objectives To investigate the effects of arecoline on the proliferation and differentiation of 3T3-L1 preadipocytes and to elucidate its possible mechanism.Methods 3T3-L1 preadipocytes were cultured and treated with different concentrations of arecoline(10、30、50、100 μmol /L),the proliferation and differentiation of 3T3-L1 preadipocytes were evaluated by MTT methods and oil red O staining,respectively.The expressions of peroxisome proliferation activated receptor γ(PPAR γ) and CAAT/ enhancer binding protein(...