Abstract:
:The aim of present study was to investigate the role of androgen in sperm storage in the female genital tract of Scotophilus heathi. Spermatozoa were observed in the distal part of oviduct and utero-tubal junction of all the female bats collected between January and early March. Increase in circulating testosterone level coincided with the arrangement of sperm with their head oriented towards the epithelial lining of reproductive tract. Immunocytochemical and Western blot analysis revealed the presence of androgen receptor (AR) only in the distal part of the oviduct and utero-tubal junction, the site of sperm storage. Localization of AR in the cytoplasm of luminal epithelial cells in utero-tubal junction of S. heathi suggests non-genomic action of androgen at the site of sperm storage. Further study showed the presence of intense immunoreactivity of androgen binding protein (ABP) in the glandular epithelial cells of utero-tubal junction. It is hypothesized that androgen creates a unique microenvironment e.g. secretion of ABP within lumen of utero-tubal junction which helps to store spermatozoa for prolonged period in the female genital tract of S. heathi.
journal_name
Gen Comp Endocrinoljournal_title
General and comparative endocrinologyauthors
Roy VK,Krishna Adoi
10.1016/j.ygcen.2009.06.012subject
Has Abstractpub_date
2010-01-01 00:00:00pages
120-6issue
1eissn
0016-6480issn
1095-6840pii
S0016-6480(09)00244-5journal_volume
165pub_type
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journal_title:General and comparative endocrinology
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