Abstract
Aims: The aim of the study was to experimentally investigate the antihypertensive effect of Ruta Montana.
Background: Ruta montana L. is traditionally used in Moroccan herbal medicine to treat hypertension. This study aimed to experimentally evaluate the hypotensive and vasoactive properties of this plant.
Objective: The objective of the study was to evaluate the effect of the aqueous extract of Ruta Montana on blood pressure parameters in LNAME-induced hypertensive rats and to determine the vasorelaxant activity of this aqueous extract.
Methods: The antihypertensive effect of the aqueous extract obtained from Ruta montana aerial parts (RMAPAE) (200 mg/kg) was evaluated in normal and anesthetized hypertensive rats. Blood pressure parameters (systolic blood pressure (SBP), mean blood pressure (MBP) and diastolic blood pressure (DBP)) and heart rate were measured using a tail-cuff and a computer-assisted monitoring device. The acute and chronic effect of RMAPAE was recorded for 6 hours for the acute experiment and for 7 days for the sub-chronic test. In the other set, the vasorelaxant effect of RMAPAE on the contractile response was observed in the isolated thoracic aorta.
Results: The results indicated that the RMAPAE extract significantly decreased SBP, MBP, DBP and heart rate in L-NAME-induced hypertensive rats. Furthermore, RMAPAE was demonstrated to induce a dose-dependent relaxation in the aorta precontracted with Epinephrine or KCl. More interestingly, this vasorelaxant activity of RMAPAE seems to be probably mediated through the prostaglandins pathway.
Conclusion: The present study illustrates the beneficial action of Ruta montana on hypertension and supports its use as an antihypertensive agent.
Keywords: Ruta montana, hypertension, vasorelaxant, prostaglandins, LNAME-hypertensive rats, isolated aortic ring.
Graphical Abstract
[http://dx.doi.org/10.1007/s11418-011-0590-2] [PMID: 21964566]
[http://dx.doi.org/10.3389/fphar.2015.00323] [PMID: 26834637]
[http://dx.doi.org/10.1016/S0031-9422(99)00486-0] [PMID: 10680183]
[http://dx.doi.org/10.1016/j.jep.2010.02.016] [PMID: 20226847]
[PMID: 26417353]
[http://dx.doi.org/10.1007/s10298-013-0751-9]
[http://dx.doi.org/10.1016/S0378-8741(01)00289-6] [PMID: 11535361]
[http://dx.doi.org/10.1016/S0378-8741(02)00164-2] [PMID: 12241983]
[http://dx.doi.org/10.1016/j.jep.2019.112039] [PMID: 31252093]
[http://dx.doi.org/10.1515/jcim-2019-0024] [PMID: 31348761]
[http://dx.doi.org/10.1080/10641963.2020.1714640] [PMID: 31965874]
[http://dx.doi.org/10.1016/j.phymed.2018.10.023] [PMID: 30668387]
[http://dx.doi.org/10.2174/1871525717666191007151413] [PMID: 31589128]
[http://dx.doi.org/10.1016/j.joim.2017.11.001] [PMID: 29397093]
[http://dx.doi.org/10.1016/j.jep.2017.05.036] [PMID: 28578165]
[http://dx.doi.org/10.1097/00005344-199804000-00022] [PMID: 9554813]
[http://dx.doi.org/10.1016/S1734-1140(12)70846-0] [PMID: 22814004]
[http://dx.doi.org/10.1001/jama.1997.03550030052033] [PMID: 9218667]
[http://dx.doi.org/10.1001/jama.282.6.539] [PMID: 10450715]
[http://dx.doi.org/10.1016/j.hermed.2016.06.001]
[PMID: 10805411]
[http://dx.doi.org/10.1016/j.atherosclerosis.2008.06.008] [PMID: 18656197]
[http://dx.doi.org/10.1016/B978-0-12-521980-8.50024-9]
[http://dx.doi.org/10.1038/ki.1987.164] [PMID: 3306093]
[PMID: 6439459]
[http://dx.doi.org/10.1161/01.HYP.35.5.1129] [PMID: 10818076]
[http://dx.doi.org/10.1161/HYPERTENSIONAHA.109.144840] [PMID: 20065149]
[http://dx.doi.org/10.1172/JCI6579] [PMID: 10359563]
[http://dx.doi.org/10.1161/HYPERTENSIONAHA.108.111229] [PMID: 18824665]
[PMID: 5717194]
[http://dx.doi.org/10.1021/np50067a034]
[http://dx.doi.org/10.1016/j.foodchem.2005.04.028]
[http://dx.doi.org/10.3891/acta.chem.scand.23-0962] [PMID: 5806314]
[http://dx.doi.org/10.1097/00005344-200002000-00023] [PMID: 10672869]
[http://dx.doi.org/10.1016/j.niox.2009.05.006] [PMID: 19497380]