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Iranian Journal of Medical Sciences، جلد ۴۲، شماره ۳، صفحات ۲۶۶-۰
عنوان فارسی
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عنوان انگلیسی Antihypertensive Effects of Hydroalcoholic Extract of Crataegus Azarolus Subspecies Aronia Fruit in Rats with Renovascular Hypertension: An Experimental Mechanistic Study
چکیده انگلیسی مقاله Background: Hawthorn species decreases blood pressure and relaxes precontracted vessels. This study aimed at examining the antihypertensive effect and related mechanisms of hydroalcoholic extract of Crataegus azarolus subspecies aronia fruit in rats with renovascular hypertension. Methods: Six groups of male Sprague-Dawley rats, each containing 6 to 8 rats, were studied. The groups comprised of one sham group and 5 renal artery-clipped groups. The sham group received vehicle (distilled water 0.5 ml/day) and the renal artery-clipped groups received vehicle or the extract at 5, 10, 20 or 30 mg/kg/day. Oral vehicle or extract was administered daily for 4 weeks following sham-operation or induction of hypertension. Systolic blood pressure and heart rate were measured weekly. Isolated aorta study was performed by last week and serum superoxide dismutase and glutathione reductase were measured. The findings were analyzed using one-way analysis of variance and Duncan’s multiple range tests at P≤0.05 using SigmaStat software. Results: The data obtained after 4 weeks of treatment showed that the renal artery-clipped group receiving vehicle had significantly higher systolic blood pressure (P=0.002) and phenylephrine maximal response (P=0.01); and lower acetylcholine maximal response (P=0.01), serum superoxide dismutase (P=0.006) and serum glutathione reductase (P=0.006) than those of the sham group. The renal artery-clipped group receiving extract had significantly lower systolic blood pressure (P=0.03) and phenylephrine maximal response (P=0.01); and significantly higher acetylcholine maximal response (P=0.01), serum superoxide dismutase (P=0.015), and serum glutathione reductase (P=0.015) than those of the renal artery-clipped group receiving vehicle. Conclusion: Our findings show that the hydroalcoholic extract of Crataegus azarolus subspecies aronia fruit has antihypertensive effects, which may be partly due to antioxidant and nitric oxide releasing effects.
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نویسندگان مقاله محمدرضا حیدری | mohammad reza haydari
cardiovascular pharmacology research lab, department of pharmacology, school of medicine, shiraz university of medical sciences, shiraz, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی شیراز (Shiraz university of medical sciences)

محمدرضا پنجه شاهین | mohammad reza panjeshahin
cardiovascular pharmacology research lab, department of pharmacology, school of medicine, shiraz university of medical sciences, shiraz, iran; and department of pharmacology, school of medicine, shiraz university of medical sciences, shiraz, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی شیراز (Shiraz university of medical sciences)

الهه mashghoolozekr | elaheh mashghoolozekr
cardiovascular pharmacology research lab, department of pharmacology, school of medicine, shiraz university of medical sciences, shiraz, iran; and department of pharmacology, school of medicine, shiraz university of medical sciences, shiraz, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی شیراز (Shiraz university of medical sciences)

علی اکبر نکوییان | ali akbar nekooeian


نشانی اینترنتی http://ijms.sums.ac.ir/index.php/IJMS/article/view/2873
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/147/article-147-433422.pdf
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زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Original Article(s)
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