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Anticholinesterase activity and Antioxidant Effect of Vitamin E in Aluminum Chloride Induced Toxicity in Drosophila Melanogaster

Aluminum chloride (AlCl3) has been used to model neurotoxicity and Alzheimer’s disease (AD) like neurodegeneration in various animal models (Bondy, 2010). AlCl3 toxicity has been reported to be associated with impaired locomotor performance, learning, memory, oxidative stress and cholinergic impairment which are features seen in AD patients (Ribes et al., 2008). AlCl3acts as a cholinotoxin (Gulya et al., 1990) and cause alterations on the cholinergic activity, a key event in the neurochemistry of AD (Rakonczay et al., 2005). Reduced cholinergic function in the brain has been shown to result in memory impairment in AD (Mukherjee et al., 2007). The use of compounds to inhibit acetylcholinesterase (AChE) activity (to reduce the hydrolysis of acetylcholine) has been a therapeutic approach in managing AD (Taylor and Radić 1994). Vitamin E has been proposed as a potential clinical intervention for AD given its antioxidant and anti‐inflammatory characteristics. However, there are very few studies on its anticholinesterase activity and there also controversies as to whether vitamin E is beneficial in AD. We therefore evaluated the anticholinesterase and antioxidant activity of vitamin E in aluminium chloride induced toxicity in Drosophila melanogaster.