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Tag: "metabolism" at biology news

Prenatal Stress Keeps Infants, Toddlers up at Night, Study Says

...ating memory and facilitating learning, regulating metabolism and appetite, promoting good moods and sustaining both cardiovascular health and a vigorous immune function. Weve long known that a childs sleep is vital to his or her growth, but the origins of problems affecting it remained unclear. Now, we have...

Hormone helps mice 'hibernate,' survive starvation

A key hormone enables starving mice to alter their metabolism and “hibernate” to conserve energy, revealing a no... to promote survival. “This hormone changes the metabolism and behavior of mice in the face of inadequate nutrition,” said Dr. Steven Kliewer, professor of mol...

Research finds that circadian rhythms dominate all life functions

... about oscillation properties of genes involved in metabolism is essential for understanding how genes interact with and regulate health and disease. Colorado State University researcher Andrey Ptitsyn's new analysis of data collected through several studies establishes a baseline oscillation in 98 to 99 percen...

Gene therapy study shows safety and statistically significant improvement in Parkinson's disease

...eline in both clinical symptoms and abnormal brain metabolism (as measured by positron emission tomography, or P...d a significant improvement (p<0.001) in brain metabolism on the treated side of the brain compared to the untreated side. No adverse events related to the ge...

Hearts of male and female rainbow trout are different

...us studies of trout cardiac performance and energy metabolism have been conducted under hypoxic (oxygen shortage...ds that sex differences in cardiac performance and metabolism exist in rainbow trout. These differences occur at a young age and are only realized when the trout ...

Chemical maps hint at drug's effects on schizophrenia

... believes that this and other studies that explore metabolism at the global level have the potential to greatly impact medical practice. Future experiments focused on correlating these lipid signatures with the clinical outcomes of patients could yield an important tool for designing the best treatment for each...

Study of protein folds offers insight into metabolic evolution

...metabolic networks (for an example, see the purine metabolism network in MANET). The result is a multicolored mosaic of protein fold evolution. The mosaic shows that modern metabolic networks ?and even individual enzymes ?are composed of both very ancient and much more recent protein architectures. "This mos...

Super-fermenting fungus genome sequenced

...lose and using this knowledge for improving xylose metabolism in other microbes, such as Saccharomyces cerevisiae, brewer’s yeast, offers a strategy for improved production of cellulosic ethanol,?said Eddy Rubin, DOE JGI Director. “In addition, this strategy could enhance the productivity and sustainability of...

Power-boosting signal in muscle declines with age

...ndrial function and dysregulated intracellular fat metabolism associated with aging-induced insulin resistance and type 2 diabetes," the researchers concluded....

'Marathon mice' elucidate little-known muscle type

...s known. IIX fibers seem to have the oxidative metabolism of slow-twitch fibers mixed with the biophysical properties of fast-twitch fibers. Oxidative metabolism is by far the most efficient way of generating energy, Spiegelman said. In the current study, the...

Discovery could lead to better control of hemorrhagic fever viruses

...ise from Nancy Andrews, MD, PhD, an expert in iron metabolism at Children's, sped up the work. Although not all hemorrhagic fever viruses use TfR1 to enter the body's cells, the discovery may help explain why these viruses wreak such havoc, damaging multiple organs and causing bleeding under the skin, in in...

Gene variations contribute to aggression and anger in women

... hostility are predictors of hypertension, glucose metabolism and heart diseases," said Dr. Halder. "The genetic marker we found for hostility also may be useful for predicting a person's predisposition to such diseases." ...

Molecular differences between early and advanced melanomas could provide new drug targets

... (ROS). Reactive oxygen is created during cellular metabolism and has long been associated with triggering angiogenesis and the resulting growth of tumors. The scientists also found that the Akt-induced melanoma cells produced more of the enzyme NOX4, one of the NOX family of genes known to increase generation ...

Shedding new light on proteorhodopsin

...ght-sensitive protein. Said Walter, "The energy metabolism of E. coli is well understood so it served as an excellent testbed for observing proteorhodopsin activity when the microbe's ability to respire is suddenly impaired. We impaired respiration through either oxygen depletion or the respiratory poison az...

Insomnia drug can improve brain function

...so conducted brain imaging studies to assess brain metabolism and cognitive activation using PET scans. All of these were conducted with both zolpidem and a placebo in a randomized, double-blind study. The results showed that after receiving zolpidem, the patient was able to stand up and walk, repeat words a...

Putting an old drug to a new use

...ound out that nifedipine exerts its effect on iron metabolism by acting on a molecule called DMT-1. DMT-1 transp...e compound to separate nifedipine's effect on iron metabolism from its established action on blood pressure. "Our discovery is an excellent example of how the...

Researchers from the UGR use a bacterium to obtain biopreservatives from food

...timicrobial compounds such as antibiotics, certain metabolism products, lytic agents, numerous types of protein exotoxins, and bacteriocins. It has become increasingly more necessary to find new antimicrobial agents because of the stronger resistance acquired by bacteria. Researcher Sánchez Hidalgo points out t...

Genes may determine success of hip replacement surgery

...while interleukin 6 is a chemical involved in bone metabolism and the immune response. Vitamin D synthesis is important for strong healthy bones. Variations in the interleukin 6 gene did not seem to have any effect. But those with variations in MMP1 were more than three times as likely to have aseptic loo...

Growth hormone is not the anti-aging bullet for healthy adults

... gland, helps regulate growth during childhood and metabolism in adults. In the United States, the FDA has approved the drug, now produced synthetically, to treat children with short stature and some other growth problems caused by childhood diseases. The FDA has approved GH to treat adults with growth h...

Prehistoric mystery organism verified as giant fungus

...onment approximately 400 million years ago. The metabolism of plants is limited by photosynthesis. Deriving their energy from the sun and their carbon from carbon dioxide in the air, any given type of plant will typically contain a similar ratio of carbon-12 to carbon-13 as another plant of the same type. "B...

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