Score 5 of Johnsen categories is characterized by
primary spermatocytes that will enter meiosis.
Groups Control Parameters Spermatogonia 41.20 [+ or -] 2.95 Sustentacular 15 [+ or -] 1.41
Primary Spermatocyte 45.60 [+ or -] 4.39 Spermatid 135.60 [+ or -] 12.97 Spermatozoa 119.20 [+ or -] 12.81 Groups Diabetic control Parameters Spermatogonia 35.00 [+ or -] 6.48 Sustentacular 15.71 [+ or -] 2.75
Primary Spermatocyte 41.29 [+ or -] 5.88 Spermatid 106.29 [+ or -] 17.17 (a) * Spermatozoa 80.86 [+ or -] 18.81 (a) * Groups A.
(6) Reversible arrest at the
primary spermatocyte level can be due to heat, infections, or hormonal and nutritional factors, while irreversible arrest at the
primary spermatocyte or spermatid level is most often related to chromosomes anomalies either in somatic cells or in germ cells with subsequent impairment of meiosis.
Primary spermatocytes form numerous and compact cysts (Fig.
They are spermatogonium, 5 stages of
primary spermatocyte, secondary spermatocyte, 2 stages of spermatid and spermatozoa (Fig.
The condition of the gametes in a ripe triploid male is largely immature, with mostly
primary spermatocytes, variable but minority proportions of secondary spermatocytes/spermatids, and rare populations of spermatozoa.
First, 4N
primary spermatocytes fail to undergo complete meiosis and therefore cannot produce haploid sperm cells.
Leptotene-stage
primary spermatocytes were located in the area adjacent to the basal lamina.
A)
Primary spermatocytes (40X); B) Secondary spermatocytes (40X); C) Spermatids (40X); D) Spermatozoa (40X); E) Spermatozeugmata (20X).
In the proximal area, the epithelium is discontinuous and thin (18.96 [+ or -] 0.987 [micro]m), consisting of scarce
primary spermatocytes and spermatogonia.