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    Exp Neurol. 1997 Jun;145(2 Pt 1):580-5.

    Levels of L-methionine S-adenosyltransferase activity in erythrocytes and concentrations of S-adenosylmethionine and S-adenosylhomocysteine in whole blood of patients with Parkinson's disease.

    Cheng H, Gomes-Trolin C, Aquilonius SM, Steinberg A, Löfberg C, Ekblom J, Oreland L.

    Source

    Department of Medical Pharmacology, Uppsala University, Sweden.

    Abstract

    In the present study, levels of S-adenosylmethionine (SAM) and S-adenosylhomocysteine (SAH) in whole blood as well as L-methionine S-adenosyltransferase (MAT) activity in erythrocytes were assayed in a series of 20 patients with Parkinson's disease and 12 healthy control subjects. A significant difference was found with regard to SAM levels between patients and controls, with the detected levels being 383.1 +/- 41.5 nM for the parkinsonian patients and 680.6 +/- 30.9 nM for the controls. With regard to SAH, we found no difference between the groups. The catalytic activity of MAT was increased by 30% in patients compared to controls, with the Vmax for methionine being 17.9 +/- 3.7 and 13.9 +/- 2.2 pmol/mg/h, respectively.

    PMID:
    9217094
    [PubMed - indexed for MEDLINE]

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