CYP1A1 and mastitis: Considering the growing body of evidence showing that CYP1A1 is involved in inflammation-related diseases and our preliminary finding from a high-throughput sequencing analysis that CYP1A1 expression is suppressed in LPS-treated epithelial cells, we hypothesized that CYP1A1 also participates in the biological process of bovine mammary epithelial cells during bovine mastitis.