HOME >> MEDICINE >> NEWS
Insight into how the body tells time

St. Louis, June 24, 2002 You may feel different at the dreary hour of 4 a.m. than you do mid-afternoon at 4 p.m. Now, researchers might understand why. A study from Washington University School of Medicine in St. Louis helps explain how genes dictate our biological clock.

Nearly all living things have a natural rhythm that influences their behavior and physiology. This rhythm typically is "circadian", following a near 24-hour cycle. Driven by an internal clock, a creature's natural rhythm is synchronized to the outside world by external cues, like the sun. So far, the products of eight different genes have been discovered to be essential to the operations of this clock. Scientists believe that these genes, in turn, somehow influence the expression of other genes throughout the body in order to control the timing of behaviors like sleep and wakefulness.

Researchers from three laboratories at the School of Medicine, in collaboration with a team at Affymetrix, have identified 22 genes that appear to be rhythmically regulated by the internal clock of the Drosophila fly and found hundreds more genes that are regulated by both light and the internal clock. The study appears in the June 24 issue of the Proceedings of the National Academy of Sciences.

"Understanding how our internal environment responds to our innate biological clock could help us develop better ways of adjusting to challenging circumstances, like unusual work shifts or jet lag following a long journey," says lead investigator Paul H. Taghert, Ph.D., professor of anatomy and neurobiology.

The fruit fly Drosophila melanogaster is one of the most commonly studied organisms, particularly in the pursuit of understanding biological clocks. In the past, researchers only could estimate the number of genes affected by the eight clock genes. But now that the fly's genome has been fully sequenced, scientists can scrutinize nearly all of the animal's 14,000 genes.

The Washing
'"/>

Contact: Gila Z. Reckess
reckessg@msnotes.wustl.edu
314-286-0109
Washington University School of Medicine
24-Jun-2002


Page: 1 2 3

Related medicine news :

1. Insights from intravascular ultrasound explore treatment benefits
2. Novel Imaging Agent Developed By Penn Researchers Provides Insight Into Brains Message Delivery System
3. Researchers Gain Insights Into Drugs Used For Manic-Depression

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:2/19/2019)... ... February 19, 2019 , ... ... provider of advanced delivery technologies and development solutions for drugs, biologics and ... Biologics, will present at the annual US Bioassay Conference of the BioPharmaceutical ...
(Date:2/19/2019)... , ... February 19, 2019 , ... Hospice of Westchester ... Foundation. The funds will support the heart of its operation, the organization’s Home Care ... many years, and we are grateful for their ongoing generosity,” said Mary K. Spengler, ...
(Date:2/19/2019)... (PRWEB) , ... February 19, 2019 , ... ... and communication services, launched their newest release of their enrollment kit solution, called ... order enrollment materials for their new and existing customers. ONEkit is integrated with ...
(Date:2/19/2019)... ... February 19, 2019 , ... According to a recent ... into their previous work and daily routines; and only 26% of widows return to ... The loss of a spouse is one of the most tragic events that one ...
(Date:2/19/2019)... ARBOR, Mich. (PRWEB) , ... February 19, 2019 , ... ... , the genomic search company, announced today that they have entered into a partnership ... , Diploid provides the most efficient workflow for rare disease diagnostics. Moon allows its ...
Breaking Medicine News(10 mins):
(Date:2/19/2019)... ... February 19, 2019 , ... Dr. Jacqueline Subka, a trusted and ... California, to make an appointment at her Simi Valley office to discuss candidacy for ... they can last 20 years or longer with proper care and restore aesthetics and ...
(Date:2/19/2019)... ... 19, 2019 , ... American Mosquito Control Association (AMCA) volunteers ... grade at the school by conducting hands-on science experiments and activities. Topics include ... emphasis on what students can do to protect themselves from mosquito bites and ...
(Date:2/19/2019)... PARK, Kan. (PRWEB) , ... February 19, 2019 , ... ... leader among products designed to treat and prevent Lice. , Lice outbreaks are surprisingly ... each other. Despite popular belief, having head lice is not a sign of uncleanliness; ...
Breaking Medicine Technology:
Cached News: