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1.
Afr J Prim Health Care Fam Med ; 16(1): e1-e12, 2024 Apr 08.
Artigo em Inglês | MEDLINE | ID: mdl-38708735

RESUMO

BACKGROUND: Targeted interventions for key populations remain critical for realisation of epidemic control for human immunodeficiency virus (HIV) infection because of the causal relationship between HIV infection in the general population and among key population groups. AIM: To consolidate evidence on the fast-track interventions towards achieving HIV epidemic control among key populations. METHODS: A rapid scoping review was conducted using the methodological framework by Arksey and O' Malley. The Population, Intervention, Context and Outcome (PICO) framework was used to identify relevant studies using key words with Boolean operators in electronic data bases, namely CINHAL, Web of Science, Psych Info and Sabinet. Studies were extracted using a modified data extraction tool, and results were presented narratively. RESULTS: A total of 19 articles were included in this review. Most articles were primary studies (n = 17), while another involved the review of existing literature and policies (n = 2) and routinely collected data (n = 1). Most studies were conducted in the United States of America (n = 6), while another were conducted in China, Kenya, Botswana, South Africa and Mozambique. All studies revealed findings on tested interventions to achieve HIV epidemic control among key populations. CONCLUSION: Effective interventions for HIV epidemic control were stand-alone behavioural preventive interventions, stand-alone biomedical preventive strategies and combination prevention approaches. Furthermore, the findings suggest that effective activities to achieve HIV epidemic control among key populations should be centred around prevention.Contribution: The findings of this study have policy and practice implications for high HIV burden settings such as South Africa in terms of interventions to facilitate realisation of the Joint United Nations Programme on HIV/AIDS (UNAIDS) 95-95-95 targets, thereby contributing to HIV epidemic control.


Assuntos
Epidemias , Infecções por HIV , Humanos , Infecções por HIV/prevenção & controle , Infecções por HIV/epidemiologia , Epidemias/prevenção & controle , Síndrome da Imunodeficiência Adquirida/prevenção & controle , Síndrome da Imunodeficiência Adquirida/epidemiologia
2.
S Afr Fam Pract (2004) ; 66(1): e1-e8, 2024 Apr 29.
Artigo em Inglês | MEDLINE | ID: mdl-38708751

RESUMO

BACKGROUND:  Transgender women bear a huge burden of human immunodeficiency virus (HIV) in South Africa. However, they are not fully engaged in healthcare across the HIV continuum of care. In addition, transgender women face multiple facets of stigma and discrimination as well as socio-economic inequalities, which all have a negative impact on antiretroviral therapy (ART) adherence. OBJECTIVE:  The study aimed at exploring and describing the experiences of ART adherence of transgender women living with HIV in the Buffalo City Metro Municipality. METHODS:  The study employed an interpretative phenomenological analysis (IPA) design. Twelve participants were enrolled using a snowballing sampling technique. Data were collected using semi-structured interviews and analysed using an IPA framework. RESULTS:  While exploring determinants to ART adherence among transgender women living with HIV in Buffalo City Metro, two superordinate themes emerged: enablers to ART adherence and psychosocial factors promoting adherence. The study found that factors such as differentiated ART service delivery, ARV medicines-related factors, motivators for taking treatment and support systems facilitated ART adherence. CONCLUSION:  Emerging from this study is the need to scale up differentiated, person-centred ART service deliveries that will enhance access and adherence to treatment for transgender women.Contribution: This study provides unique insights on factors enhancing ART adherence among transgender women. There is a paucity of literature on access to HIV care services for key and vulnerable populations, and these findings will be shared in the country and in the region.


Assuntos
Infecções por HIV , Adesão à Medicação , Pessoas Transgênero , Humanos , África do Sul , Feminino , Infecções por HIV/tratamento farmacológico , Infecções por HIV/psicologia , Adesão à Medicação/psicologia , Pessoas Transgênero/psicologia , Adulto , Masculino , Estigma Social , Pesquisa Qualitativa , Fármacos Anti-HIV/uso terapêutico , Pessoa de Meia-Idade , Entrevistas como Assunto , Antirretrovirais/uso terapêutico , Adulto Jovem
3.
Curationis ; 47(1): e1-e7, 2024 Apr 16.
Artigo em Inglês | MEDLINE | ID: mdl-38708757

RESUMO

BACKGROUND:  The human immunodeficiency virus and acquired immunodeficiency syndrome (HIV and AIDS) pandemic has greatly affected Africa, particularly Ghana. The pandemic remains a public health concern, particularly in terms of accessing essential medication and improving quality of life for people living with the disease. OBJECTIVES:  This study aimed to explore and describe the experiences of persons diagnosed and living with HIV who are on antiretroviral therapy. METHOD:  A qualitative, exploratory, descriptive, and contextual design was used. The research population included persons diagnosed with HIV who were receiving antiretroviral therapy at three public hospitals in Ghana. Data saturation was achieved after conducting 15 semi-structured interviews. Creswell's six steps of data analysis were used to analyse the data, which resulted in the emergence of one main theme and six sub-themes. RESULTS:  The main theme identified by the researchers highlighted the participants' diverse experiences of being diagnosed and living with HIV. It was found that the study participants expressed shock, disbelief, surprise, and fear of death after being diagnosed with HIV. The participants also experienced stigmatisation, discrimination, and rejection. CONCLUSION:  There is a need for further research on the extent of discrimination and stigmatisation and the effect on optimal adherence to antiretroviral therapy. Continuous public education on HIV is required to limit the extent of discrimination and stigmatisation.Contribution: The study has highlighted the various emotions related to stigma and discrimination expressed by persons living with HIV (PLHIV). The findings will guide policy on eliminating discrimination and stigmatisation for people living with HIV.


Assuntos
Infecções por HIV , Pesquisa Qualitativa , Humanos , Gana , Feminino , Masculino , Adulto , Infecções por HIV/tratamento farmacológico , Infecções por HIV/psicologia , Pessoa de Meia-Idade , Estigma Social , Síndrome da Imunodeficiência Adquirida/tratamento farmacológico , Síndrome da Imunodeficiência Adquirida/psicologia , Entrevistas como Assunto/métodos , Antirretrovirais/uso terapêutico , Qualidade de Vida/psicologia , Fármacos Anti-HIV/uso terapêutico
4.
Glob Health Action ; 17(1): 2338635, 2024 Dec 31.
Artigo em Inglês | MEDLINE | ID: mdl-38717826

RESUMO

BACKGROUND: There are scant data on the causes of adult deaths in sub-Saharan Africa. We estimated the level and trends in adult mortality, overall and by different causes, in rural Rakai, Uganda, by age, sex, and HIV status. OBJECTIVES: To estimate and analyse adult cause-specific mortality trends in Rakai, Uganda. METHODOLOGY: Mortality information by cause, age, sex, and HIV status was recorded in the Rakai Community Cohort study using verbal autopsy interviews, HIV serosurveys, and residency data. We estimated the average number of years lived in adulthood. Using demographic decomposition methods, we estimated the contribution of each cause of death to adult mortality based on the average number of years lived in adulthood. RESULTS: Between 1999 and 2019, 63082 adults (15-60 years) were censused, with 1670 deaths registered. Of these, 1656 (99.2%) had completed cause of death data from verbal autopsy. The crude adult death rate was 5.60 (95% confidence interval (CI): 5.33-5.87) per 1000 person-years of observation (pyo). The crude death rate decreased from 11.41 (95% CI: 10.61-12.28) to 3.27 (95% CI: 2.89-3.68) per 1000 pyo between 1999-2004 and 2015-2019. The average number of years lived in adulthood increased in people living with HIV and decreased in HIV-negative individuals between 2000 and 2019. Communicable diseases, primarily HIV and Malaria, had the biggest decreases, which improved the average number of years lived by approximately extra 12 years of life in females and 6 years in males. There were increases in deaths due to non-communicable diseases and external causes, which reduced the average number of years lived in adulthood by 2.0 years and 1.5 years in females and males, respectively. CONCLUSION: There has been a significant decline in overall mortality from 1999 to 2019, with the greatest decline seen in people living with HIV since the availability of antiretroviral therapy in 2004. By 2020, the predominant causes of death among females were non-communicable diseases, with external causes of death dominating in males.


Main findings: There are significant declines in mortality in people living with HIV. However, mortality in HIV-negative people increased due to non-communicable diseases in females, and injuries and external causes of death among males.Added knowledge: In this HIV-endemic area, decreasing adult mortality has been documented over the last 20 years. This paper benchmarks the changes in cause-specific mortality in this area.Global health impact for policy action: As in many African countries, more effort is needed to reduce mortality for non-communicable diseases, injuries, and external causes of death as these seem to have been neglected.


Assuntos
Autopsia , Causas de Morte , Infecções por HIV , Humanos , Uganda/epidemiologia , Feminino , Masculino , Adulto , Pessoa de Meia-Idade , Adolescente , Adulto Jovem , Infecções por HIV/mortalidade , População Rural/estatística & dados numéricos , Mortalidade/tendências , Estudos de Coortes
5.
BMC Public Health ; 24(1): 1258, 2024 May 08.
Artigo em Inglês | MEDLINE | ID: mdl-38720248

RESUMO

BACKGROUND: The approval of long-acting pre-exposure prophylaxis PrEP (LA-PrEP) in the United States brings opportunities to overcome barriers of oral PrEP, particularly among sexual and gender minority communities who bear a higher HIV burden. Little is known about real-time decision-making among potential PrEP users of LA-PrEP post-licensure. METHODS: We held focus group discussions with people assigned male at birth who have sex with men in Baltimore, Maryland to explore decision-making, values, and priorities surrounding PrEP usage. A sexual and gender minority-affirming health center that provides PrEP services supported recruitment. Discussions included a pile-sorting activity and were audio-recorded. Recordings were transcribed and analyzed iteratively, combining an inductive and deductive approach. RESULTS: We held five focus groups from Jan-June 2023 with 23 participants (21 cisgender men who have sex with men, two transgender women who have sex with men; mean age 37). Among participants, 21 were on oral PrEP, one was on injectable PrEP, and one had never taken PrEP. Most had never heard about LA-PrEP. When making decisions about PrEP, participants particularly valued efficacy in preventing HIV, side effects, feeling a sense of security, and ease of use. Perceptions varied between whether oral or injectable PrEP was more convenient, but participants valued the new opportunity for a choice in modality. Factors influencing PrEP access included cost, individual awareness, provider awareness, and level of comfort in a healthcare environment. Participants emphasized how few providers are informed about PrEP, placing the burden of being informed about PrEP on them. Comfort and trust in a provider superseded proximity as considerations for if and where to access PrEP. CONCLUSIONS: There is still low awareness about LA-PrEP among sexual and gender minority communities; thus, healthcare providers have a critical role in influencing access to LA-PrEP. Despite this, providers are still vastly underinformed about PrEP and underprepared to support clients in contextualized ways. Clients are more likely to engage in care with affirming providers who offer non-judgmental conversations about sex and life experiences. Provider education in the United States is urgently needed to better support clients in choosing a PrEP modality that is right for them and supporting adherence for effective HIV prevention.


Assuntos
Grupos Focais , Infecções por HIV , Profilaxia Pré-Exposição , Humanos , Masculino , Baltimore , Adulto , Infecções por HIV/prevenção & controle , Feminino , Acessibilidade aos Serviços de Saúde , Minorias Sexuais e de Gênero/psicologia , Pessoa de Meia-Idade , Fármacos Anti-HIV/uso terapêutico , Fármacos Anti-HIV/administração & dosagem , Tomada de Decisões , Homossexualidade Masculina/psicologia , Homossexualidade Masculina/estatística & dados numéricos , Pessoas Transgênero/psicologia , Pessoas Transgênero/estatística & dados numéricos
6.
Trials ; 25(1): 311, 2024 May 08.
Artigo em Inglês | MEDLINE | ID: mdl-38720383

RESUMO

BACKGROUND: HIV-associated tuberculosis (TB) contributes disproportionately to global tuberculosis mortality. Patients hospitalised at the time of the diagnosis of HIV-associated disseminated TB are typically severely ill and have a high mortality risk despite initiation of tuberculosis treatment. The objective of the study is to assess the safety and efficacy of both intensified TB treatment (high dose rifampicin plus levofloxacin) and immunomodulation with corticosteroids as interventions to reduce early mortality in hospitalised patients with HIV-associated disseminated TB. METHODS: This is a phase III randomised controlled superiority trial, evaluating two interventions in a 2 × 2 factorial design: (1) high dose rifampicin (35 mg/kg/day) plus levofloxacin added to standard TB treatment for the first 14 days versus standard tuberculosis treatment and (2) adjunctive corticosteroids (prednisone 1.5 mg/kg/day) versus identical placebo for the first 14 days of TB treatment. The study population is HIV-positive patients diagnosed with disseminated TB (defined as being positive by at least one of the following assays: urine Alere LAM, urine Xpert MTB/RIF Ultra or blood Xpert MTB/RIF Ultra) during a hospital admission. The primary endpoint is all-cause mortality at 12 weeks comparing, first, patients receiving intensified TB treatment to standard of care and, second, patients receiving corticosteroids to those receiving placebo. Analysis of the primary endpoint will be by intention to treat. Secondary endpoints include all-cause mortality at 2 and 24 weeks. Safety and tolerability endpoints include hepatoxicity evaluations and corticosteroid-related adverse events. DISCUSSION: Disseminated TB is characterised by a high mycobacterial load and patients are often critically ill at presentation, with features of sepsis, which carries a high mortality risk. Interventions that reduce this high mycobacterial load or modulate associated immune activation could potentially reduce mortality. If found to be safe and effective, the interventions being evaluated in this trial could be easily implemented in clinical practice. TRIAL REGISTRATION: ClinicalTrials.gov NCT04951986. Registered on 7 July 2021 https://clinicaltrials.gov/study/NCT04951986.


Assuntos
Infecções por HIV , Hospitalização , Levofloxacino , Rifampina , Tuberculose , Humanos , Rifampina/uso terapêutico , Rifampina/administração & dosagem , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Tuberculose/tratamento farmacológico , Tuberculose/diagnóstico , Tuberculose/mortalidade , Levofloxacino/uso terapêutico , Resultado do Tratamento , Ensaios Clínicos Fase III como Assunto , Antituberculosos/uso terapêutico , Antituberculosos/efeitos adversos , Estudos de Equivalência como Asunto , Quimioterapia Combinada , Prednisona/uso terapêutico , Prednisona/administração & dosagem , Prednisona/efeitos adversos , Infecções Oportunistas Relacionadas com a AIDS/tratamento farmacológico , Infecções Oportunistas Relacionadas com a AIDS/mortalidade , Infecções Oportunistas Relacionadas com a AIDS/microbiologia , Infecções Oportunistas Relacionadas com a AIDS/diagnóstico , Fatores de Tempo
7.
Health SA ; 29: 2454, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38726063

RESUMO

Background: There is limited understanding of the difficulties and experiences faced by grandparents who assume the responsibility of caring for AIDS orphans. Aim: The objective of the study was to investigate and depict the difficulties encountered by grandparents who provide care for AIDS orphans in the Western Cape province of South Africa. Setting: The study was conducted in the City of Cape Town Metropolitan and the Overberg Municipality. Methods: The study used qualitative approach with an exploratory-descriptive design. A purposive sampling technique was utilised to select 25 grandparents. Semi-structured interviews were conducted, audio-recorded, transcribed verbatim, and analysed thematically using ATLAS.ti, version 7. Results: Financial difficulties, a lack of support, HIV and/or AIDS stigma, and dealing with rebellious teenagers were primary challenges affecting the well-being of grandparents. Conclusion: The study found that while financial challenges were significant, other factors such as poor family support contributed to the decline in the well-being of grandparents caring for AIDS orphans. Contribution: The study's results can lead to improved public health programmes that address the identified challenges and health needs of grandparents providing care to AIDS orphans and the orphans under their care.

8.
PLoS One ; 19(5): e0303289, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38722891

RESUMO

Malaria and Human Immunodeficiency Virus infections are among the top 10 causes of death in low income countries. Furthermore, many medicines used in these treatment areas are substandard, which contributes to the high death rate. Using a monitoring system to identify substandard and falsified medicines, the study aims to evaluate the quality of antimalarial and antiretroviral medicines in Sahel countries, assessing site conditions, compliance of medicines with pharmacopoeia tests, formulation equivalence with a reference medicine, and the influence of climate on quality attributes. Ultra Performance Liquid Chromatography methods for eight active pharmaceutical ingredients were validated following the International Conference for Harmonization guideline for its detection and quantification. Quality control consists of visual inspections to detect any misinformation or imperfections and pharmacopeial testing to determine the quality of pharmaceutical products. Medicines which complied with uniformity dosage units and dissolution tests were stored under accelerated conditions for 6 months. Artemether/Lumefantrine and Lopinavir/Ritonavir formulations failed uniformity dosage units and disintegration tests respectively, detecting a total of 28.6% substandard medicines. After 6 months stored under accelerated conditions (40 °C // 75% relative humidity) simulating climatic conditions in Sahel countries, some medicines failed pharmacopeia tests. It demonstrated the influence of these two factors in their quality attributes. This study emphasizes the need of certified quality control laboratories as well as the need for regulatory systems to maintain standards in pharmaceutical manufacturing and distribution in these countries, especially when medicines are transported to rural areas where these climatic conditions are harsher.


Assuntos
Antimaláricos , Controle de Qualidade , Antimaláricos/análise , Antimaláricos/normas , Humanos , Antirretrovirais/análise , Saúde Pública , Ritonavir/análise , Ritonavir/uso terapêutico , Administração Oral , Medicamentos Fora do Padrão/análise , Infecções por HIV/tratamento farmacológico , Malária/tratamento farmacológico , Lopinavir/análise , Lopinavir/uso terapêutico
10.
PLoS One ; 19(5): e0301988, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38722926

RESUMO

Adolescents with HIV (AWH) face the double burden of dealing with challenges presented by their developmental phase while coping with stigma related to HIV, affecting their mental health. Poor mental health complicates adherence to daily treatment regimens, requiring innovative psychosocial support strategies for use with adolescents. We assessed the effectiveness of a mindfulness and acceptance-based intervention on the mental health of AWH in Uganda. One hundred and twenty-two AWH, mean age 17 ±1.59 (range 15 to 19 years), 57% female, receiving care at a public health facility in Kampala were enrolled in an open-label randomized trial (ClinicalTrials.gov: NCT05010317) with assessments at pre-and post-intervention. The mindfulness and acceptance-based intervention involved weekly 90-minute group sessions for four consecutive weeks facilitated by two experienced trainers. Sessions involved clarifying values, skillfully relating to thoughts, allowing and becoming aware of experiences non-judgmentally, and exploring life through trial and error. The control group received the current standard of care. Three mental health domains (depression, anxiety, and internalized stigma) were compared between the intervention and control groups. A linear mixed effects regression was used to analyze the effect of the intervention across the two time points. Results showed that the intervention was associated with a statistically significant reduction in symptoms of depression (ß = -10.72, 95%CI: 6.25, -15.20; p < .0001), anxiety (ß = -7.55, 95%CI: 2.66, -12.43; p = .0003) and stigma (ß = -1.40, 95%CI: 0.66 to -2.15; p = .0004) over time. Results suggest that mindfulness and acceptance-based interventions have the potential to improve the mental health of AWH.


Assuntos
Depressão , Infecções por HIV , Saúde Mental , Atenção Plena , Humanos , Adolescente , Feminino , Masculino , Uganda , Atenção Plena/métodos , Infecções por HIV/psicologia , Infecções por HIV/terapia , Adulto Jovem , Depressão/terapia , Depressão/psicologia , Ansiedade/terapia , Ansiedade/psicologia , Estigma Social , Adaptação Psicológica
11.
PLoS One ; 19(5): e0291155, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38722944

RESUMO

BACKGROUND: The Central African Republic (CAR) is one of the countries with the highest prevalence of viral hepatitis infection in the world. Coinfection with HIV increases the morbidity and mortality beyond that of mono-infection with either hepatitis or HIV. The present study describes the geographic distribution of viral hepatitis infections and molecular characterization of these viruses in the CAR. METHODOLOGY: Out of 12,599 persons enrolled during the fourth Multiple Indicator Cluster Survey of 2010 in the CAR, 10,621 Dried Blood Spot (DBS) samples were obtained and stored at -20°C. Of these DBS, 4,317 samples were randomly selected to represent all regions of the CAR. Serological tests for hepatitis B, D, and C viruses were performed using the ELISA technique. Molecular characterization was performed to identify strains. RESULTS: Of the 4,317 samples included, 53.2% were from men and 46.8% from women. The HBsAg prevalence among participants was 12.9% and that HBc-Ab was 19.7%. The overall prevalence of HCV was 0.6%. Co-infection of HIV/HBV was 1.1% and that of HBV/HDV was 16.6%. A total of 77 HBV, 6 HIV, and 6 HDV strains were successfully sequenced, with 72 HBV (93.5%) strains belonging to genotype E and 5 (6.5%) strains belonging to genotype D. The 6 HDV strains all belonged to clade 1, while 4 recombinants subtype were identified among the 6 strains of HIV. CONCLUSION: Our study found a high prevalence of HBV, HBV/HDV and HBV/HIV co-infection, but a low prevalence of HCV. CAR remains an area of high HBV endemicity. This study's data and analyses would be useful for establishing an integrated viral hepatitis and HIV surveillance program in the CAR.


Assuntos
Coinfecção , Infecções por HIV , Humanos , Infecções por HIV/epidemiologia , Infecções por HIV/virologia , Infecções por HIV/complicações , Feminino , Masculino , Coinfecção/epidemiologia , Coinfecção/virologia , Adulto , Estudos Soroepidemiológicos , República Centro-Africana/epidemiologia , Pessoa de Meia-Idade , Adolescente , Adulto Jovem , Hepatite Viral Humana/epidemiologia , Hepatite Viral Humana/virologia , Hepatite B/epidemiologia , Hepatite B/virologia , Vírus da Hepatite B/genética , Vírus da Hepatite B/isolamento & purificação , Criança , Hepatite C/epidemiologia , Hepatite C/virologia , Filogenia , Pré-Escolar , Prevalência
12.
PLoS One ; 19(5): e0301442, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38722958

RESUMO

OBJECTIVES: Outbreaks of injection drug use (IDU)-associated infections have become major public health concerns in the era of the opioid epidemic. This study aimed to (1) identify county-level characteristics associated with acute HCV infection and newly diagnosed IDU-associated HIV in Oklahoma and (2) develop a vulnerability index using these metrics. METHODS: This study employs a county-level ecological design to examine those diagnosed with acute or chronic HCV or newly diagnosed IDU-associated HIV. Poisson regression was used to estimate the association between indicators and the number of new infections in each county. Primary outcomes were acute HCV and newly diagnosed IDU-associated HIV. A sensitivity analysis included all HCV (acute and chronic) cases. Three models were run using variations of these outcomes. Stepwise backward Poisson regression predicted new infection rates and 95% confidence intervals for each county from the final multivariable model, which served as the metric for vulnerability scores. RESULTS: Predictors for HIV-IDU cases and acute HCV cases differed. The percentage of the county population aged 18-24 years with less than a high school education and population density were predictive of new HIV-IDU cases, whereas the percentage of the population that was male, white, Pacific Islander, two or more races, and people aged 18-24 years with less than a high school education were predictors of acute HCV infection. Counties with the highest predicted rates of HIV-IDU tended to be located in central Oklahoma and have higher population density than the counties with the highest predicted rates of acute HCV infection. CONCLUSIONS: There is high variability in county-level factors predictive of new IDU-associated HIV infection and acute HCV infection, suggesting that different public health interventions need to be tailored to these two case populations.


Assuntos
Infecções por HIV , Hepatite C , Humanos , Oklahoma/epidemiologia , Infecções por HIV/epidemiologia , Infecções por HIV/mortalidade , Infecções por HIV/complicações , Masculino , Feminino , Adulto , Hepatite C/epidemiologia , Adolescente , Adulto Jovem , Pessoa de Meia-Idade , Abuso de Substâncias por Via Intravenosa/complicações , Abuso de Substâncias por Via Intravenosa/epidemiologia
13.
Nat Commun ; 15(1): 3924, 2024 May 09.
Artigo em Inglês | MEDLINE | ID: mdl-38724518

RESUMO

An effective HIV-1 vaccine must elicit broadly neutralizing antibodies (bnAbs) against highly diverse Envelope glycoproteins (Env). Since Env with the longest hypervariable (HV) loops is more resistant to the cognate bnAbs than Env with shorter HV loops, we redesigned hypervariable loops for updated Env consensus sequences of subtypes B and C and CRF01_AE. Using modeling with AlphaFold2, we reduced the length of V1, V2, and V5 HV loops while maintaining the integrity of the Env structure and glycan shield, and modified the V4 HV loop. Spacers are designed to limit strain-specific targeting. All updated Env are infectious as pseudoviruses. Preliminary structural characterization suggests that the modified HV loops have a limited impact on Env's conformation. Binding assays show improved binding to modified subtype B and CRF01_AE Env but not to subtype C Env. Neutralization assays show increases in sensitivity to bnAbs, although not always consistently across clades. Strikingly, the HV loop modification renders the resistant CRF01_AE Env sensitive to 10-1074 despite the absence of a glycan at N332.


Assuntos
Anticorpos Neutralizantes , Anticorpos Anti-HIV , HIV-1 , Produtos do Gene env do Vírus da Imunodeficiência Humana , HIV-1/imunologia , Humanos , Produtos do Gene env do Vírus da Imunodeficiência Humana/imunologia , Produtos do Gene env do Vírus da Imunodeficiência Humana/química , Produtos do Gene env do Vírus da Imunodeficiência Humana/metabolismo , Anticorpos Anti-HIV/imunologia , Anticorpos Neutralizantes/imunologia , Vacinas contra a AIDS/imunologia , Testes de Neutralização , Células HEK293 , Sequência Consenso , Infecções por HIV/virologia , Infecções por HIV/imunologia , Ligação Proteica , Epitopos/imunologia
14.
Sci Rep ; 14(1): 10620, 2024 05 09.
Artigo em Inglês | MEDLINE | ID: mdl-38724547

RESUMO

Although most people living with HIV (PLWH) receiving antiretroviral therapy (ART) achieve continuous viral suppression, some show detectable HIV RNA as low-level viremia (LLV) (50-999 copies/mL). Drug resistance mutations (DRMs) in PLWH with LLV is of particular concern as which may lead to treatment failure. In this study, we investigated the prevalence of LLV and LLV-associated DRMs in PLWH in Zhengzhou City, China. Of 3616 ART-experienced PLWH in a long-term follow-up cohort from Jan 2022 to Aug 2023, 120 were identified as having LLV. Of these PLWH with LLV, we obtained partial pol and integrase sequences from 104 (70 from HIV-1 RNA and 34 from proviral DNA) individuals. DRMs were identified in 44 individuals. Subtyping analysis indicated that the top three subtypes were B (48.08%, 50/104), CRF07_BC (31.73%, 33/104), and CRF01_AE (15.38%, 16/104). The proportions of nucleoside reverse transcriptase inhibitors (NRTIs), non-nucleoside reverse transcriptase inhibitors (NNRTIs), protease inhibitors (PIs), and integrase strand transfer inhibitors (INSTIs) associated DRMs were 23.83% (24/104), 35.58% (37/104), 5.77% (6/104), and 3.85% (4/104), respectively, which contributed to an overall prevalence of 42.31% (44/104). When analyzed by individual DRMs, the most common mutation(s) were V184 (18.27%, 19/104), followed by V179 (11.54%, 12/104), K103 (9.62%, 10/104), Y181 (9.62%, 10/104), M41 (7.69%, 8/104), and K65R (7.69%, 8/104). The prevalence of DRMs in ART-experienced PLWH with LLV is high in Zhengzhou City and continuous surveillance can facilitate early intervention and provision of effective treatment.


Assuntos
Farmacorresistência Viral , Infecções por HIV , HIV-1 , Mutação , Viremia , Humanos , HIV-1/genética , HIV-1/efeitos dos fármacos , Infecções por HIV/tratamento farmacológico , Infecções por HIV/virologia , Infecções por HIV/epidemiologia , China/epidemiologia , Farmacorresistência Viral/genética , Masculino , Feminino , Viremia/tratamento farmacológico , Viremia/epidemiologia , Adulto , Pessoa de Meia-Idade , Fármacos Anti-HIV/uso terapêutico , Fármacos Anti-HIV/farmacologia , RNA Viral/genética
15.
AIDS Res Ther ; 21(1): 29, 2024 May 09.
Artigo em Inglês | MEDLINE | ID: mdl-38724976

RESUMO

BACKGROUND: The COVID-19 pandemic has put the provision of health services globally at risk. In Sub-Saharan Africa, it had a major impact on HIV services. However, there is a lack of data on the post-pandemic period. This study aims to evaluate the resumption of HIV services and retention in care for adolescents and young people in the period following the COVID-19 pandemic. METHODS: A retrospective cohort study was conducted using interrupted time series analysis. Three periods were considered: pre-pandemic (form June 2019 to March 2020), pandemic (form April 2020 to March 2022) post-pandemic (from April 2022 to March 2023). Six outcome measures were considered: number of outpatient visits, HIV tests, HIV positivity ratio, the antiretroviral treatment (ART) non-adherence ratio, recall ratio, and the return ratio for adolescent and young adults on ART. RESULTS: During the study period, 447,515 outpatient visits and 126,096 HIV tests were recorded. After a reduction at the beginning of the pandemic period, both visits and tests increased during the pandemic (p < 0.05) and decreased in the post-pandemic (p < 0.05), recovering the pre-pandemic trends. The HIV positivity ratio slightly decreased from 3.3% to 1.7% during the study period (p < 0.05). The ART non-adherence ratio decreased from 23.4% to 2.4% throughout the study period (p < 0.05), with a drop at the beginning of the post-pandemic period (p < 0.05). The recall ratio increased during the study period (p < 0.05) with a drop at the beginning of the pandemic and post-pandemic periods (p < 0.05). The return ratio decreased at the beginning of the pandemic (p < 0.05) but returned to the pre-pandemic ratio in the post-pandemic period. CONCLUSIONS: The post-pandemic values of the investigated outcomes were comparable to pre-pandemic period, or even improved. Differently from other services, such as the community activities, that have been severely affected by COVID-19 pandemic, the HIV service system has shown resilience following emergency situation.


Assuntos
COVID-19 , Infecções por HIV , Análise de Séries Temporais Interrompida , Humanos , Adolescente , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , COVID-19/epidemiologia , Estudos Retrospectivos , Adulto Jovem , Feminino , Masculino , Adulto , SARS-CoV-2 , Fármacos Anti-HIV/uso terapêutico , Adesão à Medicação/estatística & dados numéricos , Atenção à Saúde , Pandemias
16.
J Int AIDS Soc ; 27(5): e26250, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38726655

RESUMO

INTRODUCTION: This study explored the behaviours of people living with HIV in Singapore and Hong Kong in terms of achieving and maintaining their physical and psychological wellbeing in relation to HIV, to identify the challenges and support needed in HIV care. METHODS: This qualitative study involved 90-minute interviews among Singapore and Hong Kong people living with HIV aged ≥18 years to explore health-related quality of life perceptions and gaps in patient empowerment in HIV care during February-May 2022. The COM-B (C: Capability; O: Opportunity; M: Motivation; B: Behaviour) framework was used during data analysis to identify behaviour facilitators and barriers for people living with HIV to achieve and maintain their wellbeing. Detailed accounts of respondents' experience of living with and managing HIV, that is what worked well, unmet needs and perceived significance of wellbeing indicators, were analysed qualitatively via a combination of inductive content and deductive frameworks. RESULTS: A total of 30 and 28 respondents were recruited from Singapore (SG) and Hong Kong (HK), respectively. Most respondents were aged 20-49 years (SG: 83.3%; HK: 64.3%), males (SG: 96.7%; HK: 92.9%), men who have sex with men (SG: 93.3%; HK: 71.4%), had university or higher education (SG: 73.3%; HK: 50.0%) and were fully employed (SG: 73.3%; HK: 57.1%). In both Singapore and Hong Kong, physical health was considered a key focus of overall wellbeing, albeit attention to long-term health associated with cardiovascular and renal health was less salient. The impact of symptoms, side effects of treatment, mood and sleep were among the top wellbeing indicators of importance. Respondents felt that insufficient information was provided by physicians, citing consultation time and resource constraints impeding further expression of concerns to their physicians during consultation. Respondents prioritized functional wellness and delegated psychosocial health to supportive care professionals, patient groups, families and/or friends. CONCLUSIONS: There is a need in Singapore and Hong Kong to empower people living with HIV to establish better communications with their physicians and be more involved in their treatment journey and equally prioritize their psychosocial wellbeing.


Assuntos
Infecções por HIV , Qualidade de Vida , Humanos , Singapura , Masculino , Hong Kong , Adulto , Feminino , Infecções por HIV/psicologia , Pessoa de Meia-Idade , Qualidade de Vida/psicologia , Adulto Jovem , Pesquisa Qualitativa , Empoderamento , Entrevistas como Assunto
17.
J Glob Health ; 14: 04083, 2024 May 10.
Artigo em Inglês | MEDLINE | ID: mdl-38726557

RESUMO

Background: Intergenerational family care, which was upended by the HIV epidemic in sub-Saharan Africa (SSA), may return to a pre-HIV era arrangement as access to antiretroviral therapy (ART) expands and treated adults can once again provide support for older household members. Empirical research has demonstrated positive 'spillover effects' of ART uptake from treated adults to younger generations, yet much less is known about the nature and breadth of such effects to older generations. This study explores the role and lived experiences among adults who take up ART and those of an older generation with whom they live. Methods: We conducted a qualitative study consisting of semi-structured interviews (n = 46) embedded in the Agincourt Health and Demographic Surveillance System (HDSS) in rural South Africa, between July and September 2022. We purposefully sampled two respondent categories: (i) young or middle-aged adults on ART (aged 18-59 years old); and (ii) older adults (aged ≥60 years old) who were affiliated with a young or middle-aged adult on ART. We used thematic content analysis to extract, code, and categorise relevant text by types of upward spillover effects from ART in younger adults to older adults. Quantitative data was extracted from the existing Agincourt HDSS database and matched to qualitative interview data based on Clinic link unique identifiers of study participants. Results: Mean age was 41 years among young or middle-aged adults (n = 29) and 72 years among older adults (n = 17). Among younger adults, time on ART ranged from five months to more than 21 years. Both young or middle-aged adults on ART and older adults reported positive spillover effects for older adults across five main tiers: caregiving, financial support, physical and mental health, living arrangements and household relationships, and stigma and reputation. Spillover challenges included financial costs and caregiving responsibilities following ART initiation of young or middle-aged adults, although these additional caregiving responsibilities were generally not perceived as particularly burdensome. Conclusions: ART is likely to benefit older adults in South Africa whose families are affected by HIV. This study identified a wide range of perceived spillover effects from ART in younger adults to older adults, including improvements to upward intergenerational support. These qualitative findings offer a guide to researchers, policymakers, and donors to capitalise on the broader societal effects of a large-scale health intervention to further support family structures and meet the needs of a growing older population.


Assuntos
Infecções por HIV , Relação entre Gerações , Pesquisa Qualitativa , Humanos , África do Sul , Infecções por HIV/tratamento farmacológico , Feminino , Adulto , Pessoa de Meia-Idade , Masculino , Adulto Jovem , Adolescente , Adesão à Medicação/estatística & dados numéricos , Adesão à Medicação/psicologia , Idoso , Apoio Social , Fármacos Anti-HIV/uso terapêutico
18.
Arts Health ; : 1-17, 2024 May 11.
Artigo em Inglês | MEDLINE | ID: mdl-38733156

RESUMO

BACKGROUND: In Malawi, well-meaning HIV and AIDS interventions imagined in the "Global North" continue to ignore how local people construct the world. This paper explores how folk media can be used to enable research on HIV and AIDS to be positioned within localised cultural paradigms. METHODS: Drawing on Chewa epistemology, I used folk media methods supported by participant observation. The research was conducted in three phases over 15 days in two rural communities and captured the workshop processes, participants' process reviews, verbal journals and creative outputs through pictures, audio and video recordings, field notes and reflections. Data was analysed thematically. FINDING: Folk media can be used to structure research, to facilitate a conducive environment for research practice, as data and as a method for the generation of data/knowledge. CONCLUSIONS: Folk media can be a strong, replicable, culturally grounded, decolonizing research methodology that promotes collaboration and the deconstruction of power relations.

19.
Viral Immunol ; 37(4): 202-215, 2024 05.
Artigo em Inglês | MEDLINE | ID: mdl-38717822

RESUMO

HIV-infected (HIV+) aging adult individuals who have achieved undetectable viral load and improved CD4 T cell counts due to long-term antiretroviral therapy (ART) may continue to experience inflammation and immunosenescence. Therefore, we evaluated the plasma levels of proinflammatory and anti-inflammatory cytokines in 173 HIV+ aging adult individuals with age ranging from 22 to 81 years on long-term ART with viral load mostly <20 HIV RNA copies/mL and compared with 92 HIV-uninfected (HIV- or healthy controls) aging individuals. We found that the median levels of TNF-α, IFN-γ, IL-1ß, IL-6, and IL-10 were higher (p < 0.001 to <0.0001) and IL-17 trended lower in HIV+ individuals than healthy controls. Increasing CD4 T cell counts in the HIV+ cohort did not significantly change the circulating cytokine levels, although levels of IL-1ß increased. However, IL-17 levels significantly decreased with increasing CD4 counts in the healthy controls and yet unchanged in the HIV+ cohort. Of note, the levels of circulating IL-17 were significantly reduced comparatively in the healthy controls where the CD4 count was below 500, yet once above 500 the levels of CD4, IL-17 levels were comparable with the HIV+ cohort. With increasing CD8 T cell counts, the levels of these cytokines were not significantly altered, although levels of TNF-α, IFN-γ, and IL-6 declined, whereas IL-1ß and IL-17 were slightly elevated. Furthermore, increasing age of the HIV+ cohort did not significantly impact the cytokine levels although a slight increase in TNF-α, IL-6, IL-10, and IL-17 was observed. Similarly, these cytokines were not significantly modulated with increasing levels of undetectable viral loads, whereas some of the HIV+ individuals had higher levels of TNF-α, IFN-γ, and IL-1ß. In summary, our findings show that HIV+ aging adult individuals with undetectable viral load and restored CD4 T cell counts due to long-term ART still produce higher levels of both proinflammatory and anti-inflammatory cytokines compared with healthy controls, suggesting some level of inflammation.


Assuntos
Envelhecimento , Citocinas , Infecções por HIV , Carga Viral , Humanos , Infecções por HIV/tratamento farmacológico , Infecções por HIV/sangue , Infecções por HIV/imunologia , Adulto , Pessoa de Meia-Idade , Citocinas/sangue , Masculino , Feminino , Idoso , Contagem de Linfócito CD4 , Adulto Jovem , Idoso de 80 Anos ou mais , Antirretrovirais/uso terapêutico
20.
BMC Health Serv Res ; 24(1): 606, 2024 May 09.
Artigo em Inglês | MEDLINE | ID: mdl-38720312

RESUMO

BACKGROUND: Assisted index case testing (ICT), in which health care workers take an active role in referring at-risk contacts of people living with HIV for HIV testing services, has been widely recognized as an evidence-based intervention with high potential to increase status awareness in people living with HIV. While the available evidence from eastern and southern Africa suggests that assisted ICT can be an effective, efficient, cost-effective, acceptable, and low-risk strategy to implement in the region, it reveals that feasibility barriers to implementation exist. This study aims to inform the design of implementation strategies to mitigate these feasibility barriers by examining "assisting" health care workers' experiences of how barriers manifest throughout the assisted ICT process, as well as their perceptions of potential opportunities to facilitate feasibility. METHODS: In-depth interviews were conducted with 26 lay health care workers delivering assisted ICT in Malawian health facilities. Interviews explored health care workers' experiences counseling index clients and tracing these clients' contacts, aiming to inform development of a blended learning implementation package. Transcripts were inductively analyzed using Dedoose coding software to identify and describe key factors influencing feasibility of assisted ICT. Analysis included multiple rounds of coding and iteration with the data collection team. RESULTS: Participants reported a variety of barriers to feasibility of assisted index case testing implementation, including sensitivities around discussing ICT with clients, privacy concerns, limited time for assisted index case testing amid high workloads, poor quality contact information, and logistical obstacles to tracing. Participants also reported several health care worker characteristics that facilitate feasibility (knowledge, interpersonal skills, non-stigmatizing attitudes and behaviors, and a sense of purpose), as well as identified process improvements with the potential to mitigate barriers. CONCLUSIONS: Maximizing assisted ICT's potential to increase status awareness in people living with HIV requires equipping health care workers with effective training and support to address and overcome the many feasibility barriers that they face in implementation. Findings demonstrate the need for, as well as inform the development of, implementation strategies to mitigate barriers and promote facilitators to feasibility of assisted ICT. TRIAL REGISTRATION: NCT05343390. Date of registration: April 25, 2022.


Assuntos
Estudos de Viabilidade , Infecções por HIV , Pesquisa Qualitativa , Humanos , Malaui , Infecções por HIV/diagnóstico , Feminino , Masculino , Adulto , Entrevistas como Assunto , Teste de HIV/métodos , Busca de Comunicante/métodos , Agentes Comunitários de Saúde
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