Distribution patterns of uterine glands and embryo spacing in the mouse |
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| Authors: | Hondo E Phichitrasilp T Kokubu K Kusakabe K Nakamuta N Oniki H Kiso Y |
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| Institution: | Department of Basic Veterinary Science, The United Graduate School of Veterinary Science and Department of Vetinary Anatomy, Faculty of Agriculture, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan. ehondo@yamaguchi-u.ac.jp |
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| Abstract: | To clarify the mechanism of implantation, relationship between positioning of the mouse embryo in the uterus and distribution of uterine glands along the long axis of the uterine horn was examined by three-dimensional remodelling of the uterine endometrium. There were two unique regions in the endometrium. Uterine glands were distributed widely from mesometrial to anti-mesometrial side in one region. It was localized from lateral to anti-mesometrial side in another. These different regions were alternately aligned throughout the uterine horn. The number and position of embryos was consistent with that of the latter region. This study suggests that the type of distribution of uterine glands is closely related to the positioning of the embryo in mice. |
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