Control group Table 3: The number of different testis cell types (x[10.sup.6]) Groups Spermatogonia A Spermatogonia B Sertoli cell Control 0.83[+ or -]0.06 0.16[+ or -]0.07 2.7[+ or -]0.2 BD1/2 0.83[+ or -]0.05 0.13[+ or -]0.05 2.5[+ or -]0.1 BD1/4 0.84[+ or -]0.05 0.18[+ or -]0.05 2.7[+ or -]0.3 Groups Primary Round Long spermatocyte
spermatid spermatid Control 12.1[+ or -]0.98 31.8[+ or -]2.49 30.9[+ or -]3.02 BD1/2 12.0[+ or -]0.80 31.0[+ or -]2.18 30.6[+ or -]2.66 BD1/4 12.4[+ or -]0.92 32.2[+ or -]2.20 32.1[+ or -]2.65 Groups Leydig cell Control 2.2[+ or -]0.02 BD1/2 2.5[+ or -]0.15 (**) BD1/4 2.1[+ or -]0.03 The values (n=5) are presented as mean[+ or -]SD.
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.
Prolonged dosing resulted in continued spermatocyte
degeneration as well as maturation depletion of the spermatid population, leaving tubules containing only sustentacular cells, spermatogonia and preleptotene spermatocytes
Presence of spermatocytes
was observed in males, as well as spermatozoids in the spermatic lobes and spermatic sacs (Fig.
This significant decline can be explained with either of the following reasons: L-cys as a nucleophile (10) might prevent AA, which is an electrophile, from damaging primary spermatocytes
with a specific elimination reaction (25,26), or L-cys, as a precursor of glutathione, might increase the antioxidant capacity of the body.
Score 5 of Johnsen categories is characterized by primary spermatocytes
that will enter meiosis.
Type A spermatogonia at the basal lamina of seminiferous tubules, as well as primary spermatocytes
in the leptotene and pachytene stages of prophase I, were also observed in the seminiferous epithelium.
Concerning dogs, LepR is absent from Leydig cells and Sertoli cells but present in spermatocytes
and spermatids .
A) Primary spermatocytes
(40X); B) Secondary spermatocytes
(40X); C) Spermatids (40X); D) Spermatozoa (40X); E) Spermatozeugmata (20X).
By analyzing of the distribution of the pattern of constitutive heterochromatin in spermatocytes
in prophase I has been possible to differentiate all species of Maculata subcomplex: T.
* No spermatozoa or spermatids but many spermatocytes
Spermatogonia decreased and numerous primary and secondary spermatocytes