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
Ola Abdelhedi,
Hana Khemakhem,
Rim Nasri,
Mourad Jridi,
Leticia Mora,
Ikram Ben Amor,
Kamel Jamoussi,
Fidel Toldrá,
Jalel Gargouri,
Moncef Nasri
Affiliations
Ola Abdelhedi
Laboratory of Enzyme Engineering and Microbiology, National School of Engineering of Sfax (ENIS), University of Sfax, P.O. Box 1173, Sfax 3038, Tunisia
Hana Khemakhem
Laboratory of Biochemistry, CHU HediChaker, University of Sfax, Sfax 3000, Tunisia
Rim Nasri
Laboratory of Enzyme Engineering and Microbiology, National School of Engineering of Sfax (ENIS), University of Sfax, P.O. Box 1173, Sfax 3038, Tunisia
Mourad Jridi
Laboratory of Enzyme Engineering and Microbiology, National School of Engineering of Sfax (ENIS), University of Sfax, P.O. Box 1173, Sfax 3038, Tunisia
Leticia Mora
Instituto de Agroquímica y Tecnologíade Alimentos (CSIC), Avenue Agustín Escardino 7, Paterna, 46980 Valencia, Spain
Ikram Ben Amor
Centre Régional de Transfusion Sanguine de Sfax, Route El-Ain Km 0.5, Sfax 3003, Tunisia
Kamel Jamoussi
Laboratory of Biochemistry, CHU HediChaker, University of Sfax, Sfax 3000, Tunisia
Fidel Toldrá
Instituto de Agroquímica y Tecnologíade Alimentos (CSIC), Avenue Agustín Escardino 7, Paterna, 46980 Valencia, Spain
Jalel Gargouri
Centre Régional de Transfusion Sanguine de Sfax, Route El-Ain Km 0.5, Sfax 3003, Tunisia
Moncef Nasri
Laboratory of Enzyme Engineering and Microbiology, National School of Engineering of Sfax (ENIS), University of Sfax, P.O. Box 1173, Sfax 3038, Tunisia
In this study, the antihypertensive activity of Purafect®-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.
