Alternatively, other studies found that ALPL, CYP17, IGF2, EGFR, IL1B, IL6, ITPKC, MTNR1A, OPN, ODC, osteocalcin, RGS14, SAT1, TNFA, TRPV5, and matrix Gla protein gene polymorphisms were not associated with kidney stone recurrence [9, 34, 38–43, 46, 47, 49, 50]. This evidence concerns the gene CYP17A1 and nephrolithiasis.