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Tag: "influenced" at biology news

Liver cancer patients with high serum levels of hepatitis B virus face poorer outcomes

...stical analysis to assess which factors might have influenced patient outcomes. The median survival of all patients was 6.83 months. Patients with high pre-treatment HBV DNA had a significantly higher incidence of developing severe hepatitis during chemotherapy and had poorer survival. Other factors signific...

Penn researchers link cell's protein recycling systems

... lysosomal system more or less active dramatically influenced the severity of neurodegeneration. “We found that whenever we knocked the lysosome system down, neurodegeneration always got worse,” says Taylor. “Then when we activated the autophagy system by feeding the flies a drug called rapamycin, neurodege...

'Insulator' helps silence genes in dormant herpes virus

...NA segments that work to prevent a gene from being influenced by the activation or repression of its neighbors. About a dozen different insulator elements have been identified in organisms as varied as yeast, fruit flies, and humans. Not simply passive barriers, insulators help organize and regulate gene act...

Research says boiling broccoli ruins its anti-cancer properties

...wn how the glucosinolates and isothiocyanates were influenced by storage and cooking of Brassica vegetables. The researchers, Prof Paul Thornalley from Warwick Medical School at the University of Warwick and Dr Lijiang Song from the University of Warwick’s Department of Chemistry bought Brassica vegetables, ...

In young mice, gregariousness seems to reside in the genes

...y, the extent of a young mouse's gregariousness is influenced by its genetic background. The work, reported today (April 3, 2007) in the journal Public Library of Science (PLoS) One, is important because it provides the first scientific insight that genes contribute to a novel form of natural reward - the pl...

Stanford-led study closes in on genes that may predispose some people to severe depression

...ession." Researchers learned that depression is influenced by genetics by studying patterns of depression in twins and families. No single gene is thought responsible for determining the risk for developing depression. Instead, multiple genes are probably interacting to create what amounts to a genetic...

Good behavior, religiousness may be genetic

...s are repeatedly showing that our behavior is also influenced by our genes," says Koenig....

How trees manage water in arid environments

...he seasonal behavior of the trees is significantly influenced by temperature changes: the trees are largely dormant in winter and have a summer growing season. The mountain-top forest that she studied was in some ways the opposite. __IMAGE_3 "During the summer season before the heavy rains, when almost all...

Lithium builds gray matter in bipolar brains, UCLA study shows

...rain tissue and, if so, whether those changes were influenced by lithium treatment. Specifically, they employed high-resolution MRI and cortical pattern-matching methods to map gray matter differences in 28 adults with bipolar disorder ?70 percent of whom were lithium-treated ?and 28 healthy control subjects. D...

Bisexual fruit flies show new role for neurochemical

...ost-traumatic stress syndrome and schizophrenia is influenced by the number of receptors on nerve cells. The more receptors each cell has at its communication points, or synapses, the better that messages are carried through the brain. A UIC research team led by David Featherstone, assistant professor of biol...

A genetic 'gang of 4' drives spread of breast cancer

...e ‘lung metastasis gene-expression signature?(LMS) influenced both breast tumor growth and spread to the lungs. Co-authors on the paper were from the University of Chicago, The Netherlands Cancer Institute, Veridex L.L.C., The Cleveland Clinic and the Erasmus Medical Center in The Netherlands. "There has been...

Why aren't humans furry? Stone-Age moms could be the answer

...urture her baby. The newborn's appearance probably influenced whether the mother kept or abandoned it. An attractive baby was more likely to be kept and reared. Harris' theory is that this kind of parental selection may have been an important force in evolution. If Stone Age people believed that hairless bab...

University of Alberta researchers unravel intricate animal patterns

...of Sciences." "Every individual in the group is influenced by movement of the individuals in its neighbourhoo...n this case the behaviour of an individual will be influenced by the signals received from those con-specifics that face towards this individual," said Eftimie. "...

Scientists sequence genome of parasite responsible for common sexually transmitted infection

...rasite's genome, suggesting that bacteria may have influenced the development of the parasite's metabolism. The decoded genome also revealed 800 genes for surface proteins that likely enable T. vaginalis to adhere to cells in the urinary and genital tracts and cause infection. Additionally, the researchers were...

Why is the heart heart-shaped?

...hanges in cell size and shape, all of which can be influenced by the local environment. The heart appears as a simple tube early in development; later, the tube walls bulge outward to form the cardiac chambers. In a new study published online in the open access journal PLoS Biology, Heidi Auman, Deborah Yelo...

Satellites shed light on global warming

...s is impacting the planet. The cryosphere is both influenced by and has a major influence on climate. Because any increase in the melt rate of ice sheets and glaciers has the potential to greatly increase sea level, researchers are looking to the cryosphere to get a better idea of the likely scale of the impac...

Genes and genius: Researchers confirm association between gene and intelligence

...r performance subtests, but the genetic variations influenced only performance IQ scores. "One way to measure performance IQ may be to ask people to order pictures correctly to tell a story," Dick explains. "A simple example might be pictures of a child holding a vase, the vase broken to bits on the floor an...

Scientists identify a candidate gene for osteoporosis

...ity (BMD)—the primary indicator of osteoporosis—is influenced by both genetic and environmental factors (e.g., diet or medication). But the genetic element has been difficult to characterize because bone growth is controlled by many genes, including those for various hormones, growth factors, signaling molecul...

Low levels of neurotransmitter serotonin may perpetuate child abuse across generations

...imal models has shown that serotonin production is influenced by a mother's treatment of her offspring early in their lives and affects the offsprings's responses to stress in adulthood. In earlier research on abuse of infant monkeys, Maestripieri and his colleagues studied females that were switched at birt...

NASA snow data helps maintain nation's largest, oldest bison herd

... Landsat satellite to describe how the snowpack is influenced by patterns of vegetation, geothermal features, and wind. Daily measurements of precipitation and temperature from USDA Snowpack Telemetry system are used to drive the model through time. "Bison have one of the longest migrations of any large mamm...

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