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Tag: "human" at biology news

Hormone helps mice 'hibernate,' survive starvation

...ealing a novel molecular target for drugs to treat human obesity and metabolic disorders, UT Southwestern M...ay to craft the next generation of drugs to combat human obesity and other conditions.” Mammals on the brink of starvation normally shift their main fuel ...

Research team identifies new Alzheimer's gene

...rvey a sufficient number of letters throughout the human genome to provide a clearer picture of how life works and ultimately allow better clinical management of patients,” said Dr. Dietrich Stephan, Director of TGen’s Neurogenomics Division and the paper’s senior author, “These new, robust tools may event...

Dirty snow may warm Arctic as much as greenhouse gases

...mportant overall climate changing mechanism. Other human influences on Arctic climate change are particles ... open-field fires account for the rest. Because of human activity, greenhouse gas levels have increased by one-third in the last two centuries. “A one-thi...

Largest synthetic gene ever built offers insights into anti-malarial drug resistance

...loser to understanding why the most lethal form of human malaria has become resistant to drug treatment in ...the vast majority of drug resistance that leads to human death from malaria. Earlier this year, they also helped describe how the gene PfNHE likely contribut...

New bacterium discovered -- related to cause of trench fever

...e of the few in the world able to isolate and grow human Bartonella species, and culture of the new organism made study of the DNA much easier. Also collaborating on the research were scientists at the Massachusetts General Hospital of Harvard Medical School and the Centers for Disease Control and Prev...

Studies to find better ways to preserve human eggs, ovarian tissue under way

The goal is to make human eggs, ovarian tissue, blood vessels, even whole or...ege of Georgia are comparing the two approaches in human ovarian tissue and eggs, or oocytes, as well as human-like cow ovarian tissue and eggs. They star...

Millions of children denied drug that costs less than $3 a year

...s. The burden of untreated epilepsy in terms of human suffering and social costs is enormous, says Professor Perucca. An efficient epilepsy management programme will work only if fully integrated within a community healthcare delivery system, which should provide not only reliable supplies of drugs,...

In mice, drug protects against diabetes and atherosclerosis

...ed toxicity tests in animals, and then move toward human testing. The important lesson from the new study, the researchers wrote in their report, is the demonstration that aP2 can be blocked by a small-molecule, oral compound. In turn, they add, the results suggest that targeting aP2 "can lead to a new ...

Ancient DNA traces the woolly mammoth's disappearance

...y to have been driven by environmental rather than human causes, even if humans might have been responsible...ir fullest extent. The findings also offered early human hunters a potential alibi; they didn’t come on the scene in large numbers until even later. In se...

New study finds genetically engineered crops could play a role in sustainable agriculture

...e controversial because of concerns about risks to human health and biodiversity, but few analyses exist that reveal the actual effects genetically modified plants have on other non-modified species. In an analysis of 42 field experiments, scientists found that this particular modification, which causes t...

Newly found sensing system enables certain bacteria to resist human immune defenses

...s. “Gram-positive bacteria are major threats to human health, especially due to increasing problems with...us epidermidis to study its response to a specific human AMP, human beta defensin 3. S. epidermidis is one of several hard-to-treat infectious agents that ca...

Brightening prospects of using fluorescent nanotubes in medical applications

...00 laid side-by-side to span the width of a single human hair. In the last five years, scientists have discovered that some individual nanotubes are fluorescent. That is, they glow when they are bathed in light. Some glow brightly. Others glow dimly. Some glow in spots. Others glow all over. Until now, t...

Breakthrough developments in rheumatoid arthritis reported

...e turns to the basic building blocks of life – the human genome – to figure out what makes these people susceptible to the disabling inflammatory condition. Dr. Gregersen has finally closed the circle between key genes identified in his laboratory at the Robert S. Boas Center for Genomics and Human Genet...

Researchers shed light on shrinking of chromosomes

A human cell contains an enormous 1.8 metres of DNA partitioned into 46 chromosomes. These have to be copied and distributed equally into two daughter cells at every division. Condensation, the shortening of chromosomes, allows the cell to handle such huge a...

Now, self-healing materials can mimic human skin, healing again and again

... researchers at the University of Illinois, mimics human skin by healing itself time after time. The new materials rely upon embedded, three-dimensional microvascular networks that emulate biological circulatory systems. “In the same manner that a cut in the skin triggers blood flow to promote healing, a ...

Researchers examine carbon capture and storage to combat global warming

...are the potential risks of carbon sequestration to human health, mainly through asphyxiation and groundwater contamination. The threat of asphyxiation-or suffocation due to carbon dioxide displacing oxygen-is very low, the researchers said, because of the unlikelihood of a rapid leakage, which would hav...

Undergraduate research shows leaderless honeybee organizing

...he colony is not a dominance hierarchy and, from a human perspective, this is unusual. Our human society is very dominance hierarchy structured --we have centralized systems of control. But bee col...

Newly discovered antibody may be body's natural defense against Alzheimer's

... have identified naturally occurring antibodies in human blood that may help to defend against this form of...ll scientists were able to measure and extract the human version of anti-oligomer antibodies from IVIG and then demonstrate that these antibodies are present...

Researchers shed light on mechanism of action used by anti-cancer drug

... the Journal of Biologic Chemistry, showed that in human leukemia cells, sorafenib lethality was less a con...the present work, Grant and his team found that in human leukemia cells, sorafenib induces a process known as endoplasmic reticulum (ER) stress, which result...

ASU research shows connection between testosterone, dietary antioxidants and bird coloration

... that it is worth considering the implications for human nutrition and health. “If testosterone is having immunosuppressive effects in human men, perhaps they too could benefit from increased carotenoid intake, say, by eating more corn,” he...

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