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(A) Acetylcholinesterase inhibition of galantamine (standard) and extract/fractions, and (B) butrylcholinesterase inhibition of galantamine (standard) and extract/fractions of P. afra. NHPA, n-hexane fraction; CHPA, chloroform fraction; BUTPA, n-butanol fraction; STND, galantamine (Standard); MPA, methanolic extract. For each parameter, vertical bars represent mean data ± SE (n = 3).
