Researchers created a virtual model of the human immune system to study M. tuberculosis, a bacterium that causes TB. The computer model revealed key findings on granuloma formation and the immune response, shedding light on why some people fight off infection while others get sick.
A recent OHSU study found that Parkinson's caregivers experience dramatic declines in physical and mental health over 10 years, with increased strain and depression. The study identified predictors of caregiver risk, highlighting the importance of supporting family caregivers to improve patient outcomes.
A study led by Duke University Medical Center researchers found African-Americans have a significantly lower response rate to treatment for chronic hepatitis C. Only 19% of African-American patients responded to the drug combination, while 52% of non-Hispanic white patients achieved a sustained virologic response.
Researchers at the University of Uppsala developed PQL, a diagnosis and treatment program that leads to improvement in stress management and overall well-being. The program uses psychosocial, biological, and production measures and has been shown to have a clear impact on sleep, concentration, and physiological factors.
A study published in Nature found that thick marine beds of siderite suggest early high carbon dioxide levels in the atmosphere. The research suggests that the atmospheric carbon dioxide concentration was more than 100 times greater than today, causing acidic ocean water and maintaining liquid oceans.
Researchers found that several plant materials and extracts inhibited the growth of harmful bacteria when introduced into bird nests. These findings suggest that parent birds may be using medical botany as a form of effective home nest security to protect their offspring from disease.
A new, low-cost hand-held magnetic surgical tool has been developed to reduce X-ray exposure during long bone repair surgeries. The device uses electronic sensors instead of X-rays to locate screw holes, making the process precise and reducing radiation exposure for surgeons.
Researchers found that antibiotic therapy can promote allergic airway responses in mice, particularly when Candida albicans colonization occurs. The study suggests a potential link between antibiotic use and human allergies.
Researchers at Saint Louis University have demonstrated that the smallpox vaccine candidate LC16m8 protects mice from a virus related to smallpox when delivered via aerosol. The study aims to develop a safer smallpox vaccine for bioterrorism threats.
A one-year study involving 539 adolescents aged 12 to 16 found that Xenical significantly reduced fat mass, waist circumference, and BMI compared to lifestyle changes alone. The medication was well-tolerated, with similar adverse events reported as in adults.
Leroy Hood is being honored with the 2004 Biotechnology Heritage Award for his groundbreaking work in systems biology and medicine. He pioneered the techniques that enabled the rapid sequencing of the human genome, revolutionizing genomics.
Researchers discover tiny microbes in ancient Greenland glacier that are smaller than common bacteria and can survive extreme conditions. These ultra-small cells have been found to be among the uncultured majority of microbes on Earth and hold secrets to their survival mechanisms.
Researchers at the University of Illinois Chicago discovered a gene, CREB, that regulates brain function during development and learning. Mice with only one copy of the CREB gene exhibited increased anxiety-like behaviors and consumed more alcohol than normal littermates.
A recent study published in JAMA found that prenatal cocaine exposure was not associated with lower full-scale IQ scores, but did show specific effects on information, arithmetic, and object assembly. Children in foster or adoptive care showed improved cognitive outcomes despite higher levels of cocaine exposure.
Researchers have developed an iron oxide nanoparticle that can outline brain tumors and other lesions for up to five days under MRI, providing a new imaging marker. This contrast agent has the potential to assist in image-guided brain surgery and improve diagnosis of neurological disorders.
Researchers found that antibiotics can alter the gut microbiome, leading to increased lung sensitivity to allergens. This disruption can trigger a hyperactive immune response, producing allergy symptoms or even asthma. The study suggests that maintaining a healthy balance of gut microbes is crucial in regulating the immune system.
A recent MIT study explores the effects of terrorism on global supply chains, highlighting the importance of vulnerability maps and flexible supply chains in minimizing disruption. The research also emphasizes the need for corporate cultures to prioritize communication and security.
A study by the University of Washington found that late-night comedy viewership had a significant impact on George W. Bush's favorability rating during the 2000 presidential campaign. The study, known as the 'Letterman Effect,' showed that Bush's ratings increased among late-night viewers after appearing on David Letterman's show.
Researchers found that histamine cell activity continues during cataplexy, while norepinephrine and serotonin cell activity ceases, leading to loss of muscle tone. The study sheds light on the biological causes of narcolepsy and may aid in developing drugs to induce sleep and increase alertness.
Researchers found that the piriform cortex was activated when subjects saw objects previously associated with odors, confirming models of memory recall. The hippocampus draws on these sensory components to reconstruct rich memories.
A new study suggests that aspirin reduces breast cancer risk by 20% among women with ER-positive tumors, a type of postmenopausal breast cancer. The protection is strongest among daily aspirin users and those taking seven or more tablets per week.
The study found that BENICAR and Benicar HCT helped patients reach aggressive blood pressure goals, with nearly 69.3% achieving less than or equal to 130/85 mmHg after 16 weeks. Additionally, BENICAR was found to be more effective in reaching blood pressure goals compared to other ARBs like Cozaar and Diovan.
The exhibition features 12 thematic stations celebrating diversity in fields like genetic research, fashion, and environmental understanding, highlighting the impact of women chemists on our daily lives. Featured chemists include Marie Meurdrac and Susan Solomon.
Research suggests that telomere dysfunction may be a key component in the development of many epithelial cancers. Telomere length abnormalities were observed in 97% of precancerous lesions, with abnormally short telomeres found in 88%.
The cytolethal distending toxin, a bacterial toxin that causes diseases such as typhoid fever and diarrhea, damages human DNA by creating lesions and breaks that prevent cells from dividing. This discovery provides a visual blueprint for understanding the toxin's mechanism and could lead to new drug targets to prevent cancer.
The study reveals that histamine-triggered neurons maintain normal waking-level activity during cataplexy and are not affected by drugs that increase the condition. The findings also suggest a link between hypocretins, which govern wakefulness, and the effect of these proteins on histamine cells.
Scientists have found microscopic life in ancient glacier ice, sparking interest in survival mechanisms of small cells under harsh conditions. The discovery opens up new avenues for research into growing previously unculturable organisms and understanding the limits of microbial life.
Researchers have discovered a key principle in protein folding that may help understand neurodegenerative diseases. By studying the formation of raindrops, scientists have developed a new theory that can analyze protein folding in a clearer light, offering a potential step toward understanding and treating these diseases.
A new psychological theory proposes that 16 basic human needs, such as honor and idealism, drive individuals to adopt religious beliefs. The theory, developed by Steven Reiss at Ohio State University, suggests that each person balances their unique set of needs when engaging with religion.
Researchers at UCL's Institute of Neurology found that memories are distributed across different brain regions, not just one area. This means that a single sense can reactivate a memory, rather than requiring all aspects to be recreated.