Abstract Title:

Neuroprotective effect of Capsicum annuum var. abbreviatum against hydrogen peroxide-induced oxidative stress in HT22 hippocampus cells.

Abstract Source:

Biosci Biotechnol Biochem. 2018 Sep 19:1-9. Epub 2018 Sep 19. PMID: 30227776

Abstract Author(s):

Eui-Baek Byun, Woo-Young Park, Woo Sik Kim, Ha-Yeon Song, Nak-Yun Sung, Eui-Hong Byun

Article Affiliation:

Eui-Baek Byun


Phenolic compounds isolated from pepper (Capsicum annum) have been demonstrated to have neuroprotective effects, whereas the physiological properties of Capsicum annuum var. abbreviatum (CAA) have not been studied. Thus, we investigate the chemical composition and neuroprotective activity of CAA extract (CAAE) in HT22 hippocampus cells against HO-induced neurotoxicity. CAAE treatment resulted in a significant protection of HO-exposed HT22, this protection ultimately occurred through an inhibition of MDA and ROS levels and an induction of SOD activity. Furthermore, CAAE treatment reduced H0-induced apoptosis though decreasing the expression of pro-apoptotic factors (Bax, cytochrome c, and cleaved caspases-3) while increasing the expression of the anti-apoptotic factors (Bcl-2), as well as the accumulation of nucleus-Nrf2-mediated HO-1 signaling. Interestingly, CAAE has a high concentration of unique phenolic compositions (chlrogenic acid, tangeretin, etc.) than other capsicum annum extracts. Altogether, these findings suggest that CAAE can be a useful natural resource for alleviating neurodegenerative diseases.

Study Type : In Vitro Study

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