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Molecular & Cell Biology

The new neurons generated as a result of neural damage due to epilepsy show a reduced excitability that could alleviate the disorder, researchers have found. The researchers said their results suggest that therapies for epilepsy aimed at inducing neurogenesis could prove effective in alleviating the disorder.

Biology

If you've ever wondered why your golf swings, fastballs or free throws don't quite turn out the same way each time, even after years of practice, there is now an answer: It's mostly in your head. That's the finding of new research published in the Dec. 21 issue of the journal Neuron by electrical engineers at Stanford University.

Molecular & Cell Biology

You know the sensation. When something has your full attention you see it vividly. And when you don't pay attention, you're liable to miss something important. Now a new Northwestern University study sheds light on how attention operates.

Health & Medicine

The widely used breast cancer drug tamoxifen (Nolvadex®), which can become less effective over time, might retain its full strength indefinitely if used along with a second drug, according to new research in mice conducted by investigators from the National Cancer Institute (NCI), part of the National Institutes of Health, and their partners. The results appear in the December 11, 2006, issue of Cancer Cell*.

Biology

A Vanderbilt researcher has discovered that some stealthy mammals have been doing something heretofore thought impossible -- using the sense of smell under water.

Biology

Increasing levels of inbreeding is a threat against the viabi lity of the Scandinavian wolf population. A study just coming out in the new journal PLoS ONE now demonstrates that inbreeding is not affecting the wolves as badly as expected. The results show that it is the most genetically variable wolf individuals that are recruited into the breeding population. An important consequence of this action of natural selection is that the negative effects of inbreeding are accumulating much slower than previously believed.

Biology
BiologyDecember 21, 2006 02:38 PM

It is well known that animals use song as a way of attracting mates, but researchers have found that gibbons have developed an unusual way of scaring off predators – by singing to them.

Molecular & Cell Biology

Researchers at the University of Minnesota have identified a group of novel genes that are critical in organ development.

Microarray

Researchers at the University of Pennsylvania School of Medicine have pinpointed a key regulatory protein that translates blood flow into gene expression. The investigators showed that in a model of mouse embryonic development a transcription factor called Klf2, which resides in cells that line blood vessels, is activated by rapid, pulsed blood flow, as reported in the December issue of Developmental Cell. Understanding Klf2's role in blood vessel and muscle biology could help with fighting atherosclerosis.