共查询到20条相似文献,搜索用时 15 毫秒
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Summary The dibutyryl analog of cCMP enlarged the nuclei of trophoblast gian cells and promoted blastocyst development. The result suggests that cCMP has a trophic effect on embryonic development, specifically by altering the size of the trophoblast cell nucleus but does not enhance trophoblast cell proliferation processes. 相似文献
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The dibutyryl analog of cCMP enlarged the nuclei of trophoblast giant cells and promoted blastocyst development. The result suggests that cCMP has a trophic effect on embryonic development, specifically by altering the size of the trophoblast cell nucleus but does not enhance trophoblast cell proliferation processes. 相似文献
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Summary A glucose concentration of 3.5 mg/ml is optimal for in vitro embryo attachment and trophoblastic cell outgrowth. Raising the concentration above 3.5 mg/ml does not improve embryo culture and can at certain concentrations be detrimental to embryo development. 相似文献
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Summary Short term organ cultures of lung fragments from neonatal mice maintain their normal architecture. Cultures exposed to silica flour in varying concentrations show effects resembling those seen in chronic silicosis produced by inoculation and inhalation methods. 相似文献
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Résumé Le taux d'incorporation de l'acide palmitique marqué à l'hydrogène 3 dans les cellules des bronchioles terminales et des alvéoles du poumon de la souris, suggère que le surfactan pulmonaire est sécrété par les cellules deClara dans les bronchioles terminales. 相似文献
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Early incorporation of labelled palmitate into mouse lung 总被引:1,自引:0,他引:1
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T Ishikawa 《Experientia》1979,35(10):1372-1373
Intravenous transplantation of teratocarcinomas resulted in the formation of colonies only in the lung. The lung colony system would be advantageous for the quantitative studies of differentiation of teratocarcinoma stem cells. 相似文献
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Résumé L'évolution morphologique des cellules trophoblastiques humaines, ainsi que leur potentiel de sécrétion hormonale, in vitro, ont été examinés pendant plus de 2 mois, à l'aide d'une technique simplifiée de culture de placenta. La signification des cellules dites «géantes» l'aspect fibroblastique des trophoblastes dans les cultures agées, et le développement des vrais fibroblastes dans ces cultures, sont discutés.
Acknowledgments: We thank Mr.I. Ofek and MissTechila Kehati for technical assistance. 相似文献
Acknowledgments: We thank Mr.I. Ofek and MissTechila Kehati for technical assistance. 相似文献
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W. Nagl 《Cellular and molecular life sciences : CMLS》1972,28(2):217-218
Zusammenfassung Der DNA-Gehalt und die Chromatinstruktur der hoch endopolyploiden Zellkerne des Rattentrophoblasten wurden untersucht. Cytophotometrische Messungen des Feulgen-DNA-Gehalts weisen auf Polyploidiegrade bis zu 4.096n. Die Riesenkerne von weiblichen Embryonen weien einen grossen heterochromatischen Körper auf, der als Sex-Chromatin, gebildet durch einige Hundert oder Tausend inaktivierteX-Chromosomen, gedeutet wird.
Acknowledgment. I thank Dr.W. Schnedl, Institute of Histology and Embryology, University of Vienna, for kindly supplying us with fixed material and with stained sections. 相似文献
Acknowledgment. I thank Dr.W. Schnedl, Institute of Histology and Embryology, University of Vienna, for kindly supplying us with fixed material and with stained sections. 相似文献
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M. Sideri G. de Virgiliis R. Rainoldi G. Remotti 《Cellular and molecular life sciences : CMLS》1982,38(7):847-848
Summary This paper describes the ruthenium red staining (RRS) pattern observed on the 2 sides, maternal and fetal, of the human early trophoblast. The possibility of a different plasma membrane composition of the 2 sides of the human early trophoblast is discussed. 相似文献
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Résumé La croissance des cellules leucémie murine L-5178-Y-R gène le cycle AMP dans les cultures. Le taux des syntèses décroit d'une manière significative après 4 et 6 h pour le RNA et après 8 h pour la protéine. Le taux de la syntèse de DNA décroit quelque peu entre 1 et 6 h et d'une façon accentuée après 8 h. 相似文献
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Karina Weinhold Udo Krause-Buchholz Gerhard Rödel Michael Kasper Kathrin Barth 《Cellular and molecular life sciences : CMLS》2010,67(15):2631-2642
P2X4 and P2X7 receptors are ATP-gated ion channels that are co-expressed in alveolar epithelial type I cells. Both receptors
are localized to the plasma membrane and partly associated with lipid rafts. Here we report on our study in an alveolar epithelial
cell line of the molecular organization of P2X7R and P2X4R receptors and the effect of their knockdown. Native gel electrophoresis
reveals three P2X7R complexes of ~430, ~580 and ~760 kDa. The latter two correspond exactly in size to signals of Cav-1, the
structural protein of caveolae. Interestingly knockdown of P2rx7 affects protein levels, the intracellular distribution and the supramolecular organization of Cav-1 as well as of P2X4R,
which is mainly detected in a complex of ~430 kDa. Our data suggest upregulation of P2X4R as a compensatory mechanism of P2X7R
depletion. 相似文献