Gut microbiome profiling and colorectal cancer in African Americans and Caucasian Americans

Figure 5 Expression of secondary bile acids transforming enzyme 7-α-DH in the colonic effluent from African Americans and Caucasian Americans using RT-PCR. A: Distribution of different Clostridium cluster between African Americans (AA) and Caucasian Americans (CA); B: Clostridium XI expression was higher in AAs; C: Secondary bile acids transforming bacteria Clostridium sordelli was higher in AAs than CAs; D: Increased 7α-DH expression in AAs. Data represent mean ± SD of all samples from each group (^aP < 0.05, ^bP < 0.01).