Search

Your search keyword '"Kouyos, RD"' showing total 8 results
Start Over Author "Kouyos, RD" Topic hiv
8 results on '"Kouyos, RD"'

1. Antibacterial effects of antiretrovirals, potential implications for microbiome studies in HIV.

Author

Shilaih M, Angst DC, Marzel A, Bonhoeffer S, Günthard HF, and Kouyos RD

Subjects
Escherichia coli drug effects, Humans, Microbial Sensitivity Tests, Viral Load, Anti-Bacterial Agents pharmacology, Anti-Retroviral Agents pharmacology, HIV drug effects, HIV Infections microbiology, HIV Infections virology, Microbiota drug effects
Abstract

Background: Despite being used by more than 18 million people our understanding of the extent of the effects of antiretrovirals on the human body and other organisms remains incomplete. In addition, the direct effect of antiretrovirals on the gut microbiota of HIV-infected individuals has been largely overlooked in microbiome studies concerned with HIV-infected individuals., Methods: Here we tested 25 antiretrovirals on Bacillus subtilis and Escherichia coli using a broth microdilution assay to assess whether these drugs have an antibacterial effect., Results: We found that several widely used antiretroviral drugs have in vitro antibacterial activity against both gram-positive and gram-negative commensal bacteria. Efavirenz inhibited the growth of B. subtilis with a minimum inhibitory concentration (MIC) of 16 µg/ml (in all three replicates), while 2',3'-dideoxyinosine and zidovudine inhibited the growth of E. coli with an MIC of 16-32 µg/ml and 0.016-0.125 µg/ml (respectively)., Conclusions: Given the large and increasing number of individuals on antiretrovirals, and the lifelong nature of HIV treatment, this proof-of-concept report could have several potential implications, including an impact of antiretrovirals on bacterial coinfections, as well as potentials for drug discovery and repositioning.

Published
2018
Full Text
View/download PDF

2. Successful Prevention of Transmission of Integrase Resistance in the Swiss HIV Cohort Study.

Author

Scherrer AU, Yang WL, Kouyos RD, Böni J, Yerly S, Klimkait T, Aubert V, Cavassini M, Battegay M, Hauser C, Calmy A, Schmid P, Bernasconi E, and Günthard HF

Subjects
Cohort Studies, Drug Utilization, HIV isolation & purification, HIV Infections drug therapy, HIV Infections epidemiology, HIV Infections virology, HIV Integrase Inhibitors therapeutic use, Humans, Prevalence, Switzerland epidemiology, Anti-HIV Agents pharmacology, Disease Transmission, Infectious, Drug Resistance, Viral, HIV drug effects, HIV genetics, HIV Infections transmission, HIV Integrase genetics
Abstract

The prevalence of integrase strand transfer inhibitor (INSTI)-transmitted drug resistance (TDR) may increase with the increasing use of INSTIs. We analyzed the prevalence of INSTI TDR in the Swiss HIV Cohort Study (2008-2014). In 1 of 1316 drug-naive samples (0.1%), a major INSTI TDR mutation was detected. Prevalence was stable, although INSTIs were increasingly used. We showed that this is in contrast to the introduction of previous drug classes, in which more treatment failures with resistant strains occurred and TDR was observed more rapidly. We demonstrated on a population-level that it is possible to avoid TDR to a new drug class for years., (© The Author 2016. Published by Oxford University Press for the Infectious Diseases Society of America. All rights reserved. For permissions, e-mail journals.permissions@oup.com.)

Published
2016
Full Text
View/download PDF

3. The role of recombination for the coevolutionary dynamics of HIV and the immune response.

Author

Mostowy R, Kouyos RD, Fouchet D, and Bonhoeffer S

Subjects
Antigenic Variation genetics, Antigenic Variation immunology, Antigenic Variation physiology, Computer Simulation, Genetic Variation immunology, HIV Infections genetics, HIV Infections virology, Humans, Immune Evasion genetics, Models, Biological, Models, Theoretical, Mutation physiology, Time Factors, Adaptive Immunity genetics, Evolution, Molecular, HIV genetics, HIV immunology, HIV Infections immunology, Recombination, Genetic physiology
Abstract

The evolutionary implications of recombination in HIV remain not fully understood. A plausible effect could be an enhancement of immune escape from cytotoxic T lymphocytes (CTLs). In order to test this hypothesis, we constructed a population dynamic model of immune escape in HIV and examined the viral-immune dynamics with and without recombination. Our model shows that recombination (i) increases the genetic diversity of the viral population, (ii) accelerates the emergence of escape mutations with and without compensatory mutations, and (iii) accelerates the acquisition of immune escape mutations in the early stage of viral infection. We see a particularly strong impact of recombination in systems with broad, non-immunodominant CTL responses. Overall, our study argues for the importance of recombination in HIV in allowing the virus to adapt to changing selective pressures as imposed by the immune system and shows that the effect of recombination depends on the immunodominance pattern of effector T cell responses.

Published
2011
Full Text
View/download PDF

4. Recombination and drug resistance in HIV: population dynamics and stochasticity.

Author

Kouyos RD, Fouchet D, and Bonhoeffer S

Subjects
Evolution, Molecular, Genotype, Humans, Models, Genetic, Mutation genetics, Population Dynamics, Recombination, Genetic, Stochastic Processes, Drug Resistance, Viral genetics, HIV drug effects, HIV genetics, HIV Infections drug therapy, HIV Infections virology
Abstract

Recombination has been conjectured to play an important role for the evolution of drug resistance in HIV. In theoretical models it has been shown that recombination can have both an accelerating and a decelerating effect on the evolution of drug-resistance. Whether the models predict an accelerating or decelerating effect, depends on the specific assumptions. In particular, previous models have shown that both stochastic and population dynamic effects are likely to affect the expected impact of recombination. Here, we investigate the effect of recombination in a model that combines stochasticity with population dynamics. This approach allows assessing the effect of recombination not only on the time to resistance but also on the probability that the virus evolves resistance at all. Previous models had to neglect this latter aspect, because they assumed by construction that the virus always adapts successfully. We find that recombination hardly affects the probability that resistance evolves at all. Furthermore, our results show that recombination decelerates in most cases the emergence of drug resistance. These results contrast previous population genetic studies, which argued that, in a stochastic regime, recombination is expected to accelerate the evolution of drug resistance. The results also highlight that population dynamic effects can strongly influence the population genetics of recombination.

Published
2009
Full Text
View/download PDF

5. Using longitudinally sampled viral nucleotide sequences to characterize the drivers of HIV‐1 transmission.

Author

Reichmuth, ML, Chaudron, SE, Bachmann, N, Nguyen, H, Böni, J, Metzner, KJ, Perreau, M, Klimkait, T, Yerly, S, Hirsch, HH, Hauser, C, Ramette, A, Vernazza, P, Cavassini, M, Bernasconi, E, Günthard, HF, Kusejko, K, and Kouyos, RD

Subjects
HIV infections, SEQUENCE analysis, CONFIDENCE intervals, VIRAL load, SYPHILIS, ANTIRETROVIRAL agents, NUCLEOTIDES, INFECTIOUS disease transmission, VIROLOGY, ODDS ratio, MOLECULAR epidemiology, HIV, LONGITUDINAL method
Abstract

Objectives: Understanding the drivers of HIV‐1 transmission is of importance for curbing the ongoing epidemic. Phylogenetic methods based on single viral sequences allow us to assess whether two individuals are part of the same viral outbreak, but cannot on their own assess who potentially transmitted the virus. We developed and assessed a molecular epidemiology method with the main aim to screen cohort studies for and to characterize individuals who are 'potential HIV‐1 transmitters', in order to understand the drivers of HIV‐1 transmission. Methods: We developed and validated a molecular epidemiology approach using longitudinally sampled viral Sanger sequences to characterize potential HIV‐1 transmitters in the Swiss HIV Cohort Study. Results: Our method was able to identify 279 potential HIV‐1 transmitters and allowed us to determine the main epidemiological and virological drivers of transmission. We found that the directionality of transmission was consistent with infection times for 72.9% of 85 potential HIV‐1 transmissions with accurate infection date estimates. Being a potential HIV‐1 transmitter was associated with risk factors including viral load [adjusted odds ratiomultivariable (95% confidence interval): 1.86 (1.49–2.32)], syphilis coinfection [1.52 (1.06–2.19)], and recreational drug use [1.45 (1.06–1.98)]. By contrast for the potential HIV‐1 recipients, this association was weaker or even absent [1.18 (0.82–1.72), 0.89 (0.52–1.55) and 1.53 (0.98–2.39), respectively], indicating that inferred directionality of transmission is useful at the population level. Conclusions: Our results indicate that longitudinally sampled Sanger sequences do not provide sufficient information to identify transmitters with high certainty at the individual level, but that they allow the drivers of transmission at the population level to be characterized. [ABSTRACT FROM AUTHOR]

Published
2021
Full Text
View/download PDF

6. Gender differences in the use of cardiovascular interventions in HIV-positive persons; the D:A:D study

Author

Hatleberg, Ci, Ryom, L, El-Sadr, W, Mocroft, A, Reiss, P, De Wit, S, Dabis, F, Pradier, C, d'Arminio Monforte, A, Kovari, H, Law, M, Lundgren, Jd, Sabin, Ca, Data Collection of Adverse Events of Anti-HIV drugs (D:A:D) Study group, Calvo, G, Bonnet, F, Kirk, O, Morfeldt, L, Weber, R, Lind-Thomsen, A, Salbøl Brandt, R, Hillebreght, M, Zaheri, S, Wit, F, Scherrer, A, Schöni-Affolter, F, Rickenbach, M, Tavelli, A, Fanti, I, Leleux, O, Mourali, J, Le Marec, F, Boerg, E, Thulin, E, Sundström, A, Bartsch, G, Thompsen, G, Necsoi, C, Delforge, M, Fontas, E, Caissotti, C, Mateu, S, Torres, F, Petoumenos, K, Blance, A, Huang, R, Puhr, R, Laut, K, Kristensen, D, Phillips, An, Kamara, Da, Smith, Cj, Brandt, Rs, Raben, D, Matthews, C, Bojesen, A, Grevsen, Al, Powderly, B, Shortman, N, Moecklinghoff, C, Reilly, G, Franquet, X, Smit, C, Ross, M, Fux, Ca, Morlat, P, Friis-Møller, N, Kowalska, J, Bohlius, J, Bower, M, Fätkenheuer, G, Grulich, A, Sjøl, A, Meidahl, P, Iversen, Js, Hillebregt, M, Prins, Jm, Kuijpers, Tw, Scherpbier, Hj, van der Meer, J, Godfried, Mh, van der Poll, T, Nellen, F, Geerlings, Se, van Vugt, M, Pajkrt, D, Bos, Jc, Wiersinga, Wj, van der Valk, M, Goorhuis, A, Hovius, Jw, van Eden, J, Henderiks, A, van Hes, A, Mutschelknauss, M, Nobel, He, Pijnappel, F, Jurriaans, S, Back, N, Zaaijer, Hl, Berkhout, B, Cornelissen, M, Schinkel, Cj, Thomas, Xv, De Ruyter Ziekenhuis, A, van den Berge, M, Stegeman, A, Baas, S, Hage de Looff, L, Ziekenhuis, C, Pronk, M, Ammerlaan, H, de Munnik, E, Tjhie, J, Wegdam, M, Deiman, B, Scharnhorst, V, Weijsenfeld, Am, van der Ende ME, van Gorp, E, Schurink, C, Nouwen, Jl, Verbon, A, Rijnders, B, Bax, Hi, van der Feltz, M, van der Bassant, N, van Beek, J, Vriesde, M, van Zonneveld LM, de Oude-Lubbers, A, van den Berg-Cameron HJ, Bruinsma-Broekman, Fb, de Groot, J, de Zeeuw-de Man, M, Boucher, C, Koopmans, M, van Kampen, J, Pas, Sd, Driessen, G, van Rossum, A, van der Knaap LC, Flevoziekenhuis, E, Branger, J, Rijkeboer-Mes, A, Schippers, Ef, van IJperen JM, Geilings, J, van der Hut, G, Franck, P, van Eeden, A, Brokking, W, Groot, M, Elsenburg, L, Damen, M, Isala, Is, Groeneveld, P, Bouwhuis, Jw, den Berg JF, van Hulzen, A, van der Bliek GL, Bor, P, Bloembergen, P, Wolfhagen, M, Ruijs, G, Kroon, Fp, de Boer, M, Bauer, Mp, Jolink, H, Vollaard, Am, Dorama, W, van Holten, N, Claas, E, Wessels, E, den Hollander JG, Pogany, K, Roukens, A, Kastelijns, M, Smit, Jv, Smit, E, Struik-Kalkman, D, Tearno, C, Bezemer, M, van Niekerk, T, Pontesilli, O, Lowe, Sh, Oude Lashof, A, Posthouwer, D, Ackens, Rp, Schippers, J, Vergoossen, R, Weijenberg-Maes, B, van Loo, I, Havenith, T, Leyten, E, Gelinck, L, van Hartingsveld, A, Meerkerk, C, Wildenbeest, Gs, Mutsaers, J, Jansen, Cl, Mulder, Jw, Vrouenraets, S, Lauw, Fn, van Broekhuizen MC, Paap, H, Vlasblom, Dj, Smits, P, Weijer, S, El Moussaoui, R, Bosma, As, van Vonderen, M, van Houte, D, Kampschreur, Lm, Dijkstra, K, Faber, S, Weel, J, Kootstra, Gj, Delsing, Ce, van der Burg-van de Plas, M, Heins, H, Lucas, E, Kortmann, W, van Twillert, G, Cohen Stuart, J, Diederen, B, Pronk, D, van Truijen-Oud FA, van der Reijden WA, Jansen, R, Brinkman, K, den Berk, G, Blok, Wl, Frissen, P, Lettinga, Kd, Schouten, W, Veenstra, J, Brouwer, Cj, Geerders, Gf, Hoeksema, K, Kleene, Mj, van der Meché IB, Spelbrink, M, Sulman, H, Toonen, A, Wijnands, S, Kwa, D, Witte, E, Koopmans, Pp, Keuter, M, van der Ven, A, Ter Hofstede, H, Dofferhoff, A, van Crevel, R, Albers, M, Bosch, M, Grintjes-Huisman, K, Zomer, Bj, Stelma, Ff, Rahamat-Langendoen, J, Burger, D, Richter, C, Gisolf, Eh, Hassing, Rj, Ter Beest, G, van Bentum, P, Langebeek, N, Tiemessen, R, Swanink, C, van Lelyveld, S, Soetekouw, R, Hulshoff, N, van der Prijt, L, van der Swaluw, J, Bermon, N, Herpers, Bl, Veenendaal, D, Verhagen, D, van Wijk, M, Brouwer, Ae, Kuipers, M, Santegoets, R, van der Ven, B, Marcelis, Jh, Buiting, A, Kabel, Pj, Bierman, W, Scholvinck, H, Wilting, Kr, Stienstra, Y, van der Meulen PA, de Weerd DA, Ludwig-Roukema, J, Niesters, H, Riezebos-Brilman, A, van Leer-Buter CC, Knoester, M, Hoepelman, A, Mudrikova, T, Ellerbroek, Pm, Oosterheert, Jj, Arends, Je, Barth, Re, Wassenberg, M, Schadd, Em, van Elst-Laurijssen, D, van Oers-Hazelzet, E, Vervoort, S, van Berkel, M, Schuurman, R, Verduyn-Lunel, F, Wensing, A, Peters, E, van Agtmael MA, Bomers, M, de Vocht, J, Heitmuller, M, Laan, Lm, Pettersson, Am, Ang, Cw, Geelen, S, Wolfs, T, Bont, Lj, Bezemer, Do, van Sighem AI, Boender, Ts, de Jong, A, Bergsma, D, Hoekstra, P, de Lang, A, Grivell, S, Jansen, A, Rademaker, Mj, Raethke, M, Meijering, R, Schnörr, S, de Groot, L, van den Akker, M, Bakker, Y, Claessen, E, El Berkaoui, A, Koops, J, Kruijne, E, Lodewijk, C, Munjishvili, L, Peeck, B, Ree, C, Regtop, R, Ruijs, Y, Rutkens, T, van de Sande, L, Schoorl, M, Timmerman, A, Tuijn, E, Veenenberg, L, van der Vliet, S, Wisse, A, Woudstra, T, Tuk, B, Dupon, M, Gaborieau, V, Lacoste, D, Malvy, D, Mercié, P, Neau, D, Pellegrin, Jl, Tchamgoué, S, Lazaro, E, Cazanave, C, Vandenhende, M, Vareil, Mo, Gérard, Y, Blanco, P, Bouchet, S, Breilh, D, Fleury, H, Pellegrin, I, Chêne, G, Thiébaut, R, Wittkop, L, Lawson-Ayayi, S, Gimbert, A, Desjardin, S, Lacaze-Buzy, L, Petrov-Sanchez, V, André, K, Bernard, N, Caubet, O, Caunegre, L, Chossat, I, Courtault, C, Dauchy, Fa, Dondia, D, Duffau, P, Dutronc, H, Farbos, S, Faure, I, Ferrand, H, Gerard, Y, Greib, C, Hessamfar, M, Imbert, Y, Lataste, P, Marie, J, Mechain, M, Monlun, E, Ochoa, A, Pistone, T, Raymond, I, Receveur, Mc, Rispal, P, Sorin, L, Valette, C, Vandenhende, Ma, Viallard, Jf, Wille, H, Wirth, G, Lafon, Me, Trimoulet, P, Bellecave, P, Tumiotto, C, Haramburu, F, Miremeont-Salamé, G, Blaizeau, Mj, Decoin, M, Hannapier, C, Pougetoux, Elea, Delveaux, S, D'Ivernois, C, Diarra, F, Uwamaliya-Nziyumvira, B, Palmer, G, Conte, V, Sapparrart, V, Moore, R, Edwards, S, Hoy, J, Watson, K, Roth, N, Lau, H, Bloch, M, Baker, D, Carr, A, Cooper, D, O'Sullivan, M, Nolan, D, Guelfi, G, Domingo, P, Sambeat, Ma, Gatell, J, Del Cacho, E, Cadafalch, J, Fuster, M, Codina, C, Sirera, G, Vaqué, A, Clumeck, N, Gennotte, Af, Gerard, M, Kabeya, K, Konopnicki, D, Libois, A, Martin, C, Payen, Mc, Semaille, P, Van Laethem, Y, Neaton, J, Krum, E, Thompson, G, Luskin-Hawk, R, Telzak, E, Abrams, Di, Cohn, D, Markowitz, N, Arduino, R, Mushatt, D, Friedland, G, Perez, G, Tedaldi, E, Fisher, E, Gordin, F, Crane, Lr, Sampson, J, Baxter, J, Gazzard, B, Horban, A, Karpov, I, Losso, M, Pedersen, C, Ristola, M, Phillips, A, Rockstroh, J, Peters, L, Fischer, Ah, Grønborg Laut, K, Larsen, Jf, Podlekareva, D, Cozzi-Lepri, A, Shepherd, L, Schultze, A, Amele, S, Kundro, M, Schmied, B, Vassilenko, A, Mitsura, Vm, Paduto, D, Florence, E, Vandekerckhove, L, Hadziosmanovic, V, Begovac, J, Machala, L, Jilich, D, Kronborg, G, Benfield, T, Gerstoft, J, Katzenstein, T, Møller, Nf, Ostergaard, L, Wiese, L, Nielsen, Ln, Zilmer, K, Aho, I, Viard, Jp, Girard, Pm, Duvivier, C, Degen, O, Stellbrink, Hj, Stefan, C, Bogner, J, Chkhartishvili, N, Gargalianos, P, Szlávik, J, Gottfredsson, M, Mulcahy, F, Yust, I, Turner, D, Burke, M, Shahar, E, Hassoun, G, Elinav, H, Haouzi, M, Elbirt, D, Sthoeger, Zm, Esposito, R, Mazeu, I, Mussini, C, Mazzotta, F, Gabbuti, A, Vullo, V, Lichtner, M, Zaccarelli, M, Antinori, A, Acinapura, R, Plazzi, M, Lazzarin, A, Castagna, A, Gianotti, N, Galli, M, Ridolfo, A, Rozentale, B, Uzdaviniene, V, Staub, T, Ormaasen, V, Maeland, A, Bruun, J, Knysz, B, Gasiorowski, J, Inglot, M, Bakowska, E, Flisiak, R, Grzeszczuk, A, Parczewski, M, Maciejewska, K, Aksak-Was, B, Beniowski, M, Mularska, E, Smiatacz, T, Gensing, M, Jablonowska, E, Malolepsza, E, Wojcik, K, Mozer-Lisewska, I, Caldeira, L, Radoi, R, Panteleev, A, Yakovlev, A, Trofimora, T, Khromova, I, Kuzovatova, E, Borodulina, E, Vdoushkina, E, Jevtovic, D, Tomazic, J, Gatell, Jm, Miró, Jm, Moreno, S, Rodriguez, Jm, Clotet, B, Jou, A, Paredes, R, Tural, C, Puig, J, Bravo, I, Gutierrez, M, Mateo, G, Laporte, Jm, Falconer, K, Thalme, A, Sonnerborg, A, Blaxhult, A, Flamholc, L, Cavassini, M, Calmy, A, Furrer, H, Schmid, P, Kuznetsova, A, Kyselyova, G, Sluzhynska, M, Johnson, Am, Simons, E, Johnson, Ma, Orkin, C, Weber, J, Scullard, G, Clarke, A, Leen, C, Thulin, G, Åkerlund, B, Koppel, K, Karlsson, A, Håkangård, C, Castelli, F, Cauda, R, Di Perri, G, Iardino, R, Ippolito, G, Marchetti, Gc, Perno, Cf, von Schloesser, F, Viale, P, Ceccherini-Silberstein, F, Girardi, E, Lo Caputo, S, Puoti, M, Andreoni, M, Ammassari, A, Balotta, C, Bandera, A, Bonfanti, P, Bonora, S, Borderi, M, Calcagno, A, Calza, L, Capobianchi, Mr, Cingolani, A, Cinque, P, De Luca, A, Di Biagio, A, Gori, A, Guaraldi, G, Lapadula, G, Madeddu, G, Maggiolo, F, Marchetti, G, Marcotullio, S, Monno, L, Nozza, S, Quiros Roldan, E, Rossotti, R, Rusconi, S, Santoro, Mm, Saracino, A, Galli, L, Lorenzini, P, Rodano, A, Shanyinde, M, Carletti, F, Carrara, S, Di Caro, A, Graziano, S, Petrone, F, Prota, G, Quartu, S, Truffa, S, Giacometti, A, Costantini, A, Barocci, V, Angarano, G, Santoro, C, Suardi, C, Donati, V, Verucchi, G, Minardi, C, Quirino, T, Abeli, C, Manconi, Pe, Piano, P, Cacopardo, B, Celesia, B, Vecchiet, J, Falasca, K, Pan, A, Lorenzotti, S, Sighinolfi, L, Segala, D, Vichi, F, Cassola, G, Viscoli, C, Alessandrini, A, Bobbio, N, Mazzarello, G, Mastroianni, C, Belvisi, V, Caramma, I, Chiodera, A, Milini, P, Rizzardini, G, Moioli, Mc, Piolini, R, Ridolfo, Al, Salpietro, S, Tincati, C, Puzzolante, C, Abrescia, N, Chirianni, A, Borgia, G, Orlando, R, Bonadies, G, Di Martino, F, Gentile, I, Maddaloni, L, Cattelan, Am, Marinello, S, Cascio, A, Colomba, C, Baldelli, F, Schiaroli, E, Parruti, G, Sozio, F, Magnani, G, Ursitti, Ma, Cristaudo, A, Baldin, G, Capozzi, M, Cicalini, S, Fontanelli Sulekova, L, Iaiani, G, Latini, A, Mastrorosa, I, Plazzi, Mm, Savinelli, S, Vergori, A, Cecchetto, M, Viviani, F, Bagella, P, Rossetti, B, Franco, A, Fontana Del Vecchio, R, Francisci, D, Di Giuli, C, Caramello, P, Orofino, Gc, Sciandra, M, Bassetti, M, Londero, A, Pellizzer, G, Manfrin, V, Starnini, G, Ialungo, A, Dollet, K, Dellamonica, P, Bernard, E, Courjon, J, Cua, E, De Salvador-Guillouet, F, Durant, J, Etienne, C, Ferrando, S, Mondain-Miton, V, Naqvi, A, Perbost, I, Pillet, S, Prouvost-Keller, B, Pugliese, P, Rio, V, Risso, K, Roger, Pm, Aubert, V, Battegay, M, Bernasconi, E, Böni, J, Braun, Dl, Bucher, H, Ciuffi, A, Dollenmaier, G, Egger, M, Elzi, L, Fehr, J, Fellay, J, Günthard, Hf, Haerry, D, Hasse, B, Hirsch, Hh, Hoffmann, M, Hösli, I, Kahlert, C, Kaiser, L, Keiser, O, Klimkait, T, Kouyos, Rd, Ledergerber, B, Martinetti, G, Martinez de Tejada, B, Marzolini, C, Metzner, Kj, Müller, N, Nicca, D, Pantaleo, G, Paioni, P, Rauch, A, Rudin, C, Scherrer, Au, Speck, R, Stöckle, M, Tarr, P, Trkola, A, Vernazza, P, Wandeler, G, Yerly, S., Infectious diseases, AII - Infectious diseases, APH - Aging & Later Life, Global Health, Paediatric Infectious Diseases / Rheumatology / Immunology, AII - Inflammatory diseases, AII - Amsterdam institute for Infection and Immunity, General Internal Medicine, APH - Quality of Care, Graduate School, Center of Experimental and Molecular Medicine, Medical Microbiology and Infection Prevention, Gastroenterology and Hepatology, ARD - Amsterdam Reproduction and Development, Hatleberg, Camilla I, Ryom, Lene, El-Sadr, Wafaa, Mocroft, Amanda, Reiss, Peter, De Wit, Stephane, Dabis, Francoi, Pradier, Christian, d'Arminio Monforte, Antonella, Kovari, Helen, Law, Matthew, Lundgren, Jens D, Sabin, Caroline A, Dad, Study, Castagna, A, Infektiosairauksien yksikkö, Department of Medicine, Clinicum, HUS Inflammation Center, HUS Internal Medicine and Rehabilitation, MUMC+: DA MMI AIOS (9), MUMC+: DA MMI Infectieserologie (9), Med Microbiol, Infect Dis & Infect Prev, MUMC+: DA MMI Staf (9), RS: FHML non-thematic output, and University of Zurich

Subjects
Male, Cardiovascular disease, gender, cardiovascular disease interventions, cohort studies, HIV, women, myocardial infarction, stroke, Heart disease, Psychological intervention, lnfectious Diseases and Global Health Radboud Institute for Molecular Life Sciences [Radboudumc 4], 030204 cardiovascular system & hematology, Santé publique, ACUTE CORONARY SYNDROME, 10234 Clinic for Infectious Diseases, Cohort Studies, 0302 clinical medicine, Risk Factors, HIV Seropositivity, Medicine and Health Sciences, IN-HOSPITAL MORTALITY, 030212 general & internal medicine, Pathologie maladies infectieuses, Stroke, Research Articles, PRESENTATION, GENERAL-POPULATION, INFECTED PATIENTS, Sex Characteristics, Confounding, Middle Aged, 3. Good health, Infectious Diseases, Cardiovascular Diseases, Cardiovascular disease interventions, Cohort studies, Gender, Hiv, Myocardial infarction, Women, symbols, Female, Cohort study, Research Article, Adult, medicine.medical_specialty, Acute coronary syndrome, ACUTE MYOCARDIAL-INFARCTION, SEX-DIFFERENCES, SYMPTOM PRESENTATION, education, 610 Medicine & health, HEART-DISEASE, NO, INFECTED, 03 medical and health sciences, symbols.namesake, Internal medicine, cardiovascular disease intervention, PATIENTS, medicine, Humans, SYMPTOM, Poisson regression, IN-HOSPITAL, business.industry, MORTALITY, CLINICAL PRESENTATION, Public Health, Environmental and Occupational Health, 2739 Public Health, Environmental and Occupational Health, 2725 Infectious Diseases, medicine.disease, lnfectious Diseases and Global Health Radboud Institute for Health Sciences [Radboudumc 4], 10036 Medical Clinic, 3121 General medicine, internal medicine and other clinical medicine, RISK-FACTORS, Observational study, business, cohort studie
Abstract

There is paucity of data related to potential gender differences in the use of interventions to prevent and treat cardiovascular disease (CVD) among HIV-positive individuals. We investigated whether such differences exist in the observational D:A:D cohort study. Methods: Participants were followed from study enrolment until the earliest of death, six months after last visit or February 1, 2015. Initiation of CVD interventions [lipid-lowering drugs (LLDs), angiotensin-converting enzyme inhibitors (ACEIs), anti-hypertensives, invasive cardiovascular procedures (ICPs) were investigated and Poisson regression models calculated whether rates were lower among women than men, adjusting for potential confounders. Results: Women (n = 12,955) were generally at lower CVD risk than men (n = 36,094). Overall, initiation rates of CVD interventions were lower in women than men; LLDs: incidence rate 1.28 [1.21, 1.35] vs. 2.40 [2.34, 2.46]; ACEIs: 0.88 [0.82, 0.93] vs. 1.43 [1.39, 1.48]; anti-hypertensives: 1.40 [1.33, 1.47] vs. 1.72 [1.68, 1.77] and ICPs: 0.08 [0.06, 0.10] vs. 0.30 [0.28, 0.32], and this was also true for most CVD interventions when exclusively considering periods of follow-up for which individuals were at high CVD risk. In fully adjusted models, women were less likely to receive CVD interventions than men (LLDs: relative rate 0.83 [0.78, 0.88]; ACEIs: 0.93 [0.86, 1.01]; ICPs: 0.54 [0.43, 0.68]), except for the receipt of anti-hypertensives (1.17 [1.10, 1.25]). Conclusion: The use of most CVD interventions was lower among women than men. Interventions are needed to ensure that all HIV-positive persons, particularly women, are appropriately monitored for CVD and, if required, receive appropriate CVD interventions., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
2018
Full Text
View/download PDF

7. Chemsex drugs on the rise: a longitudinal analysis of the Swiss HIV Cohort Study from 2007 to 2017.

Author

Hampel, B, Kusejko, K, Kouyos, RD, Böni, J, Flepp, M, Stöckle, M, Conen, A, Béguelin, C, Künzler‐Heule, P, Nicca, D, Schmidt, AJ, Nguyen, H, Delaloye, J, Rougemont, M, Bernasconi, E, Rauch, A, Günthard, HF, Braun, DL, Fehr, J, and Anagnostopoulos, A.

Subjects
SYPHILIS epidemiology, RISK assessment, HETEROCYCLIC compounds, COCAINE, SEXUAL partners, RISK-taking behavior, METHAMPHETAMINE, ECSTASY (Drug), AMPHETAMINES, DISEASE prevalence, UNSAFE sex, MEN who have sex with men, LONGITUDINAL method, HEROIN, SOCIAL skills, CANNABIS (Genus), DRUGS, HEPATITIS C, DRUGS of abuse, AMYL nitrite, MENTAL depression
Abstract

Objectives: Chemsex refers to the use of sex‐enhancing drugs among men who have sex with men (MSM) in combination with specific sexual and social behaviours. Longitudinal data on this development and the associated health risks are scarce. Methods: Data on all recreational drugs reported in the Swiss HIV Cohort Study (SHCS) from 2007 to 2017 were collected. Drug use was analysed longitudinally for all drug classes. In addition, potential associations between patient characteristics and the consumption of methamphetamine, γ‐hydroxybutric acid/γ‐butyrolactone (GHB/GBL), 3,4‐methylenedioxymethamphetamine (MDMA/XTC), cocaine and amphetamine were analysed. Results: We analysed 166 167 follow‐up entries for 12 527 SHCS participants, including 7101 free text field entries containing information about recreational drugs other than cannabis, cocaine and heroin. Overall, we observed a stable percentage (9.0%) of recreational drug use (excluding cannabis, amyl nitrite and prescription drugs). For MSM, however, there was an increase in overall drug use from 8.8% in 2007 to 13.8% in 2017, with particularly large increases for methamphetamine (from 0.2 to 2.4%; P < 0.001) and GHB/GBL (from 1.0 to 3.4%; P < 0.001). The use of each of the potentially sex‐enhancing drugs methamphetamine, GHB/GBL, cocaine, XTC/MDMA and amphetamine was significantly associated with condomless sex with nonsteady partners, and higher prevalences of depression, syphilis and hepatitis C. Conclusions: The significant increase in the use of chemsex drugs among MSM in the SHCS and the strong association with coinfections and depression highlights the need for harm reduction programmes tailored to MSM. According to our results, improving knowledge about recreational drugs is important for all health care professionals working with people living with HIV. [ABSTRACT FROM AUTHOR]

Published
2020
Full Text
View/download PDF

8. Mining for pairs: shared clinic visit dates identify steady HIV-positive partnerships.

Author

Marzel, A, Shilaih, M, Turk, T, Campbell, NK, Yang, W‐L, Böni, J, Yerly, S, Klimkait, T, Aubert, V, Furrer, H, Calmy, A, Battegay, M, Cavassini, M, Bernasconi, E, Schmid, P, Metzner, KJ, Günthard, HF, Kouyos, RD, Bucher, H. C., and Burton‐Jeangros, C.

Subjects
HIV infection transmission, HIV infection epidemiology, COMMUNITY health services, DATA mining, SEXUAL partners
Abstract

Objectives Here we examined the hypothesis that some stable HIV-infected partnerships can be found in cohort studies, as the patients frequently attend the clinic visits together. Methods Using mathematical approximations and shuffling to derive the probabilities of sharing a given number of visits by chance, we identified and validated couples that may represent either transmission pairs or serosorting couples in a stable relationship. Results We analysed 434 432 visits for 16 139 Swiss HIV Cohort Study patients from 1990 to 2014. For 89 pairs, the number of shared visits exceeded the number expected. Of these, 33 transmission pairs were confirmed on the basis of three criteria: an extensive phylogenetic tree, a self-reported steady HIV-positive partnership, and risk group affiliation. Notably, 12 of the validated transmission pairs (36%; 12 of 33) were of a mixed ethnicity with a large median age gap [17.5 years; interquartile range ( IQR) 11.8−22 years] and these patients harboured HIV-1 of predominantly non-B subtypes, suggesting imported infections. Conclusions In the context of the surge in research interest in HIV transmission pairs, this simple method widens the horizons of research on within-pair quasi-species exchange, transmitted drug resistance and viral recombination at the biological level and targeted prevention at the public health level. [ABSTRACT FROM AUTHOR]

Published
2017
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results