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In the case of women, mean circulating DHT levels have been found to be about 9 ng/dL (0.3 nmol/L) in premenopausal women and 3 ng/dL (0.1 nmol/L) in postmenopausal women. [5] There was no variation in DHT levels across the menstrual cycle in premenopausal women, which is in contrast to testosterone (which shows a peak at mid-cycle). [5]
The most common cause is androgenetic alopecia, also known as male pattern or female pattern hair loss due to the effects of dihydrotestosterone (DHT) on the hair follicles. A variety of factors may lead to this condition such as hormonal effects , age, diet, autoimmunity , emotional stress, physical stress, drug effects, genetics , or infections .
Aromatase excess syndrome (AES or AEXS) is a rarely diagnosed genetic and endocrine syndrome which is characterized by an overexpression of aromatase, the enzyme responsible for the biosynthesis of the estrogen sex hormones from the androgens, in turn resulting in excessive levels of circulating estrogens and, accordingly, symptoms of hyperestrogenism.
Risk Factors for Hair Loss in Women. There are quite a few risk factors for hair loss in women. They include: Age. FPHL usually develops around midlife and continues to progress as you get older.
Female pattern hair loss . Also known as androgenetic alopecia, female pattern hair loss (FPHL) will affect 40 percent of women by age 50, according to Journal of the American Academy of ...
Male pattern baldness (androgenetic alopecia) is a common issue that can happen to men of all ages. It can cause diffuse hair loss across the entire scalp, a receding hairline, a bald patch, or a ...
5α-Reductase inhibitors (5-ARIs), also known as dihydrotestosterone (DHT) blockers, are a class of medications with antiandrogenic effects which are used primarily in the treatment of enlarged prostate and scalp hair loss. They are also sometimes used to treat excess hair growth in women and as a component of hormone therapy for transgender ...
Two of three isozymes of 5αR can catalyze the transformation of T to DHT, but it is only 5αR2D that causes 46XY, DSD. 5αR2 is encoded by the gene SRD5A2 which is located on the short arm of chromosome 2 and contains five exons and four introns. 5αR2 consists of 254 amino acid residues with reported mutations at 67 of them with multiple different mutations at some residues.
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