Sogolo L. Lebelo1,* and Gerhard van der Horst2
...ound associated with the spermatogonia type B, pachytene spermatocytes and Sertoli cells. The results from this study show that there are basic similarities in the Leydig cells of the vervet compared to other mammals, humans and nonhuman primates, however, there also seem to be species differences among the mammalian group. The association of these cells with developing cells, and Sertoli cells was established. However, the association of Leydig cells with spe...
Ümit Kumbıçak, Zübeyde Kumbıçak* and Gülnare Huseynli
...e first time. Results of spermatogonial metaphases showed that the chromosome number and the karyotype formula of the species was 2n♂=35 (X1X2X30) which is the first record for the family Hersiliidae. Both autosomes and sex chromosomes were acrocentric. The lengths of the chromosomes indicated no significant difference between autosomal pairs, however, X3 was the smallest chromosome but X1 and X...

Tingting Li, Shuangshuang Geng, Long Xie, Huiyan Xu, Aolin Luo, Pengwei Zhao, Huan Yang, XingWei Liang, YangQing Lu, XiaoGan Yang* and KeHuan Lu*

...d in the reproduction of spermatogonial stem cells (SSCs). To date, commercialized murine and human GDNF have typically been used for the in vitro culture of SSCs from domestic animals. However, whether endogenous GDNF is superior to xenogenic GDNF in SSC culture in vitro remains unclear. To answer this question, the buffalo GDNF gene was cloned and integrated into the PiggyBac eukaryotic expression vector, which was stably expressed in Sertoli c...

Faiqah Ramzan1,2,*, Irfan Zia Qureshi2 and Muhammad Haris Ramzan3

....05; p<0.001), type A spermatogonia (p<0.05; p<0.01), pachytene spermatocytes (p<0.01; p<0.001) and preleptotene spermatocytes (p<0.05) whereas no significant decrease was observed with a dose of 10ρg. The present findings reveal that during non-pubertal stage; continuous administration of kisspeptin may suppress hypothalamic-pituitary-gonadal axis and spermatogenesis.
...
Huan Yang1, Tingting Li1, Huimin Zhao1,2, Xiaoyuan Zhang1, Huiyan Xu1, Yangqing Lu1, Xingwei Liang1, Shengsheng Lu1, Xiaogan Yang1*and Kehuan Lu1*
Eman A. Al-Shahari1,2, Abdelhalim A. Alkhazendar3, Eman R. ElBealy4 and Abeer A. Alm-Eldeen3*
...usmn; 3.4 µm. Only spermatogonia that were positively reacted with proliferating cell nuclear antigen (PCNA). After quercetin administration, they showed an improvement in the previous biochemical parameters. Seminiferous tubule diameters were 105.2 ± 2.1 µm and their epithelium heights were 26 ± 2.1 µm. Remarkably, spermatogonia, spermatocytes, spermatids and sertoli were positively reacted w...

Pakistan Journal of Zoology

August

Vol. 53, Iss. 4, Pages 1201-1601

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