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. 2017 Nov 24;18(12):2512. doi: 10.3390/ijms18122512

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© 2017 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Inhibitory effects of the compounds isolated from Hypericum laricifolium Juss.: (A) α-glucosidase inhibitory activity; (B) aldose reductase (AR) inhibitory activity; (C) 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity; (D) 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical scavenging activity. Acarbose was used as positive control for the α-glucosidase assay, quercetin as positive control for the aldose reductase assay, l-ascorbic acid as positive control for the DPPH assay, and trolox as positive control for the ABTS assay. * The asterisk indicates a significant difference compared to positive control group (p < 0.05).