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Histological Changes in the Uterus during Postpartum in the Mare
Author(s) -
GomezCuetara C.,
Flores J. M.,
Sanchez J.,
Rodriguez A.,
Sanchez M. A.
Publication year - 1995
Publication title -
anatomia, histologia, embryologia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.34
H-Index - 35
eISSN - 1439-0264
pISSN - 0340-2096
DOI - 10.1111/j.1439-0264.1995.tb00004.x
Subject(s) - karyorrhexis , endometrium , postpartum period , histology , uterus , vacuolization , medicine , epithelium , stromal cell , estrous cycle , pregnancy , andrology , biology , anatomy , pathology , endocrinology , apoptosis , biochemistry , genetics , programmed cell death
Summary An histological study of the postpartum period in 29 mares was carried out. Uterine biopsies were taken daily during the first 10 days postpartum in a total of 87 samples. At day 0, equine endometrium was characterized in the surface by the presence of regularly ordered microcaruncles; the stratum spongiosum was oedematous and contained distended and scarce glands. Degenerative changes in microcaruncles and endometrial glands were present on day 1 postpartum. The epithelium of the microcaruncles from 2 to 5 days postpartum showed cytoplasmic vacuolization, karyorrhexis and an inflammatory reaction with neutrophils and phagocitic cells. On day 7 postpartum, the histology of the endometrium was similar to the normal proestrus with cuboidal luminal epithelium and an oedematous stromal tissue. The changes are usually completed within days 9 and 10 postpartum with the histologically typical appearance of estrus in mares.