Hashish smoking and T-lymphocytes

To investigate the effect of long term hashish use on T-lymphocytes we have measured the incorporation of14C-thymidine by peripheral blood lymphocytes, unstimulated and stimulated by phytohemagglutinin, as well as the proportion and number of E-rosettes in 12 healthy male chronic users of the drug before and after a smoking session, and in 15 control subjects.