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Thomas A, Ramananda Y, Mun K, Naren AP, Arora K. AC6 is the major adenylate cyclase forming a diarrheagenic protein complex with cystic fibrosis transmembrane conductance regulator in cholera. J Biol Chem 2018; 293:12949-12959. [PMID: 29903911 DOI: 10.1074/jbc.ra118.003378] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 05/29/2018] [Indexed: 01/08/2023] Open
Abstract
The World Health Organization(WHO) has reported a worldwide surge in cases of cholera caused by the intestinal pathogen Vibrio cholerae, and, combined, such surges have claimed several million lives, mostly in early childhood. Elevated cAMP production in intestinal epithelial cells challenged with cholera toxin (CTX) results in diarrhea due to chloride transport by a cAMP-activated channel, the cystic fibrosis transmembrane conductance regulator (CFTR). However, the identity of the main cAMP-producing proteins that regulate CFTR in the intestine and may be relevant for secretory diarrhea is unclear. Here, using RNA-Seq to identify the predominant AC isoform in mouse and human cells and extensive biochemical analyses for further characterization, we found that the cAMP-generating enzyme adenylate cyclase 6 (AC6) physically and functionally associates with CFTR at the apical surface of intestinal epithelial cells. We generated epithelium-specific AC6 knockout mice and demonstrated that CFTR-dependent fluid secretion is nearly abolished in AC6 knockout mice upon CTX challenge in ligated ileal loops. Furthermore, loss of AC6 function dramatically impaired CTX-induced CFTR activation in human and mouse intestinal spheroids. Our finding that the CFTR-AC6 protein complex is the key mediator of CTX-associated diarrhea may facilitate development of antidiarrheal agents to manage cholera symptoms and improve outcomes.
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Augsburger M, Sporkert F, Varlet V, Widmer C, Déglon J, Thomas A. Cannabis légal riche en CBD et cannabis illicite riche en THC en Suisse, peut-on différencier leur consommation dans le sang et l’urine ? TOXICOLOGIE ANALYTIQUE ET CLINIQUE 2018. [DOI: 10.1016/j.toxac.2018.04.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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203
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Joye T, Sidibe J, Déglon J, Karmime A, Sporkert F, Favrat B, Lescuyer P, Augsburger M, Thomas A. Évaluation du prélèvement de sang sur papier buvard analysé par UHPLC-HRMS pour le criblage large échelle de drogues et de médicaments. TOXICOLOGIE ANALYTIQUE ET CLINIQUE 2018. [DOI: 10.1016/j.toxac.2018.04.113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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204
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Cavée L, Blind A, Groza M, Thomas A, Cattelan J, Weber J, Rondeau-Lutz M. Arthralgies et éruption acrale : une forme bruyante de syndrome post-streptococcique peu connu, l’acrovésiculopustulose. Rev Med Interne 2018. [DOI: 10.1016/j.revmed.2018.03.113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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205
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Thomas A. Métabolomique et autres omiques en toxicologie : approches, applications et défis. TOXICOLOGIE ANALYTIQUE ET CLINIQUE 2018. [DOI: 10.1016/j.toxac.2018.04.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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206
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Déglon J, Lauer E, Sporkert F, Valois N, Favrat B, Thomas A, Augsburger M. Analyse du phosphatidyléthanol sur micro-prélèvement de sang séché : nouvel outil pour le suivi de la consommation d’alcool. TOXICOLOGIE ANALYTIQUE ET CLINIQUE 2018. [DOI: 10.1016/j.toxac.2018.04.050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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207
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Tang WW, McGee P, Lachin JM, Li DY, Hoogwerf B, Hazen SL, Nathan D, Zinman B, Crofford O, Genuth S, Brown‐Friday J, Crandall J, Engel H, Engel S, Martinez H, Phillips M, Reid M, Shamoon H, Sheindlin J, Gubitosi‐Klug R, Mayer L, Pendegast S, Zegarra H, Miller D, Singerman L, Smith‐Brewer S, Novak M, Quin J, Genuth S, Palmert M, Brown E, McConnell J, Pugsley P, Crawford P, Dahms W, Gregory N, Lackaye M, Kiss S, Chan R, Orlin A, Rubin M, Brillon D, Reppucci V, Lee T, Heinemann M, Chang S, Levy B, Jovanovic L, Richardson M, Bosco B, Dwoskin A, Hanna R, Barron S, Campbell R, Bhan A, Kruger D, Jones J, Edwards P, Bhan A, Carey J, Angus E, Thomas A, Galprin A, McLellan M, Whitehouse F, Bergenstal R, Johnson M, Gunyou K, Thomas L, Laechelt J, Hollander P, Spencer M, Kendall D, Cuddihy R, Callahan P, List S, Gott J, Rude N, Olson B, Franz M, Castle G, Birk R, Nelson J, Freking D, Gill L, Mestrezat W, Etzwiler D, Morgan K, Aiello L, Golden E, Arrigg P, Asuquo V, Beaser R, Bestourous L, Cavallerano J, Cavicchi R, Ganda O, Hamdy O, Kirby R, Murtha T, Schlossman D, Shah S, Sharuk G, Silva P, Silver P, Stockman M, Sun J, Weimann E, Wolpert H, Aiello L, Jacobson A, Rand L, Rosenzwieg J, Nathan D, Larkin M, Christofi M, Folino K, Godine J, Lou P, Stevens C, Anderson E, Bode H, Brink S, Cornish C, Cros D, Delahanty L, eManbey ., Haggan C, Lynch J, McKitrick C, Norman D, Moore D, Ong M, Taylor C, Zimbler D, Crowell S, Fritz S, Hansen K, Gauthier‐Kelly C, Service F, Ziegler G, Barkmeier A, Schmidt L, French B, Woodwick R, Rizza R, Schwenk W, Haymond M, Pach J, Mortenson J, Zimmerman B, Lucas A, Colligan R, Luttrell L, Lopes‐Virella M, Caulder S, Pittman C, Patel N, Lee K, Nutaitis M, Fernandes J, Hermayer K, Kwon S, Blevins A, Parker J, Colwell J, Lee D, Soule J, Lindsey P, Bracey M, Farr A, Elsing S, Thompson T, Selby J, Lyons T, Yacoub‐Wasef S, Szpiech M, Wood D, Mayfield R, Molitch M, Adelman D, Colson S, Jampol L, Lyon A, Gill M, Strugula Z, Kaminski L, Mirza R, Simjanoski E, Ryan D, Johnson C, Wallia A, Ajroud‐Driss S, Astelford P, Leloudes N, Degillio A, Schaefer B, Mudaliar S, Lorenzi G, Goldbaum M, Jones K, Prince M, Swenson M, Grant I, Reed R, Lyon R, Kolterman O, Giotta M, Clark T, Friedenberg G, Sivitz W, Vittetoe B, Kramer J, Bayless M, Zeitler R, Schrott H, Olson N, Snetselaar L, Hoffman R, MacIndoe J, Weingeist T, Fountain C, Miller R, Johnsonbaugh S, Patronas M, Carney M, Mendley S, Salemi P, Liss R, Hebdon M, Counts D, Donner T, Gordon J, Hemady R, Kowarski A, Ostrowski D, Steidl S, Jones B, Herman W, Martin C, Pop‐Busui R, Greene D, Stevens M, Burkhart N, Sandford T, Floyd J, Bantle J, Flaherty N, Terry J, Koozekanani D, Montezuma S, Wimmergren N, Rogness B, Mech M, Strand T, Olson J, McKenzie L, Kwong C, Goetz F, Warhol R, Hainsworth D, Goldstein D, Hitt S, Giangiacomo J, Schade D, Canady J, Burge M, Das A, Avery R, Ketai L, Chapin J, Schluter M, Rich J, Johannes C, Hornbeck D, Schutta M, Bourne P, Brucker A, Braunstein S, Schwartz S, Maschak‐Carey B, Baker L, Orchard T, Cimino L, Songer T, Doft B, Olson S, Becker D, Rubinstein D, Bergren R, Fruit J, Hyre R, Palmer C, Silvers N, Lobes L, Rath PP, Conrad P, Yalamanchi S, Wesche J, Bratkowksi M, Arslanian S, Rinkoff J, Warnicki J, Curtin D, Steinberg D, Vagstad G, Harris R, Steranchak L, Arch J, Kelly K, Ostrosaka P, Guiliani M, Good M, Williams T, Olsen K, Campbell A, Shipe C, Conwit R, Finegold D, Zaucha M, Drash A, Morrison A, Malone J, Bernal M, Pavan P, Grove N, Tanaka E, McMillan D, Vaccaro‐Kish J, Babbione L, Solc H, DeClue T, Dagogo‐Jack S, Wigley C, Ricks H, Kitabchi A, Chaum E, Murphy M, Moser S, Meyer D, Iannacone A, Yoser S, Bryer‐Ash M, Schussler S, Lambeth H, Raskin P, Strowig S, Basco M, Cercone S, Zinman B, Barnie A, Devenyi R, Mandelcorn M, Brent M, Rogers S, Gordon A, Bakshi N, Perkins B, Tuason L, Perdikaris F, Ehrlich R, Daneman D, Perlman K, Ferguson S, Palmer J, Fahlstrom R, de Boer I, Kinyoun J, Van Ottingham L, Catton S, Ginsberg J, McDonald C, Harth J, Driscoll M, Sheidow T, Mahon J, Canny C, Nicolle D, Colby P, Dupre J, Hramiak I, Rodger N, Jenner M, Smith T, Brown W, May M, Lipps Hagan J, Agarwal A, Adkins T, Lorenz R, Feman S, Survant L, White N, Levandoski L, Grand G, Thomas M, Joseph D, Blinder K, Shah G, Burgess D, Boniuk I, Santiago J, Tamborlane W, Gatcomb P, Stoessel K, Ramos P, Fong K, Ossorio P, Ahern J, Gubitosi‐Klug R, Meadema‐Mayer L, Beck C, Farrell K, Genuth S, Quin J, Gaston P, Palmert M, Trail R, Dahms W, Lachin J, Backlund J, Bebu I, Braffett B, Diminick L, Gao X, Hsu W, Klumpp K, Pan H, Trapani V, Cleary P, McGee P, Sun W, Villavicencio S, Anderson K, Dews L, Younes N, Rutledge B, Chan K, Rosenberg D, Petty B, Determan A, Kenny D, Williams C, Cowie C, Siebert C, Steffes M, Arends V, Bucksa J, Nowicki M, Chavers B, O'Leary D, Polak J, Harrington A, Funk L, Crow R, Gloeb B, Thomas S, O'Donnell C, Soliman E, Zhang Z, Li Y, Campbell C, Keasler L, Hensley S, Hu J, Barr M, Taylor T, Prineas R, Feldman E, Albers J, Low P, Sommer C, Nickander K, Speigelberg T, Pfiefer M, Schumer M, Moran M, Farquhar J, Ryan C, Sandstrom D, Williams T, Geckle M, Cupelli E, Thoma F, Burzuk B, Woodfill T, Danis R, Blodi B, Lawrence D, Wabers H, Gangaputra S, Neill S, Burger M, Dingledine J, Gama V, Sussman R, Davis M, Hubbard L, Budoff M, Darabian S, Rezaeian P, Wong N, Fox M, Oudiz R, Kim L, Detrano R, Cruickshanks K, Dalton D, Bainbridge K, Lima J, Bluemke D, Turkbey E, der Geest ., Liu C, Malayeri A, Jain A, Miao C, Chahal H, Jarboe R, Nathan D, Monnier V, Sell D, Strauch C, Hazen S, Pratt A, Tang W, Brunzell J, Purnell J, Natarajan R, Miao F, Zhang L, Chen Z, Paterson A, Boright A, Bull S, Sun L, Scherer S, Lopes‐Virella M, Lyons T, Jenkins A, Klein R, Virella G, Jaffa A, Carter R, Stoner J, Garvey W, Lackland D, Brabham M, McGee D, Zheng D, Mayfield R, Maynard J, Wessells H, Sarma A, Jacobson A, Dunn R, Holt S, Hotaling J, Kim C, Clemens Q, Brown J, McVary K. Oxidative Stress and Cardiovascular Risk in Type 1 Diabetes Mellitus: Insights From the DCCT/EDIC Study. J Am Heart Assoc 2018. [PMCID: PMC6015340 DOI: 10.1161/jaha.117.008368] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background
Hyperglycemia leading to increased oxidative stress is implicated in the increased risk for the development of macrovascular and microvascular complications in patients with type 1 diabetes mellitus.
Methods and Results
A random subcohort of 349 participants was selected from the
DCCT
/
EDIC
(Diabetes Control and Complications Trial/Epidemiology of Diabetes Interventions and Complications) cohort. This included 320 controls and 29 cardiovascular disease cases that were augmented with 98 additional known cases to yield a case cohort of 447 participants (320 controls, 127 cases). Biosamples from
DCCT
baseline, year 1, and closeout of
DCCT
, and 1 to 2 years post‐
DCCT
(
EDIC
years 1 and 2) were measured for markers of oxidative stress, including plasma myeloperoxidase, paraoxonase activity, urinary F
2α
isoprostanes, and its metabolite, 2,3 dinor‐8
iso
prostaglandin F
2α
. Following adjustment for glycated hemoblobin and weighting the observations inversely proportional to the sampling selection probabilities, higher paraoxonase activity, reflective of antioxidant activity, and 2,3 dinor‐8
iso
prostaglandin F
2α
, an oxidative marker, were significantly associated with lower risk of cardiovascular disease (−4.5% risk for 10% higher paraoxonase,
P
<0.003; −5.3% risk for 10% higher 2,3 dinor‐8
iso
prostaglandin F
2α
,
P
=0.0092). In contrast, the oxidative markers myeloperoxidase and F
2α
isoprostanes were not significantly associated with cardiovascular disease after adjustment for glycated hemoblobin. There were no significant differences between
DCCT
intensive and conventional treatment groups in the change in all biomarkers across time segments.
Conclusions
Heightened antioxidant activity (rather than diminished oxidative stress markers) is associated with lower cardiovascular disease risk in type 1 diabetes mellitus, but these biomarkers did not change over time with intensification of glycemic control.
Clinical Trial Registration
URL
:
https://www.clinicaltrials.gov
. Unique identifiers:
NCT
00360815 and
NCT
00360893.
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Patsikas M, Adamama-Moraitou K, Thomas A, Soultani C, Chrissogonidis I, Fotiadou A, Trikoupi G, Papadopoulou P, Ilia G, Kosmas P, Farmakis P. Pre- and post-treatment computed tomographic findings of a primary intranasal transmissible venereal tumor in a canine patient. J BIOL REG HOMEOS AG 2018; 32:571-576. [PMID: 29921382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A two-year-old, female intact, cross-breed dog presented with a two-month history of nasal discharge. Computed tomography (CT) demonstrated obliteration of both nasal cavities by soft tissue density, destruction of the nasal and ethmoidal turbinates, and lysis of the frontal and palatine bones and maxilla. Frontal sinuses and maxillary recesses were obscured by soft tissue/fluid density. Histopathological examination of the mass was diagnostic of transmissible venereal tumor. The dog was clinically normal 3 months after treatment initiation with vincristine sulphate and amoxicillin/clavulanate. Six months after the completion of treatment no mass-like lesion was demonstrated in CT sections. Nasal cavities, maxillary recesses and frontal sinuses were filled with air. The reticular turbinate nasal plexus appeared atrophic with focal loss of the nasal turbinates on both sides. The ethmoidal turbinates were well-defined; however, focal loss of turbinates was also seen. Lysis of the frontal and palatine bones were still evident.
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Dutra J, Mudge EM, Moothoo HL, Thomas A, Applequist WL, Brown PN. Phytochemical comparison of elderberry collections grown in Missouri. Am J Transl Res 2018. [DOI: 10.1055/s-0038-1644961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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210
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Polubothu S, Al-Olabi L, Dowsett K, Andrews K, Stadnik P, Knox R, Baird W, Glover M, Moss C, Thomas A, Biesecker L, Semple R, Patton E, Kinsler V. 755 Mosaic RAS/MAPK variants cause sporadic vascular malformations which respond to targeted therapy. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.765] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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211
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Wang D, Thomas A, Lindemann MD. 341 Supplementation of Sodium Bentonite Clay Did Not Alleviate the Negative Effect of Fumonisin B1 Contaminated Corn on Feed Preference and Nutrient Digestibility in Weanling Pigs. J Anim Sci 2018. [DOI: 10.1093/jas/sky073.338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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212
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Mukhopadhyay A, Dwarkanath P, Bhanji S, Devi S, Thomas A, Kurpad AV, Thomas T. Maternal intake of milk and milk proteins is positively associated with birth weight: A prospective observational cohort study. Clin Nutr ESPEN 2018; 25:103-109. [PMID: 29779803 DOI: 10.1016/j.clnesp.2018.03.125] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 12/19/2017] [Accepted: 03/17/2018] [Indexed: 11/28/2022]
Abstract
BACKGROUND A striking number of low birth weight (LBW) Indian babies are born annually. Previous studies have confirmed the positive association between milk intake and birth weight. However, the relations between protein and vitamin B12 from milk and birth weight have not been systematically explored. AIMS We examined the relations between birth weight and maternal intake of milk, protein from milk and vitamin B12 from milk. METHODS This prospective, observational cohort study was conducted in an urban South Indian hospital. The dietary intakes of milk and milk products were assessed using validated food frequency questionnaire and at delivery birth outcomes were measured. The relations between milk products, milk protein, and vitamin B12 from milk with birth weight and gestational weight gain were assessed in 2036 births with first trimester dietary and delivery data. RESULTS Median consumption of milk products in the first trimester was 310 g·day-1 and average birth weight was 2876 g. Birth weight was positively associated with intake of milk products and of % protein from milk products (%milk protein) in the first trimester [β = 86.8, 95% confidence interval (CI): 29.1, 144.6; β = 63.1, 95% CI: 10.8, 115.5; P < 0.001 for both]. Intake of milk products and of %milk protein in the third trimester was positively associated with gestational weight gain (GWG) between the second and third trimester (One-way ANOVA, P < 0.001 and = 0.001, respectively). Neither birth weight nor GWG were associated with %vitamin B12 from milk products. CONCLUSIONS These findings indicate that intake of milk products in the first trimester and especially, protein from milk products is positively associated with birth weight in this South Asian Indian population.
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Verhaegen C, Lepropre S, Octave M, Kautbally S, Thomas A, Reuter S, Scarcello E, Lison D, Bertrand L, Delannay L, Jacques P, Beauloye C, Horman S, Kefer J. Fe-based bioresorbable alloy inhibits platelet activation. ARCHIVES OF CARDIOVASCULAR DISEASES SUPPLEMENTS 2018. [DOI: 10.1016/j.acvdsp.2018.02.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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214
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Marek-Iannucci S, Taylor D, Thomas A, Tucker K, Andres A, Czer L, Gottlieb R. Hyperlipidemia Impairs Autophagy in Chronic Heart Failure. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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215
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Kunjuraman B, Kamyab R, Bourke A, Thomas A. PO12 Salivary gland type carcinoma arising from recurrent pleomorphic adenoma-like tumour of the breast. Breast 2018. [DOI: 10.1016/j.breast.2018.02.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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Lavie C, Rollot F, Durand-Dubief F, Marignier R, Ionescu I, Casey R, Moreau T, Tourniaire P, Hutchinson M, D’Hooghe MB, Laplaud DA, Clavelou P, De Sèze J, Debouverie M, Brassat D, Pelletier J, Lebrun-Frenay C, Le Page E, Castelnovo G, Berger E, Hautecoeur P, Heinzlef O, Durelli L, Clerico M, Trojano M, Patti F, Vukusic S, Alpérovitch A, Carton H, d’Hooghe M, Hommes O, Hutchinson M, Adeleine P, Biron A, Cortinovis-Tourniaire P, Grimaud J, Hours M, Moreau T, Vukusic S, Confavreux C, Chauplannaz G, Confavreux C, Cortinovis-Tourniaire P, Grimaud J, Latombe D, Moreau T, Clanet M, Lau G, Rumbach L, Goas J, Rouhart F, Mazingue A, Roullet E, Madigand M, Hautecoeur P, Brunet P, Edan G, Allaire C, Riffault G, Leche J, Benoit T, Simonin C, Ziegler F, Baron J, Rivrain Y, Dumas R, Loche D, Bourrin J, Huttin B, Delisse B, Gibert I, Boulay C, Verceletto M, Durand G, Bonneviot G, Gil R, Hedreville M, Belair C, Poitevin R, Devoize J, Wyremblewski P, Delestre F, Setiey A, Comi G, Filippi M, Ghezzi A, Martinelli V, Rossi P, Zaffaroni M, Tola M, Amato M, Fioretti C, Meucci G, Inglese M, Mancardi G, Gambi D, Thomas A, Cavazzuti M, Citterio A, Heltberg A, Hansen H, Fernandez O, Romero F, Arbizu T, Hernandez J, De Andres de Frutos C, Geffner Sclarky D, Aladro Benito Y, Reyes Yanes P, Aguilar M, Burguera J, Yaya R, Bonakim Dib W, Arzua-Mouronte D, d’Hooghe M, Sindic C, Carton H, Medaer R, Roose H, Geens K, Guillaume D, Van Zandycke M, Janssens J, Cornette M, Mol L, Weilbach F, Flachenecker P, Hartung H, Haas J, Tendolkar I, Sindrn E, Kölmel H, Reichel D, Rauch M, Preuss S, Poser S, Mauch E, Strausser-Fuchs S, Kolleger H, Hawkins S, Howell S, Rees J, Thompson A, Johnson M, Boggild M, Gregory R, Bates D, Bone I, Hutchinson M, Polman C, Frequin S, Jongen P, Hommes O, Correia de Sa J, Rio M, Huber S, Lechner-Scott J, Kappos L, Ionescu I, Cornu C, Confavreux C, Vukusic S, El-Etr M, Baulieu E, El-Etr M, Schumacher M, Ionescu I, Confavreux C, Cornu C, Vukusic S, Hartung H, Miller D, Hutchinson M, Pugeat M, d’Archangues C, Conard J, Ménard J, Sitruk-Ware R, Pelissier C, Dat S, Belaïsch-Allard J, Athéa N, Büschsenschutz D, Lyon-Caen O, Gonsette R, Boissel J, Ffrench P, Durand-Dubief F, Cotton F, Pachai C, Bracoud L, Vukusic S, Ionescu I, Androdias G, Marignier R, Chauplannaz G, Laplaud D, Wiertlewski S, Lanctin-Garcia C, Moreau T, Couvreur G, Madinier G, Clavelou P, Taithe F, Aufauvre D, Guy N, Ferrier A, De Sèze J, Collongues N, Debouverie M, Viala F, Brassat D, Gerdelat-Mas A, Henry P, Pelletier J, Rico-Lamy A, Lebrun-Frenay C, Lepage E, Deburghraeve V, Edan G, Castelnovo G, Berger E, Hautecoeur P, Blondiau M, Heinzlef O, Coustans M, Clerc C, Rieu L, Lauxerois M, Hinzelin G, Ouallet J, Minier D, Vion P, Gromaire-Fayolle N, Derache N, Thouvenot E, Sallansonnet-Froment M, Tourniaire P, Toureille L, Borgel F, Stankoff B, Grimaud J, Moroianu C, Guennoc A, Tournier-Gervason C, Peysson S, Trojano M, Patti F, D’Amico E, Motti L, Zaffaroni M, Durelli L, Tavella A. Neuraxial analgesia is not associated with an increased risk of post-partum relapses in MS. Mult Scler 2018; 25:591-600. [DOI: 10.1177/1352458518763080] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Background: Obstetrical analgesia remains a matter of controversy because of the fear of neurotoxicity of local anesthetics on demyelinated fibers or their potential relationship with subsequent relapses. Objective: To assess the impact of neuraxial analgesia on the risk of relapse during the first 3 months post-partum, with a focus on women who experienced relapses during pregnancy. Methods: We analyzed data of women followed-up prospectively during their pregnancies and at least 3 months post-partum, collected in the Pregnancy in Multiple Sclerosis (PRIMS) and Prevention of Post-Partum Relapses with Progestin and Estradiol in Multiple Sclerosis (POPARTMUS) studies between 1992–1995 and 2005–2012, respectively. The association of neuraxial analgesia with the occurrence of a post-partum relapse was estimated by logistic regression analysis. Results: A total of 389 women were included, 215 from PRIMS and 174 from POPARTMUS. In total, 156 women (40%) had neuraxial analgesia. Overall, 24% experienced a relapse during pregnancy and 25% in the 3 months post-partum. Women with a pregnancy relapse were more likely to have a post-partum relapse (odds ratio (OR) = 1.83, p = 0.02), independently of the use of neuraxial analgesia. There was no association between neuraxial analgesia and post-partum relapse (OR = 1.08, p = 0.78). Conclusion: Neuraxial analgesia was not associated with an increased risk of post-partum relapses, whatever multiple sclerosis (MS) activity during pregnancy.
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Pecenin MF, Borges-Pereira L, Levano-Garcia J, Budu A, Alves E, Mikoshiba K, Thomas A, Garcia CRS. Blocking IP 3 signal transduction pathways inhibits melatonin-induced Ca 2+ signals and impairs P. falciparum development and proliferation in erythrocytes. Cell Calcium 2018; 72:81-90. [PMID: 29748136 DOI: 10.1016/j.ceca.2018.02.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 02/19/2018] [Accepted: 02/20/2018] [Indexed: 10/17/2022]
Abstract
Inositol 1,4,5 trisphosphate (IP3) signaling plays a crucial role in a wide range of eukaryotic processes. In Plasmodium falciparum, IP3 elicits Ca2+ release from intracellular Ca2+ stores, even though no IP3 receptor homolog has been identified to date. The human host hormone melatonin plays a key role in entraining the P. falciparum life cycle in the intraerythrocytic stages, apparently through an IP3-dependent Ca2+ signal. The melatonin-induced cytosolic Ca2+ ([Ca2+]cyt) increase and malaria cell cycle can be blocked by the IP3 receptor blocker 2-aminoethyl diphenylborinate (2-APB). However, 2-APB also inhibits store-operated Ca2+ entry (SOCE). Therefore, we have used two novel 2-APB derivatives, DPB162-AE and DPB163-AE, which are 100-fold more potent than 2-APB in blocking SOCE in mammalian cells, and appear to act by interfering with clustering of STIM proteins. In the present work we report that DPB162-AE and DPB163-AE block the [Ca2+]cyt rise in response to melatonin in P. falciparum, but only at high concentrations. These compounds also block SOCE in the parasite at similarly high concentrations suggesting that P. falciparum SOCE is not activated in the same way as in mammalian cells. We further find that DPB162-AE and DPB163-AE affect the development of the intraerythrocytic parasites and invasion of new red blood cells. Our efforts to episomally express proteins that compete with native IP3 receptor like IP3-sponge and an IP3 sensor such as IRIS proved to be lethal to P. falciparum during intraerythrocytic cycle. The present findings point to an important role of IP3-induced Ca2+ release in intraerythrocytic stage of P. falciparum.
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Uldall R, Besley M, Thomas A, Salter S, Nuezca L, Vas M. Maintaining the Patency of Double-Lumen Silastic Jugular Catheters for Haemodialysis. Int J Artif Organs 2018. [DOI: 10.1177/039139889301600108] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A system has been developed for maintaining the patency of double lumen silastic jugular catheters in patients with refractory vascular access problems. Most patients receive a small daily dose of aspirin. Selected patients also receive warfarin to maintain a prothrombin time (PT) of 15, 20, or 30 seconds. Inadequate blood flow due to thrombus obstruction can be overcome by the intravenous administration of urokinase, 250.000 units. This can be administered safely to outpatients provided that heparin is not given simultaneously. Occasionally a second dose may be required. By adopting this policy all catheter obstructions have been overcome. The danger of iatrogenic bleeding cannot be discounted. Warfarin therapy must be very closely monitored.
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Besley M, Thomas A, Salter S, Sang Y, Vas M, Uldall P. Control of Oral Anticoagulation in Patients Using Long-Term Internal Jugular Catheters for Haemodialysis Access. Int J Artif Organs 2018. [DOI: 10.1177/039139889201500504] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Patients using long-term double-lumen silastic jugular catheters for haemodialysis access frequently require oral anticoagulants to maintain patency of the catheter. It may be difficult or impossible to obtain peripheral vein blood samples for PT measurements to regulate the oral anticoagulant dose. Our studies have shown that removal of 3 mis of blood from the catheter limb containing the heparin (to be discarded) followed by 10 mis as a heparin wash-out (to be returned to the patient) allows blood to be taken from the arterial limb of the catheter for PT measurement. The PT measurement obtained from the arterial limb after a 10 ml wash-out is nearly always identical with the PT measurement on blood obtained from a peripheral vein. If the simultaneously measured aPTT is normal the PT is predictably and consistently accurate. If the aPTT is raised due to traces of residual heparin then the PT may be inaccurate and should be repeated. This method is easy and reliable and can be recommended as an aid to regulation of the oral anticoagulant dose
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Couch FJ, Shimelis H, Hart SN, Moore RM, Thomas A, Lipton GB, Iversen E. Abstract GS4-06: Cancer risks and response to targeted therapy associated with BRCA2 variants of uncertain significance. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-gs4-06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Germline genetic testing of individuals with a diagnosis of triple negative breast cancer, young age at diagnosis, or a family history of breast and/or ovarian cancer has led to the identification of many unique BRCA2 missense variants of uncertain significance (VUS). VUS in BRCA2 are predominantly missense mutations that have unclear relevance to breast, ovarian, and other cancers. Thus, patients found to have a germline BRCA2 VUS do not know if the variant is associated with high risks of these cancers similar to truncating mutations, intermediate risks more similar to CHEK2 mutations, or low risks of no clinical significance. Furthermore, it is unclear if germline BRCA2 VUS, or somatic VUS identified by tumor sequencing, are associated with hypersensitivity to selected DNA damaging and cross-linking agents.
Methods: We have used a homology directed repair (HDR) cell-based assay to characterize missense variants in the DNA binding domain (DBD) of BRCA2. The method has been validated using known pathogenic and known non-pathogenic BRCA2 missense variants and has 100% sensitivity (95% confidence interval (CI): 75.3%–100%) and 100% specificity (95% CI: 81.5%–100%) for pathogenic BRCA2 variants. A classifier of variant pathogenicity based on the mean and variances of the distributions of the HDR results of the known pathogenic and neutral variants has been established. We have also developed PARP inhibitor and cisplatin drug response assays for BRCA2 missense variants.
Results: Assessment of 207 BRCA2 missense variants, identified in public databases such as BRCA exchange and ClinVar, by the HDR assay identified 71 deleterious variants with >99% probability of pathogenicity, 116 neutral variants with >99% probability of neutrality, and 20 with hypomorphic activity and potentially intermediate risk. A combination of the functional data and sequence-based predictors of protein activity in a Bayesian prediction model resulted in classification of the deleterious variants as pathogenic cancer predisposing variants and the neutral variants as non-pathogenic with low clinical significance. The influence of the deleterious/pathogenic variants on PARPi and cisplatin response was also assessed.
Conclusion: The HDR assay is effective for characterization of BRCA2 VUS. The combination of functional data and in silico prediction models provides a robust tool for clinical annotation of BRCA2 VUS. HDR function of BRCA2 missense variants is strongly correlated with response to targeted therapy.
Citation Format: Couch FJ, Shimelis H, Hart SN, Moore RM, Thomas A, Lipton GB, Iversen E. Cancer risks and response to targeted therapy associated with BRCA2 variants of uncertain significance [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr GS4-06.
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Selvi H, Unsuree N, Whittaker E, Halsall MP, Hill EW, Thomas A, Parkinson P, Echtermeyer TJ. Towards substrate engineering of graphene-silicon Schottky diode photodetectors. NANOSCALE 2018; 10:3399-3409. [PMID: 29388650 DOI: 10.1039/c7nr09591k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Graphene-silicon Schottky diode photodetectors possess beneficial properties such as high responsivities and detectivities, broad spectral wavelength operation and high operating speeds. Various routes and architectures have been employed in the past to fabricate devices. Devices are commonly based on the removal of the silicon-oxide layer on the surface of silicon by wet-etching before deposition of graphene on top of silicon to form the graphene-silicon Schottky junction. In this work, we systematically investigate the influence of the interfacial oxide layer, the fabrication technique employed and the silicon substrate on the light detection capabilities of graphene-silicon Schottky diode photodetectors. The properties of devices are investigated over a broad wavelength range from near-UV to short-/mid-infrared radiation, radiation intensities covering over five orders of magnitude as well as the suitability of devices for high speed operation. Results show that the interfacial layer, depending on the required application, is in fact beneficial to enhance the photodetection properties of such devices. Further, we demonstrate the influence of the silicon substrate on the spectral response and operating speed. Fabricated devices operate over a broad spectral wavelength range from the near-UV to the short-/mid-infrared (thermal) wavelength regime, exhibit high photovoltage responses approaching 106 V W-1 and short rise- and fall-times of tens of nanoseconds.
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Vlachodimitropoulou E, Thomas A, Shah F, Kyei-Mensah A. Pregnancy and iron status in β-thalassaemia major and intermedia: six years' experience in a North London Hospital. J OBSTET GYNAECOL 2018; 38:567-570. [PMID: 29390937 DOI: 10.1080/01443615.2017.1342616] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Gilling P, Barber N, Bidair M, Anderson P, Sutton M, Aho T, Kramolowsky E, Thomas A, Cowan B, Kaufman RP, Trainer A, Arther A, Badlani G, Plante M, Desai M, Doumanian L, Te AE, DeGuenther M, Roehrborn C. WATER: A Double-Blind, Randomized, Controlled Trial of Aquablation ® vs Transurethral Resection of the Prostate in Benign Prostatic Hyperplasia. J Urol 2018; 199:1252-1261. [PMID: 29360529 DOI: 10.1016/j.juro.2017.12.065] [Citation(s) in RCA: 135] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/29/2017] [Indexed: 12/31/2022]
Abstract
PURPOSE We compared the safety and efficacy of Aquablation and transurethral prostate resection for the treatment of lower urinary tract symptoms related to benign prostatic hyperplasia. MATERIALS AND METHODS In a double-blind, multicenter, prospective, randomized, controlled trial 181 patients with moderate to severe lower urinary tract symptoms related to benign prostatic hyperplasia underwent transurethral prostate resection or Aquablation. The primary efficacy end point was the reduction in International Prostate Symptom Score at 6 months. The primary safety end point was the development of Clavien-Dindo persistent grade 1, or 2 or higher operative complications. RESULTS Mean total operative time was similar for Aquablation and transurethral prostate resection (33 vs 36 minutes, p = 0.2752) but resection time was lower for Aquablation (4 vs 27 minutes, p <0.0001). At month 6 patients treated with Aquablation and transurethral prostate resection experienced large I-PSS improvements. The prespecified study noninferiority hypothesis was satisfied (p <0.0001). Of the patients who underwent Aquablation and transurethral prostate resection 26% and 42%, respectively, experienced a primary safety end point, which met the study primary noninferiority safety hypothesis and subsequently demonstrated superiority (p = 0.0149). Among sexually active men the rate of anejaculation was lower in those treated with Aquablation (10% vs 36%, p = 0.0003). CONCLUSIONS Surgical prostate resection using Aquablation showed noninferior symptom relief compared to transurethral prostate resection but with a lower risk of sexual dysfunction. Larger prostates (50 to 80 ml) demonstrated a more pronounced superior safety and efficacy benefit. Longer term followup would help assess the clinical value of Aquablation.
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Kümmel S, Eggemann H, Lüftner D, Gebauer N, Bühler H, Schaller G, Schmid P, Kreienberg R, Emons G, Kriner M, Elling D, Blohmer JU, Thomas A. Significant Changes in Circulating Plasma Levels of IGF1 and IGFBP3 after Conventional or Dose-Intensified Adjuvant Treatment of Breast Cancer Patients with one to three Positive Lymph Nodes. Int J Biol Markers 2018; 22:186-93. [DOI: 10.1177/172460080702200304] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The insulin-like growth factor 1 (IGF1) and its binding protein IGFBP3 (insulin-like growth factor binding protein 3) play a pivotal role during the growth and development of tissues. The purpose of this study was to evaluate the influence of anthracycline- and taxane-containing adjuvant chemotherapy in breast cancer patients on the circulating plasma levels of IGF1 and its main binding protein, IGFBP3. This investigation was part of a prospective randomized phase III study in which breast cancer patients were treated with either conventional or dose-intensified adjuvant chemotherapy. The factors were quantified in the plasma of 151 patients with a commercially available sandwich enzyme immunoassay. Before therapy, both parameters were within the normal range in most patients (n=145 and n=144). After therapy, both factors had increased significantly by 29% (IGF1) and 19% (IGFBP3), with the highest increase being observed in the dose-intensified group. Correlations with patient and tumor characteristics revealed a relatively higher increase in both parameters in premenopausal patients, patients with lower-grade tumors, more positive lymph nodes, larger tumor volume, and positive hormone receptor status. No correlation was found with the HER2 expression of the tumors.
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Thomas A, Katsabouris G, Bouras N. Staff perception on reduction of medication in patients with chronic schizophrenia. PSYCHIATRIC BULLETIN 2018. [DOI: 10.1192/pb.21.11.692] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This exploratory study assessed staff perceptions to the reduction of maintenance neuroleptic medication in patients with chronic schizophrenia living in a long-stay hospital. Ten in-patients were assessed at regular times over six months. In addition to the Brief Psychiatric Rating Scale (BPRS), data were obtained from nursing staff on patients' ward behaviour (Ward Behaviour Interview Schedule, WBIS), clinical global opinion (CGI) and staff reaction (SR) to the reduction of medication plan. The average decrease of BPRS and WBIS was not related to keyworker's clinical global impression. The SR increased against the reduction of medication over the study period (P<0.05). Staff perceptions in the treatment of patients with chronic schizophrenia and their possible influence on prescribed closes should be taken into consideration in addition to psychopathology and clinical symptoms.
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Mohamed R, Storelli F, Sidibe J, Bararpour N, Desmeules J, Ausburger M, Daali Y, Thomas A. Detection and Identification of Reactive Drug Metabolites Leading to Idiosyncratic Toxicity: Lapatinib as a Case Example. ACTA ACUST UNITED AC 2018. [DOI: 10.4172/2157-7609.1000242] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Hamdi H, Majdoub-Mathlouthi L, Durand D, Thomas A, Kraiem K. Effects of olive-cake supplementation on fatty acid composition, antioxidant status and lipid and meat-colour stability of Barbarine lambs reared on improved rangeland plus concentrates or indoors with oat hay plus concentrates. ANIMAL PRODUCTION SCIENCE 2018. [DOI: 10.1071/an16352] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The effects of feeding system (indoor vs rangeland) and olive-cake (OC) supplementation (control vs supplemented) on fatty acid (FA) composition, lipid oxidation status and meat-colour stability were studied. Lambs were fed indoor with hay (OH) or reared on improved rangeland (RL). All lambs received concentrate at a rate of 400 g/head.day. Twenty-four 6-month-old Barbarine lambs with an average weight of 24.3 ± 1.1 kg were assigned into the following four groups: OH without OC, OH with OC, RL without OC and RL with OC. Supplemented groups received 280 g/day of OC. Lambs were reared for ~3 months and then slaughtered at 33 kg. Feeding lambs on rangeland increased proportions of polyunsaturated fatty acids (PUFA, P < 0.05), n-3 PUFA (P < 0.01) and long-chain n-3 PUFA (P < 0.01) and decreased those of C16:0 and monounsaturated fatty acids (P = 0.052). Higher PUFA : saturated FA (SFA) (P < 0.001) and lower n-6 : n-3 PUFA (P < 0.01) ratios were found for RL lambs. The peroxidisability index was higher (P = 0.024) for RL lambs. Whereas, a lower malondialdehyde concentration (P < 0.001) was found for meat of RL group after 5-day storage, because of a higher vitamin E concentration (P < 0.001) and catalase activity (P = 0.002). Moreover, colour was more stable for meat of RL lamb. OC supplementation reduced only superoxide dismutase activity (P = 0.033) and did not have any effect on lipid peroxidation and colour stability. No interactions were noted between the feeding system and olive-cake supplementation. Meat lambs produced on rangeland had a healthier fatty acid composition. Lipids were more stable to oxidation than was meat produced indoor with hay and concentrate.
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Biswas A, Ensikat H, Schmitt U, Horneff S, Pavlova A, Poetzsch B, Oldenburg J, Ivaškevičius V, Thomas A. A novel fibrinogen γ chain frameshift deletion (c.637delT) in a patient with hypodysfibrinogenemia associated with thrombosis. Hamostaseologie 2017. [DOI: 10.1055/s-0037-1619826] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
Abstract
SummaryInherited fibrinogen (FG) disorders are rare and result in quantitative or/and qualitative FG deficiency. While the majority of patients with clinically relevant FG deficiencies demonstrate a bleeding phenotype, a subset of patients are at increased risk of thrombosis.We report a 54-years old man presenting with a thrombophilic phenotype characterized by two episodes of unprovoked venous thrombosis and a deep vein thrombosis several weeks after myocardial infarction. Recently, he developed A. carotis communis thrombosis and died. Coagulation tests were done using standard procedures. FG genes were screened using direct sequencing. Effect on fibrin clot structure was analyzed by scanning electron microscopy (SEM) and FG chain polymerization was analysed using SDS-PAGE.While thrombophilia testing was negative, we found a decreased concentration of clottable FG (126-148 mg/dl) compared to FG antigen (182-194 mg/dl of normal). The thrombin time was slightly prolonged, while aPTT and reptilase time were within the normal range. A novel deletion in FGG gene (c.637delT) resulting in a frameshift and the premature termination of the γ chain at amino acid position p.228 was identified. SDS-PAGE showed a time-shift in γ-γ and α-α cross linking. SEM showed no statistically significant differences between the patient´s and a healthy control´s fibrin clot structure.In addition to the reduction of FG concentration expected by the nature of the mutation also a functional defect (hypodysfibrinogenemia) was found. Moreover this mutation seems to increase the risk of thrombosis warranting long term anticoagulation possibly in a combination with antiplatelet drugs.
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Dow B, Pelly SJ, McIntosh E, Reading S, Lowe GDO, Gibson B, Cachia P, Thomas A, Dennis R, Ludlam CA, Prowse C. Human Parvovirus B19 Infection in Persons with Haemophilia. Thromb Haemost 2017. [DOI: 10.1055/s-0037-1615208] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Thomas A, McClellan C, Cramp F. Pulsed shortwave therapy (PSWT) for acute bleed management in people with haemophilia. Semi-structured interviews to explore patient's views. Physiotherapy 2017. [DOI: 10.1016/j.physio.2017.11.061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Thomas A, McClellan C, Cramp F. Pulsed shortwave therapy for patients with haemophilia – a systematic review of the literature and national survey of physiotherapy departments. Physiotherapy 2017. [DOI: 10.1016/j.physio.2017.11.046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Kohnert KD, Heinke P, Vogt L, Augstein P, Thomas A, Salzsieder E. Associations of blood glucose dynamics with antihyperglycemic treatment and glycemic variability in type 1 and type 2 diabetes. J Endocrinol Invest 2017; 40:1201-1207. [PMID: 28484994 DOI: 10.1007/s40618-017-0682-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 04/26/2017] [Indexed: 12/20/2022]
Abstract
AIMS The dynamical structure of glucose fluctuation has largely been disregarded in the contemporary management of diabetes. METHODS In a retrospective study of patients with diabetes, we evaluated the relationship between glucose dynamics, antihyperglycemic therapy, glucose variability, and glucose exposure, while taking into account potential determinants of the complexity index. We used multiscale entropy (MSE) analysis of continuous glucose monitoring data from 131 subjects with type 1 (n = 18), type 2 diabetes (n = 102), and 11 nondiabetic control subjects. We compared the MSE complexity index derived from the glucose time series among the treatment groups, after adjusting for sex, age, diabetes duration, body mass index, and carbohydrate intake. RESULTS In type 2 diabetic patients who were on a diet or insulin regimen with/without oral agents, the MSE index was significantly lower than in nondiabetic subjects but was lowest in the type 1 diabetes group (p < 0.001). The decline in the MSE complexity across the treatment groups correlated with increasing glucose variability and glucose exposure. Statistically, significant correlations existed between higher MSE complexity indices and better glycemic control. In multivariate regression analysis, the antidiabetic therapy was the most powerful predictor of the MSE (β = -0.940 ± 0.242, R 2 = 0.306, p < 0.001), whereas the potential confounders failed to contribute. CONCLUSIONS The loss of dynamical complexity in glucose homeostasis correlates more closely with therapy modalities and glucose variability than with clinical measures of glycemia. Thus, targeting the glucoregulatory system by adequate therapeutic interventions may protect against progressive worsening of diabetes control.
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Roper N, Zhang X, Maity T, Gao S, Venugopalan A, Biswas R, Cultraro C, Kim C, Padiernos E, Rajan A, Thomas A, Hassan R, Kleiner D, Hewitt S, Khan J, Guha U. P1.02-063 Tumor Heterogeneity Analyzes by Integrated Proteo-Genomics of Thoracic Tumors from Sequential Biopsies and Warm Autopsies. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Bolten K, Fischer T, Bender YYN, Diederichs G, Thomas A. Pilot study of MRI/ultrasound fusion imaging in postpartum assessment of Cesarean section scar. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2017; 50:520-526. [PMID: 27804175 DOI: 10.1002/uog.17349] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 09/17/2016] [Accepted: 10/21/2016] [Indexed: 06/06/2023]
Abstract
OBJECTIVE To evaluate prospectively the uterine scar after Cesarean section (CS) and the corresponding uterine region after vaginal delivery (VD) at 6 weeks postpartum using transabdominal (TAS) and transvaginal (TVS) sonography with magnetic resonance imaging (MRI) fusion to investigate whether fusion imaging allows standardized and reproducible identification of the scar location and measurement of uterine wall thickness compared with high-resolution MRI alone. METHODS Pelvic MRI was performed 6 weeks after delivery in 30 women (10 with planned CS (PCS), 10 with emergency CS (ECS) and 10 with VD). After transfer of MRI-DICOM datasets to the ultrasound system, the scar region after CS and the corresponding uterine region after VD were examined by TAS (5 MHz) and TVS (10 MHz) using smart fusion with MRI to guide visualization of the region in the corresponding sectional planes for both modalities. Vascularization of the scar region was determined as a percentage area using power Doppler ultrasound. Anterior (AW) and posterior (PW) uterine wall thickness was measured using TAS and TVS with fusion imaging and using MRI alone. RESULTS TVS with fusion imaging was applied successfully for uterine assessment at the end of the postpartum period in all women. TAS failed to identify the scar area in three women. Imaging techniques were similar in the evaluation of AW and PW thickness following VD. MRI and MRI/TVS fusion showed significant differences in AW thickness or scar area, in terms of the difference relative to PW thickness, in women with PCS and ECS (MRI: PCS, 4.3 mm; ECS, 4.2 mm; VD, 0.8 mm; P = 0.034; MRI/TVS fusion: PCS, 2.0 mm; ECS, 3.3 mm; VD, 0.0 mm; P = 0.01). The degree of vascularization in the scar region measured by power Doppler ultrasound was lower after PCS (13.1 ± 9.4%/area) and ECS (17.0 ± 8.2%/area) than after VD (34.6 ± 8.5%/area; P = 0.0017). CONCLUSION MRI/ultrasound fusion imaging can be performed in a reproducible manner for examination of the postpartum uterus. MRI/TVS fusion enables standardized identification of the CS scar location and vascularization is reduced in this area. Copyright © 2016 ISUOG. Published by John Wiley & Sons Ltd.
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St-Gallay SA, Bennett N, Critchlow SE, Curtis N, Davies G, Debreczeni J, Evans N, Hardern I, Holdgate G, Jones NP, Leach L, Maman S, McLoughlin S, Preston M, Rigoreau L, Thomas A, Turnbull AP, Walker G, Walsh J, Ward RA, Wheatley E, Winter-Holt J. A High-Throughput Screening Triage Workflow to Authenticate a Novel Series of PFKFB3 Inhibitors. SLAS DISCOVERY 2017; 23:11-22. [DOI: 10.1177/2472555217732289] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A high-throughput screen (HTS) of human 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 3 (PFKFB3) resulted in several series of compounds with the potential for further optimization. Informatics was used to identify active chemotypes with lead-like profiles and remove compounds that commonly occurred as actives in other HTS screens. The activities were confirmed with IC50 measurements from two orthogonal assay technologies, and further analysis of the Hill slopes and comparison of the ratio of IC50 values at 10 times the enzyme concentration were used to identify artifact compounds. Several series of compounds were rejected as they had both high slopes and poor ratios. A small number of compounds representing the different leading series were assessed using isothermal titration calorimetry, and the X-ray crystal structure of the complex with PFKFB3 was solved. The orthogonal assay technology and isothermal calorimetry were demonstrated to be unreliable in identifying false-positive compounds in this case. Presented here is the discovery of the dihydropyrrolopyrimidinone series of compounds as active and novel inhibitors of PFKFB3, shown by X-ray crystallography to bind to the adenosine triphosphate site. The crystal structures of this series also reveal it is possible to flip the binding mode of the compounds, and the alternative orientation can be driven by a sigma-hole interaction between an aromatic chlorine atom and a backbone carbonyl oxygen. These novel inhibitors will enable studies to explore the role of PFKFB3 in driving the glycolytic phenotype of tumors.
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Thomas A, Chambault M, Dreyfuss L, Gilbert C, Hegyi A, Henneberg S, Knippertz A, Kostyra E, Kremer S, Silva A, Schlich P. Measuring temporal liking simultaneously to Temporal Dominance of Sensations in several intakes. An application to Gouda cheeses in 6 Europeans countries. Food Res Int 2017; 99:426-434. [DOI: 10.1016/j.foodres.2017.05.035] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 04/25/2017] [Accepted: 05/29/2017] [Indexed: 10/19/2022]
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Jafari P, Pantet O, Augsburger M, Thomas A, Raffoul W, Applegate L, Berger M. PT10.1: Adapting Burn Trace Element Repletion: A New Burn Wound Exudate Collection Method Confirms Important CU Losses. Clin Nutr 2017. [DOI: 10.1016/s0261-5614(17)30665-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Ashwini G, Ramesh N, Navya C, Joy J, Thomas A, Jyoti S. Mental health status of workers in selected tea estates, Tamil Nadu, India. INTERNATIONAL JOURNAL OF OCCUPATIONAL SAFETY AND HEALTH 2017. [DOI: 10.3126/ijosh.v5i2.13035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Introduction: The prevalence of mental illnesses among industrial workers ranged between 14% - 51%, which is more than that of the general population. Individual’s psychosocial functioning has an impact on the work efficiency and hence the current study was undertaken to screen workers in tea plantations.Objective: To document the prevalence of probable mental illness and its associated factors among workers in selected tea estates in South India.Methodology: A cross sectional study was done in two tea estates in Tamil Nadu from March to May 2012. The General Health Questionnaire (GHQ) 28 was used to screen for mental health status. Socio-demographic details, work profile and associated risk factors were also documented.Results: Among the 400 subjects interviewed, 75.5% were females. The mean age was 43.21 (±7.47) years and the mean work experience was 21.38 (±9.31) years. In this study 12.8% subjects screened positive for probable mental illness and 1%, 1%, 0.2% and 1.5% screened positive for the domains of somatic symptoms, anxiety/insomnia, social dysfunction and severe depression respectively. Workers who screened positive for probable mental illness had availed significantly greater duration of leave in the previous year. There was no significant association of mental illness with age, gender, marital status, substance abuse, designation, co-morbidity and stressful life events.Conclusion: The prevalence of probable mental illness was similar to other occupational settings. Management of the associated risk factors may improve one’s work efficiency and productivity.
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Storelli F, Matthey A, Lenglet S, Thomas A, Daali Y, Desmeules J. Impact of Functional Allelic Variations on Drug-Drug Interactions Involving CYP2D6. Clin Ther 2017. [DOI: 10.1016/j.clinthera.2017.05.217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Mehra M, Kambili C, Potluri R, Rhines A, Singh V, Thomas A. Modeling the impact of bedaquiline treatment strategies on the multidrug-resistant tuberculosis burden in India. Int J Tuberc Lung Dis 2017; 21:902-909. [DOI: 10.5588/ijtld.16.0717] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Thomas A, Antony J, Haven-Tang C, Francis M, Fisher R. Implementing Lean Six Sigma into curriculum design and delivery – a case study in higher education. INTERNATIONAL JOURNAL OF PRODUCTIVITY AND PERFORMANCE MANAGEMENT 2017. [DOI: 10.1108/ijppm-08-2016-0176] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Purpose
The purpose of this paper is to propose the development and adoption of a Lean Six Sigma Framework (LSSF) that attempts to create a more balanced and integrated approach between Lean and Six Sigma and one that is capable of achieving improved efficacy of curriculum and programme development in a higher education environment. The implementation of the LSSF is new to the higher education sector.
Design/methodology/approach
Using the standard DMAIC cycle as the key driver in the implementation process, most in-depth Lean Six Sigma (LSS) case studies have focussed on manufacturing and engineering-based problems and solutions. This case study offers a detailed analysis of the design and implementation of an integrated LSSF within higher education and focusses primarily on the curriculum design and delivery of a new undergraduate engineering programme in a subject university. As such, this offers a unique perspective of LSS implementation in Higher Education Institutions (HEIs) which drives systems improvements in to the heart of the teaching and learning process.
Findings
The design, development and subsequent application of the LSSF enabled the curriculum development team to comprehensively apply LSS in to a subject institution. The Shainin Key Variables Search Technique (KVST) more specifically enabled the team to prioritise the key variables by way of order of importance and, this allowed the team to apply the most appropriate tools and techniques at the key points within the LSSF in order to obtain maximum performance.
Research limitations/implications
Whilst this work provides key information on how LSS initiatives are implemented across different institution types, the work has only focussed at a very small sample of HEIs and the case study only being applied to one institution. The work will need to be extended much more widely to incorporate a larger set of HEIs (both research and teaching focussed) in order to provide a more complete map of LSS development in HEIs.
Practical implications
The aim of the paper is to provide LSS project leaders in HEIs with a coherent and balanced LSSF in an attempt to assist them in implementing comprehensive LSS programmes thus maximising the improvements in efficiency and operational performance of departments within HEIs.
Originality/value
This paper is the first of its kind to study the application of Shainin’s KVST in the implementation of LSS programmes in HEIs. The key features highlighted in this work raise important issues regarding the need and importance of developing a balanced LSSF for HEI project implementation.
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Kashevarov VL, Ott P, Prakhov S, Adlarson P, Afzal F, Ahmed Z, Akondi CS, Annand JRM, Arends HJ, Beck R, Braghieri A, Briscoe WJ, Cividini F, Codling R, Collicott C, Costanza S, Denig A, Downie EJ, Dieterle M, Ferretti Bondy MI, Fil'kov LV, Fix A, Gardner S, Garni S, Glazier DI, Glowa D, Gradl W, Gurevich G, Hamilton DJ, Hornidge D, Howdle D, Huber GM, Käser A, Kay S, Keshelashvili I, Kondratiev R, Korolija M, Krusche B, Linturi J, Lisin V, Livingston K, MacGregor IJD, MacRae R, Mancell J, Manley DM, Martel PP, McGeorge JC, McNicol E, Middleton DG, Miskimen R, Mornacchi E, Mullen C, Mushkarenkov A, Neiser A, Oberle M, Ostrick M, Otte PB, Oussena B, Paudyal D, Pedroni P, Polyanski VV, Rajabi A, Reicherz G, Robinson J, Rosner G, Rostomyan T, Sarty A, Schott DM, Schumann S, Sfienti C, Sokhoyan V, Spieker K, Steffen O, Strandberg B, Strakovsky II, Strub T, Supek I, Taragin MF, Thiel A, Thiel M, Tiator L, Thomas A, Unverzagt M, Wagner S, Watts DP, Werthmüller D, Wettig J, Witthauer L, Wolfes M, Workman RL, Zana L. Study of η and η' Photoproduction at MAMI. PHYSICAL REVIEW LETTERS 2017; 118:212001. [PMID: 28598665 DOI: 10.1103/physrevlett.118.212001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Indexed: 06/07/2023]
Abstract
The reactions γp→ηp and γp→η^{'}p are measured from their thresholds up to the center-of-mass energy W=1.96 GeV with the tagged-photon facilities at the Mainz Microtron, MAMI. Differential cross sections are obtained with unprecedented statistical accuracy, providing fine energy binning and full production-angle coverage. A strong cusp is observed in the total cross section for η photoproduction at the energies in the vicinity of the η^{'} threshold, W=1896 MeV (E_{γ}=1447 MeV). Within the framework of a revised ηMAID isobar model, the cusp, in connection with a steep rise of the η^{'} total cross section from its threshold, can only be explained by a strong coupling of the poorly known N(1895)1/2^{-} state to both ηp and η^{'}p. Including the new high-accuracy results in the ηMAID fit to available η and η^{'} photoproduction data allows the determination of the N(1895)1/2^{-} properties.
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Khair K, Ranta S, Thomas A, Lindvall K. The impact of clinical practice on the outcome of central venous access devices in children with haemophilia. Haemophilia 2017; 23:e276-e281. [DOI: 10.1111/hae.13241] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/10/2017] [Indexed: 11/28/2022]
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Thomas A, Vigersky R, Shin J, Mc Mahon C, Shin B, Siegmund T, Kolassa R. Umfassende Bewertung der glykämischen Kontrolle mit einer zusammengesetzten Metrik: Das erweiterte GLUKOSE-PENTAGON-MODELL (eGPM). DIABETOL STOFFWECHS 2017. [DOI: 10.1055/s-0037-1601769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Thomas A, Kolassa R, Vigersky R, Shin J, Jiang B, Mc Mahon C, Siegmund T. Die „Hypo-Trias“: Ein neues Modell für die umfassende Beurteilung der Hypoglykämie, angewendet auf Daten der Aspire-Studie. DIABETOL STOFFWECHS 2017. [DOI: 10.1055/s-0037-1601766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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248
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Bakai T, Atcha-Oubou T, d’Almeida S, Ekouevi D, Tchadjobo T, Kusiaku K, Seck I, Thomas A, Goilibe K, Essébio D, Kassankogno Y, Khanafer N, Voirin N. Mise en place d’un réseau sentinelles national de surveillance du paludisme au Togo. Rev Epidemiol Sante Publique 2017. [DOI: 10.1016/j.respe.2017.03.094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Skinner M, Lim M, Tarrega A, Ford R, Linforth R, Thomas A, Hort J. Investigating the oronasal contributions to metallic perception. Int J Food Sci Technol 2017. [DOI: 10.1111/ijfs.13417] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Moulin S, Thomas A, Morand J, Arnaud C, Godin-Ribuot D, Belaidi-Corsat E. Major role of HIF-1 in endoplasmic reticulum stress and calcium alterations, leading to increased susceptibility to myocardial ischemiareperfusion, induced by chronic intermittent hypoxia. ARCHIVES OF CARDIOVASCULAR DISEASES SUPPLEMENTS 2017. [DOI: 10.1016/s1878-6480(17)30456-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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