title: Hypothalamic digoxin, cerebral chemical dominance, and calcium/magnesium metabolism.
abstract: 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.
authors.affiliation: Department of Neurology, Medical College Hospital, Trivandrum, Kerala, India.
authors.forename: Ravi Kumar
authors.initials: RK
authors.lastname: Kurup
authors.forename: Parameswara Achutha
authors.initials: PA
authors.lastname: Kurup
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D001923:Brain Chemistry / Q000502:physiology; D002118:Calcium / Q000378:metabolism; D004077:Digoxin / Q000097:blood*; D004286:Dolichols / Q000097:blood; D004292:Dominance, Cerebral / Q000502:physiology*; D004791:Enzyme Inhibitors / Q000097:blood; D004910:Erythrocyte Membrane / Q000378:metabolism*; D006023:Glycoproteins / Q000097:blood; D006025:Glycosaminoglycans / Q000097:blood; D006801:Humans; D006903:Hydroxymethylglutaryl CoA Reductases / Q000097:blood; D007031:Hypothalamus / Q000378:metabolism*; D008274:Magnesium / Q000378:metabolism*; D018377:Neurotransmitter Agents / Q000378:metabolism; D011106:Polyisoprenyl Phosphates / Q000378:metabolism; D012016:Reference Values; D000254:Sodium-Potassium-Exchanging ATPase / Q000378:metabolism*; D014451:Ubiquinone / Q000097:blood
chemical_list: D004286:Dolichols; D004791:Enzyme Inhibitors; D006023:Glycoproteins; D006025:Glycosaminoglycans; D018377:Neurotransmitter Agents; D011106:Polyisoprenyl Phosphates; D014451:Ubiquinone; D004077:Digoxin; D006903:Hydroxymethylglutaryl CoA Reductases; D000254:Sodium-Potassium-Exchanging ATPase; D008274:Magnesium; D002118:Calcium