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자료유형
학술저널
저자정보
김민경 (과학기술연합대학원대학교 식품생명공학과) 조치홍 (한국식품연구원 기능성소재연구단) 염가희 (과학기술연합대학원대학교 식품생명공학과) 박용곤 (한국식품연구원) 이상훈 (한국식품연구원)
저널정보
한국키틴키토산학회 Journal of Chitin and Chitosan Journal of Chitin and Chitosan Vol.25 No.4
발행연도
2020.1
수록면
175 - 183 (9page)

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In this study, we evaluated the anti-glycation effects and renal protective properties of Sargassum fusiforme extract against advanced glycation end-products (AGEs)-induced oxidative stress. Among the extracts of S. fusiforme with different concentrations of ethanol (0, 10, 30, 70, and 95%(v/v)), 70% aqueous ethanol extract of S. fusiforme (70% EtOH SFE) showed the highest total phenolics, condensed tannin, and total flavonoid contents (0.797 ± 0.036 mg GAE/g DW, 0.298 ± 0.009 mg CE/g DW, 0.381 ± 0.060 mg CE/g DW, respectively). All tested extracts of S. fusiforme showed concentration-dependent anti-glycation activity, in particular, 70% EtOH SFE exhibited the most prominent anti-glycation effects in all in vitro experiments. 70% EtOH SFE inhibited 7.13% AGEs-BSA and collagen cross-link at a concentration of 100 μg/mL , which was significantly (p < 0.05) higher than aminoguanidine (36.9%.), the well-known cross-link inhibitor. 70% EtOH SFE (100 μg/mL) showed AGEs-BSA and collagen cross-link breaking activity to the 17.9%. Additionally, 70% EtOH SFE inhibited formation of AGEs in a concentration-dependent manner up to 66.8%. Furthermore, treatment with 70% EtOH SFE not only increased the viability of methylglyoxal (MGO)-induced mesangial cells to 64.9%, but also dramatically reduced the intracellular oxidative stress level to 94.9%. The treatment of 70% EtOH SFE was decreased MGO-induced apoptotic cell death by 21.9% while aminoguanidine by 33.4%. Consequently, our results suggest that 70% EtOH SFE may be a good source of natural therapeutic agent for management of diabetic complications via anti-glycation effect and renal protective ability against MGO-induced oxidative stress.

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