title: Histological changes in the endometrial arterioles during postpartum offthe Chinese hamster (Cricetulus griceus).
abstract: The morphology of the uterine wall in the postpartum Chinese hamster (Cricetulus griceus) was studied with particular reference to the changes in the arterioles in the mesometrial endometrium. At day 0 postpartum, the endometrial arterioles were characterized by the appearance of trophoblastic giant cells plugging ruptured arterioles. On days 1 to 3 postpartum, the giant cells were replaced by epitheloid cells. On days 4 to 5 postpartum, the epitheloid cell mass was invaded by fibroblasts to occlude the arterial lumens. On days 6 to 7 postpartum, endometrial regeneration was completed. The giant cell might play a role in hemostasis immediately after parturition.
authors.affiliation: Department of Laboratory Animal Science and Research Institute of Biosciences, Azabu University, Kanagawa, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Ninomiya
authors.forename: T
authors.initials: T
authors.lastname: Inomata
mesh_terms: D000818:Animals; D001160:Arterioles / Q000166:cytology* / Q000502:physiology* / Q000648:ultrastructure; D002467:Cell Nucleus / Q000648:ultrastructure; D006224:Cricetinae; D003412:Cricetulus; D004717:Endometrium / Q000098:blood supply* / Q000502:physiology; D004721:Endoplasmic Reticulum / Q000648:ultrastructure; D005260:Female; D008214:Lymphocytes / Q000166:cytology / Q000502:physiology; D009504:Neutrophils / Q000166:cytology / Q000502:physiology; D049590:Postpartum Period / Q000502:physiology*; D013997:Time Factors