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Diabetes, Metabolic Syndrome and Obesity: Targets and Therapy 2020-Jul

The Effect of Chilgoza Pine Nut ( Pinus gerardiana Wall.) on Blood Glucose and Oxidative Stress in Diabetic Rats

Straipsnius versti gali tik registruoti vartotojai
Prisijungti Registracija
Nuoroda įrašoma į mainų sritį
Seyed Hosseini
Maryam Vali
Mohammad Haghighi-Zade
Amir Siahpoosh
Reza Malihi

Raktažodžiai

Santrauka

Purpose: Diabetes can increase oxidative stress in various tissues of the body, and the progress of this process is associated with intensification of the complications of diabetes. The current study purposed to evaluate the protective effect of Pinus gerardiana (PG) seed on oxidative stress induced by diabetes in the liver and serum of streptozotocin (STZ)-induced diabetic rats.

Materials and methods: This interventional study was performed on 36 male Wistar rats. The rats were randomly divided into 6 groups (healthy controls, healthy treated with 3% and 6% (PG), diabetic control, diabetic treated with 3% and 6% (PG) doses). After 6 weeks of intervention, weight, glucose, and oxidative stress parameters in serum and liver including total antioxidant capacity, malondialdehyde, total thiol and superoxide dismutase activity were measured. Data analysis was done by statistical software version 16 and Tukey's one-way ANOVA tests.

Results: Diabetic rats showed significantly higher malondialdehyde and fasting glucose levels (12±1.2 mmol/L) and significant reductions in fasting insulin serum, weight (-37%), and activity of superoxide dismutase enzymes, total thiol groups, and total antioxidant capacity of serum and liver (about +49% in liver and +16% in serum) (p < 0.001) compared with the healthy groups. Oral administration of PG nuts to diabetic rats caused a significant reduction in malondialdehyde and fasting glucose levels (-43%) and weight loss (+15%), and a significant increase in activity of superoxide dismutase enzymes, total thiol groups, and total antioxidant capacity of serum and liver (p < 0.001).

Conclusion: The present study concluded that PG can decrease fasting blood glucose, improve insulin resistance, reduce weight loss, and improve oxidative stress indices in the serum and liver of STZ-induced diabetic rats. It is a potential therapeutic food supplement for the treatment and prevention of hyperglycemia and high oxidative stress of diabetes.

Keywords: Pinus gerardiana; blood glucose; diabetes mellitus; oxidative stress; rat.

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