Lamano-Carvalho T L, Favaretto A L, Ferreira A L, Antunes-Rodrigues J
Braz J Med Biol Res. 1984;17(1):83-91.
An histophysiological evaluation was performed of adult rat testes 30 days after vasectomy. A higher frequency of stage VII-VIII of the tubular cycle was observed, indicating sperm accumulation. Seminiferous tubules and tubular lumen having increased diameters were also observed, but these results cannot be explained only in terms of increase in retrograde intratubular pressure. The rise in basal gonadotrophin levels as well as in testosterone levels observed under basal conditions and 30 and 60 min after stimulation with human chorionic gonadotrophin (hCG) suggested hyperactivity of the Leydig cells. The observed increased frequency of Leydig cells with smaller nuclear volumes may be correlated with higher luteinizing hormone levels. The results are discussed in terms of the possible role of neuromotor components resected during vasectomy, which may alter the spermatogenic and the secretory functions of the testis.
对输精管结扎术后30天的成年大鼠睾丸进行了组织生理学评估。观察到睾丸管周期处于VII - VIII期的频率较高，表明精子积累。还观察到生精小管和管腔直径增大，但这些结果不能仅用管内逆行压力增加来解释。在基础条件下以及用人绒毛膜促性腺激素（hCG）刺激后30分钟和60分钟时观察到基础促性腺激素水平以及睾酮水平升高，提示睾丸间质细胞功能亢进。观察到核体积较小的睾丸间质细胞频率增加可能与黄体生成素水平升高有关。根据输精管结扎术中切除的神经运动成分可能改变睾丸生精和分泌功能的可能性对结果进行了讨论。
