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Assessment of Cholesterol, Glycemia Control and Short- and Long-Term Antihypertensive Effects of Smooth Hound Viscera Peptides in High-Salt and Fructose Diet-Fed Wistar Rats

AuthorsAbdelhedi, Ola; Khemakhem, Hana; Nasri, Rim; Jridi, Mourad; Mora, Leticia CSIC ORCID; Ben Amor, Ikram; Jamoussi, Kamel; Toldrá, Fidel; Gargouri, Jalel; Nasri, Moncef
KeywordsSmooth hound peptide
Anticoagulant activity
Lipase inhibitory activity
High salt and fructose diet
Issue Date27-Mar-2019
PublisherMultidisciplinary Digital Publishing Institute
CitationMarine Drugs 17(4): 194 (2019)
AbstractIn this study, the antihypertensive activity of Purafect<sup>®</sup>-smooth hound viscera protein hydrolysate (VPH) and its peptide fraction with molecular weight (MW) below 1 kDa (VPH-I) was investigated. In addition, the lipase inhibitory activity, as well the anticoagulant potential, in vitro, were assessed. The antihypertensive effects of VPH and VPH-I were studied during 24 h (short-term effect) and 30 days (long-term effect) using high-salt (18% NaCl) and -fructose (10%) diet (HSFD)-induced hypertension. Data showed that, 4 h post-administration of VPH and VPH-I (200 mg/kg BW), the systolic blood pressure of rats was reduced by about 6 and 9 mmHg, respectively. These effects were similar to that obtained with Captopril (~9 mmHg at t = 4 h). On the other hand, exposing the rats to daily to HSFD, coupled to the administration of viscera peptides, was found to attenuate hypertension. In addition, the proteins’ treatments were able to correct lipid and glycemic disorders, by reducing the total cholesterol and triglyceride contents and resorting to the plasma glucose level, compared to the HSFD group. Overall, the present findings demonstrated the preventive effect of VPH-peptides from hypertension complications, as a result of their biological properties.
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