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Devos S, Bonnet F, Hessamfar M, Neau D, Vareil MO, Leleux O, Cazanave C, Rouanes N, Duffau P, Lazaro E, Dabis F, Wittkop L, Barger D, Blanco P, Bouchet S, Breilh D, Desjardin S, Gaborieau V, Gimbert A, Lacaze-Buzy L, Lacoste D, Lafon ME, Lawson-Ayayi S, Le Marec F, Le Moal G, Malvy D, Marchand L, Mercié P, Pellegrin I, Perrier A, Petrov-Sanchez V, Bernard N, Bronnimann D, Chaussade H, Dondia D, Faure I, Morlat P, Mériglier E, Paccalin F, Riebero E, Rivoisy C, Vandenhende MA, Barthod L, Dauchy FA, Desclaux A, Ducours M, Dutronc H, Duvignaud A, Leitao J, Lescure M, Nguyen D, Pistone T, Puges M, Wirth G, Courtault C, Camou F, Greib C, Pellegrin JL, Rivière E, Viallard JF, Imbert Y, Thierry-Mieg M, Rispal P, Caubet O, Ferrand H, Tchamgoué S, Farbos S, Wille H, Andre K, Caunegre L, Gerard Y, Osorio-Perez F, Chossat I, Iles G, Labasse-Depis M, Lacassin F, Barret A, Castan B, Koffi J, Saunier A, Zabbe JB, Dumondin G, Beraud G, Catroux M, Garcia M, Giraud V, Martellosio JP, Roblot F, Pasdeloup T, Riché A, Grosset M, Males S, Ngo Bell C, Carpentier C, Tumiotto C, Miremeont-Salamé G, Arma D, Arnou G, Blaizeau MJ, Camps P, Decoin M, Delveaux S, Diarra F, Gabrea L, Lai WH, Lenaud E, Plainchamps D, Pougetoux A, Uwamaliya B, Zara K, Conte V, Gapillout M. Tobacco, alcohol, cannabis, and illicit drug use and their association with CD4/CD8 cell count ratio in people with controlled HIV: a cross-sectional study (ANRS CO3 AQUIVIH-NA-QuAliV). BMC Infect Dis 2023; 23:16. [PMID: 36624391 PMCID: PMC9830769 DOI: 10.1186/s12879-022-07963-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 12/21/2022] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND To evaluate drug use (alcohol, tobacco, cannabis and other drugs) and its association with mean CD4/CD8 T cell count ratio, a marker of chronic inflammation, in virally suppressed people living with HIV-1 (PLWH) in Nouvelle Aquitaine, France. METHODS A multi-centric, cross-sectional analysis was conducted in 2018-19 in the QuAliV study-ANRS CO3 AQUIVIH-NA cohort. Tobacco, alcohol, cannabis, and other drug use (poppers, cocaine, amphetamines, synthetic cathinones, GHB/GBL) were self-reported. CD4 and CD8 T cell counts and viral load measures, ± 2 years of self-report, and other characteristics were abstracted from medical records. Univariable and multivariable linear regression models, adjusted for age, sex, HIV risk group, time since HIV diagnosis, and other drug use were fit for each drug and most recent CD4/CD8 ratio. RESULTS 660 PLWH, aged 54.7 ± 11.2, were included. 47.7% [315/660] had a CD4/CD8 ratio of < 1. Their mean CD4/CD8 ratio was 1.1 ± 0.6. 35% smoked; ~ 40% were considered to be hazardous drinkers or have alcohol use disorder; 19.9% used cannabis and 11.9% other drugs. Chemsex-associated drug users' CD4/CD8 ratio was on average 0.226 (95% confidence interval [95% CI] - 0.383, - 0.070) lower than that of non-users in univariable analysis (p = 0.005) and 0.165 lower [95% CI - 0.343, 0.012] in multivariable analysis (p = 0.068). CONCLUSIONS Mean differences in CD4/CD8 ratio were not significantly different in tobacco, alcohol and cannabis users compared to non-users. However, Chemsex-associated drug users may represent a population at risk of chronic inflammation, the specific determinants of which merit further investigation. TRIAL REGISTRATION NUMBER NCT03296202.
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Affiliation(s)
- Sophie Devos
- grid.7429.80000000121866389Univ. Bordeaux, INSERM, BPH, U1219, 146, rue Léo Saignat-CS61292, 33076 Bordeaux Cedex, France ,grid.42399.350000 0004 0593 7118CHU de Bordeaux, COREVIH Nouvelle Aquitaine, INSERM, U1219, 1 Rue Jean Burguet, 33000 Bordeaux, France
| | - Fabrice Bonnet
- grid.7429.80000000121866389Univ. Bordeaux, INSERM, BPH, U1219, 146, rue Léo Saignat-CS61292, 33076 Bordeaux Cedex, France ,grid.42399.350000 0004 0593 7118CHU de Bordeaux, Service de Médecine Interne et Maladies Infectieuses, INSERM, U1219, 1 Rue Jean Burguet, 33000 Bordeaux, France ,grid.7429.80000000121866389Univ. Bordeaux, INSERM, Institut Bergonié, BPH, U1219, CIC-P 1401, 146, rue Léo Saignat-CS61292, 33076 Bordeaux Cedex, France
| | - Mojgan Hessamfar
- grid.7429.80000000121866389Univ. Bordeaux, INSERM, BPH, U1219, 146, rue Léo Saignat-CS61292, 33076 Bordeaux Cedex, France ,grid.42399.350000 0004 0593 7118CHU de Bordeaux, COREVIH Nouvelle Aquitaine, INSERM, U1219, 1 Rue Jean Burguet, 33000 Bordeaux, France ,grid.42399.350000 0004 0593 7118CHU de Bordeaux, Service de Médecine Interne et Maladies Infectieuses, INSERM, U1219, 1 Rue Jean Burguet, 33000 Bordeaux, France
| | - Didier Neau
- grid.42399.350000 0004 0593 7118CHU de Bordeaux, Service des Maladies Infectieuses et Tropicales, INSERM, U1219, Pl. Amélie Raba Léon, U121933000 Bordeaux, France
| | - Marc-Olivier Vareil
- grid.418076.c0000 0001 0226 3611Centre Hospitalier de la Côte Basque, Service de Maladies Infectieuses, 13 Avenue de l’interne Jacques Loëb, BP 8, 64109 Bayonne Cedex, France
| | - Olivier Leleux
- grid.7429.80000000121866389Univ. Bordeaux, INSERM, Institut Bergonié, BPH, U1219, CIC-P 1401, 146, rue Léo Saignat-CS61292, 33076 Bordeaux Cedex, France
| | - Charles Cazanave
- grid.42399.350000 0004 0593 7118CHU de Bordeaux, Service des Maladies Infectieuses et Tropicales, INSERM, U1219, Pl. Amélie Raba Léon, U121933000 Bordeaux, France
| | - Nicolas Rouanes
- Centre Hospitalier de Périgueux, Service de Médecine Polyvalente, 80 Av. Georges Pompidou, 22400 Périgueux, France
| | - Pierre Duffau
- grid.42399.350000 0004 0593 7118CHU de Bordeaux, Service de Médecine Interne et Maladies Infectieuses, INSERM, U1219, 1 Rue Jean Burguet, 33000 Bordeaux, France ,grid.4444.00000 0001 2112 9282Univ. Bordeaux, Department of Immunology, CNRS, ImmunoConcEpT, UMR 5164, 33000 Bordeaux, France
| | - Estibaliz Lazaro
- grid.42399.350000 0004 0593 7118CHU de Bordeaux, Service de Médecine Interne, 1 Avenue de Magellan, 33600 Pessac, France
| | - François Dabis
- grid.7429.80000000121866389Univ. Bordeaux, INSERM, BPH, U1219, 146, rue Léo Saignat-CS61292, 33076 Bordeaux Cedex, France ,grid.42399.350000 0004 0593 7118CHU de Bordeaux, COREVIH Nouvelle Aquitaine, INSERM, U1219, 1 Rue Jean Burguet, 33000 Bordeaux, France
| | - Linda Wittkop
- grid.7429.80000000121866389Univ. Bordeaux, INSERM, BPH, U1219, 146, rue Léo Saignat-CS61292, 33076 Bordeaux Cedex, France ,grid.7429.80000000121866389Univ. Bordeaux, INSERM, Institut Bergonié, BPH, U1219, CIC-P 1401, 146, rue Léo Saignat-CS61292, 33076 Bordeaux Cedex, France ,Univ. Bordeaux, INSERM, INRIA, BPH, U1219, 146, rue Léo Saignat-CS61292, 33076 Bordeaux Cedex, France ,grid.508062.90000 0004 8511 8605CHU de Bordeaux, Service d’information médicale, INSERM, U1219, 146, rue Léo Saignat-CS61292, 33076 Bordeaux Cedex, France
| | - Diana Barger
- grid.7429.80000000121866389Univ. Bordeaux, INSERM, BPH, U1219, 146, rue Léo Saignat-CS61292, 33076 Bordeaux Cedex, France
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Blanc P, Bonnet F, Leleux O, Perrier A, Bessede E, Pereyre S, Cazanave C, Neau D, Vareil MO, Lazaro E, Duffau P, Saunier A, André K, Wittkop L, Vandenhende MA, Blanco P, Bonnet F, Bouchet S, Breilh D, Cazanave C, Desjardin S, Gaborieau V, Gimbert A, Hessamfar M, Lacaze-Buzy L, Lacoste D, Lafon ME, Lawson-Ayayi S, Lazaro E, Leleux O, Le Marec F, Le Moal G, Malvy D, Marchand L, Mercié P, Neau D, Pellegrin I, Perrier A, Petrov-Sanchez V, Vareil MO, Wittkop L, Bernard N, Bonnet F, Bronnimann D, Chaussade H, Dondia D, Duffau P, Faure I, Hessamfar M, Mercié P, Morlat P, Mériglier E, Paccalin F, Riebero E, Rivoisy C, Vandenhende MA, Barthod L, Cazanave C, Dauchy FA, Desclaux A, Ducours M, Dutronc H, Duvignaud A, Leitao J, Lescure M, Neau D, Nguyen D, Malvy D, Pistone T, Puges M, Wirth G, Courtault C, Camou F, Greib C, Lazaro E, Pellegrin JL, Rivière E, Viallard JF, Imbert Y, Thierry-Mieg M, Rispal P, Caubet O, Ferrand H, Tchamgoué S, Farbos S, Vareil MO, Wille H, Andre K, Caunegre L, Gerard Y, Osorio-Perez F, Chossat I, Iles G, Gerard Y, Labasse-Depis M, Lacassin F, Barret A, Courtault C, Castan B, Koffi J, Rouanes N, Saunier A, Zabbe JB, Dumondin G, Gaborieau V, Gerard Y, Beraud G, Le Moal G, Catroux M, Garcia M, Giraud V, Martellosio JP, Roblot F, Pasdeloup T, Riché A, Grosset M, Males S, Bell CN, Pasdeloup T, Pasdeloup T, Blanco P, Pellegrin I, Carpentier C, Pellegrin I, Bellecave P, Lafon ME, Tumiotto C, Bouchet S, Breilh D, Miremeont-Salamé G, Arma D, Arnou G, Blaizeau MJ, Camps P, Decoin M, Delveaux S, Diarra F, Gabrea L, Lawson-Ayayi S, Lenaud E, Plainchamps D, Pougetoux A, Uwamaliya B, Zara K, Conte V, Gapillout M, Leleux O, Perrier A, Peyrouny-Mazeau A. Severe bacterial non-AIDS infections in persons with HIV: the epidemiology and evolution of antibiotic resistance over an 18-year period (2000-2017) in the ANRS CO3 AquiVih-Nouvelle-Aquitaine cohort. Clin Infect Dis 2023; 76:1814-1821. [PMID: 36610063 DOI: 10.1093/cid/ciac978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 12/19/2022] [Accepted: 12/27/2022] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Severe non-AIDS bacterial infections (SBIs) are one of the leading causes of hospital admissions among persons with HIV (PWH) in regions with high ART coverage. METHODS This large prospective cohort study of PWH examined the types of infections, bacterial documentation, and evolution of antibiotic resistance among PWH hospitalized with SBIs over an 18-year period. RESULTS Between 2000 and 2017, 459 PWH had at least one SBI with bacterial documentation. Among the 847 SBIs, there were 280 cases of bacteremia, 269 cases of pneumonia, and 240 urinary tract infections. The 1025 isolated bacteria included Enterobacteriaceae (n = 394; mainly Escherichia coli), Staphylococcus aureus (n = 153) and Streptococcus pneumoniae (n = 82). The proportion of S. pneumoniae as the causative agent in pneumonia and bacteremia decreased sharply over time, from 34% to 8% and from 21 to 3%, respectively.The overall antibiotic resistance of S. aureus and S. pneumoniae decreased progressively but it increased for Enterobacteriaceae (from 24% to 48% for amoxicillin-clavulanate, from 4 to 18% for cefotaxime, and from 5% to 27% for ciprofloxacin). Cotrimoxazole prophylaxis was associated with higher nonsusceptibility of S. pneumoniae to amoxicillin and erythromycin, higher nonsusceptibility of Enterobacteriaceae to beta-lactams and fluoroquinolones, and a higher risk of extended-spectrum β-lactamase producing Enterobacteriaceae. CONCLUSIONS The bacterial resistance pattern among PWH between 2014 and 2017 was broadly similar to that in the general population, with the exception of a higher resistance profile of Enterobacteriaceae to fluoroquinolones. The use of cotrimoxazole as prophylaxis was associated with an increased risk of antibiotic resistance.
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Affiliation(s)
- Peggy Blanc
- Centre Hospitalier Universitaire de Bordeaux, Service de Médecine Interne et Maladies Infectieuses, Hôpital Saint-André, F-33000 Bordeaux, France
| | - Fabrice Bonnet
- Centre Hospitalier Universitaire de Bordeaux, Service de Médecine Interne et Maladies Infectieuses, Hôpital Saint-André, F-33000 Bordeaux, France.,Université de Bordeaux, INSERM, BPH, U1219, F-33000 Bordeaux, France
| | - Olivier Leleux
- Université de Bordeaux, INSERM, BPH, U1219, F-33000 Bordeaux, France
| | - Adélaïde Perrier
- Université de Bordeaux, INSERM, BPH, U1219, F-33000 Bordeaux, France
| | - Emilie Bessede
- Centre Hospitalier Universitaire de Bordeaux, Laboratoire de Bactériologie, Hôpital Pellegrin, F-33000 Bordeaux, France
| | - Sabine Pereyre
- Centre Hospitalier Universitaire de Bordeaux, Laboratoire de Bactériologie, Hôpital Pellegrin, F-33000 Bordeaux, France.,Université de Bordeaux, CNRS, UMR 5234 Fundamental Microbiology and Pathogenicity, F-33000 Bordeaux, France
| | - Charles Cazanave
- Centre Hospitalier Universitaire de Bordeaux, Service des maladies Infectieuses et Tropicales, Hôpital Pellegrin, F-33000 Bordeaux, France
| | - Didier Neau
- Centre Hospitalier Universitaire de Bordeaux, Service des maladies Infectieuses et Tropicales, Hôpital Pellegrin, F-33000 Bordeaux, France
| | - Marc-Olivier Vareil
- Centre Hospitalier de la Côte Basque, Service de Maladies Infectieuses, F-64109 Bayonne, France
| | - Estibaliz Lazaro
- Centre Hospitalier Universitaire de Bordeaux, Service de Médecine Interne, Hôpital du Haut-Lévêque, F-33600 Pessac, France
| | - Pierre Duffau
- Centre Hospitalier Universitaire de Bordeaux, Service de Médecine Interne et Immunologie Clinique, Hôpital Saint-André, UMR 5164, F-33000 Bordeaux, France.,Université de Bordeaux, CNRS, Immuno ConcEpT, UMR 5164, F-33000 Bordeaux, France
| | - Aurélie Saunier
- Centre Hospitalier de Périgueux, Service de Médecine Interne, F-24000 Périgueux, France
| | - Katell André
- Centre Hospitalier de Dax, Service de Maladies Infectieuses, F-40100 Dax, France
| | - Linda Wittkop
- Université de Bordeaux, INSERM, Institut Bergonié, BPH, U1219, CIC-EC 1401, F-33000, Bordeaux, France.,INRIA SISTM Team, F-33405, Talence, France.,Centre Hospitalier Universitaire de Bordeaux, Service d'information médicale, INSERM, Institut Bergonié, CIC-EC 1401, F-33000 Bordeaux, France
| | - Marie-Anne Vandenhende
- Centre Hospitalier Universitaire de Bordeaux, Service de Médecine Interne, Hôpital Pellegrin, INSERM, Institut Bergonié, CIC-EC 1401, F-33000 Bordeaux, France.,Université de Bordeaux, INSERM, Institut Bergonié, CIC-EC 1401, F-33000 Bordeaux, France
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Marcellin F, Brégigeon-Ronot S, Ramier C, Protopopescu C, Gilbert C, Di Beo V, Duvivier C, Bureau-Stoltmann M, Rosenthal E, Wittkop L, Salmon-Céron D, Carrieri P, Sogni P, Barré T, Salmon D, Wittkop L, Sogni P, Esterle L, Trimoulet P, Izopet J, Serfaty L, Paradis V, Spire B, Carrieri P, Valantin M, Pialoux G, Chas J, Zaegel-Faucher O, Barange K, Naqvi A, Rosenthal E, Bicart-See A, Bouchaud O, Gervais A, Lascoux-Combe C, Goujard C, Lacombe K, Duvivier C, Neau D, Morlat P, Bani-Sadr F, Meyer L, Boufassa F, Autran B, Roque A, Solas C, Fontaine H, Costagliola D, Piroth L, Simon A, Zucman D, Boué F, Miailhes P, Billaud E, Aumaître H, Rey D, Peytavin G, Petrov-Sanchez V, Levier A, Salmon D, Usubillaga R, Sogni P, Terris B, Tremeaux P, Katlama C, Valantin M, Stitou H, Simon A, Cacoub P, Nafissa S, Benhamou Y, Charlotte F, Fourati S, Poizot-Martin I, Zaegel O, Laroche H, Tamalet C, Pialoux G, Chas J, Callard P, Bendjaballah F, Amiel C, Le Pendeven C, Marchou B, Alric L, Barange K, Metivier S, Selves J, Larroquette F, Rosenthal E, Naqvi A, Rio V, Haudebourg J, Saint-Paul M, De Monte A, Giordanengo V, Partouche C, Bouchaud O, Martin A, Ziol M, Baazia Y, Iwaka-Bande V, Gerber A, Uzan M, Bicart-See A, Garipuy D, Ferro-Collados M, Selves J, Nicot F, Gervais A, Yazdanpanah Y, Adle-Biassette H, Alexandre G, Peytavin G, Lascoux-Combe C, Molina J, Bertheau P, Chaix M, Delaugerre C, Maylin S, Lacombe K, Bottero J, Krause J, Girard P, Wendum D, Cervera P, Adam J, Viala C, Vittecocq D, Goujard C, Quertainmont Y, Teicher E, Pallier C, Lortholary O, Duvivier C, Rouzaud C, Lourenco J, Touam F, Louisin C, Avettand-Fenoel V, Gardiennet E, Mélard A, Neau D, Ochoa A, Blanchard E, Castet-Lafarie S, Cazanave C, Malvy D, Dupon M, Dutronc H, Dauchy F, Lacaze-Buzy L, Desclaux A, Bioulac-Sage P, Trimoulet P, Reigadas S, Morlat P, Lacoste D, Bonnet F, Bernard N, Hessamfar M, Paccalin J, Martell C, Pertusa M, Vandenhende M, Mercié P, Malvy D, Pistone T, Receveur M, Méchain M, Duffau P, Rivoisy C, Faure I, Caldato S, Bioulac-Sage P, Trimoulet P, Reigadas S, Bellecave P, Tumiotto C, Pellegrin J, Viallard J, Lazzaro E, Greib C, Bioulac-Sage P, Trimoulet P, Reigadas S, Zucman D, Majerholc C, Brollo M, Farfour E, Boué F, Polo Devoto J, Kansau I, Chambrin V, Pignon C, Berroukeche L, Fior R, Martinez V, Abgrall S, Favier M, Deback C, Lévy Y, Dominguez S, Lelièvre J, Lascaux A, Melica G, Billaud E, Raffi F, Allavena C, Reliquet V, Boutoille D, Biron C, Lefebvre M, Hall N, Bouchez S, Rodallec A, Le Guen L, Hemon C, Miailhes P, Peyramond D, Chidiac C, Ader F, Biron F, Boibieux A, Cotte L, Ferry T, Perpoint T, Koffi J, Zoulim F, Bailly F, Lack P, Maynard M, Radenne S, Amiri M, Valour F, Koffi J, Zoulim F, Bailly F, Lack P, Maynard M, Radenne S, Augustin-Normand C, Scholtes C, Le-Thi T, Piroth L, Chavanet P, Duong Van Huyen M, Buisson M, Waldner-Combernoux A, Mahy S, Salmon Rousseau A, Martins C, Aumaître H, Galim S, Bani-Sadr F, Lambert D, Nguyen Y, Berger J, Hentzien M, Brodard V, Rey D, Partisani M, Batard M, Cheneau C, Priester M, Bernard-Henry C, de Mautort E, Fischer P, Gantner et S Fafi-Kremer P, Roustant F, Platterier P, Kmiec I, Traore L, Lepuil S, Parlier S, Sicart-Payssan V, Bedel E, Anriamiandrisoa S, Pomes C, Touam F, Louisin C, Mole M, Bolliot C, Catalan P, Mebarki M, Adda-Lievin A, Thilbaut P, Ousidhoum Y, Makhoukhi F, Braik O, Bayoud R, Gatey C, Pietri M, Le Baut V, Ben Rayana R, Bornarel D, Chesnel C, Beniken D, Pauchard M, Akel S, Caldato S, Lions C, Ivanova A, Ritleg AS, Debreux C, Chalal L, J.Zelie, Hue H, Soria A, Cavellec M, Breau S, Joulie A, Fisher P, Gohier S, Croisier-Bertin D, Ogoudjobi S, Brochier C, Thoirain-Galvan V, Le Cam M, Carrieri P, Chalouni M, Conte V, Dequae-Merchadou L, Desvallées M, Esterle L, Gilbert C, Gillet S, Guillochon Q, Khan C, Knight R, Marcellin F, Michel L, Mora M, Protopopescu C, Roux P, Spire B, Barré T, Ramier C, Sow A, Lions C, Di Beo V, Bureau M, Wittkop L. Depressive symptoms after hepatitis C cure and socio-behavioral correlates in aging people living with HIV (ANRS CO13 HEPAVIH). JHEP Rep 2022; 5:100614. [DOI: 10.1016/j.jhepr.2022.100614] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 10/06/2022] [Accepted: 10/07/2022] [Indexed: 11/06/2022] Open
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Barré T, Mercié P, Lions C, Miailhes P, Zucman D, Aumaître H, Esterle L, Sogni P, Carrieri P, Salmon-Céron D, Marcellin F, Salmon D, Wittkop L, Sogni P, Esterle L, Trimoulet P, Izopet J, Serfaty L, Paradis V, Spire B, Carrieri P, Valantin MA, Pialoux G, Chas J, Poizot-Martin I, Barange K, Naqvi A, Rosenthal E, Bicart-See A, Bouchaud O, Gervais A, Lascoux-Combe C, Goujard C, Lacombe K, Duvivier C, Neau D, Morlat P, Bani-Sadr F, Meyer L, Boufassa F, Autran B, Roque AM, Solas C, Fontaine H, Costagliola D, Piroth L, Simon A, Zucman D, Boué F, Miailhes P, Billaud E, Aumaître H, Rey D, Peytavin G, Petrov-Sanchez V, Levier A, Usubillaga R, Terris B, Tremeaux P, Katlama C, Valantin MA, Stitou H, Cacoub P, Nafissa S, Benhamou Y, Charlotte F, Fourati S, Zaegel O, Laroche H, Tamalet C, Callard P, Bendjaballah F, Le Pendeven C, Marchou B, Alric L, Metivier S, Selves J, Larroquette F, Rio V, Haudebourg J, Saint-Paul MC, De Monte A, Giordanengo V, Partouche C, Martin A, Ziol M, Baazia Y, Iwaka-Bande V, Gerber A, Uzan M, Garipuy D, Ferro-Collados MJ, Nicot F, Yazdanpanah Y, Adle-Biassette H, Alexandre G, Molina JM, Bertheau P, Chaix ML, Delaugerre C, Maylin S, Bottero J, Krause J, Girard PM, Wendum D, Cervera P, Adam J, Viala C, Vittecocq D, Quertainmont Y, Teicher E, Pallier C, Lortholary O, Rouzaud C, Lourenco J, Touam F, Louisin C, Avettand-Fenoel V, Gardiennet E, Mélard A, Ochoa A, Blanchard E, Castet-Lafarie S, Cazanave C, Malvy D, Dupon M, Dutronc H, Dauchy F, Lacaze-Buzy L, Desclaux A, Bioulac-Sage P, Reigadas S, Lacoste D, Bonnet F, Bernard N, Hessamfar M, J, Paccalin F, Martell C, Pertusa MC, Vandenhende M, Mercié P, Pistone T, Receveur MC, Méchain M, Duffau P, Rivoisy C, Faure I, Caldato S, Bellecave P, Tumiotto C, Pellegrin JL, Viallard JF, Lazzaro E, Greib C, Majerholc C, Brollo M, Farfour E, Devoto JP, Kansau I, Chambrin V, Pignon C, Berroukeche L, Fior R, Martinez V, Abgrall S, Favier M, Deback C, Lévy Y, Dominguez S, Lelièvre JD, Lascaux AS, Melica G, Raffi F, Allavena C, Reliquet V, Boutoille D, Biron C, Lefebvre M, Hall N, Bouchez S, Rodallec A, Le Guen L, Hemon C, Peyramond D, Chidiac C, Ader F, Biron F, Boibieux A, Cotte L, Ferry T, Perpoint T, Koffi J, Zoulim F, Bailly F, Lack P, Maynard M, Radenne S, Amiri M, Valour F, Augustin-Normand C, Scholtes C, Le-Thi TT, Van Huyen PCMD, Buisson M, Waldner-Combernoux A, Mahy S, Rousseau AS, Martins C, Galim S, Lambert D, Nguyen Y, Berger JL, Hentzien M, Brodard V, Partisani M, Batard ML, Cheneau C, Priester M, Bernard-Henry C, de Mautort E, Fischer P, Gantner P, Fafi-Kremer S, Roustant F, Platterier P, Kmiec I, Traore L, Lepuil S, Parlier S, Sicart-Payssan V, Bedel E, Anriamiandrisoa S, Pomes C, Mole M, Bolliot C, Catalan P, Mebarki M, Adda-Lievin A, Thilbaut P, Ousidhoum Y, Makhoukhi FZ, Braik O, Bayoud R, Gatey C, Pietri MP, Le Baut V, Rayana RB, Bornarel D, Chesnel C, Beniken D, Pauchard M, Akel S, Lions C, Ivanova A, Ritleg AS, Debreux C, Chalal L, Zelie J, Hue H, Soria A, Cavellec M, Breau S, Joulie A, Fisher P, Gohier S, Croisier-Bertin D, Ogoudjobi S, Brochier C, Thoirain-Galvan V, Le Cam M, Chalouni M, Conte V, Dequae-Merchadou L, Desvallees M, Gilbert C, Gillet S, Knight R, Lemboub T, Marcellin F, Michel L, Mora M, Protopopescu C, Roux P, Tezkratt S, Barré T, Rojas TR, Baudoin M, Di Beo MSV, Nishimwe M. HCV cure: an appropriate moment to reduce cannabis use in people living with HIV? (ANRS CO13 HEPAVIH data). AIDS Res Ther 2022; 19:15. [PMID: 35292069 PMCID: PMC8922772 DOI: 10.1186/s12981-022-00440-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 03/06/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Thanks to direct-acting antivirals, hepatitis C virus (HCV) infection can be cured, with similar rates in HCV-infected and HIV-HCV co-infected patients. HCV cure is likely to foster behavioral changes in psychoactive substance use, which is highly prevalent in people living with HIV (PLWH). Cannabis is one substance that is very commonly used by PLWH, sometimes for therapeutic purposes. We aimed to identify correlates of cannabis use reduction following HCV cure in HIV-HCV co-infected cannabis users and to characterize persons who reduced their use. METHODS We used data collected on HCV-cured cannabis users in a cross-sectional survey nested in the ANRS CO13 HEPAVIH cohort of HIV-HCV co-infected patients, to perform logistic regression, with post-HCV cure cannabis reduction as the outcome, and socio-behavioral characteristics as potential correlates. We also characterized the study sample by comparing post-cure substance use behaviors between those who reduced their cannabis use and those who did not. RESULTS Among 140 HIV-infected cannabis users, 50 and 5 had reduced and increased their use, respectively, while 85 had not changed their use since HCV cure. Cannabis use reduction was significantly associated with tobacco use reduction, a decrease in fatigue level, paying more attention to one's dietary habits since HCV cure, and pre-HCV cure alcohol abstinence (p = 0.063 for alcohol use reduction). CONCLUSIONS Among PLWH using cannabis, post-HCV cure cannabis reduction was associated with tobacco use reduction, improved well-being, and adoption of healthy behaviors. The management of addictive behaviors should therefore be encouraged during HCV treatment.
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Bunet R, Nayrac M, Ramani H, Sylla M, Durand M, Chartrand-Lefebvre C, Routy JP, Landay AL, Gauchat JF, Chomont N, Ancuta P, Kaufmann DE, Bernard N, Tremblay CL, El-Far M. Loss of CD96 Expression as a Marker of HIV-Specific CD8 + T-Cell Differentiation and Dysfunction. Front Immunol 2021; 12:673061. [PMID: 34122431 PMCID: PMC8190400 DOI: 10.3389/fimmu.2021.673061] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 05/11/2021] [Indexed: 01/01/2023] Open
Abstract
Persistent immune activation and inflammation in people living with HIV (PLWH) are associated with immunosenescence, premature aging and increased risk of non-AIDS comorbidities, with the underlying mechanisms not fully understood. In this study, we show that downregulation of the T-cell immunoglobulin receptor CD96 on CD8+ T cells from PLWH is associated with decreased expression of the co-stimulatory receptors CD27 and CD28, higher expression of the senescence marker CD57 and accumulation of a terminally differentiated T-cell memory phenotype. In addition, we show that CD96-low CD8+ T-cells display lower proliferative potential compared to their CD96-high counterparts and that loss of CD96 expression by HIV-specific CD8+ T-cells is associated with a suboptimal response to HIV antigens. In conclusion, our results suggest that CD96 marks CD8+ T-cells with competent responses to HIV and the loss of its expression might be used as a biomarker for CD8+ T-cell senescence and dysfunction in PLWH.
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Affiliation(s)
- Rémi Bunet
- CHUM-Research Centre, Montréal, Montréal, QC, Canada.,Département de Microbiologie, Infectiologie et Immunologie, Faculté de Médecine, Université de Montréal, Montréal, QC, Canada
| | - Manon Nayrac
- CHUM-Research Centre, Montréal, Montréal, QC, Canada
| | - Hardik Ramani
- CHUM-Research Centre, Montréal, Montréal, QC, Canada.,Département de Microbiologie, Infectiologie et Immunologie, Faculté de Médecine, Université de Montréal, Montréal, QC, Canada
| | - Mohamed Sylla
- CHUM-Research Centre, Montréal, Montréal, QC, Canada
| | - Madeleine Durand
- CHUM-Research Centre, Montréal, Montréal, QC, Canada.,Département de Médecine, Faculté de Médecine, Université de Montréal, Montréal, QC, Canada
| | | | - Jean-Pierre Routy
- Research Institute of McGill University Health Centre, Montréal, QC, Canada
| | - Alan L Landay
- Department of Internal Medicine, Rush University Medical Center, Chicago, IL, United States
| | - Jean-Francois Gauchat
- Faculté de Médecine, Département de Pharmacologie et Physiologie, Université de Montréal, Montréal, QC, Canada
| | - Nicolas Chomont
- CHUM-Research Centre, Montréal, Montréal, QC, Canada.,Département de Microbiologie, Infectiologie et Immunologie, Faculté de Médecine, Université de Montréal, Montréal, QC, Canada
| | - Petronela Ancuta
- CHUM-Research Centre, Montréal, Montréal, QC, Canada.,Département de Microbiologie, Infectiologie et Immunologie, Faculté de Médecine, Université de Montréal, Montréal, QC, Canada
| | - Daniel E Kaufmann
- CHUM-Research Centre, Montréal, Montréal, QC, Canada.,Département de Médecine, Faculté de Médecine, Université de Montréal, Montréal, QC, Canada
| | - Nicole Bernard
- Research Institute of McGill University Health Centre, Montréal, QC, Canada
| | - Cécile L Tremblay
- CHUM-Research Centre, Montréal, Montréal, QC, Canada.,Département de Microbiologie, Infectiologie et Immunologie, Faculté de Médecine, Université de Montréal, Montréal, QC, Canada
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6
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Marcellin F, Di Beo V, Aumaitre H, Mora M, Wittkop L, Duvivier C, Protopopescu C, Lacombe K, Esterle L, Berenger C, Gilbert C, Bouchaud O, Poizot-Martin I, Sogni P, Salmon-Ceron D, Carrieri P, Wittkop L, Sogni P, Esterle L, Trimoulet P, Izopet J, Serfaty L, Paradis V, Spire B, Carrieri P, Valantin M, Pialoux G, Chas J, Poizot-Martin I, Barange K, Naqvi A, Rosenthal E, Bicart-See A, Bouchaud O, Gervais A, Lascoux-Combe C, Goujard C, Lacombe K, Duvivier C, Neau D, Morlat P, Bani-Sadr F, Meyer L, Boufassa F, Autran B, Roque A, Solas C, Fontaine H, Costagliola D, Piroth L, Simon A, Zucman D, Boué F, Miailhes P, Billaud E, Aumaître H, Rey D, Peytavin G, Petrov-Sanchez V, Lebrasseur-Longuet D, Salmon D, Usubillaga R, Sogni P, Terris B, Tremeaux P, Katlama C, Valantin M, Stitou H, Simon A, Cacoub P, Nafissa S, Benhamou Y, Charlotte F, Fourati S, Poizot-Martin I, Zaegel O, Laroche H, Tamalet C, Pialoux G, Chas J, Callard P, Bendjaballah F, Amiel C, Le Pendeven C, Marchou B, Alric L, Barange K, Metivier S, Selves J, Larroquette F, Rosenthal E, Naqvi A, Rio V, Haudebourg J, Saint-Paul M, De Monte A, Giordanengo V, Partouche C, Bouchaud O, Martin A, Ziol M, Baazia Y, Iwaka-Bande V, Gerber A, Uzan M, Bicart-See A, Garipuy D, Ferro-Collados M, Selves J, Nicot F, Gervais A, Yazdanpanah Y, Adle-Biassette H, Alexandre G, Peytavin G, Lascoux-Combe C, Molina J, Bertheau P, Chaix M, Delaugerre C, Maylin S, Lacombe K, Bottero J, Krause J, Girard P, Wendum D, Cervera P, Adam J, Viala C, Vittecocq D, Goujard C, Quertainmont Y, Teicher E, Pallier C, Lortholary O, Duvivier C, Rouzaud C, Lourenco J, Touam F, Louisin C, Avettand-Fenoel V, Gardiennet E, Mélard A, Neau D, Ochoa A, Blanchard E, Castet-Lafarie S, Cazanave C, Malvy D, Dupon M, Dutronc H, Dauchy F, Lacaze-Buzy L, Desclaux A, Bioulac-Sage P, Trimoulet P, Reigadas S, Morlat P, Lacoste D, Bonnet F, Bernard N, Hessamfar, J M, Paccalin F, Martell C, Pertusa M, Vandenhende M, Mercié P, Malvy D, Pistone T, Receveur M, Méchain M, Duau P, Rivoisy C, Faure I, Caldato S, Bioulac-Sage P, Trimoulet P, Reigadas S, Bellecave P, Tumiotto C, Pellegrin J, Viallard J, Lazzaro E, Greib C, Bioulac-Sage P, Trimoulet P, Reigadas S, Zucman D, Majerholc C, Brollo M, Farfour E, Boué F, Polo Devoto J, Kansau I, Chambrin V, Pignon C, Berroukeche L, Fior R, Martinez V, Abgrall S, Favier M, Deback C, Lévy Y, Dominguez S, Lelièvre J, Lascaux A, Melica G, Billaud E, Raffi F, Allavena C, Reliquet V, Boutoille D, Biron C, Lefebvre M, Hall N, Bouchez S, Rodallec A, Le Guen L, Hemon C, Miailhes P, Peyramond D, Chidiac C, Ader F, Biron F, Boibieux A, Cotte L, Ferry T, Perpoint T, Koffi J, Zoulim F, Bailly F, Lack P, Maynard M, Radenne S, Amiri M, Valour F, Koffi J, Zoulim F, Bailly F, Lack P, Maynard M, Radenne S, Augustin-Normand C, Scholtes C, Le-Thi T, Piroth L, Chavanet P, Duong Van Huyen M, Buisson M, Waldner-Combernoux A, Mahy S, Binois R, Simonet-Lann A, Croisier-Bertin D, Salmon Rousseau A, Martins C, Aumaître H, Galim S, Bani-Sadr F, Lambert D, Nguyen Y, Berger J, Hentzien M, Brodard V, Rey D, Partisani M, Batard M, Cheneau C, Priester M, Bernard-Henry C, de Mautort E, Gantner et S Fafi-Kremer P, Roustant F, Platterier P, Kmiec I, Traore L, Lepuil S, Parlier S, Sicart-Payssan V, Bedel E, Anriamiandrisoa S, Pomes C, Touam F, Louisin C, Mole M, Bolliot C, Catalan P, Mebarki M, Adda-Lievin A, Thilbaut P, Ousidhoum Y, Makhoukhi F, Braik O, Bayoud R, Gatey C, Pietri M, Le Baut V, Ben Rayana R, Bornarel D, Chesnel C, Beniken D, Pauchard M, Akel S, Caldato S, Lions C, Ivanova A, Ritleg AS, Debreux C, Chalal L, Zelie J, Hue H, Soria A, Cavellec M, Breau S, Joulie A, Fisher P, Gohier S, Croisier-Bertin D, Ogoudjobi S, Brochier C, Thoirain-Galvan V, Le Cam M, Carrieri P, Chalouni M, Conte V, Dequae-Merchadou L, Desvallees M, Esterle L, Gilbert C, Gillet S, Knight R, Lemboub T, Marcellin F, Michel L, Mora M, Protopopescu C, Roux P, Spire B, Tezkratt S, Barré T, Baudoin M, Santos M, Di Beo V, Nishimwe M, Wittkop L. Patient-reported symptoms during direct-acting antiviral treatment: A real-life study in HIV-HCV coinfected patients (ANRS CO13 HEPAVIH). J Hepatol 2020; 72:588-591. [PMID: 31924411 DOI: 10.1016/j.jhep.2019.10.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 10/17/2019] [Accepted: 10/25/2019] [Indexed: 01/26/2023]
Affiliation(s)
- Fabienne Marcellin
- Aix Marseille Univ, INSERM, IRD, SESSTIM, Sciences Économiques & Sociales de la Santé & Traitement de l'Information Médicale, Marseille, France; ORS PACA, Observatoire régional de la santé Provence-Alpes-Côte d'Azur, Marseille, France.
| | - Vincent Di Beo
- Aix Marseille Univ, INSERM, IRD, SESSTIM, Sciences Économiques & Sociales de la Santé & Traitement de l'Information Médicale, Marseille, France; ORS PACA, Observatoire régional de la santé Provence-Alpes-Côte d'Azur, Marseille, France
| | - Hugues Aumaitre
- Infectious and Tropical Disease Unit, Perpignan Hospital Center, Perpignan, France
| | - Marion Mora
- Aix Marseille Univ, INSERM, IRD, SESSTIM, Sciences Économiques & Sociales de la Santé & Traitement de l'Information Médicale, Marseille, France; ORS PACA, Observatoire régional de la santé Provence-Alpes-Côte d'Azur, Marseille, France
| | - Linda Wittkop
- Univ. Bordeaux, ISPED, Inserm, Bordeaux Population Health Research Center, Team MORPH3EUS, UMR 1219, CIC-EC 1401, F-33000 Bordeaux, France; CHU de Bordeaux, Pole de santé publique, F-33000 Bordeaux, France
| | - Claudine Duvivier
- AP-HP-Necker Hospital, Infectious Diseases Department, Necker-Pasteur Infectiology Center, IHU Imagine, Université de Paris, INSERM, U1016, Institut Cochin, CNRS, UMR8104, Paris, France; Institut Pasteur, Medical Center of Institut Pasteur, Necker-Pasteur Infectiology Center, Paris, France
| | - Camelia Protopopescu
- Aix Marseille Univ, INSERM, IRD, SESSTIM, Sciences Économiques & Sociales de la Santé & Traitement de l'Information Médicale, Marseille, France; ORS PACA, Observatoire régional de la santé Provence-Alpes-Côte d'Azur, Marseille, France
| | - Karine Lacombe
- Infectious and Tropical Disease Unit, Paris Public Hospitals, Saint-Antoine Hospital, Paris, France; UMR S1136, Pierre Louis Epidemiology and Public Health Institute, Pierre and Marie Curie University, Paris, France
| | - Laure Esterle
- Univ. Bordeaux, ISPED, Inserm, Bordeaux Population Health Research Center, Team MORPH3EUS, UMR 1219, CIC-EC 1401, F-33000 Bordeaux, France
| | - Cyril Berenger
- Aix Marseille Univ, INSERM, IRD, SESSTIM, Sciences Économiques & Sociales de la Santé & Traitement de l'Information Médicale, Marseille, France; ORS PACA, Observatoire régional de la santé Provence-Alpes-Côte d'Azur, Marseille, France
| | - Camille Gilbert
- Univ. Bordeaux, ISPED, Inserm, Bordeaux Population Health Research Center, Team MORPH3EUS, UMR 1219, CIC-EC 1401, F-33000 Bordeaux, France
| | - Olivier Bouchaud
- Infectious and Tropical Disease Unit, Paris Publics Hospitals, Avicenne Hospital, Bobigny, France; Paris 13 Nord University, Bobigny, France
| | - Isabelle Poizot-Martin
- Aix Marseille Univ, INSERM, IRD, SESSTIM, Sciences Économiques & Sociales de la Santé & Traitement de l'Information Médicale, Marseille, France; APHM Sainte-Marguerite, Clinical Immunohematology Unit, Aix Marseille University, Marseille, France
| | - Philippe Sogni
- Université Paris Descartes, Paris, France; INSERM U-1223, Institut Pasteur, Paris, France; Service d'Hépatologie, hôpital Cochin, Assistance Publique - Hôpitaux de Paris, France
| | - Dominique Salmon-Ceron
- Université Paris Descartes, Paris, France; Service Maladies infectieuses et tropicales, AP-HP, Hôpital Cochin, Paris, France
| | - Patrizia Carrieri
- Aix Marseille Univ, INSERM, IRD, SESSTIM, Sciences Économiques & Sociales de la Santé & Traitement de l'Information Médicale, Marseille, France; ORS PACA, Observatoire régional de la santé Provence-Alpes-Côte d'Azur, Marseille, France
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Bernard N, Ender J, Turton E. The use of lung-ultrasound to confirm correct placement of left sided double lumen tubes. J Cardiothorac Vasc Anesth 2018. [DOI: 10.1053/j.jvca.2018.08.178] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Mariet AS, Mauny F, Pujol S, Thiriez G, Quantin C, Bernard N. Multiple pregnancies and environmental exposure: An impact of air pollution on fetal growth? Rev Epidemiol Sante Publique 2018. [DOI: 10.1016/j.respe.2018.05.031] [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: 10/28/2022] Open
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Mehraj V, Ramendra R, Costiniuk C, Lebouché B, Ponte R, Thomas R, Szabo J, Coté P, Leblanc R, Baril JG, Tremblay C, Bernard N, Sheppard DC, Routy JP. Fungal microbial translocation changes during treated acute and chronic HIV infection. J Virus Erad 2018. [DOI: 10.1016/s2055-6640(20)30369-1] [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: 11/16/2022] Open
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10
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Lafarge L, Bourguignon L, Bernard N, Vial T, Dehan-Moya MJ, De La Gastine B, Goutelle S. [Pharmacokinetic risk factors of beta-blockers overdose in the elderly: Case report and pharmacology approach]. Ann Cardiol Angeiol (Paris) 2018; 67:91-97. [PMID: 29544975 DOI: 10.1016/j.ancard.2018.02.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2017] [Accepted: 02/18/2018] [Indexed: 12/15/2022]
Abstract
Beta-blockers are widely prescribed in elderly patients and may induce severe adverse drug reactions. We report a case of bisoprolol-induced bradycardia in an elderly patient with impaired renal function and use of cytochrome P450 inhibitors. A literature review has been performed in order to analyze pharmacokinetic risk factors of beta-blockers overdosing in geriatrics. Various mechanisms can result in decreased elimination of beta-blockers. These mechanisms vary according to the beta-blocker agent and may be combined in some individuals, especially elderly patients. This can lead to unexpected overexposure. Knowledge about drug interactions and pharmacokinetic elimination pathways is important for preventing overexposure and adverse drug reactions when using beta-blockers.
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Affiliation(s)
- L Lafarge
- Service pharmaceutique, centre hospitalier Pierre-Garraud, groupement hospitalier Nord, hospices civils de Lyon, 136, rue Commandant-Charcot, 69005 Lyon, France.
| | - L Bourguignon
- Service pharmaceutique, centre hospitalier Pierre-Garraud, groupement hospitalier Nord, hospices civils de Lyon, 136, rue Commandant-Charcot, 69005 Lyon, France; ISPB, faculté de pharmacie de Lyon, université de Lyon-1, 69008 Lyon, France; UMR CNRS 5558, laboratoire de biométrie et biologie évolutive, université Lyon-1, 69100 Villeurbanne, France
| | - N Bernard
- Centre régional de pharmacovigilance, hospices civils de Lyon, 162, avenue Lacassagne, 69003 Lyon, France
| | - T Vial
- Centre régional de pharmacovigilance, hospices civils de Lyon, 162, avenue Lacassagne, 69003 Lyon, France
| | - M-J Dehan-Moya
- Gériatrie, centre hospitalier Pierre-Garraud, groupement hospitalier Nord, hospices civils de Lyon, 136, rue Commandant-Charcot, 69005 Lyon, France
| | - B De La Gastine
- Gériatrie, centre hospitalier Pierre-Garraud, groupement hospitalier Nord, hospices civils de Lyon, 136, rue Commandant-Charcot, 69005 Lyon, France
| | - S Goutelle
- Service pharmaceutique, centre hospitalier Pierre-Garraud, groupement hospitalier Nord, hospices civils de Lyon, 136, rue Commandant-Charcot, 69005 Lyon, France; ISPB, faculté de pharmacie de Lyon, université de Lyon-1, 69008 Lyon, France; UMR CNRS 5558, laboratoire de biométrie et biologie évolutive, université Lyon-1, 69100 Villeurbanne, France
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Boisvert M, Zhang W, Elrod E, Bernard N, Villeneuve J, Bruneau J, Marcotrigiano J, Shoukry N, Grakoui A. A33 NOVEL E2 GLYCOPROTEIN TETRAMER DETECTS HCV-SPECIFIC MEMORY B CELLS. J Can Assoc Gastroenterol 2018. [DOI: 10.1093/jcag/gwy008.034] [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: 11/12/2022] Open
Affiliation(s)
- M Boisvert
- Centre de recherche du CHUM, Montreal, QC, Canada
| | - W Zhang
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine; Yerkes National Primate Research Center, Emory Vaccine Center, Atlanta, GA
| | - E Elrod
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine; Yerkes National Primate Research Center, Emory Vaccine Center, Atlanta, GA
| | - N Bernard
- Research Institute of the McGill University Health Centre (RI-MUHC) and Division of Experimental Medicine, McGill University, Montreal, QC, Canada
| | - J Villeneuve
- Centre de recherche du CHUM, Montreal, QC, Canada
| | - J Bruneau
- Centre de recherche du CHUM, Montreal, QC, Canada
| | - J Marcotrigiano
- Center for Advanced Biotechnology and Medicine, Dept of Chemistry and Chemical Biology, Rutgers University, Piscataway, NJ
| | - N Shoukry
- Centre de recherche du CHUM, Montreal, QC, Canada
| | - A Grakoui
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine; Yerkes National Primate Research Center, Emory Vaccine Center, Atlanta, GA
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Durand M, Chartrand-Lefebvre C, Baril JG, Trottier S, Trottier B, Harris M, Walmsley S, Conway B, Wong A, Routy JP, Kovacs C, MacPherson PA, Monteith KM, Mansour S, Thanassoulis G, Abrahamowicz M, Zhu Z, Tsoukas C, Ancuta P, Bernard N, Tremblay CL. The Canadian HIV and aging cohort study - determinants of increased risk of cardio-vascular diseases in HIV-infected individuals: rationale and study protocol. BMC Infect Dis 2017; 17:611. [PMID: 28893184 PMCID: PMC5594495 DOI: 10.1186/s12879-017-2692-2] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 08/17/2017] [Indexed: 01/08/2023] Open
Abstract
Background With potent antiretroviral drugs, HIV infection is becoming a chronic disease. Emergence of comorbidities, particularly cardiovascular disease (CVD) has become a leading concern for patients living with the infection. We hypothesized that the chronic and persistent inflammation and immune activation associated with HIV disease leads to accelerated aging, characterized by CVD. This will translate into higher incidence rates of CVD in HIV infected participants, when compared to HIV negative participants, after adjustment for traditional CVD risk factors. When characterized further using cardiovascular imaging, biomarkers, immunological and genetic profiles, CVD associated with HIV will show different characteristics compared to CVD in HIV-negative individuals. Methods/design The Canadian HIV and Aging cohort is a prospective, controlled cohort study funded by the Canadian Institutes of Health Research. It will recruit patients living with HIV who are aged 40 years or older or have lived with HIV for 15 years or more. A control population, frequency matched for age, sex, and smoking status, will be recruited from the general population. Patients will attend study visits at baseline, year 1, 2, 5 and 8. At each study visit, data on complete medical and pharmaceutical history will be captured, along with anthropometric measures, a complete physical examination, routine blood tests and electrocardiogram. Consenting participants will also contribute blood samples to a research biobank. The primary outcome is incidence of a composite of: myocardial infarction, coronary revascularization, stroke, hospitalization for angina or congestive heart failure, revascularization or amputation for peripheral artery disease, or cardiovascular death. Preplanned secondary outcomes are all-cause mortality, incidence of the metabolic syndrome, incidence of type 2 diabetes, incidence of renal failure, incidence of abnormal bone mineral density and body fat distribution. Patients participating to the cohort will be eligible to be enrolled in four pre-planned sub-studies of cardiovascular imaging, glucose metabolism, immunological and genetic risk profile. Discussion The Canadian HIV and Aging Cohort will provide insights on pathophysiological pathways leading to premature CVD for patients living with HIV. Electronic supplementary material The online version of this article (10.1186/s12879-017-2692-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Madeleine Durand
- Internal Medicine service, Centre de Recherche du CHUM, Montréal, QC, H2J 1T8, Canada.
| | | | - Jean-Guy Baril
- Clinique médicale urbaine du Quartier latin, Montreal, Canada
| | - Sylvie Trottier
- Clinique médicale urbaine du Quartier latin, Montreal, Canada
| | - Benoit Trottier
- Clinique médicale urbaine du Quartier latin, Montreal, Canada
| | | | - Sharon Walmsley
- Division of Infectious Diseases, University Health Network, Toronto, Canada
| | - Brian Conway
- Division of Infectious Diseases, University Health Network, Toronto, Canada
| | - Alexander Wong
- Infectious Diseases Clinic, Regina Qu'Appelle Health Region, Regina, Canada
| | - Jean-Pierre Routy
- Chronic viral infection service and Division of Hematology, McGill University Health Centre, Montreal, Canada
| | - Colin Kovacs
- Maple Leaf Medical HIV Research Collaborative Inc., Toronto, Canada
| | - Paul A MacPherson
- The Ottawa Hospital Research Institute and the University of Ottawa, Ottawa, Canada
| | | | - Samer Mansour
- The Ottawa Hospital Research Institute and the University of Ottawa, Ottawa, Canada
| | - George Thanassoulis
- Preventive and Genomic Cardiology, McGill University Health Center and Research Institute, Montreal, Canada
| | - Michal Abrahamowicz
- Department of Epidemiology and Biostatistics, McGill University, Montreal, Canada
| | - Zhitong Zhu
- Department of Epidemiology and Biostatistics, McGill University, Montreal, Canada
| | - Christos Tsoukas
- McGill University, Immunology service, Montreal General Hospital, Montreal, Canada
| | | | - Nicole Bernard
- Research Institute of the McGill University Health Center, Division of Experimental Medicine, McGill University, Division of Clinical Immunology, McGill University health Center (MUHC), Chronic Viral Illness Service, Montreal, Canada
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13
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Weber E, Moulis G, Mahévas M, Guy C, Lioger B, Durieu I, Hunault M, Ramanantsoa M, Royer B, Default A, Pérault-Pochat MC, Moachon L, Bernard N, Bardy G, Jonville-Bera AP, Geniaux H, Godeau B, Cathébras P. Thromboses sous agonistes du récepteur de la thrombopoïétine au cours du purpura thrombopénique immunologique. Étude rétrospective multicentrique en France. Rev Med Interne 2017; 38:167-175. [DOI: 10.1016/j.revmed.2016.09.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Revised: 08/01/2016] [Accepted: 09/22/2016] [Indexed: 12/11/2022]
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Nouts C, Bonarek M, Morlat P, Delevaux I, Bonnet F, Lacoste D, Bernard N, Beylot J. The absence of hyperbilirubinaemia is highly predictive of treatment failure in advanced HIV-infected patients treated with indinavir. Int J STD AIDS 2017. [DOI: 10.1177/095646240101200106] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In order to determine prognostic factors associated with treatment failure (TF) in advanced HIV-infected patients treated with a regimen including indinavir, a prospective cohort study of 80 patients was set up between 1 March and 31 December 1996. TF time was calculated using the Kaplan–Meier method, from treatment induction to the first of the following events: treatment modification for adverse event or lack of significant virological and/or immunological response, AIDS-defining diagnosis or death. Date of point was 31 December 1998. Multivariate analysis was performed using a Cox model. At baseline, 60% of the patients were AIDS-free, median viral load and CD4+ count were respectively 4.8 log/ml and 79/μl. After a median follow-up of 26 months, 70% of the patients experienced a TF in a median time of 8 months. Seventy-two per cent presented an hyperbilirubinaemia (>2 mg/dl). In multivariate analysis, initial AIDS stage (hazard ratios [HR]=1.94, P=0.04) and digestive intolerance (HR=2.32, P=0.003) were predictive of TF. Conversely, hyperbilirubinaemia was associated with a better outcome (HR=0.35, P<0.0001). These 2 latter parameters very likely reflected patients' treatment compliance.
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Affiliation(s)
- C Nouts
- Saint André University Hospital, Bordeaux, France
| | - M Bonarek
- Saint André University Hospital, Bordeaux, France
| | - P Morlat
- Saint André University Hospital, Bordeaux, France
| | - I Delevaux
- Saint André University Hospital, Bordeaux, France
| | - F Bonnet
- Saint André University Hospital, Bordeaux, France
| | - D Lacoste
- Saint André University Hospital, Bordeaux, France
| | - N Bernard
- Saint André University Hospital, Bordeaux, France
| | - J Beylot
- Saint André University Hospital, Bordeaux, France
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15
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Mariet AS, Bernard N, Pujol S, Parmentier AL, Quantin C, Mauny F. Indice de déprivation et exposition environnementale en milieu urbain : bruit et pollution de l’air à Besançon, France. Rev Epidemiol Sante Publique 2016. [DOI: 10.1016/j.respe.2016.06.289] [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: 10/21/2022] Open
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Bernard N, Mohammed A, Edwards A, Bridgemoha P. Effect of Aloe barbadense Leaf and Gel Aqueous Extracts During the Starter and Finishing Phases of Broiler Production. ACTA ACUST UNITED AC 2015. [DOI: 10.3923/ijps.2016.15.20] [Citation(s) in RCA: 2] [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: 11/15/2022]
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17
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Sauvaget L, Rolland L, Dabadie S, Desblaches J, Bernard N, Vandenhende MA, Bonnet F, Pédeboscq S, Morlat P. Rapport sur l’utilisation des inhibiteurs de la pompe à protons : les recommandations françaises sont-elles respectées ? Rev Med Interne 2015; 36:651-7. [DOI: 10.1016/j.revmed.2015.04.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Revised: 04/07/2015] [Accepted: 04/29/2015] [Indexed: 12/13/2022]
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Affiliation(s)
- M Salvi
- Thyroid Research Unit, McGill University, Montreal General Hospital Research Institute, Que., Canada
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19
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Bernard N, Jantzem H, Becker M, Pecriaux C, Bénard-Laribière A, Montastruc JL, Descotes J, Vial T. Severe adverse effects of bromocriptine in lactation inhibition: a pharmacovigilance survey. BJOG 2015; 122:1244-51. [DOI: 10.1111/1471-0528.13352] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/19/2015] [Indexed: 10/23/2022]
Affiliation(s)
- N Bernard
- Centre de Pharmacovigilance - Centre Antipoison; Hospices Civils de Lyon; Lyon France
| | - H Jantzem
- Centre de Pharmacovigilance; CHU de Brest; Hôpital de la Cavale Blanche; Brest France
| | - M Becker
- Centre de Pharmacovigilance; Hôpital Central; Nancy France
| | - C Pecriaux
- Centre de Pharmacovigilance; Groupe Hospitalier Cochin; Bâtiment Lavoisier; Paris France
| | | | - JL Montastruc
- Service de Pharmacologie Médicale et Clinique; Centre Midi-Pyrénées de Pharmacovigilance; de Pharmacoépidémiologie et d'Informations sur le Médicament; équipe de pharmacoépidémiologie; UMR INSERM 1027; Faculté de Médecine; Centre Hospitalo-universitaire; Toulouse France
| | - J Descotes
- Centre de Pharmacovigilance - Centre Antipoison; Hospices Civils de Lyon; Lyon France
| | - T Vial
- Centre de Pharmacovigilance - Centre Antipoison; Hospices Civils de Lyon; Lyon France
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Olvera A, Pérez-Alvarez S, Ganoza C, Lama J, Bernard N, Sanchez J, Brander C. Combined Effect of HLA-C*04:01 and KIR2DS4 on Increased HIV Viral Loads. AIDS Res Hum Retroviruses 2014. [DOI: 10.1089/aid.2014.5064.abstract] [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: 11/12/2022] Open
Affiliation(s)
- Alex Olvera
- IrsiCaixa AIDS Research Institute - HIVACAT, Badalona, Spain
| | - Susana Pérez-Alvarez
- IrsiCaixa AIDS Research Institute - HIVACAT, Badalona, Spain
- Universitat Autònoma de Barcelona, Barcelona, Spain
| | | | - Javier Lama
- Asociación Civil IMPACTA Salud y Educacion, Lima, Peru
| | - Nicole Bernard
- Research Institute of the McGill University Health Centre, Montreal, QC, Canada
| | - Jorge Sanchez
- Asociación Civil IMPACTA Salud y Educacion, Lima, Peru
| | - Christian Brander
- IrsiCaixa AIDS Research Institute - HIVACAT, Badalona, Spain
- Universitat Autònoma de Barcelona, Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
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21
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Valiente-Echeverría F, Melnychuk L, Vyboh K, Ajamian L, Gallouzi IE, Bernard N, Mouland AJ. eEF2 and Ras-GAP SH3 domain-binding protein (G3BP1) modulate stress granule assembly during HIV-1 infection. Nat Commun 2014; 5:4819. [PMID: 25229650 PMCID: PMC4978539 DOI: 10.1038/ncomms5819] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Accepted: 07/28/2014] [Indexed: 12/26/2022] Open
Abstract
Stress granules (SG) are translationally silent sites of RNA triage induced by environmental stresses including viral infection. Here we show that HIV-1 Gag blocks SG assembly irrespective of eIF2α phosphorylation and even when SG assembly is forced by overexpression of Ras-GAP SH3 domain-binding protein (G3BP1) or TIAR. The overexposed loops in the amino-terminal capsid domain of Gag and host eukaryotic elongation factor 2 (eEF2) are found to be critical for the SG blockade via interaction. Moreover, cyclophilin A (CypA) stabilizes the Gag-eEF2 association. eEF2 depletion not only lifts the SG blockade but also results in impaired virus production and infectivity. Gag also disassembles preformed SGs by recruiting G3BP1, thereby displacing eEF2, revealing another unsuspected virus-host interaction involved in the HIV-1-imposed SG blockade. Understanding how HIV-1 counters anti-viral stress responses will lay the groundwork for new therapeutic strategies to bolster host cell immune defences against HIV-1 and other pathogens.
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Affiliation(s)
- Fernando Valiente-Echeverría
- HIV-1 RNA Trafficking Laboratory, Lady Davis Institute at the Jewish General Hospital, Montréal, Québec H3T 1E2, Canada
- Department of Medicine, McGill University, Montréal, Québec H3A 0G4, Canada
| | - Luca Melnychuk
- HIV-1 RNA Trafficking Laboratory, Lady Davis Institute at the Jewish General Hospital, Montréal, Québec H3T 1E2, Canada
- Department of Microbiology and Immunology, McGill University, Montréal, Québec H3A 0G4, Canada
| | - Kishanda Vyboh
- HIV-1 RNA Trafficking Laboratory, Lady Davis Institute at the Jewish General Hospital, Montréal, Québec H3T 1E2, Canada
- Department of Microbiology and Immunology, McGill University, Montréal, Québec H3A 0G4, Canada
| | - Lara Ajamian
- HIV-1 RNA Trafficking Laboratory, Lady Davis Institute at the Jewish General Hospital, Montréal, Québec H3T 1E2, Canada
- Department of Medicine, McGill University, Montréal, Québec H3A 0G4, Canada
| | | | - Nicole Bernard
- Department of Medicine, McGill University, Montréal, Québec H3A 0G4, Canada
- Research Institute of the McGill University Health Centre, Montréal, Québec H3H 2R9, Canada
| | - Andrew J. Mouland
- HIV-1 RNA Trafficking Laboratory, Lady Davis Institute at the Jewish General Hospital, Montréal, Québec H3T 1E2, Canada
- Department of Medicine, McGill University, Montréal, Québec H3A 0G4, Canada
- Department of Microbiology and Immunology, McGill University, Montréal, Québec H3A 0G4, Canada
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Richard J, Veillette M, Batraville LA, Coutu M, Chapleau JP, Bonsignori M, Bernard N, Tremblay C, Roger M, Kaufmann DE, Finzi A. Flow cytometry-based assay to study HIV-1 gp120 specific antibody-dependent cellular cytotoxicity responses. J Virol Methods 2014; 208:107-14. [PMID: 25125129 DOI: 10.1016/j.jviromet.2014.08.003] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [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: 05/13/2014] [Revised: 07/28/2014] [Accepted: 08/01/2014] [Indexed: 11/24/2022]
Abstract
Increased attention on the role of Fc-mediated effector functions against HIV-1 has led to renewed interest into the role that antibody-dependent cellular cytotoxicity (ADCC) could play in controlling viral transmission and/or the rate of disease progression. While (51)Chromium release assays have traditionally been used to study ADCC responses against HIV-1, a number of alternative flow-cytometry-based assays were recently developed. In this study, an alternative flow-cytometry-based assay was established to allow non-radioactive measurement of ADCC-mediated elimination of HIV-1 gp120 envelope glycoprotein (Env)-coated target cells. This assay relies on staining target and effector cells with different dyes, which allows precise gating and permits the calculation of the number of surviving target cells by normalization to flow-cytometry particles. By using small concentrations of recombinant gp120 Env, suitable targets cells that recapitulate the ADCC response mediated against HIV-1-infected cells were generated. Finally, this method was applied successfully to screen human sera for ADCC activity directed against HIV-1 gp120 Env.
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Affiliation(s)
- Jonathan Richard
- Centre de Recherche du CHUM, Université de Montréal, Montreal, Quebec, Canada; Department of Microbiology, Infectiology and Immunology, Université de Montréal, Montreal, Quebec, Canada
| | - Maxime Veillette
- Centre de Recherche du CHUM, Université de Montréal, Montreal, Quebec, Canada; Department of Microbiology, Infectiology and Immunology, Université de Montréal, Montreal, Quebec, Canada
| | - Laurie-Anne Batraville
- Centre de Recherche du CHUM, Université de Montréal, Montreal, Quebec, Canada; Department of Microbiology, Infectiology and Immunology, Université de Montréal, Montreal, Quebec, Canada
| | - Mathieu Coutu
- Centre de Recherche du CHUM, Université de Montréal, Montreal, Quebec, Canada; Department of Microbiology, Infectiology and Immunology, Université de Montréal, Montreal, Quebec, Canada
| | - Jean-Philippe Chapleau
- Centre de Recherche du CHUM, Université de Montréal, Montreal, Quebec, Canada; Department of Microbiology, Infectiology and Immunology, Université de Montréal, Montreal, Quebec, Canada
| | | | - Nicole Bernard
- Research Institute of the McGill University Health Centre, Division of Experimental Medicine, McGill University, Montreal, Quebec, Canada
| | - Cécile Tremblay
- Centre de Recherche du CHUM, Université de Montréal, Montreal, Quebec, Canada; Department of Microbiology, Infectiology and Immunology, Université de Montréal, Montreal, Quebec, Canada; Institut National de santé publique du Québec, Canada
| | - Michel Roger
- Centre de Recherche du CHUM, Université de Montréal, Montreal, Quebec, Canada; Department of Microbiology, Infectiology and Immunology, Université de Montréal, Montreal, Quebec, Canada
| | - Daniel E Kaufmann
- Centre de Recherche du CHUM, Université de Montréal, Montreal, Quebec, Canada; Department of Microbiology, Infectiology and Immunology, Université de Montréal, Montreal, Quebec, Canada; Ragon Institute of Massachusetts General Hospital, Massachusetts Institute of Technology, and Harvard, Cambridge, MA, USA
| | - Andrés Finzi
- Centre de Recherche du CHUM, Université de Montréal, Montreal, Quebec, Canada; Department of Microbiology, Infectiology and Immunology, Université de Montréal, Montreal, Quebec, Canada; Department of Microbiology and Immunology, McGill University, Montreal, Quebec, Canada.
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Bernard N, Bonami J, Gagnant B. Un outil pluridisciplinaire pour évaluer la pénibilité. ARCH MAL PROF ENVIRO 2014. [DOI: 10.1016/j.admp.2014.03.087] [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: 11/17/2022]
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Badie C, Kabacik S, Balagurunathan Y, Bernard N, Brengues M, Faggioni G, Greither R, Lista F, Peinnequin A, Poyot T, Herodin F, Missel A, Terbrueggen B, Zenhausern F, Rothkamm K, Meineke V, Braselmann H, Beinke C, Abend M. Laboratory intercomparison of gene expression assays. Radiat Res 2013; 180:138-48. [PMID: 23886340 DOI: 10.1667/rr3236.1] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The possibility of a large-scale acute radiation exposure necessitates the development of new methods that could provide rapid individual dose estimates with high sample throughput. The focus of the study was an intercomparison of laboratories' dose-assessment performances using gene expression assays. Lithium-heparinized whole blood from one healthy donor was irradiated (240 kVp, 1 Gy/min) immediately after venipuncture at approximately 37°C using single X-ray doses. Blood samples to establish calibration curves (0.25-4 Gy) as well as 10 blinded test samples (0.1-6.4 Gy) were incubated for 24 h at 37°C supplemented with an equal volume of medium and 10% fetal calf serum. For quantitative reverse transcription polymerase chain reaction (qRT-PCR), samples were lysed, stored at -20°C and shipped on ice. For the Chemical Ligation Dependent Probe Amplification methodology (CLPA), aliquots were incubated in 2 ml CLPA reaction buffer (DxTerity), mixed and shipped at room temperature. Assays were run in each laboratory according to locally established protocols. The mean absolute difference (MAD) of estimated doses relative to the true doses (in Gy) was calculated. We also merged doses into binary categories reflecting aspects of clinical/diagnostic relevance and examined accuracy, sensitivity and specificity. The earliest reported time on dose estimates was <8 h. The standard deviation of technical replicate measurements in 75% of all measurements was below 11%. MAD values of 0.3-0.5 Gy and 0.8-1.3 Gy divided the laboratories contributions into two groups. These fourfold differences in accuracy could be primarily explained by unexpected variances of the housekeeping gene (P = 0.0008) and performance differences in processing of calibration and blinded test samples by half of the contributing laboratories. Reported gene expression dose estimates aggregated into binary categories in general showed an accuracies and sensitivities of 93-100% and 76-100% for the groups, with low MAD and high MAD, respectively. In conclusion, gene expression-based dose estimates were reported quickly, and for laboratories with MAD between 0.3-0.5 Gy binary dose categories of clinical significance could be discriminated with an accuracy and sensitivity comparable to established cytogenetic assays.
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Affiliation(s)
- C Badie
- Public Health England, Centre for Radiation, Chemical and Environmental Hazards, Chilton, Didcot, Oxon OX11 0RQ, United Kingdom
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Rothkamm K, Beinke C, Romm H, Badie C, Balagurunathan Y, Barnard S, Bernard N, Boulay-Greene H, Brengues M, De Amicis A, De Sanctis S, Greither R, Herodin F, Jones A, Kabacik S, Knie T, Kulka U, Lista F, Martigne P, Missel A, Moquet J, Oestreicher U, Peinnequin A, Poyot T, Roessler U, Scherthan H, Terbrueggen B, Thierens H, Valente M, Vral A, Zenhausern F, Meineke V, Braselmann H, Abend M. Comparison of established and emerging biodosimetry assays. Radiat Res 2013; 180:111-9. [PMID: 23862692 DOI: 10.1667/rr3231.1] [Citation(s) in RCA: 105] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Rapid biodosimetry tools are required to assist with triage in the case of a large-scale radiation incident. Here, we aimed to determine the dose-assessment accuracy of the well-established dicentric chromosome assay (DCA) and cytokinesis-block micronucleus assay (CBMN) in comparison to the emerging γ-H2AX foci and gene expression assays for triage mode biodosimetry and radiation injury assessment. Coded blood samples exposed to 10 X-ray doses (240 kVp, 1 Gy/min) of up to 6.4 Gy were sent to participants for dose estimation. Report times were documented for each laboratory and assay. The mean absolute difference (MAD) of estimated doses relative to the true doses was calculated. We also merged doses into binary dose categories of clinical relevance and examined accuracy, sensitivity and specificity of the assays. Dose estimates were reported by the first laboratories within 0.3-0.4 days of receipt of samples for the γ-H2AX and gene expression assays compared to 2.4 and 4 days for the DCA and CBMN assays, respectively. Irrespective of the assay we found a 2.5-4-fold variation of interlaboratory accuracy per assay and lowest MAD values for the DCA assay (0.16 Gy) followed by CBMN (0.34 Gy), gene expression (0.34 Gy) and γ-H2AX (0.45 Gy) foci assay. Binary categories of dose estimates could be discriminated with equal efficiency for all assays, but at doses ≥1.5 Gy a 10% decrease in efficiency was observed for the foci assay, which was still comparable to the CBMN assay. In conclusion, the DCA has been confirmed as the gold standard biodosimetry method, but in situations where speed and throughput are more important than ultimate accuracy, the emerging rapid molecular assays have the potential to become useful triage tools.
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Affiliation(s)
- K Rothkamm
- Public Health England, Centre for Radiation, Chemical and Environmental Hazards, Chilton, Didcot, Oxon OX11 0RQ, United Kingdom
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Bernard N, Elefant E, Carlier P, Tebacher M, Barjhoux CE, Bos-Thompson MA, Amar E, Descotes J, Vial T. Continuation of pregnancy after first-trimester exposure to mifepristone: an observational prospective study. BJOG 2013; 120:568-74. [DOI: 10.1111/1471-0528.12147] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/02/2012] [Indexed: 11/28/2022]
Affiliation(s)
- N Bernard
- Centre Régional de Pharmacovigilance; Hospices Civils de Lyon; Lyon; France
| | - E Elefant
- Centre de Référence sur les Agents Tératogènes; Hôpital Trousseau; Paris; France
| | - P Carlier
- Centre Régional de Pharmacovigilance; Hôpital Fernand Widal; Paris; France
| | - M Tebacher
- Centre Régional de Pharmacovigilance; Hôpital Civil; Strasbourg; France
| | - CE Barjhoux
- Centre Régional de Pharmacovigilance; Centre Hospitalo-Universitaire; Grenoble; France
| | - MA Bos-Thompson
- Centre Régional de Pharmacovigilance; Hôpital Lapeyronie; Montpellier; France
| | - E Amar
- Registre des malformations en Rhône-Alpes; Lyon; France
| | - J Descotes
- Centre Régional de Pharmacovigilance; Hospices Civils de Lyon; Lyon; France
| | - T Vial
- Centre Régional de Pharmacovigilance; Hospices Civils de Lyon; Lyon; France
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Peix C, Vandenhende MA, Bonnet F, Lacoste D, Bernard N, Youssef J, Hessamfar M, Pometan JP, Morlat P. [Adherence between antibiotic prescriptions and guidelines in an internal medicine ward: an evaluation of professional practices]. Rev Med Interne 2013; 34:456-9. [PMID: 23318197 DOI: 10.1016/j.revmed.2012.11.009] [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: 06/19/2012] [Revised: 11/05/2012] [Accepted: 11/26/2012] [Indexed: 10/27/2022]
Abstract
INTRODUCTION This is an evaluation of professional practices (EPP) on antibiotic therapy in an internal medicine ward. MATERIAL AND METHODS A 6-month prospective review of antibiotic prescriptions and their comparisons with local and national guidelines (drug, daily dose, administration, and duration) were performed. RESULTS Antibiotic therapy on 227 infectious episodes was collected. According to local guidelines, we found 56% of totally respected (lower respiratory tract infections: 38%, urinary tract infections: 88% and skin infections: 73%), 33% of partially respected and 11% of non-appropriate prescriptions. Considering national guidelines for lower respiratory tract infections as references, the results were: totally respected prescriptions 81%, partially respected prescriptions 16%, and non-appropriate prescriptions 3%. CONCLUSION This evaluation of the prescriptions allowed setting up long-lasting actions to improve clinical practice. This approach anticipates the procedures of EPP that will be needed for hospital accreditation and highlights the importance of considering several guidelines for the interpretation of the results.
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Affiliation(s)
- C Peix
- Pharmacie, groupe hospitalier Saint-André, 1 rue Jean-Burguet, Bordeaux cedex, France
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Rughoobur-Bheekhee A, Mowlah S, Vandenhende M, Bheekhee R, Desblache J, Lacoste D, Bernard N, Morlat P, Bonnet F. Dosage de procalcitonine dans la gestion de l’antibiothérapie dans les infections respiratoires basses en pratique clinique. Rev Med Interne 2012. [DOI: 10.1016/j.revmed.2012.10.036] [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: 10/27/2022]
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Jaquiéry J, Stoeckel S, Nouhaud P, Mieuzet L, Mahéo F, Legeai F, Bernard N, Bonvoisin A, Vitalis R, Simon JC. Genome scans reveal candidate regions involved in the adaptation to host plant in the pea aphid complex. Mol Ecol 2012; 21:5251-64. [PMID: 23017212 DOI: 10.1111/mec.12048] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2012] [Accepted: 08/06/2012] [Indexed: 11/26/2022]
Abstract
A major goal in evolutionary biology is to uncover the genetic basis of adaptation. Divergent selection exerted on ecological traits may result in adaptive population differentiation and reproductive isolation and affect differentially the level of genetic divergence along the genome. Genome-wide scan of large sets of individuals from multiple populations is a powerful approach to identify loci or genomic regions under ecologically divergent selection. Here, we focused on the pea aphid, a species complex of divergent host races, to explore the organization of the genomic divergence associated with host plant adaptation and ecological speciation. We analysed 390 microsatellite markers located at variable distances from predicted genes in replicate samples of sympatric populations of the pea aphid collected on alfalfa, red clover and pea, which correspond to three common host-adapted races reported in this species complex. Using a method that accounts for the hierarchical structure of our data set, we found a set of 11 outlier loci that show higher genetic differentiation between host races than expected under the null hypothesis of neutral evolution. Two of the outliers are close to olfactory receptor genes and three other nearby genes encoding salivary proteins. The remaining outliers are located in regions with genes of unknown functions, or which functions are unlikely to be involved in interactions with the host plant. This study reveals genetic signatures of divergent selection across the genome and provides an inventory of candidate genes responsible for plant specialization in the pea aphid, thereby setting the stage for future functional studies.
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Affiliation(s)
- J Jaquiéry
- INRA, UMR 1349, Institute of Genetics, Environment and Plant Protection, Domaine de la Motte, BP 35327, 35653, Le Rheu Cedex, France
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Peretz Y, He Z, Shi Y, Yassine-Diab B, Goulet JP, Bordi R, Filali-Mouhim A, Loubert JB, El-Far M, Dupuy FP, Boulassel MR, Tremblay C, Routy JP, Bernard N, Balderas R, Haddad EK, Sékaly RP. CD160 and PD-1 co-expression on HIV-specific CD8 T cells defines a subset with advanced dysfunction. PLoS Pathog 2012; 8:e1002840. [PMID: 22916009 PMCID: PMC3420930 DOI: 10.1371/journal.ppat.1002840] [Citation(s) in RCA: 115] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2011] [Accepted: 06/20/2012] [Indexed: 12/27/2022] Open
Abstract
Chronic viral infections lead to persistent CD8 T cell activation and functional exhaustion. Expression of programmed cell death-1 (PD-1) has been associated to CD8 T cell dysfunction in HIV infection. Herein we report that another negative regulator of T cell activation, CD160, was also upregulated on HIV-specific CD8 T lymphocytes mostly during the chronic phase of infection. CD8 T cells that expressed CD160 or PD-1 were still functional whereas co-expression of CD160 and PD-1 on CD8 T cells defined a novel subset with all the characteristics of functionally exhausted T cells. Blocking the interaction of CD160 with HVEM, its natural ligand, increased HIV-specific CD8 T cell proliferation and cytokine production. Transcriptional profiling showed that CD160−PD-1+CD8 T cells encompassed a subset of CD8+ T cells with activated transcriptional programs, while CD160+PD-1+ T cells encompassed primarily CD8+ T cells with an exhausted phenotype. The transcriptional profile of CD160+PD-1+ T cells showed the downregulation of the NFκB transcriptional node and the upregulation of several inhibitors of T cell survival and function. Overall, we show that CD160 and PD-1 expressing subsets allow differentiating between activated and exhausted CD8 T cells further reinforcing the notion that restoration of function will require multipronged approaches that target several negative regulators. HIV infection is widely known to cause generalized immune activation and immune exhaustion ultimately leading to HIV disease progression. Several studies have suggested over the years that the accumulation of inhibitory signalling proteins on the surface of responding cells is linked to immune exhaustion in HIV. It has become paramount to distinguish functionally exhausted CD8 T cells from activated HIV-specific CD8 T cells because both cell types have different fates. Using specific cell surface markers, we were able to identify these different cell types and show that HIV-infected patients accumulate dysfunctional CD8 T cells over time. Importantly, we show that this dysfunction is reversible.
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Affiliation(s)
- Yoav Peretz
- Caprion/ImmuneCarta Services, Montreal, Quebec, Canada
- Centre de Recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Hôpital St-Luc, Montreal, Quebec, Canada
- Laboratoire d'Immunologie, Département de Microbiologie et d'Immunologie, Université de Montreal, Montreal, Quebec, Canada
| | - Zhong He
- Vaccine & Gene Therapy Institute Florida, Port St. Lucie, Florida, United States of America
| | - Yu Shi
- Vaccine & Gene Therapy Institute Florida, Port St. Lucie, Florida, United States of America
| | - Bader Yassine-Diab
- Centre de Recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Hôpital St-Luc, Montreal, Quebec, Canada
- Laboratoire d'Immunologie, Département de Microbiologie et d'Immunologie, Université de Montreal, Montreal, Quebec, Canada
| | - Jean-Philippe Goulet
- Centre de Recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Hôpital St-Luc, Montreal, Quebec, Canada
- Laboratoire d'Immunologie, Département de Microbiologie et d'Immunologie, Université de Montreal, Montreal, Quebec, Canada
| | - Rebeka Bordi
- Vaccine & Gene Therapy Institute Florida, Port St. Lucie, Florida, United States of America
| | - Ali Filali-Mouhim
- Vaccine & Gene Therapy Institute Florida, Port St. Lucie, Florida, United States of America
| | - Jean-Baptiste Loubert
- Centre de Recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Hôpital St-Luc, Montreal, Quebec, Canada
- Laboratoire d'Immunologie, Département de Microbiologie et d'Immunologie, Université de Montreal, Montreal, Quebec, Canada
| | - Mohamed El-Far
- Centre de Recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Hôpital St-Luc, Montreal, Quebec, Canada
- Laboratoire d'Immunologie, Département de Microbiologie et d'Immunologie, Université de Montreal, Montreal, Quebec, Canada
| | - Franck P. Dupuy
- Vaccine & Gene Therapy Institute Florida, Port St. Lucie, Florida, United States of America
| | - Mohamed Rachid Boulassel
- Immunodeficiency Service and Division of Hematology, Royal Victoria Hospital, McGill University Health Centre, McGill University, Montreal, Quebec, Canada
| | - Cécile Tremblay
- Centre de Recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Hôpital St-Luc, Montreal, Quebec, Canada
- Laboratoire d'Immunologie, Département de Microbiologie et d'Immunologie, Université de Montreal, Montreal, Quebec, Canada
| | - Jean-Pierre Routy
- Immunodeficiency Service and Division of Hematology, Royal Victoria Hospital, McGill University Health Centre, McGill University, Montreal, Quebec, Canada
| | - Nicole Bernard
- Department of Experimental Medicine, McGill University, Montreal, Quebec, Canada
| | - Robert Balderas
- BD Biosciences, San Diego, California, United States of America
| | - Elias K. Haddad
- Centre de Recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Hôpital St-Luc, Montreal, Quebec, Canada
- Laboratoire d'Immunologie, Département de Microbiologie et d'Immunologie, Université de Montreal, Montreal, Quebec, Canada
- Vaccine & Gene Therapy Institute Florida, Port St. Lucie, Florida, United States of America
| | - Rafick-Pierre Sékaly
- Centre de Recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Hôpital St-Luc, Montreal, Quebec, Canada
- Laboratoire d'Immunologie, Département de Microbiologie et d'Immunologie, Université de Montreal, Montreal, Quebec, Canada
- Vaccine & Gene Therapy Institute Florida, Port St. Lucie, Florida, United States of America
- Department of Experimental Medicine, McGill University, Montreal, Quebec, Canada
- Department of Microbiology and Immunology, McGill University, Montreal, Quebec, Canada
- Institut National de la Santé et de la Recherche Médicale U743, CRCHUM, Université de Montreal, Montreal, Quebec, Canada
- * E-mail:
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Mirkou A, Suchovsky D, Gouraud A, Gillet A, Bernard N, Descotes J, Vial T. Pratiques de prescription des dérivés de l’ergot de seigle dans l’inhibition de la lactation en France. ACTA ACUST UNITED AC 2012; 41:167-73. [DOI: 10.1016/j.jgyn.2011.06.002] [Citation(s) in RCA: 5] [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] [Received: 01/19/2011] [Revised: 05/31/2011] [Accepted: 06/03/2011] [Indexed: 11/15/2022]
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Peix C, Vandenhende MA, Bonnet F, Lacoste D, Bernard N, Youssef J, Hessamfar M, Pometan JP, Morlat P. Adéquation entre les prescriptions antibiotiques et les recommandations dans un service de médecine interne : une démarche d’évaluation des pratiques professionnelles (EPP). Rev Med Interne 2011. [DOI: 10.1016/j.revmed.2011.10.080] [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: 10/15/2022]
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Rakotoarivelo RA, Labourré G, Wille H, Michaux C, Vandenhende MA, Lacoste D, Bernard N, Morlat P, Bonnet F. Réactions paradoxales sous antituberculeux chez des patients non infectés par le VIH : une difficulté diagnostique et thérapeutique. Rev Med Interne 2011. [DOI: 10.1016/j.revmed.2011.03.184] [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: 11/16/2022]
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Vandenhende M, Michaux C, Bentaberry F, Lacoste D, Bernard N, Morlat P, Bonnet F. Anakinra et syndrome de Schnitzler. Rev Med Interne 2010. [DOI: 10.1016/j.revmed.2010.10.182] [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: 11/16/2022]
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Labouré G, Wille H, Rakotoarivelo R, Michaux C, Vandenhende MA, Bernard N, Lacoste D, Milpied N, Morlat P, Bonnet F. Une LLC à se taper la tête…. Rev Med Interne 2010. [DOI: 10.1016/j.revmed.2010.10.313] [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: 10/18/2022]
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Meyer C, Bernard N, Moskura M, Toussaint ML, Denayer F, Gilbert D. Effects of urban particulate deposition on microbial communities living in bryophytes: an experimental study. Ecotoxicol Environ Saf 2010; 73:1776-1784. [PMID: 20674976 DOI: 10.1016/j.ecoenv.2010.07.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2010] [Revised: 05/10/2010] [Accepted: 07/12/2010] [Indexed: 05/29/2023]
Abstract
Our previous in situ study showed that bryophyte-microorganism complexes were affected by particulate atmospheric pollution. Here, the effect of urban particulate wet deposits on microbial communities living in bryophytes was studied under controlled conditions. An urban particulate solution was prepared with particles extracted from analyzer' filters and nebulized on bryophytes in treatments differing in frequency and quantity. The bryophytes did not accumulate metallic trace elements, which were present in very weak concentrations. However, in treated microcosms the total microbial biomass and the biomasses of cyanobacteria, active testate amoebae and fungi significantly decreased in response to the deposition of particles. These results confirm that microbial communities living in terrestrial bryophytes could be more sensitive indicators of atmospheric pollution than bryophytes. Moreover, they suggest that unicellular predators--such as testate amoebae--could be especially useful microbial indicators, since they seem to be both directly and indirectly affected by pollution.
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Affiliation(s)
- C Meyer
- Department of Chrono-Environment, UMR 6249, University of Franche-Comte, Place Leclerc F-25030 Besançon, France.
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Kiep K, Bernard N, Göcke Y, Hempel D, Krull R. Charakterisierung der Proteinproduktion des filamentösen Pilzes Aspergillus niger. CHEM-ING-TECH 2010. [DOI: 10.1002/cite.201050359] [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: 11/06/2022]
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Michaux C, Vandenhende MA, Bernard N, Lacoste D, Bonnet F, Morlat P. Une réaction paradoxale sous traitement antituberculeux. Rev Med Interne 2010. [DOI: 10.1016/j.revmed.2010.03.231] [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: 10/19/2022]
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Lacassie S, Michaux C, Pedeboscq S, Louis I, Vandenhende M, Roger-Schmeltz J, Bernard N, Mercie P, Hessamfar M, Bonnet F, Morlat P, Pometan JP. Impact de la non observance au ritonavir, utilisé comme « booster » des antiprotéases du VIH, sur la réponse virologique au traitement. Rev Med Interne 2009. [DOI: 10.1016/j.revmed.2009.10.293] [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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Geneviève M, Vandenhende MA, Bernard N, Michaux C, Combe C, Lacoste D, Bonnet F, Morlat P. Une néphropathie lupique liée à un DICV d’évolution favorable sous immunoglobulines intraveineuses. Rev Med Interne 2009. [DOI: 10.1016/j.revmed.2009.10.357] [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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41
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Vandenhende M, Loizeau C, Michaux C, Lacoste D, Bernard N, Papaioannou G, Bonnet F, Morlat P. Le foramen ovale perméable, une complication méconnue des cardiopathies carcinoïdes. Rev Med Interne 2009. [DOI: 10.1016/j.revmed.2009.03.276] [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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Vandenhende M, Michaux C, Lacoste D, Bernard N, Bonnet F, Maugein J, Morlat P. Un « lâcher de ballons » facilement curable : une nocardiose pulmonaire. Rev Med Interne 2009. [DOI: 10.1016/j.revmed.2009.03.330] [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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Foucher N, Lahille B, Bernard N, Poutrel S, Pedebosq S, Bonnet F, Morlat P, Pometan JP. Influence de l’hospitalisation sur la polymédication des sujets de plus de 60 ans. Rev Med Interne 2009; 30:20-4. [DOI: 10.1016/j.revmed.2008.05.024] [Citation(s) in RCA: 3] [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] [Received: 01/02/2008] [Revised: 05/13/2008] [Accepted: 05/26/2008] [Indexed: 01/25/2023]
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Kamya P, Boulet S, Tremblay C, Bernard N. T.12. Functional Potential of NK Cells from HIV Infected Slow Progressors Differs According to KIR/HLA Genotype. Clin Immunol 2009. [DOI: 10.1016/j.clim.2009.03.145] [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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Michaux C, Parrens M, Lacoste D, Bentaberry F, Pellegrin J, Bernard N, Neau D, Mercié P, de Mascarel A, Morlat P, Bonnet F. Maladie de Hodgkin et VIH, étude anatomopathologie et immunohistochimique. Rev Med Interne 2008. [DOI: 10.1016/j.revmed.2008.10.233] [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: 11/17/2022]
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Wang C, Wen T, Routy J, Bernard N, Sekaly R, Watts T. 4‐1BBL is a critical component in the costimulation dependent rescue of functionally impaired HIV‐specific CTL. FASEB J 2008. [DOI: 10.1096/fasebj.22.1_supplement.663.1] [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: 11/11/2022]
Affiliation(s)
- Chao Wang
- ImmunologyUniversity of TorontoTorontoCanada
| | - Tao Wen
- ImmunologyUniversity of TorontoTorontoCanada
| | - Jean‐Pierre Routy
- Royal Victoria HospitalMcGill University Health CenterMontrealCanada
| | - Nicole Bernard
- Research Institute of the McGill University Health CenterMontrealCanada
| | - Rafick Sekaly
- Departement de Microbiologie et ImmunologieUniversite de MontrealMontrealCanada
| | - Tania Watts
- ImmunologyUniversity of TorontoTorontoCanada
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Nguyen-Viet H, Bernard N, Mitchell EAD, Badot PM, Gilbert D. Effect of lead pollution on testate amoebae communities living in Sphagnum fallax: an experimental study. Ecotoxicol Environ Saf 2008; 69:130-8. [PMID: 17445890 DOI: 10.1016/j.ecoenv.2007.02.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2006] [Revised: 01/24/2007] [Accepted: 02/22/2007] [Indexed: 05/15/2023]
Abstract
We studied the effects of lead pollution on testate amoebae communities living on Sphagnum fallax by growing this moss under controlled conditions. A progressive series of lead (Pb) concentration was used in the growing solution of the mosses: 0 (control), 625 and 2,500 microgL(-1). The mosses were sampled and analysed for accumulated Pb and testate amoeba communities after 0, 6, 12, and 20 weeks. Species richness, total density and total biomass of testate amoebae declined in response to the Pb treatment and changed over time. The Pb x Time cross-effect was significant for species richness, and total density but not for the total biomass and Shannon diversity. Furthermore, the testate amoebae species richness and the total density were negatively correlated to the Pb concentrations actually accumulated in the moss at the end of the experiment. Species-specific responses of testate amoebae to Pb pollution were identified. Our results thus confirm the sensitivity of testate amoebae to lead pollution.
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Affiliation(s)
- H Nguyen-Viet
- Laboratory of Environmental Biology, USC INRA, EA 3184, University of Franche-Comté, Place Leclerc F-25030 Besançon, France.
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Boulet S, Kleyman M, Kamya P, Kim J, Sharafi S, Simic N, Bruneau J, Routy JP, Tsoukas C, Bernard N. Su.6. KIR3DS/L1 Alleles and Reduced Risk of HIV Infection in Exposed Persistently Seronegative Subjects. Clin Immunol 2008. [DOI: 10.1016/j.clim.2008.03.357] [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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Nguyen-Viet H, Gilbert D, Mitchell EAD, Badot PM, Bernard N. Effects of experimental lead pollution on the microbial communities associated with Sphagnum fallax (Bryophyta). Microb Ecol 2007; 54:232-41. [PMID: 17345137 DOI: 10.1007/s00248-006-9192-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2006] [Revised: 11/19/2006] [Accepted: 12/11/2006] [Indexed: 05/14/2023]
Abstract
Ecotoxicological studies usually focus on single microbial species under controlled conditions. As a result, little is known about the responses of different microbial functional groups or individual species to stresses. In an aim to assess the response of complex microbial communities to pollution in their natural habitat, we studied the effect of a simulated lead pollution on the microbial community (bacteria, cyanobacteria, protists, fungi, and micrometazoa) living on Sphagnum fallax. Mosses were grown in the laboratory with 0 (control), 625, and 2,500 microg L(-1) of Pb(2+) diluted in a standard nutrient solution and were sampled after 0, 6, 12, and 20 weeks. The biomasses of bacteria, microalgae, testate amoebae, and ciliates were dramatically and significantly decreased in both Pb addition treatments after 6, 12, and 20 weeks in comparison with the control. The biomass of cyanobacteria declined after 6 and 12 weeks in the highest Pb treatment. The biomasses of fungi, rotifers, and nematodes decreased along the duration of the experiment but were not significantly affected by lead addition. Consequently, the total microbial biomass was lower for both Pb addition treatments after 12 and 20 weeks than in the controls. The community structure was strongly modified due to changes in the densities of testate amoebae and ciliates, whereas the relative contribution of bacteria to the microbial biomass was stable. Differences in responses among the microbial groups suggest changes in the trophic links among them. The correlation between the biomass of bacteria and that of ciliates or testate amoebae increased with increasing Pb loading. We interpret this result as an effect on the grazing pathways of these predators and by the Pb effect on other potential prey (i.e., smaller protists). The community approach used here complements classical ecotoxicological studies by providing clues to the complex effect of pollutant-affecting organisms both directly and indirectly through trophic effects and could potentially find applications for pollution monitoring.
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Affiliation(s)
- H Nguyen-Viet
- Laboratory of Environmental Biology, USC INRA, EA 3184, University of Franche-Comté, Place Leclerc 25030, Besançon, France.
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Foucher N, Pertusa MC, Lahille B, Bernard N, Louis I, Bonarek M, Morlat P, Pometan JP. [Incidence and reasons of premature discontinuation of abacavir: results of a hospital investigation among 628 patients]. Med Mal Infect 2007; 37:684-7. [PMID: 17662547 DOI: 10.1016/j.medmal.2007.05.004] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2007] [Accepted: 05/29/2007] [Indexed: 10/23/2022]
Abstract
OBJECTIVE The aim of this study was to determine the incidence of abacavir discontinuation within the first two months of treatment and the link with a true hypersensitivity reaction (HSR). PATIENTS AND METHODS A retrospective study was made between January 1998 and January 2006 on a cohort of HIV positive patients treated by abacavir delivered by the Bordeaux Saint-André University Hospital pharmacy. RESULTS Six hundred (and) twenty-eight patients were included. The reasons for non-renewal of abacavir prescription within the first three months of treatment were investigated. Early discontinuation for adverse effects was reported in 32 patients (5.1%): proved diagnosis of HSR (N=10), uncertain diagnosis of HSR (N=8), and no HSR (N=14). The decision for discontinuation was taken by physician after consultation in 76% of cases.
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Affiliation(s)
- N Foucher
- Service de pharmacie, hôpital Saint-André, CHU de Bordeaux, 33000 Bordeaux, France.
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