2059
Alterations in redox signaling proinflammatory kinases and transcription factors , steroid resistance , unfolded protein response , mucus hypersecretion , extracellular matrix remodeling , autophagy / apoptosis , epigenetic changes , cellular senescence / aging , endothelial dysfunction , autoimmunity , and skeletal muscle dysfunction are some of the pathological hallmarks of COPD .
 Chemical: steroid
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: steroid