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331.
332.
Resumen En el presente trabajo se estudia el efecto del hipotiroidismo sobre la sintesis de DNA y proliferación celular renal estimuladas por isoproterenol. Se observa que la hormona tiroidea actúa como intermediario de las catecolaminas en el proceso de multiplicación celular. Se sugiere que la hormona tiroidea modula el efecto de catecolaminas aumentando la sensibilidad en el receptor. El aumento de la concentración de cAMP podría estar involucrado en este proceso.
This work was supported by a grant from the Consejo Nacional de Investigaciones Cientificas y Tecnicas, Rep. Argentina. 相似文献
This work was supported by a grant from the Consejo Nacional de Investigaciones Cientificas y Tecnicas, Rep. Argentina. 相似文献
333.
334.
R. Pompei M. A. Marcialis O. Flore A. Pani M. E. Marongiu P. E. Manconi 《Cellular and molecular life sciences : CMLS》1978,34(11):1528-1529
Summary The presence of hydrocortisone in virus-infected cell cultures leads to enhancement of the syncytia forming ability of Newcastle disease virus and to production of vescicular stomatitis virus particles which loose their infectivity upon storage below 0°C.This work was supported by the Italian Consiglio Nazionale delle Ricerche (CNR), Progetto finalizzato Virus, Contract N. 77.00284.84. 相似文献
335.
M. O. Cabada 《Cellular and molecular life sciences : CMLS》1975,31(2):174-175
Resumen La capacidad fecundante de los espermatozoides deBufo arenarum decae más rápidamente en verano que en invierno. Ello probablemente sea debido a la presencia, durante el invierno, de factores testiculares de protección.
This work was supported by a grant from the Consejo Nacional de Investigaciones Cientificas y Técnicas de la República Argentina and by the Population Council grant No. 71.68 awarded to the Consejo Nacional de Investigaciones Cientificas y Técnicas to be administered by the Instituto de Biología, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán.
The author is most grateful to Dr.F. D. Barbieri for his kind discussion and helpful advice in the course of the present study. 相似文献
This work was supported by a grant from the Consejo Nacional de Investigaciones Cientificas y Técnicas de la República Argentina and by the Population Council grant No. 71.68 awarded to the Consejo Nacional de Investigaciones Cientificas y Técnicas to be administered by the Instituto de Biología, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán.
The author is most grateful to Dr.F. D. Barbieri for his kind discussion and helpful advice in the course of the present study. 相似文献
336.
337.
C Trepo L Vitvitski O Hantz J A Grimaud 《Comptes rendus des séances de l'Académie des sciences. Série D, Sciences naturelles》1980,290(4):343-346
Major antigenic identity has been demonstrated by immunodiffusion between the Ag described by Shirachi and confirmed by us (NANB/e) in the serum on non A non B hepatitis and the HBe/3 specificity of hepatitis B virus (HBV). A second Ag (NANB/c) linked to the core of a new virion morphologically similar to HBV and also associated with ADN polymerase activity as recently described, has been identified and purified from an infected liver. This NANB/c Ag also cross reacts with HBc Ag. These results confirm that HBV and the NANB virus defined here belong to the same new class of DNA viruses. 相似文献
338.
339.
R Vendrely W Ghidalia Y Coirault C Montmory M O Brouard O Prou-Wartelle 《Comptes rendus des séances de l'Académie des sciences. Série D, Sciences naturelles》1977,285(10):1069-1072
Electrophoretical and immuno-electrophoretical analysis of plasma, serum and some plasmatic extracts of Macropipus puber (L). have evidenced the presence in the plasma of a component absent in the serum. This component which disappears from the plasmatic extracts after their coagulation must therefore plays a role in the clotting processes. 相似文献
340.
Two homologous protein components of hepatic gap junctions 总被引:6,自引:0,他引:6
Gap junctions consist of closely packed pairs of transmembrane channels, the connexons, through which materials of low relative molecular mass diffuse from the cell to neighbouring cells. In liver, connexons consist of six protein subunits which, until now, were believed to be identical. However, besides the major polypeptide of relative molecular mass (Mr) 28,000 (and see refs 4 and 6), a component of Mr 21,000 (21K) has been repeatedly observed in liver. The amino-terminal sequence (18 residues) of this less abundant protein shows that it is related to, but distinct from, the Mr 28K protein. Immuno-staining and immuno-precipitation show both proteins to be in the same gap junctional plaques. Thus, it seems that hepatic gap junction channels (and by extension possibly others) are composed of two (or more) homologous proteins. 相似文献