rs585800

A prospective study of 91 primary central nervous system lymphoma (PCNSL) patients examined genetic polymorphisms in DNA repair, one-carbon metabolism, and metabolism genes as prognostic markers. ABCB1 rs1045642 was identified as an independent prognostic factor, with the CC genotype significantly associated with shorter progression-free survival (PFS: 16 months CC vs. 27 months TT/CT, HR=1.9, P=0.036) and higher risk of disease progression compared to T allele carriers.

Case-control study of 501 young stroke patients and 1,211 controls examining 58 polymorphisms in 17 genes involved in methionine metabolism. Multiple logistic regression identified four independent risk factors for early-onset ischaemic stroke: rs10037045 BHMT (OR 1.38, p=0.033), rs682985 BHMT2 (OR 1.46, p=0.017), rs1051319 CBS (OR 3.75, p<0.0001), and rs202680 FOLH1 (OR 3.00, p<0.0001). Haplotype analyses identified significant associations with BHMT, CBS, FOLH1, MTR, PON2, TCN2 and TYMS haplotypes and stroke risk.

This family-based association study examined 14 folate pathway genes using 89 SNPs in 445 NSCLP families (317 non-Hispanic White, 128 Hispanic) to identify genetic variants contributing to nonsyndromic cleft lip and palate. Evidence for association was found with SNPs in NOS3 and TYMS in the non-Hispanic White group (rs2373929/NOS3, rs502396/TYMS, and others), and with MTR, BHMT2, MTHFS, and SLC19A1 in the Hispanic group (rs1422086/BHMT2, rs2115540/MTHFS significant after Bonferroni correction). Multiple gene-gene interactions were detected, with CBS and MTHFD1 showing the most extensive interactions. Significant interactions were also found between several SNPs and maternal smoking and one SNP (rs651646/FOLR2) with offspring sex.

A pathway-wide association study in 425 case-parent triads examined 109 SNPs in 29 folate/one-carbon metabolism genes and 68 SNPs in 16 vitamin A metabolism genes for associations with cleft lip/palate (CL/P) and cleft palate only (CPO). Despite strong epidemiologic evidence that folic acid and vitamin A reduce cleft risk, no convincing genetic associations were found; the strongest association was FOLH1 with CPO (p=0.0008), but findings were fewer than expected by chance and inconsistent with protective effects of vitamin supplementation, suggesting vitamin metabolism gene polymorphisms do not play an etiologic role in oral facial clefts.