alexa Adrenergic Agonist and Antagonist Action in Airways of Patients with Bronchial Asthma
ISSN: 2161-105X

Journal of Pulmonary & Respiratory Medicine
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Research Article

Adrenergic Agonist and Antagonist Action in Airways of Patients with Bronchial Asthma

Hilmi Islami1*, Shaip Krasniqi2, Bedri Abdullahu3 and Ibrahim Ibrahimi4

1Department of Pharmacology, Faculty of Medicine, University of Prishtina, Clinical Centre N.N. 10000, Prishtina, Kosova

2Department of Pharmacology, Faculty of Medicine, University of Prishtina, Clinical Centre N.N. 10000, Prishtina, Kosova

3Department of Pharmacy, Faculty of Medicine, University of Prishtina, Clinical Centre N.N. 10000, Prishtina, Kosova

4Department of Pharmacology, Faculty of Medicine, University of Tetove, Ilindenska N.N. Tetove, Macedonia

*Corresponding Author:
Hilmi Islami, MD, PhD
Institute of Clinical Pharmacology and Toxicology
Faculty of Medicine, Prishtina University
“Mother Theresa “str, Rrethi i spitaleve pn.
10000 Prishtina, Republic of Kosova
Tel: 00377 45 437 415
Fax: 00 381 38 551 001
E-mail: [email protected]

Received date: June 17, 2011; Accepted date: November 08, 2011; Published date: November 10, 2011

Citation: Islami H, Krasniqi S, Abdullahu B, Ibrahimi I (2011) Adrenergic Agonist and Antagonist Action in Airways of Patients with Bronchial Asthma. J Pulmonar Respirat Med 1:104. doi: 10.4172/2161-105X.1000104

Copyright: © 2011 Islami H, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

In this study, the effect of dopamine as agonist dopaminergic receptor and alpha and beta adrenergic receptor was studied both in vivo. The effect of tolazoline as an antagonist of alpha-2 adrenergic receptor was also studied in patients with bronchial asthma and persons with increased bronchial reactibility. Parameters of the lung function are determined by body plethysmography. Raw and ITGV were registered and SRaw was calculated as well. Aerosolization is done with standard aerosolizing machines – Asema. Results gained in vivo shows that stimulation of alpha adrenergic receptor with dopamine (4 μg and 300 μg) causes significant contraction (p > 0.1) of the smooth bronchial musculature. Whereas, blockage of alpha-2 adrenergic receptor with tolazoline (20 mg by inhalator ways) does not change the bronchimotor tonus significantly (p>0.1) when compared to the stimulation of beta-2 adrenergic receptor with hexoprenaline (2 inh. x 0.2 mg) and blocker of cholinergic receptor - ipratropium (2 inh. x 1 mg). Reaction of the smooth musculature to dopamine suggests that this substance may cause constriction through alpha adrenergic receptors. Reaction may also be intermediated in indirect ways through dopaminergic receptor of the cholinergic transmission, with intracellular inhibition of the creation of cAMP.

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