Presence of a Blastocyst and Mast Cell Depletion of the Mouse Uterus
作者:
Amitabh Hore,
P.N. Mehrotra,
期刊:
Cells Tissues Organs
(Karger Available online 1988)
卷期:
Volume 132,
issue 1
页码: 6-8
ISSN:1422-6405
年代: 1988
DOI:10.1159/000146543
出版商: S. Karger AG
关键词: Uterine mast cells;Blastocyst;Estrogen
数据来源: Karger
摘要:
The mast cell population has been studied during early decidualization of the mouse uterus. The number increases in early pregnancy until the attachment phase when a sharp depletion is noticed.This fall has been correlated with stimuli of maternal origin, but at the same time the presence of a blastocyst at the presumptive implantation sites seems to exert a significant effect on the depletion of mast cells. A relationship between the number of mast cells in the uterus and the physiological state of the organ has definitely been established [Harvey, 1964; Likar and Likar, 1964; Gibbons and Chang, 1972; Brandon and Evans, 1983]. The number of mast cells in the pregnant uterus is known to decrease around the time of implantation in the rat [Shelesnyak, 1960; De Feo, 1967; Brandon and Bibby, 1979]. Several workers believe that the mast cell population and histamine content decrease as a result of a rise in circulating estrogen [Westin, 1955; Gibbons and Chang, 1972; Spaziani, 1975]. In the present communication the possibility of a relationship between the decrease in mast cell population and the presence of a blastocyst, whose estrogenic role has been reported [Dickmann and Dey, 1973; Dickmann et al., 1975; Sengupta et al. 1977] in the uterine horn has been discussed.
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