1. NOTCH3 p.Arg1231Cys is markedly enriched in South Asians and associated with stroke.
- Author
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Rodriguez-Flores JL, Khalid S, Parikshak N, Rasheed A, Ye B, Kapoor M, Backman J, Sepehrband F, Gioia SAD, Gelfman S, De T, Banerjee N, Sharma D, Martinez H, Castaneda S, D'Ambrosio D, Zhang XA, Xun P, Tsai E, Tsai IC, Khan MZ, Jahanzaib M, Mian MR, Liaqat MB, Mahmood K, Salam TU, Hussain M, Iqbal J, Aslam F, Cantor MN, Tzoneva G, Overton J, Marchini J, Reid JG, Baras A, Verweij N, Lotta LA, Coppola G, Karalis K, Economides A, Fazio S, Liedtke W, Danesh J, Kamal A, Frossard P, Coleman T, Shuldiner AR, and Saleheen D
- Subjects
- Humans, Male, Female, Pakistan, United Kingdom epidemiology, Middle Aged, Gene Frequency, Exome Sequencing, Aged, Magnetic Resonance Imaging, Polymorphism, Single Nucleotide, Mutation, Missense, South Asian People, Receptor, Notch3 genetics, Asian People genetics, Stroke genetics, Genetic Predisposition to Disease
- Abstract
The genetic factors of stroke in South Asians are largely unexplored. Exome-wide sequencing and association analysis (ExWAS) in 75 K Pakistanis identified NM_000435.3(NOTCH3):c.3691 C > T, encoding the missense amino acid substitution p.Arg1231Cys, enriched in South Asians (alternate allele frequency = 0.58% compared to 0.019% in Western Europeans), and associated with subcortical hemorrhagic stroke [odds ratio (OR) = 3.39, 95% confidence interval (CI) = [2.26, 5.10], p = 3.87 × 10
-9 ), and all strokes (OR [CI] = 2.30 [1.77, 3.01], p = 7.79 × 10-10 ). NOTCH3 p.Arg231Cys was strongly associated with white matter hyperintensity on MRI in United Kingdom Biobank (UKB) participants (effect [95% CI] in SD units = 1.1 [0.61, 1.5], p = 3.0 × 10-6 ). The variant is attributable for approximately 2.0% of hemorrhagic strokes and 1.1% of all strokes in South Asians. These findings highlight the value of diversity in genetic studies and have major implications for genomic medicine and therapeutic development in South Asian populations., (© 2024. The Author(s).)- Published
- 2024
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