Growth Centers of Hairs

The hair follicle is a self-regenerating structure and contains a population of stem cells capable of reproducing themselves. It has been noted, at least in animal models, that a complete hair follicle can be regenerated even after the matrix-containing hair follicle is surgically removed. Although the dermal papilla is not technically part of the actual hair, it remains a very important site for future hair induction, and melanin production in terminal hairs.

Long-term hair removal has been traditionally thought to require that a laser or light source impact on one or more growth centers of hair. The major growth centers have always been thought to be in the hair matrix. However, research evaluating growth of new hair has revealed that the matrix is not the only growth center. New hairs may evolve from the dermal papilla, follicular matrix, or the "bulge." These stem cells are usually found in a well-protected, highly vascularized and innervated area, often in close proximity to a population of rapidly proliferating cells. They always remain intact and, in fact, are left behind after hair plucking. Stem cells are relatively undifferentiated both ultrastructurally and biochemically. They have a large proliferative potential, and are responsible for the long-term maintenance and regeneration of the hair-generating tissue. They can be stimulated to proliferate in response to wounding and certain growth stimuli.

Was this article helpful?

0 0
Hair Loss Prevention

Hair Loss Prevention

The best start to preventing hair loss is understanding the basics of hair what it is, how it grows, what system malfunctions can cause it to stop growing. And this ebook will cover the bases for you. Note that the contents here are not presented from a medical practitioner, and that any and all dietary and medical planning should be made under the guidance of your own medical and health practitioners. This content only presents overviews of hair loss prevention research for educational purposes and does not replace medical advice from a professional physician.

Get My Free Ebook


Post a comment