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Expression of activin receptors in the equine uteroplacental tissue: an immunohistochemical analysis.


ABSTRACT: Activin is secreted from equine uterine glands and plays important roles in establishment and maintenance of pregnancy in mares. This study aimed to localize activin receptors (ActRs) IA/B and IIA/B using immunohistochemistry in the uteroplacental tissues of seven pregnant Thoroughbred mares. At the time of tissue collection, the mares were at the following days of pregnancy: 88, 120, 161, 269, 290, 313, and 335 days. We fixed the uteroplacental tissues in 4% paraformaldehyde and obtained serial sections that were subsequently stained for analysis. All four isoforms of ActR were expressed in the uteroplacental tissues, including the endometrial epithelium, uterine glands, trophoblasts, and myometrium, throughout pregnancy. Our results suggested the potential role of activin in the uteroplacental tissues.

SUBMITTER: Kimura Y 

PROVIDER: S-EPMC6033615 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature

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Expression of activin receptors in the equine uteroplacental tissue: an immunohistochemical analysis.

Kimura Yuki Y   Sasaki Motoki M   Watanabe Kenichi K   Dhakal Pramod P   Sato Fumio F   Taya Kazuyoshi K   Nambo Yasuo Y  

Journal of equine science 20180706 2


Activin is secreted from equine uterine glands and plays important roles in establishment and maintenance of pregnancy in mares. This study aimed to localize activin receptors (ActRs) IA/B and IIA/B using immunohistochemistry in the uteroplacental tissues of seven pregnant Thoroughbred mares. At the time of tissue collection, the mares were at the following days of pregnancy: 88, 120, 161, 269, 290, 313, and 335 days. We fixed the uteroplacental tissues in 4% paraformaldehyde and obtained serial  ...[more]

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