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| 1 | Hypolipidemic,antioxidant and anti-atherosclerogenic effects of aqueous extract of Zanthoxylum heitzii stem bark in diet-induced hypercholesterolemic rats显示文摘Objective:To evaluate anti-dyslipidemic,antioxidant and anti-atherosclerogenic properties of this extract in diet-induced hypercholesterolemic rat.a model of metabolic syndrome-induced atherosclerosis and associated cardiovascular diseases.Methods:Normocholeslerolemic(NC) male rats were divided into six groups(n=10) and fed a high-cholesterol(HC) diet for 30 days(5 groups),or normal rat chow(normal control group).Rats given a HC diet also received distilled water(disease control),the potent hypocholcsterolcmic agent with antiatherosclerotic activity atorvastatin(2 mg/kg,positive control),or one of the three doses of Zanthoxylum heitzii stem bark aqueous extract tested(225,300 and 375 mg/kg) concomitantly for four months.Signs of general toxicity,body temperature and weight,and water and food intake were monitored in live animals.After sacrifice,lipid profiles and oxidative stress markers were assessed in the blood and liver,aorta,and feces,and histopathological analysis of aorta was performed.Results:Plant extract prevented the elevation of aortic total cholesterol and triglycerides,and hepatic low density lipoprotein,very low density lipoprotein,and total cholesterol.Lipid peroxidation(TBARS) was decreased and aortic atherosclerotic plaque formation prevented.Conclusions:These observations strongly suggest that stem bark aqueous extract of Zanthoxylum heitzii has anti-atherosclerogenic properties,at least partly mediated by antioxidant and hypolipidemic effects. | Fidele Ntchapda Kakesse Maguirgue Hamadjida Adjia Paul Faustin Seke Etet Théophile Dimo | 2015 | Asian Pacific Journal of Tropical Medicine2015，8，5： | 3 |
| 2 | Diuretic and antioxidant activities of the aqueous extract of leaves of Cassia occidentalis(Linn.) in rats显示文摘Objective: To assess the putative diuretic and antioxidant properties of Cassia occidentalis(C. occidentalis) leaves' aqueous extract. Methods: Adult rats were administered with C. occidentalis leaves aqueous extract acutely(24-h) and subchronically(7 d), at doses 80, 160, 240, 320, and 400 mg/kg(per os). Negative control group received only an equivalent volume of distilled water, while the two positive control groups received the diuretic drugs furosemide(20 mg/kg, i.p.) and hydrochlorothiazide(HCTZ, 20 mg/kg, i.p.). Urinary elimination of electrolytes in response to treatments was evaluated, together with changes in concentrations of creatinine, urea, aldosterone, glucose, and albumin in urine and plasma. Various urinary indicators of kidney function and plasmatic markers of oxidative stress were also assessed. Results: The acute administration of C. occidentalis increased the urinary excretion of 107.58% at the higher dose tested, compared to negative control. The reference drugs furosemide and HCTZ induced increases of 84.27 % and 48.05 %, respectively. Acutely, the extract induced Na+ and Cl- elimination, whereas subchronically an increase in K+ elimination was also observed. The extract also improved the kidney function indexes and oxidative stress markers. These effects were dose-dependent and comparable with positive control observations. Conclusions: Our i ndings strongly suggest that C. occidentalis aqueous extract has diuretic and antioxidant activities, and deserves further studies considering the potential for the treatment of hypertension. | Théophile Dimo Fidèle Ntchapda Joseph Barama David Romain Kemeta Azambou Paul Faustin Seke Etet | 2015 | Asian Pacific Journal of Tropical Medicine2015，8，9： | 2 |
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