The study assessed the biochemical differences between right hemispheric dominant and left hemispheric dominant individuals. The HMG CoA reductase activity, isoprenoid metabolites--serum digoxin--serum magnesium, and RBC membrane Na+-K+ ATPase activity were also studied. The results showed that right hemispheric chemically dominant individuals had increased (i) HMG CoA reductase activity, elevated digoxin levels, (ii) reduced RBC membrane Na+-K+ ATPase activity and serum magnesium levels. Left hemispheric chemically dominant individuals had the opposite patterns. Right hemispheric chemical dominance represents a hyperdigoxinemic/hypomagnesemic state with membrane sodium-potassium ATPase inhibition. Left hemispheric chemical dominance represents the reverse pattern with hypodigoxinemia/hypermagnesemia and membrane sodium-potassium ATPase stimulation. Cerebral chemical dominance can regulate calcium/magnesium metabolism.
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