scholarly journals Effect of omeprazole on the hypotensive efficacy of amlodipine depending on the genetic characteristics of patients

2018 ◽  
pp. 124-129
Author(s):  
M. N. Dorofeeva ◽  
Zh. M. Sizova ◽  
E. V. Shikh ◽  
N. I. Lapidus ◽  
K. A. Ryzhikova ◽  
...  

Features of anti-hypertensive therapy amlodipiny at patients with the arterial hypertonia (AH) with comorbid pathology  – kislotozavisimy diseases (KZZ), accepting омепразол, depending on genetic features of the patient are studied and analysed. It is shown that a certain genetic polymorphism of an isoenzyme of P450 3A4 cytochrome can shift a metabolism of an omeprazol towards P450 3A4 cytochrome and promote more expressed oppression of activity of this enzyme. Depending on rate of a metabolism at the sick AG and KZZ receiving a combination of an amlodipin and an omeprazol various anti-hypertensive effect of an amlodipin can be observed. Reliable differences in dynamics of indicators of daily monitoring of the arterial blood pressure (ABP) at sick AG - slow metabolizator and sick AG – fast and intermediate metabolizator are received. Decrease of the activity of an isoenzyme of P450 3A4 cytochrome at patients - slow metabolizator leads to retardation of a metabolism of an amlodipin and, as a result, to rising of its concentration in a blood plasma that is clinically shown by more expressed anti-hypertensive effect.

2020 ◽  
Vol 20 (8) ◽  
pp. 1253-1261
Author(s):  
Mourad Akdad ◽  
Mohamed Eddouks

Aims: The present study was performed in order to analyze the antihypertensive activity of Micromeria graeca (L.) Benth. ex Rchb. Background: Micromeria graeca (L.) Benth. ex Rchb is an aromatic and medicinal plant belonging to the Lamiaceae family. This herb is used to treat various pathologies such as cardiovascular disorders. Meanwhile, its pharmacological effects on the cardiovascular system have not been studied. Objective: The present study aimed to evaluate the effect of aqueous extract of aerial parts of Micromeria graeca (AEMG) on the cardiovascular system in normotensive and hypertensive rats. Methods: In this study, the cardiovascular effect of AEMG was evaluated using in vivo and in vitro investigations. In order to assess the acute effect of AEMG on the cardiovascular system, anesthetized L-NAME-hypertensive and normotensive rats received AEMG (100 mg/kg) orally and arterial blood pressure parameters were monitored during six hours. In the sub-chronic study, rats were orally treated for one week, followed by blood pressure assessment during one week of treatment. Blood pressure was measured using a tail-cuff and a computer-assisted monitoring device. In the second experiment, isolated rat aortic ring pre-contracted with Epinephrine (EP) or KCl was used to assess the vasorelaxant effect of AEMG. Results: Oral administration of AEMG (100 mg/kg) provoked a decrease of arterial blood pressure parameters in hypertensive rats. In addition, AEMG induced a vasorelaxant effect in thoracic aortic rings pre-contracted with EP (10 μM) or KCl (80 mM). This effect was attenuated in the presence of propranolol and methylene blue. While in the presence of glibenclamide, L-NAME, nifedipine or Indomethacin, the vasorelaxant effect was not affected. Conclusion: This study showed that Micromeria graeca possesses a potent antihypertensive effect and relaxes the vascular smooth muscle through β-adrenergic and cGMP pathways.


1946 ◽  
Vol 146 (3) ◽  
pp. 410-421 ◽  
Author(s):  
J. P. Holt ◽  
W. J. Rashkind ◽  
R. Bernstein ◽  
J. C. Greisen

2010 ◽  
Vol 56 (3) ◽  
pp. 326-331 ◽  
Author(s):  
N.I. Oguanobi ◽  
B.J.C. Onwubere ◽  
O.G. Ibegbulam ◽  
S.O. Ike ◽  
B.C. Anisiuba ◽  
...  

1941 ◽  
Vol 74 (1) ◽  
pp. 29-40 ◽  
Author(s):  
Philip D. McMaster

Advantage has been taken of the relative transparency of the claw of the mouse to devise a method, here described, to measure the blood pressure in the animal's leg. Direct measurements of the systolic blood pressure from the carotid arteries of anesthetized mice have also been made. Simultaneous blood pressure readings by both these methods applied to the same animal showed close agreement. The systolic pressure ranged from 60 to 126 mm. Hg, according to the conditions.


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