This website uses its own and third-party cookies. Some of these cookies are used to develop analytical statistics of visits to the webpage, others to manage advertising or even others are necessary for the correct management of the site. If you continue to browse or click in accept we consider you accept the conditions for their use. You can get more information, or learn how to change the settings in our cookies policy?
Versión Española Versión Mexicana Ibercampus English Version Version française Versione italiana

30/5/2017  
    Ibercampus  | Editorial Board | Who we are | Ideology | Contact | Advertising rates | Subscription | RSS RSS
Policies
Inclusion policies
R&D
Employment
Economics
Culture
Green strategies
Health
Society and consumer
Sports
Debates
Interviews
Education
Grants & internships
Training
Trends
Enterprises & CSR
 Enterprises & CSR
AEGON
AIR LIQUIDE
ALCATEL-LUCENT
ALLIANZ
ARCELORMITTAL
ASSICURAZIONI GENERALI
AXA
BANCO SANTANDER
BASF
BAYER
BBVA
BNP PARIBAS
CARREFOUR
DAIMLER AG
DEUTSCHE BANK
DEUTSCHE BÖRSE
DEUTSCHE TELEKOM
E.ON
ENEL
ENI
FORTIS
FRANCE TÉLÉCOM
GROUPE DANONE
IBERDROLA
INDITEX
ING GROUP
INTESA SANPAOLO
L'ORÉAL
LVMH
MUNICH RE
NOKIA
PHILIPS
RENAULT
REPSOL YPF
RWE
SAINT GOBAIN
SANOFI-AVENTIS
SAP AG
SCHNEIDER ELECTRIC
SIEMENS AG
SOCIÉTÉ GÉNÉRALE
SUEZ
TELECOM ITALIA
TELEFÓNICA
TOTAL S.A.
UNICREDIT
UNILEVER
VINCI
VIVENDI
VOLKSWAGEN

HEALTH
Ageing

Scientists uncover why hair turns gray


A team of European scientists have finally solved a mystery that has perplexed humans throughout the ages: why we turn gray. Despite the notion that gray hair is a sign of wisdom, these researchers show that wisdom has nothing to do with it.
Ibercampus 18/4/2017 Send to a friend
Comparte esta noticia en TwitterFacebookTwitterdel.icio.usYahooRSS

Going gray is caused by a massive build up of hydrogen peroxide due to wear and tear of our hair follicles. The peroxide winds up blocking the normal synthesis of melanin, our hair's natural pigment.

"Not only blondes change their hair color with hydrogen peroxide," said Gerald Weissmann, MD, Editor-in-Chief of The FASEB Journal. "All of our hair cells make a tiny bit of hydrogen peroxide, but as we get older, this little bit becomes a lot. We bleach our hair pigment from within, and our hair turns gray and then white. This research, however, is an important first step to get at the root of the problem, so to speak."

The researchers made this discovery by examining cell cultures of human hair follicles. They found that the build up of hydrogen peroxide was caused by a reduction of an enzyme that breaks up hydrogen peroxide into water and oxygen (catalase). They also discovered that hair follicles could not repair the damage caused by the hydrogen peroxide because of low levels of enzymes that normally serve this function (MSR A and B). Further complicating matters, the high levels of hydrogen peroxide and low levels of MSR A and B, disrupt the formation of an enzyme (tyrosinase) that leads to the production of melanin in hair follicles. Melanin is the pigment responsible for hair color, skin color, and eye color. The researchers speculate that a similar breakdown in the skin could be the root cause of vitiligo.

"As any blue-haired lady will attest, sometimes hair dyes don't quite work as anticipated," Weissmann added. "This study is a prime example of how basic research in biology can benefit us in ways never imagined."


Other issues Health
Salty diet makes you hungry, not thirsty
Study shows real-world massage is effective treatment for low back pain
Tougher food inspections from farm to fork
Sleep trackers can prompt sleep problems
Living with children may mean less sleep for women, but not for men
´Research´ is the Theme for Rare Disease Day 2017
Can weight gain in pregnancy cause childhood obesity?
Europe promotes a better use of antibiotics
Too much sitting, too little exercise may accelerate biological aging, study finds
Children gain more weight when parents see them as ´overweight´, study finds

Subscribe free to our newsletter
Vanity Fea
THE CIRCLE, closer to Completion
José Ángel García Landa
Financial inclusion
Financial Education For All!
Carlos Trias
Brusselian Lights
European elections (I): which words are more used in the European political manifestos?
Raúl Muriel Carrasco
Humor and Political Communication
Comisión de Arbitraje, Quejas y Deontología (Spain) (3) You can´t be too careful
Felicísimo Valbuena
Want your own blog? Want to be read by universities?
Find out here
Books
Millionaire Teacher "The Nine Rules of Wealth You Should Have Learned in School"
​​​​​​​Alvin Roth: "Who Gets What ― and Why"
Too Much Staff "Capitalism in Crisis"
The Crowdfunding Handbook "Using Equity Funding Portals to Raise Money for Your Small Business"
The Intelligent Enterprise in the Era of Big Data
Paul A. Shotton, Paul G. Nixon: Lobbying the European Union "Changing Minds, Changing Times"
Theses and dissertations
1 THE CIRCLE, closer to Completion
2 Millionaire Teacher "The Nine Rules of Wealth You Should Have Learned in School"
3 China to launch it´s own version of Wikipedia in 2018
4 Eating chocolate may decrease risk of irregular heartbeat
5 When are they ready to leave the nest?
6 Fashion mannequins communicate ´dangerously thin´ body ideals, study concludes
7 CO2 emissions in the EU slightly decreased compared with 2015
8 Bilingual people read is conditioned by the languages they speak
9 Ultimate app enhances movie or series watching experience
10 New European Union support for education in Syria
Legal Advise | Privacy Policy | Editorial Board | Who we are | Ideology | Contact | Advertising rates | RSS RSS