[Immunological parameters in subjects with essential arterial hypertension. I. Lymphocyte subpopulations]

Peripheral venous blood lymphocytes were defined, in 21 subjects with essential hypertension and 20 controls, on the basis of reactivity with monoclonal antibodies OKT3, OKT4, OKT8, OK1Ia. Total lymphocyte count, OKT3+ and OKT4+ cells percentage were similar in normal and hypertensive. OKT8+ cells percentage was significantly lower only in hypertensive stage II and III patients (WHO classification).