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Molecules 2017, 22(4), 599; doi:10.3390/molecules22040599

Acute Hypoglycemic and Antidiabetic Effect of Teuhetenone A Isolated from Turnera diffusa

1
Departmento de Química Analítica, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey, N.L., C.P. 64460, Mexico
2
Depto. de Fisiología y Fisiopatología, Facultad de Medicina, Universidad Autónoma del Estado de Morelos, Calle Leñeros s/n, Col. Los Volcanes, Cuernavaca Mor. C.P. 62350, Mexico
Both authors contributed equally.
*
Author to whom correspondence should be addressed.
Academic Editor: Thomas J. Schmidt
Received: 10 February 2017 / Revised: 28 March 2017 / Accepted: 29 March 2017 / Published: 8 April 2017
(This article belongs to the Section Natural Products)
View Full-Text   |   Download PDF [1487 KB, uploaded 8 April 2017]   |  

Abstract

Diabetes mellitus is a chronic degenerative disease that causes long-term complications and represents a serious public health problem. Turnera diffusa (damiana) is a shrub that grows throughout Mexico and is traditionally used for many illnesses including diabetes. Although a large number of plant metabolites are known, there are no reports indicating which of these are responsible for this activity, and this identification was the objective of the present work. Through bioassay-guided fractionation of a methanolic extract obtained from the aerial part of T. diffusa, teuhetenone A was isolated and identified as the main metabolite responsible for the plant’s hypoglycemic activity. Alpha-glucosidase inhibitory activity and cytotoxicity of this metabolite were determined. Hypoglycemic and antidiabetic activities were evaluated in a murine model of diabetes in vivo, by monitoring glucose levels for six hours and comparing them with levels after administering various controls. Teuhetenone A was not cytotoxic at the tested concentrations, and did not show inhibitory activity in the glucosidase test, and the in vivo assays showed a gradual reduction in glucose levels in normoglycemic and diabetic mice. Considering these results, we suggest that teuhetenone A has potential as an antidiabetic compound, which could be further submitted to preclinical assays. View Full-Text
Keywords: diabetes mellitus; damiana; teuhetenone A; antidiabetic; Turnera diffusa diabetes mellitus; damiana; teuhetenone A; antidiabetic; Turnera diffusa
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MDPI and ACS Style

Parra-Naranjo, A.; Delgado-Montemayor, C.; Fraga-López, A.; Castañeda-Corral, G.; Salazar-Aranda, R.; Acevedo-Fernández, J.J.; Waksman, N. Acute Hypoglycemic and Antidiabetic Effect of Teuhetenone A Isolated from Turnera diffusa. Molecules 2017, 22, 599.

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