Articles tagged with Human Immunodeficiency Virus
Researchers estimate that lifting the ban on HIV-infected organ donation could provide transplants to 500 patients annually. The study suggests that this change would not only benefit HIV-positive patients but also reduce waiting times for non-HIV infected patients.
Researchers discovered that HIV envelope protein complex can be exposed to raise more broadly cross-reactive antibodies against HIV. This finding could lead to the development of effective vaccines against HIV and AIDS.
Elevated p21 protein levels in natural HIV controllers effectively suppress key viral life cycle steps. This ability is associated with increased p21 expression and may be linked to shared mechanisms of immune defense against cancer and HIV.
A telemedicine program called Hospital VIHrtual has been shown to provide comprehensive control over HIV-infected patients in medical, pharmaceutical, psychological, and quality of life aspects. The virtual hospital allows for efficient management of stable HIV patients, reducing costs and time spent on travel and waiting for visits.
The American Thoracic Society's report highlights the evolving landscape of HIV-associated pulmonary disease, including increased chronic lung diseases and new syndromes associated with antiretroviral therapy. Clinicians face a wider range of HIV-associated diseases, emphasizing the need for continued research and treatment modalities.
A study published in PLoS Medicine found that intensive adherence counseling significantly reduces poor adherence and virologic treatment failure in patients with HIV. Patients receiving counseling were 29% less likely to experience poor adherence, and those receiving early counseling had a 59% lower risk of viral failure.
A 6-month daily dose of the antiretroviral drug nevirapine significantly reduced HIV transmission through breast milk to infants of HIV-infected mothers. The extended regimen achieved a 54% reduction in HIV transmission risk compared to six-week treatment, while preserving health benefits of extended breastfeeding.
Researchers have discovered that adding one or two drugs to the standard ZDV treatment can significantly reduce the risk of HIV transmission from mother to infant. The study found that treatment with two and three drug regimens reduced HIV transmission by more than 50%.
Researchers investigated the risks of starting antiretroviral therapy in HIV-infected patients with TB, finding that early ART may not reduce AIDS risk for those with fewer than 250 CD4+ T cells. Microbicide studies showed promise with rectally applied tenofovir gel reducing HIV infection risk in men and women.
A modeling analysis suggests that a combination of methadone substitution therapy and anti-retroviral treatment would have the greatest effect on reducing new infections and improving quality of life. Providing drug-substitution to just 25% of intravenous drug users today could lower HIV prevalence considerably.
A randomized controlled trial found that intensive adherence counseling reduces poor adherence and virologic treatment failure by up to 59%. Counseling also had no significant effect on mortality or CD4 counts. The study suggests that adherence counseling should be implemented in HIV clinics caring for large numbers of patients.
A Phase II trial found that tenofovir gel achieved a more than 100-times higher concentration of active drug in vaginal tissue compared to the oral tablet. Most US women preferred the oral tablet, while African women favored the gel and tablet equally. The study's findings will be better understood in the context of VOICE results.
Researchers have reformedulated tenofovir gel to make it safe and effective for rectal use, with laboratory tests showing reduced harm to the lining of the rectum and comparable HIV protection. The reformulated gel is now being tested in clinical trials to address concerns about comfort and side effects.
A University of Missouri project empowers women living with HIV to make changes by taking pictures and documenting their lives. The photos help identify social, mental, and physical challenges and possible solutions, enabling the women to resolve issues such as difficult housing situations.
Elite suppressors have lower levels of integrated HIV DNA and more effective killer T cells, making them resistant to antiretroviral therapy. Researchers speculate that therapeutic vaccinations targeting elite suppressor-like immune responses may be effective against the treatment-resistant latent reservoir.
Researchers have discovered a genetic feature of early-transmitting HIV that enables it to bind tightly to CD4+ T cells through integrin alpha-4 beta-7. This binding enhances the ability of HIV to complete sexual transmission and establish infection in an individual.
Scientists have designed a new type of nanoparticle that can deliver synthetic versions of proteins normally produced by viruses, eliciting a strong immune response comparable to live virus vaccines. The nanoparticles consist of concentric fatty spheres that can be used to develop vaccines against cancer and infectious diseases.
A Michigan State University researcher is conducting a cohort study to analyze seizures in HIV-positive patients and examine the effects of antiepileptic drugs on antiretroviral medicines. The study aims to determine whether dual treatment increases the risk of drug failure, AIDS, or death.
A vaccine that induces antibodies in vaginal tissue is sufficient to protect monkeys from HIV exposure, challenging traditional blood-based immunity approaches. The study found mucosal antibodies can block viral entry without neutralizing effects in the bloodstream.
Researchers at Princeton University used mathematical concepts to discover new drugs for HIV and other diseases by calculating physical properties of biological molecules. The technique identified several potential new drugs that were effective against strains of HIV, offering a promising alternative to existing treatments.
A new study published in Clinical Infectious Diseases found that 36 patients out of 1,800 HIV-infected men were diagnosed with hepatitis C, with 25% having a history of injection drug use. The study emphasizes the need for continued screening and awareness of risk behaviors among HIV-infected individuals.
A new study found that protease inhibitors (PIs) and non-nucleoside reverse transcriptase inhibitors (NNRTIs) are equally effective as initial treatment for children with HIV, delaying switch to second-line drugs does not impact long-term outcomes. Regular monitoring of viral load is crucial to prevent resistance.
Scientists have discovered that HIV uses the molecule rNTP to replicate inside macrophages, allowing it to evade the immune system. By targeting this molecule, researchers may be able to develop new drugs to stop the virus in its hiding spot within the human immune system.
Research suggests that people with HIV are up to three times more likely to experience a stroke than those without the condition. The study found a 67% increase in stroke hospitalizations among people with HIV, despite a decline in overall stroke rates.
Researchers found a significant rise in stroke diagnoses among HIV-infected patients between 1997 and 2006, with ischemic strokes being the primary cause. The study suggests that HAART therapy may be linked to an increased risk of stroke due to metabolic complications, highlighting the need for further research.
Researchers at Scripps Research and UVa determine the structure of HIV's protein package, also known as the capsid. The detailed description provides a roadmap for developing drugs that can disrupt its formation and prevent infection. The study uses X-ray crystallography to reveal the flexibility and mobility of the capsid's components.
A simple, standardized TB screening rule has been developed for resource-constrained settings to identify people living with HIV who need further investigation for TB disease. The absence of common symptoms such as cough, fever, and night sweats can be used to identify individuals with a low probability of having TB disease.
The Scripps Research Institute team created a library of 50 synthetic compounds from natural Japanese-plant compounds, including one that shows great promise in inhibiting HIV replication and fighting inflammation. The compound has been identified as a promising lead for potential use as an HIV-fighting drug.
Researchers studied TB detection methods in western Kenya and found that passive case finding is inadequate due to the high prevalence of HIV. Intensive methods like sputum culture are needed to diagnose TB earlier and more accurately, especially among men and those with prior TB treatment.
Researchers at the University of Minnesota have discovered how HIV binds to and destroys APOBEC3F, a specific human antiviral protein. By converting this protein to a more effective antiviral agent, they found that shielding of a common feature shared by related proteins may yield similar outcomes.
Researchers found that patients who developed immune reconstitution inflammatory syndrome (IRIS) after starting HIV therapy had specific biomarker patterns in their blood. The study suggests that prediction of IRIS or death may be possible with measurement of pre-antiretroviral therapy serum biomarkers.
The study found that earlier initiation of antiretroviral therapy increased 5-year survival from 80 to 87% and showed substantially improved early clinical outcomes. In settings where ART initiation at 350/μl is already available, switching stavudine to tenofovir offers clinical benefit and is less costly than adding second-line regimens.
Researchers have made significant breakthroughs in understanding how HIV mutates and evades treatment, providing new insights into developing better tests and treatments for patients. The study found that a specific mutation allows the virus to resist two main families of drugs, highlighting the need for tailored therapies.
A new nonverbal response card has been developed to improve the accuracy of data collection on teenage sexual behavior. The device reduces reporting bias and provides confidential responses, resulting in higher accuracy rates for HIV risk assessment.
The report features nearly 500 women from HIV-affected communities who shared their thoughts on medical male circumcision for HIV prevention. Women expressed excitement but also concerns about its benefits and risks, highlighting the need for education campaigns tailored to women's experiences.
Stephanie Willerth's research on HIV has significantly advanced understanding of the virus and its resistance to medications. Her study of over 15,000 different versions of the virus has led to the identification of specific genes resistant to drugs, paving the way for more effective treatments.
A new cell-based assay system, EASY-HIT, has been developed to identify HIV inhibitors and measure their potency. The technology, led by Professor Ruth Brack-Werner, can also detect anti-HIV activities in raw plant extracts and has already discovered novel sources of antiviral activities.
Global heterogeneity in HIV-1 strains affects properties like viral fitness and transmissibility. New forms will continue to emerge, necessitating updated prevention and control strategies.
Researchers found that certain mutations in the virus render it ineffective against drugs, but also impair its ability to kill immune cells. This discovery may lead to a new diagnostic tool and more effective treatments for HIV patients.
Researchers have found that the HIV virus triggers an immune response in CD4 T cells due to incomplete reverse transcription, leading to cell death. The study's findings suggest that targeting the cell sensor responsible for this response could lead to new treatment strategies.
Researchers found that HIV protease inhibitors block glucose transport, leading to insulin resistance. The discovery provides potential for safer antiviral drugs and better understanding of glucose transport in health and disease.
A new study reveals how HIV evades the body's natural defense system by hiding a critical protein from natural killer cells. The research opens up a promising new target for HIV drug therapies.
Early and abundant HIV antibodies are ineffective in blocking infection due to their inability to recognize the virus until it has invaded a healthy cell. The study reveals that the virus creates two versions of the 'Achilles heel' that different types of antibodies need to target, making effective defense challenging.
A strong link has been found between depression and risky sexual behaviors in South African youth, with depressed individuals more likely to engage in transactional sex and experience relationship violence. Researchers recommend routine screening for depression to reduce HIV risk in the region.
Researchers at Baylor College of Medicine and UT Austin used molecular evolution analysis to identify the source of HIV infections in two criminal cases. They found that a single virus, with up to 75% of infections resulting from a single ancestral strain, could be linked to the infected individuals.
Research reveals alcohol's far-reaching consequences, including weakened immune systems, impaired bone growth, and increased risks of HIV transmission and poor surgical outcomes.
A new study finds that weekly SMS check-ins increase the likelihood of patients with HIV having undetectable viral loads, leading to better health outcomes and reduced transmission. The text-message support system showed a 12% increase in undetectable levels among participants.
Researchers propose a novel approach to prevent both unintended pregnancies and HIV transmission by utilizing nanoparticles that carry melittin, a toxin derived from honeybee venom. The nanobees will target and destroy sperm and HIV cells through a fusion process.
The Miriam Hospital will conduct research on HIV testing, treatment, and linkage to care for prison inmates, with a focus on improving follow-up care after release. The hospital aims to address the disproportionate number of HIV-positive individuals in the criminal justice system.
A new study by Johns Hopkins researchers reveals a large burden of syphilis infection and high-risk behaviors among male clients of female sex workers in Sichuan province. The study found that 30% of these males practiced consistent condom use, highlighting the need for effective interventions to prevent HIV transmission.
Research reveals that tiny variants in a protein called HLA-B are associated with immune system's ability to control HIV infection. The study identifies five amino acid sites critical to the protein's function, providing insights into the genetic basis of natural immunity.
A study led by Allison Webel aims to promote lifestyle changes among women with HIV, testing the effectiveness of a self-management intervention. The research targets sleep, exercise, personal time, and spirituality habits, aiming to empower individuals to take an active role in their treatment.
A UCLA team is studying ways to get HIV-positive men released from LA jails into medical care and on sustained treatment. The randomized controlled trial will assess an innovative peer-navigation intervention to improve health outcomes and prevent transmission.
Researchers will investigate the complex interactions between alcohol consumption and HIV, including brain and liver damage, adherence to antiretroviral medications, and safe sex practices. The goal is to determine whether individuals need to stop or reduce their drinking.
A new research method has provided unprecedented clarity on the behavior of the HIV protein Gag, which plays critical roles in the assembly of the human immunodeficiency virus. The study reveals new conformations of the protein and offers potential avenues for developing antiviral drugs.
The world's third rectal microbicide trial has been launched in Pittsburgh, Pennsylvania, to test the safety and acceptability of tenofovir gel. The study aims to determine if rectal use of the gel reduces the risk of HIV among men and women who engage in receptive anal intercourse.
Researchers testing tenofovir gel's rectal safety in a new trial led by the NIH-funded Microbicide Trials Network. The study aims to determine if rectal use of tenofovir gel is safe and effective in preventing HIV transmission among men and women who engage in receptive anal intercourse.
A six-session school-based program in South Africa reduced rates of unprotected sex and sex with multiple partners among sixth-graders. The intervention also had a positive impact on HIV/STD prevention behaviors, highlighting the importance of targeted interventions for young adolescents.
A mobile van approach to hunt down active cases of tuberculosis significantly outperformed door-to-door visits, detecting 255 smear-positive patients vs. 137 through door-to-door visits. This intervention led to a 43% decline in undiagnosed culture-positive TB in the community.
Researchers at Rockefeller University have made two fundamental discoveries about broadly neutralizing anti-HIV antibodies, which effectively keep the virus at bay. They found that most antibodies bind to their target in a polyreactive manner, enhancing overall affinity by binding non-specifically to the virion.