The antioxidant, antidiabetic, and antihyperlipidemic effects of the polyphenolic extract from Salvia blancoana subsp. mesatlantica on induced diabetes in rats

• Published in: Bioresources and bioprocessing Vol. 11; no. 1; pp. 62 - 18
• Main Authors: Maache, Souad, Laaroussi, Hassan, Soulo, Najoua, Nouioura, Ghizlane, Boucetta, Nabil, Bouslamti, Mohammed, Saghrouchni, Hamza, A. Bin Jardan, Yousef, Ibenmoussa, Samir, Bourhia, Mohammed, Lyoussi, Badiaa, Elarabi, Ilham
• Format: Journal Article
• Language: English
• Published: Singapore Springer Nature Singapore 26.06.2024; Springer Nature B.V; SpringerOpen
• Subjects: Alloxan; Anti-diabetic; Antioxidant; Antioxidants; Bioactive compounds; Biochemical Engineering; Chemical compounds; Chemistry; Chemistry and Materials Science; Diabetes; Diabetes mellitus; Diabetes mellitus (non-insulin dependent); Environmental Engineering/Biotechnology; Extract; Flavones; Flavonols; Free radicals; Glibenclamide; Herbal medicine; Industrial and Production Engineering; Lipids; Medicinal plants; Phenolic compounds; Phenols; Plant extracts; Salvia blancoana subsp. mesatlantica; Scavenging; Vanillin; Weight loss; Anti-diabetic; Extract; Antioxidant; Chemical compounds; subsp; Salvia blancoana subsp. mesatlantica
• ISSN: 2197-4365; 2197-4365
• DOI: 10.1186/s40643-024-00769-1

Currently, several studies have demonstrated the benefits of medicinal plants in managing type 2 diabetes. In this work, we evaluated the beneficial effects of the polyphenolic extract (PESB) from Salvia blancoana subsp . mesatlantica in the management of hypercaloric-feeding and small-dose alloxan-brought type 2 diabetes in rats. We analyzed the chemical constituents of the extract, including flavones and flavonols content, to understand its biological action. The antioxidant activities were evaluated by total antioxidant action, scavenging effect of the free radical DPPH, and reducing power. The obtained results showed that the value of TFC was estimated at 31.90 ± 0.34 mgEQ/g in the PESB extract. The total antioxidant capacity was estimated at 593.51 ± 4.09 mg (EAA)/g, the value of DPPH IC 50 was 7.3 ± 0.00 μg/mL, and the value of EC 50 of reducing power was estimated at 6.43 ± 0.01 μg/mL. In total, 14 phenolic compounds were identified and the naringin was the most dominant (63.19%) while the vanillin was the less recorded (0.10%). Serum glucose decreased significantly (p < 0.05) in rats given PESB (100 mg/kg) after four weeks. Glibenclamide (GLB) and PESB reduced HbA1c and increased plasma insulin in diabetic rats, restoring HOMA-β and HOMA-IR levels to near-normal. Additionally, diabetic rats treated with GLB or PESB showed statistically equivalent results to those of non-diabetic rats regarding hepatic enzymes, renal and lipid markers, as well as cardiovascular indices. The weight loss was significantly lower in diabetic rats receiving a dose of PESB (100 mg/kg), and GLB compared to corresponding untreated diabetic rats (p < 0.01). PESB and GLB showed a prominent protective function in the pancreas, liver, and kidney tissues. This investigation demonstrates the capacity of extracts from leaves of S. blancoana subsp. mesatlantica to manage diabetes mellitus due to their richness in a wide range of bioactive compounds. Therefore, more investigations are required to estimate the safety of the plant use. Graphical Abstract