Postnatal change in a Ca(2+)-mediated decrease in (Na+ + K+)-ATPase activity in rat brain slices.
The treatment of brain slices from immature rats with veratrine and monensin did not cause any change in (Na+ + K+)-adenosine triphosphatase (ATPase) activity or [3H]ouabain binding in membranes prepared from the slices, though these reagents remarkably stimulated Ca2+ uptake in the slices. Exposure of the slices from adult rats to a glucose-free, hypoxic or both glucose-free and hypoxic medium resulted in a decrease in the enzyme activity, but the enzyme from immature rats was resistant to the conditions.
Matsuda
T
T
Department of Pharmacology, Faculty of Pharmaceutical Sciences, Osaka University, Japan.
Shimizu
I
I
Baba
A
A
D000818:Animals; D001921:Brain / Q000187:drug effects* / Q000201:enzymology / Q000254:growth & development; D002118:Calcium / Q000502:physiology*; D066298:In Vitro Techniques; D008297:Male; D008985:Monensin / Q000494:pharmacology*; D010042:Ouabain / Q000378:metabolism; D051381:Rats; D011919:Rats, Inbred Strains; D000254:Sodium-Potassium-Exchanging ATPase / Q000187:drug effects* / Q000378:metabolism; D014702:Veratrine / Q000494:pharmacology*
D010042:Ouabain; D008985:Monensin; D000254:Sodium-Potassium-Exchanging ATPase; D014702:Veratrine; D002118:Calcium