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Tag: "deficiencies" at biology news

Biologists develop large gene dataset for rice plant

...tant role in gene regulation, he said, adding that deficiencies in small RNA production can have a profound effect on development. "Small RNAs also have been associated with other important biological processes, such as responses to stress," Meyers said. "Many of small RNAs in rice have related sequences in th...

Misusing vitamin to foil drug test may be toxic; plus, it doesn't work

...acin is used in much larger doses to treat vitamin deficiencies and other conditions. "People often assume niacin is completely safe," said Dr. Mittal. "As a water-soluble vitamin, it is easily excreted from the body. However, the body has its limits, and some of these patients took 300 times the daily recommende...

Power-boosting signal in muscle declines with age

...at content seen with aging could be traced back to deficiencies of AMPK. They compared AMPK activity in young and old rats following three "perturbations" that normally stimulate the enzyme and, in turn, mitochondria production. The treatments included acute exposure to an AMPK-stimulating chemical, chronic expos...

Scientists genetically engineer tomatoes with enhanced folate content

...nd crops for less developed countries where folate deficiencies are a very serious problem." Folate is one of t...etic form of folate known as folic acid. Folate deficiencies remain a problem in many underdeveloped countries, however, where adding folic acid is impractical o...

Thymus transplants gives hope to babies with fatal immune disease

...such a transplant at Duke to correct immune system deficiencies caused by a condition called DiGeorge anomaly. Duke is the only center in the world that performs the procedure. The latest results of Duke's experience with this treatment of DiGeorge anomaly, published Tuesday, May 15, in the journal Blood, show...

Nitric oxide: Key to cardiovascular and pulmonary function and drug effectiveness

... "Also, the findings point to the possibility that deficiencies in the activity of nitric oxide, which occurs in common disorders such as high blood pressure, diabetes, atherosclerosis, cystic fibrosis and neurodegenerative conditions, as well as in aging, may interfere with the G-protein coupled receptor signali...

Gene malfunctions cause schizophrenia, depression symptoms in mice

...ains exhibited behavioral abnormalities and memory deficiencies resembling the symptoms of schizophrenia in humans. Additionally, these symptoms could be alleviated in the mice by antipsychotic drugs. Similarly, the other mutant mouse strain showed behaviors that reflected depressive symptoms. These symptoms c...

The mouflons of the Kerguelen archipelago

... small number of individuals will exhibit numerous deficiencies and reduced genetic diversity. http://www.video.uqam.ca/kerguelenmouflons The mouflon population of the Kerguelen archipelago The Kerguelen Islands in the Indian Ocean are one of four districts in the French Austral and Antarctic Territories...

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