الفهرس 
CHRONIC OBSTRUCTIVE PULMONARYOnly 14 pages are availabe for public view
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Abstract
The natural history of chronic obstructive pulmonary disease is characterized by frequent exacerbations. Majority of the exacerbations are infectious and bacteria responsible for 30-50% of these cases. The purpose of this study was to assess the effect of COPD and smoking on the serum ADA level, it was found that serum ADA level decreased in COPD patients and healthy smoking group.
This study was carried out on 100 subjects (patients and controls). The Patients carried out from The Abbasyia Chest Hospital. subjects divided into 50 cases (control group) which contained 25 healthy smoker group and 25 healthy nonsmoker group, and 50 cases diagnosed as having COPD according the criteria of the global initiative for chronic obstructive lung disease (GOLD 2016), which contained 25 COPD patients were in stable state, 25 COPD patients were in acute exacerbation. Acute exacerbation was defined by the presence of an increase in at least two of the following symptoms.
Keywords: Obstructive sleep apnea- Leukocyte differential count- Chemoradiotherapy- chronic obstructive pulmonary disease