title: The effect of cimetidine treatment on suppressor T cells in duodenal ulcer patients.
abstract: Changes in the suppressor T-lymphocyte activity were studied in 11 patients with duodenal ulcer during treatment with cimetidine. The drug was administered intravenously in a dose of 200 mg four times a day for a fortnight. Suppressor T-cell activity was determined by the Shou et al. method using two-stage culture before treatment, after 4 days of the treatment, just before drug withdrawal, and 2 days and 2 wk after the treatment. Suppressor T-cell activity significantly decreased soon after starting the treatment, remained low throughout the treatment, and rapidly and significantly increased following drug withdrawal.
mesh_terms: D000328:Adult; D002927:Cimetidine / Q000494:pharmacology / Q000627:therapeutic use*; D004381:Duodenal Ulcer / Q000097:blood / Q000188:drug therapy* / Q000276:immunology; D005260:Female; D006801:Humans; D008213:Lymphocyte Activation; D008297:Male; D008875:Middle Aged; D050378:T-Lymphocytes, Regulatory / Q000187:drug effects* / Q000276:immunology
chemical_list: D002927:Cimetidine