Open AccessProtective Effect of Nedocromil Against Insulin Induced Airway Hyper-Reactivity
Author(s) -
Mahjabeen Sharif,
Bushra Tayyaba Khan,
Ayesha Afzal,
Fatima Qasim Malik,
Mohammad Asim Anwar
Publication year - 2020
Publication title -
journal of saidu medical college
Language(s) - English
Resource type - Journals
ISSN - 1819-4583
DOI - 10.52206/jsmc.2020.10.2.315
Subject(s) - insulin , nedocromil , medicine , airway , contraction (grammar) , nedocromil sodium , guinea pig , endocrinology , pharmacology , anesthesia , lung , pathology , respiratory disease , alternative medicine , placebo
Background: Use of inhalable insulin is limited because it causes airway hyper-reactivity. So present study was designed to ameliorate inhalational insulin induced airway hyper-responsiveness.Objectives: The objective of the study was to evaluate the acute effects of insulin on airway reactivity and protective effects of nedocromil against insulin induced airway hyper-reactivity on isolated tracheal tissues of guinea pigs in vitro.Material and Methods: This experimental study was carried out in Pharmacology department of Army Medical College Rawalpindi from January 2012 to July 2012. We observed acute effect of insulin (10-7- 10-3 M) and insulin pretreated with nedocromil (10-5 M) on isolated tracheal strip of guinea pig (n=6) in vitro by constructing cumulative concentration response curves. The tracheal smooth muscle contractions were recorded with Transducer on Four Channel Oscillograph.Results: Insulin significantly increased the tracheal smooth muscle contraction. The mean ± SEM of maximum amplitudes of contraction with insulin and insulin pretreated with nedocromil were 35 ± 1.13 mm and 27.8 ± 1.27 mm respectively. So nedocromil significantly antagonized insulin elicited contractile effect. Conclusion: Nedocromil significantly inhibited the insulin mediated airway hyper-reactivity in guinea pigs. So we suggest that pretreatment of inhaled insulin with nedocromil may have clinical implication in amelioration of its potential respiratory adverse effects.