Abstract
1 The specific [3H]-ouabain binding to microsomal fractions derived from cat heart, liver, spleen, and kidney increased significantly following chronic administration of ethanol. 2 Since ouabain binds exclusively to cell membrane (Na+ + K+)-adenosine triphosphatase ((Na+ + K+)-ATPase), these results provide evidence for an increase in number of (Na+ + K+)-ATPase macromolecules during chronic alcoholism. 3 The importance of the increase in number of (Na+ + K+)-ATPase molecules in the adaptive increase in ethanol metabolism and cardiac myopathy in chronic alcoholism is discussed.
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Selected References
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