The relationship between testicular activity, accessory sex glands, and circulating steroid concentration during the reproductive cycle in a male Indian vespertilionid bat, Scotophilus heathi
The relationship between testicular activity, accessory sex glands, and circulating steroid concentration during the reproductive cycle in a male Indian vespertilionid bat, Scotophilus heathi
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雄性印度 vespertilionid 蝙蝠 (Scotophilus heathi) 生殖周期中睾丸活动、副性腺和循环类固醇浓度之间的关系
DOI：
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发表时间：
1997
期刊：
影响因子：
--
通讯作者：
Kavita . Singh
中科院分区：
文献类型：
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作者：
A. Krishna;Kavita . Singh
本文研究了雄性大黄蝙蝠精子发生、副性腺、间质细胞活性与雄性睾酮和雄烯二酮循环浓度之间的关系。在印度的瓦拉纳西，在冬季休眠之前，黑斑Scotophilus heathi积累脂肪。精子的发生是季节性的，从11月到3月，睾丸在冬季变得静止。睾丸和副性腺肿块的月变化在11月和1月出现两个高峰。副腺分泌活性和果糖浓度仅在1月和2月出现一个高峰，与交配期一致。附睾肿块及其组织学变化反映了睾丸精子发生的影响。然而，在精子发生静止期，精子在附睾尾部被发现。8 - 12月间质细胞侧链裂解酶活性明显增强。1月下旬和2月，雄性间质细胞较小，SCC活性较低。血清睾酮浓度的月变化包括11月和1月的两个高峰，与生精活动的高峰一致，而雄烯二酮只有一个高峰，在11月的浓度异常高。循环血清雄烯二酮浓度可能是这种蝙蝠独特的生殖活动的原因。
The relationship between spermatogenesis, accessory sex glands, Leydig cell activity, and circulating concentrations of testosterone and androstenedione in male Scotophilus heathi, the greater yellow bat, was studied. Scotophilus heathi accumulated fat prior to winter dormancy at Varanasi, India. Spermatogenesis was seasonal and extended over the period November to March, with the testes becoming quiescent during winter. Monthly changes in testis and accessory sex gland masses showed two peaks, in November and January. Accessory gland secretory activity and fructose concentrition showed only one peak, during January and February, which coincided with the mating period. The mass in the epididymides and their histological changes reflect the influence of testicular spermatogenesis. However, sperm were found in the cauda epididymidis during the spermatogenically quiescent period of winter dormancy. The Leydig cells showed intense side chain cleavage (SCC) enzyme activity from August to December. In late January and February, males had smaller Leydig cells and low SCC activity. Monthly changes in serum testosterone concentration included two peaks in November and January, coinciding with peak spermatogenic activity, whereas androstenedione showed only one peak, an unusually high concentration in November. The circulating serum androstenedione concentration may be responsible for the unique reproductive activity noted in this bat.
DOI：
10.1002/aja.1001780403
发表时间：
1987-04
期刊：
The American journal of anatomy
影响因子：
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作者：
A. W. Gustafson
通讯作者：
A. W. Gustafson
对过度喂养的荷尔蒙反应。
DOI：
10.1093/ajcn/49.4.608
发表时间：
1989
期刊：
The American journal of clinical nutrition
影响因子：
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作者：
Forbes,GB;Brown,MR;Welle,SL;Underwood,LE
通讯作者：
Underwood,LE