Clarification from the authors Lucy Abel, BioMed Central 26 February 2014 The two articles, published by my group, include the data of plasma laboratory tests, which were shown in Fig.3 (pubished above) and Table 2 (published in Redox Biology: Cui Y, Wang Q, Li X, Zhang X. Experimental nonalcoholic fatty liver disease in mice leads to cytochrome p450 2a5 upregulation through nuclear factor erythroid 2-like 2 translocation. Redox Biol. 2013 Aug 24;1(1):433-40.) respectively. The two data were similar, but they were from the different samples of mice. Competing interests I am an employee of BioMed Central. This comment was drafted by the authors and approved by the Editor-in-Chief.