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Hepatology. 1988 Jan-Feb;8(1):65-8.

S-adenosyl-L-methionine synthetase and phospholipid methyltransferase are inhibited in human cirrhosis.

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1
Metabolismo, Nutrición y Hormonas, Fundación, Jiménez Díaz, Madrid, Spain.

Abstract

We have measured the activity S-adenosyl-L-methionine synthetase in liver biopsies from a group of controls (n = 17) and in 26 cirrhotics (12 alcoholic and 14 posthepatic). The activity of this enzyme was markedly reduced in the group of cirrhotics (285 +/- 32 pmoles per min per mg protein) when compared with that observed in controls (505 +/- 37 pmoles per min per mg protein). No differences in S-adenosyl-L-methionine synthetase was observed between both groups of cirrhotics. Similarly, a marked reduction in the activity phospholipid methyltransferase was also observed in liver biopsies from the same group of cirrhotics (105 +/- 12 pmoles per min per mg protein) when compared with the control subjects (241 +/- 13 pmoles per min per mg protein). Again, no difference in the activity of this enzyme was observed between both groups of cirrhotics. These results indicated a marked deficiency in the metabolism of S-adenosyl-L-methionine in cirrhosis.

PMID:
3338721
DOI:
10.1002/hep.1840080113
[Indexed for MEDLINE]

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