The latest medical research on HIV / AIDS
The research magnet gathers the latest research from around the web, based on your specialty area. Below you will find a sample of some of the most recent articles from reputable medical journals about hiv / aids gathered by our medical AI research bot.
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Request AccessEfficacy and safety of dolutegravir/lamivudine in virologically suppressed female participants: week 48 data from the pooled TANGO and SALSA studies.
HIV MedicineWomen represent >50% of people with HIV globally but have historically been underrepresented in clinical trials. We evaluated the efficacy and safety of switching to dolutegravir/lamivudine (DTG/3TC) vs continuing their current antiretroviral regimen (CAR) by sex assigned at birth (female and male) in virologically suppressed adults with HIV-1 without prior virological failure in a pooled analysis of two randomized controlled trials.
This analysis included 48-week data from the phase 3 TANGO and SALSA studies. Primary and key secondary endpoints included proportions of participants with HIV-1 RNA ≥50 and <50 copies/mL at week 48, respectively. Safety was also assessed.
Of 1234 participants, 250 (DTG/3TC, n = 133; CAR, n = 117) were female at birth. Week 48 proportions of participants with Snapshot HIV-1 RNA ≥50 copies/mL were similar regardless of sex at birth (DTG/3TC vs CAR: female, <1% [1/133] vs 2% [2/117]; male, <1% [1/482] vs <1% [3/502]). Proportions with HIV-1 RNA <50 copies/mL were high across sexes and treatment groups (DTG/3TC vs CAR: female, 91% [121/133] vs 89% [104/117]; male, 94% [455/482] vs 94% [471/502]). Immunological response with DTG/3TC was slightly higher in female participants. Incidences of adverse events leading to withdrawal and serious adverse events were low and comparable between treatment groups and across sexes. Weight gain was higher with DTG/3TC than with CAR among female participants aged ≥50 years (treatment difference 2.08 kg [95% confidence interval 0.40-3.75]).
Results confirm the robustness of DTG/3TC as a switch option in virologically suppressed females with HIV-1, with outcomes similar to those in males.
Clinical HIV outcome trajectories associated with a history of child protective service out-of-home care: Longitudinal cohort findings with women living with HIV in Canada.
HIV MedicineKnowledge gaps exist regarding the effects of experiencing child protective services (CPS) out-of-home care (e.g. foster homes) among women with HIV. We examined whether CPS out-of-home care was associated with HIV clinical outcome trajectories among women with HIV in a longitudinal cohort study in Ontario, British Columbia, and Quebec, Canada.
At three timepoints across 5 years (2013-2018), we examined self-reported current antiretroviral therapy (ART) use and viral load (VL) detectability (>50 copies/mL). We used latent class growth analysis (LCGA) to identify trajectories of ART use and VL outcomes across study waves. LCGA identifies subgroups (classes) with similar trajectories within the sample. We assessed whether HIV outcome trajectories could be predicted by CPS history. We then conducted a mediation analysis to test whether a mental health latent construct mediated the association between CPS history and detectable VL.
Nearly one-fifth (n = 272; 19%) of participants (n = 1422; mean age 42.8 years) reported CPS out-of-home care. Most participants (89%) were in classes that consistently used ART and had an undetectable VL. Individuals with CPS out-of-home care histories were twice as likely to have a consistently detectable VL (β = 0.72, p = 0.02); there were no differences in ART use trajectories. In mediation analyses, we found an indirect path from CPS history to a consistently detectable VL via baseline mental health status (β = 0.02, 95% confidence interval 0.005-0.04, p = 0.02), with a significant odds ratio (1.12, z = 2.43, p = 0.02).
Among women with HIV in Canada, experiencing childhood CPS out-of-home care was associated with a reduced likelihood of achieving viral suppression, via poorer mental health.
Microhomology-mediated repair machinery and its relationship with HPV-mediated oncogenesis.
Journal of Medical GeneticsHuman Papillomaviruses (HPV) are a diverse family of non-enveloped dsDNA viruses that infect the skin and mucosal epithelia. Persistent HPV infecti...
Risks of alopecia areata in long COVID: Binational population-based cohort studies from South Korea and Japan.
Journal of Medical GeneticsPrevious studies have proposed alopecia areata (AA) as a potential outcome of COVID-19 infection among autoimmune diseases, yet the findings might ...
Impact of education and clinic site champion on extragenital testing for sexually transmitted infections.
International Journal of EpidemiologySexually transmitted infections (STIs) are on the rise in the United States. Infections at extragenital (EG) sites (throat or rectum) may serve as an overlooked reservoir for STIs. The aims of this project were to determine the proportion of patients receiving EG testing and to observe the impact of an educational intervention.
Phase I included four urgent care clinics and baseline data for adults receiving STI testing (Chlamydia trachomatis and Neisseria gonorrhoeae). Clinics received access to an educational presentation regarding the importance of EG testing. Two of these clinics served as pilot sites for the implementation of self-collection kits. Phase II involved further expansion and utilization of clinic site champions.
Phase I baseline data indicated that less than 1% of samples from patients receiving STI testing were from EG sites. There was an increase in EG testing after the educational intervention and implementation of self-collection kits. A larger increase in EG testing was seen after utilization of a site champion in Phase II.
EG infections serve as a potential source for STI transmission which makes multi-site testing necessary. Our interventions to improve EG testing were most effective in Phase II after implementing a clinic site champion.
Exploring patient and staff member views on a 'consent for contact' system for sexual health research: A mixed methods study.
International Journal of EpidemiologyRecruitment in sexual health research is challenging. This study explores the potential of a Consent for Contact system (C4C) - generic consent for research contact - to improve participant recruitment and engagement in sexual health research. Our objectives were to understand patient and staff understanding of research, their views on a separate C4C system, and their preferences for its acceptability in a sexual health clinic setting.
A two-stage study was conducted at a large urban UK sexual health clinic from November 2021 to July 2022. Stage one involved a self-completed questionnaire administered to all patients and staff. In Stage 2, semi-structured interviews (SSIs) further explored patient concerns and preferences. Survey data were analysed using chi-square and Fisher's exact test and thematic analysis was applied to free-text responses and SSIs.
A total of 205/300 patient (68%) and 41/280 staff questionnaires (15%) were completed. Motivations for research participation included altruism and personal interest. Statistically significant differences were found between patients' and staff members' concerns on confidentiality and anticipated feeling of pressure to participate. The majority of staff (n = 38, 93%) and half of patients (n = 100, 49%) supported implementation of a sexual health C4C system. Participants recognised the potential benefits of a sexual health C4C system, including enhanced privacy and increased research opportunities. Concerns were raised about stigma, terminology, and signing-up methods.
This study found the C4C system has the potential to enhance participant recruitment and engagement in sexual health research, but implementation support is narrowly divided with concerns around privacy and sign-up processes. These insights call for a patient-centred design approach, emphasising clear communication and privacy. Future research should focus on implementing and evaluating a sexual health C4C system to further explore their effectiveness and acceptability in different contexts.
HIV Risk Behaviors and the Use of Geosocial Networking Dating Apps among Men Who have Sex with Men and Transgender Women in Lima, Peru: a Cross-Sectional Study.
AIDS and BehaviorGeosocial networking dating apps (GSN apps) are an increasingly widespread technology used by populations throughout the world to facilitate sexual...
Trends in preterm birth in women living with HIV in Switzerland over the last three decades: A multicentric, prospective, cohort study.
HIV MedicineHIV infection and its management during pregnancy to reduce perinatal transmission has been associated with preterm birth (PTB). This management has drastically changed. We aimed to evaluate changes in rates of PTB over 34 years in women living with HIV (WLWH) in Switzerland, and to identify factors and interventions associated with these changes.
We analysed data from 1238 singleton pregnancies, prospectively collected by the Swiss Mother and Child HIV Cohort Study (MoCHiV) and the Swiss HIV Cohort Study (SHCS) between 1986 and 2020. Rates of PTB in this cohort were compared with that of the general Swiss population for three time periods according to changing treatment strategies recommended at the time. We evaluated the association of PTB with sociodemographic, HIV infection and obstetric variables in uni- and multivariate logistic regression.
Rate of PTB in WLWH was highest prior to 2010 (mean 20.4%), and progressively decreased since then (mean 11.3%), but always remained higher than in the general population (5%). Older maternal age, lower CD4 count and detectable viraemia at third trimester (T3), drug consumption and mode of delivery were all significantly associated with both PTB and period of study in univariate analysis. There was no association between PTB and type of antiretroviral regimen. No difference was found in the rate of spontaneous labor between PTB and term delivery groups. Only higher CD4 count at T3 and vaginal delivery were significantly associated with a decrease in PTB over time in multivariate analysis.
Preterm birth in WLWH in Switzerland has drastically decreased over the last three decades, but remains twice the rate of that in the general population. Improved viral control and changes in mode of delivery (vaginal birth recommended if viral loads are low near birth) have led to this progress.
Oral PrEP uptake, adherence, and persistence during periconception periods among women in South Africa: an intervention study.
AIDSWe developed the Healthy Families-PrEP intervention to support HIV-prevention during periconception and pregnancy. We evaluated preexposure prophylaxis (PrEP) use with three objective measures.
We evaluated periconception PrEP uptake and adherence using quarterly plasma tenofovir concentrations. We modeled factors associated with PrEP uptake and high plasma tenofovir (past day dosing). Patterns of use were analyzed using electronic pillcap data. Dried blood spots to measure intracellular tenofovir product (past 2#$##x0200A;months dosing) were analyzed for a subset of women.
Three hundred thirty women with median age 24 (IQR: 22#$#ndash;27) years enrolled. Partner HIV-serostatus was unknown by 96% (N#$##x0200A;#$#equals;#$##x0200A;316); 60% (195) initiated PrEP. High plasma tenofovir concentrations were seen in 35, 25, 22, and 20% of samples at 3, 6, 9, and 12#$##x0200A;months, respectively. Similar adherence was measured by pillcap and dried blood spots. In adjusted models, lower income, alcohol use, and higher HIV stigma were associated with high plasma tenofovir. Eleven HIV-seroconversions were observed (incidence rate: 4.04/100 person-years [95% confidence interval: 2.24#$#ndash;7.30]). None had detectable plasma tenofovir.
The Healthy Families-PrEP intervention supported women in PrEP use. We observed high interest in periconception PrEP and over one-third adhered to PrEP in the first quarter; one-fifth were adherent over a year. High HIV incidence highlights the importance of strategies to reduce HIV incidence among periconception women.
NCT03194308.
An agricultural livelihood intervention is associated with reduced HIV stigma among people living with HIV.
AIDSHIV stigma undermines antiretroviral treatment (ART) adherence and viral suppression. Livelihood interventions may target drivers of negative attitudes towards people living with HIV (PLHIV) by improving their health and strengthening their economic contributions. We examined the effects of a multisectoral agricultural livelihood intervention on HIV stigma among PLHIV in western Kenya.
The intervention included a farming loan and agricultural and financial training. Participants had access to farmland and surface water and were ≥18 years old, on ART >six months, and moderately-to-severely food insecure. We measured internalized, anticipated, and enacted HIV stigma semiannually over two years using validated scales. In blinded intent-to-treat analyses, we compared changes in scores over 24 months, by study arm, using longitudinal multi-level difference-in-differences linear regression models that accounted for clustering.
Of 720 enrolled participants (354 intervention), 55% were female, and the median age was 40 years (interquartile range 34-47 years). Two-year retention was 94%. Compared to the control arm, the intervention resulted in significant decreases (p < 0.001) of 0.42 points (95% confidence interval (CI) -0.52, -0.31) in internalized stigma, 0.43 points (95% CI -0.51, -0.34) in anticipated stigma, and 0.13 points (95% CI -0.16, -0.09) in enacted stigma over 24 months.
The agricultural livelihood intervention reduced HIV stigma among PLHIV. Poverty-reduction approaches may be a novel strategy for reducing HIV stigma.
Spleen tyrosine kinase inhibitor R406 has both antiviral and anti-inflammatory effects on severe influenza A infection.
Journal of Medical GeneticsDeath due to severe influenza is usually a fatal complication of a dysregulated immune response more than the acute virulence of an infectious agen...
Exploring free amino acid profiles in CCHF patients: Implications for disease progression.
Journal of Medical GeneticsThis study investigated the intricate interplay between Crimean-Congo hemorrhagic fever virus (CCHFV) infection and alterations in amino acid metab...
