2 components of the high-threshold calcium current possessing different sensitivities to omega-conotoxin in the membrane of pheochromocytoma cells

Blockade of the high-threshold calcium currents by omega-conotoxin (CgTx) was investigated by patch-clamp recordings of whole-cell currents in cultured cells of pheochromocytoma PC12. CgTx (10 mumol/l) preferentially blocked only a steady-state component of the calcium current. Inactivated component was insensitive to CgTx (up to 50 mumol/l concentration). The two component nature of the high-threshold calcium current in pheochromocytoma PC12 cells was suggested.     

Experimental system for high-resolution electroradiography and a method of recording late ventricular potentials

Institute of Radioengineering and Electronics, Academy of Sciences of the USSR. All-Union Cardiologic Scientific Center, Academy of Medical Sciences of the USSR, Moscow. Translated from Meditsinskaya Tekhnika, No. 2, pp. 11–13, March–April, 1990.     

Zu den Voraussetzungen für die Anerkennung von Fortbildungsveranstaltungen durch die Ärztekammern

Zusammenfassung  Die Anerkennung einer Fortbildungsveranstaltung setzt voraus, dass sie dazu dient, die zur ?rztlichen Berufsausübung erforderlichen Fachkenntnisse in der vertrags?rztlichen Versorgung zu erwerben oder auszubauen. Veranstaltungen, die ausschlie?lich als Instrument zur Verbesserung der Wettbewerbsf?higkeit eines niedergelassenen Arztes dienen, sind nicht als Fortbildungsma?nahmen anerkennungsf?hig. (Leitsatz der Bearbeiterin)     

Biologically active substances in hydrazide derivatives of succinic heterylamides

Translated from Khimiko-farmatsevticheskii Zhurnal, Vol. 23, No. 7, pp. 825–828, July, 1989.     

Mechanism of the contraceptive action of the triterpene glycosides from the rock jasmine Androsace septentrionalis L

The sum of triterpene glycosides of Androsace septentrionalis L. (a plant of genus Primula) was shown to change the concentrations of lutropin and follitropin in the hypophysis and plasma and the ratio of these hormones in the blood plasma in the active phase of the cycle. This leads to the change of the ovarian hormonal activity in the direction of predominance of the estrogenic action and an increase of the uterine contractile activity that can be of certain significance in manifestation of the contraceptive effect.     

Die Gebietsbezeichnung “Herzchirurgie” ist eine neue Arztbezeichnung i. S. des § 23 Abs. 4 WBO

Ohne Zusammenfassung