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1.
J Acquir Immune Defic Syndr ; 95(3): 283-290, 2024 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-38032748

RESUMO

BACKGROUND: Given the disproportionate rates of incarceration and lower life expectancy (LE) among Black sexual minority men (BSMM) and Black transgender women (BTW) with HIV, we modeled the impact of decarceration and screening for psychiatric conditions and substance use on LE of US BSMM/BTW with HIV. METHODS: We augmented a microsimulation model previously validated to predict LE and leading causes of death in the US with estimates from the HPTN 061 cohort and the Veteran's Aging Cohort Studies. We estimated independent associations among psychiatric and substance use disorders, to simulate the influence of treatment of one condition on improvement on others. We used this augmented simulation to estimate LE for BSMM/BTW with HIV with a history of incarceration under alternative policies of decarceration (ie, reducing the fraction exposed to incarceration), screening for psychiatric conditions and substance use, or both. RESULTS: Baseline LE was 61.3 years. Reducing incarceration by 25%, 33%, 50%, and 100% increased LE by 0.29, 0.31, 0.53, and 1.08 years, respectively, versus no reductions in incarceration. When reducing incarceration by 33% and implementing screening for alcohol, tobacco, substance use, and depression, in which a positive screen triggers diagnostic assessment for all psychiatric and substance use conditions and linkage to treatment, LE increased by 1.52 years compared with no screening or decarceration. DISCUSSION: LE among BSMM/BTW with HIV is short compared with other people with HIV. Reducing incarceration and improving screening and treatment of psychiatric conditions and substance use could substantially increase LE in this population.


Assuntos
Infecções por HIV , Minorias Sexuais e de Gênero , Transtornos Relacionados ao Uso de Substâncias , Pessoas Transgênero , Masculino , Humanos , Feminino , Estados Unidos/epidemiologia , Infecções por HIV/complicações , Infecções por HIV/epidemiologia , Pessoas Transgênero/psicologia , Saúde Mental , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Expectativa de Vida
2.
Nat Commun ; 12(1): 4450, 2021 07 16.
Artigo em Inglês | MEDLINE | ID: mdl-34272399

RESUMO

Health systems have improved their abilities to identify, diagnose, treat and, increasingly, achieve viral suppression among people living with HIV (PLHIV). Despite these advances, a higher burden of multimorbidity and poorer health-related quality of life are reported by many PLHIV in comparison to people without HIV. Stigma and discrimination further exacerbate these poor outcomes. A global multidisciplinary group of HIV experts developed a consensus statement identifying key issues that health systems must address in order to move beyond the HIV field's longtime emphasis on viral suppression to instead deliver integrated, person-centered healthcare for PLHIV throughout their lives.


Assuntos
Atenção à Saúde/normas , Qualidade de Vida , Adulto , Comorbidade , Consenso , Atenção à Saúde/organização & administração , Infecções por HIV , Humanos , Morbidade , Estigma Social , Inquéritos e Questionários
4.
PLoS One ; 8(4): e60147, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23573238

RESUMO

OBJECTIVE: Rectal microbicides are needed to reduce the risk of HIV acquisition associated with unprotected receptive anal intercourse. The MTN-007 study was designed to assess the safety (general and mucosal), adherence, and acceptability of a new reduced glycerin formulation of tenofovir 1% gel. METHODS: Participants were randomized 1:1:1:1 to receive the reduced glycerin formulation of tenofovir 1% gel, a hydroxyethyl cellulose placebo gel, a 2% nonoxynol-9 gel, or no treatment. Each gel was administered as a single dose followed by 7 daily doses. Mucosal safety evaluation included histology, fecal calprotectin, epithelial sloughing, cytokine expression (mRNA and protein), microarrays, flow cytometry of mucosal T cell phenotype, and rectal microflora. Acceptability and adherence were determined by computer-administered questionnaires and interactive telephone response, respectively. RESULTS: Sixty-five participants (45 men and 20 women) were recruited into the study. There were no significant differences between the numbers of ≥ Grade 2 adverse events across the arms of the study. Likelihood of future product use (acceptability) was 87% (reduced glycerin formulation of tenofovir 1% gel), 93% (hydroxyethyl cellulose placebo gel), and 63% (nonoxynol-9 gel). Fecal calprotectin, rectal microflora, and epithelial sloughing did not differ by treatment arms during the study. Suggestive evidence of differences was seen in histology, mucosal gene expression, protein expression, and T cell phenotype. These changes were mostly confined to comparisons between the nonoxynol-9 gel and other study arms. CONCLUSIONS: The reduced glycerin formulation of tenofovir 1% gel was safe and well tolerated rectally and should be advanced to Phase 2 development. TRIAL REGISTRATION: ClinicalTrials.gov NCT01232803.


Assuntos
Adenina/análogos & derivados , Fármacos Anti-HIV/administração & dosagem , Infecções por HIV/prevenção & controle , Organofosfonatos/administração & dosagem , Adenina/administração & dosagem , Adenina/efeitos adversos , Administração Retal , Adulto , Fármacos Anti-HIV/efeitos adversos , Método Duplo-Cego , Feminino , Géis , Humanos , Mucosa Intestinal/efeitos dos fármacos , Mucosa Intestinal/metabolismo , Masculino , Pessoa de Meia-Idade , Análise de Sequência com Séries de Oligonucleotídeos , Organofosfonatos/efeitos adversos , Reto/efeitos dos fármacos , Reto/metabolismo , Reto/patologia , Tenofovir , Transcriptoma/efeitos dos fármacos , Adulto Jovem
5.
PLoS Pathog ; 8(3): e1002529, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22412369

RESUMO

Deep sequencing technologies have the potential to transform the study of highly variable viral pathogens by providing a rapid and cost-effective approach to sensitively characterize rapidly evolving viral quasispecies. Here, we report on a high-throughput whole HIV-1 genome deep sequencing platform that combines 454 pyrosequencing with novel assembly and variant detection algorithms. In one subject we combined these genetic data with detailed immunological analyses to comprehensively evaluate viral evolution and immune escape during the acute phase of HIV-1 infection. The majority of early, low frequency mutations represented viral adaptation to host CD8+ T cell responses, evidence of strong immune selection pressure occurring during the early decline from peak viremia. CD8+ T cell responses capable of recognizing these low frequency escape variants coincided with the selection and evolution of more effective secondary HLA-anchor escape mutations. Frequent, and in some cases rapid, reversion of transmitted mutations was also observed across the viral genome. When located within restricted CD8 epitopes these low frequency reverting mutations were sufficient to prime de novo responses to these epitopes, again illustrating the capacity of the immune response to recognize and respond to low frequency variants. More importantly, rapid viral escape from the most immunodominant CD8+ T cell responses coincided with plateauing of the initial viral load decline in this subject, suggestive of a potential link between maintenance of effective, dominant CD8 responses and the degree of early viremia reduction. We conclude that the early control of HIV-1 replication by immunodominant CD8+ T cell responses may be substantially influenced by rapid, low frequency viral adaptations not detected by conventional sequencing approaches, which warrants further investigation. These data support the critical need for vaccine-induced CD8+ T cell responses to target more highly constrained regions of the virus in order to ensure the maintenance of immunodominant CD8 responses and the sustained decline of early viremia.


Assuntos
Genoma Viral/genética , Estudo de Associação Genômica Ampla , Infecções por HIV/virologia , HIV-1/genética , Evasão da Resposta Imune/imunologia , Linfócitos T CD8-Positivos/imunologia , Variação Genética , Variação Estrutural do Genoma , Infecções por HIV/imunologia , Infecções por HIV/prevenção & controle , HIV-1/imunologia , HIV-1/patogenicidade , Humanos , Evasão da Resposta Imune/genética , Análise de Sequência com Séries de Oligonucleotídeos , RNA Viral/análise , Análise de Sequência de RNA , Vacinas Virais/imunologia
6.
J Acquir Immune Defic Syndr ; 55(1): 8-13, 2010 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-21423876

RESUMO

Antiretroviral pre-exposure prophylaxis (PrEP) drugs may be partially effective for preventing HIV transmission. In anticipation of clinical trial results, behavioral HIV prevention scientists have begun examining possible challenges in the implementation of PrEP in clinical practice or community settings. These efforts have acknowledged the need to supplement PrEP drug delivery with risk-reduction counseling and ongoing HIV testing, and we suggest that an even wider range of clinical, diagnostic, behavioral, and monitoring services will be necessary to support PrEP as a population-level HIV prevention strategy. This Commentary offers an integrated structure for optimizing PrEP delivery in clinical practice, which includes five components: 1) PrEP drugs; 2) safety screening and repeated HIV testing; 3) behavioral interventions to facilitate PrEP initiation, maintain adherence, and minimize risk compensation; 4) the development of strategies to engage PrEP users and the healthcare system over the long term; and 5) population-level monitoring. We provide a brief overview of each component and highlight implications of this five-part package for implementation. Attempts to plan for scale-up without explicitly addressing non-pharmaceutical elements may overlook critical implementation needs, barriers, and facilitators.

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