نتایج جستجو برای: chorioallantoic membrane
تعداد نتایج: 389299 فیلتر نتایج به سال:
Transport and electrical properties of the chick chorioallantoic membrane (CAM) were studied in order to find the osmoregulatory organ which helps to compensate the renal filtration-reabsorption disbalance of chick embryos. It could be shown that CAM resembles Na+ transporting epithelia in that active Na+ absorption is responsible for the potential difference and short circuit current, which co...
An electron microscopical and biochemical study of the chorionic epithelium from 16and 17-day-old chick embryos was conducted. Using a combination of sections made either parallel or perpendicular to the chorionic surface, it was confirmed that the cell populations of the polar and equatorial regions of the membrane are different; the former contains a very reduced number of VC cells which are,...
In the foregoing study (1), infectivity titrations were employed to measure the concentration of influenza virus in portions of chorioallantoic membrane in culture medium containing 2,5-dimethylbenzimidazole. This highly sensitive procedure made possible an examination of the effects of this inhibitory compound (2) on the initial phases of multiplication of the virus; i.e., the first reproducti...
The chorioallantoic membrane (CAM) is one of the most vascularized tissues in the chicken embryo. Capillary growth proceeds until day 10 of development and thereafter abruptly regresses. As it is generally accepted that the formation of new blood vessel is regulated by growth factors, we have investigated the presence of angiogenic and mitogenic factors in the chicken chorioallantois. In the pr...
The human tumor/chick embryo model involving grafting of human HT-1080 fibrosarcoma cells on the chorioallantoic membrane was used in conjunction with quantitative real-time Alu PCR to select in vivo a pair of isogenic cell lines (HT-hi/diss and HT-lo/diss), dramatically differing in their ability to disseminate from the primary tumor (i.e., intravasate into the chorioallantoic membrane vascula...
Fluorescence diagnosis of endometriosis on the chorioallantoic membrane using 5-aminolaevulinic acid
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