INFLUENCE OF NEUTROPHILIC COMPONENT OF BRONCHIAL INFLAMMATION ON THE LEVEL OF DISEASE CONTROL AND LUNG FUNCTION IN PATIENTS WITH ASTHMA-Reference-Cited by-同舟云学术

INFLUENCE OF NEUTROPHILIC COMPONENT OF BRONCHIAL INFLAMMATION ON THE LEVEL OF DISEASE CONTROL AND LUNG FUNCTION IN PATIENTS WITH ASTHMA

Published:2016-09-15 Issue:61 Volume:1 Page:16-24
ISSN:1998-5029
Container-title:Bulletin physiology and pathology of respiration
language:en
Short-container-title:

Author:

Приходько ,Prikhodko Anna,Пирогов ,Pirogov Aleksey,Перельман ,Perelman Yuliy,Зиновьев ,Zinovev Sergey

Abstract

The cell pattern of bronchi inflammatory infiltrate has a significant impact on the course of the disease and may affect the achievement and maintenance of the asthma control. The aim of the study was to determine the influence of neutrophilic component of the bronchial inflammation on the asthma control, lung function and airway responsiveness. 114 patients with mild persistent asthma were assessed upon the level of the asthma control by Asthma Control Test (ACT); lung function (FEV1) by spirometry; airway responsiveness (∆FEV1) to 3-minute isocapnic hyperventilation with cold air (-20ºС) (IHCA) and 3-minute ultrasound inhalation with distilled water (IDW). The cell composition of the induced sputum (IS) was also studied. The patients were divided into groups with low contents of neutrophils in IS (39 people; 1st group) and with high contents of neutrophils (75 people, 2nd group). The contents of neutrophils in the 1st group was 10.9±0.53%, eosinophils – 19.4±2.1%; in the 2nd group – 29.9±1.6% (р=0.0001) and 20.4±1.4% (р=0.66), respectively. By ACT data the people of the 2nd group managed their disease worse than in 1st group (15.0±0.6 and 19.0±0.8 points, respectively; р=0.0001). They also had lower FEV1 (88.0±2.0 and 96.7±2.4%; р=0.009) and more intensive airway response to IHCA and DW (-13.7±1.7% and -11.2±1.9%, respectively) in comparison with the 1st group (-2.7±0.86%; р=0.0001 and -5.3±1.90%; р=0.055). The patients of the 2nd group had a close correlation between baseline neutrophils in IS and ∆FEV1 in response to IHCA (r=-0.22; р=0.045) as well as the content of myeloperoxidase in IS (r=0.31; р=0.0008). A level of myeloperoxidase in IS correlated with ∆FEV1 in response to IDW (r=0.29; р=0.030) in these patients. The increase of neutrophilic component of inflammation in asthma patients worsens the asthma control, lung function and enhances airway responsiveness to exogenous stimuli.

Publisher

Far Eastern Scientific Center Of Physiology and Pathology of Respiration

Subject

General Medicine

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