Endotrophin levels in clinically-stable chronic obstructive pulmonary disease

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Ozgur Altun
Yucel Arman
Nur Karakutuk Yuztas
Selay Arslan
Ayca Zeynep Kutlu
Pinar Saner Demir
Murat Akarsu
Tufan Tukek


Aim: Chronic obstructive pulmonary disease (COPD) is characterized by chronic inflammation and permanent airflow limitations due to stenosis of the small airways. The role of the extracellular matrix (ECM) structure and its reshaping is gaining importance. Endotrophin is a division product formed during construction of type VI collagen. The aim of this study was to research the correlation between endotrophin and the stable COPD pathophysiology.
Materials and Methods: The study included 90 clinically-stable COPD patients and 38 participants without COPD. The demographic data, respiratory function tests and endotrophin levels of patients were recorded and statistically evaluated.
Results: Endotrophin levels were significantly high in COPD patients compared to healthy controls (p<0.001). Though there was a positive correlation between endotrophin and CRP (r=0.229, p=0.031), there was no correlation with FEV-1, FVC, mMRC dyspnea score, 6-minute walking test distance and GOLD degree.
Conclusion: Endotrophin was identified to be high in clinically stable COPD cases. This elevation appears to be associated with continuing inflammation in COPD. This correlation may guide prognosis studies for COPD and ensure the opportunity to develop new treatment strategies targeting endotrophin.


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Altun, O., Arman, Y., Yuztas, N. K., Arslan, S., Kutlu, A. Z., Demir, P. S., Akarsu, M., & Tukek, T. (2021). Endotrophin levels in clinically-stable chronic obstructive pulmonary disease. Annals of Medical Research, 28(12), 2145–2149. Retrieved from https://annalsmedres.org/index.php/aomr/article/view/3991
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