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Tag: "influenced" at biology news

Free drug samples influence prescribing, say one in three doctors

...lso think that other doctors are more likely to be influenced by incentives than they are, the data show. In M...eir decision to prescribe a drug would probably be influenced by accepting the samples. But respondents felt that other doctors would be significantly more like...

Molecular atlas provides new tool for understanding estrogen-fueled breast cancer

...they had produced -- an atlas of all gene segments influenced by the ER. "cis" refers to a DNA segment that regulates a gene's activity in response to a signal from outside the gene (while "trans" refers to a factor that acts on DNA); and "ome" -- from the Greek word for manager -- refers to the full set of suc...

Gene linked with mental illness shapes brain region, researchers find

... receive input from the pulvinar are more strongly influenced in such individuals, and the pulvinar communicates with brain regions involved in negative emotional issues," said Dr. Dwight German, professor of psychiatry at UT Southwestern and senior author of a study available online and in a future issue of B...

Older fathers more likely to have autistic children

...to keep in mind, however, that age at paternity is influenced by the sociocultural environment and varies across societies and over time," they continue. "In a given population, a change in the sociocultural environment could produce a change in paternal age at birth. In theory, it could thereby lead to a cha...

What does the public really know about HPV?

...cussion of the vaccine by the media and public has influenced the decision to vaccinate among women at risk. What Do U.S. Women Know About Human Papillomavirus (HPV) and Cervical Cancer? Many women with HPV show no symptoms of the virus, and infections often clear without need for treatment. Because of ...

T for two: Scientists show how immune system chooses best way to fight infection

...cientists to tackle a number of diseases which are influenced by these different types of T cells. "Our team has shown that a process known as 'trans-conditioning', which we knew to be involved in T cell development, actually has a profound influence on whether a T cell becomes an effector or a regulatory ce...

Air travel and flu: Post-9/11 restrictions delayed start of season

... of the flu season in the USA has been shown to be influenced by air travel. After flights were restricted following the 9/11 terrorist attacks in 2001, the flu season started about two weeks later than usual. In both the northern and southern hemispheres, influenza epidemics occur annually during the winter f...

Successful lung cancer surgery not enough to break nicotine dependence in many smokers

...ow long patients quit before surgery may have been influenced by their "self efficacy" for quitting, he says. "The thing that really drove whether or not people relapsed is whether they saw smoking as pleasurable and rewarding to the point that they can’t do without cigarettes, and they don’t believe they are a...

Particle size matters to bacteria ability to immobilize heavy metals

...tal oxides and how the rate of this interaction is influenced by size" Bose said. So far, the research shows that particles of similar shape but different size down to 10 nm show a 10-fold difference in bioreduction rates. Smaller nanoparticles show a lower rate of reduction than larger nanoparticles after no...

New dyslexia theory blames 'noise'

...olved in processing fast visual information - that influenced dyslexia research for decades. The researchers found that the magnocellular pathway works normally both in children with dyslexia and in adult poor readers - as long as visual or aural noise is low. As external noise goes up, the same subjects...

Mirrors in the mind: New studies elucidate how the brain reflects onto itself the actions of others

...bing actions performed by the mouth, hand, or foot influenced cortical neurons that are activated by the sight o...uggestions that the motor system may have strongly influenced developments in human social evolution. ...

Bitter taste identifies poisons in foods

...port that bitter taste perception of vegetables is influenced by an interaction between variants of taste genes and the presence of naturally-occurring toxins in a given vegetable. The study appears in the September 19 issue of Current Biology. Scientists have long assumed that bitter taste evolved as a defens...

Quality not quantity important for immune response to HIV

...e effective it would be. It is this dogma that has influenced development of HIV vaccines, with the vaccines attempting to stimulate a large response. However, Professor Goulder and colleagues found that the type of CTC response is crucial and that some types of response may have a negative effect and could ...

New data from NIH lab confirms protocol to reverse type 1 diabetes in mice

...wed that the degree of spleen cell contribution is influenced by mouse age at the start of treatment. Spleen cells appear to contribute to islet recovery more in mice who are older and with more advanced diabetes compared with younger mice with less advanced diabetes, in which regeneration of remaining islets ...

Restoring tamoxifen sensitivity in resistant breast cancer cells

...r-positive cancers, cancer cell growth is strongly influenced by estrogen. Tamoxifen works by binding to estrogen receptors in place of estrogen and blocking the signals that lead to cell division. Initially, tumor growth slows or stops altogether. With continued tamoxifen treatment, however, the estrogen rec...

Recurrence of a flu pandemic similar to infamous 1918 flu could kill 62 million

... countries. Other unique community attributes that influenced mortality are still unknown. Nevertheless, Murray is clear about the study's implication: "Quite simply, much more of the international attention needs to focus on how we can protect the poorer countries should this virus reoccur." ...

'Mindless autopilot' drives people to underestimate food decisions

...sions is a point where a person can be unknowingly influenced by environmental cues." When Wansink and Jeffery Sobal, Cornell professor or nutritional sciences, asked 139 university staff and students to estimate how many decisions they make about food each day, the average response was 15. However, when the ...

Scientists identify 36 genes, 100 neuropeptides in honey bee brains

...this sentence. The activities of these neurons are influenced by the sea of peptides they are bathed in. "Neuropeptides undoubtedly play a role in the bees' shift from working in the hive to foraging, displaying and interpreting dance language, and in defending the hive," said Jonathan Sweedler, a William H. ...

Leptin has powerful effect on reward center in the brain

...en in the animals," DiLeone said. Food intake is influenced by signals that travel from the body to the brain. Leptin is one of the molecules that signals the brain to modulate food intake. It is produced in fat cells and informs the brain of the metabolic state. If animals are missing leptin, or the leptin r...

No-mow grass may be coming to your yard soon

...nes involved in growth and development that can be influenced by brassinosteroids, Chory noted. "Many of these genes are predicted to be involved in growth, like cell wall metabolism. Their up-expression would be predicted to promote cell expansion," according to Chory. The work of other groups, she noted, ...

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