F1000Research · 2025
Hypoglycemic effect of the aqueous extract from Acalypha argomuelleri Briq. (Euphorbiaceae) 'Sweet stick' leaves in Rattus rattus var. albinus.
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Morales Ramos Jorge Guillermo, Loja Herrera Berta, Rodríguez Alayo Néstor Manuel, Benel Fernández Doyle Isabel, Pérez Medina Luis Felipe, Loayza Estrada Carolina Susana, Mocarro Willis María Ema Soledad, Sánchez Marín César
Аннотация
INTRODUCTION: Diabetes mellitus (DM) is a chronic metabolic disease representing a global public health concern and is associated with severe complications such as cardiovascular and renal diseases. Although several species of the genus Acalypha have demonstrated biological activity, no prior studies have evaluated the hypoglycemic effect of Acalypha argomuelleri Briq., making this study relevant.
METHOD: The hypoglycemic effect of the aqueous leaf extract of A. argomuelleri Briq. (AAAE) was evaluated in an experimental model using Rattus rattus var. albinus (males). A randomized, prospective design was employed, consisting of a control group and three treatment groups receiving doses of 100, 150, and 300 mg/kg of the extract, respectively. Hyperglycemia was induced via oral glucose administration.
RESULTS: The qualitative phytochemical analysis of AAAE revealed the presence of flavonoids, phenols, cardiotonic glycosides, and diterpenes, with no reducing sugars. The 300 mg/kg dose produced a significant and sustained reduction in blood glucose levels, reaching near-normal values at 90 minutes, demonstrating a dose- and time-dependent hypoglycemic effect.
DISCUSSION: The study confirmed that AAAE has a dose-dependent hypoglycemic effect, with optimal efficacy at 300 mg/kg. This dose showed a faster and more sustained reduction in glucose levels compared to 100 and 150 mg/kg, suggesting higher efficacy at elevated concentrations. The identified flavonoids and phenols, associated with glucose metabolism modulation and pancreatic β-cell protection, likely explain the observed effect. The absence of reducing sugars indicates the hypoglycemic effect is linked to secondary metabolites.
CONCLUSIONS: The AAAE exhibited a significant dose- and time-dependent hypoglycemic effect, with optimal efficacy at 300 mg/kg after 90 minutes. These findings support the potential of A. argomuelleri Briq. as a natural alternative for blood glucose control, though further studies are needed to assess its safety and efficacy in clinical models.
METHOD: The hypoglycemic effect of the aqueous leaf extract of A. argomuelleri Briq. (AAAE) was evaluated in an experimental model using Rattus rattus var. albinus (males). A randomized, prospective design was employed, consisting of a control group and three treatment groups receiving doses of 100, 150, and 300 mg/kg of the extract, respectively. Hyperglycemia was induced via oral glucose administration.
RESULTS: The qualitative phytochemical analysis of AAAE revealed the presence of flavonoids, phenols, cardiotonic glycosides, and diterpenes, with no reducing sugars. The 300 mg/kg dose produced a significant and sustained reduction in blood glucose levels, reaching near-normal values at 90 minutes, demonstrating a dose- and time-dependent hypoglycemic effect.
DISCUSSION: The study confirmed that AAAE has a dose-dependent hypoglycemic effect, with optimal efficacy at 300 mg/kg. This dose showed a faster and more sustained reduction in glucose levels compared to 100 and 150 mg/kg, suggesting higher efficacy at elevated concentrations. The identified flavonoids and phenols, associated with glucose metabolism modulation and pancreatic β-cell protection, likely explain the observed effect. The absence of reducing sugars indicates the hypoglycemic effect is linked to secondary metabolites.
CONCLUSIONS: The AAAE exhibited a significant dose- and time-dependent hypoglycemic effect, with optimal efficacy at 300 mg/kg after 90 minutes. These findings support the potential of A. argomuelleri Briq. as a natural alternative for blood glucose control, though further studies are needed to assess its safety and efficacy in clinical models.