14561
An examination of the patients ' fibroblast cultures revealed that extremely low mitochondrial membrane potentials ( mt Delta Psi about 50 % of the control value ) dominated other unspecific mitochondrial changes detected ( respiratory chain dysfunction , abnormal ROS production and depressed antioxidant defense ) .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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