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How the Body Fights Hair Loss and Extra Hair Growth Simultaneously

Scientists in California say they have discovered how hairs in the body can “communicate” with each other, and believe this may open up potential new treatment options for people with hair loss.

A team at UC Irvine at the University of California says its research has demonstrated that individual hairs are not quite so solitary as was previously thought, and that they are, in fact, regulated by “a single molecular mechanism that adjusts by skin region to ensure efficient hair growth and enable distinct hair densities in the body.”

When this process breaks down or becomes damaged, it says, it can lead to patches of hair loss and, conversely, areas where too much hair starts to grow, such as the face, arms and legs.

Messaging among scalp hairs stops

Hair Growth Wnt pathway hair growth cells talk to each other communicateRelating its findings to Male Pattern Baldness, for example, the team points out that people who have this widely-seen genetic hair loss condition only experience shedding at the front  – a receding hairline – and crown regions, while the back and sides of their head often remains full of hair. In these instances, it is claimed, messaging among scalp hairs appears to stop.

“If communication between non-balding and balding regions can be reactivated, hair growth signals can then start spreading across the entire head skin, preventing regional baldness,” said study co-leader Maksim Plikus, an assistant professor of developmental and cell biology.

They key to potential new hair loss treatments would be to develop drugs which regulate communication channels by using the Wnt signalling pathways. These pathways are made of proteins that pass signals into a cell and tell it how to function, and several studies – including one involving Stanford University in the US – have found them to be vital to the maintenance of hair follicle stem cells.

At present, male hair loss treatment is based around clinically-proven drugs which have been approved by the UK and USA’s medical regulatory boards, the MHRA and the FDA. These are finasteride 1mg and minoxidil and neither’s mechanism interferes with Wnt signalling.

Rather, finasteride 1mg is an oral DHT-blocker – DHT or ‘dihydrotestosterone’ being the hormone which is largely useless after puberty and binds to the follicles located around the top of the head in genetically-predisposed men, gradually weakening them, causing thinning hair, hair loss and sometimes eventual baldness. Belgravia offers appropriate formulations of the vasodilator high strength minoxidil to clients, which can be the perfect compliment to finasteride as, whilst that plays defense, minoxidil goes on the attack, pro-actively promoting hair growth. Why minoxidil is an effective hair regrowth drug is unknown, though it is believed to open up the potassium channels, encouraging increased localised blood flow where the topical solution is applied.

New treatment route?

Time to treat hair loss watchThe Californian research suggests that another way of attacking Male Pattern Hair Loss may one day be possible. Says Plikus:

“In analogy with languages spoken in two neighbouring countries, it was unclear how the back skin ‘talks’ with the belly skin to coordinate the tasks of growing hairs. We showed that although different signalling ‘dialects’ may exist between belly and back skin, for instance, all hairs can understand one another through the use of similar ‘words’ and ‘sentences.’”

The team’s next step is to further analyse how the Wnt pathways (and other signalling factors that they suspect play a part) may be exploited to enhance hair growth.

Any new medications, including hair loss treatments, can take many years to pass all necessary regulatory tests before coming to market. Therefore, as genetic hairloss is a progressive condition, anyone concerned about thinning hair now who is interested in regrowing hair and preventing baldness should consult a professional sooner rather than later. Non-surgical hair loss treatment can only be truly effective on functioning hair follicles. So, once the skin takes on that tell-tale smooth shiny look, it means that the follicles have died and this area is now bald. At any point before this stage, specialists at a respected hair loss clinic will be able to tailor a treatment plan based on the level and pattern of shedding being experienced by each individual.


The Belgravia Centre Hair Loss ClinicThe Belgravia Centre

The Belgravia Centre is the leader in hair loss treatment in the UK, with two clinics based in Central London. If you are worried about hair loss you can arrange a free consultation with a hair loss expert or complete our Online Consultation Form from anywhere in the UK or the rest of the world. View our Hair Loss Success Stories, which are the largest collection of such success stories in the world and demonstrate the levels of success that so many of Belgravia’s patients achieve. You can also phone 020 7730 6666 any time for our hair loss helpline or to arrange a free consultation.


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