Abstract Title:

Sea Buckthorn Fruit Oil Extract Alleviates Insulin Resistance through the PI3K/Akt Signaling Pathway in Type 2 Diabetes Mellitus Cells and Rats.

Abstract Source:

J Agric Food Chem. 2017 Jan 30. Epub 2017 Jan 30. PMID: 28134520

Abstract Author(s):

Shan Gao, Qing Guo, Chengguang Qin, Rui Shang, Zesheng Zhang

Article Affiliation:

Shan Gao


Sea buckthorn fruit oil is rich in palmitoleic acid (POA), which has been reported to play roles in many metabolic processes. In this study, a sea buckthorn fruit oil (SBFO) extract was evaluated through in vitro experiments (the does were 50, 100, 200 and 400μM) and in vivo experiments (the does were 100, 200 and 300 mg/kg·day) to explore its mechanism of action in the treatment of type 2 diabetes mellitus (T2DM). The results revealed that the SBFO extract effectively increased the glucose uptake from 12.23 ± 1.09 to 14.90 ± 1.48 mmol/l in IR HepG2cells, lowered blood glucose (the reductions rates of blood glucose in groups treated with SBFO extract at 200 and 300 mg/kg·day were 10.47% and 13.79%, respectively) and improved insulin indices from -6.11 ± 0.10 to -5.45 ± 0.31 after 4 weeks treatment with SBFO extract at 300 mg/kg·day in T2DMSD rats. RT-PCR and western blotting analyses suggested that the SBFO extract could promote the expression of phosphatidylinositol-3-kinase (PI3K) and glycogen synthesis (GS) while inhibiting the expression of glycogen synthesis kinase-3β (GSK-3β). Thus, the SBFO extract played a positive role inalleviating T2DM through the PI3K/Akt signaling pathway inHepG2 cells and diabetic rats and could be used for the future development of functional food and dietary supplements.

Study Type : Animal Study, In Vitro Study

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