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
- Aged, Female, Humans, Male, Middle Aged, Exome Sequencing, Gene Frequency, Magnetic Resonance Imaging, Mutation, Missense, Pakistan ethnology, Polymorphism, Single Nucleotide, South Asian People genetics, United Kingdom epidemiology, UK Biobank, Genetic Predisposition to Disease, Receptor, Notch3 genetics, Stroke genetics
- 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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