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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Blood-testis barrier in men with idiopathic hypogonadotropic eunuchoidism and postpuberal pituiary failure.

Immature-type Sertoli cells in the testes of idiopathic hypogonadotropic eunuchoidism (17-30 years of age) had no specialized junctions. The specialized Sertoli junctions that blocked the penetration of lanthanum were formed six months to two years after hCG treatment (5000 IU twice a week) in patients of hypogonadotropic eunuchoidism. In two patients with postpubertal pituitary failure (one had a ectopic pinealoma, irradiated one year ago, and the other had a pituitary adenoma, hypophysectomized four years ago), the ultrastructural integrity of these Sertoli junctions was maintained. Therefore, it may be suggested that the development of the blood-testis barrier is dependent on gonadotropins, but the maintenance of the blood-testis barrier is not.[1]

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