Saengnak B, Kanla P, Samrid R, Berkban T, Mothong W, Pakdeechote P, Prachaney P. Clitoria ternatea L. extract prevents kidney damage by suppressing the Ang II/Nox4/oxidative stress cascade in l-NAME-induced hypertension model of rats.
Ann Anat 2021;
238:151783. [PMID:
34144158 DOI:
10.1016/j.aanat.2021.151783]
[Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 05/16/2021] [Accepted: 05/26/2021] [Indexed: 01/20/2023]
Abstract
Clitoria ternatia L. (CT) has been reported to have anti-inflammatory and antioxidant effects. This study investigated the effect of CT aqueous flower extract on blood pressure and renal alterations in Nω-nitro-l-arginine methyl ester hydrochloride (l-NAME)-induced hypertensive rats. Male Sprague Dawley rats received l-NAME in drinking water and were treated with CT flower extract or lisinopril. CT aqueous flower extract and lisinopril alleviated l-NAME-induced hypertension (p < 0.05). Glomerular extracellular matrix accumulation, renal fibrosis, and increased serum creatinine levels were observed in l-NAME-induced hypertensive rats and attenuated by CT flower extract or lisinopril co-treatment (p < 0.05). High levels of plasma angiotensin II (Ang II) and upregulated nicotinamide adenine dinucleotide phosphate oxidase 4 (Nox4) protein expression in the kidneys induced by l-NAME were alleviated by CT flower extract or lisinopril co-treatment (p < 0.05). Furthermore, CT flower extract and lisinopril treatment reduced lipid peroxidation and elevated plasma and kidney malondialdehyde levels in l-NAME-induced hypertensive rats (p < 0.05). In conclusion, CT flower extract prevented l-NAME-induced renal injury and dysfunction in rats. The possible mechanism may be related to the suppression of Ang II-mediated Nox4 expression and the oxidative stress cascade in rats.
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