In vitro biological assessment of Berberis vulgaris and its active constituent, berberine: antioxidants, anti-acetylcholinesterase, anti-diabetic and anticancer effects - Abd El-Wahab, A E; Ghareeb, D A; Sarhan, E E; Abu-Serie, M M; El Demellawy, M A (BMC Complement Altern Med, 2013)