation since birth. CASE PRESENTATION A Sri Lankan male neonate born at term via caesarean section to a mother with type 1 diabetes mellitus and hypothyroidism developed respiratory distress immediately after birth. On examination, the baby had facial dysmorphism with a hirsute forehead, full cheeks, flat nasal bridge, elongated protruding philtrum, and micrognathia. His chest was small and bell shaped, and he had severe intercostal and subcostal recessions. His abdominal wall was lax and thin, with evidence of divarication of the recti. Bowel peristalsis was easily visible through the abdominal wall. The chest x-ray showed narrowing of the rib cage with crowding of the ribs in a "coat-hanger" appearance. The coat-hanger angle was 32°, and the mid-to-widest thoracic diameter was 68%. On the basis of facial dysmorphism, chest and anterior abdominal wall abnormalities, coat-hanger appearance of the rib cage, increased coat-hanger angle, and reduced mid-to-widest thoracic diameter, a clinical diagnosis of Kagami-Ogata syndrome was made. Owing to severe respiratory distress, the baby required intubation and ventilation immediately after birth. He was ventilator-dependent for 3 weeks; however, he was successfully weaned off the ventilator on day 22 after several failed extubation attempts. At 3-month follow-up, he had generalized hypotonia and mild global developmental delay. His developmental age corresponded to 2 months. CONCLUSIONS We report a patient with Kagami-Ogata syndrome presenting with respiratory distress immediately after birth. This case report highlights the importance of being aware of this rare condition, which could present as severe respiratory distress in term and preterm newborns. A positive diagnosis could avoid unnecessary treatment and aid in accurate prognostication.
Collapse
Affiliation(s)
- Tharindi Suriapperuma
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Colombo, Sri Lanka. .,Colombo North Teaching Hospital, Ragama, Sri Lanka.
| | - Shobhavi Randeny
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Colombo, Sri Lanka.,Colombo North Teaching Hospital, Ragama, Sri Lanka
| | - Sachith Mettananda
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Colombo, Sri Lanka. .,Colombo North Teaching Hospital, Ragama, Sri Lanka.
| |
Collapse
|
14
|
Rathnasiri A, Rathnayaka H, Yasara N, Mettananda S. Electronic screen device usage and screen time among preschool-attending children in a suburban area of Sri Lanka. BMC Pediatr 2022; 22:390. [PMID: 35787276 PMCID: PMC9251924 DOI: 10.1186/s12887-022-03452-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 06/24/2022] [Indexed: 11/26/2022] Open
Abstract
Background Excessive use of screen devices and screen time are increasing health problems in children. We aim to describe the electronic screen device usage and determine the factors associated with their use among preschool-attending children in a suburban population in Sri Lanka. Methods A cross-sectional study was conducted in a suburban Medical Officer of Health area of Sri Lanka from January to March 2020. All children aged between 36–59 months attending ten randomly selected preschools were recruited. Data were collected using a parent-administered questionnaire and analysed using binary logistic regression in SPSS. The prevalence of electronic device usage, the average time spent on each device, and factors associated with individual device usage were analysed. Results A total of 340 children (Male-48%; mean age-50.1 ± 6.9 months) were recruited. Electronic devices were used by 96% of children. The most common devices were the television (87%) and the smartphone (63%). Of the children who used electronic devices, 60% exceeded the recommended screen time limit of one hour per day, 21% used devices for more than two hours per day, and 51% commenced using devices by two years of age. The higher education level of the father was independently associated with the use of smartphones and laptops and daily screen time of more than one hour (p < 0.05 for all). Male sex and being the only child were significantly associated with the use of smartphones, whereas maternal employment was associated with the use of laptops (p < 0.05 for all). Conclusions Electronic screen devices were used by 96% of preschool-attending children, and over 60% used them for more than the recommended daily upper limit of one hour. Higher paternal education, maternal employment and being the only child were significantly associated with electronic screen device use.
Collapse
Affiliation(s)
- Asanka Rathnasiri
- University Paediatrics Unit, Colombo North Teaching Hospital, Ragama, Sri Lanka
| | - Harsha Rathnayaka
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Thalagolla Road, Ragama, 11010, Sri Lanka
| | - Nirmani Yasara
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Thalagolla Road, Ragama, 11010, Sri Lanka
| | - Sachith Mettananda
- University Paediatrics Unit, Colombo North Teaching Hospital, Ragama, Sri Lanka. .,Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Thalagolla Road, Ragama, 11010, Sri Lanka.
| |
Collapse
|
15
|
Premawardhena AP, Ediriweera DS, Sabouhanian A, Allen A, Rees D, de Silva S, Perera W, Katugaha N, Arambepola M, Yamashita RC, Mettananda S, Jiffry N, Mehta V, Cader R, Bandara D, St Pierre T, Muraca G, Fisher C, Kirubarajan A, Khan S, Allen S, Lamabadusuriya SP, Weatherall DJ, Olivieri NF. Survival and complications in patients with haemoglobin E thalassaemia in Sri Lanka: a prospective, longitudinal cohort study. Lancet Glob Health 2022; 10:e134-e141. [PMID: 34843671 PMCID: PMC8672061 DOI: 10.1016/s2214-109x(21)00446-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 09/11/2021] [Accepted: 09/15/2021] [Indexed: 01/19/2023]
Abstract
BACKGROUND Worldwide, haemoglobin E β-thalassaemia is the most common genotype of severe β-thalassaemia. The paucity of long-term data for this form of thalassaemia makes evidence-based management challenging. We did a long-term observational study to define factors associated with survival and complications in patients with haemoglobin E thalassaemia. METHODS In this prospective, longitudinal cohort study, we included all patients with haemoglobin E thalassaemia who attended the National Thalassaemia Centre in Kurunegala, Sri Lanka, between Jan 1, 1997, and Dec 31, 2001. Patients were assessed up to three times a year. Approaches to blood transfusions, splenectomy, and chelation therapy shifted during this period. Survival rates between groups were evaluated using Kaplan-Meier survival function estimate curves and Cox proportional hazards models were used to identify risk factors for mortality. FINDINGS 109 patients (54 [50%] male; 55 [50%] female) were recruited and followed up for a median of 18 years (IQR 14-20). Median age at recruitment was 13 years (range 8-21). 32 (29%) patients died during follow-up. Median survival in all patients was 49 years (95% CI 45-not reached). Median survival was worse among male patients (hazard ratio [HR] 2·51, 95% CI 1·16-5·43), patients with a history of serious infections (adjusted HR 8·49, 2·90-24·84), and those with higher estimated body iron burdens as estimated by serum ferritin concentration (adjusted HR 1·03, 1·01-1·06 per 100 units). Splenectomy, while not associated with statistically significant increases in the risks of death or serious infections, ultimately did not eliminate a requirement for scheduled transfusions in 42 (58%) of 73 patients. Haemoglobin concentration less than or equal to 4·5 g/dL (vs concentration >4·5 g/dL), serum ferritin concentration more than 1300 μg/L (vs concentration ≤1300 μg/L), and liver iron concentration more than 5 mg/g dry weight of liver (vs concentration ≤5 mg/g) were associated with poorer survival. INTERPRETATION Patients with haemoglobin E thalassaemia often had complications and shortened survival compared with that reported in high-resource countries for thalassaemia major and for thalassaemia intermedia not involving an allele for haemoglobin E. Approaches to management in this disorder remain uncertain and prospective studies should evaluate if altered transfusion regimens, with improved control of body iron, can improve survival. FUNDING Wellcome Trust, Medical Research Council, US March of Dimes, Anthony Cerami and Ann Dunne Foundation for World Health, and Hemoglobal.
Collapse
Affiliation(s)
| | | | | | - Angela Allen
- Department of Molecular Haematology, MRC Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, Headington, Oxford, UK; Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - David Rees
- Department of Paediatric Haematology, King's College London, London, UK
| | | | | | | | | | - Robert C Yamashita
- Department of Hematology, University of California, San Francisco, CA, USA; Department of Liberal Studies, California State University, San Marcos, CA, USA
| | - Sachith Mettananda
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Sri Lanka
| | - Nilam Jiffry
- Sirimavo Bandaranayake Specialized Children's Hospital, Peradeniya, Sri Lanka
| | | | - Refai Cader
- Policy Analysis and Development Ministry of Health Sri Lanka, Colombo, Sri Lanka
| | | | - Timothy St Pierre
- Department of Physics, School of Physics, Mathematics, and Computing, University of Western Australia, Crawley, WA, Australia
| | - Giulia Muraca
- Clinical Epidemiology Unit, Department of Medicine, Solna, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden
| | - Christopher Fisher
- Department of Molecular Haematology, MRC Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, Headington, Oxford, UK
| | | | - Shawn Khan
- Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Stephen Allen
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | | | - David J Weatherall
- Department of Molecular Haematology, MRC Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, Headington, Oxford, UK
| | - Nancy F Olivieri
- Pediatrics, Medicine, and Public Health Sciences, University of Toronto, Toronto, ON, Canada.
| |
Collapse
|
16
|
Mehta V, Kirubarajan A, Sabouhanian A, Jayawardena SM, Chandrakumaran P, Thangavelu N, Cader R, Mettananda S, Bandara D, Khan S, Weatherall DJ, Allen A, Premawardhena AP, Olivieri NF. Leg Ulcers: A Report in Patients with Hemoglobin E Beta Thalassemia and Review of the Literature in Severe Beta Thalassemia. Acta Haematol 2021; 145:334-343. [PMID: 34753145 DOI: 10.1159/000520731] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 10/05/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND Leg ulcers are a frequent complication in patients with the inherited hemoglobin disorders. In thalassemia, the literature is limited, and factors associated with the development of leg ulcers in hemoglobin E (HbE) beta thalassemia, the most common form of severe beta-thalassemia worldwide, have not previously been reported. METHODS We reviewed all available medical records of patients with HbE beta thalassemia to document the onset of leg ulcers at the 2 largest treatment centers in Sri Lanka. We reviewed the literature to identify studies reporting outcomes of interventions for ulcers in severe thalassemia. RESULTS Of a total of 255 actively registered patients with HbE thalassemia in the 2 centers, 196 patient charts were evaluable. A leg ulcer with a documented date of onset was recorded in 45 (22%) of 196 evaluable patients, aged (mean ± SEM) 22.2 ± 1.4 years. Most had been irregularly transfused; steady-state hemoglobin was 6.4 ± 0.2 g/dL. Treatment achieving healing in 17 patients included transfusions, antibiotics, oral zinc, wound toileting, and skin grafting. CONCLUSION Leg ulcers may be more common in HbE beta thalassemia than in other forms of thalassemia. A systematic approach to treatment will be needed to document the prevalence and factors placing such patients at risk for leg ulcers. Controlled trials to evaluate the optimal treatment of this common complication are indicated.
Collapse
Affiliation(s)
- Vikita Mehta
- Arts and Science, McMaster University, Hamilton, Ontario, Canada
| | | | - Amir Sabouhanian
- Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | | | | | - Nila Thangavelu
- Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Refai Cader
- Policy Analysis and Development, Ministry of Health, Colombo, Sri Lanka
| | - Sachith Mettananda
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Kelaniya, Sri Lanka
| | - Dayananda Bandara
- National Thalassaemia Centre, Kurunegala, Sri Lanka
- Teaching Hospital Kurunegala, Kurunegala, Sri Lanka
| | - Shawn Khan
- Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - David J Weatherall
- MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
| | - Angela Allen
- MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
| | | | - Nancy F Olivieri
- Pediatrics, Medicine and Public Health Sciences, University of Toronto, Toronto, Ontario, Canada
| |
Collapse
|
17
|
Rathnasiri A, Senarathne U, Arunath V, Hoole T, Kumarasiri I, Muthukumarana O, Jasinge E, Mettananda S. A rare co-occurrence of duchenne muscular dystrophy, congenital adrenal hypoplasia and glycerol kinase deficiency due to Xp21 contiguous gene deletion syndrome: case report. BMC Endocr Disord 2021; 21:214. [PMID: 34689766 PMCID: PMC8543963 DOI: 10.1186/s12902-021-00876-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 10/15/2021] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Contiguous gene deletion syndromes are rare genomic disorders caused by deletion of large segments of DNA resulting in co-occurrence of apparently unrelated multiple clinical phenotypes. We report a boy with contiguous gene deletion involving Xp21 genomic location. CASE PRESENTATION A Sri Lankan boy with developmental delay and failure to thrive first presented at three years of age with hypovolaemia, hyperpigmentation and drowsiness. Investigations done at that time revealed hypoglycaemia, hyponatraemia, hyperkalaemia, low cortisol, low aldosterone, high ACTH and low 17-hydroxyprogesterone. He was diagnosed to have primary adrenal insufficiency. During follow-up at five years, he was noted to have progressive difficulty in walking, waddling gait, hypotonia, calf hypertrophy and positive Gower's sign. His creatine kinase was very high, and the electromyogram showed myopathy. Genetic analysis revealed hemizygous deletion involving the final 35 exons of the dystrophin gene confirming the diagnosis of Duchenne muscular dystrophy. Further investigations revealed pseudohypertriglyceridemia, large glycerol peak on urine organic acid analysis and hemizygous deletion of the glycerol kinase gene confirming glycerol kinase deficiency. Based on the presence of Duchenne muscular dystrophy, glycerol kinase deficiency and probable congenital adrenal hypoplasia along with genetic confirmation of deletions involving dystrophin and glycerol kinase genes, the diagnosis of Xp21 contiguous gene deletion syndrome was made. CONCLUSIONS We report a child with contiguous gene deletion syndrome who was initially diagnosed as having isolated primary adrenal insufficiency probably due to congenital adrenal hypoplasia. Later he was confirmed to have Duchenne muscular dystrophy and glycerol kinase deficiency, as well. This case report highlights the importance of pre-emptive evaluation and identification of genetic defects when patients present with seemingly unrelated diseases that could aid in accurate diagnoses of contiguous gene deletion syndromes.
Collapse
Affiliation(s)
| | - Udara Senarathne
- Department of Biochemistry, Faculty of Medical Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka
| | | | | | | | | | - Eresha Jasinge
- Lady Ridgeway Children's Hospital, Colombo 08, Colombo, Sri Lanka
| | - Sachith Mettananda
- Colombo North Teaching Hospital, Ragama, Sri Lanka.
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Thalagolla Raod, Ragama, Sri Lanka.
| |
Collapse
|
18
|
Mettananda S. Genetic and Epigenetic Therapies for β-Thalassaemia by Altering the Expression of α-Globin Gene. Front Genome Ed 2021; 3:752278. [PMID: 34713267 PMCID: PMC8525347 DOI: 10.3389/fgeed.2021.752278] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 09/20/2021] [Indexed: 01/19/2023] Open
Abstract
β-Thalassaemia is caused by over 300 mutations in and around the β-globin gene that lead to impaired synthesis of β-globin. The expression of α-globin continues normally, resulting in an excess of α-globin chains within red blood cells and their precursors. These unpaired α-globin chains form unstable α-hemichromes that trigger cascades of events to generate reactive oxygen species, leading to ineffective erythropoiesis and haemolysis in patients with β-thalassaemia. The clinical genetic data reported over several decades have demonstrated how the coinheritance of α-thalassaemia ameliorates the disease phenotype of β-thalassaemia. Thus, it is evident that down-regulation of the α-globin gene expression in patients with β-thalassaemia could ameliorate or even cure β-thalassaemia. Over the last few years, significant progress has been made in utilising this pathway to devise a cure for β-thalassaemia. Most research has been done to alter the epigenetic landscape of the α-globin locus or the well-characterised distant enhancers of α-globin. In vitro, pre-clinical studies on primary human erythroid cells have unveiled inhibition of histone lysine demethylation and histone deacetylation as potential targets to achieve selective downregulation of α-globin through epigenetic drug targeting. CRISPR based genome editing has been successfully used in vitro to mutate α-globin genes or enhancers of α-goblin to achieve clinically significant knockdowns of α-globin to the levels beneficial for patients with β-thalassaemia. This review summarises the current knowledge on the regulation of human α-globin genes and the clinical genetic data supporting the pathway of targeting α-globin as a treatment for β-thalassaemia. It also presents the progress of epigenetic drug and genome editing approaches currently in development to treat β-thalassaemia.
Collapse
Affiliation(s)
- Sachith Mettananda
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka
- University Paediatrics Unit, Colombo North Teaching Hospital, Ragama, Sri Lanka
| |
Collapse
|
19
|
Allen A, Perera S, Mettananda S, Rodrigo R, Perera L, Darshana T, Moggach F, Jackson Crawford A, Heirene L, Fisher C, Olivieri N, Rees D, Premawardhena A, Allen S. Oxidative status in the β-thalassemia syndromes in Sri Lanka; a cross-sectional survey. Free Radic Biol Med 2021; 166:337-347. [PMID: 33677065 DOI: 10.1016/j.freeradbiomed.2021.02.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 02/17/2021] [Accepted: 02/21/2021] [Indexed: 01/10/2023]
Abstract
In the β-thalassemias, oxidative stress, resulting from chronic hemolysis, globin chain imbalance, iron overload and depleted antioxidant defences, likely contributes to cell death, organ damage, anemia, hypoxia and inflammation. We assessed variations in these parameters in β-thalassemia syndromes in Sri Lanka. Between November 2017 and June 2018, we assessed children and adults attending two thalassemia centres in Sri Lanka: 59 patients with HbE β-thalassemia, 50 β-thalassemia major, 40 β-thalassemia intermedia and 13 HbS β-thalassemia. Median age was 26.0 years (IQR 15.3-38.8), 101 (62.3%) were female and 152 (93.8%) of Sinhalese ethnicity. Methemoglobin, plasma hemoglobin, heme and ferritin were measured as sources of oxidants; plasma total antioxidant capacity, haptoglobin, hemopexin and vitamins C and E assessed antioxidant status; plasma thiobarbituric acid reactive substances and 8-hydroxy-2'-deoxyguanosine assessed oxidative damage; hemoglobin, plasma erythropoietin and transferrin receptor assessed anemia and hypoxia and plasma interleukin-6 and C-reactive protein assessed inflammation. Fruit and vegetable intake was determined by dietary recall. Physical fitness was investigated using the 6-min walk test and measurement of handgrip strength. Oxidant sources were frequently increased and antioxidants depleted, with consequent oxidative damage, anemia, hypoxia and inflammation. Biomarkers were generally most abnormal in HbE β-thalassemia and least abnormal in β-thalassemia intermedia but also varied markedly between individuals with the same thalassemia syndrome. Oxidative stress and damage were also more severe in splenectomized patients and/or those receiving iron chelation therapy. Less than 15% of patients ate fresh fruits or raw vegetables frequently, and plasma vitamins C and E were deficient in 132/160 (82.5%) and 140/160 (87.5%) patients respectively. Overall, physical fitness was poor in all syndromes and was likely due to anemic hypoxia. Studies of antioxidant supplements to improve outcomes in patients with thalassemia should consider individual patient variation in oxidative status both between and within the thalassemia syndromes.
Collapse
Affiliation(s)
- Angela Allen
- Department of Molecular Haematology, MRC Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, Headington, Oxford, UK; Department of Clinical Sciences, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, UK.
| | - Shiromi Perera
- Department of Biochemistry and Clinical Chemistry, Faculty of Medicine, University of Kelaniya, Sri Lanka
| | - Sachith Mettananda
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Sri Lanka
| | - Rexan Rodrigo
- Thalassemia Care Unit, North Colombo Teaching Hospital, Ragama, Sri Lanka
| | - Lakshman Perera
- Department of Medicine, Faculty of Medicine, University of Kelaniya, Sri Lanka
| | - Thamal Darshana
- Department of Medical Laboratory Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka
| | - Fiona Moggach
- Department of Clinical Biochemistry, Macewen Building, Glasgow Royal Infirmary, Castle Street, Glasgow, UK
| | - Anthony Jackson Crawford
- Department of Clinical Chemistry, Aneurin Bevan University Health Board, Grange University Hospital, Llanyravon, Cwmbran, Gwent, UK
| | - Lesley Heirene
- Department of Clinical Chemistry, Aneurin Bevan University Health Board, Grange University Hospital, Llanyravon, Cwmbran, Gwent, UK
| | - Christopher Fisher
- Department of Molecular Haematology, MRC Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, Headington, Oxford, UK
| | - Nancy Olivieri
- Professor of Pediatrics, Medicine and Public Health Sciences, University of Toronto, Toronto, Canada
| | - David Rees
- Department of Paediatric Haematology, King's College Hospital, London, UK
| | - Anuja Premawardhena
- Thalassemia Care Unit, North Colombo Teaching Hospital, Ragama, Sri Lanka; Department of Medicine, Faculty of Medicine, University of Kelaniya, Sri Lanka
| | - Stephen Allen
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, UK
| |
Collapse
|
20
|
Yasara N, Premawardhena A, Mettananda S. A comprehensive review of hydroxyurea for β-haemoglobinopathies: the role revisited during COVID-19 pandemic. Orphanet J Rare Dis 2021; 16:114. [PMID: 33648529 PMCID: PMC7919989 DOI: 10.1186/s13023-021-01757-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 02/18/2021] [Indexed: 02/07/2023] Open
Abstract
Background Hydroxyurea is one of the earliest drugs that showed promise in the management of haemoglobinopathies that include β-thalassaemia and sickle cell disease. Despite this, many aspects of hydroxyurea are either unknown or understudied; specifically, its usefulness in β-thalassaemia major and haemoglobin E β-thalassaemia is unclear. However, during COVID-19 pandemic, it has become a valuable adjunct to transfusion therapy in patients with β-haemoglobinopathies. In this review, we aim to explore the available in vitro and in vivo mechanistic data and the clinical utility of hydroxyurea in β-haemoglobinopathies with a special emphasis on its usefulness during the COVID-19 pandemic. Main body Hydroxyurea is an S-phase-specific drug that reversibly inhibits ribonucleoside diphosphate reductase enzyme which catalyses an essential step in the DNA biosynthesis. In human erythroid cells, it induces the expression of γ-globin, a fetal globin gene that is suppressed after birth. Through several molecular pathways described in this review, hydroxyurea exerts many favourable effects on the haemoglobin content, red blood cell indices, ineffective erythropoiesis, and blood rheology in patients with β-haemoglobinopathies. Currently, it is recommended for sickle cell disease and non-transfusion dependent β-thalassaemia. A number of clinical trials are ongoing to evaluate its usefulness in transfusion dependent β-thalassaemia. During the COVID-19 pandemic, it was widely used as an adjunct to transfusion therapy due to limitations in the availability of blood and logistical disturbances. Thus, it has become clear that hydroxyurea could play a remarkable role in reducing transfusion requirements of patients with haemoglobinopathies, especially when donor blood is a limited resource. Conclusion Hydroxyurea is a well-tolerated oral drug which has been in use for many decades. Through its actions of reversible inhibition of ribonucleoside diphosphate reductase enzyme and fetal haemoglobin induction, it exerts many favourable effects on patients with β-haemoglobinopathies. It is currently approved for the treatment of sickle cell disease and non-transfusion dependent β-thalassaemia. Also, there are various observations to suggest that hydroxyurea is an important adjunct in the treatment of transfusion dependent β-thalassaemia which should be confirmed by randomised clinical trials.
Collapse
Affiliation(s)
- Nirmani Yasara
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Thalagolla Road, Ragama, 11010, Sri Lanka
| | - Anuja Premawardhena
- Department of Medicine, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka.,Colombo North Teaching Hospital, Ragama, Sri Lanka
| | - Sachith Mettananda
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Thalagolla Road, Ragama, 11010, Sri Lanka. .,Colombo North Teaching Hospital, Ragama, Sri Lanka.
| |
Collapse
|
21
|
Yasara N, Wickramarathne N, Mettananda C, Manamperi A, Premawardhena A, Mettananda S. Efficacy and safety of oral hydroxyurea in transfusion-dependent β-thalassaemia: a protocol for randomised double-blind controlled clinical trial. BMJ Open 2020; 10:e041958. [PMID: 33109679 PMCID: PMC7592299 DOI: 10.1136/bmjopen-2020-041958] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
INTRODUCTION Despite being one of the first diseases to be genetically characterised, β-thalassaemia remains a disorder without a cure in a majority of patients. Most patients with β-thalassaemia receive only supportive treatment and therefore have a poor quality of life and shorter life spans. Hydroxyurea, which has shown to induce fetal haemoglobin synthesis in human erythroid cells, is currently recommended for the treatment of sickle cell disease. However, its clinical usefulness in transfusion-dependent β-thalassaemia is unclear. Here, we present a protocol for a randomised double-blind controlled clinical trial to evaluate the efficacy and safety of oral hydroxyurea in transfusion-dependent β-thalassaemia. METHODS AND ANALYSIS This single-centre randomised double-blind placebo-controlled clinical trial is conducted at the Thalassaemia Centre of Colombo North Teaching Hospital, Ragama, Sri Lanka. Adult and adolescent patients with haematologically and genetically confirmed transfusion-dependent β-thalassaemia are enrolled and randomised into the intervention or control group. The intervention group receives oral hydroxyurea 10-20 mg/kg daily for 6 months, while the control group receives a placebo which is identical in size, shape and colour to hydroxyurea without its active ingredient. Transfused blood volume, pretransfusion haemoglobin level, fetal haemoglobin percentage and adverse effects of treatment are monitored during treatment and 6 months post-treatment. Cessation or reduction of blood transfusions during the treatment period will be the primary outcome measure. The statistical analysis will be based on intention to treat. ETHICS AND DISSEMINATION Ethical approval has been obtained from the Ethics Committee of Faculty of Medicine, University of Kelaniya (P/116/05/2018) and the trial is approved by the National Medicinal Regulatory Authority of Sri Lanka. Results of the trial will be disseminated in scientific publications in reputed journals. TRIAL REGISTRATION NUMBER SLCTR/2018/024; Pre-results.
Collapse
Affiliation(s)
- Nirmani Yasara
- Department of Paediatrics, University of Kelaniya, Ragama, Sri Lanka
| | | | | | - Aresha Manamperi
- Molecular Medicine Unit, University of Kelaniya, Ragama, Sri Lanka
| | - Anuja Premawardhena
- Department of Medicine, University of Kelaniya, Ragama, Sri Lanka
- Colombo North Teaching Hospital, Ragama, Sri Lanka
| | - Sachith Mettananda
- Department of Paediatrics, University of Kelaniya, Ragama, Sri Lanka
- Colombo North Teaching Hospital, Ragama, Sri Lanka
| |
Collapse
|
22
|
Athapathu AS, Arunath V, Aruppala AA, Hoole TJ, Suntharesan K, Mettananda S. Delayed-onset sinus node dysfunction in a child victim of Russell's viper bite. Asian Cardiovasc Thorac Ann 2020; 28:213-215. [PMID: 32276541 DOI: 10.1177/0218492320919636] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2023]
Abstract
Cardiac complications following envenomation by Russell's viper venom are uncommon. We describe a 14-year-old girl who developed delayed-onset sinus node dysfunction. She presented with mucosal bleeding, ptosis, and muscle weakness. Her 20-min whole blood clotting time and international normalized ratio were prolonged. The initial electrocardiogram showed sinus tachycardia. Her systemic manifestations responded to antivenom serum. After 24 h, she developed bradycardia and electrocardiography showed sinus node dysfunction with sinus arrest and an atrial escape rhythm. This case shows that arrhythmias can have a delayed onset even after resolution of other systemic manifestations, and even after treatment with antivenom serum.
Collapse
Affiliation(s)
| | - Visvalingam Arunath
- University Paediatrics Unit, Colombo North Teaching Hospital, Ragama, Sri Lanka
| | | | | | | | - Sachith Mettananda
- University Paediatrics Unit, Colombo North Teaching Hospital, Ragama, Sri Lanka
| |
Collapse
|
23
|
Mettananda S, Paranamana S, Fernando R, Suranjan M, Rodrigo R, Perera L, Vipulaguna T, Fernando P, Fernando M, Dayanath BKTP, Costa Y, Premawardhena A. Microcytic anemia in children: parallel screening for iron deficiency and thalassemia provides a useful opportunity for thalassemia prevention in low- and middle-income countries. Pediatr Hematol Oncol 2020; 37:326-336. [PMID: 32072846 DOI: 10.1080/08880018.2020.1725200] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Microcytic anemia in children is commonly attributed to iron deficiency without attempting to find the cause. Inadequate investigations to exclude hemoglobinopathies lead to missed opportunities for identification of thalassemia carriers. Here we aim to describe the relative contribution of iron deficiency and thalassemia to microcytic anemia in children. This hospital-based prospective study was conducted at the Colombo North Teaching Hospital, Ragama, Sri Lanka. All newly diagnosed patients with microcytic anemia were recruited and data were collected using an interviewer-administered questionnaire. Full blood count, blood film, serum ferritin, c-reactive protein, quantification of hemoglobin sub-types and α-globin genotype were performed using 4 ml of venous blood. A total of 104 children (Male- 60.5%) were recruited. Iron deficiency was the cause for anemia in 49% whilst 16% and 10% had α- and β-thalassemia trait respectively. Seven (6.7%) children had co-existing iron deficiency and thalassemia trait while two coinherited α- and β-thalassemia trait. Children with β-thalassemia trait had significantly higher red cell count and lower mean corpuscular volume compared to children with iron deficiency. However, none of the red cell parameters were significantly different between children with α-thalassemia trait and iron deficiency. Iron deficiency contributes only to half of children with microcytic anemia; one-fourth had thalassemia trait. Co-existence of iron deficiency and thalassemia trait or co-inheritance of α- and β-thalassemia trait were found in 9%. Parallel investigation of children with microcytic anemia to diagnose iron deficiency and thalassemia provides an opportunity to identify thalassemia carriers which is beneficial for thalassemia prevention.
Collapse
Affiliation(s)
- Sachith Mettananda
- Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka.,Colombo North Teaching Hospital, Ragama, Sri Lanka
| | | | | | - Marius Suranjan
- Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka
| | - Rexan Rodrigo
- Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka
| | - Lakshman Perera
- Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka
| | | | | | | | | | | | - Anuja Premawardhena
- Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka.,Colombo North Teaching Hospital, Ragama, Sri Lanka
| |
Collapse
|
24
|
Mettananda S, Peiris R, Pathiraja H, Chandradasa M, Bandara D, de Silva U, Mettananda C, Premawardhena A. Psychological morbidity among children with transfusion dependent β-thalassaemia and their parents in Sri Lanka. PLoS One 2020; 15:e0228733. [PMID: 32045443 PMCID: PMC7012414 DOI: 10.1371/journal.pone.0228733] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Accepted: 01/21/2020] [Indexed: 01/21/2023] Open
Abstract
Background Thalassaemia is a chronic disease which requires lifelong treatment in a majority. Despite recent advances in the medical care, minimal attempts are made to improve psychological health in these patients. In this study, we aim to describe the psychological morbidity in patients with transfusion dependent β-thalassaemia and their mothers in Sri Lanka. Methods This case control study was conducted in the three largest thalassaemia centres of Sri Lanka. All patients with transfusion dependent β-thalassaemia aged 4–18 years were recruited as cases whilst a randomly selected group of children without chronic diseases were recruited as controls. Psychological morbidity of children was assessed using the Strengths and Difficulties Questionnaire and depressive symptoms of mothers was assessed by the Centre for Epidemiological Studies Depression Scale. Results 288 transfusion dependent β-thalassaemia patients and equal number of controls were recruited. Abnormal emotional, conduct, hyperactivity and peer relationship symptom scores were reported by 18%, 17%, 9% and 14% of patients with thalassaemia respectively. Prevalences of abnormal psychological symptom scores in all domains were significantly higher among patients compared to controls. Abnormal conduct symptoms were significantly more prevalent among patients with HbE β-thalassaemia and those with suboptimal pretransfusion haemoglobin levels, lower transfusion volumes, hypothyroidism and undernutrition. Short stature was associated with abnormal emotional and hyperactivity scores. Depressive symptoms were significantly higher among mothers of patients with thalassaemia. Higher depressive symptom scores in mothers were significantly associated with abnormal emotional, conduct and peer relationship symptom scores in children. Conclusions A higher proportion of patients with transfusion dependent β-thalassaemia had abnormal psychological symptom scores. Abnormal conduct symptoms were more prevalent among patients with HbE β-thalassaemia, those who were inadequately transfused and having hypothyroidism and undernutrition. Mothers of the children with transfusion dependent β-thalassaemia had significantly higher depressive symptoms which were significantly associated with psychological symptoms among children.
Collapse
Affiliation(s)
- Sachith Mettananda
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka.,Colombo North Teaching Hospital, Ragama, Sri Lanka
| | - Ravindu Peiris
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka
| | - Hashan Pathiraja
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka
| | - Miyuru Chandradasa
- Colombo North Teaching Hospital, Ragama, Sri Lanka.,Department of Psychiatry, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka
| | | | | | - Chamila Mettananda
- Department of Pharmacology, Faculty of Medicine, University of Kelaniya, Kelaniya, Sri Lanka
| | - Anuja Premawardhena
- Colombo North Teaching Hospital, Ragama, Sri Lanka.,Department of Medicine, Faculty of Medicine, University of Kelaniya, Kelaniya, Sri Lanka
| |
Collapse
|
25
|
Athapathu AS, Bandara ERS, Aruppala AAHS, Chandrapala KMAU, Mettananda S. A child with Gradenigo syndrome presenting with meningism: a case report. BMC Pediatr 2019; 19:350. [PMID: 31607266 PMCID: PMC6790238 DOI: 10.1186/s12887-019-1754-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 09/27/2019] [Indexed: 11/23/2022] Open
Abstract
Background The symptoms of meningitis which include fever, headache, photophobia and irritability along with abducens nerve palsy pose a diagnostic dilemma requiring urgent attention. Here we report how such a dilemma was methodically and sequentially resolved using anatomical knowledge supported by neuroimaging and the eventual diagnosis of Gradenigo syndrome was made. Case presentation A 6-year-old previously healthy boy from Sri Lanka presented with high grade fever, headache, photophobia and left eye pain for 10 days and diplopia for 2 days duration. Neurological examination was unremarkable except for left sided abducens nerve palsy. He had high inflammatory markers and white blood cell count. A tentative differential diagnosis of acute bacterial meningitis complicated by cerebral oedema, acute hydrocephalus or cerebral abscess was made. However, non-contrast CT brain, cerebrospinal fluid analysis and electroencephalogram were normal leading to a diagnostic dilemma. MRI brain with contrast performed 3 days later due to limited resources revealed left mastoiditis extending to petrous temporal bone confirming Gradenigo syndrome. Conclusion This case report highlights the importance of a thorough physical examination in children presenting with unrelated neurological symptoms and signs. Unilateral abducens nerve palsy raises the suspicion of increased intracranial pressure and neuroimaging is vital in diagnostic uncertainties. Gradenigo syndrome emphasises the importance of incorporating anatomical knowledge into clinical practice.
Collapse
Affiliation(s)
- A S Athapathu
- University Paediatrics Unit, Colombo North Teaching Hospital, Ragama, Sri Lanka
| | - E R S Bandara
- University Paediatrics Unit, Colombo North Teaching Hospital, Ragama, Sri Lanka
| | - A A H S Aruppala
- University Paediatrics Unit, Colombo North Teaching Hospital, Ragama, Sri Lanka
| | - K M A U Chandrapala
- University Paediatrics Unit, Colombo North Teaching Hospital, Ragama, Sri Lanka
| | - Sachith Mettananda
- University Paediatrics Unit, Colombo North Teaching Hospital, Ragama, Sri Lanka. .,Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka.
| |
Collapse
|
26
|
Cacciottolo TM, Perikari A, van der Klaauw A, Henning E, Stadler LKJ, Keogh J, Farooqi IS, Tenin G, Keavney B, Ryan E, Budd R, Bewley M, Coelho P, Rumsey W, Sanchez Y, McCafferty J, Dockrell D, Walmsley S, Whyte M, Liu Y, Choy MK, Tenin G, Abraham S, Black G, Keavney B, Ford T, Stanley B, Good R, Rocchiccioli P, McEntegart M, Watkins S, Eteiba H, Shaukat A, Lindsay M, Robertson K, Hood S, McGeoch R, McDade R, Sidik N, McCartney P, Corcoran D, Collison D, Rush C, McConnachie A, Touyz R, Oldroyd K, Berry C, Gazdagh G, Diver L, Marshall J, McGowan R, Ahmed F, Tobias E, Curtis E, Parsons C, Maslin K, D'Angelo S, Moon R, Crozier S, Gossiel F, Bishop N, Kennedy S, Papageorghiou A, Fraser R, Gandhi S, Prentice A, Inskip H, Godfrey K, Schoenmakers I, Javaid MK, Eastell R, Cooper C, Harvey N, Watt ER, Howden A, Mirchandani A, Coelho P, Hukelmann JL, Sadiku P, Plant TM, Cantrell DA, Whyte MKB, Walmsley SR, Mordi I, Forteath C, Wong A, Mohan M, Palmer C, Doney A, Rena G, Lang C, Gray EH, Azarian S, Riva A, Edwards H, McPhail MJW, Williams R, Chokshi S, Patel VC, Edwards LA, Page D, Miossec M, Williams S, Monaghan R, Fotiou E, Santibanez-Koref M, Keavney B, Badat M, Mettananda S, Hua P, Schwessinger R, Hughes J, Higgs D, Davies J. Scientific Business Abstracts of the 113th Annual Meeting of the Association of Physicians of Great Britain and Ireland. QJM 2019; 112:724-729. [PMID: 31505685 DOI: 10.1093/qjmed/hcz175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | - A Perikari
- University of Cambridge Metabolic Research Laboratories
| | | | - E Henning
- University of Cambridge Metabolic Research Laboratories
| | - L K J Stadler
- University of Cambridge Metabolic Research Laboratories
| | - J Keogh
- University of Cambridge Metabolic Research Laboratories
| | - I S Farooqi
- University of Cambridge Metabolic Research Laboratories
| | - G Tenin
- From University of Manchester
| | | | - E Ryan
- Department of Respiratory Medicine, Centre for Inflammation Research, University of Edinburgh
| | - R Budd
- Department of Infection Immunity and Cardiovascular Disease, The Florey Institute for Host-Pathogen Interactions, University of Sheffield
| | - M Bewley
- Department of Infection Immunity and Cardiovascular Disease, The Florey Institute for Host-Pathogen Interactions, University of Sheffield
| | - P Coelho
- Department of Respiratory Medicine, Centre for Inflammation Research, University of Edinburgh
| | - W Rumsey
- Stress and Repair Discovery Performance Unit, Respiratory Therapy Area
| | - Y Sanchez
- Stress and Repair Discovery Performance Unit, Respiratory Therapy Area
| | - J McCafferty
- Department of Respiratory Medicine, Centre for Inflammation Research, University of Edinburgh
| | - D Dockrell
- Department of Respiratory Medicine, Centre for Inflammation Research, University of Edinburgh
| | - S Walmsley
- Department of Respiratory Medicine, Centre for Inflammation Research, University of Edinburgh
| | - M Whyte
- Department of Respiratory Medicine, Centre for Inflammation Research, University of Edinburgh
| | - Y Liu
- From the University of Manchester
| | - M-K Choy
- From the University of Manchester
| | - G Tenin
- From the University of Manchester
| | | | - G Black
- From the University of Manchester
| | | | - T Ford
- BHF Centre of Excellence in Vascular Science and Medicine, University of Glasgow
- Golden Jubilee National Hospital
| | | | - R Good
- Golden Jubilee National Hospital
| | - P Rocchiccioli
- BHF Centre of Excellence in Vascular Science and Medicine, University of Glasgow
- Golden Jubilee National Hospital
| | - M McEntegart
- BHF Centre of Excellence in Vascular Science and Medicine, University of Glasgow
- Golden Jubilee National Hospital
| | | | - H Eteiba
- Golden Jubilee National Hospital
| | | | | | | | - S Hood
- Golden Jubilee National Hospital
| | | | - R McDade
- Golden Jubilee National Hospital
| | - N Sidik
- BHF Centre of Excellence in Vascular Science and Medicine, University of Glasgow
- Golden Jubilee National Hospital
| | - P McCartney
- BHF Centre of Excellence in Vascular Science and Medicine, University of Glasgow
- Golden Jubilee National Hospital
| | - D Corcoran
- BHF Centre of Excellence in Vascular Science and Medicine, University of Glasgow
- Golden Jubilee National Hospital
| | - D Collison
- BHF Centre of Excellence in Vascular Science and Medicine, University of Glasgow
- Golden Jubilee National Hospital
| | - C Rush
- BHF Centre of Excellence in Vascular Science and Medicine, University of Glasgow
- Golden Jubilee National Hospital
| | | | - R Touyz
- BHF Centre of Excellence in Vascular Science and Medicine, University of Glasgow
| | - K Oldroyd
- BHF Centre of Excellence in Vascular Science and Medicine, University of Glasgow
- Golden Jubilee National Hospital
| | - Colin Berry
- BHF Centre of Excellence in Vascular Science and Medicine, University of Glasgow
- Golden Jubilee National Hospital
| | - G Gazdagh
- School of Medicine, Dentistry & Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow
| | - L Diver
- West of Scotland Regional Genetics Service, Laboratory Medicine Building, Queen Elizabeth University Hospital
| | - J Marshall
- Institute of Cancer Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow
| | - R McGowan
- West of Scotland Regional Genetics Service, Laboratory Medicine Building, Queen Elizabeth University Hospital
| | - F Ahmed
- Developmental Endocrinology Research Group, Royal Hospital for Children, University of Glasgow
| | - E Tobias
- Academic Unit of Medical Genetics and Clinical Pathology, Laboratory Medicine Building, Queen Elizabeth University Hospital, University of Glasgow
| | - E Curtis
- MRC Lifecourse Epidemiology Unit, University of Southampton
| | - C Parsons
- MRC Lifecourse Epidemiology Unit, University of Southampton
| | - K Maslin
- MRC Lifecourse Epidemiology Unit, University of Southampton
| | - S D'Angelo
- MRC Lifecourse Epidemiology Unit, University of Southampton
| | - R Moon
- MRC Lifecourse Epidemiology Unit, University of Southampton
| | - S Crozier
- MRC Lifecourse Epidemiology Unit, University of Southampton
| | - F Gossiel
- Academic Unit of Bone Metabolism, University of Sheffield
| | - N Bishop
- Academic Unit of Child Health, University of Sheffield
| | - S Kennedy
- Nuffield Department of Women's & Reproductive Health, John Radcliffe Hospital, University of Oxford
| | - A Papageorghiou
- Nuffield Department of Women's & Reproductive Health, John Radcliffe Hospital, University of Oxford
| | - R Fraser
- Department of Obstetrics and Gynaecology, Sheffield Hospitals NHS Trust, University of Sheffield
| | - S Gandhi
- Department of Obstetrics and Gynaecology, Sheffield Hospitals NHS Trust, University of Sheffield
| | | | - H Inskip
- MRC Lifecourse Epidemiology Unit, University of Southampton
| | - K Godfrey
- MRC Lifecourse Epidemiology Unit, University of Southampton
| | - I Schoenmakers
- Department of Medicine, Faculty of Medicine and Health Sciences, University of East Anglia
| | - M K Javaid
- NIHR Oxford Biomedical Research Centre, University of Oxford
| | - R Eastell
- Academic Unit of Bone Metabolism, University of Sheffield
| | - C Cooper
- MRC Lifecourse Epidemiology Unit, University of Southampton
| | - N Harvey
- MRC Lifecourse Epidemiology Unit, University of Southampton
| | | | - A Howden
- School of Life Sciences, University of Dundee
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - E H Gray
- Institute of Hepatology, Foundation for Liver Research
- School of Immunology and Microbial Sciences, King's College London
| | - S Azarian
- Institute of Hepatology, Foundation for Liver Research
| | - A Riva
- Institute of Hepatology, Foundation for Liver Research
- School of Immunology and Microbial Sciences, King's College London
| | - H Edwards
- Institute of Hepatology, Foundation for Liver Research
- School of Immunology and Microbial Sciences, King's College London
| | - M J W McPhail
- School of Immunology and Microbial Sciences, King's College London
- Institute of Liver Studies & Transplantation, King's College Hospital
| | - R Williams
- Institute of Hepatology, Foundation for Liver Research
- School of Immunology and Microbial Sciences, King's College London
| | - S Chokshi
- Institute of Hepatology, Foundation for Liver Research
- School of Immunology and Microbial Sciences, King's College London
| | - V C Patel
- Institute of Hepatology, Foundation for Liver Research
- School of Immunology and Microbial Sciences, King's College London
- Institute of Liver Studies & Transplantation, King's College Hospital
| | - L A Edwards
- Institute of Hepatology, Foundation for Liver Research
- School of Immunology and Microbial Sciences, King's College London
| | - D Page
- University of Manchester
- Manchester Metropolitan University
| | - M Miossec
- Manchester Metropolitan University
- University of Newcastle
| | | | | | | | | | | | - M Badat
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital
| | - S Mettananda
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya
| | - P Hua
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital
| | - R Schwessinger
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital
| | - J Hughes
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital
| | - D Higgs
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital
| | - J Davies
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital
| |
Collapse
|
27
|
Allen A, Perera S, Perera L, Rodrigo R, Mettananda S, Matope A, Silva I, Hameed N, Fisher CA, Olivieri N, Weatherall DJ, Allen S, Premawardhena A. A "One-Stop" Screening Protocol for Haemoglobinopathy Traits and Iron Deficiency in Sri Lanka. Front Mol Biosci 2019; 6:66. [PMID: 31448286 PMCID: PMC6696778 DOI: 10.3389/fmolb.2019.00066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 07/24/2019] [Indexed: 01/19/2023] Open
Abstract
Introduction: The high frequencies of carriers of severe haemoglobinopathies and of iron deficiency in Southeast Asia require reliable and affordable tests to improve on current screening procedures. Objectives: We evaluate a "one stop" approach using the THALCON dichlorophenolindophenol (DCIP) and one-tube osmotic fragility (OF) tests and measurement of Zinc Protoporphyrin (ZPP) to detect and distinguish HbE and β-thalassaemia traits from iron deficiency. We compare findings with current screening practice in Sri Lanka that relies on the identification of low mean red cell volume and/or mean red cell hemoglobin for this purpose. Methods: Between November 2017 and May 2018, we undertook a cross-sectional survey of secondary school students in Gampaha district, Sri Lanka. The THALCON-DCIP and OF tests were compared to capillary electrophoresis (CE), used as a gold standard to detect haemoglobinopathies. ZPP was measured in whole blood. Plasma ferritin and C-reactive protein (CRP) were measured in students with a raised ZPP concentration. Results: We collected venous blood samples from 1,324/1,332 (99.4%) students. The median age of the students was 17 (IQR 16-18) years, all were Sinhalese and 814/1,324 (61.5%) were female. CE identified 3 students with HbE trait and 26 students with β-thalassaemia trait. The THALCON-DCIP test was positive only in the 3 students with HbE (sensitivity 100%, 95% CI 29.2-100.0; specificity 100%, 95% CI 99.7-100.0). The THALCON-OF test identified all 26 students with β-thalassaemia trait (sensitivity = 100%, 95% CI 86.8-100.0) and 287 students with a normal CE result (specificity = 77.9%; 95% CI 75.5-80.1). It was also positive in 2/3 (66.7%) students with HbE trait. Iron deficiency (ZPP > 70 μmol/mol heme) was present in 118/1,240 (9.5%) students with a normal hemoglobin genotype, all of whom had plasma ferritin <15 ng/ml and CRP <5 mg/L. Conclusion: This one-stop approach offers reliable and affordable population screening for both haemoglobinopathy traits and iron deficiency in resource-limited settings where these conditions are common and ensures that iron supplements are targeted only to those who require them. Further work is warranted to refine the OF test to reduce the number of false positive results.
Collapse
Affiliation(s)
- Angela Allen
- MRC Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, University of Oxford, Oxford, United Kingdom.,Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Shiromi Perera
- Faculty of Medicine, University of Kelaniya, Colombo, Sri Lanka
| | - Luxman Perera
- Faculty of Medicine, University of Kelaniya, Colombo, Sri Lanka
| | - Rexan Rodrigo
- Thalassemia Care Unit, North Colombo Teaching Hospital, Ragama, Sri Lanka
| | | | - Agnes Matope
- Tropical Clinical Trials Unit, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Ishari Silva
- Thalassemia Care Unit, North Colombo Teaching Hospital, Ragama, Sri Lanka
| | - Nizri Hameed
- Thalassemia Care Unit, North Colombo Teaching Hospital, Ragama, Sri Lanka
| | - Christopher A Fisher
- MRC Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, University of Oxford, Oxford, United Kingdom
| | - Nancy Olivieri
- Pediatrics, Medicine, and Public Health Sciences, University of Toronto, Toronto, ON, Canada
| | - David J Weatherall
- MRC Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, University of Oxford, Oxford, United Kingdom
| | - Stephen Allen
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Anuja Premawardhena
- Faculty of Medicine, University of Kelaniya, Colombo, Sri Lanka.,Thalassemia Care Unit, North Colombo Teaching Hospital, Ragama, Sri Lanka
| |
Collapse
|
28
|
Premawardhana AP, Mudiyanse R, De Silva ST, Jiffry N, Nelumdeniya U, de Silva U, Lamabadusuriya SP, Pushpakumara K, Dissanayaka R, Jansz M, Rifaya I, Navarathne U, Thirukumaran V, Arambepola M, Dayanada Bandara W, Vaidyanatha U, Mendis D, Weerasekara K, De Silva N, Shantha Kumara DK, Amarasena SD, Hemantha KK, Refai MACM, Silva I, Hameed N, Rajiyah F, Mettananda S, Allen A, Weatherall DJ, Oliveri NF. A nationwide survey of hospital-based thalassemia patients and standards of care and a preliminary assessment of the national prevention program in Sri Lanka. PLoS One 2019; 14:e0220852. [PMID: 31419232 PMCID: PMC6697367 DOI: 10.1371/journal.pone.0220852] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Accepted: 07/24/2019] [Indexed: 01/19/2023] Open
Abstract
Objectives Our aim was to describe the numbers and distribution of patients with different types of thalassemia and to assess the standards of care in all thalassemia treatment centers throughout Sri Lanka and the success of the ongoing prevention programme. Methods This cross-sectional island-wide survey was conducted by two trained medical graduates, who visited each thalassemia center to collect data from every patient, using a standardized form. Data was collected through review of patient registers and clinical records. Results We collected data on 1774 patients from 23 centers. 1219 patients (68.7%) had homozygous β-thalassemia, 360 patients (20.3%) had hemoglobin E β-thalassemia, and 50 patients (2%) had sickle β-thalassemia. There were unacceptably high serum ferritin levels in almost all centers. The annual number of births of patients with β-thalassaemia varied between 45–55, with little evidence of reduction over 19 years. Conclusions Central coordination of the treatment and ultimately prevention of thalassemia is urgently needed in Sri Lanka. Development of expert centers with designated staff with sufficient resources will improve the quality of care and is preferred to managing patients in multiple small units.
Collapse
Affiliation(s)
| | - Rasnayaka Mudiyanse
- Department of Pediatrics, Faculty of Medicine, University of Peradeniya, Sri Lanka
| | - Shamila T. De Silva
- Department of Medicine, Faculty of Medicine, University of Kelaniya, Sri Lanka
| | | | | | | | | | | | | | - M. Jansz
- General Hospital, Vavuniya, Sri Lanka
| | - I. Rifaya
- District General Hospital, Ampara, Sri Lanka
| | | | | | | | | | | | | | | | | | | | | | | | | | - Ishari Silva
- Hemal's Adolescent and Adult Thalassemia Care Centre, North Colombo Teaching Hospital, Ragama, Sri Lanka
| | - Nizri Hameed
- Hemal's Adolescent and Adult Thalassemia Care Centre, North Colombo Teaching Hospital, Ragama, Sri Lanka
| | - F. Rajiyah
- Department of Medicine, Faculty of Medicine, University of Kelaniya, Sri Lanka
| | - Sachith Mettananda
- Department of Pediatrics, Faculty of Medicine, University of Kelaniya, Sri Lanka
| | - Angela Allen
- Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
| | - David J. Weatherall
- Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
| | | |
Collapse
|
29
|
Mettananda S, Yasara N, Fisher CA, Taylor S, Gibbons R, Higgs D. Synergistic silencing of α-globin and induction of γ-globin by histone deacetylase inhibitor, vorinostat as a potential therapy for β-thalassaemia. Sci Rep 2019; 9:11649. [PMID: 31406232 PMCID: PMC6690964 DOI: 10.1038/s41598-019-48204-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 07/30/2019] [Indexed: 12/22/2022] Open
Abstract
β-Thalassaemia is one of the most common monogenic diseases with no effective cure in the majority of patients. Unbalanced production of α-globin in the presence of defective synthesis of β-globin is the primary mechanism for anaemia in β-thalassaemia. Clinical genetic data accumulated over three decades have clearly demonstrated that direct suppression of α-globin and induction of γ-globin are effective in reducing the globin chain imbalance in erythroid cells hence improving the clinical outcome of patients with β-thalassaemia. Here, we show that the histone deacetylase inhibitor drug, vorinostat, in addition to its beneficial effects for patients with β-thalassaemia through induction of γ-globin, has the potential to simultaneously suppress α-globin. We further show that vorinostat exhibits these synergistic beneficial effects in globin gene expression at nanomolar concentrations without perturbing erythroid expansion, viability, differentiation or the transcriptome. This new evidence will be helpful for the interpretation of existing clinical trials and future clinical studies that are directed towards finding a cure for β-thalassaemia using vorinostat.
Collapse
Affiliation(s)
- Sachith Mettananda
- Department of Paediatrics, University of Kelaniya, Thalagolla Road, Ragama, 11010, Sri Lanka. .,Medical Research Council (MRC) Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Headington, Oxford, OX3 9DS, UK.
| | - Nirmani Yasara
- Department of Paediatrics, University of Kelaniya, Thalagolla Road, Ragama, 11010, Sri Lanka
| | - Christopher A Fisher
- Medical Research Council (MRC) Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Headington, Oxford, OX3 9DS, UK
| | - Stephen Taylor
- Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Richard Gibbons
- Medical Research Council (MRC) Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Headington, Oxford, OX3 9DS, UK
| | - Doug Higgs
- Medical Research Council (MRC) Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Headington, Oxford, OX3 9DS, UK
| |
Collapse
|
30
|
Mettananda S, Pathiraja H, Peiris R, Bandara D, de Silva U, Mettananda C, Premawardhena A. Health related quality of life among children with transfusion dependent β-thalassaemia major and haemoglobin E β-thalassaemia in Sri Lanka: a case control study. Health Qual Life Outcomes 2019; 17:137. [PMID: 31395066 PMCID: PMC6686351 DOI: 10.1186/s12955-019-1207-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 07/30/2019] [Indexed: 01/19/2023] Open
Abstract
Background Thalassaemia is a chronic disease without an effective cure in a majority. The clinical management has improved considerably during recent years; however, minimal attempts are made to up lift the quality of life among patients, especially in developing countries. Here we aim to describe and compare and to determine factors associated with health related quality of life among patients with transfusion dependent β-thalassaemia major and haemoglobin E β-thalassemia in Sri Lanka. Methods A case control study was conducted in the three largest thalassaemia centres of Sri Lanka. All patients with transfusion dependent β-thalassaemia (β-thalassaemia major and haemoglobin E β-thalassaemia) aged 5–18 years were recruited as cases whilst a randomly selected group of children without chronic diseases were recruited as controls. Socio-demographic and clinical data were collected using an interviewer-administered questionnaire and health related quality of life was measured using the validated Paediatric Quality of Life Inventory Version 4.0. Results Two hundred and seventy one patients with transfusion dependent β-thalassaemia (male-49.1%; mean age- 10.9 ± 3.6 years) and 254 controls (male-47.2%; mean age- 10.4 ± 3.5 years) were recruited. Mean health-related quality of life scores were significantly lower in patients compared to controls (72.9 vs. 91.5, p < 0.001). Of the patients, 224 (84%) had β-thalassaemia major and 43 (16%) had haemoglobin E β-thalassaemia. Quality of life scores in psychological health (p < 0.05), emotional functioning (p < 0.05) and social functioning (p < 0.05) were significantly lower in patients with haemoglobin E β-thalassaemia compared to β-thalassaemia major. Splenectomy (p < 0.05), short stature (p < 0.05), under nutrition (p < 0.05) and longer hospital stays (p < 0.05) were significantly associated with lower quality of life scores. Conclusions Despite improvements in management, the quality of life among patients with β-thalassaemia still remains low. This is more pronounced in the subset of patients with haemoglobin E β-thalassaemia. Splenectomy, short stature, undernutrition and longer hospital stays were significantly associated with poor quality of life. It is timely, even in developing countries, to direct emphasis and to take appropriate steps to improve standards of living and quality of life of patients with β-thalassaemia.
Collapse
Affiliation(s)
- Sachith Mettananda
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Thalagolla Road, Ragama, 11010, Sri Lanka. .,Colombo North Teaching Hospital, Ragama, Sri Lanka.
| | - Hashan Pathiraja
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Thalagolla Road, Ragama, 11010, Sri Lanka
| | - Ravindu Peiris
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Thalagolla Road, Ragama, 11010, Sri Lanka
| | | | | | - Chamila Mettananda
- Department of Pharmacology, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka
| | - Anuja Premawardhena
- Colombo North Teaching Hospital, Ragama, Sri Lanka.,Department of Medicine, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka
| |
Collapse
|
31
|
Mettananda S, Pathiraja H, Peiris R, Wickramarathne N, Bandara D, de Silva U, Mettananda C, Premawardhena A. Blood transfusion therapy for β-thalassemia major and hemoglobin E β-thalassemia: Adequacy, trends, and determinants in Sri Lanka. Pediatr Blood Cancer 2019; 66:e27643. [PMID: 30697927 DOI: 10.1002/pbc.27643] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 01/15/2019] [Accepted: 01/17/2019] [Indexed: 01/14/2023]
Abstract
BACKGROUND Regular blood transfusion therapy still remains the cornerstone in the management of β-thalassemia. Although recommendations are clear for patients with β-thalassemia major, uniform transfusion guidelines are lacking for patients with hemoglobin E β-thalassemia. In this study, we aim to describe the adequacy, trends, and determinants of blood transfusion therapy in a large cohort of pediatric patients with β-thalassemia major and hemoglobin E β-thalassemia. METHODS/PROCEDURE This cross-sectional study was performed among all regularly transfused patents with β-thalassemia aged 2 to 18 years attending three large thalassemia centers in Sri Lanka. Data were collected using an interviewer-administered questionnaire, perusal of clinical records, and physical examination of patients by trained doctors. RESULTS A total of 328 patients (male 47%) were recruited; 83% had β-thalassemia major, whereas 16% had hemoglobin E β-thalassemia. Sixty-one percent of patients had low pretransfusion hemoglobin levels (< 9.0 g/dL) despite receiving high transfusion volumes (> 200 mL/kg/year) by a majority (56%). Median pretransfusion hemoglobin was significantly lower in patients with hemoglobin E β-thalassemia compared with β-thalassemia major (P < 0.001); however, there was no difference in requirement for high transfusion volumes over 200 mL/kg/year in both groups (P = 0.14). Hepatomegaly and splenomegaly were more common in hemoglobin E β-thalassemia and were associated with lower pretransfusion hemoglobin. Transfusion requirements were higher among patients with hepatitis C and in those who are underweight. CONCLUSIONS Over 60% of regularly transfused patients with β-thalassemia have low pretransfusion hemoglobin levels despite receiving large transfusion volumes. Patients with hemoglobin E β-thalassemia are undertransfused and specific recommendations should be developed to guide transfusions in these patients.
Collapse
Affiliation(s)
- Sachith Mettananda
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Sri Lanka.,Colombo North Teaching Hospital, Ragama, Sri Lanka
| | - Hashan Pathiraja
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Sri Lanka
| | - Ravindu Peiris
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Sri Lanka
| | | | | | | | - Chamila Mettananda
- Department of Pharmacology, Faculty of Medicine, University of Kelaniya, Sri Lanka
| | - Anuja Premawardhena
- Colombo North Teaching Hospital, Ragama, Sri Lanka.,Department of Medicine, Faculty of Medicine, University of Kelaniya, Sri Lanka
| |
Collapse
|
32
|
Premawardhena A, Fernando R, Kumarage S, Nishad N, Goonatilleke D, Silva I, Mettananda S. Place for elective cholecystectomy for patients with severe thalassaemia: a retrospective case control study. BMC Res Notes 2019; 12:245. [PMID: 31036075 PMCID: PMC6489186 DOI: 10.1186/s13104-019-4285-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 04/25/2019] [Indexed: 11/10/2022] Open
Abstract
Objective At present, cholecystectomy is carried out for thalassaemia patients with gall stone disease only if they develop symptoms of cholecystitis, except in the rare instance where an un-inflammed gall bladder is removed simultaneously with splenectomy. We carried out this retrospective analysis of case records to examine if patients with thalassaemia have a higher rate of peri operative complications compared to non-thalassaemics with gall stone disease, warranting a change of policy to justify elective cholecystectomy. Results Case records of 540 patients with thalassaemia were retrospectively analysed of which 98 were found to have gallstones. Records of 62 patients without thalassaemia with gall stone disease too were used for comparison. 19 of patients with thalassaemia and 52 of non-thalassaemic who had gallstones had undergone cholecystectomy. In all but 5 patients with thalassaemia cholecystectomy was done following attacks of acute cholecystitis as was the case in the non-thalassaemic controls. A significantly higher proportion of early and late complications had occurred in thalassaemia patients compared to non-thalassaemic patients post operatively. Six deaths related to sepsis following acute cholecystitis in the peri operative period were reported among 19 thalassaemia patients whereas no deaths were reported among 55 non-thalassaemic patients who underwent cholecystectomy for gallstones.
Collapse
Affiliation(s)
- Anuja Premawardhena
- Department of Medicine, Faculty of Medicine, University of Kelaniya, PO Box 6, Talagolla Rd., Ragama, Sri Lanka.
| | | | - Sumudu Kumarage
- Department of Surgery, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka
| | | | - Dilith Goonatilleke
- Department of Medicine, Faculty of Medicine, University of Kelaniya, PO Box 6, Talagolla Rd., Ragama, Sri Lanka
| | - Ishari Silva
- North Colombo (Teaching) Hospital, Ragama, Sri Lanka
| | - Sachith Mettananda
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka
| |
Collapse
|
33
|
Mettananda S, Suranjan M, Fernando R, Dias T, Mettananda C, Rodrigo R, Perera L, Gibbons R, Premawardhena A, Higgs D. Anaemia among females in child-bearing age: Relative contributions, effects and interactions of α- and β-thalassaemia. PLoS One 2018; 13:e0206928. [PMID: 30388173 PMCID: PMC6214573 DOI: 10.1371/journal.pone.0206928] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 10/21/2018] [Indexed: 12/04/2022] Open
Abstract
Introduction Anaemia in women during pregnancy and child bearing age is one of the most common global health problems. Reasons are numerous, but in many cases only minimal attempts are made to elucidate the underlying causes. In this study we aim to identify aetiology of anaemia in women of child bearing age and to determine the relative contributions, effects and interactions of α- and β-thalassaemia in a region of the world where thalassaemia is endemic. Methods A cross sectional study was conducted at the Colombo North Teaching Hospital of Sri Lanka. The patient database of deliveries between January 2015 and September 2016 at University Obstetrics Unit was screened to identify women with anaemia during pregnancy and 253 anaemic females were randomly re-called for the study. Data were collected using an interviewer-administered questionnaire and haematological investigations were done to identify aetiologies. Results Out of the 253 females who were anaemic during pregnancy and were re-called, 8 were excluded due to being currently pregnant. Of the remaining 245 females, 117(47.8%) remained anaemic and another 22(9.0%) had non-anaemic microcytosis. Of anaemic females, 28(24.8%) were iron deficient, 40(35.4%) had low-normal serum ferritin without fulfilling the criteria for iron deficiency,18(15.3%) had β-haemoglobinopathy trait and 20(17.0%) had α-thalassaemia trait. Of females who had non-anaemic microcytosis, 14(66.0%) had α-thalassaemia trait. In 4 females, both α- and β-thalassaemia trait coexist. These females had higher levels of haemoglobin (p = 0.06), MCV (p<0.05) and MCH (p<0.01) compared to individuals with only β-thalassaemia trait. A significantly higher proportion of premature births (p<0.01) and lower mean birth weights (p<0.05) were observed in patients with α-thalassaemia trait. Conclusions Nearly one third of anaemic females in child bearing age had thalassaemia trait of which α-thalassemia contributes to a majority. Both α- and β-thalassaemia trait can co-exist and have ameliorating effects on red cell indices in heterozygous states. α-Thalassaemia trait was significantly associated with premature births and low birth weight. It is of paramount importance to investigate the causes of anaemia in women of child bearing age and during pregnancy in addition to providing universal iron supplementation.
Collapse
Affiliation(s)
- Sachith Mettananda
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka
- Colombo North Teaching Hospital, Ragama, Sri Lanka
- * E-mail:
| | - Marius Suranjan
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka
| | - Roshale Fernando
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka
| | - Tiran Dias
- Colombo North Teaching Hospital, Ragama, Sri Lanka
- Department of Obstetrics and Gynaecology, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka
| | - Chamila Mettananda
- Department of Pharmacology, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka
| | - Rexan Rodrigo
- Department of Medicine, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka
| | - Lakshman Perera
- Department of Medicine, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka
| | - Richard Gibbons
- MRC Molecular Haematology Unit, MRC Weatherall Institute Molecular Medicine, University of Oxford, Oxford, United Kingdom
| | - Anuja Premawardhena
- Colombo North Teaching Hospital, Ragama, Sri Lanka
- Department of Medicine, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka
| | - Douglas Higgs
- MRC Molecular Haematology Unit, MRC Weatherall Institute Molecular Medicine, University of Oxford, Oxford, United Kingdom
| |
Collapse
|
34
|
Jayamanne C, Sandamal S, Jayasundara K, Saranavabavananthan M, Mettananda S. Smith-Lemli-Opitz syndrome presenting as acute adrenal crisis in a child: a case report. J Med Case Rep 2018; 12:217. [PMID: 30092813 PMCID: PMC6085650 DOI: 10.1186/s13256-018-1738-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Accepted: 06/08/2018] [Indexed: 01/08/2023] Open
Abstract
Background Smith–Lemli–Opitz syndrome is a rare autosomal recessive disorder of cholesterol biosynthesis which is characterized by multiple congenital malformations and global developmental delay. Here we report the case of a 3-year-old, previously undiagnosed, child with Smith–Lemli–Opitz syndrome presenting with acute adrenal crisis, which is an extremely rare and atypical presentation of this disease. Case presentation A 3-year-old Sri Lankan Sinhalese boy without evidence of infection presented with circulatory collapse. He had a normal perinatal period; however, his early infancy was complicated by poor feeding, episodes of loose stools, failure to thrive, and several episodes of unexplained drowsiness. His weight, height, and occipitofrontal circumference were well below the third percentile. He had soft dysmorphic features that included microcephaly, bitemporal narrowing, upward slanting eyes, epicanthal folds, partial ptosis, broad nasal bridge, low set posteriorly rotated ears, high arched palate, and short neck. Marked hyperpigmentation was noted in perioral, buccal, and palmar areas. His pulses were rapid and low in volume and his systolic blood pressure was low. Initial resuscitation was performed by administering multiple crystalloid fluid boluses. A septic screen was negative. His blood glucose and serum bicarbonate levels were low and serum electrolytes revealed hyponatremia with hyperkalemia. Serum spot cortisol level was low normal and 17-hydroxyprogesterone level was low. Diagnosis of Smith–Lemli–Opitz syndrome and associated adrenal crisis was made based on clinical and biochemical features. Intravenously administered hydrocortisone was commenced to which he showed a marked clinical response. Conclusions This case describes a rare and atypical presentation of Smith–Lemli–Opitz syndrome and highlights the importance of making early and accurate syndromic diagnoses in children with dysmorphism to avoid sudden and life-threatening complications.
Collapse
Affiliation(s)
- Chamara Jayamanne
- University Paediatric Unit, Colombo North Teaching Hospital, Ragama, Sri Lanka.
| | - Sajith Sandamal
- University Paediatric Unit, Colombo North Teaching Hospital, Ragama, Sri Lanka
| | - Kasun Jayasundara
- University Paediatric Unit, Colombo North Teaching Hospital, Ragama, Sri Lanka
| | | | - Sachith Mettananda
- University Paediatric Unit, Colombo North Teaching Hospital, Ragama, Sri Lanka.,Department of Paediatrics, University of Kelaniya, Ragama, Sri Lanka
| |
Collapse
|
35
|
Suriapperuma T, Peiris R, Mettananda C, Premawardhena A, Mettananda S. Body iron status of children and adolescents with transfusion dependent β-thalassaemia: trends of serum ferritin and associations of optimal body iron control. BMC Res Notes 2018; 11:547. [PMID: 30071883 PMCID: PMC6071405 DOI: 10.1186/s13104-018-3634-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 07/20/2018] [Indexed: 12/16/2022] Open
Abstract
Objective This cross sectional study aims to describe the body iron status, trends of serum ferritin and associations of optimal body iron control in patients aged below 16 years with transfusion dependent β-thalassaemia attending Paediatric and Adolescent Thalassaemia Centres of the Colombo North Teaching Hospital of Sri Lanka. Results Out of 54 children, 51% were males and a majority were aged 11–16 years; 83% had β-thalassaemia major while 13% had HbE β-thalassaemia. Mean serum ferritin was 1778(± 1458) µg/l and 29% had optimal serum ferritin (below 1000 µg/l). Trend of mean serum ferritin over time showed gradual decline between 2011 and 2017 and longitudinal trend of individual patients at yearly intervals showed gradual rise until 5 years of age and plateauing thereafter. All except two patients were receiving iron chelator medication of which the most commonly used was oral deferasirox (92%). The most common iron-related complications were short stature (24.1%) and pubertal delay (42.8% of > 14 years). None of the patients had hypothyroidism, hypoparathyroidism or diabetes. Optimal serum ferritin levels were significantly associated with the diagnosis of thalassaemia at a later age (23.6 vs 9.0 months) and higher family income (OR-4.81;95%CI 1.17–19.67) however was not associated with the age of the patient or duration of transfusion. Electronic supplementary material The online version of this article (10.1186/s13104-018-3634-9) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
| | - Ravindu Peiris
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Thalagolla Road, Ragama, 11010, Sri Lanka
| | - Chamila Mettananda
- Department of Pharmacology, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka
| | - Anuja Premawardhena
- Colombo North Teaching Hospital, Ragama, Sri Lanka.,Department of Medicine, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka
| | - Sachith Mettananda
- Colombo North Teaching Hospital, Ragama, Sri Lanka. .,Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Thalagolla Road, Ragama, 11010, Sri Lanka.
| |
Collapse
|
36
|
Mettananda S, Kamalanathan P, Dhananja Namalie K. Streptococcus bovis - unusual etiology of meningitis in a neonate with Down syndrome: a case report. J Med Case Rep 2018; 12:93. [PMID: 29642927 PMCID: PMC5896073 DOI: 10.1186/s13256-018-1634-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 02/24/2018] [Indexed: 12/03/2022] Open
Abstract
Background Common etiological agents of neonatal meningitis include group B Streptococcus, Escherichia coli, and Staphylococcus aureus. Here we report a rare pathogen – Streptococcus bovis – causing meningitis in a premature neonate with Down syndrome. Case presentation A 26-day-old Asian male neonate with Down syndrome presented with a history of high-grade fever, poor sucking, poor cry, and reduced activity. On admission, he was febrile and had features of circulatory collapse. A cerebrospinal fluid examination confirmed bacterial meningitis and blood culture isolated the causative organism: group D Streptococcus, which was verified as Streptococcus bovis biotype 2. An echocardiogram did not show evidence of infective endocarditis. Conclusions This is probably the first report of neonatal meningitis due to Streptococcus bovis in a child with Down syndrome. Although our patient did not show features of overt immunodeficiency, subtle abnormalities in his immune system would have predisposed him to infection with this unusual organism. This case highlights the need for considering unusual pathogens when managing serious infections in children with Down syndrome.
Collapse
Affiliation(s)
- Sachith Mettananda
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Thalagolla Raod, Ragama, 11010, Sri Lanka. .,Colombo North Teaching Hospital, Ragama, 11010, Sri Lanka.
| | | | | |
Collapse
|
37
|
Abstract
Thalassemia is a disorder of hemoglobin characterized by reduced or absent production of one of the globin chains in human red blood cells with relative excess of the other. Impaired synthesis of β-globin results in β-thalassemia, whereas defective synthesis of α-globin leads to α-thalassemia. Despite being a monogenic disorder, thalassemia exhibits remarkable clinical heterogeneity that is directly related to the intracellular imbalance between α- and β-like globin chains. Novel insights into the genetic modifiers have contributed to the understanding of the correlation between genotype and phenotype and are being explored as therapeutic pathways to cure this life-limiting disease.
Collapse
Affiliation(s)
- Sachith Mettananda
- Molecular Hematology Unit, Medical Research Council (MRC), Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Headington, Oxford OX3 9DS, UK; Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Thalagolla Road, Ragama 11010, Sri Lanka
| | - Douglas R Higgs
- Molecular Hematology Unit, Medical Research Council (MRC), Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Headington, Oxford OX3 9DS, UK; National Institute for Health Research, Oxford Biomedical Research Centre, Blood Theme, Oxford University Hospitals, Headington, Oxford OX3 9DU, UK.
| |
Collapse
|
38
|
Jayamanne C, Fernando L, Mettananda S. Chiari malformation type 1 presenting as unilateral progressive foot drop: a case report and review of literature. BMC Pediatr 2018; 18:34. [PMID: 29415676 PMCID: PMC5804004 DOI: 10.1186/s12887-018-1028-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 01/29/2018] [Indexed: 11/27/2022] Open
Abstract
Background Foot drop is a disabling clinical condition with multiplicity of causes, which requires detailed evaluation to identify the exact aetiology. Here, we report an extremely rare cause of foot drop in a child, which if not recognized early, could lead to multiple complications. Case presentation A 6-year-old girl presented with difficulty in walking and left sided foot droop for1-month duration. On examination she had reduced muscle power in dorsiflexors and plantar flexors and diminished knee and absent ankle jerk in the left side. Sensory loss was noted in L4 and L5 dermatomes on the left side. Superficial abdominal reflex was absent on the left side while preserved in the right. Nerve conduction and electromyography revealed nerve root or spinal cord cause for the foot drop. These results prompted ordering MRI spine and brain which revealed Chiari malformation type-1 with holocord syrinx extending from the cervicomedullary junction to conus medullaris. Conclusions This case highlights the importance of considering broad differential diagnosis for foot drop and value of the complete neurological examination including superficial reflexes in arriving at a diagnosis. Prompt diagnosis helped to early neurosurgical referral and intervention which is an important prognostic factor.
Collapse
Affiliation(s)
- Chamara Jayamanne
- North Colombo Teaching Hospital, Ragama, Sri Lanka. .,, Colombo, Sri Lanka.
| | | | | |
Collapse
|
39
|
Mettananda S, Clark K, Fisher CA, Sloane-Stanley JA, Gibbons RJ, Higgs DR. Phenotypic and molecular characterization of a serum-free miniature erythroid differentiation system suitable for high-throughput screening and single-cell assays. Exp Hematol 2018; 60:10-20. [PMID: 29329925 DOI: 10.1016/j.exphem.2018.01.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 12/22/2017] [Accepted: 01/01/2018] [Indexed: 11/15/2022]
Abstract
In vitro erythroid differentiation systems are used to study the mechanisms underlying normal and abnormal erythropoiesis and to test the effects of various extracellular factors on erythropoiesis. The use of serum or conditioned medium in liquid cultures and the seeding of cultures with heterogeneous peripheral blood mononuclear cells confound the reproducibility of these systems. Newer erythroid differentiation culture systems have overcome some of these limitations by using a fully defined, serum-free medium and initiating cultures using purified CD34+ cells. Although widely used in bulk cultures, these protocols have not been rigorously tested in high-throughput or single-cell assays. Here, we describe a serum-free erythroid differentiation system suitable for small-scale and single-cell experiments. This system generates large numbers of terminally differentiated erythroid cells of very high purity. Here we have adapted this culture system to a 96-well format and have developed a protocol to grow erythroid colonies from single erythroid progenitors in minute culture volumes.
Collapse
Affiliation(s)
- Sachith Mettananda
- Medical Research Council (MRC) Molecular Hematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Headington, Oxford, United Kingdom; Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka
| | - Kevin Clark
- Medical Research Council (MRC) Molecular Hematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Headington, Oxford, United Kingdom
| | - Chris A Fisher
- Medical Research Council (MRC) Molecular Hematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Headington, Oxford, United Kingdom
| | - Jackie A Sloane-Stanley
- Medical Research Council (MRC) Molecular Hematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Headington, Oxford, United Kingdom
| | - Richard J Gibbons
- Medical Research Council (MRC) Molecular Hematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Headington, Oxford, United Kingdom
| | - Douglas R Higgs
- Medical Research Council (MRC) Molecular Hematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Headington, Oxford, United Kingdom; Oxford National Institute for Health Research Biomedical Research Centre, Blood Theme, Oxford University Hospital, John Radcliffe Hospital, Headington, Oxford, United Kingdom.
| |
Collapse
|
40
|
Mettananda S, Fisher CA, Sloane-Stanley JA, Taylor S, Oppermann U, Gibbons RJ, Higgs DR. Selective silencing of α-globin by the histone demethylase inhibitor IOX1: a potentially new pathway for treatment of β-thalassemia. Haematologica 2016; 102:e80-e84. [PMID: 27810991 DOI: 10.3324/haematol.2016.155655] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
- Sachith Mettananda
- Medical Research Council (MRC) Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, UK.,Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Sri Lanka
| | - Christopher A Fisher
- Medical Research Council (MRC) Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, UK
| | | | - Stephen Taylor
- Weatherall Institute of Molecular Medicine, University of Oxford, UK
| | - Udo Oppermann
- Structural Genomics Consortium, University of Oxford, UK.,The Botnar Research Centre, NIHR BRU Oxford, University of Oxford, UK
| | - Richard J Gibbons
- Medical Research Council (MRC) Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, UK
| | - Douglas R Higgs
- Medical Research Council (MRC) Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, UK .,Oxford National Institute for Health Research Biomedical Research Centre, Blood Theme, Oxford University Hospital, UK
| |
Collapse
|
41
|
Abstract
Over the past three decades, a vast amount of new information has been uncovered describing how the globin genes are regulated. This knowledge has provided significant insights into the general understanding of the regulation of human genes. It is now known that molecular defects within and around the α- and β-globin genes, as well as in the distant regulatory elements, can cause thalassemia. Unbalanced production of globin chains owing to defective synthesis of one, and the continued unopposed synthesis of another, is the central causative factor in the cellular pathology and pathophysiology of thalassemia. A large body of clinical, genetic, and experimental evidence suggests that altering globin chain imbalance by reducing the production of α-globin synthesis ameliorates the disease severity in patients with β-thalassemia. With the development of new genetic-based therapeutic tools that have a potential to decrease the expression of a selected gene in a tissue-specific manner, the possibility of decreasing expression of the α-globin gene to improve the clinical severity of β-thalassemia could become a reality.
Collapse
Affiliation(s)
- Sachith Mettananda
- Medical Research Council (MRC) Molecular Hematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom.,Department of Pediatrics, Faculty of Medicine, University of Kelaniya, Sri Lanka
| | - Richard J Gibbons
- Medical Research Council (MRC) Molecular Hematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
| | - Douglas R Higgs
- Medical Research Council (MRC) Molecular Hematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom.,Oxford National Institute for Health Research Biomedical Research Centre, Blood Theme, Oxford University Hospital, Oxford, United Kingdom
| |
Collapse
|
42
|
Yang CT, French A, Goh PA, Pagnamenta A, Mettananda S, Taylor J, Knight S, Nathwani A, Roberts DJ, Watt SM, Carpenter L. Human induced pluripotent stem cell derived erythroblasts can undergo definitive erythropoiesis and co-express gamma and beta globins. Br J Haematol 2014; 166:435-48. [PMID: 24837254 PMCID: PMC4375519 DOI: 10.1111/bjh.12910] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Accepted: 03/09/2014] [Indexed: 12/23/2022]
Abstract
Human induced pluripotent stem cells (hiPSCs), like embryonic stem cells, are under intense investigation for novel approaches to model disease and for regenerative therapies. Here, we describe the derivation and characterization of hiPSCs from a variety of sources and show that, irrespective of origin or method of reprogramming, hiPSCs can be differentiated on OP9 stroma towards a multi-lineage haemo-endothelial progenitor that can contribute to CD144(+) endothelium, CD235a(+) erythrocytes (myeloid lineage) and CD19(+) B lymphocytes (lymphoid lineage). Within the erythroblast lineage, we were able to demonstrate by single cell analysis (flow cytometry), that hiPSC-derived erythroblasts express alpha globin as previously described, and that a sub-population of these erythroblasts also express haemoglobin F (HbF), indicative of fetal definitive erythropoiesis. More notably however, we were able to demonstrate that a small sub-fraction of HbF positive erythroblasts co-expressed HbA in a highly heterogeneous manner, but analogous to cord blood-derived erythroblasts when cultured using similar methods. Moreover, the HbA expressing erythroblast population could be greatly enhanced (44·0 ± 6·04%) when a defined serum-free approach was employed to isolate a CD31(+) CD45(+) erythro-myeloid progenitor. These findings demonstrate that hiPSCs may represent a useful alternative to standard sources of erythrocytes (RBCs) for future applications in transfusion medicine.
Collapse
Affiliation(s)
- Cheng-Tao Yang
- Blood Research Laboratory, Radcliffe Department of Medicine, NHS Blood and Transplant and Nuffield Division of Clinical Laboratory Medicine, John Radcliffe Hospital, University of Oxford, Oxford, UK; Stem Cell Research Laboratory, Radcliffe Department of Medicine, NHS Blood and Transplant and Nuffield Division of Clinical Laboratory Medicine, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
43
|
Rasnayake D, Heywood P, Mettananda S, Belcher E, Black E. P-153VIDEO-ASSISTED THORACOSCOPIC LOBECTOMY FOR STAGES II AND III NON-SMALL CELL LUNG CANCER: COMPARISON OF OUTCOMES WITH STAGE I DISEASE. Interact Cardiovasc Thorac Surg 2013. [DOI: 10.1093/icvts/ivt288.153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
44
|
Mettananda S, Fernando AD, Ginige N. Posterior reversible encephalopathy syndrome in a survivor of valproate-induced acute liver failure: a case report. J Med Case Rep 2013; 7:144. [PMID: 23724918 PMCID: PMC3680161 DOI: 10.1186/1752-1947-7-144] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Accepted: 04/29/2013] [Indexed: 12/27/2022] Open
Abstract
Introduction Posterior reversible encephalopathy syndrome is an extremely rare radiological diagnosis that has not been reported previously in association with acute liver failure. Case presentation A 6-year-old Sri Lankan girl developed acute liver failure with severe hepatic encephalopathy due to sodium valproate. She was successfully treated medically with N-acetylcysteine and L-carnitine. During recovery she again developed features of encephalopathy and had repeated convulsions associated with moderate hypertension. The diagnosis of posterior reversible encephalopathy syndrome was made on clinical and radiological grounds and she showed a gradual improvement with control of blood pressure. Conclusions This report adds to the evidence behind treatment of valproate-induced acute liver failure with N-acetylcysteine and L-carnitine and illustrates a rare but interesting association between acute liver failure and posterior reversible encephalopathy syndrome.
Collapse
Affiliation(s)
- Sachith Mettananda
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, P,O, Box 6, Ragama, Sri Lanka.
| | | | | |
Collapse
|
45
|
Abstract
Constipation is a common childhood disease. It is associated with exposure to stressful events. Sri Lanka was involved in three decades of civil war causing significant emotional stress. This study assessed the prevalence of childhood constipation during and after war. Data were collected from 10- to 16-year olds in five randomly selected schools, in three provinces (two schools from Eastern province), using a validated, self-administered questionnaire. Constipation was diagnosed using Rome III criteria. Phase I was conducted during the war to liberate Eastern province from separatist groups. Phase II was conducted 2 years after the war in same schools. During Phase I, prevalence of constipation was significantly higher in Eastern province (18.1%) compared with Western (14.2%) and Southern (12.6%) provinces (p = 0.009). Constipation was significantly lower in Eastern province in Phase II (10%) compared with Phase I (p < 0.0001). This study highlights the possible link between devastating emotional effects of civil war and childhood constipation.
Collapse
Affiliation(s)
- Shaman Rajindrajith
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka
| | | | | |
Collapse
|
46
|
Abstract
A 4-month-old infant presented with continued fever, unresolving bronchopneumonia and household contact with sputum-smear-positive tuberculosis (TB) and showed marginal improvement on anti-TB chemotherapy. Recurrent pneumothorax prompted the clinical diagnosis of TB to be revised. High-resolution CT scan of the chest and open lung biopsy confirmed the diagnosis of pulmonary Langerhans cell histiocytosis. Treatment with prednisolone and vinblastin resulted in settling of fever and resolution of respiratory symptoms and signs. In communities where the prevalence of TB is high, unusual presentations should prompt consideration of alternative diagnoses.
Collapse
Affiliation(s)
- M P Senanayake
- Faculty of Medicine, University of Colombo, Colombo, Sri Lanka
| | | | | |
Collapse
|
47
|
Rajindrajith S, Mettananda S, Adihetti D, Goonawardana R, Devanarayana NM. Neonatal mortality in Sri Lanka: timing, causes and distribution. J Matern Fetal Neonatal Med 2009; 22:791-6. [PMID: 19526423 DOI: 10.3109/14767050902994549] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE To evaluate the timing, causes and distribution of neonatal deaths in Sri Lanka, to provide information for policy makers, to undertake appropriate measures to achieve the Millennium Development Goals. METHODS All neonatal deaths, reported to the Registrar General's Office, Sri Lanka, from 1997 to 2001, were included in the analysis. RESULTS During this 5-year period, 17,946 neonatal deaths have occurred, of them 90.5% have occurred during the first week of life. The leading causes were preterm deliveries (33.2%), infections (19.8%) and cardiac anomalies (17.4%). The neonatal mortality rates (NMR) were higher in districts with specialised neonatal care facilities and high concentration of estates. CONCLUSIONS Approximately 3600 neonates die in Sri Lanka annually, even though it has a lower NMR compared to rest of the South Asia. Neonatal deaths were higher in the major cities and in the estate sector. The majority of neonatal deaths were due to complications of preterm birth, neonatal sepsis and cardiac anomalies.
Collapse
Affiliation(s)
- Shaman Rajindrajith
- Faculty of Medicine, Department of Paediatrics, University of Kelaniya, Ragama, Sri Lanka.
| | | | | | | | | |
Collapse
|