SpatiotemporaI distribution of oxytocin receptor in uterine tissues associated with corpus luteum location in cows
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Keywords:
Corpus luteum(CL), Cow, Oxytocin receptors (OT -R), Regressing corpus luteum, UterusAbstract
The bovine uterine horns were characterized for local concentration and distribution of oxytocin receptor (OT·R) with reference to the location of the regressing corpus loteum, lntercaruncle endometrial and myometrial tissues were collected at spatially 3 different parts of the uterine horn (proximal, medial, distal) and I part in the body of the uterus. At follicular and postovulation stages, the distriblution of OT·R levels in endometrial tissues in relation to the regressing CL were not significantly different among locations but the OT·R levels in the uterine body were lower than in the uterine horns. Mean endometrial OT·R of ipsilateral horn to the regressing CL showed significantly higher (P<0.05) levels than contralateral horn at follicular stage. At postovulation, the OT·R levels in myometrium were not significantly different. Endometrial levels of OT·R were significantly higher (P<0.05) than myometrial levels at follicular stage. At postovulation, the OT·R levels in endometrial tissues were significantly lower (P<0.05) than at follicular stage, albeit, the myometrial levels did not differ signiticantly between stages. The results indicate differences in local concentration and distribution of OT-R in endometrial and myometrial tissues. Localized uterine levels of OT·R at follicular postovulation stages are related to the location of the regressing CL.Downloads
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The copyright of the articles published in The Indian Journal of Animal Sciences is vested with the Indian Council of Agricultural Research, which reserves the right to enter into any agreement with any organization in India or abroad, for reprography, photocopying, storage and dissemination of information. The Council has no objection to using the material, provided the information is not being utilized for commercial purposes and wherever the information is being used, proper credit is given to ICAR.
How to Cite
Tsuchiya, S., Cerbito, W. A., Wijayagunawardane, M. P. B., Miyamoto, A., Takagi, M., Miyazawa, K., & Sato, K. (2012). SpatiotemporaI distribution of oxytocin receptor in uterine tissues associated with corpus luteum location in cows. The Indian Journal of Animal Sciences, 68(5). https://epubs.icar.org.in/index.php/IJAnS/article/view/20783