Tag: "animals" at biology news
Fatty acid catabolism higher due to polyphenol intake
...g cells had a greater fatty acid catabolism if the animals
constantly received quercetin in their feed. Energy regulation The energy-sensing protein SIRT1 is an important regulatory protein that can prolong the life span of model organisms such as yeast and fruit flies. In humans, SIRT1 is possibly invo...
K-State to collaborate on research to forecast ecological consequences of environmental changes
...anges in land-use patterns; climate; biota, or all animals
and plants; and hydrological and biogeochemical cycles, Dodds said. Research will include collecting and analyzing existing biological, environmental and social data, and developing predictive models for testing. Dodds said a better understanding a...
Marine reserves could save coral reefs
...thousands of years by billions of tiny soft bodied animals
called coral polyps. Coral reefs are the world's most diverse marine ecosystems and are home to twenty-five percent of known marine species, including 4,000 species of fish, 700 species of coral and thousands of other plants and animals. Coral ree...
Scientists develope a new model of artificial canine skin
... and which represents an alternative to the use of animals
in research. The model allows the study of those illnesses which most often affect dogs skin without the need to use animals. To develop this model, cells from the epidermis (keratocytes) and the dermis (fibroblasts) from samples of healthy dogs we...
New petroleum-degrading bacteria found at Rancho La Brea Tar Pits in Los Angeles
...t diverse assemblage of extinct ice age plants and animals
in the world. "The living bacteria contained in the asphalt are most likely the progeny of soil microorganisms that were trapped in the asphalt, although some may also have been carried to the surface in the heavy oil that seeped upwards from deep...
LIAI scientists make important finding on cytomegalovirus transmission
...It significantly reduced the virus load in all the animals
and in 50 percent of them it completely eliminated it," Croft said. The OX40 treatment also greatly reduced the virus load, but did not eliminate it in any of the animals. The findings of the Ware and Croft team parallel those of LIAI researcher ...
Study shows marine omega-3 fatty acids have positive effect on muscle mass
... known to improve glucose metabolism in people and animals
showing insulin resistance, the researchers decide...s to the regular diet of steers. After five weeks, animals
with the marine omega-3 diet showed increased sensitivity to insulin which, in turn, improved protei...
Species thrive when sexual dimorphism broadens their niches
..., usually males. So we asked a simple question: If animals
are adapting to their environment, but the sexes are different, does the sexual variation add to diversity? In other words, is it important to consider both sexes? The answer is yes." Butler, Sawyer, and Losos modeled the "morphospace" -- a gauge o...
Scientists identify prion's infectious secret
...reates long fibers called amyloids. (The brains of animals
that have died from prion infections are literally packed with amyloid clumps.) In order to glean insights into the mechanics that enable amyloid formation, Peter Tessier, a postdoctoral scientist in Lindquists lab, used peptide arraysglass slides...
Research suggests men's sexual behavior adapts to perceived threats
...Although many people are familiar with the idea of animals
competing for mates before sex occurs, through mating displays such as bright feathers or butting antlers, we are finding more evidence that there is also competition after mating occurs," says author Todd K. Shackelford. "An alternative way of think...
2 UCSD physician-scientists named to Association of American Physicians
...ses. He has used the insights obtained from these animals
to define novel pathways for disease pathogenesis and therapeutics. ...
Climate change impacts stream life
...s of climate change on stream macroinvertebrates - animals
that can be seen with the naked eye such as crustaceans, snails and larval insects including stoneflies or mayflies. Professor Ormerod, said: "Streams and rivers are likely to be highly sensitive to climate and yet long-term evidence of effects i...
Vaccine prevents prion disease in mice
...preads when an animal eats the body parts of other animals
contaminated with prions. The disease causes demen...cine that decreases the spread of prion disease in animals
also reduces the possibility that the disease could infect humans. ...
Keeping the immune system from starting a 'food fight'
...cation of Cell Press. The researchers found that animals
lacking a protein enriched in fat cells, called ST... inflammation in deep pockets of visceral fat. The animals
also showed symptoms of metabolic syndromeincluding insulin resistance and fatty liver diseaseeven w...
Salk researchers discover first gene that specifically links calorie restriction to longevity
...ng off age-related neurodegeneration in laboratory animals
from mice to monkeys. Although some people are already imposing this strict regimen upon themselves, it is too early tell whether calorie restriction will have the same effect in humans. ...
Global survey of lizards reveals greater abundance of animals on islands than on mainland ecosystems
...ave devastating consequences for lizards and other animals
that inhabit islands because their ecosystems are ...o-author of the study. Climate change will drive animals
to move to new places, says Lauren Buckley, a postdoctoral fellow at the Santa Fe Institute who is a...
How does soy promote weight loss? University of Illinois scientist finds another clue
... times a week for two weeks; during that time, the animals
had unlimited access to food and water. Food intak... noticed a significant weight loss in the group of animals
that had received one of the soy hydrolysates, even though the animals
hadnt changed their eating ha...
Prenatal nicotine exposure can lead to cardiac function reprogramming in adult offspring
...ischemia and reperfusion-induced cardiac damage in animals
exposed to prenatal nicotine treatment. Additional study is thus required....
Alien plants attack using 'resource conservation' as weapon, researchers say
... is the problem of invasive species-exotic plants, animals
and other organisms that are brought into habitats and subsequently spread at a rapid rate, often replacing native species and reducing biodiversity. Invaders thrive best in regions where there is an abundance of materials for growth, such as water...
Amphibians in losing race with environmental change
...ome of the most adaptive and successful vertebrate animals
on Earth. They were around before the dinosaurs, h...o use of modern fertilizers and waste from grazing animals
has led to higher rates of parasite infections, and chemical contamination of aquatic systems is als...
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