Genome-wide genotyping demonstrates a polygenic risk score associated with white matter hyperintensity volume in CADASIL. Opherk, C., Gonik, M., Duering, M., Malik, R., Jouvent, E., Herve, D., Adib-Samii, P., Bevan, S., Pianese, L., Silvestri, S., Dotti, M. T., De Stefano, N., Liem, M., Boon, E. M., Pescini, F., Pachai, C., Bracoud, L., Muller-Myhsok, B., Meitinger, T., Rost, N., Pantoni, L., Lesnik Oberstein, S., Federico, A., Ragno, M., Markus, H. S., Tournier-Lasserve, E., Rosand, J., Chabriat, H., & Dichgans, M. Stroke, 45(4):968–72, April, 2014. doi abstract bibtex BACKGROUND AND PURPOSE: White matter hyperintensities (WMH) on MRI are a quantitative marker for sporadic cerebral small vessel disease and are highly heritable. To date, large-scale genetic studies have identified only a single locus influencing WMH burden. This might in part relate to biological heterogeneity of sporadic WMH. The current study searched for genetic modifiers of WMH volume in cerebral autosomal-dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL), a monogenic small vessel disease. METHODS: We performed a genome-wide association study to identify quantitative trait loci for WMH volume by combining data from 517 CADASIL patients collected through 7 centers across Europe. WMH volumes were centrally analyzed and quantified on fluid attenuated inversion recovery images. Genotyping was performed using the Affymetrix 6.0 platform. Individuals were assigned to 2 distinct genetic clusters (cluster 1 and cluster 2) based on their genetic background. RESULTS: Four hundred sixty-six patients entered the final genome-wide association study analysis. The phenotypic variance of WMH burden in CADASIL explained by all single nucleotide polymorphisms in cluster 1 was 0.85 (SE=0.21), suggesting a substantial genetic contribution. Using cluster 1 as derivation and cluster 2 as a validation sample, a polygenic score was significantly associated with WMH burden (P=0.001) after correction for age, sex, and vascular risk factors. No single nucleotide polymorphism reached genome-wide significance. CONCLUSIONS: We found a polygenic score to be associated with WMH volume in CADASIL subjects. Our findings suggest that multiple variants with small effects influence WMH burden in CADASIL. The identification of these variants and the biological pathways involved will provide insights into the pathophysiology of white matter disease in CADASIL and possibly small vessel disease in general.
@article{opherk_genome-wide_2014,
title = {Genome-wide genotyping demonstrates a polygenic risk score associated with white matter hyperintensity volume in {CADASIL}},
volume = {45},
issn = {1524-4628 (Electronic) 0039-2499 (Linking)},
doi = {10.1161/STROKEAHA.113.004461},
abstract = {BACKGROUND AND PURPOSE: White matter hyperintensities (WMH) on MRI are a quantitative marker for sporadic cerebral small vessel disease and are highly heritable. To date, large-scale genetic studies have identified only a single locus influencing WMH burden. This might in part relate to biological heterogeneity of sporadic WMH. The current study searched for genetic modifiers of WMH volume in cerebral autosomal-dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL), a monogenic small vessel disease. METHODS: We performed a genome-wide association study to identify quantitative trait loci for WMH volume by combining data from 517 CADASIL patients collected through 7 centers across Europe. WMH volumes were centrally analyzed and quantified on fluid attenuated inversion recovery images. Genotyping was performed using the Affymetrix 6.0 platform. Individuals were assigned to 2 distinct genetic clusters (cluster 1 and cluster 2) based on their genetic background. RESULTS: Four hundred sixty-six patients entered the final genome-wide association study analysis. The phenotypic variance of WMH burden in CADASIL explained by all single nucleotide polymorphisms in cluster 1 was 0.85 (SE=0.21), suggesting a substantial genetic contribution. Using cluster 1 as derivation and cluster 2 as a validation sample, a polygenic score was significantly associated with WMH burden (P=0.001) after correction for age, sex, and vascular risk factors. No single nucleotide polymorphism reached genome-wide significance. CONCLUSIONS: We found a polygenic score to be associated with WMH volume in CADASIL subjects. Our findings suggest that multiple variants with small effects influence WMH burden in CADASIL. The identification of these variants and the biological pathways involved will provide insights into the pathophysiology of white matter disease in CADASIL and possibly small vessel disease in general.},
number = {4},
journal = {Stroke},
author = {Opherk, C. and Gonik, M. and Duering, M. and Malik, R. and Jouvent, E. and Herve, D. and Adib-Samii, P. and Bevan, S. and Pianese, L. and Silvestri, S. and Dotti, M. T. and De Stefano, N. and Liem, M. and Boon, E. M. and Pescini, F. and Pachai, C. and Bracoud, L. and Muller-Myhsok, B. and Meitinger, T. and Rost, N. and Pantoni, L. and Lesnik Oberstein, S. and Federico, A. and Ragno, M. and Markus, H. S. and Tournier-Lasserve, E. and Rosand, J. and Chabriat, H. and Dichgans, M.},
month = apr,
year = {2014},
pmid = {24578207},
keywords = {Adult, Aged, Female, Humans, Male, Middle Aged, Magnetic Resonance Imaging, Genome-Wide Association Study, Risk Factors, Cadasil, Genetic Predisposition to Disease, *Genome-Wide Association Study, cerebral small vessel diseases, *Models, Genetic, CADASIL/epidemiology/*genetics/pathology, Genetic Predisposition to Disease/epidemiology/*genetics, genetics, genome-wide association study, Hypertension/epidemiology/genetics/pathology, leukoaraiosis, Leukoencephalopathies/epidemiology/*genetics/pathology, Quantitative Trait Loci, CADASIL, Leukoencephalopathies, Hypertension, Models, Genetic},
pages = {968--72},
}
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S.","Tournier-Lasserve, E.","Rosand, J.","Chabriat, H.","Dichgans, M."],"bibdata":{"bibtype":"article","type":"article","title":"Genome-wide genotyping demonstrates a polygenic risk score associated with white matter hyperintensity volume in CADASIL","volume":"45","issn":"1524-4628 (Electronic) 0039-2499 (Linking)","doi":"10.1161/STROKEAHA.113.004461","abstract":"BACKGROUND AND PURPOSE: White matter hyperintensities (WMH) on MRI are a quantitative marker for sporadic cerebral small vessel disease and are highly heritable. To date, large-scale genetic studies have identified only a single locus influencing WMH burden. This might in part relate to biological heterogeneity of sporadic WMH. The current study searched for genetic modifiers of WMH volume in cerebral autosomal-dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL), a monogenic small vessel disease. METHODS: We performed a genome-wide association study to identify quantitative trait loci for WMH volume by combining data from 517 CADASIL patients collected through 7 centers across Europe. WMH volumes were centrally analyzed and quantified on fluid attenuated inversion recovery images. Genotyping was performed using the Affymetrix 6.0 platform. Individuals were assigned to 2 distinct genetic clusters (cluster 1 and cluster 2) based on their genetic background. RESULTS: Four hundred sixty-six patients entered the final genome-wide association study analysis. The phenotypic variance of WMH burden in CADASIL explained by all single nucleotide polymorphisms in cluster 1 was 0.85 (SE=0.21), suggesting a substantial genetic contribution. Using cluster 1 as derivation and cluster 2 as a validation sample, a polygenic score was significantly associated with WMH burden (P=0.001) after correction for age, sex, and vascular risk factors. No single nucleotide polymorphism reached genome-wide significance. CONCLUSIONS: We found a polygenic score to be associated with WMH volume in CADASIL subjects. Our findings suggest that multiple variants with small effects influence WMH burden in CADASIL. The identification of these variants and the biological pathways involved will provide insights into the pathophysiology of white matter disease in CADASIL and possibly small vessel disease in general.","number":"4","journal":"Stroke","author":[{"propositions":[],"lastnames":["Opherk"],"firstnames":["C."],"suffixes":[]},{"propositions":[],"lastnames":["Gonik"],"firstnames":["M."],"suffixes":[]},{"propositions":[],"lastnames":["Duering"],"firstnames":["M."],"suffixes":[]},{"propositions":[],"lastnames":["Malik"],"firstnames":["R."],"suffixes":[]},{"propositions":[],"lastnames":["Jouvent"],"firstnames":["E."],"suffixes":[]},{"propositions":[],"lastnames":["Herve"],"firstnames":["D."],"suffixes":[]},{"propositions":[],"lastnames":["Adib-Samii"],"firstnames":["P."],"suffixes":[]},{"propositions":[],"lastnames":["Bevan"],"firstnames":["S."],"suffixes":[]},{"propositions":[],"lastnames":["Pianese"],"firstnames":["L."],"suffixes":[]},{"propositions":[],"lastnames":["Silvestri"],"firstnames":["S."],"suffixes":[]},{"propositions":[],"lastnames":["Dotti"],"firstnames":["M.","T."],"suffixes":[]},{"propositions":[],"lastnames":["De","Stefano"],"firstnames":["N."],"suffixes":[]},{"propositions":[],"lastnames":["Liem"],"firstnames":["M."],"suffixes":[]},{"propositions":[],"lastnames":["Boon"],"firstnames":["E.","M."],"suffixes":[]},{"propositions":[],"lastnames":["Pescini"],"firstnames":["F."],"suffixes":[]},{"propositions":[],"lastnames":["Pachai"],"firstnames":["C."],"suffixes":[]},{"propositions":[],"lastnames":["Bracoud"],"firstnames":["L."],"suffixes":[]},{"propositions":[],"lastnames":["Muller-Myhsok"],"firstnames":["B."],"suffixes":[]},{"propositions":[],"lastnames":["Meitinger"],"firstnames":["T."],"suffixes":[]},{"propositions":[],"lastnames":["Rost"],"firstnames":["N."],"suffixes":[]},{"propositions":[],"lastnames":["Pantoni"],"firstnames":["L."],"suffixes":[]},{"propositions":[],"lastnames":["Lesnik","Oberstein"],"firstnames":["S."],"suffixes":[]},{"propositions":[],"lastnames":["Federico"],"firstnames":["A."],"suffixes":[]},{"propositions":[],"lastnames":["Ragno"],"firstnames":["M."],"suffixes":[]},{"propositions":[],"lastnames":["Markus"],"firstnames":["H.","S."],"suffixes":[]},{"propositions":[],"lastnames":["Tournier-Lasserve"],"firstnames":["E."],"suffixes":[]},{"propositions":[],"lastnames":["Rosand"],"firstnames":["J."],"suffixes":[]},{"propositions":[],"lastnames":["Chabriat"],"firstnames":["H."],"suffixes":[]},{"propositions":[],"lastnames":["Dichgans"],"firstnames":["M."],"suffixes":[]}],"month":"April","year":"2014","pmid":"24578207","keywords":"Adult, Aged, Female, Humans, Male, Middle Aged, Magnetic Resonance Imaging, Genome-Wide Association Study, Risk Factors, Cadasil, Genetic Predisposition to Disease, *Genome-Wide Association Study, cerebral small vessel diseases, *Models, Genetic, CADASIL/epidemiology/*genetics/pathology, Genetic Predisposition to Disease/epidemiology/*genetics, genetics, genome-wide association study, Hypertension/epidemiology/genetics/pathology, leukoaraiosis, Leukoencephalopathies/epidemiology/*genetics/pathology, Quantitative Trait Loci, CADASIL, Leukoencephalopathies, Hypertension, Models, Genetic","pages":"968–72","bibtex":"@article{opherk_genome-wide_2014,\n\ttitle = {Genome-wide genotyping demonstrates a polygenic risk score associated with white matter hyperintensity volume in {CADASIL}},\n\tvolume = {45},\n\tissn = {1524-4628 (Electronic) 0039-2499 (Linking)},\n\tdoi = {10.1161/STROKEAHA.113.004461},\n\tabstract = {BACKGROUND AND PURPOSE: White matter hyperintensities (WMH) on MRI are a quantitative marker for sporadic cerebral small vessel disease and are highly heritable. To date, large-scale genetic studies have identified only a single locus influencing WMH burden. This might in part relate to biological heterogeneity of sporadic WMH. The current study searched for genetic modifiers of WMH volume in cerebral autosomal-dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL), a monogenic small vessel disease. METHODS: We performed a genome-wide association study to identify quantitative trait loci for WMH volume by combining data from 517 CADASIL patients collected through 7 centers across Europe. WMH volumes were centrally analyzed and quantified on fluid attenuated inversion recovery images. Genotyping was performed using the Affymetrix 6.0 platform. Individuals were assigned to 2 distinct genetic clusters (cluster 1 and cluster 2) based on their genetic background. RESULTS: Four hundred sixty-six patients entered the final genome-wide association study analysis. The phenotypic variance of WMH burden in CADASIL explained by all single nucleotide polymorphisms in cluster 1 was 0.85 (SE=0.21), suggesting a substantial genetic contribution. Using cluster 1 as derivation and cluster 2 as a validation sample, a polygenic score was significantly associated with WMH burden (P=0.001) after correction for age, sex, and vascular risk factors. No single nucleotide polymorphism reached genome-wide significance. CONCLUSIONS: We found a polygenic score to be associated with WMH volume in CADASIL subjects. Our findings suggest that multiple variants with small effects influence WMH burden in CADASIL. 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