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Abstract Title:

Apigenin attenuates hippocampal oxidative events, inflammation and pathological alterations in rats fed high fat, fructose diet.

Abstract Source:

Biomed Pharmacother. 2017 Feb 23 ;89:323-331. Epub 2017 Feb 23. PMID: 28237914

Abstract Author(s):

Jagan Kalivarathan, Sathiya Priya Chandrasekaran, Kalpana Kalaivanan, Vidhya Ramachandran, Anuradha Carani Venkatraman

Article Affiliation:

Jagan Kalivarathan

Abstract:

High calorie diet promotes oxidative stress and chronic low grade inflammation that predispose to brain dysfunction and neurodegeneration. Hippocampus region of the brain has been shown to be particularly sensitive to high calorie diet. We hypothesize that apigenin (API), a flavonoid could attenuate hippocampal derangements induced by high fat-high fructose diet (HFFD). In this study, we investigated the effects of API on oxidative stress and inflammation in the hippocampus, and compared with those of sitagliptin (STG), a standard drug with neuroprotective properties. The markers of oxidative stress and inflammation were examined using biochemical assays, western blotting and immunohistochemistry techniques. HFFD-fed rats showed severe pathological alterations and API treatment rescued the hippocampus from the derangements. API significantly improved the antioxidant machinery, reduced ROS levels and prevented the activation of the stress kinases, inhibitor of kappa B kinase beta (IKKβ) and c-Jun NH2 terminal kinase (JNK), and the nuclear translocation and activation of nuclear factor kappa B (NF-κB). The plasma levels of inflammatory cytokines were also reduced. Our findings suggest that hippocampal derangements triggered by HFFD feeding were effectively curtailed by API. Suppression of oxidative stress, NF-κB activation and JNK phosphorylation in the hippocampus are the mechanisms by which API offers neuroprotection in this model.

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