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The Relationship of Serum Angiotensin Converting Enzyme(ACE), Angiotensin II and Clinical Markers in the Idiopathic Interstitial Pneumonia  

Kyung, Sung-Young (Division of Pulmonary Medicine, Gachon Medical School Medical Center)
Hahn, Hye-Sook (Division of Pulmonary Medicine, Gachon Medical School Medical Center)
Song, Suk-Ho (Division of Pulmonary Medicine, Gachon Medical School Medical Center)
Hwang, Jun-Kyu (Division of Pulmonary Medicine, Gachon Medical School Medical Center)
Lim, Young-Hee (Division of Pulmonary Medicine, Gachon Medical School Medical Center)
An, Chang-Hyeok (Division of Pulmonary Medicine, Gachon Medical School Medical Center)
Park, Gye-Young (Division of Pulmonary Medicine, Gachon Medical School Medical Center)
Park, Jung-Woong (Division of Pulmonary Medicine, Gachon Medical School Medical Center)
Jeong, Seong-Hwan (Division of Pulmonary Medicine, Gachon Medical School Medical Center)
Ha, Seung-Yeon (Department of International Medicine, Pathology, Gachon Medical School Medical Center)
Lee, Jae-Woong (Department of International Medicine, Thoracic surgery, Gachon Medical School Medical Center)
Publication Information
Tuberculosis and Respiratory Diseases / v.52, no.5, 2002 , pp. 506-518 More about this Journal
Abstract
Background : There have been several studies showing that angiotensin II and the angiotensin converting enzyme (ACE) contribute to the activation of fibroblast including the pulmonary fibrosis, and apoptosis of the alveolar epithelium in idiopathic intersititial pneumonia. This study was performed to identify the relationship between the serum angiotensin II, ACE and the pulmonary function test (PFT), the dyspnea score, and the cell fraction of the bronchoalveolar lavage fluid(BALF). Materials and Methods : Twenty three patients with idiopathic interstitial pneumonia from March, 1999 to October, 2001 at Gachon medical school were enrolled in this study. They were divided into IPF(UIP) (16) and NSIP (7) groups. Twelve of the idiopathic interstitial pneumonia patients (UIP : 5, NSIP : 7) were diagnosed by an open lung biopsy, 11 of IPF patients were diagnosed by the American Thoracic Society (ATS) diagnostic criteria. The PFT values, dyspnea score, serum ACE and angiotensin II were measured, and a bronchoscopy was performed to obtain the BALF. Results : Of all the patients, 7 were in the normal range and 14 showed an increase in the serum level of angiotensin II. In terms of the serum ACE level, 14 patients had an increased level. The DLCO% of the angiotensin II in increased group was significantly lower than the not-increased group (p=0.021). Other factors did not correlate with the serum ACE or the angiotensin II increased group and not-increased group. Conclusion : These results suggest that an increased angiotensin II serum level may be associated with increase in the of alveolar capillary block in the progression of pulmonary fibrosis in idiopathic interstitial pneumonia.
Keywords
Idiopathic interstitial pneumonia; Angiotensin converting enzyme; Angiotensin II; Fibrosis;
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