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http://dx.doi.org/10.14374/HFS.2022.30.3.123

Effect of Oryeongsan on Spontaneously Hypertensive Rat decrease of Blood Pressure and Vasodilatory  

Jang, Youn Jae (Department of Phygiology, College of Korean Medicine, Wonkwnag University)
Kim, Hye Yoom (Department of Phygiology, College of Korean Medicine, Wonkwnag University)
Hong, Mi Hyeon (Department of Phygiology, College of Korean Medicine, Wonkwnag University)
Yoon, Jung Joo (Department of Phygiology, College of Korean Medicine, Wonkwnag University)
Lee, Ho Sub (Department of Phygiology, College of Korean Medicine, Wonkwnag University)
Kang, Dae Gill (Department of Phygiology, College of Korean Medicine, Wonkwnag University)
Publication Information
Herbal Formula Science / v.30, no.3, 2022 , pp. 123-135 More about this Journal
Abstract
Oryeongsan (ORS), a formula composed of five herbal medicines, has long been used to treat impairments of the regulation of body fluid homeostasis. The purpose of this study was to determine the antihypertensive and renal protective effects of ORS in rats with hypertension. Spontaneously hypertensive rats (SHR) were divided into two groups with similar mean baseline systolic blood pressure (SBP). Then, 1 mL/kg of vehicle (distilled water) or 1.5, 3 g/kg of ORS extract were administered orally once a day for 4 weeks. SBP and diastolic blood pressure (DBP) were measured at weeks 1, 2, 3 and 4. At the end of the experiment, blood was collected, and heart were removed for histology. By the 2 weeks after initiation of treatment, the ORS treated group had significantly lower SBP than SHR rats. The ORS treatment significantly improved blood pressure and echocardiogram parameters compared to hypertensive rats. Additionally, the left ventricular (LV) remodeling and LV dysfunction were significantly improved in ORS treated group hypertensive rats. Furthermore, an increase in fibrotic area has been observed in SHR rats compared with Wistar-Kyoto rats (WKY). Furthermore, administration of ORS significantly attenuated cardiac fibrosis in hypertensive rats. Therefore, these findings suggest that ORS has a protective effect on heart failure by alleviating hypertensive heart disease and cardiovascular dysfunction in SHR.
Keywords
Oryeongsan; Hypertension; Spontaneously hypertensive rat; Cardiovascular dysfunction;
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