Quercetin Prevents Hypertension in Dahl Salt-sensitive Rats F ed a High-salt Diet Through Balancing Endothelial Nitric Oxide Synthase and Sirtuin 1

Title:Quercetin Prevents Hypertension in Dahl Salt-sensitive Rats F ed a High-salt Diet Through Balancing Endothelial Nitric Oxide Synthase and Sirtuin 1

Volume: 27 Issue: 16

Author(s): Guanji Wu, Fuqiang Liu, Qing Cui, Tao Zhang, Jianjun Bao and Junjun Hao*

Affiliation:

• Department of Cardiovascular Surgery, First Affiliated Hospital, Medical College, Xi'an Jiaotong University, Xi’an, China

Abstract:

Background: A high-salt diet is a leading dietary risk factor for elevated blood pressure and cardiovascular disease. Quercetin reportedly exhibits cardioprotective and antihypertensive therapeutic effects.

Objectives: The objective of this study is to examine the effect of quercetin on high-salt dietinduced elevated blood pressure in Dahl salt-sensitive (SS) rats and determine the underlying molecular mechanism.

Materials and Methods: Rats of the Dahl SS and control SS-13 BN strains were separated into five groups, SS-13 BN rats fed a low-salt diet (BL group), SS-13 BN rats fed a high-salt diet (BH group), Dahl SS rats fed a low-salt diet (SL group), Dahl SS rats fed a high-salt diet (SH group), and SH rats treated with quercetin (SHQ group). Blood pressure was checked three weeks into the course of treatment, and biochemical markers in the urine and serum were examined. Additionally, western blot was done to evaluate the sirtuin 1 (SIRT1) and endothelial nitric oxide synthase (eNOS) expression levels. Immunohistochemical analysis was performed to verify SIRT1 levels.

Results: We demonstrated that a high-salt diet elevated blood pressure in both SS-13 BN and Dahl SS rats, and quercetin supplementation alleviated the altered blood pressure. Compared with the SH group, quercetin significantly elevated the protein expression of SIRT1 and eNOS. Immunohistochemistry results further confirmed that quercetin could improve the protein expression of SIRT1.

Conclusion: Quercetin reduced blood pressure by enhancing the expression of SIRT1 and eNOS in Dahl SS rats fed a high-salt diet.

Cite this article as:

Wu Guanji, Liu Fuqiang, Cui Qing, Zhang Tao, Bao Jianjun and Hao Junjun*, Quercetin Prevents Hypertension in Dahl Salt-sensitive Rats F ed a High-salt Diet Through Balancing Endothelial Nitric Oxide Synthase and Sirtuin 1, Combinatorial Chemistry & High Throughput Screening 2024; 27 (16) . https://dx.doi.org/10.2174/0113862073284196240214082904

DOI https://dx.doi.org/10.2174/0113862073284196240214082904	Print ISSN 1386-2073
Publisher Name Bentham Science Publisher	Online ISSN 1875-5402