TLR4 and bacterial urinary tract infection: In this group of TLR pathway polymorphisms, there were occasional SNPs with associations with UTI risk, but they were no polymorphisms with known function, of a large magnitude, of high statistical significance, or clustered within single genes (Table 3 and Table S2, see SNPs TLR1_T130C, TLR4_zA11547G, and TRIF_C1671T).