rs11545078

This case-control and family-based study evaluated 64 SNPs in 34 genes for associations with spina bifida in 558 Irish case-families and 994 controls. Spina bifida was significantly associated with LEPR rs1805134 (GRR: 1.5, P = 0.0264) and COMT rs737865 (GRR: 1.4, P = 0.0206), with additional confirmations of previous findings in MTHFR 677C>T and other genes, suggesting roles for leptin signaling and methylation pathways in neural tube defect pathogenesis.

This pharmacogenetic study examined genetic variants in the folate metabolism and MTX transport pathways in rheumatoid arthritis patients receiving methotrexate monotherapy. Study 1 (n=124) identified rs17421511 and rs1476413 in MTHFR and rs1643650 in DHFR as significantly associated with MTX treatment response (p=0.024, p=0.0086, p=0.026 respectively), and rs16853826 and rs10197559 in ATIC as associated with toxicity (p=0.039). Study 2 (n=194) found rs10106 and rs10987742 in FPGS associated with response, and rs868755, rs10280623, rs1858923 in ABCB1 associated with toxicity, with rs10106 also associated with longer MTX monotherapy survival.

This pharmacogenetics study analyzed 28 SNPs in methotrexate (MTX) metabolism genes (SLC19A1/RFC1, ABCB1, FPGS, GGH) in two Spanish populations with rheumatoid arthritis (n=124 and n=194). Key findings: FPGS rs10987742 and rs10106 associated with MTX response (p=0.033, p=0.041); FPGS rs10106 also associated with MTX survival (p=0.005) and toxicity (p=0.021); ABCB1 rs868755, rs10280623, rs1858923 associated with toxicity (p=0.025, p=0.048, p=0.031). In the first study, MTHFR rs17421511 (p=0.024) and rs1476413 (p=0.0086) associated with response, DHFR rs1643650 (p=0.026) associated with response, ATIC rs16853826 associated with toxicity (p=0.039).