Navigation Links
Getting to the roots of hair loss
Date:2/24/2008

A healthy individual loses around a hundred hairs a day. Nothing to worry about as long as they are constantly replaced and the losses occur evenly around the whole scalp. But when hair loss goes well beyond this level it can become quite a problem for those affected not only superficially in terms of looks but also psychologically. A breakthrough on the hair front has now been made by an international research team headed by scientists at the University of Bonn. After six years of research they have succeeded in identifying a gene that is responsible for a rare hereditary form of hair loss known as Hypotrichosis simplex. The scientists are the first to identify a receptor that plays a role in hair growth. They now hope that their research findings will lead to new therapies that will work with various forms of hair loss. The study, due to appear in the March edition of "Nature Genetics", can be accessed in advance on the internet (http://dx.doi.org/10.1038/ng.84) from January 24 (1pm US Eastern Time).

"Although Hypotrichosis simplex is very uncommon, it may prove critical in our search for an understand of the mechanisms of hair growth," says project leader Dr. Regina Betz from Bonn's Institute of Human Genetics, summing up the research results. The disease is inherited and affects both men and women. Sufferers generally begin to go bald during childhood. The process of hair loss (alopecia) then advances with age, especially around the scalp.

The cause of Hypotrichosis simplex in the form examined in this project is a genetic defect. It prevents certain receptor structures on the surface of hair follicle cells from being correctly formed. It has been found that when messengers from outside bind to these receptors they trigger a chain reaction in the cell interior which is apparently needed for the hair follicle to function normally. Such a receptor that plays a specific role in hair growth was previously unknown to scientists.

Key to new drugs to combat hair loss

As Professor Dr. Markus Nthen, who holds the Chair of Genetic Medicine at Bonn University's Life & Brain Centre, explains, "The defective receptor structure falls into the category of what are known as G-protein-coupled receptors." This is good news, because, "they are particularly well suited as points of impact for drug treatments." The researchers have also been able to identify an endogenous messenger that binds in the hair follicle to the receptor. This opens up opportunities for developing new active agents. Looking to the future, Professor Dr. Ivar von Kgelgen from Bonn's Institute of Pharmacology and Toxicology says, "We can now search selectively for related substances that may be used in therapies for hair loss." The exciting possibility here is that such medicines will be able to benefit patients suffering from very different types of hair loss.

Another member of the project team has been the dermatologist Dr. Khalid Al Aboud from the King Faisal Hospital in Makkah, who was responsible for the clinical case studies. In 2002, he and his colleagues examined a Saudi-Arabian family with Hypotrichosis simplex. The medical scientists were able to analyse DNA samples from the parents and from nine of their ten children including four sufferers. The family's genetic material gave the research project team the key to understanding some of the fundamental mechanisms of hair growth and hair loss. The researchers now hope that this individual genetic case will lead to developments that can benefit a far wider circle of patients in the future.


'/>"/>

Contact: Dr. Regina C. Betz
regina.betz@uni-bonn.de
49-228-287-22344
University of Bonn
Source:Eurekalert

Related medicine news :

1. Pay-For-Performance Not Getting a Red-Carpet Reception in Arizona
2. Chemical Linked to Reproductive Harm Is Getting Into Babies From Shampoo, Lotion and Powder, New Study Suggests
3. Acne And Rosacea Getting You Down? Laser, Light And Cosmetic Treatments Give Patients A Much-Needed Boost
4. NFL Linemen Predisposed to Cardiovascular Disease; Early Detection is Key to Getting and Staying Healthy
5. ER Wait Times Getting Longer
6. Teens getting help for suicidal behavior from an online community
7. New meal planning website launches just in time to help todays busy, health-conscious families and individuals to beat the odds when it comes to keeping their New Years resolutions around eating healthier and getting organized
8. ICU Patients Not Getting Enough Sleep
9. If You Are 50 and Over, Make Getting Screened for Colorectal Cancer Your New Years Resolution
10. AUDIO from Medialink and Philips: Getting Rid of the Uninvited Holiday Guests on Your Toothbrush
11. Fewer Women Getting Mammograms
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/26/2017)... ... 26, 2017 , ... RawTrition now brings you BioEnergy which is a powder ... , RawTrition is taking nutrients to the next level! The superfoods ... its raw form (unlike the synthetically made options that are on the market). , ...
(Date:4/25/2017)... ... ... Bellus Medical, a leader in medical aesthetics, recently acquired ... photodynamic cosmetics (PDC). , Allumera® is the first PDC cream specifically formulated to ... minimize the appearance of pores – all with minimal downtime and results that ...
(Date:4/25/2017)... IN (PRWEB) , ... April 25, 2017 , ... ... D.C., CEOs, CFOs and HR decision-makers are preparing for how his administration could ... Financial will provide insight into what changes are most likely to make it ...
(Date:4/25/2017)... Switzerland (PRWEB) , ... April 25, 2017 , ... ... innovation targets, they rely on contracted partners to help with process innovation in ... of combined drug formulation experience along with state-of-the-art analytical equipment in support of ...
(Date:4/25/2017)... ... April 25, 2017 , ... Somnoware, a leading ... patient care management module. Using this new feature, sleep physicians can now predict ... on continuous positive airway pressure (CPAP), oral, or other forms of sleep apnea ...
Breaking Medicine News(10 mins):
(Date:4/20/2017)... , April 20, 2017 NeuroVive Pharmaceutical ... today announced positive preclinical results demonstrating anti-fibrotic ... for non-alcoholic steatohepatitis (NASH), in an additional ... NV556 has previously shown similar anti-fibrotic ... Today, NeuroVive,s scientists present novel data demonstrating ...
(Date:4/19/2017)... -- Cardiology devices segment is anticipated to reach the highest ... Devices segment is likely to create absolute $ opportunity of ... 2017. By the end of 2027, Cardiology Devices segment is ... Mn, expanding at a CAGR of 18.4% over the forecast ... Pacific reprocessed medical devices market in terms of ...
(Date:4/19/2017)... , April 19, 2017 Global Surgical Drainage ... are tubes used to remove excess liquid and air. ... pus, urine, bile or lymph. Surgical drains are used ... such as orthopedics surgery, cardiovascular surgery, neurosurgery, plastic surgery ... post-surgery to prevent accumulation of fluid e.g. blood or ...
Breaking Medicine Technology: