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  • Title: Hepatic metabolic function in patients receiving long-term methotrexate therapy: comparison with topically treated psoriatics, patient controls and cirrhotics.
    Author: Birnie GG, Fitzsimons CP, Czarnecki D, Cooke A, Scobie G, Brodie MJ.
    Journal: Hepatogastroenterology; 1985 Aug; 32(4):163-7. PubMed ID: 2865199.
    Abstract:
    Standard biochemical liver function tests and the clearances of antipyrine and indocyanine green have been compared in psoriatic patients taking methotrexate, psoriatic patients on topical treatment, patient controls and patients with hepatic cirrhosis. The methotrexate-treated patients showed significant elevations in alkaline phosphatase (p less than 0.025) and gamma glutamyl transpeptidase activities (p less than 0.05) compared to topically treated psoriatics and patient controls. The clearance of antipyrine was reduced in the methotrexate treated group but not significantly (p less than 0.1 greater than 0.05). In contradistinction, the weight-adjusted clearance of indocyanine green was significantly impaired in the methotrexate group in comparison with the topically treated psoriatics (p less than 0.01). The clearance of both antipyrine and indocyanine green were markedly lowered in the cirrhotics (p less than 0.001 against all other groups). These data suggest that the serial measurement of alkaline phosphatase and indocyanine green clearance may provide a non-invasive indicator of the development and progression of methotrexate-related liver injury.
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