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Tag: "finds" at biology news

Coffee makes us more likely to say 'yes'

...impact on the extent to which we can be persuaded, finds research published today in the European Journal of Social Psychology. The Australian researchers from the University of Queensland found that with caffeine consumption we are more likely to attend to, and agree with, persuasive arguments. The expe...

Epstein-Barr virus might kick-start multiple sclerosis

... said. Whatever the ultimate cause of MS, Edwards finds the therapeutic implications of her work exciting. "For some reason, MS patients chronically accumulate these hyper-responsive T cells," she said. "And if these cells are indeed involved, either directly or indirectly, in central nervous system injur...

What animals can tell us about hemorrhage, organ transplants and aging

...metabolic rate. A study of birds, bats and rodents finds differences within their cells that may help explain the longer-than-expected life span of birds and bats, Kristan said. These are just two of the symposia taking place at the conference. There are plenty of fresh and interesting story lines you ...

Viral marker of human migration suspect

...ed with another group," she said. "For example one finds viruses from the Japanese and Korean subtype in the European subtype group--another incongruency." If the virus had been strictly passed down from parent to child and had kept step with human migration, one would expect the various subtypes to gro...

A giant among minnows: Giant danio can keep growing

...egulatory, Integrative and Comparative Physiology, finds that the giant danio, unlike its cousin the zebrafish, appears to have the ability to recruit new muscle throughout its life. Humans have the same ability before birth, but mostly lose it after birth. Because the zebrafish and giant danio are clos...

NASA study: Alaskan fires affected Houston air quality in 2004

...data, computer models and weather balloon readings finds that smoke from Alaskan and Canadian forest fires as much as doubled ground-level ozone thousands of miles away in Houston during a two-day period in July 2004. The study, which will appear online Sept. 26 in the Journal of Geophysical Research, offe...

Effective HIV control may depend on viral protein targeted by immune cells

...n international group of researchers. A new study finds that HIV-infected individuals in whom virus-specific CD8 T cells are targeted against the Gag protein have lower viral levels than do those with CD8 responses directed against other viral proteins. The report from the Partners AIDS Research Center a...

Genetic study of Neanderthal DNA reveals early split between humans and Neanderthals

...y, published in this week's issue of Science, also finds no evidence of genetic admixture between Neanderthals and humans. The study helps to explain the evolutionary relationship between Homo sapiens and Neanderthals (Homo neanderthalensis). It also "signifies the dawn of Neanderthal genomics," wrote the...

Sex and the heart: It's not what you think

A surprising new study finds that women in their 60s have as many risk factors for heart disease as men, and by their 70s have more, according to research led by demographers at the University of Southern California. The findings, published in the current issue of the Journal o...

Need to pull an all-nighter?

...ies together previous observations about sleep and finds that nitric oxide production in a specific region of the brain ?the basal forebrain ?is both necessary and sufficient to produce sleep. The findings appear in two related papers in the August 18 issue of the Journal of Neurochemistry and the Septembe...

New brain-chemistry differences found in depressed women

A new brain study finds major differences between women with serious depression and healthy women in a brain-chemical system that's crucial to stress and emotions. The study adds further evidence that depression has its roots in specific alterations within the brain -- sp...

Free drug samples influence prescribing, say one in three doctors

...gree that free drug samples influence prescribing, finds a small but representative US survey published in the Journal of Medical Ethics. But they also think that other doctors are more likely to be influenced by incentives than they are, the data show. In March 2003, the research team surveyed 397 mem...

Protein averts cell suicide but might contribute to cancer

...f, building the new half according to the bases it finds on the old half. When it meets an ‘A' on the old half, it pairs it with a ‘T' on the new half (and vice versa); when it meets a ‘G' on the old half, it pairs it with a ‘C' on the new strand. In the end, there are two complete DNA molecules instead of...

How T lymphocytes attack

Our immune system finds it difficult to eliminate tumours effectively. Deciphering the strategies it implements may increase the immune system's effect on tumour cells and thus improve the clinical perspectives for anticancer immune therapy. At the Institut Curie, INSERM ...

Blocking immune cell action increases Alzheimer's-associated protein deposits

...m Massachusetts General Hospital (MGH) researchers finds that lack of a protein required for recruitment of the brain's primary immune cell led to increased amyloid-beta deposits and earlier death in a mouse model of Alzheimer's disease. The paper will appear in the journal Nature Medicine and has receive...

Protein may hold key to decreasing organ dysfunction rates in heart transplants

...nsplantation. Building on earlier work, the study finds that Lcn-2 is released by inflammatory cells attacking transplanted hearts in mice, and suggests that the protein is responsible for attracting further inflammatory response. Inflammation was found to decrease dramatically in mice in which the produc...

Billions of dollars saved in US by polio vaccination

...hers at the Harvard School of Public Health (HSPH) finds that polio vaccination in the United States has resulted in a net savings of over $180 billion, even without including the large, intangible benefits associated with avoided fear and suffering. This first study to retrospectively demonstrate the enor...

Living with water scarcity -- world must act now

... water-food-environment needs The assessment finds that 1/3 of the world’s population live in areas w...productivity and reduce poverty. The Assessment finds that the greatest potential is found in those rainfed areas of the world that are home to the highes...

Sleep disturbances affect classroom performance

...e of the Journal of Clinical Sleep Medicine (JCSM) finds that adolescents who experience sleep disturbances are more likely to receive bad grades in school. James F. Pagel, MD, of the University of Colorado School of Medicine, examined the results of 238 school district-approved questionnaires, filled out...

The chimpanzee stone age

...ntinue uncovering new facets of our past. Relevant finds come from all parts of the African continent, including the rainforest, and not just the classical east African homeland. ...

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