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Tag: "increase" at biology news

Woman's Day and For Womens of Science

...evidence indicates that methylmercury exposure may increase the risk of cardiovascular disease, particularly in adult men. Increasing mercury concentrations are now being found in a number of fish-eating wildlife species in remote areas of the planet. The actual socioeconomic costs of mercury pollution a...

'Marathon mice' elucidate little-known muscle type

...on in I, IIA, and IIB MHCs and as much as a 5-fold increase in IIX MHC. Nearly 100% of muscle fibers in the transgenic animals contained abundant MHC IIX mRNA and protein, they found, as compared to only 15%?0% in normal animals. PGC-1â also changed the muscles' metabolic characteristics by driving the ac...

Mercury contamination of fish warrants worldwide public warning

...evidence indicates that methylmercury exposure may increase the risk of cardiovascular disease, particularly in adult men. Increasing mercury concentrations are now being found in a number of fish-eating wildlife species in remote areas of the planet. The actual socioeconomic costs of mercury pollution a...

Study examines risk of soft tissue sarcomas in hereditary retinoblastoma survivors

.... The authors calculated that there was a 184-fold increase in soft-tissue sarcomas among hereditary retinobla...ompared with the general population and a 390-fold increase in cases of leiomyosarcomas. Only 20 percent of the soft tissue sarcomas were diagnosed within 10...

How appetite-stimulating brain cells work overtime during fasting

...ing mitochondria in neurons that drive hunger. The increase in mitochondria, in turn, allows the brain's hunge...y the sympathetic nervous system, also leads to an increase in the number of mitochondria. The role of the related protein, UCP2, which is present at high le...

Columbia scientists determine 3-dimensional structure of cell's 'fuel gauge'

...he cell, it works through a different mechanism to increase how much glucose the cell takes in and uses to create ATP. Research in rodent models has shown that AMPK activators can lessen the pathologies associated with diabetes, including problems that diabetics have regulating blood sugar. Dr. Shapiro ex...

Lithium builds gray matter in bipolar brains, UCLA study shows

...ar patients who were taking lithium had a striking increase in gray matter in the cingulate and paralimbic reg...ately, said Bearden, there is no evidence that the increase in gray matter persists if lithium treatment is discontinued. "But it does suggest that lithium can ...

When your brain talks, your muscles don't always listen

.... "After power training with weights, we see an increase in firing rates," Knight said. "For safety, we're commonly advised to do things slowly when exercising, but it's important to also do some fast exercises. You need a fast movement to prevent a fall. Even in the frail elderly, it is possible to use ex...

3 proteins may play important role in nerve-cell repair

...ditional copies of the three genes to the cells to increase the levels of the proteins, and then used a laboratory technique called RNA intereference to turn off production of the proteins. Of the three molecules, GPR3 was the most abundant in the nerve cells, while GPR12 was the most potent at stimulatin...

Common gene version optimizes thinking -- but with a possible downside

...ir brain's thinking circuitry, yet also appears to increase risk for schizophrenia, a severe mental illness marked by impaired thinking, scientists at the National Institutes of Health's (NIH) National Institute of Mental Health (NIMH) have discovered. The seeming paradox emerged from the first study to expl...

Cocoa 'vitamin' health benefits could outshine penicillin

...urrently, there are only 13 essential vitamins. An increase in the number of vitamins would provide significant opportunity for nutritional companies to expand their range of products. Flavanols like epicatechin are removed for commercial cocoas because they tend to have a bitter taste. So there is huge scope...

A new study of living cells could revolutionize the way we test drugs

...voke a response from the cell. Ethanol is known to increase the transparency of cellular membranes which we hoped would give a signal we could detect," says Dr Irina Barbolina, who carried out the experiments. It worked. As soon as the yeast got a taste of the vodka, the probe registered an electrical sign...

New technologies coming too fast for Indian farmers

...from 12 percent. Stone's research reveals that the increase resulted not from traditional farming methods of testing seed for efficacy, but from a pattern of "social learning" ?farmers relying on word of mouth to choose seeds. "Very few farmers were doing experimental testing, they were just using it becaus...

Chemo combination improves survival in asbestos-related cancer

...It is a personal matter as to whether the survival increase for patients receiving the two drugs is worthwhile...rge part on the patient. A 2.8-month mean survival increase means that some patients may get even more than that, though some people will get less. Many, if not...

Liver regeneration may be simpler than previously thought

...ead, regeneration could actually be only due to an increase in cells that multiply through regular cell divisions, a process called hyperplasia. The new results may also have important medical implications. Transcription factors are known to be more difficult to manipulate than the other identified protei...

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

...zyme NOX4, one of the NOX family of genes known to increase generation of ROS and to trigger angiogenesis. ...in cells with greater Akt expression, there was an increase in impaired mitochondria-- the energy factories of cells. Their research showed, however, that these...

Penn study on olfactory nerve cells shows why we smell better when we sniff

...lb with breathing. "The mechanosensitivity may increase the sensitivity of our nose, especially when stimulated by weak odors," says Ma. "It helps the brain make better sense out of odor responses when it integrates airflow information. We still don't know how it happens, but sniffing is essential for odo...

Are we killing the world's oceans?

...e change, ocean acidification and coral reefs, the increase in ocean dead zones, scientific and social dynamics during fisheries crises, how we all play a role in the collapse of coastal fisheries, and environmental issues surrounding offshore petroleum resource development. There will be opportunities for qu...

Study shows hope for early diagnosis of Alzheimer's

...or further evaluation. “Our ultimate goal is to increase the number of patients who are diagnosed earlier so they can start treatment sooner and slow the progress of Alzheimer’s and improve their quality of life,?Polikar said. ...

Scientists discover how body fights to control spread of cancer

...but until now scientists did not know whether this increase played any role in the spread of cancer. Our study indicates that galectin-3 may play a critical role and may have significant implications for future developments of drugs for the treatment of the disease." ...

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