https://ogma.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 Genetic variation at 16q24.2 is associated with small vessel stroke https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:33544 -9). The lead single-nucleotide polymorphism (rs12445022) was also associated with cerebral white matter hyperintensities (OR [95% CI] = 1.10 [1.05-1.16] ; p = 5.3 × 10-5 ; N = 3,670), but not intracerebral hemorrhage (OR [95% CI] = 0.97 [0.84-1.12] ; p = 0.71; 1,545 cases, 1,481 controls). rs12445022 is associated with mRNA expression of ZCCHC14 in arterial tissues (p = 9.4 × 10-7) and DNA methylation at probe cg16596957 in whole blood (p = 5.3 × 10-6). Interpretation: 16q24.2 is associated with SVS. Associations of the locus with expression of ZCCHC14 and DNA methylation suggest the locus acts through changes to regulatory elements.]]> Wed 15 Dec 2021 16:10:00 AEDT ]]> Genetic architecture of white matter hyperintensities differs in hypertensive and nonhypertensive ischemic stroke https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:27769 SNP]) and tested the hypothesis that WMH heritability differs between hypertensive and nonhypertensive individuals. Methods: WMHV was measured on MRI in the stroke-free cerebral hemisphere of 2336 ischemic stroke cases with GWAS data. After adjustment for age and intracranial volume, we determined which cardiovascular risk factors were independent predictors of WMHV. Using the genome-wide complex trait analysis tool to estimate HSNP for WMHV overall and within subgroups stratified by risk factors found to be significant in multivariate analyses. Results: A significant proportion of the variance of WMHV was attributable to common SNPs after adjustment for significant risk factors (HSNP=0.23; P=0.0026). HSNP estimates were higher among hypertensive individuals (HSNP=0.45; P=7.99x10-5); this increase was greater than expected by chance (P=0.012). In contrast, estimates were lower, and nonsignificant, in nonhypertensive individuals (HSNP=0.13; P=0.13). Conclusions: A quarter of variance is attributable to common SNPs, but this estimate was greater in hypertensive individuals. These findings suggest that the genetic architecture of WMH in ischemic stroke differs between hypertensives and nonhypertensives. Future WMHV GWAS studies may gain power by accounting for this interaction.]]> Tue 21 Jul 2020 09:44:12 AEST ]]> Common NOTCH3 variants and cerebral small-vessel disease https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:28335 0.01 were included in the analysis. A significance level of P<0.0015 was used, adjusted for the effective number of independent SNPs in the region using the Galwey method. Results: We found no association of any common variants in NOTCH3 (including rs10404382, rs1043994, rs10423702, and rs1043997) with lacunar stroke or white matter hyperintensity volume. We repeated our analysis stratified for hypertension but again found no association. Conclusions: Our study does not support a role for common NOTCH3 variation in the risk of sporadic small-vessel disease.]]> Tue 21 Jul 2020 09:43:47 AEST ]]> Genetically determined risk of depression and functional outcome after Ischemic Stroke: mendelian randomization study https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:42205 P=0.06). There was no evidence of heterogeneity between MR estimates produced by different instruments (Q P=0.26). Comparable MR estimates were obtained with weighted median MR (odds ratio, 2.57; 95% CI, 1.05-6.25; P=0.04) and MR pleiotropy residual sum and outlier (odds ratio, 1.81; 95% CI, 0.95-3.46; P=0.08). Conclusions: We found no MR evidence of genetically determined risk of depression affecting ischemic stroke risk but did find consistent MR evidence suggestive of a possible effect on functional outcome after ischemic stroke. Given the widespread prevalence of depression-related morbidity, these findings could have implications for prognostication and personalized rehabilitation after stroke.]]> Thu 25 Aug 2022 11:38:19 AEST ]]> Association of MTHFR C677T genotype with ischemic stroke is confined to cerebral small vessel disease subtype https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:24521 Thu 04 Nov 2021 10:38:38 AEDT ]]> Safeguards to prevent neurologic complications after epidural steroid injections consensus opinions from a multidisciplinary working group and national organizations https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:27464 Sat 24 Mar 2018 07:32:42 AEDT ]]> Recommendations from the international stroke genetics consortium, part 1: standardized phenotypic data collection https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:27208 Sat 24 Mar 2018 07:32:26 AEDT ]]> Are myocardial infarction-associated single-nucleotide polymorphisms associated with ischemic stroke? https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:25211 Sat 24 Mar 2018 07:14:02 AEDT ]]> Genome-wide association meta-analysis of functional outcome after ischemic stroke https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:48737 Fri 31 Mar 2023 16:23:23 AEDT ]]>