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17β-Hydroxysteroid dehydrogenase III deficiency is a rare autosomal recessive disorder of sexual development condition that is a cause of 46,XY disorder of sex development (46,XY DSD). The impaired testosterone biosynthesis by 17β-hydroxysteroid dehydrogenase III (17β-HSD III), [ 6 ] [ 7 ] presents as atypical genitalia in affected males.
ADAMs (short for a disintegrin and metalloproteinase) are a family of single-pass transmembrane and secreted metalloendopeptidases. [1] [2] All ADAMs are characterized by a particular domain organization featuring a pro-domain, a metalloprotease, a disintegrin, a cysteine-rich, an epidermal-growth factor like and a transmembrane domain, as well as a C-terminal cytoplasmic tail. [3]
ADAM17 is an 824-amino acid polypeptide.[5] [6]ADAM17 has multidomain structure that includes a pro-domain, a metallo-protease domain, a disintegrin domain, a cysteine-rich domain, an EGF-like domain, a transmembrane domain, and a cytoplasmic tail.
This is a list of primary immunodeficiencies (PID), which are immune deficiencies that are not secondary to another condition.. The International Union of Immunological Societies recognizes nine classes of primary immunodeficiencies, totaling approximately 430 conditions.
[26] [27] Mutations are associated with 17β-HSD type X deficiency (also known as HSD10 disease or MHBD deficiency) and mental retardation, X-linked, syndromic 10 (MRXS10), which are characterized by neurodegeneration and mental retardation, respectively. [26] [27] HSD17B11: very little is known on the role/function of this iszyme. [28] [29 ...
[citation needed] In women with mild cases, elevated blood pressure and/or infertility is the presenting clinical problem. 17α-hydroxylase deficiency in genetic males results in moderate to severe reduction of fetal testosterone production by adrenal glands and testes. Undervirilization is variable and sometimes complete.
[22] [23] [24] Furthermore, mutations in the CYP17A1 gene are associated with rare forms of congenital adrenal hyperplasia, in particular 17α-hydroxylase deficiency/17,20-lyase deficiency and isolated 17,20-lyase deficiency. Overall, CYP17A1 is an important target for inhibition in the treatment of prostate cancer because it produces androgen ...
The symptoms of isolated 17,20-lyase deficiency, in males, include pseudohermaphroditism (i.e., feminized, ambiguous, or mildly underdeveloped (e.g., micropenis, perineal hypospadias, and/or cryptorchidism (undescended testes)) external genitalia), female gender identity, and, in non-complete cases of deficiency where partial virilization occurs, gynecomastia up to Tanner stage V (due to low ...