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Heath
Alternative Medicine
Combined antihypertensive effect of unripe Rubus coreanus Miq. and Dendropanax morbiferus.
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[QUOTE="greenmedinfo, post: 3950"] PMID: BMC Complement Med Ther. 2021 Oct 28 ;21(1):271. Epub 2021 Oct 28. PMID: 34711215 Abstract Title: Combined antihypertensive effect of unripe Rubus coreanus Miq. and Dendropanax morbiferus H. Lév. Extracts in 1 kidney-1 clip hypertensive rats and spontaneously hypertensive rats. Abstract: BACKGROUND: We previously showed that enzymatically hydrolyzed Dendropanax morbiferus H. Lév. leaf (Hy-DP) and unripe Rubus coreanus Miq. (5-uRCK) extracts exhibit potent vasodilator effects on isolated aortic rings from rats partly through endothelium-dependent and endothelium-independent mechanisms. These two extracts have different mechanisms of action; however, their combined effecton antihypertensive activity has not been explored.METHODS: The present study aims to investigate the effect of a chronic optimized mixture (HDR-2, composed of Hy-DP and 5-uRCK in a 2:1 mass ratio) on vascular tension and blood pressure in two different hypertensive rat models.RESULTS: The results showed that HDR-2 concentration-dependently relaxed endothelium-intact and endothelium-denuded aortic rings precontracted with phenylephrine. Antihypertensive effects were assessed in vivo on a 1 kidney-1 clip (1 K-1C) rat model of hypertension and spontaneously hypertensive rats (SHRs). Acute HDR-2 treatment significantly decreased systolic blood pressure (SBP) 3 h posttreatment in both models. Chronic HDR-2 administration also significantly decreased SBP in the hypertensive rat models. Moreover, HDR-2increased eNOS protein expression and phosphorylation levels in the aorta.CONCLUSION: Chronic HDR-2 administration may effectively improve vascular function by decreasing plasma angiotensin-converting enzyme (ACE) activity and AngII levels. HDR-2 significantly improved acetylcholine (ACh)-induced aortic endothelium-dependent relaxation and affected sodium nitroprusside (SNP)-induced endothelium-independent relaxation in SHRs. [URL='https://www.greenmedinfo.com/article/combined-antihypertensive-effect-unripe-rubus-coreanus-miq-and-dendropanax-mor']read more[/URL] [/QUOTE]
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Heath
Alternative Medicine
Combined antihypertensive effect of unripe Rubus coreanus Miq. and Dendropanax morbiferus.
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