Vitamin D has a variety of actions in the body. It binds to the vitamin D receptor (VDR), which then binds to the retinoid X receptor (RXR) and activates the expression of numerous genes. Through this mechanism, vitamin D promotes calcium absorption
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Satellite imagery is giving biologists a whole new perspective on the phenomena they study.
Bucknell University mammalogist DeeAnn Reeder raises nets high into the darkened forest canopies of South Sudan to catch bats.
In late June 2009, a small group of mountain gorillas in Rwanda’s Volcanoes National Park began to fall ill. One by one, 11 of the dozen apes started exhibiting severe respiratory problems. An investigation led by wildlife veterinarian Jean-Felix Kin
In fewer than 15 years, nanomedicine has gone from fantasy to reality.
Isolating specific cell types from a mass of plant or animal tissue is laborious and tricky. To study epigenetic changes and genes that are expressed differently in different cell lineages—such as cancer cells versus normal cells, or the two types of
Meet some of the finalists of this year's Best Places to Work in Academia survey. Read the full story. [gallery]
Recent clinical trials have reignited the interest in simple anti-inflammatory drugs like aspirin for controlling the inflammation associated with cancer. The results suggest that these drugs reduced the risk of relapse as well as cancer formation ac
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