Articles tagged with Hiv Research
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A recent study led by Professor Simona Stäger identified a molecular imprint that predisposes memory CD4+ T lymphocytes to cell death in people living with HIV. The discovery could have implications for other chronic infectious diseases and may lead to the development of new therapeutic approaches.
Researchers at Johns Hopkins Medicine have identified a new target for treating HIV infection by blocking the neutral sphingomyelinase-2 (nSMase2) enzyme. Inhibiting this enzyme can prevent HIV replication and kill infected cells, offering a promising therapeutic approach.
A digital assay called STAMP has been developed to directly measure the presence of HIV in single drops of blood, providing a more efficient and accurate alternative to traditional methods. The test uses CRISPR-Cas13 technology to detect and signal the presence of HIV, allowing for real-time monitoring of viral loads.
Researchers aim to identify best practices for increasing viral suppression in low-income populations with HIV. They will examine state AIDS Drug Assistance Programs to understand disparities in care and outcomes.
African countries have made significant progress in increasing their share of global HIV research output, rising from 5.1% in 1986 to 31.3% between 1986 and 2020. Despite this growth, the continent still produces relatively low amounts of HIV research compared to its high burden of infections.
Researchers identified a molecule that allows HIV to hide in reservoirs within CD4+ T lymphocytes. The aryl hydrocarbon receptor protein plays a crucial role in viral latency and has shown potential as a good therapeutic target.
The African-led PrEPVacc trial has completed participant enrolment at all four sites in East and Southern Africa. The trial is testing two different ways to prevent HIV, including HIV vaccine regimens and a new form of oral pre-exposure prophylaxis (PrEP).
A Johns Hopkins Medicine-led team identified protein fragments that stimulate the immune system to recognize and attack HIV. The study's technique, called reductionist cell-free antigen processing, replicates the complex events in the human immune system, enabling the identification of immunodominant epitopes.
Researchers from Oregon Health & Science University have discovered how stem cell transplantation can kill the virus that causes AIDS. The study, published in the journal Immunity, reveals that two circumstances must co-exist for a cure to occur and documents the order in which HIV is cleared from the body.
A UC Riverside-led study created a virtual village to connect older people living with HIV, reducing social isolation and depression. The virtual space provided health, community-based, and personal resources, facilitating positive connections and friendships.
The study, published in Science Translational Medicine, shows robust T-cell responses in volunteers participating in a phase 1 clinical trial of a self-assembling nanoparticle HIV vaccine. The antigen used stimulates VRC01-class B cells, an immune response considered promising for boosting in further studies.
A new randomized, controlled trial aims to integrate nutritional counseling with food-generating activities among people with HIV and food insecurity in the Dominican Republic. The project seeks to reduce viral loads, increase ART adherence, and improve overall health outcomes.
Research from Boston Medical Center found that pulmonary tuberculosis enhances HIV antibody responses and increases the prevalence of antibody-resistant strains. This study has significant implications for HIV vaccines and antibody-based therapies, highlighting the need for novel strategies to generate broad and potent antibodies.
A video-based smoking cessation program developed by a University of Massachusetts Amherst researcher has helped nearly 40% of HIV-positive smokers in Nepal quit tobacco. The program, which includes 11 video sessions and is accessible via smartphone app, was found to be highly effective in promoting abstinence among participants.
Researchers at Temple University and the University of Nebraska Medical Center developed a novel dual gene-editing approach that can effectively eliminate HIV infection. The therapy targets both HIV-1, the virus responsible for AIDS, and CCR5, a co-receptor that facilitates viral entry into cells.
A cohort study of 196 people treated with tecovirimat found that HIV status did not impact treatment outcomes. Only 22% of participants experienced nonsevere adverse effects, and 4 serious adverse events occurred, with 3 being persons with HIV. The findings contradict previous uncertainty about HIV's role in mpox acquisition.
Research at King's College London found a higher prevalence of HIV diagnoses among people who use mental health services in South London. The study suggests that there is a complex relationship between HIV and mental illness, with potential risks for both acquiring HIV or developing mental illness.
A new HIV vaccine has shown improved ability to neutralize virus in preclinical tests, using nanoparticle display of multiple Env proteins. The vaccine design uses flexible sugar molecules called glycans to present self to the immune system.
Researchers uncover how HIV enters human bodies via dendritic cells using Siglec-1 membrane protein; formation of nanoclusters enhances capture, leading to virus compartment formation. Understanding this process can aid in developing effective treatments for HIV/AIDS.
A daily statin medication reduced the risk of major adverse cardiovascular events by 35% among people living with HIV. The NIH study, REPRIEVE, enrolled over 7,700 volunteers and found that pitavastatin calcium lowered cardiovascular risk without increasing adverse drug events.
A new study found that more than 60% of parents had heard of PrEP, with relatively low levels of knowledge and high intentions to discuss and support their adolescents' PrEP care. The study highlights the importance of educating parents about PrEP to increase self-efficacy and uptake among at-risk populations.
Research found that STI and HIV testing rates dropped significantly in March 2020, while positive test rates rose. The decline was likely driven by public health recommendations limiting in-person visits during the pandemic.
Researchers at The Wistar Institute identified hopeaphenol as a plant-based compound that targets HIV reservoirs, reducing stress on the immune system and potentially decreasing age-related conditions. The compound was found to inhibit viral reactivation, blocking replication and production of new viruses in infected cells.
Scientists have identified monocytes, a type of white blood cell, as a potential target for eliminating HIV infections. A new study found that monocytes can harbor stable HIV genomes, which may provide a new direction for efforts to improve therapies and eventually cure the disease.
A recent study found that the mitochondrial antioxidant MitoQ can reverse the detrimental effects of HIV and antiretroviral therapy on organs such as the brain, heart, and liver. The researchers used humanized mice infected with HIV and treated them with MitoQ for three months.
The March issue of CHEST journal features 44 articles on topics such as asthma, critical care, and sleep medicine. The journal also includes complementary web resources, including visual abstracts.
A new study examines the concerns of parents of sexual and gender minority (SGM) adolescents regarding HIV pre-exposure prophylaxis (PrEP) use. Parents cited effectiveness and adverse effects as key factors in their decision-making, while also expressing questions about how to discuss PrEP with their children.
Researchers have discovered that HIV creates reservoirs as early as the first days of infection, hiding and persisting during antiretroviral therapy. This finding is a major obstacle to curing HIV, but it also offers new opportunities for treatment development.
A new study has confirmed that people living with HIV who switch from efavirenz to dolutegravir may gain more weight and have a higher risk of developing high blood pressure. The study found that patients on dolutegravir gained an average of 1.78 kg in 12 months, compared to those on efavirenz.
Researchers found dapivirine levels in breast milk to be very low, posing no safety concerns. The study supports the inclusion of breastfeeding populations in global guidelines for the use of the dapivirine vaginal ring for HIV prevention.
A 53-year-old man has been cured of HIV after receiving a stem cell transplant, marking the third person to achieve this. The patient's genome contained a mutation in the CCR5 gene, making it impossible for most HIV viruses to enter his CD4+ T-lymphocytes.
The DELIVER study found that the vaginal dapivirine ring posed no safety concerns when used in the third trimester of pregnancy. The study enrolled women at different stages of gestation and reported similar pregnancy outcomes between those using the ring and a placebo.
The AIDS Clinical Trials Group (ACTG) will present 29 presentations at the Conference on Retroviruses and Opportunistic Infections (CROI) 2023. The studies focus on COVID-19, HIV cure, pathogenesis, treatment, long-term complications, tuberculosis, hepatitis C, and contraception.
A team of researchers from UNC and CDC developed an injectable implant that can release HIV PrEP medications for up to six months, providing full protection. The technology has shown promise in non-human primates and could potentially be adapted for human use.
A new study reveals that all 50 US states now allow minors to consent independently to some STI/HIV services, but confidentiality protections are rare and vary significantly. The laws remain complex, with gaps in coverage for prevention services like the HPV vaccine and PrEP.
A new study found Black South Africans who migrated to find work reported better emotional well-being and were at lower risk for depression after the move. The research may help policymakers tailor mental health resources to underprivileged migrants and those seeking economic mobility.
Researchers have identified a distinct latent reservoir of HIV-infected CD4+ T cells in the central nervous system (CNS), separate from the latent reservoir in blood and lymph tissue. This finding highlights a new challenge in creating a cure for HIV, as any curative therapy would need to activate both dormant reservoirs.
A Rutgers study found that pregnant people with HIV have higher levels of chronic systemic inflammation and immune activation, leading to poor growth in children. The study aimed to investigate the impact on babies exposed to HIV but not infected.
Research reveals that commonly used antiretroviral drugs TAF and TDF directly impact mitochondria's energy production in immune cells. The study suggests a larger energy reduction when combined with other antiretrovirals, sparking concerns about potential long-term effects on human cells.
A Phase 3 clinical trial testing an experimental HIV vaccine regimen found the treatment to be safe but ineffective in preventing HIV acquisition. The trial involved over 3,900 volunteers and concluded that the number of HIV infections were equivalent between the vaccine and placebo arms.
Researchers discovered host proteins APOBEC3 can aid HIV's latency, a major hurdle to cure research. The finding raises questions about the role of these proteins and potential ways to block their activity to inhibit viral persistence.
A new study published in The Lancet HIV reveals that women experiencing recent intimate partner violence are three times more likely to contract HIV. The research highlights the intersectional epidemic of IPV and HIV in Sub-Saharan Africa, where women face increased risk of HIV acquisition and less frequent viral load suppression.
A new study finds epigenetic aging is associated with aberrant neural oscillatory dynamics serving visuospatial processing in people with HIV. Participants showed accelerated biological age and different brain activity patterns compared to controls, suggesting a link between biological aging and neural function in PWH.
A new study published in The Journal of Rural Health found that urban men who have sex with men (MSM) are more likely to get vaccinated and tested for Mpox than their rural counterparts. The study also revealed that rural MSM perceived themselves as less susceptible to the disease and had lower intention to be vaccinated.
A new study suggests that expanding Medicaid coverage in Houston, combined with increased use of PrEP and antiviral medications, could lead to a significant decline in new HIV infections among young Black gay, bisexual, and other men who have sex with men. The model projects a potential decrease in HIV incidence rate to almost 50% with...
A recent study by Texas A&M University reveals that rural family medicine physicians are less comfortable providing sexual risk reduction counseling to adolescents compared to their urban counterparts. This disparity highlights the need for increased awareness and training of PrEP-related clinical activities among rural providers, whic...
Rice University researchers are developing implants that can produce and deliver monoclonal anti-HIV antibody therapeutics for at least a year. The project aims to reduce the cost and improve the logistics of HIV treatment, making it more accessible and beneficial for patients worldwide.
Researchers at Scripps Research, IAVI, Fred Hutch, and VRC publish study data in Science, revealing a stepwise approach to producing antibodies capable of targeting wide range of HIV variants. The Phase 1 trial shows favorable safety profile and induces targeted response in 97% of vaccinated individuals.
A new study reveals that HIV infection permanently alters immune cells, leading to overreaction to other pathogens and prolonged inflammation. This 'immunologic memory' of the original HIV infection puts people living with HIV at risk for cardiovascular disease and neurocognitive dysfunction.
Researchers found a significant increase in Kaposi's sarcoma incidence among young Black men in the South, with rates jumping by 3.3% per year. The study suggests that HIV infection and social determinants like poverty and lack of access to medical care contribute to this disparity.
Researchers found that people living with HIV have a significantly delayed internal body clock, consistent with the symptoms of jet lag. This disruption may contribute to increased health problems experienced by those with HIV. The study suggests a strong need for further research on younger people living with HIV in other countries.
Researchers discovered that expressing Vpu in infected cells makes them more difficult for non-neutralizing antibodies to target, allowing the virus to evade the immune system. The study provides valuable insights into developing effective vaccines against HIV-1.
Researchers at the University of Cincinnati are awarded a $3.5 million NIH grant to examine how alcohol use alone or in combination with fentanyl affects HIV medications, including PrEP medication. The study aims to determine metabolite signatures and pharmacological biomarkers of PrEP in HIV-negative populations.
Researchers at KTH Royal Institute of Technology developed a method to track the growth of the HIV virus by highlighting its essential molecules. This breakthrough could lead to the creation of new therapies that target these molecules to prevent viral growth.
A new Danish-led study has demonstrated a way to strengthen the body's own ability to fight HIV, even when standard treatment is paused. The study found that monoclonal antibodies and Romidepsin can help the immune system recognize and kill infected cells.
Research in Zambia suggests children infected with HIV are more likely to struggle with cognitive and mental health issues despite well-controlled disease. Early intervention through better nutrition and antiretroviral therapies may improve neurological function.
Researchers develop custom vaccines that induce broadly neutralizing antibodies to protect against HIV variants. The team uses a modified HIV spike protein to prime the immune system, paving the way for an effective HIV vaccine.
Researchers found pre-existing differences in gut bacteria between people with and without HIV, including decreased Bacteroides species and increased Megasphaera elsdenii. These changes were present even before infection occurred, suggesting a potential link between gut microbiome and HIV susceptibility.
In a new study, Rutgers ethicists and Harvard doctor argue that giving some trial participants a placebo is not only acceptable but also demanded by ethics. They claim that this practice is necessary to test potential cures while minimizing risks.
A recent study published in The Lancet HIV found that individuals with viral suppression through antiretroviral therapy (ART) medications can live longer and experience less disability compared to those with unsuppressed HIV. This research highlights the critical importance of maintaining support for HIV treatment programs to ensure op...