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Journal of Natural Medicines

Erschienen in:

01.04.2016 | Note

Two new prenylflavonoids from Epimedii Herba and their inhibitory effects on advanced glycation end-products

verfasst von: Keisuke Nakashima, Hiroyuki Miyashita, Hitoshi Yoshimitsu, Yukio Fujiwara, Ryoji Nagai, Tsuyoshi Ikeda

Erschienen in: Journal of Natural Medicines | Ausgabe 2/2016

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Abstract

Because inhibitors of advanced glycation end-products (AGEs), for example pyridoxamine, significantly inhibit the development of retinopathy and neuropathy in rats with streptozotocin-induced diabetes, treatment with AGE inhibitors is believed to be a potential strategy for the prevention of lifestyle-related diseases such as diabetic complications. In the present study, the MeOH extract of Epimedii Herba (EH; aerial parts of Epimedium spp.) was found to inhibit the formation of N ^ε-(carboxymethyl)lysine (CML) and N ^ω-(carboxymethyl)arginine (CMA) during incubation of collagen-derived gelatin with ribose. Furthermore, compounds with inhibitory effects against CML and CMA formation were isolated from EH. Two new prenylflavonoids (compounds 1 and 2) and two known compounds (3 and 4) were found to significantly inhibit the formation of both CML and CMA; compound 4 (epimedokoreanin B) had the strongest inhibitory effect of the isolated compounds. These data suggest that epimedokoreanin B could prevent clinical complications of diabetes by inhibiting AGEs.

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Titel: Two new prenylflavonoids from Epimedii Herba and their inhibitory effects on advanced glycation end-products
verfasst von: Keisuke Nakashima
Hiroyuki Miyashita
Hitoshi Yoshimitsu
Yukio Fujiwara
Ryoji Nagai
Tsuyoshi Ikeda
Publikationsdatum: 01.04.2016
Verlag: Springer Japan
Erschienen in: Journal of Natural Medicines / Ausgabe 2/2016
Print ISSN: 1340-3443
Elektronische ISSN: 1861-0293
DOI: https://doi.org/10.1007/s11418-015-0962-0

Springer Medizin

Abstract

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