cytotrophoblast


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cytotrophoblast

[¦sīd·ō′trō·fə‚blast]
(embryology)
The inner, cellular layer of a trophoblast, covering the chorion and the chorionic villi during the first half of pregnancy.
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This is thought to be a potent stimulus for the activation of Xanthine Oxidase, which is an important source for generation of superoxide free radicals and this takes place in abundance in cytotrophoblast, syncytiotrophoblast and villous stromal cells.
A and B, Hydropic nonmolar abortions show nuclear p57 staining in villous cytotrophoblast and stromal cells.
33 Anti-CagA antibodies are able to recognise b-actin of cytotrophoblast cells and affect their invasiveness.
2011) and has a dose-dependent effect upon apoptosis of primary human cytotrophoblast cells via tumor necrosis factor a (Benachour and Aris 2009).
In addition, it has recently been proved that anti-CagA antibodies have a cross reaction with respect to in vitro cytotrophoblast cells and they reduce their invasiveness ability [23].
Defective invasion of the spiral arteries by cytotrophoblast cells is observed during preeclampsia.
Cases of mosaicism, in which the chromosomal constitution of the cytotrophoblast is different from that of the fetus, are potential sources of FP and FN results.
Isolation of extravillous tissue was adapted from described procedure for amniochorionic cytotrophoblast isolation [23, 24].
26) The placenta is a major endocrine organ during gestation, and in the case of mice, a variety of placental cells, such as giant trophoblast, spongiotrophoblast and cytotrophoblast cells, produce progesterone (P4) and placental lactogen I/II (PL1 and 2) as well as several prolactin-like proteins in order to maintain pregnancy and determine the timing of parturition.
Nitabuch's fibrinoid layer is presented as a narrow band with unevenly distributed preserved cytotrophoblast cells.
Control of the human inhibin a chain promoter in cytotrophoblast cells differentiating into syncytium.
In contrast, P57KIP2 expression in villous cytotrophoblast, villous stromal cells and ex-travillous trophoblast was absent or markedly decre-ased in 17 (34%) complete hydatidiform mole (Fig.