A new study reveals that long-term non-progressors' immune cells can effectively contain HIV by stockpiling molecular weapons, enabling them to kill infected cells efficiently. The discovery advances understanding of the unique mechanisms behind this phenomenon and may inform the development of an HIV vaccine.
Despite progress, 33 million people live with HIV, and 2.7 million new infections occur each year. New treatments and prevention strategies are underway to combat the disease.
An experimental TB drug called PA-824 has been found to work by producing nitric oxide gas, which kills the bacteria. The discovery could lead to the development of new drugs against other disease-causing bacteria, as humans lack the bacterial enzyme needed for the drug's effect.
A study by NIAID authors identifies common determinants of disease emergence across time and place, including international trade, poverty, and climate change. The research highlights the need for a better understanding of these factors to prepare for future emerging diseases.
A landmark study found that early HIV testing and treatment in infants significantly improves survival rates, reducing mortality by 75% and HIV-related disease by four times. The study's results led to the World Health Organization's new guidelines for treating HIV-infected infants under age 1 immediately after diagnosis.
A study by NIAID scientist Theodore E. Nash found a strong association between brain tissue swelling and seizures in people infected with the parasitic tapeworm Taenia solium. Perilesional edema, a type of swelling around dead cysts, was seen in 50% of patients with seizures, suggesting a novel mechanism behind the condition.
A study found that disease-causing bacteria exploit the killing machinery of immune cells by increasing the production of an enzyme called arginase. This allows them to survive within macrophages, a type of white blood cell. The researchers observed improved outcomes in mice lacking this enzyme when infected with certain pathogens.
Researchers found a 71% higher risk of death for patients who deferred treatment compared to those who started HAART earlier. The study's findings suggest that initiating therapy at an earlier stage of HIV disease may improve patient outcomes.
NIAID scientists will present research on various infectious diseases, including noroviruses, Crohn's disease, and antibiotic-resistant infections. The talks aim to advance our understanding of these conditions and develop effective treatments.
Researchers found strong associations between intermittent HIV treatment and higher levels of inflammation and blood-clotting biomarkers, leading to a higher risk of death from non-AIDS diseases. Interleukin-6 (IL-6) and D-dimer levels rose significantly in the intermittent-treatment group after one month.
NIH scientists have identified a protein that enables T and B cells to interact, crucial for establishing long-lasting immunity. The finding may explain why individuals with a genetic defect suffer from lethal infections.
Researchers will analyze human blood samples to discover proteins that could serve as biomarkers of infectious diseases. The goal is to identify specific biomarkers present in infected individuals but absent in uninfected people, guiding diagnostics, therapies, and vaccines.
The new NIAID-funded programs aim to identify molecular features that distinguish bacterial and viral species, which may be targets for potential medical interventions. Researchers will use computational and experimental methods to analyze the dynamics of molecular components within microbes and their interactions with human cells.
Researchers have deciphered the complete genetic sequence of Plasmodium vivax, the leading cause of relapsing malaria. The findings provide new insights into the biology of vivax malaria and may lead to new tools for prevention and treatment.
The National Institute of Allergy and Infectious Diseases (NIAID) has awarded $25 million in grants to develop new diagnostics and treatments for radiation exposure. Researchers will focus on improving the diagnosis and treatment of individuals exposed to radiation, as well as investigating the effects of radiation combined injuries.
Researchers found that commensal bacteria DNA binds to receptors on immune cells, boosting protective T cells and clearing pathogens. This natural adjuvant mechanism enables the immune system to distinguish between harmful and beneficial microbes.
Researchers discovered that HIV-1 group M strain began spreading among humans between 1884 and 1924. The study suggests urbanization played a significant role in the pandemic's emergence. A genetic analysis revealed evidence of common ancestor around 1900, indicating an earlier origin than previously thought.
A study by Stanford University scientists reveals that type 1 diabetes may not be caused by bad genes but by how normal genes and gene variants are expressed. Researchers found differences in gene expression between two groups of mice, suggesting a role for environmental stimuli in triggering the disease.
A new study found that measuring exhaled nitric oxide in adolescents with asthma did not improve disease control. Despite initial improvements, participants who received treatment with exhaled NO monitoring had similar asthma symptoms and exacerbations as those without
Scientists have discovered a connection between Apobec3 and the production of neutralizing antibodies against HIV, potentially shedding light on why most people who contract the virus don't develop effective immunity. The study's findings could lead to new insights into developing HIV drugs and vaccines.
Researchers identify key areas of focus, including broadly neutralizing antibodies and innate immune responses, to develop an effective HIV vaccine. The authors express cautious optimism about the potential development of a vaccine, citing the need for significant scientific understanding of HIV disease.
The majority of deaths during the 1918-1919 influenza pandemic were not caused by the flu virus alone, but rather bacterial pneumonia that developed after the virus destroyed the cells lining the bronchial tubes. Comprehensive pandemic preparations should include provisions to stockpile antibiotics and bacterial vaccines.
Researchers discovered that Leishmania major parasites exploit the body's wound-healing response to sand fly bites, evading death and establishing long-term infection. Neutrophils play a critical role in the development of the disease, allowing parasites to survive inside them before escaping into macrophages.
NIAID is reshaping its research enterprise to broaden HIV vaccine discovery activities, with a focus on laboratory, non-human primate, and clinical researchers. The Institute plans to develop new initiatives to support individual investigator-initiated grants in HIV vaccine discovery and other tactics to interrupt HIV transmission.
The National Institute of Allergy and Infectious Diseases has decided not to conduct the PAVE 100 HIV vaccine trial, but will consider a smaller study to determine if the VRC vaccine regimen significantly lowers viral load. The decision comes after analyzing the STEP HIV vaccine study results, which found increased numbers of HIV infec...
Exhausted B cells hinder HIV-infected individuals' ability to clear the virus from their bodies. Researchers found that these cells produce low-quality antibodies, making it challenging to develop an effective vaccine.
Twelve investigators receive $5 million in grants to study food allergy causes, treatment, and prevention. The initiative aims to improve understanding of the condition and ultimately end its limitations on lives.
The NIAID Vaccine Discovery Branch aims to remove fundamental obstacles to achieving a safe and effective HIV vaccine by focusing on the development and sharing of new knowledge. The branch will monitor scientific developments, identify gaps in knowledge, and promote research collaborations.
Researchers have identified a key role for fish-based fatty acid molecule RvE1 in resolving airway inflammation and promoting its resolution in mice. The study provides insight into the potential therapeutic use of RvE1 in asthma prevention.
Dr. Anthony S. Fauci, director of NIAID, will be honored with the Presidential Medal of Freedom for his decades-long work on HIV/AIDS research and treatment. The award recognizes his efforts to advance human knowledge and bring hope and healing to millions worldwide.
Researchers found that alum stimulates clusters of proteins called inflammasomes, which respond to stresses such as infection or injury by releasing immune cell signaling proteins. This discovery provides evidence for the role of Nalp3 inflammasome in alum's adjuvant action.
The NIAID research program aims to uncover mechanisms to enable scientists to outwit HIV and stimulate the production of long-lasting antibodies that can neutralize many strains of the virus. By understanding how B cells recognize antigens and producing broad-spectrum antibodies, researchers hope to develop a preventive HIV vaccine.
Dr. Fauci outlines the peaks and valleys of HIV/AIDS research, from initial diagnosis challenges to breakthroughs with protease inhibitors and combination therapies. He emphasizes the need for continued research into a cure and prevention through vaccine development.
Researchers have developed a rapid way to produce human monoclonal antibodies against the flu, overcoming technical barriers that slowed their development. The new technique could potentially be used for diagnosis and treatment of other infectious diseases.
The National Institute of Allergy and Infectious Diseases (NIAID) has outlined a research agenda to combat drug-resistant tuberculosis, a major public health concern. The agenda focuses on developing reliable diagnostics, testing new drugs, and understanding the biology of TB-causing bacteria.
Researchers analyzed gene sequences of seasonal influenza virus samples collected from temperate regions and found that new strains emerge annually from the tropics. This understanding can help public health officials develop more accurate flu vaccine strategies.
A new study finds that air pollution from sulfur dioxide, fine particles, and nitrogen dioxide can cause decreased lung function and increase asthma symptoms in inner-city children. The study suggests that current air quality standards may not be sufficient to protect these vulnerable populations.
Job's syndrome sufferers lack Th17 cells, a type of infection-fighting white blood cell, leading to recurrent and severe infections. The study reveals the importance of Th17 cells in protecting against Staphylococcus bacteria and certain fungal infections.
A new study has discovered that specific pre-existing IgE antibodies are the primary cause of severe allergic reactions to cancer drug cetuximab. The research found these antibodies were more prevalent in certain regions of the US, including Tennessee, Arkansas, and North Carolina, which have higher rates of anaphylactic reactions.
The National Institute of Allergy and Infectious Diseases (NIAID) is addressing the growing challenge of antimicrobial resistance through a multifaceted research approach. The institute is investing over $800 million annually in basic and translational research to understand the causes, consequences, and treatments of antimicrobial dru...
Researchers at NIH have successfully treated a patient with a rare disorder using cancer drug imatinib, which is also effective against systemic mastocytosis and chronic basophilic leukemia. The study's findings offer new treatment options for patients with these complex conditions.
Researchers found that HIV persists in the gut despite long-term antiretroviral therapy, which failed to eradicate the virus from gut-associated lymphoid tissue. B-cell abnormalities also persisted, with memory B cells failing to recover after treatment.
Researchers have identified a new cellular receptor, integrin alpha 4 beta 7, that plays a crucial role in the early stages of HIV infection. The receptor, which guides immune cells to the gut, is targeted by the virus's gp120 protein, facilitating its entry into host cells.
Scientists have discovered that immune cells confront viruses just inside the lymph node, not deep within the organ. This breakthrough could help design effective anti-virus vaccines against deadly viruses like HIV. The study sheds light on how the immune system operates during a viral infection.
A candidate malaria vaccine showed strong immune responses in a small clinical trial conducted in Mali, where it was tested on 40 adults and is now being expanded to 400 children. The trial's promising results could provide new hope for fighting the disease that claims over 1 million lives annually.
Recent studies from NIH scientists resolve debate about CA-MRSA molecular evolution, revealing a single strain USA300 as the primary cause of community-associated methicillin-resistant Staphylococcus aureus infections. The research also sheds light on how MRSA evades the human immune system and spreads rapidly.
Dengue fever, a mosquito-borne illness, is becoming increasingly prevalent along the U.S.-Mexico border and in Puerto Rico. The NIAID experts warn that widespread dengue cases in the continental US are a real possibility due to the lack of effective treatments or vaccines.
Travelers to tropical regions are at risk of contracting neglected tropical diseases, including filarial infections that can cause elephantiasis and river blindness. The GeoSentinel Surveillance Network collected data on traveler diagnoses, revealing immigrants from endemic regions were most likely to acquire these infections.
The National Institutes of Health (NIH) recognizes the contributions of researchers and managers in the fight against HIV/AIDS. Since the first cases of AIDS were reported, NIH has established a comprehensive trans-NIH research effort to understand HIV biology, develop effective therapies, and prevent new infections.
Scientists discovered three biological classes of malaria parasites with distinct metabolic states, including one linked to patient symptoms. The findings suggest a possible correlation between parasite behavior and disease severity.