Department of Biology, UNESP - Univ Estadual Paulista, São José do Rio Preto, São Paulo 15054-000, Brazil.
Department of Zoology and Botany, UNESP - Univ Estadual Paulista, São José do Rio Preto, São Paulo 15054-000, Brazil.
Gen Comp Endocrinol. 2014 Feb 1;197:33-42. doi: 10.1016/j.ygcen.2013.12.003. Epub 2013 Dec 15.
The male reproductive accessory glands are important organs that secrete products that ensure the survival, viability and motility of spermatozoa, not only in the male reproductive tract, but also in the female. Most studies relating to the reproduction of bats do not include these glands, and detailed studies of these glands describing annual variations in the morphology and physiology are scarce. The aim of this study was to evaluate the impact of these variations on morphophysiology of the prostatic complex (PC) of Artibeus planirostris (Chiroptera: Phyllostomidae). Adult males were collected from June 2009 to July 2010, and the PC was subjected to various analyses. We observed that the PC showed marked variations throughout the year. Both PC and testicular weight increased synchronously with an increasing rate of circulating testosterone, from the autumn until summer, demonstrating that both organs are regulated by this hormone. Each region of the PC (ventral and dorsal) was unique and distinct. The ventral region showed the glandular lumen as a predominant component, in contrast to the dorsal introduced epithelium; acid phosphatase activity was observed in the epithelium of all acini in the dorsal region, but only in the stroma of the ventral region, in addition each region responded differently to variations in the environment and circulating testosterone. We concluded that the PC of A. planirostris produces two secretory peaks, which were related to a gradual increase in the rate of circulating testosterone, which stimulates both of the prostate regions to prepare for the two reproductive periods.
雄性生殖附属腺体是重要的器官，它们分泌的产物不仅保证了精子在雄性生殖道中的生存、活力和运动能力，而且还保证了在雌性生殖道中的生存、活力和运动能力。大多数与蝙蝠生殖有关的研究都不包括这些腺体，而且对这些腺体进行详细研究描述其形态和生理学的年度变化的研究也很少。本研究旨在评估这些变化对 A. planirostris 前列腺复合体（PC）的形态生理学的影响。从 2009 年 6 月到 2010 年 7 月，成年雄性被收集，并对 PC 进行了各种分析。我们观察到，PC 全年都有明显的变化。PC 和睾丸的重量都与循环睾酮的增加率同步增加，从秋季到夏季，这表明这两个器官都受到这种激素的调节。PC 的每个区域（腹侧和背侧）都是独特的和不同的。腹侧区域以腺腔为主要成分，而背侧区域则以引入的上皮为特征；在背侧区域的所有腺泡上皮中都观察到酸性磷酸酶活性，但仅在腹侧区域的基质中观察到，此外，每个区域对环境和循环睾酮的变化都有不同的反应。我们得出结论，A. planirostris 的 PC 产生了两个分泌高峰，这与循环睾酮率的逐渐增加有关，这刺激了前列腺的两个区域为两个生殖期做准备。
