Articles tagged with Hiv Research
Researchers at MGH found that individuals infected with both HIV and HCV who maintain low viral levels have stronger immune responses. Early antiretroviral treatment before CD4 levels drop may be crucial to preserve HCV control in co-infected patients. The study suggests a potential strategy for improving treatment outcomes.
A large NIH-commissioned study found no evidence that hormonal contraception increases a woman's chances of becoming infected with HIV. The study followed thousands of women in Africa and compared their patterns of contraceptive use to their risk of infection with HIV, finding no statistically significant difference.
A recent study by researchers at Yale University found that routine HIV screening in virtually all health settings is cost-effective and saves lives. The study provides strong support for the US CDC guidelines recommending HIV screening of all persons aged 13-64 in all healthcare settings.
Researchers found that HIV-1 infection leads to the loss of immune cells in the gut, which may never return to normal levels. A subset of patients showed only half the normal number of CD4+ effector memory T cells in their GI tracts despite effective antiretroviral therapy.
A large HIV/AIDS treatment trial found that interrupting antiretroviral therapy more than doubles the risk of AIDS or death from any cause. The study used two levels of CD4+ T cells to guide therapy suspension and restarting, but participants receiving episodic therapy had a significantly increased risk of disease progression.
Six Bulgarian nurses and a Palestinian doctor were wrongly accused of deliberately infecting over 400 children with HIV in Libya since 1999. The Lancet calls for their immediate release due to lack of legal basis.
Researchers have created a diagnostic test that can detect viruses like influenza, HIV, and RSV in under 60 seconds using surface-enhanced Raman spectroscopy (SERS). The technique works by measuring the change in frequency of a near-infrared laser as it scatters off viral DNA or RNA.
Researchers found that adolescents with a history of arrest were more likely to engage in unprotected sex acts and use substances during sex. This increased risk was attributed to higher rates of substance abuse, mental health issues, and unfavorable attitudes towards risky behavior.
A study by Jane Kim and colleagues suggests that introducing a once-in-a-lifetime screen for cervical cancer can provide opportunities to offer additional health checks, such as depression treatment and anemia screening. The optimal package of health services balances monetary limitations and personnel shortages, maximizing health bene...
Researchers at The Miriam Hospital are developing a new vaccination delivery strategy for teens, aiming to prevent Human Papilloma Virus (HPV) and other sexually transmitted diseases. The Boston Celtics Shamrock Foundation has provided $25,000 in funding to explore effective vaccine distribution methods among high-risk adolescents.
Researchers at Albert Einstein College of Medicine successfully targeted and destroyed HIV-infected cells in mice using radioimmunotherapy. The treatment aims to eliminate the virus-infected cells that make infections chronic, potentially leading to a cure for HIV-infected patients.
Researchers found that specific HLA Class I/HIV viral fragment combinations are associated with a more powerful antiviral response. The study suggests that genetic factors play a significant role in determining how well an individual's immune system controls HIV during early infection.
The National Institutes of Health has awarded a $4.5-million supplemental grant to UCLA's Center for HIV Prevention and Research to develop microbicides combatting HIV transmission. This funding will support collaborative work with Johns Hopkins University, University of Pittsburgh, and CONRAD.
Scientists have begun a clinical safety trial in Africa to test the first vaccine to prevent HIV transmission from mothers to children through breastfeeding. The ALVAC-HIV vaccine, which has shown promise in monkeys and adult studies, aims to develop immunity in infants, preventing up to 8,000 infections per year in Uganda's children.
Researchers at Rockefeller University developed a modified HIV virus that can infect both human and monkey cells, paving the way for more effective vaccine testing. By manipulating key proteins, they created a 'simian tropic HIV' (stHIV) that replicates vigorously in primate cells.
A study published in PLOS Medicine found a strong association between heavy alcohol consumption and high-risk sexual behaviors in men and women in Botswana. The research highlights the need to address alcohol abuse within HIV prevention programs, considering cultural and social significance of alcohol use.
A team of researchers has identified a specific protein segment within the GBV-C viral protein NS5A that strongly inhibits HIV from replicating in cells grown in labs. This finding builds on earlier work showing that people with HIV who are also infected with GBV-C live longer than those infected only with HIV.
Researchers discovered that APOBEC3G forms large RNA protein complexes to block HIV and protect against jumping genes. This finding may lead to new approaches for controlling HIV infection.
Duke University researchers developed a computer model to predict the effectiveness of various microbicidal recipes in destroying HIV before it reaches body tissues. The study found that a thin coating of microbicide delivered to the vagina can significantly reduce HIV transmission.
The Veterans Aging Cohort Study (VACS) has received a five-year award to examine the impact of aging and alcohol use among those with and without chronic HIV infection. The study will investigate the independent effects of these factors, as well as their interaction, on health outcomes.
The economic cost of HIV/AIDS in the US is estimated to be $36.4 billion annually, with minorities facing higher indirect costs due to lost productivity. The study suggests that universal access to antiretroviral therapy could reduce costs and improve outcomes.
A review of published research suggests that cigarette smoking increases the risk of contracting HIV and progressing to AIDS. The study found that five out of six studies concluded smokers were more likely to become HIV positive, with varying risks ranging from 60% to tripling.
Researchers found that the human gut stores a significant amount of HIV, equivalent to nearly twice the amount in the bloodstream. The gut's role in harboring the virus was not fully understood until now.
Researchers discovered that teens have similar numbers of unprotected sex acts with both casual and main partners, despite using condoms more often with casual partners. This highlights the importance of targeting adolescents' attitudes towards casual sexual partners in HIV intervention programs.
Researchers from the Université de Montréal have identified a defect in the immune response to HIV and found a way to correct it. The team successfully stimulated a protein that prevents the virus from making immune system cells dysfunctional, opening new prospects for therapeutic strategies.
Researchers found a molecular pathway that turns off immune cells targeting HIV, leading to exhaustion. Blocking this pathway restores function to these cells, suggesting a potential new approach to treating HIV infection.
Researchers like Barkley aim to understand the basic science of HIV-1 function and develop new therapies. The recent NIH grant supports a new area of AIDS research focusing on the chemical processes between the two pieces of reverse transcriptase protein that mobilize the HIV-1 virus.
A large-scale haplotype-mapping study aims to identify genetic factors that enable some HIV-infected individuals to suppress viral replication without treatment. The study, known as the Elite Controller Collaborative Study, hopes to develop a first-generation HIV vaccine that can successfully suppress viral levels.
University of Pittsburgh researchers have developed a novel therapeutic vaccine that activates killer T cells to target HIV, offering new hope for treatment. The vaccine uses dendritic cells modified with specific molecules to stimulate the immune system's response.
Researchers at Indiana University are working on a project to craft messages that encourage women to be tested for HIV and enroll in research clinical studies. The study aims to identify barriers to testing and develop persuasive messages to overcome them.
Dr. Joe Sodroski, a renowned HIV researcher, received the 2006 Retrovirology Prize for his significant contributions to understanding HIV infection and disease. He made key discoveries about how HIV infects cells and causes disease, including identifying the Rev gene and producing the first X-ray structure of gp120.
A study of 38 infant-mother pairs found that women who transmitted HIV to their babies had lower levels of a neutralizing antibody, suggesting its potential as a protective factor. The study suggests further research into the antibody's role could lead to an effective vaccine or passive antibody approaches.
The Ptolemy Project provides electronic health information access to African surgeons, helping them deal with regional health problems. Patient navigators also aid under-served populations in accessing cancer care and services, reducing disparities. Researchers debate providing antiretroviral therapy to HIV-infected trial participants.
A large trial suggests that male circumcision reduces HIV infection risk by 60%. If all men were circumcised, 2 million new infections and 300,000 deaths could be avoided. Long-term benefits would include saving 1.6-5.8 million lives after 20 years.
A randomized trial in Zimbabwe found that providing HIV testing at the workplace significantly increases uptake of voluntary counselling and testing. The study suggests that this approach could improve HIV testing rates in Africa, and that intermittent provision might be as effective as continuous testing.
Researchers successfully converted human embryonic stem cells into mature T-cells, a key step towards gene therapy for HIV and other diseases. The breakthrough could lead to the development of new treatments for severe combined immunodeficiency and other conditions.
The National Institute of Allergy and Infectious Diseases (NIAID) has announced the leadership for its newly restructured HIV/AIDS clinical trials networks. The six networks will focus on high-priority research areas, including developing an effective HIV vaccine and conducting translational research for new drug development.
Researchers identified distinct patterns of risk behavior among adolescent boys and girls, highlighting the need for targeted HIV prevention programs tailored to specific risk profiles. The study found that some high-risk adolescents have co-occurring mental health crises, substance abuse, and unsafe sex practices.
A recent study in Zambia found that abstinence messages were not enough to prevent HIV infection among unmarried women aged 13-20. Women from more conservative denominations abstained longer and had lower rates of condom use during first sex, highlighting the need for targeted prevention strategies.
Researchers at the University of Montreal have identified defective immune cells as a primary cause of fungal infections, such as candidiasis, in HIV patients. This discovery could lead to more effective treatments for these debilitating conditions.
A new international collaboration aims to identify genetic variations that affect the body's response to HIV. By analyzing patient cohorts from nine countries, researchers hope to pinpoint common genes influencing the disease progression and develop a vaccine targeting these responses.
OHSU researchers found that interleukin-15 (IL-15) restores tissue CD4+ T cells when given with antiretroviral drugs in SIV-infected monkeys. This discovery offers hope for effective therapies to boost HIV patients' immune systems.
Researchers at FSU have produced high-resolution images of the HIV virus, revealing its complex molecular surface architecture and enabling the development of more effective vaccines. The study, published in Nature, provides valuable insights into the virus's structure and behavior, which could lead to breakthroughs in vaccine design.
A cell biology study has identified distinct signaling pathways between neurokinin-1 receptors and substance P, which could be used to block HIV entry into macrophages. The findings also highlight the potential of a drug called aprepitant as an HIV treatment.
A new international study led by Dr. Myron S. Cohen at the University of North Carolina Health Care is investigating the early biology of HIV infection to develop an effective vaccine. The study, known as CHAVI-001, aims to identify people with HIV in its earliest stages and track their health to determine the transmission pairs.
Researchers found increased expression of immune response genes, including CCL5, in the brain, which may contribute to neurodegenerative symptoms and cognitive dysfunction in HIV-infected individuals. The study provides insights into the chronic phase of NeuroAIDS, a significant health problem affecting quality of life.
Researchers suggest that interactions between viral dynamics and structured treatment interruptions may cause high fluctuations in viral load, leading to virologic failure. This challenges the effectiveness of a single, structured treatment interruption therapy for all HIV patients.
AIDS researchers propose a global research agenda to study the impact of large-scale social changes, such as climate change, wars, and economic disruptions, on HIV transmission. The agenda aims to facilitate cross-disciplinary studies and address emerging issues in HIV/AIDS social research.
A University of Toronto study found HIV infection rates declining in South India, likely due to increased condom use and awareness programs. The study tracked data from antenatal clinics, showing a significant decrease in new infections among young adults.
A new model by Imperial College London researchers suggests that anti-HIV drugs alone are unlikely to stop the spread of HIV and may even increase infection rates due to improved health and behavior, highlighting the importance of prevention initiatives.
Researchers found PDT to be highly effective against drug-resistant bacteria and fungus, including S. mutans and Candida species, with minimal doses of light required to kill nearly all organisms.
A new study suggests that Tijuana's HIV infection rate may be close to three times higher than Mexico's national average, posing a significant public health threat. The researchers emphasize the need for urgent intervention and prevention strategies targeting high-risk groups.
A new study suggests that a vaginal gel containing the antiretroviral drug tenofovir may be effective in preventing HIV transmission in women. The gel produced mild or no side effects in both HIV-positive and negative women, but further studies are needed to evaluate its effectiveness.
A review of 12,000 Ugandan women found that male circumcision significantly reduced the likelihood of HIV infection among female partners. The study also found a reduction in other STDs, such as human papillomavirus and syphilis, but not gonorrhea or Chlamydia.
A study found that HIV subtype D is associated with a higher risk of early death from AIDS compared to subtype A. The researchers analyzed data from over 300 newly infected individuals in Uganda and found that those infected with subtype D had a significantly shorter average survival time.
Researchers found a significant decline in HIV prevalence in some groups, with a 49% drop for women aged 15-24 and a 23% drop for men aged 17-29. Behavioral changes, including delayed sex and fewer casual partners, are believed to be the main reason for this decline.
Scientists have successfully engineered lactic acid bacteria to produce a viricide that disables HIV, paving the way for potential use as a microbicide. The genetically modified bacteria will be tested in monkeys this summer, with human trials planned for three years.
The Strategies for Management of Anti-Retroviral Therapy (SMART) trial found that participants on continuous antiretroviral therapy had significantly lower risk of disease progression compared to those on episodic therapy. The study also revealed increased risks of cardiovascular, kidney, and liver diseases in participants on the drug ...
The Children's Hospital of Philadelphia has received a four-year, $6.7 million grant to study novel HIV therapy targeting neurokinin-1 receptors. The program aims to block the virus from immune cells, improve innate immune function, and reduce symptoms of depression associated with the disease.
Research examines how drug policy affects incarceration rates and HIV infection levels among African Americans, who make up 40% of those incarcerated and 50% of new HIV diagnoses. The study calls for further research on the corrections system's impact on HIV risk and recommends investigating specific components of drug policy.