Abstract
The activities of both total and Oligomycin-sensitive ATPase in lymphocytes from patients with gastrointestinal tract (GI) carcinomas in different Karnofsky performance status (KPS) were determined to investigate whether or not the changes of these enzyme activities were correlated to those of the immune responsiveness of the patients. In the patients whose KPS indicated more than 50%, the mean value of the total ATPase activity in lymphocytes tended to increase slightly as compared with that determined in the control subjects, but the mean value of the Oligomycin-sensitive ATPase activity in lymphocytes tended to decrease slightly as compared with that determined in the control subjects. In the patients whose KPS indicated less than 30%, the mean values of the activities of both total and Oligomycin-sensitive ATPase in lymphocytes tended to decrease remarkably as compared with those determined in the control subjects. The ATPase activities in lymphocytes were suggested to be useful measures to the immune responsiveness of the patients with GI carcinomas.
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