Preliminary findings on calmodulin-stimulated Ca2+-ATPase of erythrocyte ghosts in psychotic patients.

Kinetic properties of the calmodulin-stimulated erythrocyte ghost Ca2+-ATPase seem to be altered in some sub-groups of affective and schizophrenic psychoses. The sub-group of affective disorders concerned mostly unipolar manic and bipolar psychoses with predominantly manic episodes. In the corresponding cases from schizophrenics hyper- and parakinetic basic syndromes were predominantly diagnosed. An evaluation of our preliminary results was undertaken in connection with our biochemical hypothesis on possible alterations in the regulation of Ca2+ concentrations and Ca2+-calmodulin-mediated processes under certain psychotic conditions.