A cross-population atlas of genetic associations for 220 human phenotypes

S Sakaue, M Kanai, Y Tanigawa, J Karjalainen… - Nature …, 2021 - nature.com
Current genome-wide association studies do not yet capture sufficient diversity in
populations and scope of phenotypes. To expand an atlas of genetic associations in non …

Leveraging fine-mapping and multipopulation training data to improve cross-population polygenic risk scores

O Weissbrod, M Kanai, H Shi, S Gazal, WJ Peyrot… - Nature Genetics, 2022 - nature.com
Polygenic risk scores suffer reduced accuracy in non-European populations, exacerbating
health disparities. We propose PolyPred, a method that improves cross-population …

Multi-ancestry genome-wide association analyses identify novel genetic mechanisms in rheumatoid arthritis

K Ishigaki, S Sakaue, C Terao, Y Luo, K Sonehara… - Nature …, 2022 - nature.com
Rheumatoid arthritis (RA) is a highly heritable complex disease with unknown etiology. Multi-
ancestry genetic research of RA promises to improve power to detect genetic signals, fine …

Tractor uses local ancestry to enable the inclusion of admixed individuals in GWAS and to boost power

EG Atkinson, AX Maihofer, M Kanai, AR Martin… - Nature …, 2021 - nature.com
Admixed populations are routinely excluded from genomic studies due to concerns over
population structure. Here, we present a statistical framework and software package, Tractor …

Improving the trans-ancestry portability of polygenic risk scores by prioritizing variants in predicted cell-type-specific regulatory elements

T Amariuta, K Ishigaki, H Sugishita, T Ohta, M Koido… - Nature …, 2020 - nature.com
Poor trans-ancestry portability of polygenic risk scores is a consequence of Eurocentric
genetic studies and limited knowledge of shared causal variants. Leveraging regulatory …

Genetic analyses identify widespread sex-differential participation bias

N Pirastu, M Cordioli, P Nandakumar, G Mignogna… - Nature Genetics, 2021 - nature.com
Genetic association results are often interpreted with the assumption that study participation
does not affect downstream analyses. Understanding the genetic basis of participation bias …

Reconstruction of the personal information from human genome reads in gut metagenome sequencing data

Y Tomofuji, K Sonehara, T Kishikawa, Y Maeda… - Nature …, 2023 - nature.com
Human DNA present in faecal samples can result in a small number of human reads in gut
shotgun metagenomic sequencing data. However, it is presently unclear how much …

[PDF][PDF] Genome-wide risk prediction of common diseases across ancestries in one million people

N Mars, S Kerminen, YCA Feng, M Kanai, K Läll… - Cell Genomics, 2022 - cell.com
Polygenic risk scores (PRS) measure genetic disease susceptibility by combining risk effects
across the genome. For coronary artery disease (CAD), type 2 diabetes (T2D), and breast …

[PDF][PDF] A unified framework for cross-population trait prediction by leveraging the genetic correlation of polygenic traits

M Cai, J Xiao, S Zhang, X Wan, H Zhao, G Chen… - The American Journal of …, 2021 - cell.com
The development of polygenic risk scores (PRSs) has proved useful to stratify the general
European population into different risk groups. However, PRSs are less accurate in non …

Population-specific causal disease effect sizes in functionally important regions impacted by selection

H Shi, S Gazal, M Kanai, EM Koch, AP Schoech… - Nature …, 2021 - nature.com
Many diseases exhibit population-specific causal effect sizes with trans-ethnic genetic
correlations significantly less than 1, limiting trans-ethnic polygenic risk prediction. We …