https://ogma.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 Serum magnesium and calcium levels in relation to ischemic stroke: mendelian randomization study https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:48519 p = 1.3 x 10−4) for all ischemic stroke, 0.63 (95% CI 0.50–0.80; p = 1.6 x 10−4) for cardioembolic stroke, and 0.60 (95% CI 0.44–0.82; p = 0.001) for large artery stroke; there was no association with small vessel stroke (odds ratio 0.90, 95% CI 0.67–1.20; p = 0.46). Only the association with cardioembolic stroke was robust in sensitivity analyses. There was no association of genetically predicted serum calcium concentrations with all ischemic stroke (per 0.5 mg/dL [about 1 SD] increase in serum calcium: odds ratio 1.03, 95% CI 0.88–1.21) or with any subtype. Conclusions: This study found that genetically higher serum magnesium concentrations are associated with a reduced risk of cardioembolic stroke but found no significant association of genetically higher serum calcium concentrations with any ischemic stroke subtype.]]> Wed 22 Mar 2023 17:11:50 AEDT ]]> Multiancestry genome-wide association study of 520,000 subjects identifies 32 loci associated with stroke and stroke subtypes https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:47666 Tue 24 Jan 2023 15:47:40 AEDT ]]> Genomic and phenotypic insights from an atlas of genetic effects on DNA methylation https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:39718 270,000 independent mQTLs, of which 8.5% comprise long-range (trans) associations. Identified mQTL associations explain 15-17% of the additive genetic variance of DNAm. We show that the genetic architecture of DNAm levels is highly polygenic. Using shared genetic control between distal DNAm sites, we constructed networks, identifying 405 discrete genomic communities enriched for genomic annotations and complex traits. Shared genetic variants are associated with both DNAm levels and complex diseases, but only in a minority of cases do these associations reflect causal relationships from DNAm to trait or vice versa, indicating a more complex genotype-phenotype map than previously anticipated.]]> Tue 21 Mar 2023 17:20:57 AEDT ]]>