Influence of hormones on the nicotinamide nucleotide coenzymes of adipose tissue |
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| Authors: | McLean P Greenbaum A L Brown J Greenslade K R |
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| Affiliation: | Courtauld Institute of Biochemistry, The Middlesex Hospital Medical School, London, W. 1, Department of Biochemistry, University College London, Gower Street, London, W. 1, and Department of Medicine, University of California, Los Angeles, Calif. 90024, U.S.A. |
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| Abstract: | The concentrations of the oxidized and reduced forms of the nicotinamide nucleotides were measured in the epididymal fat pads of normal, alloxan-diabetic and hypophysectomized rats. In both alloxan-diabetic rats and hypophysectomized rats the weight of the adipose tissue fell, as did the total content of NADH and NADPH; in addition, NAD+ was decreased in the alloxan-diabetic group. Of these changes the most marked was in NADPH and this was the only significant difference when the results were expressed as nicotinamide nucleotides/mg. of tissue protein. The concentration of NADPH in the hypophysectomized rats was not altered by treatment with growth hormone but was restored to normal by treatment with thyroxine. These results are discussed in relation to the known effect of these hormonal conditions on lipid synthesis in adipose tissue. |
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