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Article
Über das Verhalten des Froschherzens während der Monojodessigsäurevergiftung
Das am isolierten Froschherzen, durch Monojodessigsäure bedingte Vergiftungsbild konnte schon früher zwanglos in 4 Stadien eingeteilt werden. Das 3. Stadium, das für diese Vergiftung charakteristisch ist, wird...
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Article
Referate
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Article
Zwei Nomogramme für die Atemgasgrößen und den Säure-Basenstatus des fetalen und des mütterlichen Blutes
Es werden zwei Leiternomogramme für die Atemgaswerte und den Säure-Basenstatus des fetalen und des mütterlichen Blutes am Ende der Schwangerschaft angegeben. Die Nomogramme stellen die wechselseitige Abhängigk...
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Article
Die O2-Transportfunktion des mütterlichen und fetalen Blutes zum Zeitpunkt der Geburt
Die für den Sauerstofftransport im mütterlichen und fetalen Blut charakteristischen Größen werden gleichzeitig für den Zeitpunkt der Geburt bestimmt. Als Mittelwerte von 41 vollständigen Meßwertgruppen ergeben...
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Article
Der Gasaustausch in der menschlichen Placenta unter Berücksichtigung der wechselseitigen Abhängigkeit von O2- und CO2-Transport
Es wird der Gasaustausch in der menschlichen Placenta unter Berücksichtigung der Tatsache untersucht, daß der CO2-Transport über den Bohr-Effekt den O2-Austausch bzw. der O2-Transport über den Haldane-Effekt den ...
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Article
Der Säure-Basenstatus und die CO2-Transportfunktion des mütterlichen und fetalen Blutes zum Zeitpunkt der Geburt
Als Voraussetzung für die Analyse des Gasaustausches in der menschlichen Placenta werden die charakteristischen Daten für den CO2-Transport und den Säure-Basenstatus im mütterlichen und fetalen Blut zum Zeitpunkt...
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Article
Die Verteilungsanalyse von Ventilation, Perfusion und O2-Diffusionskapazität in der Lunge durch Konzentrationswechsel dreier Inspirationsgase
The theoretical basis is given for an examination method, which, at the same time, enables the inhomogeneities of the ventilation-perfusion ratio, ...
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Article
Die Verteilungsanalyse von Ventilation, Perfusion und O2-Diffusionskapazität in der Lunge durch Konzentrationswechsel dreier Inspirationsgase
The examination and the evaluation procedure of the method of simultaneous distribution analysis of ventilation, lung perfusion, and O2 diffusing capacity are described. The test person breathes, in an open spiro...
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Article
Die Verteilungsanalyse von Ventilation, Perfusion und O2-Diffusionskapazität in der Lunge durch Konzentrationswechsel dreier Inspirationsgase
14 adolescents with healthy lungs, 6 elderly people with chronic emphysema bronchitis, and 10 pregnant women with healthy lungs, were examined by the method of distribution analysis of ventilation, ...
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Article
Modelluntersuchungen zum Austausch der Atemgase
The time course of the Bohr effect on thin blood lamellas, consisting of a single layer of erythrocytes with a plasma layer on both sides, is examined. The O2 saturation change of the hemoglobin, following a sudd...
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Article
Modelluntersuchungen zum Austausch der Atemgase
The time constant and transient function for the O2 uptake of the blood, under conditions similar to those in the lung capillary, are examined by means of experiments on models. In the process, blood lamellas, co...
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Article
Zum Problem der Frühentwicklung der Wirbelsäule
A stillborn child with Achondrogenesis showed an arrest of the development of its vertebral column. The vertebral column “anlage” consisted of a primitive mesenchymal tissue instead of normal cartilage, and th...
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Article
Metabolic control of respiratory neuronal activity and the accompanying changes in breathing movements of the rabbit
Phase shifts between inspiratory-related and expiratory-related discharge patterns can be reversibly induced in respiratory neurons following volume changes of the lung, hypocapnic apnea as a result of hyperve...
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Article
Hydrostatic pressures within the vascular structures of the rat kidney
The pressure conditions at the distal end of the interlobular arteries and in the interlobular veins were investigated from the pressures obtained in superficial small arteries and veins, accidentally found on...
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Article
Metabolic control of respiratory neuronal activity and the accompanying changes in breathing movements of the rabbit
The property of the neuronal membrane to be permeable to metabolic modifiers of two regulatory enzymes has been utilized to manipulate the spike activity of inspiratory (I) and expiratory-inspiratory (EI) neur...
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Article
Influence of low extracellular pH upon the Ca inward current and isometric contractile force in mammalian ventricular myocardium
In isolated papillary muscles of cats the changes in Ca inward current and isometric contractile force following a decrease of extracellular pH from 7.4 to 5.5 were studied. The Ca current was analyzed (a) by ...
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Article
Calcium ion uptake induced by cholinergic and α-adrenergic stimulation in isolated cells of rat salivary glands
Adrenaline (10−5 M) and carbamylcholine (10−4 M) stimulate45Ca2+ uptake into isolated cells of rat submandibular gland and parotid glands. In the presence of the α-adrenoreceptor blocking agent phentolamine, adre...
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Article
Specific proteolysis of a brain membrane phosphoprotein (B-50): Effects of calcium and calmodulin
The membrane bound phosphoprotein B-50 (MW 48K) was isolated from rat brain tissue. The fraction containing the highest endogenous B-50 phosphorylating activity (ASP 57–82%) contains protease activity. In the ...
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Article
Fast bicarbonate-chloride exchange between plasma and brain extracellular fluid at maintained \(P_{CO_2 } \)
The aim of this paper was to investigate the kinetics and mechanism of bicarbonate exchange at the blood-brain ECF barrier. The experiments were performed on anaesthetized and artificially ventilated cats in s...
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Article
Transient and steady state responses of pulmonary ventilation to the medullary extracellular pH after approximately rectangular changes in alveolar \(P_{CO_2 } \)
The extracellular pH (pHe) either on the ventral surface of the medulla oblongata or the parietal cortex, the tidal volume, the expiratory ...