Genetic overlap and causal inferences between kidney function and cerebrovascular disease

Autor: R. Malik, Christopher D. Anderson, Martin Dichgans, Jonathan Rosand, Sandro Marini, Jaeyoon Chung, Jonathan Henry, Marios K. Georgakis
Rok vydání: 2020
Předmět:
0301 basic medicine
Oncology
Multifactorial Inheritance
Linkage disequilibrium
medicine.medical_specialty
genetics [Cerebrovascular Disorders]
Renal function
Genome-wide association study
Kidney
Kidney Function Tests
Risk Assessment
Linkage Disequilibrium
03 medical and health sciences
0302 clinical medicine
Internal medicine
Mendelian randomization
medicine
Humans
Genetic Predisposition to Disease
physiopathology [Kidney]
ddc:610
Renal Insufficiency
Chronic

physiopathology [Cerebral Small Vessel Diseases]
Stroke
physiopathology [Stroke]
business.industry
physiopathology [Cerebrovascular Disorders]
Odds ratio
medicine.disease
Magnetic Resonance Imaging
Hyperintensity
Cerebrovascular Disorders
030104 developmental biology
Cerebral Small Vessel Diseases
complications [Renal Insufficiency
Chronic]

genetics [Cerebral Small Vessel Diseases]
Neurology (clinical)
business
030217 neurology & neurosurgery
Genome-Wide Association Study
Glomerular Filtration Rate
Kidney disease
Zdroj: Neurology 94(24), e2581-e2591 (2020). doi:10.1212/WNL.0000000000009642
ISSN: 1526-632X
0028-3878
DOI: 10.1212/wnl.0000000000009642
Popis: ObjectiveLeveraging large-scale genetic data, we aimed to identify shared pathogenic mechanisms and causal relationships between impaired kidney function and cerebrovascular disease phenotypes.MethodsWe used summary statistics from genome-wide association studies (GWAS) of kidney function traits (chronic kidney disease diagnosis, estimated glomerular filtration rate [eGFR], and urinary albumin-to-creatinine ratio [UACR]) and cerebrovascular disease phenotypes (ischemic stroke and its subtypes, intracerebral hemorrhage [ICH], and white matter hyperintensities [WMH] on brain MRI). We (1) tested the genetic overlap between them with polygenic risk scores (PRS), (2) searched for common pleiotropic loci with pairwise GWAS analyses, and (3) explored causal associations by employing 2-sample Mendelian randomization.ResultsA PRS for lower eGFR was associated with higher large artery stroke (LAS) risk (p = 1 × 10−4). Multiple pleiotropic loci were identified between kidney function traits and cerebrovascular disease phenotypes, with 12q24 associated with eGFR and both LAS and small vessel stroke (SVS), and 2q33 associated with UACR and both SVS and WMH. Mendelian randomization revealed associations of both lower eGFR (odds ratio [OR] per 1-log decrement, 2.10; 95% confidence interval [CI], 1.38–3.21) and higher UACR (OR per 1-log increment, 2.35; 95% CI, 1.12–4.94) with a higher risk of LAS, as well as between higher UACR and higher risk of ICH.ConclusionsImpaired kidney function, as assessed by decreased eGFR and increased UACR, may be causally involved in the pathogenesis of LAS. Increased UACR, previously proposed as a marker of systemic small vessel disease, is involved in ICH risk and shares a genetic risk factor at 2q33 with manifestations of cerebral small vessel disease.
Databáze: OpenAIRE