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Tag: "get" at biology news

Sleep quantity affects morning testosterone levels in older men

...testosterone levels of healthy men decline as they get older. As sleep quality and quantity typically de...ase and diabetes. Experts recommend that adults get between seven and eight hours of sleep each night to maintain good health and optimum performance. ...

Get a whiff of this: Smell test could sniff out serious health problems

...Sniff Magnitude Test, Frank says the test subjects get a whiff of three odors: a blend of ripe cheese and...yl acetate, which smells like banana. “You have to get people to really suppress the sniff and that’s why the bad odors work so well,?explains Frank. “To a...

Deconstructing brain wiring, one neuron at a time

...sed in the cell or cell type of interest: TVA, to get the rabies virus in, and the missing viral gene so the virus can spread to connected cells," says Wickersham. Experimenting on slices of neonatal rat brain, the Salk researchers inserted these two genes into selected neurons ?as well as a gene tha...

Leeches ferry infection among newts

...ld affect their numbers, says Raffel . "When newts get infected, they often stop breeding, apparently to shore up their immune system to fight off the disease. But that comes at the cost of having fewer offspring," he adds. Findings from the study may also indicate that human activities could lead to ...

In young mice, gregariousness seems to reside in the genes

...s such as gender, according to Lahvis. "As they get older, they take on the [behavioral] characteristics associated with gender," Lahvis explains. "The initial genetic predisposition gets masked by reproductive maturity." This result is crucial, argue Lahvis and Panksepp, because it suggests that t...

Scientists see DNA get 'sunburned' for the first time

...s insight explains why some pairs of thymine bases get damaged more frequently than others, and it suggests that scientists can understand damage patterns to DNA by studying the factors that influence how the bases are arranged in space," Kohler said. "In our efforts to understand photo-damage, this n...

Natural antibiotics yield secrets to atom-level imaging technique

...ypically inhibit specific bacterial proteins, AMPs get downright physical with invaders, punching holes into their membranes. But they're selectively pugnacious, targeting microbes but leaving healthy host cells alone. "They're like smart bombs," Ramamoorthy said. "We'd like to exploit their propertie...

Studies force new view on biology of flavonoids

...ally less than five percent, and most of what does get absorbed into the blood stream is rapidly metaboli...dy sees them as foreign compounds and is trying to get rid of them," Frei said. "But this process of gearing up to get rid of unwanted compounds is inducin...

Rapid response was crucial to containing the 1918 flu pandemic

...pear could greatly reduce the number of people who get sick,?says NIGMS Director Jeremy M. Berg, Ph.D. “The historical analyses help validate the models?conclusion and their potential usefulness in preparing for a pandemic.? The ideal way to contain a potential influenza pandemic would be to vaccinate...

Researchers find link between food odors and lifespan in fruit flies

...a result of slower metabolism. "A simple way to get a fruit fly to live longer is to put it at lower t...d odors and lifespan in fruit flies ?the questions get more complicated as scientists gain more knowledge. Researchers hoping to learn why organisms tend...

Scientists identify pancreatic cancer stem cells

...of 12 mice tested. If more cells are used, "we can get tumors to grow 100 percent of the time," Simeone said. "These cells are highly tumorigenic, which reflects the biology of this cancer." Additionally, the tumors derived from the highly tumorigenic pancreatic cancer cells "appeared remarkably simil...

Tundra disappearing at rapid rate

... conditions were just right and then it decided to get up and run, not just walk." Danby and Dr. David... mountainous areas you can only go so high so they get forced into smaller and smaller areas," said Danby. These changes are of particular importance i...

Paper challenges 1491 Amazonian population theories

... the forest. It's still nebulous, and difficult to get people to map stuff, or put hard numbers on it, but there is a sentiment that the Amazonia has been disturbed and that the view of the Amazonian rainforest as a built landscape is gaining momentum. There are extremes at either ends, and the majority ...

Scientists genetically engineer tomatoes with enhanced folate content

...like spinach, but few people eat enough produce to get the suggested amount of folate. So, in 1998, the F...not, the researchers say. "It can take years to get a genetically-engineered food plant approved by the FDA," Hanson said. "But before that is even a qu...

Male-killing bacteria makes female butterflies more promiscuous

...s amazing that the numbers of male butterflies can get so low and yet the population is still sustainable and stable. You don't need many male butterflies to continue the population successfully. This is partly because the decision to mate is mainly under female control and because males have a high mati...

Mutation improves memory, may lead to memory-enhancing pill

...ioli said. "A human equivalent of these mice would get the information right away." The mutant mice also performed better than normal mice in a "fear-conditioning" test. In that test, animals are put into a cage followed by a mild foot shock or are exposed to a tone paired with a foot shock. Their mem...

Mine runoff continues to provide clues to microbial diversification

.... “A key aspect of this paper is the ability to get proteome information on organisms that do not directly have complete genome sequencing information,?VerBerkmoes said. “As a result we could study organisms related to those completely sequenced ?such as the bacterial clades, or ‘cousins,?that are lik...

Major gene study uncovers secrets of leukemia

...per. "The more we learn about why progenitor cells get stuck in the primitive, cancerous stage, the more likely we'll be able to design new therapies that eliminate them. That could help us continue our successful efforts to increase the survival rate of ALL." One potential strategy for eliminating l...

Selectivity is ultimate aphrodisiac

...isdom has long taught that one of the best ways to get someone to like you is to make it clear that you l... unselective," Eastwick added. "If your goal is to get someone to notice you, the unselective flavor is going to fail, and fast." The need to feel speci...

Power-boosting signal in muscle declines with age

...ople age, they may have to exercise even harder to get the benefits afforded to younger folk. That's the suggestion of a report in the February issue of the journal Cell Metabolism, published by Cell Press, showing that a signal that gives muscles a kind of metabolic boost in response to exercise is blun...

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