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: Stanf
'/>"/>

Copyright©2007 ScoutNews,LLC.
All rights reserved

Page: 1 2

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:12/20/2014)... December 21, 2014 MissyDress, a distinguished ... all prom lovers. The business has drastically cut prices ... dresses to everyone until Jan. 30, 2015. Many of ... sweetheart dresses, V-neck dresses, lace dresses, and more. , ... not there every day. Whether A-line princess prom dresses ...
(Date:12/20/2014)... LunaDress has recently announced its 2015 collection of ... on all of its special occasion dresses & wedding apparel. ... wedding gown. If you have no idea of what to ... different wedding dress styles and our dress experts are here ... current special offer, up to 80% off," the CEO of ...
(Date:12/20/2014)... (HealthDay News) -- The holidays can be anything but ... fresh trees, scented candles and other allergy triggers. ... that have been packed away in dank basements or ... asthma patients," Dr. Rachna Shah, an affiliate faculty member ... in Loyola news release. Shah, who is also ...
(Date:12/20/2014)... (PRWEB) December 20, 2014 Angeldress.co.uk, the ... something great for worldwide dress fans. The company has ... news and information. For the holiday season, Angeldress ... about special wedding apparel. , Angeldress.co.uk prides itself in ... unsurpassed level of service. All the company’s outfits are ...
(Date:12/20/2014)... 2014 The aftermath of the November 24th ... not only in Hollywood, but worldwide. As reported ... ripples of that attack are starting a finger-pointing game which ... But they are not the only ones affected, regular ... for some embarrassing times ahead, agents and lawyers could be ...
Breaking Medicine News(10 mins):Health News:MissyDress: The Prices of Prom Dresses Just Reduced 2Health News:2015 Collection of Wedding Dresses from LunaDress Online on Sale Now 2Health News:Holiday Trimmings Can Trigger Allergies 2Health News:Trendy Professional Wedding Apparel Recommended by Angeldress Blog 2Health News:Sony Pictures Hack Perfect Example of the Reach a Single Cyber Attack Can Have 2Health News:Sony Pictures Hack Perfect Example of the Reach a Single Cyber Attack Can Have 3Health News:Sony Pictures Hack Perfect Example of the Reach a Single Cyber Attack Can Have 4Health News:Sony Pictures Hack Perfect Example of the Reach a Single Cyber Attack Can Have 5
... June 22 /PRNewswire-Asia/ -- 11th of June 2009, marks ... as the Optical industry,in Korea. Recognizing the importance to ... the optical market in Korea, the Korean Optometric,Association (KOA) ... This partnership will add and build on the partnerships ...
... ... physical therapy, fitness, and performance services, opens its 52nd center in South Elgin. , ... Oak Brook, IL (Vocus) June 22, ... 52nd center in South Elgin. The South Elgin center is located at 722 N. ...
... 22 With the outbreak of H1N1 influenza in several ... which can effectively prevent the disease from spreading. The discussion ... a hot topic around the world. In fact, the vaccine ... in China and globally for quite some time now. , ...
... The largest analysis of its kind has found that Caucasians ... to develop a rare bone and soft tissue cancer called ... are more likely to die than women. Published in the ... journal of the American Cancer Society, the study indicates that ...
... given to transplant recipients to suppress their immune systems, has ... at the Emory Vaccine Center have discovered. In experiments ... formation of memory CD8 T cells, which enable the immune ... upon a second encounter. The results were published online ...
... increasingly derive from competitive sports and endurance training comes with ... most people will enjoy the benefits and pleasures of exercise, ... increase the risk of cardiac arrhythmias and even sudden death, ... , "It,s for this reason that sports medicine has ...
Cached Medicine News:Health News:GfK Asia Expands into Korea Optics Industry Partnership Network 2Health News:GfK Asia Expands into Korea Optics Industry Partnership Network 3Health News:AthletiCo Opens 52nd Physical Therapy Center in South Elgin 2Health News:AthletiCo Opens 52nd Physical Therapy Center in South Elgin 3Health News:Frost & Sullivan Sees Opportunities in Chinese Vaccine Industry 2Health News:Frost & Sullivan Sees Opportunities in Chinese Vaccine Industry 3Health News:Caucasians are at higher risk of developing Ewing's sarcoma than other races 2Health News:Transplant drug stimulates immune memory 2Health News:Atrial fibrillation in endurance athletes still poses problems for sports cardiologists 2Health News:Atrial fibrillation in endurance athletes still poses problems for sports cardiologists 3
(Date:12/19/2014)...  Monarch America Inc. (OTCQB: CANK) ("Monarch America" or ... provide this review of the Company,s recent achievements and ... "Over this past year, we achieved many of our ... to say that Monarch America is in a stronger ... been," stated Eric Hagen , CEO of Monarch ...
(Date:12/19/2014)... Research and Markets ( http://www.researchandmarkets.com/research/942kh3/micro_market ... "Micro Market Monitor: North American Dermatology Diagnostic Devices ... http://photos.prnewswire.com/prnh/20130307/600769 Cosmetic ... has resulted in fueling the overall demand of ... of these dermatology devices is to assist in ...
(Date:12/19/2014)... DIEGO , Dec. 18, 2014  RESMED INC. (NYSE: ... its second quarter of fiscal year 2015 results on Thursday, ... close. A press release with ResMed,s results will be issued ... host a webcast to discuss operating results and future outlook. ... 1:30 p.m. US Pacific Time and the live webcast of ...
Breaking Medicine Technology:Monarch America Inc. CEO Reviews Recent Achievements and Provides Outlook for 2015 2Monarch America Inc. CEO Reviews Recent Achievements and Provides Outlook for 2015 3Micro Market Monitor: North American Dermatology Diagnostic Devices Market 2Micro Market Monitor: North American Dermatology Diagnostic Devices Market 3ResMed To Announce Second Quarter 2015 Results 2
... Inc. (Nasdaq: IDIX ), a biopharmaceutical company engaged ... of human viral diseases, today announced that two abstracts have ... the European Association for the Study of the Liver (EASL, ... can now be viewed at the EASL website at www.easl.eu. ...
... (Nasdaq: IDIX ) announced today that management will ... Stock Conference on Monday, March 14, 2011 at 12:00 p.m. ... California and at the Barclays Capital 2011 Global Healthcare Conference ... the Loews Miami Hotel, Florida. The live and ...
Cached Medicine Technology:Idenix Announces Data Presentations at the 46th Annual Meeting of the European Association for the Study of the Liver (EASL) 2Idenix Announces Data Presentations at the 46th Annual Meeting of the European Association for the Study of the Liver (EASL) 3
Modular Specimen Filing System has five cells that can hold either slides or tissue cassettes....
... an expanded database containing over 330 ... cards, VITEK 2 Compact offers enhanced ... of time (2 to 14 hours), ... microorganisms that contaminate production areas and ...
... is a comprehensive hemodynamic monitoring and ... lab. Patient demographics, clinical hemodynamic ... procedural information all flow seamlessly into ... repetitive data entry. Both ...
... generation product is a patient monitoring system ... parameters, sensed at the tissue level, reflecting ... tissue by low power light and detects ... tissue. The light is guided to the ...
Medicine Products: