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Hormone levels correlated with androgenic alopecia

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Men with androgenic alopecia typically have lower levels of total testosterone, higher levels of unbound/free testosterone, and higher levels of total free androgens including DHT.

5-alpha-reductase is responsible for converting free testosterone into DHT. The genes for 5-alpha-reductase are known. The enzymes are present predominantly in the scalp and prostate. Levels of 5alpha-reductase are one factor in determining levels of DHT in the scalp and drugs which interfere with 5alpha-reductase (such as finasteride, which inhibits the predominant type 2 isoform) have been approved by the FDA as treatments for hair loss.

Sex hormone binding globulin (SHBG), which is responsible for binding testosterone and preventing its bioavailability and conversion to DHT, is typically lower in individuals with high DHT. SHBG is downregulated by insulin.

Increased levels of Insulin Growth Factor-1 (IGF-1) have been correlated to vertex balding.

High insulin levels seem the likely link between metabolic syndrome and baldness. Low levels of SHBG in men and non-pregnant women are also correlated with glucose intolerance and diabetes risk, though this correlation disappears during pregnancy.

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This entry was posted on Friday, October 2nd, 2009 at 10:51 am and is filed under HAIR LOSS FACTS, HAIR LOSS SCIENCE. You can leave a response, or trackback from your own site.

One Response to “Hormone levels correlated with androgenic alopecia”

  1. holtorfmed Says:

    imbalance hormones can be cause of baldness and other problems.the blog gives various reasons of hair fall.one can refer this blog for the solution of hair fall.

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