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We used lentiviral shRNA to knock down the expression of medium - chain acyl - CoA dehydrogenase ( MCAD ) in control and carnitine palmitoyltransferase 2 ( CPT2 ) - , carnitine / acylcarnitine translocase ( CACT ) - , and plasmalemmal carnitine transporter ( OCTN2 ) - deficient human fibroblasts .
 acyl - CoA, carnitine, carnitine, acylcarnitine, carnitine
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 acyl - CoA, carnitine, carnitine, acylcarnitine, carnitine