A T-helper/suppressor ratio in renal allograft recipients after various long-term immunosuppressive regimens

The response of T-helper and T-suppressor cells to various immunosuppressive regimens was studied in long surviving cadaveric renal allograft recipients. Eight patients were immunosuppressed with Azathioprine and corticosteroids, 12 recipients were treated with a combination of Cyclosporin A, corticosteroids and Azathioprine for 1 year. Both regimens decreased the Th/Ts ratio significantly as compared with healthy controls (p less than 0.05). No correlation between the Th/Ts ratio and the serum creatinine concentration was found. Likewise, the Th/Ts ratio did not correlate with Cyclosporin A blood levels.