Leydig cell

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Leydig cell

[′lī·dig ‚sel]
(histology)
One of the interstitial cells of the testes; thought to produce androgen.
References in periodicals archive ?
The Leydig cells volumetric density (%) was measured using a reticule with 441 points (coupled in microscope) at 1000x magnification.
Origin, proliferation and differentiation of Leydig cells.
Morphological analysis of Testicular tissue: We also studied the morphology of the cross sectional structure of testicles of normal follicles with intact germinal layer and leydig cell and the results showed complete destruction of leydig cells partially damaged germinal layer and destruction of sperms leading to empty spaces in the lumen of follicle of testicles in which 30% destruction of follicle was observed in the group at 30 day after the administration of K2Cr2O7 and 35% destruction of follicle was observed in the group at 30th day after administration the MgSO4 (Fig.
Leydig cells found in the interstitial region and venous structures were also found normal (Figure 4c, d).
Oxygen-mediated damage of microsomal cytochrome P-450 enzymes in cultured leydig cells.
Normal control rats (Figure 5(a)--group I) reveal normal spermatogonia, Sertoli cells, and Leydig cells with accumulation of spermatozoa within the seminiferous tubules.
The percentage of each element in the intertubular compartment was obtained by counting 1,000 points for each animal, registering points on Leydig cells, blood and lymphatic vessels, and connective tissue.
In tubular compartment were measured the tunica propria, the seminiferous epithelium and the lumen; while in the intertubular compartment were analyzed Leydig cells, blood and lymph vessels, mast cells and other components such as cells and fibers of connective tissue.
This action could have been either directly by its action on Leydig cells of the testis or indirectly through the pituitary gland.
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.
Baixos niveis dos hormonios tireoidianos podem interferir na proliferacao das celulas de Sertoli e Leydig (6, 7), alem de exercer acao direta no epididimo (8) e na prostata comprometendo o desempenho reprodutivo de varias especies (9).
Nine additional cases of testicular, sex cord-stromal tumors were evaluated for comparison, including 1 juvenile granulosa cell tumor, 5 Leydig cell tumors, and 3 Sertoli-Leydig cell tumors.