Okra (Abelmoschus esculentusL. moech) Fruit Powder Standardized in Flavonoids Improves Glycemic Control and Metabolic Memory in Acute and Chronic Hyperglycemia

Autor: Apolinário da Silva, Ana Paula, Xavier da Silva Neto, João, Wemmenson Gonçalves, Luiz Francisco, de Lima Rebouças, Emanuela, Flávio da Silva Lopes, Francisco, Barbosa da Silva, Wildson Max, Maia de Morais, Selene, Bezerra da Silva, Bruno, Florindo Guedes, Maria Izabel
Zdroj: Food Bioscience; 20240101, Issue: Preprints
Abstrakt: Type 2 diabetes mellitus (T2DM) is a chronic disease with high global prevalence characterized by persistent hyperglycemia. Elevated blood glucose levels are associated with constant oxidative stress and increased protein glycation, establishing a metabolic memory state. Therefore, the efficacy of the Okra (Abelmoschus esculentusL. moech) Fruit Powder Standardized in Flavonoids (OFP-SF) was evaluated in glucose homeostasis, oxidative stress, and metabolic memory, using zebrafish models of acute and chronic hyperglycemia. The OFP-SF was produced from dried fresh fruits and subsequently subjected to characterization regarding its antioxidant potential and chemical composition. Finally, the product was standardized to contain 1.6% flavonoids. In acute hyperglycemia, OFP-SF at doses of 125 μg and 250 μg demonstrated the ability to normalize blood glucose levels, reaching levels of 94.56 ± 5.9 mg/dL and 76.88 ± 8.9 mg/dL, respectively, when administered prior to glucose overload. The same doses were tested in a chronic hyperglycemia model, where after a seven-day treatment, animals receiving 125 and 250 μg of OFP-SF exhibited glycemic values of 73.45 ± 15.67 mg/dL and 33.96 ± 5.31 mg/dL, respectively, comparable to those observed in the Control group (49.48 ± 2.77 mg/dL). Furthermore, OFP-SF was able to mitigate metabolic memory by reducing oxidative stress and protein glycation in the brain, liver, and eye tissues of hyperglycemic zebrafish. These findings provide a basis for developing new products that utilize the phytochemical potential of A. esculentusfruits for the prevention and adjunctive treatment of T2DM.
Databáze: Supplemental Index