Articles tagged with Human Immunodeficiency Virus
A study in South Africa found that a new treatment approach, including isoniazid and cotrimoxazole, reduced tuberculosis incidence among HIV-infected employees by 32%. The intervention was part of a clinic established in 1999 to provide specialist care for HIV-infected employees.
Researchers found that HIV protease inhibitors (PIs) can inhibit programmed cell death in mouse models with hepatitis, shock, and stroke. PIs maintain mitochondrial integrity to prevent apoptosis, suggesting potential uses for related compounds in non-HIV disorders.
ID physicians and expert general medicine physicians outperform non-expert generalists in treating patients with HIV. Key findings include improved viral load control and increased flu vaccination rates among expert groups.
Scientists have discovered that human cells use RNA silencing to defend against HIV, a phenomenon previously unknown in mammals. The discovery of a novel siRNA sequence that targets the HIV protein Tat may lead to the development of new RNAi-based drugs to combat the virus.
A new surgical technique called 'sharpless' surgery uses laparoscopy, electrocautery, and skin clips to reduce the risk of infection. The study found that blood-borne pathogens are associated with certain operations and that inexperienced surgeons-in-training are at greatest risk.
Researchers at Duke University Medical Center discovered that HIV vaccines may have failed due to the induction of self-reactive antibodies, which can destroy the body's own tissues. The team proposes a new approach to develop HIV vaccines by redirecting the immune response from innate B cells to adaptive B cells.
The study found that mixed breast feeding quadrupled HIV transmission, while predominant breastfeeding increased it by 2.6 times compared to exclusive breastfeeding. Early introduction of non-human milks and solid foods increases the risk of HIV infection for babies of HIV-positive women.
Researchers at UCLA have discovered a molecule on immune cells that plays a critical role in the sexual transmission of HIV. Blocking this molecule could prevent HIV from spreading infection, potentially reducing its ability to infect new individuals.
Researchers identified two strains of lactobacillus that can trap and block HIV, potentially providing a safe and cost-efficient method for preventing its spread. The technology could be used to protect infants and women in poor countries via fermented foods or feminine products.
Scientists at Cold Spring Harbor Laboratory identified 130 genes that affect the replication of retrovirus-like elements in yeast. These genes have clear relatives or homologs in the human genome, providing a rich source for candidate host genes to develop new anti-retroviral therapeutics.
Scientists found that a small form of APOBEC3G repels HIV, while a large form is ineffective; blocking the small form makes resting cells susceptible to infection. The discovery shifts the paradigm on how HIV infects T cells.
Research found that moderate aerobic exercise significantly improves cardiovascular and autonomic profiles in HIV+ subjects, compared to those without HIV. The study suggests that exercise may be a cost-effective supplemental therapy for HIV patients.
The study recommends routine voluntary testing to diagnose undiagnosed HIV cases, especially among high-risk groups. This approach aims to provide counseling on prevention and treatment options.
A recent study by Emory University Health Sciences Center found that patients newly diagnosed with HIV are more likely to enter outpatient care with case management. The study showed that 78% of patients with case management visited an HIV clinician at least once within 6 months, compared to 60% in the standard-of-care group.
A study found that HIV-positive women with normal cervical cytology and negative HPV test results had a similar low cumulative incidence of abnormal lesions compared to HIV-negative women. The authors suggest considering psychosocial costs of positive HPV tests in these women before adjusting screening intervals
A recent review found a strong relationship between psychological problems, particularly depression, and insomnia in HIV patients. Healthcare workers should prioritize diagnosing and treating anxiety and depression to prevent insomnia and its disabling effects on patients with HIV.
A patient with a drug-resistant form of HIV was identified, exhibiting rapid progression to AIDS. The case highlights the need for intensified prevention efforts, particularly among high-risk groups such as men who have sex with men and intravenous drug users.
A collaborative study by UCL scientists found that HIV-1 subtype B spread through at least six separate transmission chains in the UK, contradicting the prevailing belief of a single initial entry. The study suggests changes in sexual behavior and lack of impact from antiretroviral therapy may have slowed the epidemic growth.
Scientists attribute high frequency of CCR5-Ä32 mutation in Scandinavia and Russia to protection from lethal, viral haemorrhagic fevers that occurred during the Middle Ages. The disease provided selection pressure for the mutation, which explains its highest frequency in these regions today.
The study examines lessons learned from Africa's first public ARV treatment clinic in Botswana, highlighting the need for consistent care and ongoing training for staff. The clinic has successfully treated thousands of patients, but challenges persist in staffing and infrastructure.
A Vanderbilt University Medical Center study has identified a crucial early step in the HIV assembly process, revealing how the Gag protein is directed to the multivesicular body. The discovery could lead to the development of new drugs targeting this step, potentially blocking viral replication.
A recent Emory University study found that HIV infection is not an independent risk factor for severe heart disease in patients who undergo cardiac catheterization. Lifestyle and traditional cardiac risk factors, such as hypertension and high cholesterol levels, play a larger role in the development of CAD.
Researchers at Mount Sinai School of Medicine discovered that alpha-defensin-1, a protein found in cells, can directly inactivate HIV virus and block infection in vulnerable cells. The findings offer insight into the function of alpha-defensin-1 on both the virus and the cell, potentially leading to new avenues for prevention and therapy.
A recent study found that youth with HIV who were treated with highly active antiretroviral therapies (HAART) between 1999 and 2000 reported having more sexual partners, unprotected sex, and drug use compared to those treated before 1996. The researchers suggest targeted interventions are needed to address these risk behaviors.
Researchers from Johns Hopkins Medicine found a second reservoir of HIV that harbors unique viral variants, suggesting lifelong treatment is necessary to prevent re-emergence. The archival virus has not mutated to become drug-resistant, according to recent findings.
A study found that PRO 2000 gel reduced HIV and HSV infectivity by at least 1000-fold, with no significant inflammatory response. The results suggest a potential safe and effective vaginal microbicide for preventing sexually transmitted infections.
Researchers have elucidated the structure of gp120 before its shape change, providing crucial insights into how the protein binds to the CD4 receptor and enables HIV membrane fusion. This knowledge may lead to the development of new compounds that inhibit this shape change, offering a promising route for HIV treatment and prevention.
Researchers analyzed data from a three-year study in rural Zimbabwe and found no correlation between contaminated needle use and increased HIV transmission. The study collected data from over 1,800 participants and excluded injections as a major transmission route.
A study led by Drs. Dennis R. Burton and Ian A. Wilson identified the specific amino acids on gp41 that 4E10 interacts with, revealing its unique ability to target a conserved region near the surface of the virus. This research advances the quest for an HIV-1 vaccine, providing valuable insights into broadly neutralizing antibodies.
Researchers at The Scripps Research Institute have identified an antibody called 4E10 that can neutralize nearly 100 different HIV strains. This breakthrough could lead to the development of a more effective HIV vaccine by targeting this specific epitope.
Researchers found that alpha-defensin-1 directly inactivates HIV when serum levels are low, while also acting on vulnerable cells to block infection. The study provides a basis for developing defensin-like drugs to prevent and treat HIV.
A study in Senegal found that migrants' social context influences their sexual behavior and risk of HIV transmission. In rural areas, strict social control and religion may encourage migrants to adopt safer sex practices upon return. The study suggests that migration is not a major contributor to HIV spread in Senegal.
UCLA researchers develop gene therapy approach using modified HIV to target P-glycoproteins on cancer cells, minimizing side effects and maximizing therapeutic effectiveness. The method shows promise for controlling cancer and other diseases.
Routine HIV screening every three to five years is cost-effective in the US, according to Yale researchers. Frequent screening in high-risk populations could produce life expectancy gains at comparable costs to other chronic condition screenings.
A Stanford study found that early HIV screening reduces annual transmission by 21% and lengthens life by 1.5 years for those with HIV infection. Routine screenings are cost-effective compared to other commonly accepted programs, suggesting expanded HIV counseling, testing, and referral in the US.
A new study recommends expanding routine HIV screening to settings with low prevalence rates due to its cost-effectiveness. The study found that even at low prevalence levels, regular testing can provide important health benefits. Additionally, the researchers suggest that screenings should be expanded to reduce the transmission of the...
A study by Mark A. Schuster found that nearly 40% of HIV-infected parents reported avoiding interactions with their children 'a little' due to fears of contagion, while 27.9% avoided certain interactions like hugging or kissing on the lips altogether.
A Family's Guide to Living with HIV is a comprehensive resource providing detailed information on the disease, its treatment, and its impact on daily life. The book also focuses on supporting psychological concerns, nutrition, education, and social activities for patients and their families.
A recent US study reveals that a significant portion of African Americans hold conspiracy theories about HIV/AIDS, which may frustrate efforts to combat the epidemic. Public health officials need to address these concerns and develop culturally sensitive strategies to reach at-risk populations.
A recent study found that HIV/AIDS conspiracy beliefs are associated with negative attitudes towards condoms and inconsistent condom use among African American men. The study suggests that addressing these beliefs is crucial in changing the disproportionately high rate of HIV and AIDS in this community.
A recent study found that male circumcision significantly reduces the risk of HIV transmission from women to men, with uncircumcised men facing a more than two-fold increased risk per sexual act. The study's results provide new insights into the rapid spread of HIV in settings where circumcision is not common.
Researchers identified adherence to medication regimen as key factor in developing HIV drug resistance. High adherence levels were associated with faster development of resistance, emphasizing the importance of strict medication adherence in maintaining treatment efficacy.
Researchers at Thomas Jefferson University have discovered that interleukin-7 (IL-7) can stimulate latent HIV viruses, making them vulnerable to drugs and the immune system. The new technique may lead to improved treatments for HIV infection and could be a step towards complete viral eradication.
The World Health Organization's "3 by 5" initiative aims to treat 3 million HIV-infected individuals in poor and middle-income countries by the end of 2005. Critics argue that this approach overlooks prevention strategies, is cash-strapped, and lacks country ownership.
The US government has awarded grants to support HIV/AIDS research and treatment in resource-limited countries, including Cambodia, Peru, Thailand, and Russia. The grants aim to develop clinical research centers and evaluate new treatments for co-infections with tuberculosis.
Researchers found that custom-designed facial implants provided excellent aesthetic postoperative outcomes for 22 patients with facial wasting syndrome. The use of high-resolution CT scans enabled precise modeling and sizing of implants, leading to stable and long-lasting results.
A study found that African-American patients treated by white doctors receive HIV medications nearly four months later than those treated by African-American doctors. Better communication and trust between patient and doctor of the same race may explain these differences.
The study demonstrates the value of clinical cutoffs in evaluating HIV drug resistance information. Clinical cutoffs based on a large outcomes database provide physicians with clinically relevant resistance information.
Researchers found evidence that HIV co-opts human enzyme DDX3 to transport its genetic material out of the cell nucleus. The discovery provides an attractive target for drug development and could lead to a new type of HIV drug that blocks viral replication without causing harm to human cells.
A Rutgers University nursing professor is developing digital video vignettes to reduce HIV sexual risk behavior. The project involves conducting focus groups with young women and men, analyzing their insights, and creating short videos on trust, pressure, and high-risk behaviors.
Researchers found that nevirapine significantly increases HDL cholesterol levels more than efavirenz, making it a preferable option for HIV-infected adults with increased cardiovascular risk. This study suggests that considering individual factors beyond cardiovascular risk can lead to more personalized treatment decisions.
Researchers have identified a potential target for preventing HIV transmission through vaginal membranes. A modified chemokine called PSC-RANTES was found to be effective in blocking SHIV transmission in rhesus macaques, offering hope for the development of a topical agent to prevent HIV infection in humans.
A new experimental drug called PSC-RANTES has shown promising results in preventing vaginal simian HIV transmission in monkeys. The study found that the highest dose of PSC-RANTES protected all five recipients from SHIV infection, suggesting a potential key target for strategies to prevent vaginal HIV transmission.
HBOCs increase tissue perfusion and oxygen delivery, offering a temporary solution for situations with massive hemorrhaging or blood shortages. They can effectively increase the usable blood supply in cardiac surgery, creating a 20% increase in supply.
Researchers found dopamine transporter injury in HIV dementia patients, suggesting a new direction for treatment. The study suggests that viral suppression may lead to recovery of deficits in the dopamine system.
The new guidelines cover prevention and early diagnosis of chronic conditions, such as diabetes and heart disease, and provide evidence-based primary care interventions for people living with HIV. The guidelines also focus on caring for women and children with HIV, making them a valuable resource for a wide range of healthcare providers.
Basic research on HIV is leading to new therapies that deny initial entry into cells. Fast-moving research on naturally occurring antiviral factors is opening the way for a new class of anti-HIV drugs.
Researchers mapped where three retroviruses integrate into human DNA, finding unique patterns for each. This discovery has implications for better-engineered gene therapies and new HIV drugs.
A study found prednisolone to be ineffective in treating HIV-associated pleural tuberculosis, increasing the risk of life-threatening cancer. The drug improved symptoms but showed no long-term benefits for patients without HIV infection.
A government policy providing free access to potent antiretroviral drugs has significantly reduced the HIV transmission rate in Taiwan, with an estimated decrease of 53%. The study, led by Chi-Tai Fang and Jung-Der Wang, used public health surveillance data to evaluate the impact of the policy on the country's HIV epidemic.