HP and colorectal carcinoma: Nevertheless, the abundance of Prevotella (R2 = 0.33, β = 0.978, p = 0.003) was positively associated with serum zonulin level in OB-CRC patients, while abundance of Desulfovibrio (R2 = 0.33, β = 0.787, p = 0.014) was positively associated to serum zonulin levels in L-CRC patients.