ABSTRACT
The influence of indometacine (7 x 10(-8)M) on the tonic contractile activity of the isolated rat portal vein (PV) under the action of adrenaline (1 x 10(-5)M) and noradrenaline (5 x 10(-6)M) was studied. Indometacine decreased the amplitude of noradrenaline-induced tonic constriction of PV with intact endothelium and produced no effect on constriction of vessels with denuded endothelial layer. The results suggest that these reactions are mediated by endothelial prostanoids. Inhibition of adrenaline-induced constriction of PV preparations with intact and denuded endothelium suggests that the contractile reactions are mediated by prostanoides derived from both endothelial and smooth muscle cells.
Subject(s)
Eicosanoids/metabolism , Epinephrine/pharmacology , Indomethacin/pharmacology , Muscle Contraction/drug effects , Muscle, Smooth, Vascular/drug effects , Norepinephrine/pharmacology , Portal Vein/drug effects , Animals , Endothelium, Vascular/drug effects , Endothelium, Vascular/metabolism , Endothelium, Vascular/physiology , Muscle, Smooth, Vascular/metabolism , Muscle, Smooth, Vascular/physiology , Organ Culture Techniques , Portal Vein/metabolism , Portal Vein/physiology , RatsABSTRACT
Three typological groups (clusters) of human were picked out by complex of psycho-somato-visceral indexes. The most informaton and suitable for estimation indexes for dividing population of human into typological groups were established. Each group of persons is characterised by combination of properties that differ statistically from other groups. Some of this properties are genetic dependent.
Subject(s)
Psychophysiology , Somatotypes , Viscera/physiology , Adolescent , Adult , Anthropometry/methods , Cardiovascular Physiological Phenomena , Female , Humans , MaleABSTRACT
The equipment for observation and recording of human cardiointervals which is based on arterial pulse wave registration is proposed.
Subject(s)
Blood Pressure Determination/instrumentation , Cardiology/methods , Electronics, Medical , Equipment Design , HumansABSTRACT
The relationships between functional mobility of nervous processes (FMNP), brain efficiency, index of successive work, nervous system strength of human and his some anthropometric indexes: mass, height, index mass body and proper basal metabolism were investigated. We showed that men in comparison with women have reliable higher levels of FMNP and also reliable higher levels of mass, height, proper basal metabolism and both in the whole group and in the subgroups with different level of FMNP. It was shown that mass of women is nonlinearly depended on functional mobility of nervous processes. Besides, such psychophysiologycal properties as brain efficiency and index of successive work correlated with mass, index mass body and proper basal metabolism.
Subject(s)
Anthropometry/methods , Psychophysiology/methods , Female , Humans , Male , Statistics as TopicABSTRACT
Examination of 163 schoolboys in higher forms has revealed that strength of the nervous system and functional state of the CNS (functional level of the system, level of functional possibilities, arousal and reaction stability) do not differ in schoolchildren with various progress in learning. The school teaching efficiency correlated with parameters of strength of the nervous system only in excellent and good pupils, the functional state of the nervous system being of importance for their teaching, especially its such parameters as arousal, level of functional possibilities and reaction stability. In pupils with poor progress those correlations were absent.
