Leydig cell


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Related to Leydig cell: spermatogenesis, Leydig cell tumor
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Noun1.Leydig cell - a cell in the testes that secretes the hormone testosterone
cell - (biology) the basic structural and functional unit of all organisms; they may exist as independent units of life (as in monads) or may form colonies or tissues as in higher plants and animals
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Earlier studies reported that corticocorticoids exert a number of deleterious effects on the interstitial Leydig cells of the testis, including direct inhibition of testosterone biosynthesis, suppression of Lutenlizing hormone receptor expression, and induction of Leydig cell apoptosis (Monder et al.
The movement of testis into the scrotum is under Leydig cell control around week 12, then testosterone from week 25.
It has been shown that oxidative stress can damage the key molecules of steroidogenic pathway, including StAR and cytochrome P450 enzymes in rat leydig cell culture.
Animals treated with atrazine at a dose of 120 mg/Kg bw showing reduction in Leydig cell size, irregular shapes, and degenerative changes were observed [53].
The nuclear volume, the volume of cytoplasm and, consequently, the volume of each Leydig cell were calculated from the data obtained previously.
She is internationally recognized for her pioneering work on Mullerian-inhibiting substance determination in gonadal disorders and for her research on the regulation of Leydig cell development.
Since over 90% of the testosterone is produced in the testis by the Leydig cells, it important to assess for factors that might inhibit Leydig cell production of testosterone.
One juvenile granulosa cell tumor, 5 Leydig cell tumors, and 3 Sertoli-Leydig cell tumors were also tested for the same mutation for comparison.
Leydig cell numbers, daily spermproduction, and serumgonadotropin levels in agingmen.