Daily non-political popular news in brief.

Circadian gene helps the brain predict mealtime

10-23-2006 · EurekAlert!

By investigating how animals can predict the timing of food availability, researchers have identified the first gene critical for anticipation of mealtime. This gene, called Period 2, is a key component of the circadian time-keeping system.

Keywords: circadian, gene, brain, predict, mealtime

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Mayo Clinic study unveils unprecedented method to predict ALS, Parkinson's disease
01-15-2008 · EurekAlert!
A new Mayo Clinic study details an unprecedented method to predict brain aging disorders such as amyotrophic lateral sclerosis and Parkinson's disease. Investigators studied common variations within axon guidance pathway genes and identified several gene variations (DNA fingerprints) that collectively predicted people who are at a high risk for ALS (2,000 times greater than the average risk).
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Gene predicts sleepy performance
03-24-2007 · Science News Online
Variants in a circadian-rhythm gene predict how well people perform mental tasks when sleep deprived.
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Researchers discover possible markers for mental illness
12-03-2007 · EurekAlert!
Researchers have discovered natural genetic differences that might help predict the most effective antipsychotic drugs for particular patients with mental disorders such as schizophrenia, Parkinson's and drug addiction. They found the differences in the gene for a molecule called the dopamine D2 receptor, a protein present on brain cells that are sensitive to the neurotransmitter dopamine.
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Preclinical study links gene to brain aneurysm formation
08-07-2007 · EurekAlert!
University of Cincinnati neurovascular researchers have identified a gene that -- when suppressed or completely absent -- may predispose a person to brain aneurysms. Todd Abruzzo, MD, and his colleagues demonstrated that "knocking out" a gene known as endothelial nitric oxide synthase in an animal model led to intracranial aneurysm formation in 33 percent of study subjects. Scientists say this suggests that the gene may play an important role in the development of intracranial aneurysms.
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Inheriting A Tendency To Brain Infection
09-29-2006 · ScienceDaily
New findings from researchers in France support the controversial idea that an error in a single gene is enough to dramatically alter an individual's susceptibility to certain infections.
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Common gene version optimizes thinking -- but with a possible downside
02-08-2007 · EurekAlert!
Most people inherit a version of a gene that optimizes their brain's thinking circuitry, yet also appears to increase risk for schizophrenia, a severe mental illness marked by impaired thinking. The seeming paradox emerged from the first study to explore the effects of variation in the human gene for a brain master switch, DARPP-32. The gene impacts the way two key brain regions exchange information, affecting a range of functions from general intelligence to attention.
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Linking stress and senility
07-07-2007 · Science News Online
A gene that's active in the brain may help explain why emotional stress seems to increase a person's likelihood of getting Alzheimer's disease.
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Gene triggers obsessive compulsive disorder-like syndrome in mice
08-22-2007 · EurekAlert!
Using genetic engineering, researchers have created an obsessive-compulsive disorder-like set of behaviors in mice and reversed them with antidepressants and genetic targeting of a key brain circuit. The study, by National Institutes of Health-funded researchers, suggests new strategies for treating the disorder.
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Gene controlling circadian rhythms may be involved in onset of bipolar disorder
03-19-2007 · EurekAlert!
Disrupt the gene that regulates the biological clocks in mice and they become manic, exhibiting behaviors similar to humans with bipolar disorder, UT Southwestern Medical Center researchers have found.
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Study points to a genetic link for schizophrenia
02-20-2007 · Massachusetts Institute of Technology (MIT)
Gene mutations governing a key brain enzyme make people susceptible to schizophrenia and may be targeted in future treatments for the psychiatric illness, according to MIT and Japanese researchers.
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