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Article Publish Status: FREE
Abstract Title:

High-fat diet-induced memory impairment and anxiety-like behavior in rats attenuated by peel extract offruit via atheroprotective, antioxidant and anti-inflammatory actions.

Abstract Source:

Metabol Open. 2021 Mar ;9:100077. Epub 2021 Jan 4. PMID: 33490944

Abstract Author(s):

Abayomi M Ajayi, Kayode A John, Ilerioluwa B Emmanuel, Emmanuel O Chidebe, Aduragbenro D A Adedapo

Article Affiliation:

Abayomi M Ajayi

Abstract:

Background: Pineapple peel is a waste component of pineapple with valuable source of metabolites as phytoactive compounds in ameliorating metabolic-related disorders. This study investigated the atheroprotective and neuroprotective effects of peel extract offruit (PEAC) in normal diet (ND) and high-fat diet (HFD) fed rats.

Methods: Male Wistar rats were fed ND or HFD for 9 weeks, and beginning from the 6week animals were also orally treated with PEAC (200 mg/kg). Memory performance was assessed using Y-maze test (YMT) and novel object recognition test (NORT) while anxiolytic-like effect was assessed on the elevated plus maze (EPM). Serum cholesterol, triglycerides and HDL-C were determined, while LDL-C and atherogenic risk calculated. Serum and brain tissue malondialdehyde, reduced glutathione, catalase were determined. Brain acetylcholinesterase activity and interleukin-6 level were also determined.

Results: PEAC significantly attenuated HFD-induced reduction in correct alternation in YMT, and discrimination index in NORT. Also, PEAC demonstrated anxiolytic-like activity in EPM test. PEAC significantly improved lipid profile and decreased risk of atherogenicity in ND and HFD-fed rats. In addition, PEAC improves serum and brain antioxidant status by decreasing malondialdehyde and increasing GSH and catalase. PEAC significantly impaired HFD-induced brain acetylcholinesterase activity and IL-6 levels.

Conclusion: These findings suggest that peel extract offruit may protect against diet-induced behavioral disturbances via atheroprotective, antioxidants and anti-inflammatory activities.

Study Type : Animal Study

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