INHIBITION, BY ANAESTHETIC AGENTS, OF HUMAN LEUCOCYTE LOCOMOTION TOWARDS CHEMICAL ATTRACTANTS
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The effects of local, i.v. and volatile anaesthetic agents on locomotion of human blood leucocytes were studied in vitro. Blood neutrohpils and monocytes and PHA-activated lymphocytes were allowed to migrate in filters towards standard chemotactic agents and the effect of adding anaesthetic agents to the system was measured. The results showed that locomotion of all cell types was depressed reversibly by all classes of anaesthetics used at clinical concentrations. The pattern of depression varied according to the cell type under study and the class of anaesthetic used. The action of anaesthetics on chemically stimulated locomotion of leucocytes was analysed. It was concluded that the principal action of these drugs is primarily on the mechanism of locomotion itself, rather than on the capacity of the cells to detect and respond to concentration gradients of attractants. Serum albumin can protect against the inhibitory action of anaesthetics.
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