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Colon cancer (CRC) is a heterogeneous disorder, arising from precursors-adenoma and serrated polyp. Previous studies have demonstrated the relationship between the human gut microbiota and CRC; however, its correlation to the different early precursors of CRC is not properly understood. Here, we studied the relationship between targeted gut bacteria and different colorectal polyp types, location, size and grade of dysplasia.

In the present case-control descriptive study, selected fecal bacteria were assessed in 118 patients, referred for standard screening colonoscopy, including 31 normal controls, 21 hyperplastic polyp (HP), 16 sessile serrated polyp (SSA), 29 tubular adenoma (TA) and 21 villous/tubuvillous polyp (VP/TVP) cases, between 2015 and 2017, by absolute quantitative real time PCR technique (q PCR) in different ethnicity of Iranian population. The panel of …