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AbstractAbstract
[en] The following findings were revealed by this study: 1) Oxidation-reduction (redox) of the intracellular system of glutathione influences the potassium efflux by way of an increase in the 86-rubidium efflux brought about by the oxidation of intracellular thiols. 2) The 86-rubidium efflux is not subject to change by oxidation of extracellular thiols located in the membrane, nor can it in any way be influenced by reduced glutathione of exogenous origin. 3) The potassium efflux from rat pancreatic islets, being generally known to trigger the electric activities of the beta-cell, is controlled by the oxidation-reduction of intracellular thiols rather than by that of extracellular thiols. (TRV)
[de]
Der Autor dieser Arbeit kommt zu folgenden Ergebnissen: 1. Der Redoxzustand des intrazellulaeren Systems von Glutathion in reduzierter und oxidierter Form besitzt einen Einfluss auf den Kaliumefflux, wobei die Oxidation intrazellulaerer Thiole zu einer Steigerung des 86-Rubidiumeffluxes fuehrt. 2. Der 86-Rubidiumefflux wird nicht von der Oxidation extrazellulaerer, membranstaendiger Thiole beeinflusst, ebensowenig von der exogenen Zufuhr reduzierten Glutathions. 3. Das Kaliumefflux der Langerhans'schen Inseln der Ratte - als Ausloesemechanismus fuer die elektrischen Aktivitaeten der β-Zelle - unterliegt der Regulation durch den Redoxzustand intrazellulaerer Thiole, jedoch nicht durch den Redoxzustand extrazellulaerer Thiole. (TRV)Original Title
Untersuchungen zur Beeinflussung des 86Rubidiumeffluxes Langerhansscher Inseln der Ratte durch Thiole und Thioloxidantien
Primary Subject
Source
23 Nov 1983; 213 p; Diss. (Dr.rer.nat.).
Record Type
Miscellaneous
Literature Type
Thesis/Dissertation
Report Number
Country of publication
ALKALI METALS, ANIMALS, BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, BODY, CHEMICAL REACTIONS, DAYS LIVING RADIOISOTOPES, DIGESTIVE SYSTEM, DRUGS, ELECTRON CAPTURE RADIOISOTOPES, ELEMENTS, ENDOCRINE GLANDS, GLANDS, INTERMEDIATE MASS NUCLEI, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, MAMMALS, METALS, MINUTES LIVING RADIOISOTOPES, NUCLEI, ODD-ODD NUCLEI, ORGANIC COMPOUNDS, ORGANIC SULFUR COMPOUNDS, ORGANS, PEPTIDES, POLYPEPTIDES, PROTEINS, RADIOISOTOPES, RADIOPROTECTIVE SUBSTANCES, RESPONSE MODIFYING FACTORS, RODENTS, RUBIDIUM ISOTOPES, VERTEBRATES
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