Endocrine and local testicular regulation

Ilpo Huhtaniemi

in Oxford Textbook of Endocrinology and Diabetes

Second edition

Published on behalf of Oxford University Press

Published in print July 2011 | ISBN: 9780199235292
Published online July 2011 | e-ISBN: 9780199608232 | DOI:

Series: Oxford Textbooks

Endocrine and local testicular regulation

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The testis has two functions, androgen production and spermatogenesis, and a key role in their regulation is played by the two pituitary gonadotropins, luteinizing hormone and follicle-stimulating hormone (FSH). Other hormones and growth factors also influence testicular function, often by modulating the gonadotropin effects. Moreover, a plethora of local paracrine and autocrine signals within the testis are known. The main testicular hormone, testosterone, a Leydig cell product, regulates spermatogenesis in seminiferous tubules in paracrine fashion. The other functions of testosterone are endocrine, occurring outside the testis.

This chapter summarizes the main hormonal regulatory system of the testis, the hypothalamic–pituitary–testicular axis, and how its effects are modulated by other extratesticular hormones and local testicular factors.

Chapter.  4822 words.  Illustrated.

Subjects: Endocrinology and Diabetes

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