Fig. 2. Effect of CS water extract on iNOS and COX-2 expression in Aβ25-35-treated SH-SY5Y cells. (A) iNOS protein expression, (B) COX-2 protein expression. The results are presented as mean±standard derviation. The different letters (a, b, c, d) are significantly different (P<0.05) by Duncan’s multiple range test. CS: Cuscutae semen, iNOS: inducible nitric oxide synthase, COX-2: cyclooxygenase-2, Aβ25-35: amyloid beta fragment 25-35.