How Genes Lead To Baldness In Men?
One of the major reasons for male hair loss is androgenetic alopecia which is also known as common baldness. Males have a hormone called dihydrotestosterone (DTH) that in turn affects hair follies in their scalp. The hair follies are believed to be genetically susceptible. Thus, it can be said that common baldness occurs due to the presence of particular genes. Men inherit these genes from their parents.
Basically a gene represents a unit of DNA and is positioned on a chromosome. It is a unit of hereditary instruction that is encoded chemically. Every human being has 23 pairs of chromosome and a child acquires a set of chromosome of each of his parents. Out of these 23 pairs, only one pair is linked to sex but the remaining 22 pairs are not sex linked. Sex related chromosomes are X chromosome and Y chromosome. The pair of remaining 22 chromosomes which have nothing to do with sex are also called autosomal. Various studies have shown that the genes that govern male hair loss are autosomal genes and this is not possible with a single gene. This study has also proved that common baldness can be caused by either parent.
For a long time it has been believed that male hair loss is originated from the family side of the child’s mother. It is because it has been believed that since men inherit X chromosome from his mother thus genes of mother are responsible for male hair loss. However, the studies have proved that baldness or men hair loss is caused by autosomal genes; this notion has automatically been proved incorrect. It is further shown that trait of men hair loss can be inherited from either of the parent. These genes can affect male hair loss in many ways. It can decrease the size of their follies which can in turn lead to growth of shorter hair permanently in men. These genes can also affect the normal growth of hair in men. Gradually this condition leads to baldness after a period of time.
Nevertheless, Genes cannot be blamed completely for men hair loss. Just because men have genes that are responsible of their hair loss does not mean it is bound to affect them. The gene would express itself only the presence of other factors that can also be responsible for hair loss. Some of these factors are age, hormones, stress and other similar factors. How and in what way these factors will affect vary from individual to individual.
With these findings, scientists have been trying to develop a therapy that can treat problem of male hair loss. The drugs that have been developed in the past are capable of maintaining their hair but cannot help in growing new hair follies. Anyways, there are good chances that the therapy to cure problem of male hair loss will be developed soon.
