Evidence map›Paper›PMID 42816531›Full record

ArticleCommunications biology2026

Decomposing population differences in type 2 diabetes through a high-resolution GWAS of ~600,000 individuals with East Asian ancestry.

Kohei Saito, Hsing-Fang Lu, Tatsuhide Inoue, Takeshi Usui, Toshihiro Shirai, Tatsuo Ogawa, Rieko Kosugi, Chika Kyo, Keiko Hikino, Yun Li and 11 more

Abstract read
In one paragraph

Article in Communications biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

21 authors.

Kohei Saito *Clinical Research Center, Shizuoka General Hospital, Shizuoka, Japan.
Hsing-Fang Lu *Department of Medical Research, China Medical University Hospital, Taichung, Taiwan.
Tatsuhide InoueCenter for Diabetes, Endocrinology and Metabolism, Shizuoka General Hospital, Shizuoka, Japan.
Takeshi UsuiGraduate School of Public Health, Shizuoka Graduate University of Public Health, Shizuoka, Japan.
Toshihiro ShiraiDepartment of Respiratory Medicine, Shizuoka General Hospital, Shizuoka, Japan.
Tatsuo OgawaCenter for Diabetes, Endocrinology and Metabolism, Shizuoka General Hospital, Shizuoka, Japan.
Rieko KosugiCenter for Diabetes, Endocrinology and Metabolism, Shizuoka General Hospital, Shizuoka, Japan.
Chika KyoCenter for Diabetes, Endocrinology and Metabolism, Shizuoka General Hospital, Shizuoka, Japan.
Keiko HikinoThe Laboratory for Pharmacogenomics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan.ORCID 0000-0002-4852-2401
Yun LiDepartment of Genetics, University of North Carolina, Chapel Hill, NC, USA.ORCID 0000-0002-9275-4189
Momoko HorikoshiThe Laboratory for Pharmacogenomics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan.
Hiroshi ItohDepartment of Endocrinology, Metabolism and Nephrology, Keio University School of Medicine, Tokyo, Japan.ORCID 0000-0003-2514-4919
Kaori HayashiDepartment of Endocrinology, Metabolism and Nephrology, Keio University School of Medicine, Tokyo, Japan.
Toshio ShimadaClinical Research Center, Shizuoka General Hospital, Shizuoka, Japan.
Koichi OzakiMedical Genome Center, Research Institute, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan.ORCID 0000-0003-0028-1570
Issei TanakaCenter for Diabetes, Endocrinology and Metabolism, Shizuoka General Hospital, Shizuoka, Japan.
Wen-Ling LiaoDepartment of Medical Research, China Medical University Hospital, Taichung, Taiwan.ORCID 0000-0003-1223-8844
Yen-Ting ChangDepartment of Medical Research, China Medical University Hospital, Taichung, Taiwan.
Ting-Yuan LiuDepartment of Medical Research, China Medical University Hospital, Taichung, Taiwan.ORCID 0000-0002-2729-0541
Fuu-Jen TsaiDepartment of Medical Research, China Medical University Hospital, Taichung, Taiwan. 000704@tool.caaumed.org.tw.
Chikashi TeraoClinical Research Center, Shizuoka General Hospital, Shizuoka, Japan. chikashi@fujita-hu.ac.jp.ORCID 0000-0002-6452-4095

Funding

Japan Agency for Medical Research and Development (AMED) 21ck0106642Japan Agency for Medical Research and Development (AMED) 21tm0424220Japan Agency for Medical Research and Development (AMED) 23ek0410114Japan Agency for Medical Research and Development (AMED) 23tm0424225MEXT | Japan Society for the Promotion of Science (JSPS) KAKENHI grant JP20H00462, and
6 · The paper itself

Abstract

Type 2 diabetes (T2D) is a highly heterogeneous metabolic trait, with a higher prevalence in East Asians. Despite extensive genetic studies focusing mainly on Europeans, how genetic risk for T2D is distributed across biological pathways in East Asians in comparison with Europeans remains incompletely understood. Here, we show results from what is, to our knowledge, the largest genome-wide association study in East Asians, including 596,778 individuals, with a direct comparison to a European study of comparable sample size. We identified 196 loci, including three previously unreported loci. Subsequent multi-ancestry fine-mapping resolved 521 independent causal signals with high precision, revealing that 74% are shared while the remainder are strictly ancestry-specific. Beyond this shared architecture, we observed population differences in regulatory and pathway-level contributions, particularly involving pancreatic regulation and lipid- or adipose-related pathways. Furthermore, constructing a polygenic risk score using the cross-ancestry meta-analysis yielded the most robust predictive performance (AUC = 0.788). These findings clarify how T2D genetic risk is organized across populations, demonstrating that while multi-ancestry integration maximizes clinical predictive power, well-powered single-ancestry studies remain indispensable for uncovering population-specific biological mechanisms.

Indexed as

Diabetes Mellitus, Type 2East Asian PeopleGenome-Wide Association StudyGenetic Predisposition to DiseaseGenetic Risk ScoreHumansPolymorphism, Single Nucleotide

Identifiers

PMID42816531
PMCPMC13627662

What Socratic holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.