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Tag: "influences" at biology news

Researcher gives hard thoughts on soft inheritance

...ssion. The location of DNA within the nucleus also influences gene expression. "Epigenetics as soft inheritan...ance that says what you're getting fed in the womb influences your phenotype ?physical and physiological attributes." Another study showed that early gr...

New research examines genetics of successful aging

... not be surprising if the collection of genes that influences the capacity to reach old age with normal mental capacity differs somewhat for men and women." The majority of the successful aging or "SAG" regions overlapped with gene locations previously reported to show linkage to susceptibility genes for cardio...

Heal thyself: Systems biology model reveals how cells avoid becoming cancerous

...stify the long-standing question of why DNA damage influences the expression of hundreds of genes not involved in the actual repair process. "What we quickly realized is that we had uncovered not just a model of DNA repair, but a blueprint of how the initial event of DNA damage is transmitted by these transcr...

Tiny airborne particles are a major cause of climate change

... was a way to separate meteorological from aerosol influences ?something which was lacking in his previous studies. Together with Kauffman, he used a network of ground sensors (AERONET) to measure the effect of aerosol concentration on cloud cover. Radiation absorption is less affected by meteorology, so if the...

Study finds that a woman's chances of having twins can be modified by diet

...shed an invited comment by Dr. Steinman on dietary influences on twinning in the journal's May 6 issue. The culprit may be insulin-like growth factor (IGF), a protein that is released from the liver of animals -- including humans -- in response to growth hormone, circulates in the blood and makes its way into ...

Sandia work launched on space shuttle shows live cells influence growth of nanostructures

...eveloping a gradient in the local pH. This in turn influences lipid organization and the form of the silica nanostructure, reduces stress, and ultimately improves the living conditions of the ensconced cellular tenants. The work was initially funded by Sandia's Laboratory Directed Research and Development (LD...

It's all in the genes

...o examine how genetic diversity at the stand level influences communities and ecosystem processes. "The Bureau...etic influences] would be more localized--that the influences would be less genetic and more environmental as we moved beyond the local common garden setting to a...

Unusual mechanism keeps repair protein accurate

...to learn how the presence of a proline-rich region influences the ability of the protein to accurately make DNA. ...

Brittle prions are more infectious

...ctions in which an abnormally shaped prion protein influences a normal protein to assume an abnormal shape. In mammalian prion infections, these abnormal shapes trigger protein clumping that can kill brain cells. In yeast cells, the insoluble prion protein is not deadly; it merely alters a cell's metabolism. Pr...

New McGill research shows mice capable of empathy

...l generally explores the genetic and environmental influences that combine to govern reactions to pain. He holds the Canada Research Chair in the Genetics of Pain (Tier 1). ...

Cancer virus protein needed for successful infection

... help us begin to learn whether this viral protein influences cell survival, perhaps by extending the life of the cell," Lairmore says. HTLV-1 infects an estimated 15 to 20 million people worldwide. About 5 percent of those infected develop adult T cell leukemia or lymphoma (ATLL), an aggressive disease chara...

Genes affecting blood pressure change as children become adults

...ingly, he says, was the emergence of novel genetic influences that accounted for up to a third of the total vari...is that the importance of non-shared environmental influences became more important in the black twins over the four-year period, says Dr. Snieder. Non-shared in...

Sex chromosome genes influence aggression andmaternal behavior, say UVa researchers

...me complement, as well as gonadal sex differences, influences behavior. Gonadal male mice (those with Sry with either the XX or XY sex complement) behaved most aggressively. But females with the Y chromosome were aggressive as well. Females with the XX complement were not aggressive, but in contrast they exhibi...

All placebos not created alike

... doctors tell patients about side effects directly influences their experience of them. Prior to participating in the study, doctors provided informed consent forms alerting the patients as to the side effects they might experience: temporary soreness for acupuncture and fatigue and dry-mouth for the pills. Of ...

Scientists discover new genetic subtypes of common blood cancer

...now that a certain gene is driving the disease and influences the clinical behavior of the disease in humans, it immediately goes to the top of the list as a prime candidate for drug development." ...

Faults in newly discovered breast stem cells may lead to tumours

... of genetic errors, perhaps combined with external influences and a family predisposition, could cause the breast stem cell or a "daughter" cell to produce faulty cells. In effect, the errant breast cell can become a tumour factory. For many years, scientists and clinicians have been puzzled by the fact that ...

A Jekyll and Hyde of cytokines: IL-25 both promotes and limits inflammatory diseases

...with T helper cells, a subset of immune cells that influences inflammatory responses," said David Artis, an assistant professor in Penn's Department of Pathobiology and senior author of the study. "These studies show that IL-25 promotes type 2 T helper cells that drive the type of response required for eradica...

Confidence in memory performance helps older adults remember

...older adults and whether using mnemonic strategies influences memory performance. "One's sense of control is both a precursor and a consequence of age-related losses in memory," says lead author Margie Lachman, professor of psychology and director of the Lifespan Lab at Brandeis University. "Our study shows t...

UCLA paper examines how one disease may prevent another

...ngs suggest that genetic, infectious and metabolic influences should be considered when looking for treatments, particularly in regard to HIV/AIDS. "Clinical observations of disease-versus-disease interactions have led to an understanding of the mechanisms of several diseases," Stiehm said. "In turn, these obs...

Alzheimer's found to be mostly genetic

...called sporadic, and testing how important genetic influences are ... and we're finding genetic influences are tremendously important," Gatz said."It does suggest that there is an underlying genetic basis." ...

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