Titanium Dioxide Aggravated Allergic Asthma Response Via Extracellular Traps Formation

2018 ◽  
Author(s):  
Zhengkai Wei ◽  
Jingjing Wang ◽  
Xiao Liu ◽  
Xu Zhang ◽  
Chaoqun Wang ◽  
...  
Inflammation ◽  
2021 ◽  
Author(s):  
Fei Chen ◽  
Min Yu ◽  
Yonghong Zhong ◽  
Lina Wang ◽  
Huaqiong Huang

Abstract Asthma is a common chronic respiratory disease that affects millions of people worldwide. The incidence of asthma has continued to increase every year. Bronchial asthma involves a variety of cells, including airway inflammatory cells, structural cells, and neutrophils, which have gained more attention because they secrete substances that play an important role in the occurrence and development of asthma. Neutrophil extracellular traps (NETs) are mesh-like structures composed of DNA, histones, and non-histone molecules that can be secreted from neutrophils. NETs can enrich anti-bacterial substances and limit pathogen migration, thus having a protective effect in case of inflammation. However, despite of their anti-inflammatory properties, NETs have been shown to trigger allergic asthma and worsen asthma progression. Here, we provide a systematic review of the roles of NETs in asthma.


2019 ◽  
Vol 20 (11) ◽  
pp. 1444-1455 ◽  
Author(s):  
Coraline Radermecker ◽  
Catherine Sabatel ◽  
Céline Vanwinge ◽  
Cecilia Ruscitti ◽  
Pauline Maréchal ◽  
...  

Author(s):  
Kate W. Sjoerdsma ◽  
W. James Metzger

Eosinophils are important to the pathogenesis of allergic asthma, and are increased in bronchoalveolar lavage within four hours after bronchoprovocation of allergic asthmatic patients, and remain significantly increased up to 24 hours later. While the components of human eosinophil granules have been recently isolated and purified, the mechanisms of degranulation have yet to be elucidated.We obtained blood from two volunteers who had a history of allergic rhinitis and asthma and a positive skin test (5x5mm wheal) to Alternaria and Ragweed. Eosinophils were obtained using a modification of the method described by Roberts and Gallin.


2009 ◽  
Vol 00 (00) ◽  
pp. 090915102728058-8
Author(s):  
Yoshiteru Kato ◽  
Yasuhiko Nakashima ◽  
Naoki Shino ◽  
Koichi Sasaki ◽  
Akihiro Hosokawa ◽  
...  

2001 ◽  
Vol 58 (5) ◽  
pp. 315-320
Author(s):  
C. Bucher ◽  
E. W. J. Russi

Asthma bronchiale ist eine chronische entzündliche Erkrankung der Atemwege, die gehäuft bei Atopikern auftritt. Die Therapie des allergischen Asthma bronchiale stützt sich auf drei Pfeiler: Das Vermeiden einer Allergenexposition, eine medikamentöse Therapie sowie in ausgewählten Fällen eine spezifische Immuntherapie (SIT). Ein völliges Meiden des Allergenkontaktes ist in der Regel nicht zu erreichen, weshalb die meisten Asthmatiker eine medikamentöse Behandlung benötigen. Dafür stehen moderne und wirksame Medikamente zur Verfügung. Die SIT hat sich vor allem bei der Pollenallergie bewährt. Wegen des in der Regel chronischen und wechselhaften Verlaufs sowie mitunter lebensbedrohlichen Situationen sollte der Patient über die Natur der Erkrankung, die Therapie, notwendige Kontrollen, sowie Maßnahmen bei einer plötzlichen Verschlechterung sorgfältig instruiert werden. Allgemein gilt für die Therapie des Asthma bronchiale, dass die Compliance des Patienten für den Therapieerfolg entscheidend ist.


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