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The human 5α-reductase-2 gene (SRD5A2) is located on the short arm of chromosome 2 at band 23 and encodes a 254 amino acid protein, called 5α-reductase type 2. The 5α-reductase-1 gene (SRD5A1) is located in band 15 on the short arm of chromosome 5 and encodes a 259 amino acid protein, called 5α-reductase type 1.
5α-Reductase type 1 inactivated male mice have reduced bone mass and forelimb muscle grip strength, which has been proposed to be due to lack of 5α-reductase type 1 expression in bone and muscle. [29] In 5 alpha reductase type 2 deficient males, the type 1 isoenzyme is thought to be responsible for their virilization at puberty. [6]
The human gene SRD5A2 encodes the 3-oxo-5α-steroid 4-dehydrogenase 2 enzyme, also known as 5α-reductase type 2 (5αR2), [5] [6] one of three isozymes of 5α-reductase.. 5αR2 catalyzes the conversion of the male sex hormone testosterone into the more potent androgen, dihydrotestosterone.
The transformation of a phenotypically female child into a phenotypically male adult at puberty, which is reported to be celebrated in Dominican culture, is the result of a genotypic male (with XY chromosomes) born with a deficiency in the enzyme 5α-reductase. 5α-Reductase is responsible for the reduction of testosterone to dihydrotestosterone.
It works by inhibiting the 5-alpha-reductase enzyme that converts testosterone into DHT. ... but supplementing with this B vitamin is most effective for people with a true deficiency, which is ...
A 5-alpha-reductase deficiency results in atypical development characterized by female phenotype or undervirilized male phenotype with development of the epididymis, vas deferens, seminal vesicle, and ejaculatory duct, but also a pseudovagina. This is because testosterone is converted to the more potent DHT by 5-alpha reductase.
If you’re into medical terminology, it’s a type of medication called a 5-alpha reductase inhibitor. In simpler terms, finasteride works by blocking DHT, which helps to slow down or stop the ...
5α-reductase deficiency (5-ARD) – an autosomal recessive condition caused by a mutation of the 5-alpha reductase type 2 gene. It only affects people with Y chromosomes, namely genetic males. People with this condition are fertile, with the ability to father children, but may be raised as females due to ambiguous or feminized genitalia.