Navigation Links
Mouse Study Uncovers the Roots of Gray Hair
Date:6/16/2011

THURSDAY, June 16 (HealthDay News) -- The roots of gray hair may lie in a particular type of communication between hair follicles and melanocyte stem cells, the cells that make and store the pigments in skin and hair, a new study suggests.

Using mouse models, researchers at NYU Langone Medical Center found that Wnt signaling, already known to control many biological processes, may explain how these stem cells work together to produce hair color and generate hair growth.

"We have known for decades that hair follicle stem cells and pigment-producing melanocycte cells collaborate to produce colored hair, but the underlying reasons were unknown," said Mayumi Ito, assistant professor of dermatology at NYU Langone in a news release from NYU. "We discovered Wnt signaling is essential for coordinated actions of these two stem cell lineages and critical for hair pigmentation."

Researchers found the lack of Wnt activation in melanocyte stem cells leads to de-pigmented, or gray hair. They also showed that abnormal Wnt signaling in hair follicle stem cells prevents hair re-growth. The study's authors concluded their findings could serve as a model for tissue regeneration.

"The human body has many types of stem cells that have the potential to regenerate other organs," noted Ito. "The methods behind communication between stem cells of hair and color during hair replacement may give us important clues to regenerate complex organs containing many different types of cells."

The researchers added the study, published in the June 11 issue of Cell, could help shed light on diseases in which melanocytes are either lost or grow uncontrollably as in melanoma.

More information

The U.S. Library of Congress has more on why hair turns gray.

-- Mary Elizabeth Dallas

SOURCE: NYU Langone Medical Center, news release, June 14, 2011


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Mouse Study Reveals How Smoking Helps Keep People Thin
2. Apples Help Keep Muscles Strong, Mouse Study Finds
3. Scientists create humanized mouse model for hepatitis C
4. Pitt researchers build a better mouse model to study depression
5. Mouse study turns fat-loss/longevity link on its head
6. Fox Chase researchers report that naproxen reduces tumors in a mouse model of colon cancer
7. Sleeping through danger: the dormouse approach to survival
8. Mouse Sperm Successfully Grown in Lab, Researchers Say
9. Mouse cancer genome unveils genetic errors in human cancers
10. Malaria drug slows pancreatic cancer growth in mouse models
11. New mouse model explains common pediatric brain tumor
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/27/2016)... ... May 27, 2016 , ... Southland Log Homes , ... American timber frame barn kits, which can be found on its website at SouthlandLogHomes.com. ... American barn plans, and they highlight the craftsmanship of timber post and beam construction. ...
(Date:5/27/2016)... ... May 27, 2016 , ... With over 60 percent ... the demand for a sustainable product to aid in the rehabilitation process has steadily ... the recovery of individuals with hemiplegia due to stroke. , Ekso Bionics has now ...
(Date:5/27/2016)... ... ... Beleza Medspa has initiated a new program to assist active ... time that Coolsculpting is being used for for more than just cosmetic purposes. ... the prescribed body-fat standard, measured by the circumference-based tape method. The tape-test is ...
(Date:5/27/2016)... ... ... With a team of certified experts, Validation Center is ... GMP accreditation, Validation Center is also a registered authority of the international system ... Validation Center is ISO17025 accredited and only offers its clients the latest technology, ...
(Date:5/26/2016)... ... May 26, 2016 , ... Cabot ... of defective respirators, according to court documents and SEC filings. A jury ... Becky Tyler v. American Optical Corporation, Case No. BC588866, Los Angeles County, California. ...
Breaking Medicine News(10 mins):
(Date:5/25/2016)... May 25, 2016 As illustrated ... earlier this month, the numbers and momentum of cannabis ... climb into the billions, more research and development push ... Edition State of Legal Marijuana Markets Report  from from ... firm, much of the increase in sector is attributed ...
(Date:5/25/2016)... 25, 2016 ReportsnReports.com adds ... report that provides an overview on therapeutic pipeline ... various stages, therapeutics assessment by drug target, mechanism ... molecule type, along with latest updates, and featured ... players involved in the therapeutic development for Chronic ...
(Date:5/24/2016)...  Diana Russell suffers from a form of rheumatoid ... out.  This disease has put her in a wheelchair, ... grandchildren to leave her home.  Because of the size ... the wheelchair.  So if there is a family function, ... left to wait for the bus. Photo ...
Breaking Medicine Technology: