Articles tagged with Human Immunodeficiency Virus
Researchers at The Wistar Institute have discovered that an HIV vaccine construct incorporating the adeno-associated virus (AAV) directly impairs the immune response to the HIV virus. The study's findings suggest that AAV vaccines against HIV may cause more harm than good, and their use in humans should be reconsidered.
Researchers found that suppressing herpes simplex virus type 2 (HSV-2) significantly reduces levels of HIV in the blood and rectal secretions, making patients less likely to transmit the virus. This reduction in HIV levels could have a significant impact on transmission of HIV.
A recent study found that early and routine testing for HIV is key to curbing the spread of the disease among teenagers. Teens who have previously been tested are more likely to get re-tested, highlighting the importance of making testing readily available.
Research published in Sexually Transmitted Infections found that nearly one in five young Britons has sex with someone new while abroad, often choosing partners from the UK or Europe to reduce HIV transmission risk. This behavior is associated with risky sexual practices and highlights a gap in healthcare messaging for travelers.
Researchers have identified a potential new way of fighting against HIV infection by targeting human endogenous retroviruses (HERV). A vaccine containing HERV antigens could stimulate T-cells that target cells expressing HERV, potentially protecting people from becoming infected or limiting damage caused by HIV.
A new UCLA study reveals that people seeking antiretroviral medications after high-risk sexual encounters are likely to complete the full treatment regimen. The research also shows a strong demand for publicly available post-exposure prophylaxis among high-risk populations in Los Angeles County.
A University of North Carolina at Chapel Hill study finds that psychological factors, including traumatic life events like abuse, accelerate HIV disease progression and mortality. The research suggests that clinicians should screen patients for depression and trauma to improve health outcomes.
The NIH has awarded $15 million over the next five years to the UCSF-GIVI Center for AIDS Research, doubling its previous support. The center provides strategic services and infrastructure to HIV/AIDS researchers, focusing on translational research and collaborations across disciplines.
Five essayists have been chosen from a shortlist of 40 for their innovative approaches to addressing health inequities in developing countries. The winners tackle topics such as patent systems, food security, HIV/AIDS, and healthcare access in China.
A new model of HIV dynamics accurately predicts the emergence and growth of recombinant forms of the virus in infected individuals. This framework also establishes scaling relationships between the prevalence of these resistant strains and overall infection extent.
A new study suggests that HIV/AIDS originated in Africa and traveled to the US through Haiti around 1969. Most US viruses descended from a single common ancestor originating from Haiti. The research used genetic analysis of archived blood samples to pinpoint the virus's entry point, shedding light on its early spread.
A new study finds that HIV-infected patients are sicker when starting therapy compared to the past. The delay in diagnosis and treatment is particularly pronounced among injection drug users, women, and certain demographic groups.
Researchers at UMass Medical School are developing new strategies to combat HIV/AIDS, including designing inhibitors that can evade drug resistance. The $8.5M grant will support studies on the structure and function of HIV protease, aiming to create more effective treatments for patients.
Researchers have made significant breakthroughs in various medical fields. A new tattooing procedure has improved the precision of VATS, while collaborative efforts have accelerated antibiotic timing. Modified Tai Chi exercises may also help patients with COPD, while human fibrin sealant shows promise for lung resection surgery.
A new study published in JAMA found that antiretroviral drug therapy and non-physician care, such as nursing, are essential in saving the lives of HIV-infected African children. The research showed significant improvements in CD4 cell counts and weight-for-age scores among children treated with antiretrovirals.
High-risk individuals face barriers to testing, including lack of healthcare access and mental health issues. Despite CDC efforts, only 27% of those at highest risk have been tested in the past year, highlighting untapped potential for increased testing rates.
A study found that high-risk individuals are less likely to follow through on HIV testing plans, despite planning to be tested. The study suggests that targeting interventions at these populations could increase testing rates and combat the HIV epidemic.
Local scientists play a crucial role in the fight against HIV, requiring adequate resources to conduct high-quality trials and develop treatments. Western governments must commit to sharing technology and expertise with developing countries on a long-term basis.
Researchers from Imperial College London found that people with medium levels of HIV in their blood are the most likely to spread the virus. They can remain asymptomatic for six to eight years before progressing to AIDS, infecting multiple sexual partners during this time.
A study found HIV-infected African Americans are at a higher risk of developing end-stage renal disease (ESRD) than white patients with HIV, with rates similar to those with diabetes
UF researchers tracked HIV genetic journey from birth to death in four children with HIV, finding the deadly X4 form emerges just before AIDS. The study reveals thymus as key location for viral replication and development of a 'program' of virus evolution over time.
A study of 130 middle-aged and older African-American men found that many engaged in high-risk sexual practices without using condoms. The research also showed that men who were single and displayed fewer HIV symptoms were least likely to use condoms during sex, with 78% able to answer questions about HIV and AIDS correctly.
A new study by David Heckerman and colleagues developed a statistical framework to model HLA-dependent T cell response data. The approach identified 12 correct predictions out of 16, providing significant implications for understanding and developing an HIV vaccine.
A new study reveals that over 30 US states require specific consent for HIV testing, potentially limiting the implementation of CDC's 2006 recommendations. Researchers found that nearly half of these states also require pre-test counseling and disclosure of transmission information to patients.
The NIH grant will support innovative research into HIV transmission and early infection, with a focus on understanding the interactions between HIV and the immune systems of newly infected patients. The study aims to provide new clues for developing a vaccine and improving therapeutic outcomes.
Researchers at Thomas Jefferson University found that HIV recruits cellular miRNA to control viral RNA translation, allowing the virus to remain dormant. Manipulating miRNA's inhibitory effect on HIV may lead to new treatment strategies against the virus.
A study of HIV-infected women found that pregnancy can actually slow disease progression, not accelerate it. The use of HAART during pregnancy significantly reduces the risk of transmitting the virus to the child, and pregnant women tend to have lower risks of disease progression before and after pregnancy.
A new systematic review found that 'abstinence-plus' programs, which present safer sex as an option when abstinence fails, can increase abstinence, condom use, and reduce unprotected sex among North American youth. The study also suggests limited evidence of reduced pregnancy rates among teenage girls.
Research finds that biological and demographic causes, such as anal sex and role versatility, contribute significantly to high HIV prevalence in gay men. Gay men need to reduce unprotected sex rates by several times that of straight men to end the epidemic
A new UCLA study reveals that unstable lifestyles and lack of organization in HIV patients' lives can act as a barrier to regular medical care. The researchers developed a six-item scale to gauge the level of chaos in an adult's life, which found those with more chaos scored higher on the scale and had lower mental health status.
Research found a significant association between decreased platelet count and the development of HIV-associated dementia. Platelet decline was linked to a two-fold increased risk of dementia within six to 12 months after baseline values.
A UCLA/RAND study found that more than half of children with an HIV-infected parent are not consistently in that parent's custody. Children of HIV-infected parents face risks for behavioral and emotional problems, highlighting the need for stable homes to cope with HIV effects.
A new UCLA study found that up to one-fourth of HIV-positive patients in Los Angeles reported feeling stigmatized by their healthcare providers, leading to low access to care and delayed treatment. The perception of stigma was linked to higher odds of reporting low access to care, with significant consequences for patient outcomes.
A study in Kabul found alarmingly high rates of risky injecting and sexual behaviors among injection drug users, with 50% sharing syringes and 76% engaging in paid sex. The incidence of Hepatitis C infection was also high, potentially foreshadowing an increase in HIV rates.
The University of Pittsburgh School of Medicine has been awarded a $16 million grant to establish the Pittsburgh Center for HIV Protein Interactions, which will investigate the life cycle of HIV. Researchers at the center will use advanced technologies to identify key virus-host interactions and develop new drug targets.
Researchers found that HIV reduced population growth in worst-affected areas by two-thirds, but the overall population continues to grow, with a higher crude death rate and lower birth rate in the presence of HIV.
A new study found that 1 in 20 North Carolina men who have sex with men reported using crystal methamphetamine, increasing the risk of spreading HIV and other STDs. Meth use is associated with inconsistent condom use, STD infection, HIV positivity, and erectile dysfunction treatment.
The Internet platform is being exploited by HIV denialists to spread false information about the virus, posing risks to both uninfected and infected individuals. The scientific consensus confirms that HIV causes AIDS, yet denying this fact can lead to distrust of authority and adoption of ineffective treatments.
HIV denialists are spreading misinformation about HIV/AIDS, which can have severe consequences. The scientific community has established that HIV is the cause of AIDS, but denialist groups continue to promote false ideas, putting people at risk of infection and seeking ineffective treatments.
Researchers found that heavy alcohol consumption is associated with lower CD4 cell counts and faster HIV disease progression in HIV-infected persons who are not on antiretroviral therapy. The study suggests that abstaining from alcohol use may decrease the risk of disease progression for these individuals.
A observational cohort study from Côte d'Ivoire found that antiretroviral therapy according to WHO recommendations prevents mother-to-child HIV transmission. The study's findings support the WHO's guidelines for preventing perinatal and postnatal HIV transmission in West Africa.
A study published in the Journal of Women's Health found that few older women with significant risk factors for lifetime exposure to HIV showed interest in being tested. The study, which analyzed data from 514 women aged 50-95, found that only 22% of participants expressed interest in HIV testing.
Researchers emphasize the importance of considering human rights in healthcare practices, citing examples such as HIV-testing in low-income countries. They also highlight concerns about delegated government roles to non-state actors, who often lack accountability.
A new UC Irvine study suggests that co-infection of multiple HIV particles may be the key to preventing deadly strains from emerging and triggering the onset of AIDS. By blocking this process, scientists might be able to ward off AIDS, keeping patients healthy despite carrying the virus.
Researchers genetically modified a plant to halt reproduction of cauliflower mosaic virus, which attacks the same protein complex used by HIV. The plant's protein complex involves two genes that can be blocked to prevent viral replication.
Research suggests that tonsils may facilitate oral HIV transmission through their unique gene expression profiles, which include higher levels of immune function-related genes and lower levels of antiviral proteins. This makes the tonsil tissue more permeable to pathogens, increasing its vulnerability to infection.
A US anti-prostitution pledge restricts funding for HIV programs that support decriminalization or legalization of sex work, hindering global HIV control efforts. Empowering sex workers through organization and unionization can be an effective HIV prevention strategy.
A recent study suggests that adult male circumcision could help prevent HIV transmission in the US, particularly among heterosexual couples. However, the effectiveness of circumcision in reducing HIV risk among men who have sex with men (MSM) is uncertain due to limited data and potential biases.
Three clinical trials in Africa found that adult male circumcision reduced HIV transmission by 51-60%. However, the impact on US populations is uncertain due to differing modes of transmission and circumcision prevalence. The CDC suggests considering circumcision as an additional prevention measure for high-risk men.
Researchers found that HIV protease inhibitors block an enzyme crucial for generating the structural scaffolding of the cell nucleus. This leads to an accumulation of prelamin A and causes disease phenotypes similar to those associated with genetic defects in ZMPSTE24.
Scientists studied SIVs in African green monkeys, finding a recent split that may have led to reduced virulence. This discovery sheds light on the potential course and timing of HIV evolution.
Researchers have developed an induction-maintenance treatment strategy that balances viral suppression with minimal harm to patients. The model suggests six to ten months of induction therapy can achieve durable suppression of HIV, making it a promising approach for eradicating resistant viruses.
Researchers analyze success of HIV entry inhibitors, highlighting need for new classes due to increasing resistance and toxicity concerns. The study concludes that blocking HIV entry by fusion inhibitors and coreceptor antagonists holds major promise for developing a new antiretroviral drug class.
Scientists have discovered how the HIV virus evades the human immune system, revealing a predictable pattern of mutations that can inform the design of an effective vaccine. The study's findings hold tremendous promise for global HIV efforts and could complement smaller functional studies with population-based approaches.
A new UCLA AIDS Institute study found that self-monitoring by HIV-positive patients is an effective strategy to reduce high-risk behavior. By answering questions about their sexual behavior, patients reflected on their own behavior and changed their actions.
A new study found no correlation between conflict and increased HIV prevalence in sub-Saharan Africa, contradicting a common belief. In fact, the prevalence of HIV infection decreased in urban areas affected by conflict, and refugees often had lower rates than their host communities.
Penn researchers have developed a new method for screening drug-resistant forms of HIV that analyzes multiple HIV variants simultaneously, while also reducing time and costs. The technique uses DNA bar coding and pyrosequencing to quantify and characterize hundreds of thousands of HIV variants for drug resistance in a single test.
In two Thai prisons, Médecins Sans Frontières successfully delivered HIV prevention and treatment programs, showing comparable clinical outcomes with other settings. Meanwhile, research highlights the need for increased surveillance and efforts to address escalating road traffic injuries in Africa.
amfAR is funding research projects to better understand the social and biological factors that influence HIV treatment. Studies will explore the potential benefits of maraviroc, a new antiretroviral drug, and examine how stigma affects healthcare quality for people with HIV.
A recent study found that treating hepatitis B patients with the drug entecavir can cause those co-infected with HIV to become resistant to two key anti-HIV drugs. Researchers identified a mutant strain of HIV that developed in one patient, rendering it resistant to lamivudine and emtricitabine.