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Tag: "dietary" at biology news

It's not all genetic: Common epigenetic problem doubles cancer risk in mice

...t of colon cancer prevention strategies, including dietary interventions and targeted drugs. ...

Highly adaptable genome in gut bacterium key to intestinal health

...down otherwise indigestible carbohydrates, such as dietary fiber, and supplies its host with nutrients while ...bial society that it is an integral part of." The dietary switch also caused B. theta to change the activity of genes that code for components of its outer su...

Molecule that usually protects infection-fighting cells may cause plaque deposits inside arteries

...ractively for patients, this approach may not need dietary restriction." Dr. Miyazaki, associate professor in the Center for Immunology and of pathology, and his colleagues first discovered the protective role of AIM six years ago. In the current study, scientists exposed mice lacking AIM to a fatty diet th...

Iron exporter revealed that may explain common human disorder

... their mothers. After birth, the intestine absorbs dietary iron and releases it into the bloodstream where developing red blood cells incorporate the iron into hemoglobin. When red blood cells die, macrophage cells consume them and recycle the iron they contain. Macrophages and liver cells also store any exc...

Rare surgery performed to remove pancreas, prevent diabetes

... enzymes, is dealt with by taking the enzymes as a dietary supplement. Leading the complex operation were Drs. Selwyn M. Vickers, Devin E. Eckhoff and Juan L. Contreras. Vickers, who removed the pancreas, directs a clinic for the management of chronic pancreatitis, is chief of gastrointestinal surgery and c...

Canadian youth 4th highest in international obesity study

...med, was surveyed. While difficult to explain, the dietary results only underline the importance of focusing on physical activity rather than food intake as the primary way to combat overweight and obesity, the researcher emphasizes. "The adolescent obesity epidemic is a global issue," concludes the paper, ...

Yeast Network Prevents Damage By Oxygen Radicals

...ns we've found might point to new strategies, like dietary supplements, that will alleviate some of the clinical symptoms of human diseases associated with genetic deficiencies of DNA damage responses." ...

Oldest fossil human protein ever sequenced

...ed by proline. The authors suggest that this is a dietary response, as the formation of hydoxyproline requires vitamin C, which is ample in the diets of herbivores like gorillas, but may be absent from the diets of the omnivorous primates such as humans and Neanderthals, orangutans and chimpanzees. Therefor...

Future diabetes drugs may target new protein interaction

...ns, called sirtuin1 and PGC1-alpha, increased when dietary calories weren't available. Once mice were fed, levels of the two proteins went down and sugar production ceased. "It isn't a coincidence," says Pere Puigserver, Ph.D., an assistant professor of cell biology at the Johns Hopkins University School of...

PHACCS, an online tool for estimating the structure and diversity of uncultured viral communities using metagenomic information

...ns, called sirtuin1 and PGC1-alpha, increased when dietary calories weren't available. Once mice were fed, levels of the two proteins went down and sugar production ceased. "It isn't a coincidence," says Pere Puigserver, Ph.D., an assistant professor of cell biology at the Johns Hopkins University School of...

Computational verification of protein-protein interactions by orthologous co-expression

...ns, called sirtuin1 and PGC1-alpha, increased when dietary calories weren't available. Once mice were fed, levels of the two proteins went down and sugar production ceased. "It isn't a coincidence," says Pere Puigserver, Ph.D., an assistant professor of cell biology at the Johns Hopkins University School of...

Eliminate Data Analysis Bottlenecks in Drug Discovery

...ns, called sirtuin1 and PGC1-alpha, increased when dietary calories weren't available. Once mice were fed, levels of the two proteins went down and sugar production ceased. "It isn't a coincidence," says Pere Puigserver, Ph.D., an assistant professor of cell biology at the Johns Hopkins University School of...

Research may provide new link between soft drinks and weight gain

...tly than it does other carbohydrates. "Similar to dietary fat, fructose doesn't appear to fully trigger the hormonal systems involved in the long-term control of food intake and energy metabolism," said coauthor Dr. Havel. The researchers say that further studies in humans are needed to determine if high-f...

Caloric restriction won't dramatically extend life span in humans: UCLA research

...d their findings in a journal article titled, "Why dietary restriction substantially increases longevity in animal models but won't in humans," published in the August issue of the peer-reviewed journal Ageing Research Reviews. Their mathematical model shows that people who consume the most calories have a ...

Evolution of taste receptor may have shaped human sensitivity to toxic compounds

... nature. It is widely believed that behavioral and dietary choices may have reduced the importance of such chemical perception in higher primates, and particularly in humans. In new work, researchers including Nicole Soranzo of University College London and Bernd Bufe of the German Institute of Human Nutrit...

Researchers identify new genes that regulate aging

...ties, including insulin signaling, metabolism, and dietary regulation. Genes involved in insulin signaling ar...(2005) New genes tied to endocrine, metabolic, and dietary regulation of lifespan from a Caenorhabditis elegans genomic RNAi screen. PLoS Genet 1(1): e17. ...

Female volunteers prepare for a second 'bedrest'

...n another group, daily meals were accompanied by a dietary supplement (certain amino acids which form the basis of proteins). Volunteers needed for phase 2 For phase 2 of the study, which is due to begin in September, ESA, the French space agency CNES and the MEDES Institute are looking for twelve new fema...

New Discovery May Help Doctors Treat Infertility

...beta is also known to respond to environmental and dietary chemicals that can mimic the effects of estrogen and stimulate the body’s natural hormones. One example is genistein, a common component of soy products. These new studies by Korach and colleagues suggest that such environmental exposures could inter...

Insulin pulses keep the liver lean

... hormone normally stays trim and also suggests new dietary strategies and treatments to avoid fatty liver, a growing healthcare epidemic, said the researchers. Insulin produced by the pancreas allows cells to take up glucose from the bloodstream and burn it for energy. In the liver, insulin promotes the syn...

Fruit fly studies open new window on cancer research

...n the same way. If they do, then new drugs or even dietary advice could block their activity and slow down the growth of tumours. This research tells us more about the way insulin works and so it is furthering our understanding of processes associated with diabetes as well as cancer. We're fortunate that th...

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