نتایج جستجو برای: villi
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BACKGROUND During human pregnancy, the placental villi produces high amounts of estradiol. This steroid is secreted by the syncytium, which is directly in contact with maternal blood. Estradiol has to cross placental foetal vessels to reach foetal circulation. The enzyme 17beta-hydroxysteroid dehydrogenase type 2 (17beta-HSD2) was detected in placental endothelial cells of foetal vessels inside...
Derangements of microvascular blood flow distribution might contribute to disturbing O2 extraction by peripheral tissues. We evaluated the dynamic relationships between the mesenteric O2 extraction ratio ([Formula: see text]) and the heterogeneity of microvascular blood flow at the gut and sublingual mucosa during the development and resuscitation of septic shock in a swine model of fecal perit...
The villi of the small intestine are clothed by a constantly renewed population of epithelial cells that are produced in the crypts and extruded at the villi tips (14, 15). During its life of about 1~ days, each epithelial cell undergoes differentiative changes that include a lengthening and narrowing of its microvilli, with the result that the free surface ol apical ceils is very much greater ...
The placenta is the fastest growing organ of the human body. The placenta grows from a single cell to approximately 5x10 cells in 38 weeks. A good blood supply from maternal blood via the spiral arteries to the placenta is not only very important for the foetus but also very important for normal development of the placenta. The maternal blood is supplied to the placenta by spiral arteries. Appr...
Reprint request: Dr. M.L. Kulkarni, Professor of Pediatrics, 2373, MCC A Block, Davangere 577 004. methods of obtaining fetal tissues for karyotype, DISFA studies and enzyme assay(4). The procedure is done at 8-11 weeks of gestation. The transcervical sampling involves insertion of various types of catheters transcervically under ultrasound guidance for aspiration of chorionic villi. Transabdom...
It was demonstrated that partogenetic Strongyloides papillosus females living in the small intestine of sheep infected with L3 S. papillosus larvae caused the necrosis of the mucosa and, in some cases, destruction of the intestinal villi. Furthermore, the enzymatic activity of the epithelial cells of the small intestine was strongly correlated with the morphological picture of the intestine. As...
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