title: Sister chromatid exchange in patients treated with methotrexate for psoriasis.
abstract: Sister chromatid exchange (SCE), which is considered a sensitive method in evaluation of mutagenicity and may be an indicator of carcinogenicity, was determined in lymphocytes from 8 patients with severe psoriasis who underwent treatment with oral methotrexate (MTX). During the treatment period (median 118 days, range 50-298 days) a significant increase in SCE compared to the pretreatment value was found in 1 patient only. It is concluded that no long-term damage as measured by SCE occurs in lymphocytes from psoriasis patients treated with MTX.
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008214:Lymphocytes / Q000187:drug effects / Q000648:ultrastructure; D008297:Male; D008727:Methotrexate / Q000009:adverse effects*; D008875:Middle Aged; D011565:Psoriasis / Q000097:blood* / Q000188:drug therapy; D012854:Sister Chromatid Exchange / Q000187:drug effects*; D013997:Time Factors
chemical_list: D008727:Methotrexate