[The microcirculation and the succinate and NADH dehydrogenase activities of the brain in neurotic disorders of the higher nervous activity in white rats].

A correlation was made between microcirculation and energy metabolism in the brain of 50 neurotized rats. Neurotic disorders were defined by characteristics of conditioning, arterial pressure, breathing rate and heart rate. In vivo biomicroscopy revealed modification of the state of blood vessels at rest and inverted reaction of brain pial vessels of neurotized rats to bilateral occlusion of common carotid arteries. Ratio of activities of respiratory cycle enzymes (succinate and NADH-dehydrogenases) was indicative of hypoxic state of the animals under study.