Daily non-political popular news in brief.
Individual differences in a clock gene predict decline of performance during sleep deprivation
03-08-2007 · EurekAlert!People are known to differ markedly in their response to sleep deprivation, but the biological underpinnings of these differences have remained difficult to identify. Researchers have now found that a genetic difference in a so-called clock gene, PERIOD3, makes some people particularly sensitive to the effects of sleep deprivation.
Read more »
Keywords: individual, differences, clock, gene, predict, decline, performance, sleep, deprivation, difference
« Previous | Next »
Similar news on "Individual differences in a clock gene predict decline of performance during sleep deprivation":
- 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.
Similar news · Read more »
- Hospital performance measures may not accurately reflect quality of care or predict patient outcomes
12-12-2006 · EurekAlert!
A comparison of hospitals with high and low Medicare performance measures found little difference in the rate of death for three common conditions at the hospitals, indicating that the measures may not accurately reflect patient outcomes, according to a study in the December 13 issue of JAMA.
Similar news · Read more »
- Sour taste make you pucker? It may be in your genes
07-11-2007 · EurekAlert!
Scientists at the Monell Chemical Senses Center report that genes play a large role in determining individual differences in sour taste perception. The findings may help researchers identify the still-elusive taste receptor that detects sourness in foods and beverages, just as recent gene studies helped uncover receptors for sweet and bitter taste.
Similar news · Read more »
- Election 2008: Sleep deprivation a tough opponent for presidential candidates
02-01-2008 · EurekAlert!
Keeping a nonstop schedule of personal appearances, interviews and strategy sessions, both the presidential candidates and their campaign staff will struggle to find adequate time for sleep, especially with Super Tuesday just days away. As a result, sleep deprivation is likely to make its mark on the campaign by causing performance impairments that could prove costly.
Similar news · Read more »
- Research team identifies human 'memory gene'
10-19-2006 · EurekAlert!
Researchers at the Translational Genomics Research Institute (TGen) today announced the discovery of a gene that plays a significant role in memory performance in humans. The study details how researchers associated memory performance with a gene called Kibra in over 1,000 individuals -- both young and old -- from Switzerland and Arizona. This study is the first to describe scanning the human genetic blueprint at over 500,000 positions to identify cognitive differences between humans.
Similar news · Read more »
- Jefferson scientists show gene reverts cancer genes to normal, predicts breast cancer prognosis
10-31-2006 · EurekAlert!
Scientists have shown that the activity of a gene that commandeers other cancer-causing genes, returning them to normal, can predict the prognosis of an individual with breast cancer. They looked at cancer cells from more than 2,000 breast cancer patients and found that this commandeering or "organizing" ability is increasingly lost in cancer cells and associated with the progression of disease. The more the gene is expressed in breast cancer, the better the patient did.
Similar news · Read more »
- Sleep quantity affects morning testosterone levels in older men
04-01-2007 · EurekAlert!
The testosterone levels of healthy men decline as they get older. As sleep quality and quantity typically decrease with age, objectively measured differences in the amount of sleep a healthy older man gets can affect his level of testosterone in the morning.
Similar news · Read more »
- Gene expression patterns predict rapid decline in idiopathic pulmonary fibrosis patients
05-30-2007 · EurekAlert!
University of Pittsburgh researchers have identified a specific genetic profile in a group of idiopathic pulmonary fibrosis (IPF) patients that indicates a far more rapid progression to complete pulmonary failure and death without a lung transplant in comparison with other patients. In collaboration with pulmonary scientists in Mexico and California, Pittsburgh researchers found 437 differentially expressed genes. Most IPF patients live about five years following diagnosis with the chronic lung disease.
Similar news · Read more »
- Individuals and populations differ in gene activity levels, not just genes
03-01-2007 · EurekAlert!
Much like how a person's genetic code differs from other individuals, the level at which those genes are activated in the body differs from one person to another, scientists have learned. And though some of those differences in gene activity are seen between different populations -- Asians versus Europeans, for instance -- more of those variations are due to individual-level factors, further obscuring the biological meaning of "race."
Similar news · Read more »
- Inherited individual variations influence patterns of gene shuffling
01-31-2008 · EurekAlert!
The first large-scale, high-resolution study of human genetic recombination has found remarkably high levels of individual variation in genetic exchange, the process by which parents pass on a mosaic-like mixture of their genes. The high-resolution enables the researchers to map out the precise location of where these genetic exchanges occur and assess the differences in recombination rates between individuals.
Similar news · Read more »
