4.6 Article

Momordica charantia Extract Confers Protection Against Hypertension in Dahl Salt-Sensitive Rats

Journal

PLANT FOODS FOR HUMAN NUTRITION
Volume 77, Issue 3, Pages 373-382

Publisher

SPRINGER
DOI: 10.1007/s11130-022-00971-6

Keywords

Momordica charantia; Hypertension; Dahl salt-sensitive rats; Nitric oxide

Funding

  1. National Natural Science Foundation of China [82070751]
  2. Objective-oriented Project of Xi'an Jiaotong University [xzy022020038]

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Hypertension is a major factor in cardiovascular disease and high salt intake is a key risk factor. Dietary Momordica charantia may help prevent salt-induced hypertension by increasing the synthesis of nitric oxide and arginine. It also improves renal function and acts as an antioxidant to prevent oxidative stress.
Hypertension is one of the main factors of cardiovascular disease worldwide and is strongly related to the overall mortality. High salt intake is a major risk factors for hypertension. Identifying functional foods that can help prevent mechanistic abnormalities mediating salt-induced hypertension is an issue of considerable nutraceutical and scientific interest. Dietary Momordica charantia may be an alternative approach to avoid salt-induced hypertension. Dahl salt-sensitive (DSS) rats were used to determine whether Momordica charantia water extracts (ME) exerts anti-hypertensive effects in the present study. ME gavage could significantly prevented the increase of blood pressure, blood urea nitrogen, creatinine, and urine protein-to-creatinine ratio of DSS rats. Metabolomics analysis indicated that high-salt diet induced abnormal amino acid metabolism was related to nitric oxide (NO) deficiency, but ME gavage could upregulate the activities of nitric oxide synthase, aspartate aminotransferase, argininosuccinate lyase, argininosuccinate synthase and restore endogenous synthesis of arginine and NO. Meanwhile, renal function was improved after ME gavage. Citrulline, as one of the important component in ME, could attenuate salt-induced hypertension by increasing endogenous synthesis of arginine and NO. Antioxidants in ME, such as phenolic compound, may avoid high-salt induced oxidative stress in DSS rats, which may be another mechanism by which ME prevented blood pressure increase. Thus, the present study indicated that feeding Momordica charantia could avoid high-salt-induced hypertension in DSS rats.

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