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Cell Mol Biol (Noisy-le-grand). 2016 May 30;62(6):80-5.

Inhibitory activity on type 2 diabetes and hypertension key-enzymes, and antioxidant capacity of Veronica persica phenolic-rich extracts.

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Zabol University of Medical Sciences Zabol Iran.
Payamenoor University Department of Biology Tehran Iran.
Zabol University of Medical Sciences Zabol Medicinal Plants Research Center Zabol Iran
Milan State University Department of Agricultural and Environmental Sciences Milan Italy.
Milan State University Department of Biomedical, Surgical and Dental Sciences Milan Italy.
Sharif University of Technology Department of Chemistry Tehran Iran.


Veronica genus (Plantaginaceae) is broadly distributed in different habitats. In this study, the inhibitory activity of free soluble and conjugated phenolic extracts of Veronica persica on key enzymes associated to type 2 diabetes (α-glucosidase and α-amylase) and hypertension (angiotensin I converting enzyme, ACE) was assessed, as well as their antioxidant power. Our results showed that both the extracts inhibited α-amylase, α-glucosidase and ACE in a dose-dependent manner. In particular, free phenolic extract significantly (P<0.05) inhibited α-glucosidase (IC50 532.97 µg/mL), whereas conjugated phenolic extract significantly (P<0.05) inhibited α-amylase (IC50 489.73 µg/mL) and ACE (290.06 µg/mL). The enzyme inhibitory activities of the extracts were not associated with their phenolic content. Anyway, the inhibition of α-amylase, α-glucosidase and ACE, along with the antioxidant capacity of the phenolic-rich extracts, could represent a putative mechanism through which V. persica exerts its antidiabetes and antihypertension effects.

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