Both proteins were localized in the cytoplasm of the syncytiotrophoblast in the chorionic villi and in endometrial decidual cells at the uteroplacental interface.
12.
Here, first a fertilised egg implants into the uterus, but some cells around the fetus ( the chorionic villi ) do not develop properly.
13.
Blood is carried to the villi by the paired umbilical arteries, which branch into chorionic arteries and enter the chorionic villi as cotyledon arteries.
14.
An undifferentiated cytotrophoblastic stem cell will differentiate into a villous cytotrophoblast, which is what constitutes primary chorionic villi, and will eventually coalesce into villous syncytiotrophoblast.
15.
Immature chorionic villi are larger and have more central blood vessels; thus, the diffusion distance for gas and nutrient exchange is larger and, therefore, placental function is impaired.
16.
Interphase-fluorescence in situ hybridization ( FISH ), quantitative PCR and direct preparation of chromosomes from chorionic villi are all current methods being used that are the most effective for detecting fetal aneuploidy.
17.
Based on morphology, hydatidiform moles can be divided into two types : in " complete moles ", all the chorionic villi are vesicular, and no sign of embryonic or fetal development is present.
18.
Chorionic villi sampling : Done at 10 to 12 weeks'gestation, this procedure involves using ultrasound imaging and withdrawing tissue, either through the vagina with a thin tube or through the belly with a thin needle.
19.
The chorionic villi are at first small and non-vascular, and consist of the trophoblast only, but they increase in size and ramify, whereas the mesoderm, carrying branches of the umbilical vessels, grows into them, and they are vascularized.
20.
A " resolved persistent PUL " is defined as serum hCG reaching a non-pregnant value ( generally less than 5 IU / l ) after expectant management, or after uterine evacuation without evidence of chorionic villi on histopathological examination.
