Title : L-dopa upregulates the expression and activities of methionine adenosyl transferase and catechol-O-methyltransferase.

Pub. Date : 2001 Sep

PMID : 11520127






7 Functional Relationships(s)
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1 L-dopa upregulates the expression and activities of methionine adenosyl transferase and catechol-O-methyltransferase. Levodopa methionine adenosyltransferase 1A Homo sapiens
2 In this study we investigated whether L-dopa increases the transmethylation process by inducing methionine adenosyl transferase (MAT), the enzyme that produces SAM, and catechol-O-methyl transferase (COMT), the enzyme that transfers the methyl group from SAM to L-dopa and DA. Levodopa methionine adenosyltransferase 1A Homo sapiens
3 In this study we investigated whether L-dopa increases the transmethylation process by inducing methionine adenosyl transferase (MAT), the enzyme that produces SAM, and catechol-O-methyl transferase (COMT), the enzyme that transfers the methyl group from SAM to L-dopa and DA. Levodopa methionine adenosyltransferase 1A Homo sapiens
4 The highlight of the study is the fact that L-dopa induces the enzymes MAT and COMT. Levodopa methionine adenosyltransferase 1A Homo sapiens
5 Thus, during PD treatment with L-dopa the induction of MAT and COMT is likely to occur and in turn increase the methylation and reduction of L-dopa and DA that may help cause the tolerance or the wearing-off effect developed to L-dopa. Levodopa methionine adenosyltransferase 1A Homo sapiens
6 Thus, during PD treatment with L-dopa the induction of MAT and COMT is likely to occur and in turn increase the methylation and reduction of L-dopa and DA that may help cause the tolerance or the wearing-off effect developed to L-dopa. Levodopa methionine adenosyltransferase 1A Homo sapiens
7 Thus, during PD treatment with L-dopa the induction of MAT and COMT is likely to occur and in turn increase the methylation and reduction of L-dopa and DA that may help cause the tolerance or the wearing-off effect developed to L-dopa. Levodopa methionine adenosyltransferase 1A Homo sapiens