Zheng M, Chen S, Liu Y, He Y. α-Glucosidase inhibitory activities of constituents from
Psidium guajava leaves.
Nat Prod Res 2023:1-4. [PMID:
37506309 DOI:
10.1080/14786419.2023.2238113]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 06/19/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023]
Abstract
Psidium guajava is a plant of the Myrtaceae with various pharmacological activity. In this study, the water extract and the isolated compounds from guava leaves were evaluated for in vitro α-glucosidase inhibition using spectrophotometric method. Ellagic acid, quercetin, quercetin-3-O-glucuronide, avicularin, isoquercitrin, and quercetin-3-galactoside showed α-glucosidase inhibitory activity, and their IC50 value were 25.0, 41.0, 53.5, 46.9, 60.0 and 72.1 μg/mL, respectively compared with the positive control acarbose (IC50 49.2 μg/mL). This study could provide a theoretical basis for the application of Psidium guajava in the treatment of hyperglycemia.
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