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Stress really may turn your hair grey, new scientific research shows

Stress really may turn your hair grey, new scientific research shows | Research Capacity-Building in Africa | Scoop.it

There could be some truth in the anecdotal belief that stress can turn your hair grey. The appearance of grey hairs after periods of stress or skin damage could be the result of depletion of stem cells from the base of the hair follicle, according to a new study in mice.


The study, reported in Nature Medicine , may also point to new methods of treatment for skin pigmentation disorders such as vitiligo or piebaldism.

Hair and skin are both pigmented by melanin, produced by cells called melanocytes,which in turn are produced by melanocyte stem cells that live in a region at the very base of the hair follicle called the bulge.

 

Dr Mayumo Ito and colleagues from New York Universityfound that when the skin is damaged or irradiated, these melanocyte stem cells help to repair skin damage by leaving the bulge and travelling to the skin to replenish the store of melanocytes in the outer layer of the skin.

 

However in the process, they leave the bulge without its own supply of melanocyte stem cells.

 

The discovery that the stem cells migrate without replicating is a surprise, says Associate Professor Rick Sturm, principle research fellow at the Institute of Molecular Biosciences at the University of Queensland.

 

"Normally stem cells only stay where they're supposed to be, in the bulge region, the cells divide and the daughter cells go into the hair follicle to create the hair pigment," says Sturm, who was not involved in the study.

 

However in the case of a skin injury or UV exposure, as occurred in this mouse experiment, the stem cells appear to migrate out without replicating. "When that happens, if you lose the stem cells from the bulge region, you lose the capacity to make melanin... so they get this small number of hair follicles around the injury which become white," explains Sturm.


The discovery could lead to treatments for conditions such as vitiligo -- depigmentation of the skin -- and to prevent hyperpigmentation, which is too much pigment in the skin. "If we can know more about how melanocytes migrate from hair follicle area to the epidermis, we may get the ability to promote this process for the treatment of hypopigmentation disorders," says Ito.


"Our results suggest that melanocyte migration from the hair follicle to the epidermis may partly contribute to skin pigmentation, thus inhibition of this migration process may be a novel approach to prevent UV induced hyperpigmentation, or post-inflammatory hyperpigmentation commonly seen after surgery."



Via Dr. Stefan Gruenwald
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Rescooped by Nevermore Sithole from 21st Century Learning and Teaching
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63 Things Every Student Should Know In A Digital World

63 Things Every Student Should Know In A Digital World | Research Capacity-Building in Africa | Scoop.it
63 Things Every Student Should Know In A Digital World


Learn more:


https://gustmees.wordpress.com/2014/10/03/design-the-learning-of-your-learners-students-ideas/


https://gustmees.wordpress.com/2015/07/19/learning-path-for-professional-21st-century-learning-by-ict-practice/



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María Dolores Díaz Noguera's curator insight, February 4, 7:39 AM
63 Things Every Student Should Know In A Digital World
Wendy Zaruba's curator insight, February 4, 9:42 AM

More like 63 Things Everyone should know in this Digital World, interesting.

Charli Wiggill's curator insight, February 4, 12:07 PM

How well are you preparing your students for life in an increasingly digital world?

#MIEExpert #MIEExperts

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Why and How to Create a Positive Work Culture that Delivers Increased Productivity

Why and How to Create a Positive Work Culture that Delivers Increased Productivity | Research Capacity-Building in Africa | Scoop.it
Too many companies bet on having a cut-throat, high-pressure, take-no-prisoners culture to drive their financial success.

Via Daniel Watson
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Marianne Naughton's curator insight, December 2, 2015 6:34 AM

Positive Working Culture

Saadia Asif's curator insight, December 3, 2015 1:45 AM

Your people are your brand - a statement that is often stated but rarely lived up to by companies. The importance of a strong, positive culture within the organization has been a topic of discussion for a while. This article puts some numbers around this as well as providing insight on how we can help develop cultural excellence to deliver the highest levels of productivity.

Stuart Goode's curator insight, December 18, 2015 3:11 PM

We all tend to look to the quick win and forget the long game

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Why Multitasking is Killing Your Brain

Multitasking is Killing Your Brain - Life Tips. - Medium
Many people believe themselves to be multitasking masters, but could it all be in their heads?

Via Daniel Watson
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Lean Master's curator insight, February 3, 2:50 PM
Great advice on how to achieve more through some simple changes.
Jeremy Barton's curator insight, February 4, 1:08 AM

Now this explains a lot!

Content's curator insight, February 5, 1:52 AM

Monotask or Multitasking?

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50 Incredibly Useful Links For Learning & Teaching The English Language

50 Incredibly Useful Links For Learning & Teaching The English Language | Research Capacity-Building in Africa | Scoop.it
50 Incredibly Useful Links For Learning & Teaching The English Language

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Aprendiendo juntos's curator insight, January 25, 4:43 AM

añada su visión ...

Noel Bernabed Cruz Hernandez's curator insight, February 3, 1:16 AM

añada su visión ...

Rescooped by Nevermore Sithole from Keeping up with Ed Tech
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Trends in Learning Report - The Open University

Trends in Learning Report - The Open University | Research Capacity-Building in Africa | Scoop.it

At The Open University, we work to both lead the development of learning technology and also explore and test existing technologies to identify and deploy ways these can be used to make learning even more effective and engaging. We also share our knowledge and insights for use by the wider education and L&D communities.


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Rescooped by Nevermore Sithole from Keeping up with Ed Tech
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Free Technology for Teachers: 82 Google Tools Tutorial Videos

Free Technology for Teachers: 82 Google Tools Tutorial Videos | Research Capacity-Building in Africa | Scoop.it

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M. Van Amelsvoort's curator insight, January 9, 10:48 PM

A nice how-to collection for everything Google and teaching.

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7 tips to turn your eLearning audience into Lifelong Online Learners

7 tips to turn your eLearning audience into Lifelong Online Learners | Research Capacity-Building in Africa | Scoop.it
Lifelong online learners are committed to any learning opportunity. They strive to expand their understanding and become active participants in the process. For this very reason, it is always beneficial to convert your eLearning audience into dedicated and passionate lifelong online learners, regardless of the subject matter or the learning objectives of the eLearning course. The question remains: how do you achieve this in an eLearning environment? How do you leave your mark and encourage them to make the leap, so that they can broaden their educational horizons on an ongoing basis?

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Markers of Quality: The Role of Librarians in Everyday Life Information Literacy | Peer to Peer Review

Markers of Quality: The Role of Librarians in Everyday Life Information Literacy | Peer to Peer Review | Research Capacity-Building in Africa | Scoop.it
This all started when my teenage son reported that Adam Sandler has Ebola. He saw it trending on Facebook. I sighed inwardly and asked if he had looked at the source of the information. Being the son of a librarian he quickly said: “Yes!
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