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Abstract Title:

Antioxidant, anti-inflammatory, and hypoglycemic effects of the leaf extract from Passiflora nitida Kunth.

Abstract Source:

Appl Biochem Biotechnol. 2013 Jul ;170(6):1367-78. Epub 2013 May 12. PMID: 23666642

Abstract Author(s):

Carlos Victor Montefusco-Pereira, Maria José de Carvalho, Ana Paula de Araújo Boleti, Lorisa Simas Teixeira, Humberto Reis Matos, Emerson Silva Lima

Article Affiliation:

Carlos Victor Montefusco-Pereira

Abstract:

Diabetes mellitus is a metabolic disease characterized by abnormally high plasma glucose levels, leading to major complications, such as insulin resistance, obesity, hyperlipidemia, and hypertension, also with alterations in the immune and neuronal systems. Brazilian plants have been studied as important sources for new molecules with medicinal properties. The genus Passiflora known as"Maracujá"has been used as a traditional folk medicine for a long time, so an investigation was performed regarding an endemic kind of passion fruit (Passiflora nitida Kunth) from Amazonas, Brazil. Here, we aimed to determine its potential biological activity against metabolic syndrome, oxidative stress, pain, and inflammation. The hydroethanol leaf extract revealed an in vitroα-glucosidase inhibitory activity of 50 % inhibitory concentration (IC₅₀) = 6.78 ± 0.31 μg/mL and an α-amylase inhibition of IC₅₀= 93.36 ± 4.37. In vivo, experiments of different saccharide tolerance resulted in significant glycemia control and, with alloxan-diabetic mice, resulted in adecrease of total cholesterol, a hypoglycemic effect, and an antioxidant activity by thiobarbituric acid-reactive substances measurement. Also, it decreased the carrageenan-induced edema volume and the rate of writhing as a nociceptive response. These results indicate positive effects of P. nitidaextract and its potential to inhibit metabolic syndrome.

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