rs3918227

This systematic review analyzed genetic associations with gastroschisis from 1980-2017, identifying 14 SNPs from 10 genes associated with crude risk and 30 SNPs from 14 genes with stratified risk. Four SNPs showed significant associations: rs4961 (ADD1, p=0.023), rs5443 (GNB3, p=0.002), rs1042713 (ADRB2, p=0.007), and rs1042714 (ADRB2, p=0.006). The findings suggest genetic susceptibility in gastroschisis is not restricted to gene-environment interactions, with blood pressure regulation genes playing a significant role in vascular disruption pathogenesis.

Genetic association study of nitric oxide synthase genes (NOS1, NOS2, NOS3) in neural tube defects (NTDs) in 3109 Caucasian samples from 745 families. The most significant association was rs4795067 (NOS2, AG genotype) with cranial NTDs (genoPDT p=0.0014), and a significant interaction between rs9658490 (NOS1, G allele) and MTHFR C677T polymorphism with anencephaly/acrania (p=0.0014). Results implicate all three NOS genes in NTD risk both independently and through interactions with MTHFR.

This family-based case-control study examined 50 SNPs across three nitric oxide synthase genes (NOS1, NOS2A, NOS3) in 1,065 Parkinson disease cases and 1,180 controls from 695 families. Significant associations with PD were found for 8 NOS1 SNPs (rs3782218, rs11068447, rs7295972, rs2293052, rs12829185, rs1047735, rs3741475, rs2682826; p=0.00083-0.046) and 7 NOS2A SNPs (rs2072324, rs944725, rs12944039, rs2248814, rs2297516, rs1060826, rs2255929; p=0.0000040-0.047) in early-onset sporadic PD families. Gene-environment interactions were detected between NOS1 SNPs (rs12829185, rs1047735, rs2682826) and pesticide exposure (p=0.012-0.034) and between NOS2A SNPs (rs2248814, rs1060826) and cigarette smoking (p=0.013-0.021).