. . . . . . . "[In this review paper, I provide a brief overview of the COMT metabolic system, with particular attentions being paid to the following three areas: (i) the regulation of this catechol-metabolizing system by endogenous regulatory factors (mainly S-adenosyl-L-homocysteine and homocysteine) as well as by exogenous factors such as dietary phytochemicals; (ii) decreased metabolic O-methylation of endogenous catecholamines as an important risk factor for the development of neurodegenerative disorders such as Parkinson's and Alzheimer's diseases in the elderly and also as a risk factor for the development of a variety of cardiovascular diseases; and (iii) the relative importance of the COMT-catalyzed O-methylation metabolism of endogenous catechol estrogens in the causation and prevention of estrogen-induced hormonal cancers.]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine."@en . . . . . "2017-02-19"^^ . . "Gene-disease associations inferred from text-mining the literature."@en . "DisGeNET evidence - LITERATURE"@en . "2017-10-17T13:11:41+02:00"^^ . . . . . . . . . . . "v5.0.0.0" . "v5.0.0" .