Objective: To observe the effect of allitridi on the expression of proliferating cell nuclear antigen (PCNA) of cultured rabbit aortic smooth muscle cell (SMC).
Methods: The expression of PCNA was examined with immunohistochemical technique (LSAB method) and the contents of superoxide dismutase (SOD), lipid peroxide (LPO), prostacyclin (PGI2) and cyclic adenosine monophosphate (cAMP) in medium were simultaneously determined.
Results: Allitridi has the effects of increasing SOD activity, decreasing LPO, elevating PGI2 and cAMP, reducing the expression of PCNA (all P < 0.05-0.01).
Conclusion: Allitridi could inhibit SMC proliferation.