Fluctuation of aquaporin 1, 5, and 9 expression in the XXXX oviduct during the estrous cycle and early pregnancy.

@entity1 @entity1707 @entity73025 @entity73026 @entity73024
Thirteen @entity1 aquaporin (AQPs) isoforms with a unique tissue-specific pattern of expression have been identified. To date, 11 isoforms of AQP have been reported to be expressed in female and male reproductive systems. The purpose of our study was to determine the localization and quantitative changes in the expression of @entity73024 , 5 and 9 within the @entity1707 oviduct during different stages of the estrous cycle and early pregnancy. The results demonstrated that @entity73024 , 5, and 9 were clearly detected in all studied stages of the estrous cycle and pregnancy. @entity73024 was localized within oviductal blood vessels. In cyclic gilts, the expression of @entity73024 protein did not change significantly between days 10-12 and 14-16 but increased on days 2-4 and 18-20. @entity73025 was localized in smooth muscle cells and oviductal epithelial cells. The expression of @entity73025 protein did not change significantly between days 10-12 and 14-16 of the estrous cycle but increased on days 2-4 and 18-20. The anti- @entity73026 antibody labeled epithelial cells of the oviduct. The expression of @entity73026 did not change significantly between days 10-12 and 14-16 of the estrous cycle but increased on days 2-4 and 18-20. In pregnant gilts, expression of @entity73024 , 5, and 9 did not change significantly in comparison with the estrous cycle. Therefore, a functional and distinctive collaboration seems to exist among diverse AQPs in water handling during the different oviductal phases in the estrous cycle and early pregnancy.
