Researchers identified 277 human genes with different expression profiles in stem and progenitor cells involved in blood cell development. The new method allows for functional validation of high-throughput gene expression analysis, with potential applications beyond blood development.
Researchers discovered elevated GABA levels in aggressive neuroendocrine tumors, which may indicate poor prognosis. The study suggests a unique tumor-associated pattern that could provide new ways to diagnose these cancers earlier and implement more effective treatments.
A new study suggests that antidepressants can help reduce the risk of heart attacks and death among patients who have had a heart attack and are experiencing depression. The ENRICHD study found that patients taking antidepressants had a 43% lower risk of death or recurrent non-fatal heart attack, compared to those not taking them.
State-sponsored anti-tobacco media campaigns are associated with reduced youth smoking rates and increased antismoking attitudes. Students exposed to at least one state ad per four months were less likely to smoke and more likely to believe they would never start.
A study found that antidepressants reduced the risk of death and non-fatal heart attacks by 43% in depressed heart attack patients. The analysis was based on data from the Enhancing Recovery in Coronary Heart Disease clinical trial, which randomized 2,481 patients with depression or social isolation between 1996 and 1999.
A recent study found that 33% of people over 55 had undiagnosed asthma, with severe symptoms affecting their quality of life. The lack of specific asthma management plans for older people has significant implications for the growing Australian population living with asthma.
The USPSTF has issued new recommendations for HIV screening, which will be posted on the journal's website and the Agency for Health Care Research and Quality's website. The Task Force recommends testing for all individuals at risk of HIV infection, as well as pregnant women to prevent mother-to-child transmission of AIDS.
A Phase IIa study found that patients given clazosentan suffered from significantly fewer and less severe cases of cerebral vasospasm compared to placebo. The treatment was also associated with a lower incidence of new cerebral infarcts.
A new study by Stanford University and Johns Hopkins University found that third-graders with televisions in their bedrooms score lower on standardized tests. In contrast, those with access to home computers earn higher scores, regardless of homework time.
A large registry study found that vasodilators, such as nitroglycerin and nesiritide, have a lower in-hospital mortality rate compared to positive inotropes like dobutamine and milrinone for treating acute decompensated heart failure. The study suggests reserving inotropes for patients who fail with vasodilators or are severely ill.
Researchers sequenced the genome of Rickettsia felis to understand its biology and behavior. They discovered two unexpected plasmids that can replicate on their own, leading to novel techniques for study. The discovery also revealed a conjugation mechanism, forcing a reevaluation of how intracellular bacteria exchange genetic material.
A study of 348 students found that those with a TV in their bedroom scored significantly lower on all tests, while those with home computer access scored higher. The researchers controlled for other factors and observed large differences in predicted test scores.
The International Campaign to Revitalise Academic Medicine proposes three possible futures for academic medicine: one driven by the private sector, another by public engagement, and a third by global networks. The scenarios offer insights into how academic medicine should evolve, with potential benefits including improved efficiency, i...
Edwin Rydberg wins prestigious EMBO Science Writing Prize with his essay Through The Illusions, exploring the link between DNA changes, smoking and schizophrenia. His work showcases a fascinating combination of factors, inspiring new research in popular science writing.
A long-term study of over 1,000 children found that those who watched less TV in childhood and adolescence were more likely to achieve a university degree. Excessive TV time was associated with lower levels of educational attainment, even after controlling for other factors.
A new study in PLoS Biology confirms the genetic link between Polynesians and indigenous Taiwanese populations, revealing three unique mitochondrial DNA mutations. The findings suggest that Taiwanese aboriginal populations have been genetically isolated from mainland Chinese for 10,000 to 20,000 years.
North and South American researchers have identified unusual structural features in the ribosome of Trypanosoma cruzi, a parasite responsible for Chagas disease. The discovery may lead to the development of targeted therapies without harming infected organisms.
A study at McGill University investigates the links between brain behavior, neurochemistry, and molecular biology in relation to mental disorders. The researchers aim to develop diagnostic tools, treatment, and prevention strategies for conditions like schizophrenia.
Antibiotic-resistant bacteria can be transmitted from animals to humans through contaminated food and handling practices. The European Union ban on agricultural antibiotics has led to a decline in resistant bacteria, suggesting that transmission from agriculture can have a greater impact on human populations than hospital transmission.
A new study confirms the filter's effectiveness in reducing prions by up to 99.9%, providing a critical safety measure against vCJD transmission through blood transfusion. The technology has the potential to safeguard the global blood supply and prevent future outbreaks.
A study of 1,797 children found a consistent pattern of negative associations between early TV viewing and adverse cognitive outcomes at ages six and seven. In contrast, TV viewing during preschool years had a more beneficial effect on reading recognition and short-term memory.
A study found that third-grade students with TVs in their bedrooms scored lower on math and language arts tests compared to those without. However, children with access to home computers showed improved test scores, suggesting a potential solution for parents seeking to boost their child's academic achievement.
A study by Yale University researchers found that sensor-based detectors for suicide bombers are ineffective and would only save a few lives. The team suggests investing in intelligence gathering to intercept attackers before they attack.
Researchers identified a striking similarity in personality traits between problem gamblers and individuals with alcohol, cannabis, and nicotine dependence. Young adults with problem gambling diagnoses tended to exhibit negative emotions, impulsive behavior, and risk-taking tendencies, suggesting a common underlying profile.
Research reveals continued union decline and increasing availability of flexible working arrangements in Britain. Despite this, employees' perceptions of work-life balance have improved, with managers showing a greater understanding of employees' responsibilities outside work.
A new 12-week study of 302 adults with high-normal or mildly elevated blood pressure found that eating special cookies containing 40 grams of soybean protein resulted in significantly larger decreases in pressure levels compared to those who ate similar cookies made of complex wheat carbohydrate. The soybean group had a net reduction o...
The five-year project aims to develop innovative tools for measuring population health, particularly in resource-poor settings. It will provide governments and communities with practical strategies to understand their health state and prioritize spending, ultimately improving global health outcomes.
Researchers at U of MN identified 14 genes that regulate blood stem cell development, which could lead to new treatments for blood disorders and cancers. The discovery provides insight into understanding how to stimulate blood stem cells to multiply in the laboratory.
NASA's Hubble Space Telescope captured dramatic images of comet 9P/Tempel 1 before and after a 820-pound projectile impact by the Deep Impact spacecraft. The collision caused a brilliant flash and increased the size of the inner cloud of dust and gas, which expanded outward in a fan shape at speeds of up to 1,200 miles per hour.