Biological Clocks

Bioclocks work by controlling chromosome coiling

harminka — Thu, 22 Nov 2007 06:09:13 -0600

There is a new twist on the question of how biological clocks work.

Researchers figure out what makes a simple biological clock tick

harminka — Tue, 27 Mar 2007 07:09:51 -0500

An interdisciplinary team of researchers at Vanderbilt University has analyzed the simplest known biological clock and figured out what makes it tick. The results of their analysis are published in the March 27 issue of the journal Public Library of Science Biology.

Gene controlling circadian rhythms involved in onset of bipolar disorder

harminka — Tue, 20 Mar 2007 11:31:16 -0500

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.

Steroid hormones regulate body clock

harminka — Tue, 20 Mar 2007 01:12:08 -0500

A central pacemaker structure in the brain controls diurnal rhythms of behavior and hormone release. However, biological clocks are also encountered in almost every cell type (so-called "peripheral"Â clocks), in which they regulate daily changes in cell biology, including cell division. Very little is known to date about how the two clock systems interact.

Animal Studies Of Midnight Sun Land Illuminate Biological Clocks

harminka — Fri, 09 Feb 2007 09:43:26 -0600