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Kaazan P, Palmer AJ, Oliver K, Burger D, Segal J, Chao CY, Martin N. Primary intestinal Cytomegalovirus infection in a patient with severe ulcerative colitis. Intern Med J 2023; 53:875-876. [PMID: 37222094 DOI: 10.1111/imj.16097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Accepted: 03/13/2023] [Indexed: 05/25/2023]
Affiliation(s)
- Patricia Kaazan
- Department of Gastroenterology and Hepatology, The Princess Alexandra Hospital, Brisbane, Queensland, Australia
- Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
- Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, South Australia, Australia
| | - Andrew J Palmer
- Department of Gastroenterology and Hepatology, The Princess Alexandra Hospital, Brisbane, Queensland, Australia
- Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | - Kimberley Oliver
- Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
- Department of Anatomical Pathology, The Princess Alexandra Hospital, Brisbane, Queensland, Australia
| | - Daniel Burger
- Department of Gastroenterology and Hepatology, The Princess Alexandra Hospital, Brisbane, Queensland, Australia
- Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | - Jonathan Segal
- Faculty of Medicine, The University of Melbourne, Melbourne, Victoria, Australia
| | - Che-Yung Chao
- Department of Gastroenterology and Hepatology, The Princess Alexandra Hospital, Brisbane, Queensland, Australia
- Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | - Neal Martin
- Department of Gastroenterology and Hepatology, The Princess Alexandra Hospital, Brisbane, Queensland, Australia
- Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
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Otten LS, Heine RT, Chiong J, Martin J, van den Heuvel M, Piet B, Burger D. EP08.02-090 Sotorasib Drug-Drug Interactions: Essential Guidance Requested by Physicians Worldwide. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.773] [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: 10/14/2022]
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Giraud E, Chiong J, Martin J, Burger D, Erp N, Smolders E. 1595P QTc-prolonging drug-drug interactions related to CDK4/6 inhibitors. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1688] [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: 11/28/2022] Open
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Hoffmann A, Spiegel S, Burger D, Klemens J, Scharfer P, Schabel W. About the slot die coating process of lithium‐ion battery electrodes with regard to an optimized layer structure and edge quality. CHEM-ING-TECH 2022. [DOI: 10.1002/cite.202255273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- A. Hoffmann
- Karlsruhe Institute of Technology Thin Film Technology Straße am Forum 7 76131 Karlsruhe Germany
| | - S. Spiegel
- Karlsruhe Institute of Technology Thin Film Technology Straße am Forum 7 76131 Karlsruhe Germany
| | - D. Burger
- Karlsruhe Institute of Technology Thin Film Technology Straße am Forum 7 76131 Karlsruhe Germany
| | - J. Klemens
- Karlsruhe Institute of Technology Thin Film Technology Straße am Forum 7 76131 Karlsruhe Germany
| | - P. Scharfer
- Karlsruhe Institute of Technology Thin Film Technology Straße am Forum 7 76131 Karlsruhe Germany
| | - W. Schabel
- Karlsruhe Institute of Technology Thin Film Technology Straße am Forum 7 76131 Karlsruhe Germany
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Burger D, Hoffmann A, Klemens J, Scharfer P, Schabel W. Optimizing the production of Li‐ion batteries: Efficient drying of electrodes and savings by multilayer approach. CHEM-ING-TECH 2022. [DOI: 10.1002/cite.202255278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- D. Burger
- Karlsruhe Institute of Technology (KIT) Thin Film Technology (TFT) Straße am Forum 7 76131 Karlsruhe Germany
| | - A. Hoffmann
- Karlsruhe Institute of Technology (KIT) Thin Film Technology (TFT) Straße am Forum 7 76131 Karlsruhe Germany
| | - J. Klemens
- Karlsruhe Institute of Technology (KIT) Thin Film Technology (TFT) Straße am Forum 7 76131 Karlsruhe Germany
| | - P. Scharfer
- Karlsruhe Institute of Technology (KIT) Thin Film Technology (TFT) Straße am Forum 7 76131 Karlsruhe Germany
| | - W. Schabel
- Karlsruhe Institute of Technology (KIT) Thin Film Technology (TFT) Straße am Forum 7 76131 Karlsruhe Germany
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Donatsch L, Friker B, Sieme H, Kaeser R, Burger D. No increase in pregnancy rate of mares after preovulatory deep uterine horn application of misoprostol. Theriogenology 2022; 184:132-139. [DOI: 10.1016/j.theriogenology.2022.03.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 02/09/2022] [Accepted: 03/07/2022] [Indexed: 10/18/2022]
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Wymant C, Bezemer D, Blanquart F, Ferretti L, Gall A, Hall M, Golubchik T, Bakker M, Ong SH, Zhao L, Bonsall D, de Cesare M, MacIntyre-Cockett G, Abeler-Dörner L, Albert J, Bannert N, Fellay J, Grabowski MK, Gunsenheimer-Bartmeyer B, Günthard HF, Kivelä P, Kouyos RD, Laeyendecker O, Meyer L, Porter K, Ristola M, van Sighem A, Berkhout B, Kellam P, Cornelissen M, Reiss P, Fraser C, Aubert V, Battegay M, Bernasconi E, Böni J, Braun DL, Bucher HC, Burton-Jeangros C, Calmy A, Cavassini M, Dollenmaier G, Egger M, Elzi L, Fehr J, Fellay J, Furrer H, Fux CA, Gorgievski M, Günthard H, Haerry D, Hasse B, Hirsch HH, Hoffmann M, Hösli I, Kahlert C, Kaiser L, Keiser O, Klimkait T, Kouyos R, Kovari H, Ledergerber B, Martinetti G, de Tejada BM, Marzolini C, Metzner K, Müller N, Nadal D, Nicca D, Pantaleo G, Rauch A, Regenass S, Rudin C, Schöni-Affolter F, Schmid P, Speck R, Stöckle M, Tarr P, Trkola A, Vernazza P, Weber R, Yerly S, van der Valk M, Geerlings SE, Goorhuis A, Hovius JW, Lempkes B, Nellen FJB, van der Poll T, Prins JM, Reiss P, van Vugt M, Wiersinga WJ, Wit FWMN, van Duinen M, van Eden J, Hazenberg A, van Hes AMH, Rajamanoharan S, Robinson T, Taylor B, Brewer C, Mayr C, Schmidt W, Speidel A, Strohbach F, Arastéh K, Cordes C, Pijnappel FJJ, Stündel M, Claus J, Baumgarten A, Carganico A, Ingiliz P, Dupke S, Freiwald M, Rausch M, Moll A, Schleehauf D, Smalhout SY, Hintsche B, Klausen G, Jessen H, Jessen A, Köppe S, Kreckel P, Schranz D, Fischer K, Schulbin H, Speer M, Weijsenfeld AM, Glaunsinger T, Wicke T, Bieniek B, Hillenbrand H, Schlote F, Lauenroth-Mai E, Schuler C, Schürmann D, Wesselmann H, Brockmeyer N, Jurriaans S, Gehring P, Schmalöer D, Hower M, Spornraft-Ragaller P, Häussinger D, Reuter S, Esser S, Markus R, Kreft B, Berzow D, Back NKT, Christl A, Meyer A, Plettenberg A, Stoehr A, Graefe K, Lorenzen T, Adam A, Schewe K, Weitner L, Fenske S, Zaaijer HL, Hansen S, Stellbrink HJ, Wiemer D, Hertling S, Schmidt R, Arbter P, Claus B, Galle P, Jäger H, Jä Gel-Guedes E, Berkhout B, Postel N, Fröschl M, Spinner C, Bogner J, Salzberger B, Schölmerich J, Audebert F, Marquardt T, Schaffert A, Schnaitmann E, Cornelissen MTE, Trein A, Frietsch B, Müller M, Ulmer A, Detering-Hübner B, Kern P, Schubert F, Dehn G, Schreiber M, Güler C, Schinkel CJ, Gunsenheimer-Bartmeyer B, Schmidt D, Meixenberger K, Bannert N, Wolthers KC, Peters EJG, van Agtmael MA, Autar RS, Bomers M, Sigaloff KCE, Heitmuller M, Laan LM, Ang CW, van Houdt R, Jonges M, Kuijpers TW, Pajkrt D, Scherpbier HJ, de Boer C, van der Plas A, van den Berge M, Stegeman A, Baas S, Hage de Looff L, Buiting A, Reuwer A, Veenemans J, Wintermans B, Pronk MJH, Ammerlaan HSM, van den Bersselaar DNJ, de Munnik ES, Deiman B, Jansz AR, Scharnhorst V, Tjhie J, Wegdam MCA, van Eeden A, Nellen J, Brokking W, Elsenburg LJM, Nobel H, van Kasteren MEE, Berrevoets MAH, Brouwer AE, Adams A, van Erve R, de Kruijf-van de Wiel BAFM, Keelan-Phaf S, van de Ven B, van der Ven B, Buiting AGM, Murck JL, de Vries-Sluijs TEMS, Bax HI, van Gorp ECM, de Jong-Peltenburg NC, de Mendonç A Melo M, van Nood E, Nouwen JL, Rijnders BJA, Rokx C, Schurink CAM, Slobbe L, Verbon A, Bassant N, van Beek JEA, Vriesde M, van Zonneveld LM, de Groot J, Boucher CAB, Koopmans MPG, van Kampen JJA, Fraaij PLA, van Rossum AMC, Vermont CL, van der Knaap LC, Visser E, Branger J, Douma RA, Cents-Bosma AS, Duijf-van de Ven CJHM, Schippers EF, van Nieuwkoop C, van Ijperen JM, Geilings J, van der Hut G, van Burgel ND, Leyten EMS, Gelinck LBS, Mollema F, Davids-Veldhuis S, Tearno C, Wildenbeest GS, Heikens E, Groeneveld PHP, Bouwhuis JW, Lammers AJJ, Kraan S, van Hulzen AGW, Kruiper MSM, van der Bliek GL, Bor PCJ, Debast SB, Wagenvoort GHJ, Kroon FP, de Boer MGJ, Jolink H, Lambregts MMC, Roukens AHE, Scheper H, Dorama W, van Holten N, Claas ECJ, Wessels E, den Hollander JG, El Moussaoui R, Pogany K, Brouwer CJ, Smit JV, Struik-Kalkman D, van Niekerk T, Pontesilli O, Lowe SH, Oude Lashof AML, Posthouwer D, van Wolfswinkel ME, Ackens RP, Burgers K, Schippers J, Weijenberg-Maes B, van Loo IHM, Havenith TRA, van Vonderen MGA, Kampschreur LM, Faber S, Steeman-Bouma R, Al Moujahid A, Kootstra GJ, Delsing CE, van der Burg-van de Plas M, Scheiberlich L, Kortmann W, van Twillert G, Renckens R, Ruiter-Pronk D, van Truijen-Oud FA, Cohen Stuart JWT, Jansen ER, Hoogewerf M, Rozemeijer W, van der Reijden WA, Sinnige JC, Brinkman K, van den Berk GEL, Blok WL, Lettinga KD, de Regt M, Schouten WEM, Stalenhoef JE, Veenstra J, Vrouenraets SME, Blaauw H, Geerders GF, Kleene MJ, Kok M, Knapen M, van der Meché IB, Mulder-Seeleman E, Toonen AJM, Wijnands S, Wttewaal E, Kwa D, van Crevel R, van Aerde K, Dofferhoff ASM, Henriet SSV, Ter Hofstede HJM, Hoogerwerf J, Keuter M, Richel O, Albers M, Grintjes-Huisman KJT, de Haan M, Marneef M, Strik-Albers R, Rahamat-Langendoen J, Stelma FF, Burger D, Gisolf EH, Hassing RJ, Claassen M, Ter Beest G, van Bentum PHM, Langebeek N, Tiemessen R, Swanink CMA, van Lelyveld SFL, Soetekouw R, van der Prijt LMM, van der Swaluw J, Bermon N, van der Reijden WA, Jansen R, Herpers BL, Veenendaal D, Verhagen DWM, Lauw FN, van Broekhuizen MC, van Wijk M, Bierman WFW, Bakker M, Kleinnijenhuis J, Kloeze E, Middel A, Postma DF, Schölvinck EH, Stienstra Y, Verhage AR, Wouthuyzen-Bakker M, Boonstra A, de Groot-de Jonge H, van der Meulen PA, de Weerd DA, Niesters HGM, van Leer-Buter CC, Knoester M, Hoepelman AIM, Arends JE, Barth RE, Bruns AHW, Ellerbroek PM, Mudrikova T, Oosterheert JJ, Schadd EM, van Welzen BJ, Aarsman K, Griffioen-van Santen BMG, de Kroon I, van Berkel M, van Rooijen CSAM, Schuurman R, Verduyn-Lunel F, Wensing AMJ, Bont LJ, Geelen SPM, Loeffen YGT, Wolfs TFW, Nauta N, Rooijakkers EOW, Holtsema H, Voigt R, van de Wetering D, Alberto A, van der Meer I, Rosingh A, Halaby T, Zaheri S, Boyd AC, Bezemer DO, van Sighem AI, Smit C, Hillebregt M, de Jong A, Woudstra T, Bergsma D, Meijering R, van de Sande L, Rutkens T, van der Vliet S, de Groot L, van den Akker M, Bakker Y, El Berkaoui A, Bezemer M, Brétin N, Djoechro E, Groters M, Kruijne E, Lelivelt KJ, Lodewijk C, Lucas E, Munjishvili L, Paling F, Peeck B, Ree C, Regtop R, Ruijs Y, Schoorl M, Schnörr P, Scheigrond A, Tuijn E, Veenenberg L, Visser KM, Witte EC, Ruijs Y, Van Frankenhuijsen M, Allegre T, Makhloufi D, Livrozet JM, Chiarello P, Godinot M, Brunel-Dalmas F, Gibert S, Trepo C, Peyramond D, Miailhes P, Koffi J, Thoirain V, Brochier C, Baudry T, Pailhes S, Lafeuillade A, Philip G, Hittinger G, Assi A, Lambry V, Rosenthal E, Naqvi A, Dunais B, Cua E, Pradier C, Durant J, Joulie A, Quinsat D, Tempesta S, Ravaux I, Martin IP, Faucher O, Cloarec N, Champagne H, Pichancourt G, Morlat P, Pistone T, Bonnet F, Mercie P, Faure I, Hessamfar M, Malvy D, Lacoste D, Pertusa MC, Vandenhende MA, Bernard N, Paccalin F, Martell C, Roger-Schmelz J, Receveur MC, Duffau P, Dondia D, Ribeiro E, Caltado S, Neau D, Dupont M, Dutronc H, Dauchy F, Cazanave C, Vareil MO, Wirth G, Le Puil S, Pellegrin JL, Raymond I, Viallard JF, Chaigne de Lalande S, Garipuy D, Delobel P, Obadia M, Cuzin L, Alvarez M, Biezunski N, Porte L, Massip P, Debard A, Balsarin F, Lagarrigue M, Prevoteau du Clary F, Aquilina C, Reynes J, Baillat V, Merle C, Lemoing V, Atoui N, Makinson A, Jacquet JM, Psomas C, Tramoni C, Aumaitre H, Saada M, Medus M, Malet M, Eden A, Neuville S, Ferreyra M, Sotto A, Barbuat C, Rouanet I, Leureillard D, Mauboussin JM, Lechiche C, Donsesco R, Cabie A, Abel S, Pierre-Francois S, Batala AS, Cerland C, Rangom C, Theresine N, Hoen B, Lamaury I, Fabre I, Schepers K, Curlier E, Ouissa R, Gaud C, Ricaud C, Rodet R, Wartel G, Sautron C, Beck-Wirth G, Michel C, Beck C, Halna JM, Kowalczyk J, Benomar M, Drobacheff-Thiebaut C, Chirouze C, Faucher JF, Parcelier F, Foltzer A, Haffner-Mauvais C, Hustache Mathieu M, Proust A, Piroth L, Chavanet P, Duong M, Buisson M, Waldner A, Mahy S, Gohier S, Croisier D, May T, Delestan M, Andre M, Zadeh MM, Martinot M, Rosolen B, Pachart A, Martha B, Jeunet N, Rey D, Cheneau C, Partisani M, Priester M, Bernard-Henry C, Batard ML, Fischer P, Berger JL, Kmiec I, Robineau O, Huleux T, Ajana F, Alcaraz I, Allienne C, Baclet V, Meybeck A, Valette M, Viget N, Aissi E, Biekre R, Cornavin P, Merrien D, Seghezzi JC, Machado M, Diab G, Raffi F, Bonnet B, Allavena C, Grossi O, Reliquet V, Billaud E, Brunet C, Bouchez S, Morineau-Le Houssine P, Sauser F, Boutoille D, Besnier M, Hue H, Hall N, Brosseau D, Souala F, Michelet C, Tattevin P, Arvieux C, Revest M, Leroy H, Chapplain JM, Dupont M, Fily F, Patra-Delo S, Lefeuvre C, Bernard L, Bastides F, Nau P, Verdon R, de la Blanchardiere A, Martin A, Feret P, Geffray L, Daniel C, Rohan J, Fialaire P, Chennebault JM, Rabier V, Abgueguen P, Rehaiem S, Luycx O, Niault M, Moreau P, Poinsignon Y, Goussef M, Mouton-Rioux V, Houlbert D, Alvarez-Huve S, Barbe F, Haret S, Perre P, Leantez-Nainville S, Esnault JL, Guimard T, Suaud I, Girard JJ, Simonet V, Debab Y, Schmit JL, Jacomet C, Weinberck P, Genet C, Pinet P, Ducroix S, Durox H, Denes É, Abraham B, Gourdon F, Antoniotti O, Molina JM, Ferret S, Lascoux-Combe C, Lafaurie M, Colin de Verdiere N, Ponscarme D, De Castro N, Aslan A, Rozenbaum W, Pintado C, Clavel F, Taulera O, Gatey C, Munier AL, Gazaigne S, Penot P, Conort G, Lerolle N, Leplatois A, Balausine S, Delgado J, Timsit J, Tabet M, Gerard L, Girard PM, Picard O, Tredup J, Bollens D, Valin N, Campa P, Bottero J, Lefebvre B, Tourneur M, Fonquernie L, Wemmert C, Lagneau JL, Yazdanpanah Y, Phung B, Pinto A, Vallois D, Cabras O, Louni F, Pialoux G, Lyavanc T, Berrebi V, Chas J, Lenagat S, Rami A, Diemer M, Parrinello M, Depond A, Salmon D, Guillevin L, Tahi T, Belarbi L, Loulergue P, Zak Dit Zbar O, Launay O, Silbermann B, Leport C, Alagna L, Pietri MP, Simon A, Bonmarchand M, Amirat N, Pichon F, Kirstetter M, Katlama C, Valantin MA, Tubiana R, Caby F, Schneider L, Ktorza N, Calin R, Merlet A, Ben Abdallah S, Weiss L, Buisson M, Batisse D, Karmochine M, Pavie J, Minozzi C, Jayle D, Castel P, Derouineau J, Kousignan P, Eliazevitch M, Pierre I, Collias L, Viard JP, Gilquin J, Sobel A, Slama L, Ghosn J, Hadacek B, Thu-Huyn N, Nait-Ighil L, Cros A, Maignan A, Duvivier C, Consigny PH, Lanternier F, Shoai-Tehrani M, Touam F, Jerbi S, Bodard L, Jung C, Goujard C, Quertainmont Y, Duracinsky M, Segeral O, Blanc A, Peretti D, Cheret A, Chantalat C, Dulucq MJ, Levy Y, Lelievre JD, Lascaux AS, Dumont C, Boue F, Chambrin V, Abgrall S, Kansau I, Raho-Moussa M, De Truchis P, Dinh A, Davido B, Marigot D, Berthe H, Devidas A, Chevojon P, Chabrol A, Agher N, Lemercier Y, Chaix F, Turpault I, Bouchaud O, Honore P, Rouveix E, Reimann E, Belan AG, Godin Collet C, Souak S, Mortier E, Bloch M, Simonpoli AM, Manceron V, Cahitte I, Hiraux E, Lafon E, Cordonnier F, Zeng AF, Zucman D, Majerholc C, Bornarel D, Uludag A, Gellen-Dautremer J, Lefort A, Bazin C, Daneluzzi V, Gerbe J, Jeantils V, Coupard M, Patey O, Bantsimba J, Delllion S, Paz PC, Cazenave B, Richier L, Garrait V, Delacroix I, Elharrar B, Vittecoq D, Bolliot C, Lepretre A, Genet P, Masse V, Perrone V, Boussard JL, Chardon P, Froguel E, Simon P, Tassi S, Avettand Fenoel V, Barin F, Bourgeois C, Cardon F, Chaix ML, Delfraissy JF, Essat A, Fischer H, Lecuroux C, Meyer L, Petrov-Sanchez V, Rouzioux C, Saez-Cirion A, Seng R, Kuldanek K, Mullaney S, Young C, Zucchetti A, Bevan MA, McKernan S, Wandolo E, Richardson C, Youssef E, Green P, Faulkner S, Faville R, Herman S, Care C, Blackman H, Bellenger K, Fairbrother K, Phillips A, Babiker A, Delpech V, Fidler S, Clarke M, Fox J, Gilson R, Goldberg D, Hawkins D, Johnson A, Johnson M, McLean K, Nastouli E, Post F, Kennedy N, Pritchard J, Andrady U, Rajda N, Donnelly C, McKernan S, Drake S, Gilleran G, White D, Ross J, Harding J, Faville R, Sweeney J, Flegg P, Toomer S, Wilding H, Woodward R, Dean G, Richardson C, Perry N, Gompels M, Jennings L, Bansaal D, Browing M, Connolly L, Stanley B, Estreich S, Magdy A, O'Mahony C, Fraser P, Jebakumar SPR, David L, Mette R, Summerfield H, Evans M, White C, Robertson R, Lean C, Morris S, Winter A, Faulkner S, Goorney B, Howard L, Fairley I, Stemp C, Short L, Gomez M, Young F, Roberts M, Green S, Sivakumar K, Minton J, Siminoni A, Calderwood J, Greenhough D, DeSouza C, Muthern L, Orkin C, Murphy S, Truvedi M, McLean K, Hawkins D, Higgs C, Moyes A, Antonucci S, McCormack S, Lynn W, Bevan M, Fox J, Teague A, Anderson J, Mguni S, Post F, Campbell L, Mazhude C, Russell H, Gilson R, Carrick G, Ainsworth J, Waters A, Byrne P, Johnson M, Fidler S, Kuldanek K, Mullaney S, Lawlor V, Melville R, Sukthankar A, Thorpe S, Murphy C, Wilkins E, Ahmad S, Green P, Tayal S, Ong E, Meaden J, Riddell L, Loay D, Peacock K, Blackman H, Harindra V, Saeed AM, Allen S, Natarajan U, Williams O, Lacey H, Care C, Bowman C, Herman S, Devendra SV, Wither J, Bridgwood A, Singh G, Bushby S, Kellock D, Young S, Rooney G, Snart B, Currie J, Fitzgerald M, Arumainayyagam J, Chandramani S. A highly virulent variant of HIV-1 circulating in the Netherlands. Science 2022; 375:540-545. [PMID: 35113714 DOI: 10.1126/science.abk1688] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We discovered a highly virulent variant of subtype-B HIV-1 in the Netherlands. One hundred nine individuals with this variant had a 0.54 to 0.74 log10 increase (i.e., a ~3.5-fold to 5.5-fold increase) in viral load compared with, and exhibited CD4 cell decline twice as fast as, 6604 individuals with other subtype-B strains. Without treatment, advanced HIV-CD4 cell counts below 350 cells per cubic millimeter, with long-term clinical consequences-is expected to be reached, on average, 9 months after diagnosis for individuals in their thirties with this variant. Age, sex, suspected mode of transmission, and place of birth for the aforementioned 109 individuals were typical for HIV-positive people in the Netherlands, which suggests that the increased virulence is attributable to the viral strain. Genetic sequence analysis suggests that this variant arose in the 1990s from de novo mutation, not recombination, with increased transmissibility and an unfamiliar molecular mechanism of virulence.
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Affiliation(s)
- Chris Wymant
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | | | - François Blanquart
- Centre for Interdisciplinary Research in Biology (CIRB), Collège de France, CNRS, INSERM, PSL Research University, Paris, France.,IAME, UMR 1137, INSERM, Université de Paris, Paris, France
| | - Luca Ferretti
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Astrid Gall
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Genome Campus, Hinxton, Cambridge, UK
| | - Matthew Hall
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Tanya Golubchik
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Margreet Bakker
- Laboratory of Experimental Virology, Department of Medical Microbiology and Infection Prevention, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands
| | - Swee Hoe Ong
- Wellcome Sanger Institute, Wellcome Genome Campus, Cambridge, UK
| | - Lele Zhao
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - David Bonsall
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, Nuffield Department of Medicine, University of Oxford, Oxford, UK.,Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Mariateresa de Cesare
- Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - George MacIntyre-Cockett
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, Nuffield Department of Medicine, University of Oxford, Oxford, UK.,Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Lucie Abeler-Dörner
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Jan Albert
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden.,Department of Clinical Microbiology, Karolinska University Hospital, Stockholm, Sweden
| | - Norbert Bannert
- Division for HIV and Other Retroviruses, Department of Infectious Diseases, Robert Koch Institute, Berlin, Germany
| | - Jacques Fellay
- School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.,Swiss Institute of Bioinformatics, Lausanne, Switzerland.,Precision Medicine Unit, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - M Kate Grabowski
- Department of Pathology, John Hopkins University, Baltimore, MD, USA
| | | | - Huldrych F Günthard
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, Zurich, Switzerland.,Institute of Medical Virology, University of Zurich, Zurich, Switzerland
| | - Pia Kivelä
- Department of Infectious Diseases, Helsinki University Hospital, Helsinki, Finland
| | - Roger D Kouyos
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, Zurich, Switzerland.,Institute of Medical Virology, University of Zurich, Zurich, Switzerland
| | | | - Laurence Meyer
- INSERM CESP U1018, Université Paris Saclay, APHP, Service de Santé Publique, Hôpital de Bicêtre, Le Kremlin-Bicêtre, France
| | - Kholoud Porter
- Institute for Global Health, University College London, London, UK
| | - Matti Ristola
- Department of Infectious Diseases, Helsinki University Hospital, Helsinki, Finland
| | | | - Ben Berkhout
- Laboratory of Experimental Virology, Department of Medical Microbiology and Infection Prevention, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands
| | - Paul Kellam
- Kymab Ltd., Cambridge, UK.,Department of Infectious Diseases, Faculty of Medicine, Imperial College London, London, UK
| | - Marion Cornelissen
- Laboratory of Experimental Virology, Department of Medical Microbiology and Infection Prevention, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands.,Molecular Diagnostic Unit, Department of Medical Microbiology and Infection Prevention, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands
| | - Peter Reiss
- Stichting HIV Monitoring, Amsterdam, Netherlands.,Department of Global Health, Amsterdam University Medical Centers, University of Amsterdam and Amsterdam Institute for Global Health and Development, Amsterdam, Netherlands
| | - Christophe Fraser
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, Nuffield Department of Medicine, University of Oxford, Oxford, UK.,Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, UK
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8
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Lugo Gavidia LM, Burger D, Robinson S, Nolde J, Carnagarin R, Matthews VB, Schlaich MP. Circulating extracellular vesicles correlate with nocturnal blood pressure and vascular organ damage and may serve as an integrative biomarker of vascular health. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehab849.144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public Institution(s). Main funding source(s): National Council on Science and Technology, Mexico (CONACYT).
Background
Elevated blood pressure (BP) has been associated with increased levels of circulating extracellular vesicles (EVs) which could potentially serve as a novel integrative biomarker for vascular health.
Purpose
The present study therefore aimed to assess the relationship between increased EV release, blood pressure and macrovascular organ damage.
Methods
A total of 83 patients with BP ranging from normal to high were included in the present analysis. Extracellular vesicles were evaluated by flow cytometry (CD41+/Annexin v+). BP evaluation included unobserved automated office BP (AOBP) and ambulatory BP monitoring (24hr-BP, day-BP and night-BP). Carotid-femoral pulse wave velocity (PWV) was measured by the SphygmoCor XCEL as a marker of macrovascular organ damage.
Results
Hypertensive patients (n = 73, BP 132.9 ± 17.4/79.4 ± 14.0) compared to normotensive patients (n = 10, BP 113.4 ± 10.4/71.3 ± 9.6) had higher levels of EVs (10.6 ± 8.2 vs 6.5 ± 4.5 EV/µL; p = 0.02). Circulating EVs were positively correlated with nocturnal systolic BP (r= 0.3; p = 0.01) and night-time dipping (r= -0.26; p = 0.02) in univariable analysis. In contrast, systolic AOBP, 24hr-BP and day-BP did not show significant associations. No significant correlations were found with diastolic BP. EVs were significantly correlated with PWV (r = 0.26 p = 0.02).While all BP measures were associated with PWV, average systolic night-time BP demonstrated the strongest correlation with PWV (r = 0.55; p < 0.001) compared to systolic AOBP (r = 0.51; p < 0.001), 24hr-BP (r = 0.46; p < 0.001), and average day-BP (r = 0.48; p < 0.001). Multivariable regression models confirmed robustness of the models.
Conclusion
We demonstrate a close positive relationship between a variety of BP measures and levels of circulating EVs as well as macrovascular damage assessed by PWV. The strongest correlation with EVs was found for average systolic nocturnal BP. Given that average nocturnal BP is the strongest predictor of CV events, EVs may serve as a useful integrative marker of vascular health and useful biomarker for CV risk assessment, a proposition that will need to be tested in prospective clinical trials. Abstract Figure.
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Affiliation(s)
- L M Lugo Gavidia
- Royal Perth Hospital Unit-Medical Research Foundation; The University of Western Australia, Dobney Hypertension Center, Perth, Australia
| | - D Burger
- The Ottawa Hospital Research Institute, Ottawa, Canada
| | - S Robinson
- Royal Perth Hospital Unit-Medical Research Foundation; The University of Western Australia, Dobney Hypertension Center, Perth, Australia
| | - J Nolde
- Royal Perth Hospital Unit-Medical Research Foundation; The University of Western Australia, Dobney Hypertension Center, Perth, Australia
| | - R Carnagarin
- Royal Perth Hospital Unit-Medical Research Foundation; The University of Western Australia, Dobney Hypertension Center, Perth, Australia
| | - V B Matthews
- Royal Perth Hospital Unit-Medical Research Foundation; The University of Western Australia, Dobney Hypertension Center, Perth, Australia
| | - M P Schlaich
- Royal Perth Hospital Unit-Medical Research Foundation; The University of Western Australia, Dobney Hypertension Center, Perth, Australia
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9
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Fouché N, Gerber V, Bruckmaier RM, Erni-Wespi B, Zander Y, Vidondo B, Sieme H, Claes A, Kaeser R, Burger D. Assessment of anti-Müllerian hormone in mares' transitional period and in relation to fertility in elderly mares. Theriogenology 2022; 179:97-102. [PMID: 34864361 DOI: 10.1016/j.theriogenology.2021.11.025] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 11/24/2021] [Accepted: 11/29/2021] [Indexed: 11/23/2022]
Abstract
Anti-Müllerian Hormone (AMH) has been linked to reproductive tract abnormalities in mares and stallions. This study aimed at evaluating AMH as a biomarker for two reproductive conditions in mares. In the first part of this study, plasma AMH was evaluated as an early indicator of the onset of cyclicity in mares in the transitional period from the anovulatory phase during winter anoestrus to the cyclic phase during the breeding season. Ten mares between 8 and 17 years old were included in the experiment which lasted from mid-February until the end of April. Ovarian activity was monitored with ultrasonography three times per week, the detection of a corpus haemorrhagicum/luteum was documented and antral follicle counts (AFC) were recorded. Blood samples were collected weekly by jugular venipuncture during the whole study period to compare AMH concentrations before and after the first ovulation of the year. The second objective was to evaluate if plasma AMH concentrations in middle-aged mares are linked to fertility and could serve as a prognostic marker in that age group. A total of 41 privately-owned clinically sound mares aged between 12 and 21 years of various breeds were inseminated with fresh or frozen semen. Mares were scanned between day 14 and 20 and the "early pregnancy rate" included only positive pregnancy examinations after the first observed cycle in the season of each mare. Potential associations between the early pregnancy rate in the first cycle and the explanatory factors AMH concentrations, age, status of the mare, stud, development of post-breeding endometritis, number of inseminations and semen type were analysed using logistic regression models. In the first part of the study, correlation between AMH and AFC for the whole study period (P = 0.0002, ρ = 0.55) as well as prior to (P = 0.008, ρ = 0.58) and after the first ovulation (P = 0.0007, ρ = 0.69) were observed. However, AMH concentrations before and after the first ovulation of the year were not statistically different. The second part of the study revealed no association between early pregnancy rate and AMH concentrations or any of the other mentioned factors. In conclusion, this study showed no evidence of a difference between AMH concentrations before and after the first ovulation of the year thus not supporting the use of AMH as a biomarker to predict the onset of cyclicity in mares. We could furthermore not show a relationship between plasma AMH concentrations and early pregnancy rates in this cohort of animals.
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Affiliation(s)
- N Fouché
- Swiss Institute of Equine Medicine, University of Bern, and Agroscope, Bern, Avenches, Switzerland
| | - V Gerber
- Swiss Institute of Equine Medicine, University of Bern, and Agroscope, Bern, Avenches, Switzerland
| | - R M Bruckmaier
- Veterinary Physiology, Vetsuisse Faculty, University of Bern, Switzerland
| | - B Erni-Wespi
- Swiss Institute of Equine Medicine, University of Bern, and Agroscope, Bern, Avenches, Switzerland
| | - Y Zander
- Haupt- und Landgestüt Marbach, Gomadingen, Germany
| | - B Vidondo
- Veterinary Public Health Institute, University of Bern, Switzerland
| | - H Sieme
- Clinic for Horses - Unit for Reproductive Medicine, University of Veterinary Medicine Hannover, Germany
| | - A Claes
- Faculty of Veterinary Medicine, Utrecht University, the Netherlands
| | - R Kaeser
- Swiss Institute of Equine Medicine, University of Bern, and Agroscope, Bern, Avenches, Switzerland
| | - D Burger
- Swiss Institute of Equine Medicine, University of Bern, and Agroscope, Bern, Avenches, Switzerland.
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10
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Tönißen A, Müller-Stephan L, Tiedemann D, Gentz J, Martinsson G, Köhne M, Burger D, Sieme H. Cap assisted hysteroscopy enables retrograde catheterization and hydrotubation of the equine oviduct. PFERDEHEILKUNDE 2022. [DOI: 10.21836/pem20220101] [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: 11/27/2022]
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11
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Burger D, Feucht M, Muench LN, Forkel P, Imhoff AB, Mehl J. Good clinical outcomes after patellar cartilage repair with no evidence for inferior results in complex cases with the need for additional patellofemoral realignment procedures: a systematic review. Knee Surg Sports Traumatol Arthrosc 2022; 30:1752-1768. [PMID: 34510221 PMCID: PMC9033684 DOI: 10.1007/s00167-021-06728-z] [Citation(s) in RCA: 2] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 08/30/2021] [Indexed: 12/28/2022]
Abstract
PURPOSE Focal, patellar cartilage defects are a challenging problem as most cases have an underlying multifactorial pathogenesis. This systematic review of current literature analysed clinical results after regenerative cartilage repair of the patella with a special focus on the assessment and treatment of existing patellofemoral malalignment. METHODS A systematic review was conducted to identify articles reporting clinical results after cartilage regenerative surgeries of the patella using the PubMed and Scopus database. The extracted data included patient-reported outcome measures (PROMS) and whether cartilage repair was performed alone or in combination with concomitant surgeries of underlying patellofemoral co-pathologies. In cases of isolated cartilage repair, specific exclusion criteria regarding underlying co-pathologies were screened. In cases of concomitant surgeries, the type of surgeries and their specific indications were extracted. RESULTS A total of 35 original articles were included out of which 27 (77%) were cohort studies with level IV evidence. The most frequently used technique for cartilage restoration of the patella was autologous chondrocyte implantation (ACI). Results after isolated cartilage repair alone were reported by 15 (43%) studies. Of those studies, 9 (60%) excluded patients with underlying patellofemoral malalignment a priori and 6 (40%) did not analyse underlying co-pathologies at all. Among the studies including combined surgeries, the most frequently reported concomitant procedures were release of the lateral retinaculum, reconstruction of the medial patellofemoral ligament (MPFL), and osteotomy of the tibial tubercle. In summary, these studies showed lower preoperative PROMS but similar final PROMS in comparison with the studies reporting on isolated cartilage repair. The most frequently used PROMS were the IKDC-, Lysholm- and the Modified Cincinnati Score. CONCLUSION This comprehensive literature review demonstrated good clinical outcomes after patellar cartilage repair with no evidence of minor results even in complex cases with the need for additional patellofemoral realignment procedures. However, a meaningful statistical comparison between isolated patellar cartilage repair and combined co-procedures is not possible due to very heterogeneous patient cohorts and a lack of analysis of specific subgroups in recent literature. LEVEL OF EVIDENCE Level IV.
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Affiliation(s)
- Daniel Burger
- grid.6936.a0000000123222966Department for Orthopedic Sports Medicine, Technical University Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Matthias Feucht
- Department of Orthopaedic Surgery, Paulinenhilfe, Diakonieklinikum, Stuttgart, Germany
| | - Lukas N. Muench
- grid.6936.a0000000123222966Department for Orthopedic Sports Medicine, Technical University Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Philipp Forkel
- grid.6936.a0000000123222966Department for Orthopedic Sports Medicine, Technical University Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Andreas B. Imhoff
- grid.6936.a0000000123222966Department for Orthopedic Sports Medicine, Technical University Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Julian Mehl
- Department for Orthopedic Sports Medicine, Technical University Munich, Ismaninger Str. 22, 81675, Munich, Germany.
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12
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Erdbrügger U, Blijdorp C, Llorente A, Martens-Uzunova E, Musante L, Burger D. A survey of current trends in urinary extracellular vesicle research. EUR UROL SUPPL 2021. [DOI: 10.1016/s2666-1683(21)01194-0] [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: 10/20/2022] Open
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13
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Abstract
INTRODUCTION The breeding of a healthy horse is the basic requirement for optimal performance. This is also specifically stated in the breeding goal of the Swiss warmblood horse and should be achieved through a strict selection of the stallions. The aim of this retrospective study was to assess the current state of the population to optimize breeding. Data on the health status of Swiss warmblood horses in the age between 6 and 16 years (midlife) were collected by a telephone survey and analyzed descriptively. Following the heritability of the most common health problems were estimated. Data on 1,861 horses were collected between 2016 and 2018. Lameness (34%), colic (22%), sarcoids (19%), and pastern dermatitis (16%) were among the most common health problems, followed by back problems (13%), cough (10%), urticaria (10%), free fecal water syndrome (9%), nasal discharge (8%) and sweet itch (4%). Lameness was observed in 49% of the cases in the forelimbs, in 25% in the hindlimbs and in 26% in both. 27% of horses with colic have been hospitalized once and 8% have undergone colic surgery. Sarcoids became fewer or smaller in 89% of the treated and in 58% of the untreated horses. A significant relationship between treatment and the status of the sarcoids was demonstrated (p .
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Affiliation(s)
- N Altermatt
- Institut suisse de médecine équine (ISME), Vetsuisse-Fakultät, Universität Bern und Agroscope, Avenches
| | - G Dolf
- Institut für Genetik, Vetsuisse-Fakultät, Universität Bern
| | - A Ramseyer
- Institut suisse de médecine équine (ISME), Vetsuisse-Fakultät, Universität Bern und Agroscope, Avenches
| | - D Burger
- Institut suisse de médecine équine (ISME), Vetsuisse-Fakultät, Universität Bern und Agroscope, Avenches
| | - V Gerber
- Institut suisse de médecine équine (ISME), Vetsuisse-Fakultät, Universität Bern und Agroscope, Avenches
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14
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Krens S, Lubberman F, Van Egmond M, Jansman F, Burger D, Hamberg P, Vervenne W, Gelderblom H, Desar I, Van Herpen C, Van Erp N. 731P The impact of proton pump inhibitors on pazopanib exposure. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.803] [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: 10/23/2022] Open
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15
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Burger D, Beltrando E, Sagot J. Sound Synthesis and Bar-Code Technology to Develop Learning Environments for Blind Children. Journal of Visual Impairment & Blindness 2020. [DOI: 10.1177/0145482x9008401021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This article reports on a study of the pedagogical relevance of a computerized sound-based interactive tool as support for educating blind children. It details the concepts and materials that were developed and tested in classrooms and points out that a sound-based approach can be used for teaching in such different domains as sound awareness, logic, language, and technology.
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Affiliation(s)
- D. Burger
- Institut de la Sante et de la Recherche Medicate, Unit 88, 3, Boulevard Pasteur 75015 Paris, France
| | - E. Beltrando
- Centre Academique de Formation et d ‘Informatique Appliquee a la Pedagogie, Mont Saint Aignan, France
| | - J. Sagot
- Centre National d'Etudes et de Formation pour l'Enfance Inadaptee, Suresnes, France
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16
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Hoornenborg E, Coyer L, Boyd A, Achterbergh RCA, Schim van der Loeff MF, Bruisten S, de Vries HJC, Koopsen J, van de Laar TJW, Prins M, de Bree G, Brokx P, Deug F, Heidenrijk M, Prins M, Reiss P, van der Valk M, van Bergen J, de Bree G, Brokx P, Davidovich U, Geerlings S, Hoornenborg E, Oomen A, Sighem AV, Zuilhof W, Bruinderink MG, Achterbergh R, van Agtmael M, Ananworanich J, Van de Beek D, van den Berk G, Bezemer D, van Bijnen A, Blok W, Bogers S, Bomers M, Boucher C, Brokking W, Burger D, Brinkman K, Brinkman N, de Bruin M, Bruisten S, Coyer L, van Crevel R, Daans C, Dellemann L, Dijkstra M, van Duijnhoven Y, van Eeden A, Elsenburg L, van den Elshout M, Ester C, Ersan E, Felipa P, Frissen P, Geijtenbeek T, Godfried M, van Gool J, Goorhuis A, Groot M, Hankins C, Heijnen A, Hillebregt M, Hogewoning A, Hommenga M, Hovius J, Janssen Y, de Jong K, Jongen V, Kootstra N, Koup R, Kroon F, van de Laar T, Lauw F, van Leeuwen M, Lettinga K, Linde I, Loomans D, van der Meer J, Mouhebati T, Mulder B, Mulder J, Nellen F, Nijsters A, Nobel H, Oostvogel P, Op de Coul E, Peters E, Peters I, van der Poll T, Ratmann O, Rokx C, van Rooijen M, Schim van der Loeff M, Schoute W, Sonder G, Veenstra J, Verbon A, Verdult F, de Vocht J, de Vries H, Vrouenraets S, van Vugt M, Wiersinga W, Wit F, Woittiez L, Zaheri S, Zantkuijl P, van Zelm M, Żakowicz A, Zimmermann H. High incidence of HCV in HIV-negative men who have sex with men using pre-exposure prophylaxis. J Hepatol 2020; 72:855-864. [PMID: 31862485 DOI: 10.1016/j.jhep.2019.11.022] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [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: 06/10/2019] [Revised: 10/25/2019] [Accepted: 11/29/2019] [Indexed: 12/28/2022]
Abstract
BACKGROUND & AIMS HCV has emerged as a sexually transmitted infection (STI) among HIV-positive men who have sex with men (MSM). We evaluated HCV incidence and its risk factors among HIV-negative MSM using HIV pre-exposure prophylaxis (PrEP). METHODS Participants of the Amsterdam PrEP project were tested for HCV antibodies or HCV-RNA every 6 months. Participants used daily or event-driven PrEP and could switch regimens during follow-up. We calculated incidence rates (IRs) for overall HCV infection and separately for primary and re-infection. A univariable Bayesian exponential survival model was used to identify risk factors associated with incident HCV infection. The HCV NS5B gene fragment (709 bp) was sequenced and compared to HCV isolates from HIV-positive MSM and other risk groups (n = 419) using phylogenetic analysis. RESULTS Among 350 participants contributing 653.6 person-years (PYs), we detected 15 HCV infections in 14 participants (IR = 2.30/100PY). There were 8 primary infections (IR = 1.27/100PY) and 7 re-infections (IR = 27.8/100PY). IR was 2.71/100PY in daily and 1.15/100PY in event-driven PrEP users. Factors associated with incident HCV infection were higher number of receptive condomless anal sex acts with casual partners (posterior hazard ratio [HR] 1.57 per ln increase; 95% credibility interval [CrI] 1.09-2.20), anal STI (posterior HR 2.93; 95% CrI 1.24-7.13), injecting drug use (posterior HR 4.69; 95% CrI 1.61-12.09) and sharing straws when snorting drugs (posterior HR 2.62; 95% CrI 1.09-6.02). We identified robust MSM-specific HCV clusters of subtypes 1a, 4d, 2b and 3a, which included MSM with and without HIV. CONCLUSIONS HIV-negative MSM using PrEP are at risk of incident HCV infection, while identified risk factors are similar to those in HIV-positive MSM. Regular HCV testing is needed, especially for those with a previous HCV infection and those reporting risk factors. LAY SUMMARY We report that hepatitis C virus infections are frequently acquired among HIV-negative men who have sex with men (MSM) using pre-exposure prophylaxis to prevent HIV infection. New infections occurred more frequently in those reporting receptive anal sex without using condoms, having an anal sexually transmitted infection, injecting drugs, and sharing straws when snorting drugs. The viruses found in HIV-negative men using pre-exposure prophylaxis are genetically similar to those in HIV-positive men, but not in other hepatitis C risk groups, suggesting that (sexual) transmission is occurring between HIV-positive MSM and HIV-negative MSM using pre-exposure prophylaxis. CLINICAL TRIAL NUMBER Dutch trial registration number NTR5411.
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Affiliation(s)
- Elske Hoornenborg
- Public Health Service of Amsterdam, Department of Infectious Diseases, Amsterdam, the Netherlands.
| | - Liza Coyer
- Public Health Service of Amsterdam, Department of Infectious Diseases, Amsterdam, the Netherlands
| | - Anders Boyd
- Public Health Service of Amsterdam, Department of Infectious Diseases, Amsterdam, the Netherlands; Stichting HIV Monitoring, Amsterdam, the Netherlands
| | | | - Maarten Franciscus Schim van der Loeff
- Public Health Service of Amsterdam, Department of Infectious Diseases, Amsterdam, the Netherlands; Amsterdam University medical Centers, (UMC), Academic Medical Center, University of Amsterdam, Department of Infectious Diseases, Amsterdam Infection & Immunity Institute (AI&II), Amsterdam, the Netherlands
| | - Sylvia Bruisten
- Public Health Service of Amsterdam, Department of Infectious Diseases, Amsterdam, the Netherlands
| | - Henry John Christiaan de Vries
- Public Health Service of Amsterdam, Department of Infectious Diseases, Amsterdam, the Netherlands; Amsterdam UMC, University of Amsterdam, Academic Medical Center, Department of Dermatology, Amsterdam Institute for Infection and Immunity (AI&II), Amsterdam, Netherlands
| | - Jelle Koopsen
- Amsterdam UMC, University of Amsterdam, Academic Medical Center, Clinical Virology Laboratory, Amsterdam, the Netherlands
| | - Thijs J W van de Laar
- Department of Donor Medicine Research, Laboratory of Blood-borne Infections, Sanquin Research, Amsterdam, the Netherlands; Laboratory of Medical Microbiology, Onze Lieve Vrouwe Gasthuis, Amsterdam, the Netherlands
| | - Maria Prins
- Public Health Service of Amsterdam, Department of Infectious Diseases, Amsterdam, the Netherlands; Amsterdam University medical Centers, (UMC), Academic Medical Center, University of Amsterdam, Department of Infectious Diseases, Amsterdam Infection & Immunity Institute (AI&II), Amsterdam, the Netherlands
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Köhne M, Brüning P, Stuhtmann G, Tönissen A, Martinsson G, Burger D, Sieme H. Semen quality evaluation in young stallions – feasibility and comparison of two different protocols. PFERDEHEILKUNDE 2020. [DOI: 10.21836/pem20200102] [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: 11/27/2022]
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van der Kolk JH, Thomas S, Mach N, Ramseyer A, Burger D, Gerber V, Nuoffer JM. Serum acylcarnitine profile in endurance horses with and without metabolic dysfunction. Vet J 2019; 255:105419. [PMID: 31982078 DOI: 10.1016/j.tvjl.2019.105419] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [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: 12/29/2017] [Revised: 12/07/2019] [Accepted: 12/09/2019] [Indexed: 12/18/2022]
Abstract
Mitochondrial β-oxidation is essential in fat metabolism and can be monitored with blood acylcarnitine profiling, as partly degraded fatty acids accumulate as their carnitine esters. To guarantee continuous energy supply during long-distance exercise, endurance horses oxidise considerable amounts of fat in the mitochondrion. In endurance races over 80 km, glycogen depletion is evident in equine slow-twitch high oxidative muscle fibres and as a consequence, horses participating in endurance races over 80 km rely almost entirely on β-oxidation of fatty acids. This study investigated mitochondrial fatty acid β-oxidation in endurance horses exposed to long-distance exercise. Electrospray tandem mass spectrometry analysis of serum acylcarnitine profiles from 10 Arab horses was performed before and after a 160 km endurance race. Results were analysed statistically using ANOVA. Mean speed over the entire race in finishing horses was 16.7 ± 1.2 km/h. Endurance exercise increased mitochondrial β-oxidation approximately eight-fold (pre-race, 5648.62 ± 1508.52 nmol/L; post-race, 44,243.17 ± 11,504.45 nmol/L; P = 0.001). In these horses, there was an approximately 17-fold increased lipolysis, as demonstrated by elevated serum concentrations of non-esterified fatty acids (NEFA; pre-race, 0.08 ± 0.08 mmol/L; post-race, 1.32 ± 0.36 mmol/L; P < 0.001). In comparison, four Arab horses with poor performance showed an approximately five-fold increase in mitochondrial β-oxidation (pre-race, 5286.17 ± 3355.16 nmol/L; post-race, 26,660.57 ± 10,064.27 nmol/L; P = 0.009); there was a 29-fold increase in NEFA (pre-race, 0.02 ± 0.01 mmol/L; post-race, 0.58 ± 0.07 mmol/L; P = 0.006) in these horses. Similar post-exercise free carnitine:acetylcarnitine ratios in both groups suggest that the availability of carnitine in long-distance endurance horses might limit performance.
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Affiliation(s)
- J H van der Kolk
- Swiss Institute of Equine Medicine, University of Bern and Agroscope, Länggassstrasse 124, 3012 Bern, Switzerland.
| | - S Thomas
- Swiss Institute of Equine Medicine, University of Bern and Agroscope, Länggassstrasse 124, 3012 Bern, Switzerland
| | - N Mach
- UMR 1313, Institut National de la Recherche Agronomique (INRA), AgroParisTech, Université Paris-Saclay, Domaine de Vilvert, 78352 Jouy-en-Josas, France
| | - A Ramseyer
- Swiss Institute of Equine Medicine, University of Bern and Agroscope, Länggassstrasse 124, 3012 Bern, Switzerland
| | - D Burger
- Swiss Institute of Equine Medicine, University of Bern and Agroscope, Länggassstrasse 124, 3012 Bern, Switzerland
| | - V Gerber
- Swiss Institute of Equine Medicine, University of Bern and Agroscope, Länggassstrasse 124, 3012 Bern, Switzerland
| | - J-M Nuoffer
- Universitätsinstitut für Klinische Chemie (UKC), Bern University Hospital, Freiburgstrasse 8, 3010 Bern, Switzerland
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Shah A, Crawford D, Burger D, Martin N, Walker M, Talley NJ, Tallis C, Jones M, Stuart K, Keely S, Lewindon P, Macdonald GA, Morrison M, Holtmann GJ. Effects of Antibiotic Therapy in Primary Sclerosing Cholangitis with and without Inflammatory Bowel Disease: A Systematic Review and Meta-Analysis. Semin Liver Dis 2019; 39:432-441. [PMID: 31315136 DOI: 10.1055/s-0039-1688501] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The authors conducted a systematic review and meta-analysis to assess the effect of antibiotic therapy in primary sclerosing cholangitis (PSC). Effect of antibiotic therapy on Mayo PSC Risk Score (MRS), serum alkaline phosphatase (ALP), total serum bilirubin (TSB), and adverse events (AEs) rates were calculated and expressed as standardized difference of means or proportions. Five studies including 124 PSC patients who received antibiotics were included. Overall, antibiotic treatment was associated with a statistically significant reduction in ALP, MRS, and TSB by 33.2, 36.1, and 28.8%, respectively. ALP reduction was greatest for vancomycin (65.6%, p < 0.002) and smallest with metronidazole (22.7%, p = 0.18). Overall, 8.9% (95% confidence interval: 3.9-13.9) of patients had AEs severe enough to discontinue antibiotic therapy. In PSC patients, antibiotic treatment results in a significant improvement in markers of cholestasis and MRS. Antibiotics, particularly vancomycin, may have a positive effect on PSC either via direct effects on the microbiome or via host-mediated mechanisms.
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Affiliation(s)
- Ayesha Shah
- Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia.,Department of Gastroenterology & Hepatology, Princess Alexandra Hospital, Brisbane, QLD, Australia.,Translational Research Institute, Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - Darrel Crawford
- Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia.,Gallipoli Research Foundation, Brisbane, QLD Australia
| | - Daniel Burger
- Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia.,Department of Gastroenterology & Hepatology, Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - Neal Martin
- Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia.,Department of Gastroenterology & Hepatology, Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - Marjorie Walker
- Faculty of Health and Medicine, University of Newcastle, Newcastle, NSW Australia
| | - Nicholas J Talley
- Faculty of Health and Medicine, University of Newcastle, Newcastle, NSW Australia
| | - Caroline Tallis
- Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia.,Department of Gastroenterology & Hepatology, Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - Michael Jones
- Department of Psychology, Macquarie University, Sydney, NSW, Australia
| | - Katherine Stuart
- Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia.,Department of Gastroenterology & Hepatology, Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - Simon Keely
- Faculty of Health and Medicine, University of Newcastle, Newcastle, NSW Australia
| | - Peter Lewindon
- Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia.,Lady Cilento Children's Hospital, South Brisbane, QLD, Australia
| | - Graeme A Macdonald
- Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia.,Department of Gastroenterology & Hepatology, Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - Mark Morrison
- Department of Microbial Biology and Metagenomics, Diamantina Institute, University of Queensland, Woolloongabba, Brisbane, QLD, Australia
| | - Gerald J Holtmann
- Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia.,Department of Gastroenterology & Hepatology, Princess Alexandra Hospital, Brisbane, QLD, Australia.,Translational Research Institute, Princess Alexandra Hospital, Brisbane, QLD, Australia
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Boerekamps A, Newsum AM, Smit C, Arends JE, Richter C, Reiss P, Rijnders BJA, Brinkman K, van der Valk M, Godfried MH, Goorhuis A, Hovius JW, van der Meer JTM, Kuijpers TW, Nellen FJB, van der Poll DT, Prins JM, van Vugt HJM, Wiersinga WJ, Wit FWMN, van Duinen M, van Eden J, van Hes AMH, Mutschelknauss M, Nobel HE, Pijnappel FJJ, Weijsenfeld AM, Jurriaans S, Back NKT, Zaaijer HL, Berkhout B, Cornelissen MTE, Schinkel CJ, Wolthers KC, van den Berge M, Stegeman A, Baas S, de Looff LH, Wintermans B, Veenemans J, Pronk MJH, Ammerlaan HSM, de Munnik ES, Jansz AR, Tjhie J, Wegdam MCA, Deiman B, Scharnhorst V, van Eeden A, v d V M, Brokking W, Groot M, Elsenburg LJM, Damen M, Kwa IS, van Kasteren MEE, Brouwer AE, van Erve R, de Kruijf-van de Wiel BAFM, Keelan-Pfaf S, van der Ven B, de Kruijf-van de Wiel BAFM, van der Ven B, Buiting AGM, Kabel PJ, Versteeg D, van der Ende ME, Bax HI, van Gorp ECM, Nouwen JL, Schurink CAM, Verbon A, de Vries-Sluijs TEMS, de Jong-Peltenburg NC, Bassant N, van Beek JEA, Vriesde M, van Zonneveld LM, van den Berg-Cameron HJ, de Groot J, de Zeeuw-de Man M, Boucher CAB, Koopmans MPG, van Kampen JJA, Pas SD, Branger J, Rijkeboer-Mes A, Duijf-van de Ven CJHM, Schippers EF, van Nieuwkoop C, van IJperen JM, Geilings J, van der Hut G, van Burgel ND, Haag D, Leyten EMS, Gelinck LBS, van Hartingsveld AY, Meerkerk C, Wildenbeest GS, Heikens E, Groeneveld PHP, Bouwhuis JW, Lammers AJJ, Kraan S, van Hulzen AGW, van der Bliek GL, Bor PCJ, Bloembergen P, Wolfhagen MJHM, Ruijs GJHM, Kroon FP, de Boer MGJ, Scheper H, Jolink H, Vollaard AM, Dorama W, van Holten N, Claas ECJ, Wessels E, den Hollander JG, Pogany K, Roukens A, Kastelijns M, Smit JV, Smit E, Struik-Kalkman D, Tearno C, van Niekerk T, Pontesilli O, Lowe SH, Oude Lashof AML, Posthouwer D, Ackens RP, Burgers K, Schippers J, Weijenberg-Maes B, van Loo IHM, Havenith TRA, Mulder JW, Vrouenraets SME, Lauw FN, van Broekhuizen MC, Vlasblom DJ, Smits PHM, Weijer S, El Moussaoui R, Bosma AS, van Vonderen MGA, van Houte DPF, Kampschreur LM, Dijkstra K, Faber S, Weel J, Kootstra GJ, Delsing CE, van der Burg-van de Plas M, Heins H, Lucas E, Kortmann W, van Twillert G, Renckens R, Ruiter-Pronk D, van Truijen-Oud FA, Cohen Stuart JWT, IJzerman EP, Jansen R, Rozemeijer W, van der Reijden WA, van den Berk GEL, Blok WL, Frissen PHJ, Lettinga KD, Schouten WEM, Veenstra J, Brouwer CJ, Geerders GF, Hoeksema K, Kleene MJ, van der Meché IB, Spelbrink M, Toonen AJM, Wijnands S, Kwa D, Regez R, van Crevel R, Keuter M, van der Ven AJAM, ter Hofstede HJM, Dofferhoff ASM, Hoogerwerf J, Grintjes-Huisman KJT, de Haan M, Marneef M, Hairwassers A, Rahamat-Langendoen J, Stelma FF, Burger D, Gisolf EH, Hassing RJ, Claassen M, ter Beest G, van Bentum PHM, Langebeek N, Tiemessen R, Swanink CMA, van Lelyveld SFL, Soetekouw R, van der Prijt LMM, van der Swaluw J, Bermon N, van der Reijden WA, Jansen R, Herpers BL, Veenendaal D, Verhagen DWM, van Wijk M, Bierman WFW, Bakker M, Kleinnijenhuis J, Kloeze E, Stienstra Y, Wilting KR, Wouthuyzen-Bakker M, Boonstra A, van der Meulen PA, de Weerd DA, Niesters HGM, van Leer-Buter CC, Knoester M, Hoepelman AIM, Barth RE, Bruns AHW, Ellerbroek PM, Mudrikova T, Oosterheert JJ, Schadd EM, Wassenberg MWM, van Zoelen MAD, Aarsman K, van Elst-Laurijssen DHM, de Kroon I, van Rooijen CSAM, van Berkel M, van Rooijen CSAM, Schuurman R, Verduyn-Lunel F, Wensing AMJ, Peters EJG, van Agtmael MA, Bomers M, Heitmuller M, Laan LM, Ang CW, van Houdt R, Pettersson AM, Vandenbroucke-Grauls CMJE, Reiss P, Bezemer DO, van Sighem AI, Smit C, Wit FWMN, Boender TS, Zaheri S, Hillebregt M, de Jong A, Bergsma D, Grivell S, Jansen A, Raethke M, Meijering R, Rutkens T, de Groot L, van den Akker M, Bakker Y, Bezemer M, Claessen E, El Berkaoui A, Geerlinks J, Koops J, Kruijne E, Lodewijk C, van der Meer R, Munjishvili L, Paling F, Peeck B, Ree C, Regtop R, Ruijs Y, Schoorl M, Timmerman A, Tuijn E, Veenenberg L, van der Vliet S, Wisse A, de Witte EC, Woudstra T, Tuk B. High Treatment Uptake in Human Immunodeficiency Virus/Hepatitis C Virus-Coinfected Patients After Unrestricted Access to Direct-Acting Antivirals in the Netherlands. Clin Infect Dis 2019; 66:1352-1359. [PMID: 29186365 DOI: 10.1093/cid/cix1004] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 11/20/2017] [Indexed: 12/24/2022] Open
Abstract
Background The Netherlands has provided unrestricted access to direct-acting antivirals (DAAs) since November 2015. We analyzed the nationwide hepatitis C virus (HCV) treatment uptake among patients coinfected with human immunodeficiency virus (HIV) and HCV. Methods Data were obtained from the ATHENA HIV observational cohort in which >98% of HIV-infected patients ever registered since 1998 are included. Patients were included if they ever had 1 positive HCV RNA result, did not have spontaneous clearance, and were known to still be in care. Treatment uptake and outcome were assessed. When patients were treated more than once, data were included from only the most recent treatment episode. Data were updated until February 2017. In addition, each treatment center was queried in April 2017 for a data update on DAA treatment and achieved sustained virological response. Results Of 23574 HIV-infected patients ever linked to care, 1471 HCV-coinfected patients (69% men who have sex with men, 15% persons who [formerly] injected drugs, and 15% with another HIV transmission route) fulfilled the inclusion criteria. Of these, 87% (1284 of 1471) had ever initiated HCV treatment between 2000 and 2017, 76% (1124 of 1471) had their HCV infection cured; DAA treatment results were pending in 6% (92 of 1471). Among men who have sex with men, 83% (844 of 1022) had their HCV infection cured, and DAA treatment results were pending in 6% (66 of 1022). Overall, 187 patients had never initiated treatment, DAAs had failed in 14, and a pegylated interferon-alfa-based regimen had failed in 54. Conclusions Fifteen months after unrestricted DAA availability the majority of HIV/HCV-coinfected patients in the Netherlands have their HCV infection cured (76%) or are awaiting DAA treatment results (6%). This rapid treatment scale-up may contribute to future HCV elimination among these patients.
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Affiliation(s)
- Anne Boerekamps
- Department of Internal Medicine and Infectious Diseases, Erasmus Medical Center, Rotterdam
| | - Astrid M Newsum
- Department of Infectious Diseases Research and Prevention, Public Health Service of Amsterdam.,Division of Infectious Diseases, Amsterdam Infection and Immunity Institute, Academic Medical Center
| | | | - Joop E Arends
- Department of Internal Medicine, Section Infectious Diseases, University Medical Center Utrecht
| | - Clemens Richter
- Department of Internal Medicine and Infectious Diseases, Rijnstate Hospital, Arnhem
| | - Peter Reiss
- Division of Infectious Diseases, Amsterdam Infection and Immunity Institute, Academic Medical Center.,Stichting HIV Monitoring, Amsterdam.,Department of Global Health, Academic Medical Center and Amsterdam Institute for Global Health and Development
| | - Bart J A Rijnders
- Department of Internal Medicine and Infectious Diseases, Erasmus Medical Center, Rotterdam
| | - Kees Brinkman
- Department of Internal Medicine and Infectious Diseases, Onze Lieve Vrouwe Gasthuis, Amsterdam, the Netherlands
| | - Marc van der Valk
- Division of Infectious Diseases, Amsterdam Infection and Immunity Institute, Academic Medical Center
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Shah A, Morrison M, Burger D, Martin N, Rich J, Jones M, Koloski N, Walker MM, Talley NJ, Holtmann GJ. Systematic review with meta-analysis: the prevalence of small intestinal bacterial overgrowth in inflammatory bowel disease. Aliment Pharmacol Ther 2019; 49:624-635. [PMID: 30735254 DOI: 10.1111/apt.15133] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [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: 07/07/2018] [Revised: 08/05/2018] [Accepted: 12/16/2018] [Indexed: 02/06/2023]
Abstract
BACKGROUND Current data on small intestinal bacterial overgrowth (SIBO) in patients with inflammatory bowel diseases (IBD) are controversial. AIM To conduct a systematic review and meta-analysis to determine the prevalence of SIBO in patients with ulcerative colitis (UC) and Crohn's disease (CD). METHODS Electronic databases were searched up to May 2018 for studies reporting prevalence of SIBO in IBD patients. The prevalence rate of SIBO among IBD patients and the odds ratio (OR) and 95% CI of SIBO in IBD patients compared with controls were calculated. RESULTS The final dataset included 11 studies (1175 adult patients with IBD and 407 controls), all utilising breath test for diagnosis of SIBO. The proportion of SIBO in IBD patients was 22.3% (95% CI 19.92-24.68). The OR for SIBO in IBD patients was 9.51 (95% CI 3.39-26.68) compared to non-IBD controls, and high in both CD (OR = 10.86; 95% CI 2.76-42.69) and UC (OR = 7.96; 95% CI 1.66-38.35). In patients with CD, subgroup analysis showed the presence of fibrostenosing disease (OR = 7.47; 95% CI 2.51-22.20) and prior bowel surgery (OR = 2.38; 95% CI 1.65-3.44), especially resection of the ileocecal valve, increased the odds of SIBO. Individual studies suggest that combined small and large bowel disease but not disease activity may be associated with SIBO. CONCLUSIONS Overall, there is a substantial increase in the prevalence of SIBO in IBD patients compared to controls. Prior surgery and the presence of fibrostenosing disease are risk factors for SIBO in IBD.
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Affiliation(s)
- Ayesha Shah
- The University of Queensland, Faculty of Medicine and Faculty of Health and Behavioural Sciences, Brisbane, QLD, Australia
- Department of Gastroenterology & Hepatology, Princess Alexandra Hospital, Brisbane, QLD, Australia
- Translational Research Institute, Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - Mark Morrison
- University of Queensland, Diamantina Institute, Microbial Biology and Metagenomics, QLD, Australia
| | - Daniel Burger
- The University of Queensland, Faculty of Medicine and Faculty of Health and Behavioural Sciences, Brisbane, QLD, Australia
- Department of Gastroenterology & Hepatology, Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - Neal Martin
- The University of Queensland, Faculty of Medicine and Faculty of Health and Behavioural Sciences, Brisbane, QLD, Australia
- Department of Gastroenterology & Hepatology, Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - Justin Rich
- The University of Queensland, Faculty of Medicine and Faculty of Health and Behavioural Sciences, Brisbane, QLD, Australia
- Department of Gastroenterology & Hepatology, Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - Mike Jones
- Macquarie University, Department of Psychology, Sydney, NSW, Australia
| | - Natasha Koloski
- Department of Gastroenterology & Hepatology, Princess Alexandra Hospital, Brisbane, QLD, Australia
- University of Queensland, Diamantina Institute, Microbial Biology and Metagenomics, QLD, Australia
| | | | | | - Gerald J Holtmann
- The University of Queensland, Faculty of Medicine and Faculty of Health and Behavioural Sciences, Brisbane, QLD, Australia
- Department of Gastroenterology & Hepatology, Princess Alexandra Hospital, Brisbane, QLD, Australia
- Translational Research Institute, Princess Alexandra Hospital, Brisbane, QLD, Australia
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Lorello O, Ramseyer A, Burger D, Gerber V, Navas de Solis C. Cardiovascular variables in eventing and endurance horses over a season. J Vet Cardiol 2019; 21:67-78. [DOI: 10.1016/j.jvc.2018.08.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2016] [Revised: 08/19/2018] [Accepted: 08/20/2018] [Indexed: 10/27/2022]
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Affiliation(s)
- S. Gurusiddaiah
- Bioanalytical Center, Washington State University, Pullman, Washington 99164
| | - L. D. Winward
- Science and Education Administration, Federal Research, Western Region Pioneering Research Laboratory, Pullman, Washington 99164
| | - D. Burger
- Veterinary Microbiology and Pathology, Washington State University, Pullman, Washington 99164
| | - S. O. Graham
- (Deceased) Former Professor of Plant Pathology, Washington State University, Pullman, Washington 99164
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Lühr J, Oldenhof H, Bigalk J, Martinsson G, Burger D, Sieme H. Evaluation of Fertilization Capacity of Cryopreserved Stallion Sperm, Directly After Thawing and After Cooled Storage. J Equine Vet Sci 2018. [DOI: 10.1016/j.jevs.2018.05.041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Herrera C, Jeannerat E, Sanchez R, Burger D, Wyck S, Janett F, Bollwein H. Blastocoele Fluid vs. Embryonic Cells for Sex Determination in Equine Embryos. J Equine Vet Sci 2018. [DOI: 10.1016/j.jevs.2018.05.087] [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: 11/28/2022]
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Burger D, Marti E, Jeannerat E, Kaeser R, Sieme H, Wedekind C. MHC Social Signaling Affects Reproductive Strategies of Stallions and Mares. J Equine Vet Sci 2018. [DOI: 10.1016/j.jevs.2018.05.072] [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: 11/27/2022]
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Burger D, Thomas S, Aepli H, Dreyer M, Fabre G, Marti E, Sieme H, Robinson MR, Wedekind C. Major histocompatibility complex-linked social signalling affects female fertility. Proc Biol Sci 2018; 284:rspb.2017.1824. [PMID: 29212724 DOI: 10.1098/rspb.2017.1824] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [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: 08/16/2017] [Accepted: 11/02/2017] [Indexed: 02/03/2023] Open
Abstract
Genes of the major histocompatibility complex (MHC) have been shown to influence social signalling and mate preferences in many species, including humans. First observations suggest that MHC signalling may also affect female fertility. To test this hypothesis, we exposed 191 female horses (Equus caballus) to either an MHC-similar or an MHC-dissimilar stimulus male around the time of ovulation and conception. A within-subject experimental design controlled for non-MHC-linked male characteristics, and instrumental insemination with semen of other males (n = 106) controlled for potential confounding effects of semen or embryo characteristics. We found that females were more likely to become pregnant if exposed to an MHC-dissimilar than to an MHC-similar male, while overall genetic distance to the stimulus males (based on microsatellite markers on 20 chromosomes) had no effect. Our results demonstrate that early pregnancy failures can be due to maternal life-history decisions (cryptic female choice) influenced by MHC-linked social signalling.
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Affiliation(s)
- D Burger
- Swiss Institute of Equine Medicine, Agroscope and University of Berne, 1580 Avenches, Switzerland
| | - S Thomas
- Swiss Institute of Equine Medicine, Agroscope and University of Berne, 1580 Avenches, Switzerland
| | - H Aepli
- Swiss Institute of Equine Medicine, Agroscope and University of Berne, 1580 Avenches, Switzerland
| | - M Dreyer
- Department of Ecology and Evolution, Biophore, University of Lausanne, 1015 Lausanne, Switzerland
| | - G Fabre
- Department of Ecology and Evolution, Biophore, University of Lausanne, 1015 Lausanne, Switzerland
| | - E Marti
- Department of Clinical Research, Vetsuisse Faculty, University of Berne, 3012 Bern, Switzerland
| | - H Sieme
- Clinic for Horses, Unit for Reproductive Medicine, University of Veterinary Medicine Hannover, 30559 Hannover, Germany
| | - M R Robinson
- Department of Computational Biology, Genopode, University of Lausanne, 1015 Lausanne, Switzerland
| | - C Wedekind
- Department of Ecology and Evolution, Biophore, University of Lausanne, 1015 Lausanne, Switzerland
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Jeannerat E, Marti E, Berney C, Janett F, Bollwein H, Sieme H, Burger D, Wedekind C. Stallion semen quality depends on major histocompatibility complex matching to teaser mare. Mol Ecol 2018; 27:1025-1035. [PMID: 29334412 DOI: 10.1111/mec.14490] [Citation(s) in RCA: 11] [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] [Subscribe] [Scholar Register] [Received: 09/23/2017] [Revised: 12/19/2017] [Accepted: 12/22/2017] [Indexed: 01/11/2023]
Abstract
The major histocompatibility complex (MHC) has repeatedly been found to influence mate choice of vertebrates, with MHC-dissimilar mates typically being preferred over MHC-similar mates. We used horses (Equus caballus) to test whether MHC matching also affects male investment into ejaculates after short exposure to a female. Semen characteristics varied much among stallions. Controlling for this variance with a full-factorial within-subject experimental design, we found that a short exposure to an MHC-dissimilar mare enhanced male plasma testosterone and led to ejaculates with elevated sperm numbers as compared to exposure to an MHC-similar mare. Sperm velocity seemed not affected by the treatment. Overall genetic similarity between stallions and mares (determined from polymorphic microsatellites on 20 different chromosomes) played no significant role here. The MHC type of the teaser mare also affected characteristics of cold-stored sperm after 24 and 48 hr. As expected from ejaculate economics, sperm viability was elevated after exposure to an MHC-dissimilar mare. However, oxidative stress and the percentage of sperm with a high DNA fragmentation were mostly increased after exposure to an MHC-dissimilar mare, depending also on whether the teaser mare was in oestrous or not. We conclude that males can quickly adjust ejaculate quality relative to a female's MHC, and that this male reaction to the social environment can also affect important characteristics of cold-stored semen.
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Affiliation(s)
- E Jeannerat
- Swiss Institute of Equine Medicine ISME, Agroscope and University of Berne, Avenches, Switzerland
| | - E Marti
- Department of Clinical Research, Vetsuisse Faculty, University of Berne, Berne, Switzerland
| | - C Berney
- Department of Ecology and Evolution, Biophore, University of Lausanne, Lausanne, Switzerland
| | - F Janett
- Clinic of Reproductive Medicine, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - H Bollwein
- Clinic of Reproductive Medicine, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - H Sieme
- Unit for Reproductive Medicine - Clinic for Horses, University of Veterinary Medicine Hannover, Hannover, Germany
| | - D Burger
- Swiss Institute of Equine Medicine ISME, Agroscope and University of Berne, Avenches, Switzerland
| | - C Wedekind
- Department of Ecology and Evolution, Biophore, University of Lausanne, Lausanne, Switzerland
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Solis CN, Althaus F, Basieux N, Burger D. Sudden death in sport and riding horses during and immediately after exercise: A case series. Equine Vet J 2018; 50:644-648. [DOI: 10.1111/evj.12803] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Accepted: 01/09/2018] [Indexed: 11/28/2022]
Affiliation(s)
- C. Navas Solis
- Swiss Institute of Equine Medicine Vetsuisse Faculty University of Bern, and Agroscope Bern Switzerland
- Department of Large Animal Clinical Sciences Texas A&M University College Station Texas USA
| | - F. Althaus
- Swiss Institute of Equine Medicine Vetsuisse Faculty University of Bern, and Agroscope Bern Switzerland
| | - N. Basieux
- Swiss Equestrian Federation Bern Switzerland
| | - D. Burger
- Swiss Institute of Equine Medicine Vetsuisse Faculty University of Bern, and Agroscope Bern Switzerland
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Scheidegger M, Gerber V, Bruckmaier R, van der Kolk J, Burger D, Ramseyer A. Increased adrenocortical response to adrenocorticotropic hormone (ACTH) in sport horses with equine glandular gastric disease (EGGD). Vet J 2017; 228:7-12. [DOI: 10.1016/j.tvjl.2017.09.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 08/17/2017] [Accepted: 09/07/2017] [Indexed: 01/15/2023]
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Koloski NA, Jones M, Hammer J, von Wulffen M, Shah A, Hoelz H, Kutyla M, Burger D, Martin N, Gurusamy SR, Talley NJ, Holtmann G. Erratum to: The Validity of a New Structured Assessment of Gastrointestinal Symptoms Scale (SAGIS) for Evaluating Symptoms in the Clinical Setting. Dig Dis Sci 2017; 62:2607. [PMID: 28689252 DOI: 10.1007/s10620-017-4674-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Affiliation(s)
- N A Koloski
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital and Translational Research Institute (TRI), Ipswich Rd, Woolloongabba, Brisbane, QLD, 4102, Australia
- Faculty of Medicine, University of Queensland, Brisbane, QLD, 4072, Australia
- Faculty of Health and Medicine, University of Newcastle, Newcastle, NSW, 2308, Australia
| | - M Jones
- Department of Psychology, Macquarie University, North Ryde, NSW, 2109, Australia
| | - J Hammer
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital and Translational Research Institute (TRI), Ipswich Rd, Woolloongabba, Brisbane, QLD, 4102, Australia
- Faculty of Medicine, University of Queensland, Brisbane, QLD, 4072, Australia
| | - M von Wulffen
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital and Translational Research Institute (TRI), Ipswich Rd, Woolloongabba, Brisbane, QLD, 4102, Australia
- Faculty of Medicine, University of Queensland, Brisbane, QLD, 4072, Australia
| | - A Shah
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital and Translational Research Institute (TRI), Ipswich Rd, Woolloongabba, Brisbane, QLD, 4102, Australia
- Faculty of Medicine, University of Queensland, Brisbane, QLD, 4072, Australia
| | - H Hoelz
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital and Translational Research Institute (TRI), Ipswich Rd, Woolloongabba, Brisbane, QLD, 4102, Australia
| | - M Kutyla
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital and Translational Research Institute (TRI), Ipswich Rd, Woolloongabba, Brisbane, QLD, 4102, Australia
| | - D Burger
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital and Translational Research Institute (TRI), Ipswich Rd, Woolloongabba, Brisbane, QLD, 4102, Australia
| | - N Martin
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital and Translational Research Institute (TRI), Ipswich Rd, Woolloongabba, Brisbane, QLD, 4102, Australia
| | - S R Gurusamy
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital and Translational Research Institute (TRI), Ipswich Rd, Woolloongabba, Brisbane, QLD, 4102, Australia
| | - N J Talley
- Faculty of Health and Medicine, University of Newcastle, Newcastle, NSW, 2308, Australia
| | - G Holtmann
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital and Translational Research Institute (TRI), Ipswich Rd, Woolloongabba, Brisbane, QLD, 4102, Australia.
- Faculty of Medicine, University of Queensland, Brisbane, QLD, 4072, Australia.
- Faculty of Health and Behavioural Sciences, University of Queensland, St Lucia, QLD, 4067, Australia.
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Shah A, Talley NJ, Walker M, Koloski N, Morrison M, Burger D, Andrews JM, McGuckin M, Jones M, Holtmann G. Is There a Link Between H. Pylori and the Epidemiology of Crohn's Disease? Dig Dis Sci 2017; 62:2472-2480. [PMID: 28281167 DOI: 10.1007/s10620-017-4496-z] [Citation(s) in RCA: 7] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 02/08/2017] [Indexed: 12/17/2022]
Abstract
INTRODUCTION Case control studies suggest an inverse association between Helicobacter pylori (H. pylori) and Crohn's disease (CD). It is possible this could be accounted for by confounders such as antibiotic therapy. Analyzing the geographic distribution of H. pylori and the links with the incidence and prevalence of CD would be an alternative approach to circumvent these confounders. METHODS The literature was searched for studies published between 1990 and 2016 that reported incidence or prevalence data for CD in random population samples in developed countries (GDP per capita >20,000 USD/year). Corresponding prevalence studies for H. pylori in these same regions were then sought matched to the same time period (±6 years). The association between the incidence and prevalence of CD and H. pylori prevalence rates were assessed before and after adjusting for GDP and life expectancy. RESULTS A total of 19 CD prevalence and 22 CD incidence studies from 10 European countries, Japan, USA, and Australia with date-matched H. pylori prevalence data were identified. The mean H. pylori prevalence rate was 43.4% (range 15.5-85%), and the mean rates for incidence and prevalence for CD were 6.9 and 91.0/100,000 respectively. The incidence (r = -0.469, p < 0.03) and prevalence (r = -0.527, p = 0.02) of CD was inversely and significantly associated with prevalence of H. pylori infection. CONCLUSIONS Our data demonstrate a significant inverse association between geographic distribution of H. pylori and CD. Thus, it is highly unlikely that the findings of previous case control studies were simply due to confounding factors such as concomitant antibiotic use in CD patients.
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Affiliation(s)
- Ayesha Shah
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Faculty of Medicine and Faculty of Health and Behavioural Sciences, Translational Research Institute, University of Queensland, Ipswich Road, Woolloongabba, Brisbane, QLD, Australia
| | - Nicholas J Talley
- Faculty of Health and Medicine, University of Newcastle, Newcastle, NSW, Australia
| | - Marjorie Walker
- Faculty of Health and Medicine, University of Newcastle, Newcastle, NSW, Australia
| | - Natasha Koloski
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Faculty of Medicine and Faculty of Health and Behavioural Sciences, Translational Research Institute, University of Queensland, Ipswich Road, Woolloongabba, Brisbane, QLD, Australia.,Faculty of Health and Medicine, University of Newcastle, Newcastle, NSW, Australia
| | - Mark Morrison
- Microbial Biology and Metagenomics, Diamantina Institute, University of Queensland, Brisbane, QLD, Australia
| | - Daniel Burger
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Faculty of Medicine and Faculty of Health and Behavioural Sciences, Translational Research Institute, University of Queensland, Ipswich Road, Woolloongabba, Brisbane, QLD, Australia
| | - Jane M Andrews
- Department of Gastroenterology and Hepatology, Royal Adelaide Hospital, University of Adelaide, Adelaide, SA, Australia
| | - Michael McGuckin
- Mater Medical Research Institute, Translational Research Institute, University of Queensland, Woolloongabba, QLD, Australia
| | - Mike Jones
- Department of Psychology, Macquarie University, Sydney, NSW, Australia
| | - Gerald Holtmann
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Faculty of Medicine and Faculty of Health and Behavioural Sciences, Translational Research Institute, University of Queensland, Ipswich Road, Woolloongabba, Brisbane, QLD, Australia.
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Glerum P, Yu Y, Yamada W, Neely M, Maliepaard M, Burger D, Neef C. Robustness of the Conclusion of Bioequivalence; A Non-Parametric Comparison. Clin Ther 2017. [DOI: 10.1016/j.clinthera.2017.05.196] [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: 11/29/2022]
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Guirgis M, Wendt E, Wang LM, Walsh A, Burger D, Bryant RV, Kent A, Adamson R, Brain O, Travis SPL, Keshav S. Beyond Histological Remission: Intramucosal Calprotectin as a Potential Predictor of Outcomes in Ulcerative Colitis. J Crohns Colitis 2017; 11:460-467. [PMID: 27856523 DOI: 10.1093/ecco-jcc/jjw174] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 04/14/2016] [Accepted: 11/09/2016] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS Histological remission and low faecal calprotectin are positive prognostic factors in ulcerative colitis [UC]. Intramucosal calprotectin [iMC], which can be readily determined by immunohistochemistry, has not so far been evaluated as a predictor of outcome in UC. We aimed to investigate the relationship between iMC and clinical, endoscopic, and histological measures of remission in UC, and the independent prognostic value of iMC. METHODS Ambulant patients with UC were recruited for a study comparing clinical activity indices. Sigmoidoscopy and biopsy were performed at the index visit. Clinical, endoscopic, and histological activity were scored and iMC semi-quantitatively measured using immunohistochemistry for the S100A8/9 heterodimer on colonic biopsies, scored as the mean number of positive cells in five high-power fields [HPF]. At the end of follow-up [6 years], data on steroid use, hospitalisation, and colectomy ['adverse outcomes'] were collected. RESULTS iMC was determined in 83 patients and 20 controls, and correlated with clinical, endoscopic, and histological activity [r = 0.51, 0.65, 0.53, p > 0.001, respectively]. iMC was lowest (median 2.4, interquartile range [IQR]: 5.2-5, p < 0.001) in patients with concordance between clinical, endoscopic, and histological remission. Median iMC > 5/HPF was associated with adverse outcome (hazard ratio [HR] 3.36, confidence interval [CI] 1.58, 7.15, p < 0.001). Only 53%, 33%, and 25% of patients in histological remission with iMC > 5 cells/HPF avoided an adverse outcome after 1, 3, and 6 years, respectively. CONCLUSIONS iMC was lowest in patients with concordant clinical, endoscopic, and histological remission. Median iMC > 5/HPF was associated with adverse outcomes despite histological remission. Therefore iMC is a potentially useful independent marker of activity.
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Affiliation(s)
- Marianne Guirgis
- Translational Gastroenterology Unit, Oxford University Hospital, Oxford, UK
| | - Emily Wendt
- Translational Gastroenterology Unit, Oxford University Hospital, Oxford, UK
| | - Lai Mun Wang
- Department of Cellular Pathology, Oxford University Hospital, Oxford, UK
| | - Alissa Walsh
- Translational Gastroenterology Unit, Oxford University Hospital, Oxford, UK
| | - Daniel Burger
- Translational Gastroenterology Unit, Oxford University Hospital, Oxford, UK
| | - Robert V Bryant
- Translational Gastroenterology Unit, Oxford University Hospital, Oxford, UK
| | - Alex Kent
- Translational Gastroenterology Unit, Oxford University Hospital, Oxford, UK
| | - Rebecca Adamson
- Translational Gastroenterology Unit, Oxford University Hospital, Oxford, UK
| | - Oliver Brain
- Translational Gastroenterology Unit, Oxford University Hospital, Oxford, UK
| | - Simon P L Travis
- Translational Gastroenterology Unit, Oxford University Hospital, Oxford, UK
| | - Satish Keshav
- Translational Gastroenterology Unit, Oxford University Hospital, Oxford, UK
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Frossard CP, Lazarevic V, Gaïa N, Leo S, Doras C, Habre W, Schrenzel J, Burger D, Eigenmann PA. The farming environment protects mice from allergen-induced skin contact hypersensitivity. Clin Exp Allergy 2017; 47:805-814. [DOI: 10.1111/cea.12905] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 01/06/2017] [Accepted: 02/08/2017] [Indexed: 12/11/2022]
Affiliation(s)
- C. P. Frossard
- Inflammation and Allergy Research Group; University Hospitals of Geneva and University of Geneva; Geneva Switzerland
| | - V. Lazarevic
- Genomic Research Laboratory; Division of Infectious Diseases; Departments of Pediatrics, Anesthesiology, and Internal Medicine Specialties; Faculty of Medicine; University of Geneva; Geneva Switzerland
- Division of Laboratory Medicine; Departments of Pediatrics, Anesthesiology, and Internal Medicine Specialties; Faculty of Medicine; University of Geneva; Geneva Switzerland
| | - N. Gaïa
- Genomic Research Laboratory; Division of Infectious Diseases; Departments of Pediatrics, Anesthesiology, and Internal Medicine Specialties; Faculty of Medicine; University of Geneva; Geneva Switzerland
- Division of Laboratory Medicine; Departments of Pediatrics, Anesthesiology, and Internal Medicine Specialties; Faculty of Medicine; University of Geneva; Geneva Switzerland
| | - S. Leo
- Genomic Research Laboratory; Division of Infectious Diseases; Departments of Pediatrics, Anesthesiology, and Internal Medicine Specialties; Faculty of Medicine; University of Geneva; Geneva Switzerland
- Division of Laboratory Medicine; Departments of Pediatrics, Anesthesiology, and Internal Medicine Specialties; Faculty of Medicine; University of Geneva; Geneva Switzerland
| | - C. Doras
- Division of Anesthesiology Investigation; Departments of Pediatrics, Anesthesiology, and Internal Medicine Specialties; Faculty of Medicine; University of Geneva; Geneva Switzerland
| | - W. Habre
- Division of Anesthesiology Investigation; Departments of Pediatrics, Anesthesiology, and Internal Medicine Specialties; Faculty of Medicine; University of Geneva; Geneva Switzerland
| | - J. Schrenzel
- Genomic Research Laboratory; Division of Infectious Diseases; Departments of Pediatrics, Anesthesiology, and Internal Medicine Specialties; Faculty of Medicine; University of Geneva; Geneva Switzerland
- Division of Laboratory Medicine; Departments of Pediatrics, Anesthesiology, and Internal Medicine Specialties; Faculty of Medicine; University of Geneva; Geneva Switzerland
| | - D. Burger
- Inflammation and Allergy Research Group; University Hospitals of Geneva and University of Geneva; Geneva Switzerland
- Hans Wilsdorf Laboratory; Departments of Pediatrics, Anesthesiology, and Internal Medicine Specialties; Faculty of Medicine; University of Geneva; Geneva Switzerland
| | - P. A. Eigenmann
- Inflammation and Allergy Research Group; University Hospitals of Geneva and University of Geneva; Geneva Switzerland
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van Vlijmen B, van Gool L, Repping-Wuts H, Ketels T, Kerstens M, Burger D, Hermus A, Smit J. [Successful switch from originator to biosimilar growth hormone: patients' experiences]. Ned Tijdschr Geneeskd 2017; 161:D1415. [PMID: 29098966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To survey patients' experiences with the switch from an originator biologic to a biosimilar growth hormone. DESIGN Questionnaire. METHOD We developed a questionnaire in which patients were asked about their experiences with the switch from an originator biologic to a biosimilar growth hormone. The questionnaire was distributed to all 207 patients who were switched to the biosimilar in the Radboudumc since April 2014. The following topics were covered: (a) difficulties experienced in switching from originator to biosimilar; (b) patient education; (c) effectiveness of the biosimilar product; (d) possible adverse effects experienced; and (e) experience with application of the new injection system for the biosimilar. RESULTS The questionnaire was completed by 79 patients (38.1%). Seventy-two percent of the patients indicated that before switching they had no concerns about switching. The other patients did have concerns beforehand, which were related to the different injection system (n=13), possible new adverse effects (n=13) and safety of the biosimilar (n=11). Before the switch was made, all patients had been informed in writing and also individually by endocrinologists and specialised nurses; 93% of the patients was satisfied with the counselling provided by Radboudumc. Concerning use of the new injection system, 95% of the patients indicated that they had received individual training and 98% was confident in using it. Patients rated the process of transition to the biosimilar at the Radboudumc an average of 7.8 (range: 1-10). CONCLUSION Patients were satisfied with the switch to the biosimilar growth hormone and there were few side-effects. Some minor problems were encountered, but these could be solved. Extensive counselling of patients before switching to prescription of biosimilars proved to be worthwhile. The switch has led to a significant reduction in costs.
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Meyer J, Poisson J, Turner T, Burger D, Acker J, Ben R. Investigating microparticle formation with novel ice recrystallization inhibitors. Cryobiology 2016. [DOI: 10.1016/j.cryobiol.2016.09.114] [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: 10/20/2022]
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Burger D, Meuwly C, Marti E, Sieme H, Oberthür M, Janda J, Meinecke-Tillmann S, Wedekind C. MHC-correlated preferences in diestrous female horses (Equus caballus). Theriogenology 2016; 89:318-323.e1. [PMID: 27842717 DOI: 10.1016/j.theriogenology.2016.09.015] [Citation(s) in RCA: 8] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2016] [Revised: 09/07/2016] [Accepted: 09/07/2016] [Indexed: 12/29/2022]
Abstract
Genes of the major histocompatibility complex (MHC) have been shown to influence communication in many vertebrates, possibly with context-specific MHC-correlated reactions. Here we test for MHC-linked female preferences in the polygynous horse (Equus caballus) by repeatedly exposing 19 mares to a group of seven sexually experienced stallions. Each mare was tested four times during two consecutive reproductive cycles, twice during estrus and twice during diestrus. Male plasma testosterone concentrations were determined from weekly blood samples, and equine leukocyte antigen (ELA) class I and II alleles were determined serologically at the end of the experiments. Perception of male attractiveness was strongly dependent on estrous cycle: mean preference scores did not correlate for mares in diestrus and estrus and varied more during estrus than during diestrus. We found elevated female interests for MHC-dissimilar stallions, but only during diestrus, not during estrus. Female preferences were not significantly predicted by mean male testosterone plasma concentrations. However, testosterone concentrations changed during the 11 weeks of the experiment. By the end of the experiment, average testosterone concentration was significantly correlated to the average number of MHC alleles the stallions shared with the mares. We conclude that the MHC affects female preferences for stallions, but non-MHC linked male characteristics can overshadow effects of the MHC during estrus.
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Affiliation(s)
- D Burger
- Swiss Institute of Equine Medicine, Agroscope and University of Bern, Avenches, Switzerland.
| | - C Meuwly
- Swiss Institute of Equine Medicine, Agroscope and University of Bern, Avenches, Switzerland
| | - E Marti
- Department of Clinical Research, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - H Sieme
- Institute for Reproductive Biology, University of Veterinary Medicine Hanover, Hanover, Germany
| | - M Oberthür
- Unit for Reproductive Medicine-Clinic for Horses, University of Veterinary Medicine Hanover, Hanover, Germany
| | - J Janda
- Department of Clinical Research, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - S Meinecke-Tillmann
- Unit for Reproductive Medicine-Clinic for Horses, University of Veterinary Medicine Hanover, Hanover, Germany
| | - C Wedekind
- Department of Ecology and Evolution, Biophore, University of Lausanne, Lausanne, Switzerland
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Mönnig F, Richter J, Sielhorst J, Martinsson G, Schöniger S, Schoon H, Burger D, Morrell J, Sieme H. Influence of artificial insemination technique and single-layer centrifugation of semen on post breeding endometritis in the mare. J Equine Vet Sci 2016. [DOI: 10.1016/j.jevs.2016.06.053] [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: 11/24/2022]
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van Dorland A, Bruckmaier R, Wach-Gygax L, Jeannerat E, Janett F, Sieme H, Burger D. Variability of antioxidant capacity of stallion semen during feed supplementation with a yeast product. J Equine Vet Sci 2016. [DOI: 10.1016/j.jevs.2016.06.067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Affiliation(s)
- F. Berruex
- Department of Clinical Veterinary Science, Swiss Institute of Equine Medicine, University of Berne and Agroscope, Berne and Avenches, Switzerland
| | - V. Gerber
- Department of Clinical Veterinary Science, Swiss Institute of Equine Medicine, University of Berne and Agroscope, Berne and Avenches, Switzerland
| | - F. D. Wohlfender
- Department of Clinical Veterinary Science, Swiss Institute of Equine Medicine, University of Berne and Agroscope, Berne and Avenches, Switzerland
- Vetsuisse Faculty, Department of Clinical Veterinary Science, Veterinary Public Health Institute, University of Berne, Berne, Switzerland
| | - D. Burger
- Department of Clinical Veterinary Science, Swiss Institute of Equine Medicine, University of Berne and Agroscope, Berne and Avenches, Switzerland
| | - C. Koch
- Department of Clinical Veterinary Science, Swiss Institute of Equine Medicine, University of Berne and Agroscope, Berne and Avenches, Switzerland
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Gevers TJG, Burger D, Schipper-Reintjes E, Kooistra MP, Richter C. Full-dose sofosbuvir and daclatasvir for chronic hepatitis C infection in haemodialysis patients. Neth J Med 2016; 74:225-227. [PMID: 27323683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Affiliation(s)
- T J G Gevers
- Department of Infectious Diseases, Rijnstate hospital, Arnhem, the Netherlands
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Lantinga MA, Wijnands TFM, Te Morsche RHM, de Sévaux RGL, Kuipers S, Allegaert K, Burger D, Drenth JPH. Hepatic cyst penetration of cefazolin in patients receiving aspiration sclerotherapy. J Antimicrob Chemother 2016; 71:2547-52. [PMID: 27246239 DOI: 10.1093/jac/dkw172] [Citation(s) in RCA: 4] [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] [Received: 02/03/2016] [Accepted: 04/13/2016] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND Hepatic cyst infection is a potentially severe complication in cystic disease. Treatment demands effective antibiotic concentrations within the infected cyst. OBJECTIVES The aim of this study was to use elective hepatic cyst drainage as a unique pharmacokinetic model to investigate whether cefazolin, a first-generation cephalosporin, is able to penetrate hepatic cysts. PATIENTS AND METHODS Patients scheduled to undergo percutaneous aspiration sclerotherapy of a symptomatic non-infected, non-neoplastic hepatic cyst were eligible for this study. All participants received a single perioperative prophylactic dose of cefazolin (1000 mg, intravenously). We collected blood and cyst fluid samples to determine total and unbound cefazolin concentrations using HPLC. The primary outcome was hepatic cyst penetration, expressed as the ratio (%) of unbound concentration of cefazolin in cyst fluid to plasma (both in mg/L). RESULTS We included eight patients [male = 25%, median age = 60 years (IQR 54-75), median estimated glomerular filtration rate = 97 mL/min/1.73 m(2) (IQR 67-102) and median serum albumin = 40 g/L (IQR 37-40)]. We detected low concentrations of unbound cefazolin in cyst fluid (≤1.0 mg/L). The median plasma unbound cefazolin peak level (immediately after cefazolin administration) was 36.6 mg/L (IQR 23.7-54.1) and the level at the time of cyst fluid aspiration was 16.1 mg/L (IQR 13.0-20.1). In total, the hepatic cyst penetration of free cefazolin was only 2.2% (IQR 0.7-5.2). CONCLUSIONS We developed a study model to investigate the penetration of antibiotics into hepatic cysts. Cefazolin did not reach adequate intracystic concentrations. Future studies should explore alternatives.
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Affiliation(s)
- M A Lantinga
- Gastroenterology and Hepatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - T F M Wijnands
- Gastroenterology and Hepatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - R H M Te Morsche
- Gastroenterology and Hepatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - R G L de Sévaux
- Nephrology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - S Kuipers
- Medical Microbiology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - K Allegaert
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium Intensive Care and Department of Surgery, Erasmus MC-Sophia Children's Hospital, Rotterdam, The Netherlands
| | - D Burger
- Pharmacy, Radboud University Medical Center, Nijmegen, The Netherlands
| | - J P H Drenth
- Gastroenterology and Hepatology, Radboud University Medical Center, Nijmegen, The Netherlands
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Scanu A, Oliviero F, Gruaz L, Galozzi P, Luisetto R, Ramonda R, Burger D, Punzi L. Synovial fluid proteins are required for the induction of interleukin-1β production by monosodium urate crystals. Scand J Rheumatol 2016; 45:384-93. [DOI: 10.3109/03009742.2015.1124452] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- A Scanu
- Rheumatology Unit, Department of Medicine, University of Padova, Italy
| | - F Oliviero
- Rheumatology Unit, Department of Medicine, University of Padova, Italy
| | - L Gruaz
- Division of Immunology and Allergy, Inflammation and Allergy Research Group, Hans Wilsdorf Laboratory, University Hospital and Faculty of Medicine, University of Geneva, Switzerland
| | - P Galozzi
- Rheumatology Unit, Department of Medicine, University of Padova, Italy
| | - R Luisetto
- Department of Surgery, Oncology and Gastroenterology, University of Padova, Italy
| | - R Ramonda
- Rheumatology Unit, Department of Medicine, University of Padova, Italy
| | - D Burger
- Division of Immunology and Allergy, Inflammation and Allergy Research Group, Hans Wilsdorf Laboratory, University Hospital and Faculty of Medicine, University of Geneva, Switzerland
| | - L Punzi
- Rheumatology Unit, Department of Medicine, University of Padova, Italy
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Burger D, Dolivo G, Marti E, Sieme H, Wedekind C. Female major histocompatibility complex type affects male testosterone levels and sperm number in the horse (Equus caballus). Proc Biol Sci 2016; 282:20150407. [PMID: 25904670 DOI: 10.1098/rspb.2015.0407] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Odours of vertebrates often contain information about the major histocompatibility complex (MHC), and are used in kin recognition, mate choice or female investment in pregnancy. It is, however, still unclear whether MHC-linked signals can also affect male reproductive strategies. We used horses (Equus caballus) to study this question under experimental conditions. Twelve stallions were individually exposed either to an unfamiliar MHC-similar mare and then to an unfamiliar MHC-dissimilar mare, or vice versa. Each exposure lasted over a period of four weeks. Peripheral blood testosterone levels were determined weekly. Three ejaculates each were collected in the week after exposure to both mares (i.e. in the ninth week) to determine mean sperm number and sperm velocity. We found high testosterone levels when stallions were kept close to MHC-dissimilar mares and significantly lower ones when kept close to MHC-similar mares. Mean sperm number per ejaculate (but not sperm velocity) was positively correlated to mean testosterone levels and also affected by the order of presentation of mares: sperm numbers were higher if MHC-dissimilar mares were presented last than if MHC-similar mares were presented last. We conclude that MHC-linked signals influence testosterone secretion and semen characteristics, two indicators of male reproductive strategies.
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Affiliation(s)
- D Burger
- Swiss Institute of Equine Medicine, Agroscope and University of Berne, Avenches, Switzerland
| | - G Dolivo
- Swiss Institute of Equine Medicine, Agroscope and University of Berne, Avenches, Switzerland
| | - E Marti
- Department of Clinical Research, Vetsuisse Faculty, University of Berne, Berne, Switzerland
| | - H Sieme
- Unit for Reproductive Medicine-Clinic for Horses, University of Veterinary Medicine Hannover, Hannover, Germany
| | - C Wedekind
- Department of Ecology and Evolution, Biophore, University of Lausanne, Lausanne, Switzerland
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Schweizer C, Ramseyer A, Gerber V, Christen G, Burger D, Wohlfender FD. Retrospective evaluation of all recorded horse race starts in Switzerland during a four year period focusing on discipline-specific risk factors for clinical events. Equine Vet J 2015; 48:697-703. [DOI: 10.1111/evj.12515] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Accepted: 09/21/2015] [Indexed: 11/28/2022]
Affiliation(s)
- C. Schweizer
- Swiss Institute of Equine Medicine ISME; Agroscope and University of Berne; Switzerland
| | - A. Ramseyer
- Swiss Institute of Equine Medicine ISME; Agroscope and University of Berne; Switzerland
| | - V. Gerber
- Swiss Institute of Equine Medicine ISME; Agroscope and University of Berne; Switzerland
| | - G. Christen
- Swiss Institute of Equine Medicine ISME; Agroscope and University of Berne; Switzerland
| | - D. Burger
- Swiss Institute of Equine Medicine ISME; Agroscope and University of Berne; Switzerland
| | - F. D. Wohlfender
- Veterinary Public Health Institute; Vetsuisse Faculty; University of Berne; Switzerland
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Lauper M, Gerber V, Ramseyer A, Burger D, Lüth A, Koch C, Dolf G. Heritabilities of health traits in Swiss Warmblood horses. Equine Vet J 2015; 49:15-18. [PMID: 26538098 DOI: 10.1111/evj.12537] [Citation(s) in RCA: 2] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2015] [Accepted: 10/22/2015] [Indexed: 11/30/2022]
Abstract
REASONS FOR PERFORMING STUDY There is a lack of evidence regarding genetic parameters of health traits in Swiss Warmblood horses. OBJECTIVES To estimate heritabilities of equine sarcoid disease, horn quality of hooves, prognathism and increased filling of talocrural joints as a possible indicator for osteochondrosis in Swiss Warmblood horses examined at the field tests for 3-year-olds between 2005 and 2013. STUDY DESIGN Retrospective analysis of breed society database. METHODS Swiss Warmblood horses were examined clinically by 13 veterinarians at field tests in Switzerland between 2005 and 2013. The presence of sarcoids, horn quality of the hooves, incisor occlusion and increased joint filling were assessed and recorded. Records of 3715 horses were integrated in a pedigree comprising 217,282 horses. Variance components and heritabilities were estimated on the liability scale using multiple-trait Gibbs sampler for animal models (MTGSAM). RESULTS The prevalences of the examined traits were rather low ranging from 2.4 to 13.0%. Heritabilities estimated were 0.21 ± 0.07 for the occurrence of sarcoids, 0.04 ± 0.02 for hooves with markedly brittle and friable horn quality, 0.03 ± 0.01 for hooves with marked growth ring formation, 0.06 ± 0.03 for prognathism and 0.08 ± 0.04 for increased filling of the talocrural joint (an indicator of possible osteochondrosis). The influence of the examiner on the variance of these observations was considerable. CONCLUSIONS With the exception of equine sarcoid disease, estimates for the heritabilities for the traits examined here were low. A standardised examination protocol may reduce the variance due to the examiner.
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Affiliation(s)
- M Lauper
- Swiss Institute of Equine Medicine, University of Bern and Agroscope, Avenches, Switzerland
| | - V Gerber
- Swiss Institute of Equine Medicine, University of Bern and Agroscope, Avenches, Switzerland
| | - A Ramseyer
- Swiss Institute of Equine Medicine, University of Bern and Agroscope, Avenches, Switzerland
| | - D Burger
- Swiss Institute of Equine Medicine, University of Bern and Agroscope, Avenches, Switzerland
| | - A Lüth
- Zuchtverband Schweizer Sportpferde (ZVCH), Avenches, Switzerland
| | - C Koch
- Swiss Institute of Equine Medicine, University of Bern and Agroscope, Avenches, Switzerland
| | - G Dolf
- Institute of Genetics, University of Bern, Switzerland
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Kuhtreiber WM, Washer SLL, Hsu E, Zhao M, Reinhold P, Burger D, Zheng H, Faustman DL. Low levels of C-peptide have clinical significance for established Type 1 diabetes. Diabet Med 2015; 32:1346-53. [PMID: 26172028 PMCID: PMC4578991 DOI: 10.1111/dme.12850] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/03/2015] [Indexed: 01/07/2023]
Abstract
AIM To determine whether the low C-peptide levels (< 50 pmol/l) produced by the pancreas for decades after onset of Type 1 diabetes have clinical significance. METHODS We evaluated fasting C-peptide levels, duration of disease and age of onset in a large cross-sectional series (n = 1272) of people with Type 1 diabetes. We then expanded the scope of the study to include the relationship between C-peptide and HbA1c control (n = 1273), as well as diabetic complications (n = 324) and presence of hypoglycaemia (n = 323). The full range of C-peptide levels was also compared with 1,5-Anhydroglucitol, a glucose responsive marker. RESULTS C-peptide levels declined for decades after diagnosis, and the rate of decline was significantly related to age of onset (P < 0.0001), after adjusting for disease duration. C-peptide levels > 10 pmol/l were associated with protection from complications (e.g. nephropathy, neuropathy, foot ulcers and retinopathy; P = 0.03). Low C-peptide levels were associated with poor metabolic control measured by HbA1c (P < 0.0001). Severe hypoglycaemia was associated with the lowest C-peptide levels compared with mild (P = 0.049) or moderate (P = 0.04) hypoglycaemia. All levels of measurable C-peptide were responsive to acute fluctuations in blood glucose levels as assessed by 1,5-Anhydroglucitol (P < 0.0001). CONCLUSIONS Low C-peptide levels have clinical significance and appear helpful in characterizing groups at-risk for faster C-peptide decline, complications, poorer metabolic control and severe hypoglycaemia. Low C-peptide levels may be a biomarker for characterizing at-risk patients with Type 1 diabetes.
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Affiliation(s)
- W M Kuhtreiber
- Immunobiology Laboratory, Harvard Medical School and Massachusetts General Hospital, Boston, MA, USA
| | - S L L Washer
- Immunobiology Laboratory, Harvard Medical School and Massachusetts General Hospital, Boston, MA, USA
| | | | - M Zhao
- Immunobiology Laboratory, Harvard Medical School and Massachusetts General Hospital, Boston, MA, USA
| | - P Reinhold
- Immunobiology Laboratory, Harvard Medical School and Massachusetts General Hospital, Boston, MA, USA
| | - D Burger
- Immunobiology Laboratory, Harvard Medical School and Massachusetts General Hospital, Boston, MA, USA
| | - H Zheng
- Department of Biostatistics, Massachusetts General Hospital, Boston, MA, USA
| | - D L Faustman
- Immunobiology Laboratory, Harvard Medical School and Massachusetts General Hospital, Boston, MA, USA
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Burger D, Meroni G, Thomas S, Sieme H. Effects of ground semen collection on weight bearing on hindquarters, libido, and semen parameters in stallions. Theriogenology 2015; 84:687-92.e1. [PMID: 26050613 DOI: 10.1016/j.theriogenology.2015.04.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 11/04/2014] [Revised: 04/29/2015] [Accepted: 04/29/2015] [Indexed: 10/23/2022]
Abstract
Collection of semen on the ground from the standing stallion represents an alternative method to dummy mount semen collection and is of increasing popularity for sport stallions, males suffering from health problems, or in studs without a dummy or suitable mare at disposal. Our aim was to collect and compare spermatological and physiological data associated with traditional and ground semen collection. Twelve of 23 Franches-Montagnes stallions were selected to carry out semen collection on a dummy and while standing in a crossed experimental protocol. Semen quantity and quality parameters, weight bearing on hindquarters, and behavioral and libido data were recorded. Ground versus dummy mount semen collection was accompanied by lower seminal volume (15.9 ± 14.6 vs. 22.0 ± 13.3 mL; P < 0.01) and lower total sperm count (4.913 ± 2.721 × 10(9) vs. 6.544 ± 2.856 × 10(9) sperm; P < 0.001). No significant differences were found concerning sperm motility and viability. Time to ejaculation was longer, and the number of attempts to ejaculation was higher (P = 0.053) in the standing position compared with the mount on the dummy. A higher (P < 0.01) amount of tail flagging was manifested by the stallions during ejaculation on the dummy compared to when standing. There was no difference in weight bearing on hindquarters when comparing dummy collection (51.2 ± 2.5%) and standing collection (48.9 ± 5.5%). Ground semen collection can be considered as a viable option for stallions that cannot mount a dummy or a mare. However, it requires training and may be not easily accepted by all stallions. Owners should be advised that ground semen collection is associated with significantly lower sperm numbers than with dummy mount semen collection.
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Affiliation(s)
- D Burger
- Swiss Institute of Equine Medicine, Agroscope and University of Berne, Avenches, Switzerland.
| | - G Meroni
- Swiss Institute of Equine Medicine, Agroscope and University of Berne, Avenches, Switzerland; School of Agricultural, Forest and Food Sciences, Zollikofen, Switzerland
| | - S Thomas
- Swiss Institute of Equine Medicine, Agroscope and University of Berne, Avenches, Switzerland
| | - H Sieme
- Clinic for Horses, Unit for Reproductive Medicine, University of Veterinary Medicine Hanover, Hanover, Germany
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Federici M, Gerber V, Doherr MG, Klopfenstein S, Burger D. Association of skin problems with coat colour and white markings in three-year-old horses of the Franches-Montagnes breed. SCHWEIZ ARCH TIERH 2015; 157:391-8. [DOI: 10.17236/sat00026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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