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Linalyl acetate prevents hypertension-related ischemic injury

Ischemic stroke remains an important cause of disability and mortality. Hypertension is a critical risk factor for the development of ischemic stroke. Control of risk factors, including hypertension, is therefore important for the prevention of ischemic stroke. Linalyl acetate (LA) has been reported...

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Published in:PloS one 2018-05, Vol.13 (5), p.e0198082
Main Authors: Hsieh, Yu Shan, Kwon, Soonho, Lee, Hui Su, Seol, Geun Hee
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Kwon, Soonho
Lee, Hui Su
Seol, Geun Hee
description Ischemic stroke remains an important cause of disability and mortality. Hypertension is a critical risk factor for the development of ischemic stroke. Control of risk factors, including hypertension, is therefore important for the prevention of ischemic stroke. Linalyl acetate (LA) has been reported to have therapeutic effects in ischemic stroke by modulating intracellular Ca2+ concentration and having anti-oxidative properties. The preventive efficacy of LA has not yet been determined. This study therefore investigated the preventive efficacy of LA in rat aortas exposed to hypertension related-ischemic injury, and the mechanism of action of LA.Hypertension was induced in vivo following ischemic injury to the aorta induced by oxygen-glucose deprivation and reoxygenation in vitro. Effects of LA were assayed by western blotting, by determining concentrations of lactate dehydrogenase (LDH) and reactive oxygen species (ROS) and by vascular contractility assays. LA significantly reduced systolic blood pressure in vivo. In vitro, LA suppressed ischemic injury-induced expression of the nicotinamide adenine dinucleotide phosphate (NADPH) oxidase subunit p47phox, as well as ROS production, LDH release, and ROS-induced endothelial nitric oxide synthase suppression. These findings indicate that LA has anti-hypertensive properties that can prevent hypertension-related ischemic injury and can prevent NADPH oxidase-induced production of ROS.
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Hypertension is a critical risk factor for the development of ischemic stroke. Control of risk factors, including hypertension, is therefore important for the prevention of ischemic stroke. Linalyl acetate (LA) has been reported to have therapeutic effects in ischemic stroke by modulating intracellular Ca2+ concentration and having anti-oxidative properties. The preventive efficacy of LA has not yet been determined. This study therefore investigated the preventive efficacy of LA in rat aortas exposed to hypertension related-ischemic injury, and the mechanism of action of LA.Hypertension was induced in vivo following ischemic injury to the aorta induced by oxygen-glucose deprivation and reoxygenation in vitro. Effects of LA were assayed by western blotting, by determining concentrations of lactate dehydrogenase (LDH) and reactive oxygen species (ROS) and by vascular contractility assays. LA significantly reduced systolic blood pressure in vivo. 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These findings indicate that LA has anti-hypertensive properties that can prevent hypertension-related ischemic injury and can prevent NADPH oxidase-induced production of ROS.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0198082</identifier><identifier>PMID: 29799836</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Acetic acid ; Animals ; Antihypertensive agents ; Antihypertensives ; Aorta ; Apoptosis ; Biology and Life Sciences ; Blood pressure ; Blood Pressure - drug effects ; Brain Ischemia - complications ; Brain Ischemia - metabolism ; Brain Ischemia - physiopathology ; Brain Ischemia - prevention &amp; control ; Calcium (intracellular) ; Calcium ions ; Complications and side effects ; Contractility ; Deprivation ; Disease prevention ; Dosage and administration ; Drug therapy ; Gene Expression Regulation, Enzymologic - drug effects ; Glucose ; Health aspects ; Health risks ; Hypertension ; Hypertension - complications ; Injury prevention ; Ischemia ; L-Lactate dehydrogenase ; Laboratory animals ; Lactate dehydrogenase ; Lactic acid ; Linalyl acetate ; Male ; Medicine and Health Sciences ; Monoterpenes - pharmacology ; Mortality ; NAD(P)H oxidase ; NADPH Oxidases - metabolism ; NADPH-diaphorase ; Neurological disorders ; Nicotinamide ; Nicotinamide adenine dinucleotide ; Nicotine ; Nitric oxide ; Nitric Oxide Synthase Type III - metabolism ; Nitric-oxide synthase ; Nursing schools ; Oils &amp; fats ; Oxidase ; Oxidative stress ; Oxygen ; Oxygen - metabolism ; Physical Sciences ; Physiology ; Polyethylene glycol ; Prevention ; Rats ; Rats, Sprague-Dawley ; Reactive oxygen species ; Reactive Oxygen Species - metabolism ; Research and Analysis Methods ; Risk analysis ; Risk factors ; Risk management ; Rodents ; Stroke ; Systematic review ; Vasodilator Agents - pharmacology ; Western blotting</subject><ispartof>PloS one, 2018-05, Vol.13 (5), p.e0198082</ispartof><rights>COPYRIGHT 2018 Public Library of Science</rights><rights>2018 Hsieh et al. 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Hypertension is a critical risk factor for the development of ischemic stroke. Control of risk factors, including hypertension, is therefore important for the prevention of ischemic stroke. Linalyl acetate (LA) has been reported to have therapeutic effects in ischemic stroke by modulating intracellular Ca2+ concentration and having anti-oxidative properties. The preventive efficacy of LA has not yet been determined. This study therefore investigated the preventive efficacy of LA in rat aortas exposed to hypertension related-ischemic injury, and the mechanism of action of LA.Hypertension was induced in vivo following ischemic injury to the aorta induced by oxygen-glucose deprivation and reoxygenation in vitro. Effects of LA were assayed by western blotting, by determining concentrations of lactate dehydrogenase (LDH) and reactive oxygen species (ROS) and by vascular contractility assays. LA significantly reduced systolic blood pressure in vivo. 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Hypertension is a critical risk factor for the development of ischemic stroke. Control of risk factors, including hypertension, is therefore important for the prevention of ischemic stroke. Linalyl acetate (LA) has been reported to have therapeutic effects in ischemic stroke by modulating intracellular Ca2+ concentration and having anti-oxidative properties. The preventive efficacy of LA has not yet been determined. This study therefore investigated the preventive efficacy of LA in rat aortas exposed to hypertension related-ischemic injury, and the mechanism of action of LA.Hypertension was induced in vivo following ischemic injury to the aorta induced by oxygen-glucose deprivation and reoxygenation in vitro. Effects of LA were assayed by western blotting, by determining concentrations of lactate dehydrogenase (LDH) and reactive oxygen species (ROS) and by vascular contractility assays. LA significantly reduced systolic blood pressure in vivo. In vitro, LA suppressed ischemic injury-induced expression of the nicotinamide adenine dinucleotide phosphate (NADPH) oxidase subunit p47phox, as well as ROS production, LDH release, and ROS-induced endothelial nitric oxide synthase suppression. These findings indicate that LA has anti-hypertensive properties that can prevent hypertension-related ischemic injury and can prevent NADPH oxidase-induced production of ROS.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>29799836</pmid><doi>10.1371/journal.pone.0198082</doi><tpages>e0198082</tpages><orcidid>https://orcid.org/0000-0002-2986-9688</orcidid><oa>free_for_read</oa></addata></record>
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subjects Acetic acid
Animals
Antihypertensive agents
Antihypertensives
Aorta
Apoptosis
Biology and Life Sciences
Blood pressure
Blood Pressure - drug effects
Brain Ischemia - complications
Brain Ischemia - metabolism
Brain Ischemia - physiopathology
Brain Ischemia - prevention & control
Calcium (intracellular)
Calcium ions
Complications and side effects
Contractility
Deprivation
Disease prevention
Dosage and administration
Drug therapy
Gene Expression Regulation, Enzymologic - drug effects
Glucose
Health aspects
Health risks
Hypertension
Hypertension - complications
Injury prevention
Ischemia
L-Lactate dehydrogenase
Laboratory animals
Lactate dehydrogenase
Lactic acid
Linalyl acetate
Male
Medicine and Health Sciences
Monoterpenes - pharmacology
Mortality
NAD(P)H oxidase
NADPH Oxidases - metabolism
NADPH-diaphorase
Neurological disorders
Nicotinamide
Nicotinamide adenine dinucleotide
Nicotine
Nitric oxide
Nitric Oxide Synthase Type III - metabolism
Nitric-oxide synthase
Nursing schools
Oils & fats
Oxidase
Oxidative stress
Oxygen
Oxygen - metabolism
Physical Sciences
Physiology
Polyethylene glycol
Prevention
Rats
Rats, Sprague-Dawley
Reactive oxygen species
Reactive Oxygen Species - metabolism
Research and Analysis Methods
Risk analysis
Risk factors
Risk management
Rodents
Stroke
Systematic review
Vasodilator Agents - pharmacology
Western blotting
title Linalyl acetate prevents hypertension-related ischemic injury
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