Hibiscus sabdariffa L. Extract Alleviates Vascular Endothelial Dysfunction by Enhancing Nitric Oxide Bioavailability in High-Fructose Diet Induced Insulin Resistance Rats

Authors

  • Sarawoot Bunbupha
  • Parichat Prachaney
  • Thewarid Berkban
  • Upa Kukongviriyapan
  • Poungrat Pakdeechote

Keywords:

Hibiscus sabdariffa L.; insulin resistance; NO bioavailability

Abstract

Background and Objectives: This study evaluated the effect of Hibiscus sabdariffa extract  (HSE) on vascular endothelial function and mechanism involved in insulin resistance rats induced by high-fructose diet (HFD).

Methods: Male Sprague-Dawley rats were fed with HFD for 18 weeks to induce insulin resistance. Oral administration of HSE (200 or 500 mg/kg/day) was performed in the last four weeks. Vascular function and metabolic parameters were evaluated.

Results: HSE (200 and 500 mg/kg) improved glucose tolerance, reduced blood pressure, and restored vascular endothelial dysfunction in rats fed with HFD (p<0.05). Moreover, HSE 500 mg/kg enhanced nitric oxide bioavailability by restoring plasma NOx level and eNOS expression, and reducing O2•− production in insulin resistance rats (p<0.05).

Conclusion: Our results suggest that HSE alleviated vascular endothelial dysfunction in HFD fed rats that was associated with increasing in NO bioavailability.

References

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Published

2018-06-22

How to Cite

1.
Bunbupha S, Prachaney P, Berkban T, Kukongviriyapan U, Pakdeechote P. Hibiscus sabdariffa L. Extract Alleviates Vascular Endothelial Dysfunction by Enhancing Nitric Oxide Bioavailability in High-Fructose Diet Induced Insulin Resistance Rats. SRIMEDJ [Internet]. 2018 Jun. 22 [cited 2024 Dec. 24];33(4):294-300. Available from: https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/130005

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Original Articles