Navigation Links
Fish Give Clues to Human Skin Color Changes
Date:12/14/2007

A common gene helps species adapt to new environments, scientists say

FRIDAY, Dec. 14 (HealthDay News) -- Research in the tiny stickleback fish could shed light on skin color changes in humans.

A team at Stanford University School of Medicine has spotted a gene that's responsible for color differences in both species.

While it may seem that the small fish and humans have little in common, they share many similarities, noted study senior author David Kingsley, professor of developmental biology. Both the sticklebacks and humans migrated out of ancestral environments to new locations a few thousand generations ago and both developed new traits -- such as skin color changes -- to be able to live in those new settings.

Kingsley and his colleagues compared DNA from lighter and darker sticklebacks and found that the lighter fish had mutations in a gene called Kit ligand. The researchers then analyzed DNA from people with different skin colors and found that those with lighter skin also had an altered form of the Kit ligand gene.

"It is the same genetic mechanism between organisms that are very different from each other," Kingsley said in a prepared statement.

The Kit ligand gene makes a protein that plays a role in maintaining the melanocyte skin cells that control pigmentation.

While this gene isn't the only factor that determines skin color, it does seem to account for about 20 percent of the pigmentation differences between people of African and European descent, Kingsley said.

The study is published in the Dec. 14 issue of the journal Cell.

More information

The PBS Web site has an article about differences in human skin color.



-- Robert Preidt



SOURCE: Stanford University, news release, Dec. 13, 2007


'/>"/>
Copyright©2007 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Investigators uncover intriguing clues to why persistent acid reflux sometimes turns into cancer
2. Online Epidemic Gives Clues to Bird Flu Spread
3. New knock-out gene model provides molecular clues to breast cancer
4. New clues to breast cancer development in high-risk women
5. Clues to Cell Death Could Fight Disease
6. Genes Give Clues to Newborn Lung Disease
7. Mouse Study Gives Clues to Colitis
8. VivoMetrics LifeShirt Going to South Pole to Uncover Clues to High-Altitude Illness
9. Protein Gives Clues to Pancreatic Cancer
10. A longer-living, healthier mouse that could hold clues to human aging
11. Clues to ensuring anti-HIV drugs are taken in Africa
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/26/2016)... Michigan (PRWEB) , ... June 26, 2016 , ... On ... as sponsor of the 2016 Cereal Festival and World’s Longest Breakfast Table in Battle ... honor of the city’s history as home to some of the world’s leading providers ...
(Date:6/26/2016)... ... June 26, 2016 , ... Many ... been diagnosed with endometriosis. These women need a treatment plan to not only ... approach that can help for preservation of fertility and ultimately achieving a pregnancy. ...
(Date:6/25/2016)... ... June 25, 2016 , ... "With 30 hand-drawn hand gesture animations, FCPX ... Austin - CEO of Pixel Film Studios. , ProHand Cartoon’s package transforms over ... Cut Pro X . Simply select a ProHand generator and drag it above media ...
(Date:6/25/2016)... (PRWEB) , ... June 25, 2016 , ... On Friday, ... presented a Bronze Wellness at Work award to iHire in recognition of their exemplary ... part of the 7th annual Maryland Workplace Health & Wellness Symposium at the BWI ...
(Date:6/24/2016)... ... June 24, 2016 , ... June 19, 2016 is World Sickle Cell ... pain and the benefits of holistic treatments, Serenity Recovery Center of Marne, ... Cell Disease. , Sickle Cell Disease (SCD) is a disorder of the red blood ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... 24, 2016   Pulmatrix, Inc ., (NASDAQ: ... inhaled drugs, announced today that it was added to ... its comprehensive set of U.S. and global equity ... an important milestone for Pulmatrix," said Chief Executive Officer ... of our progress in developing drugs for crucial unmet ...
(Date:6/23/2016)... Research and Markets has announced the addition of ... report to their offering. ... kidney failure, it replaces the function of kidneys by removing ... thus the treatment helps to keep the patient body,s electrolytes ... Increasing number of ESRD patients & substantial healthcare expenditure ...
(Date:6/23/2016)... -- Roche (SIX: RO, ROG; OTCQX: RHHBY) announced that ... PCT (procalcitonin) assay as a dedicated testing solution for ... clearance, Roche is the first IVD company in the ... risk assessment and management. PCT is a ... in blood can aid clinicians in assessing the risk ...
Breaking Medicine Technology: