Evidence mapPaperPMID 32236731Full record

ReviewDiabetologia2020

Why are South Asians prone to type 2 diabetes? A hypothesis based on underexplored pathways.

K M Venkat Narayan, Alka M Kanaya

Open access · bronzeAbstract readReview
In one paragraph

Review in Diabetologia, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 120 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
120citing papers in PubMed, 4 pooled it
14.3field-weighted citation impact, top 1% of its field
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

120 citing papers in PubMed, 4 syntheses or guidelines pooled it, 196 citations in OpenAlex.

  1. Pooled it
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  13. The landscape of dementia in India: Prevalence, risk factors, and opportunities ahead.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Review
  14. Article
  15. Article
  16. Article
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  18. Reuniting diabetes through the islet coordinate framework.The lancet. Diabetes & endocrinology · 2026
    Article
  19. Review
  20. American journal of preventive cardiology · 2026
    Article

60 more citing papers are in PubMed but not listed here.

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

2 authors at 2 institutions in 1 country.

K M Venkat NarayanEmory Global Diabetes Research Center, Hubert Department of Global Health, Rollins School of Public Health, Emory University, 1518 Clifton Road NE, CNR Room 7043, Atlanta, GA, 30329, USA. knaraya@emory.edu.ORCID 0000-0001-8621-5405
Alka M KanayaDepartment of Medicine and Epidemiology and Biostatistics, University of California, San Francisco, CA, USA.ORCID 0000-0002-8903-1457
Emory University · USUniversity of California, San Francisco · US

Funding

ZIDOVUDINE &LAMIVUDINE &NEVIRAPINE COMBINATION THERAPY IN HIV 1 INFM01RR001271 · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · 1985 to 2005
$21.3M
Technologies Advancing Translation - Regional CoreP30DK111024 · EMORY UNIVERSITY · 2025 to 2025
$775k
NCRR NIH HHS M01 RR001271NHLBI NIH HHS HHSN268200900026CNHLBI NIH HHS K24 HL112827NHLBI NIH HHS R01 HL093009NHLBI NIH HHS R01 HL125442NIDDK NIH HHS P30 DK098722NIDDK NIH HHS P30 DK111024
6 · The paper itself

Abstract

South Asians have a high prevalence of type 2 diabetes, even at a lower BMI. This review sets out our perspective and hypothesis on the reasons for this. Emerging data from epidemiological studies indicate that South Asians may have a lower ability to secrete insulin, and thus may have less compensatory reserves when challenged with unhealthy lifestyles. Thus, insulin resistance may not be the primary driver of type 2 diabetes in this population. Furthermore, data also suggest that South Asians, on average, have lower muscle mass, and may have a specific propensity to ectopic hepatic fat accumulation and for intramyocellular fat deposition, which cause further disruption in insulin action. We hypothesise that the high diabetes susceptibility in South Asians is evolutionarily set through dual parallel and/or interacting mechanisms: reduced beta cell function and impaired insulin action owing to low lean mass, which is further accentuated by ectopic fat deposition in the liver and muscle. These areas warrant further research.

Indexed as

Adipose TissueAsian PeopleBody CompositionDiabetes Mellitus, Type 2HumansInsulinLiverInsulinAetiologyEvolutionary biologyHepatic fatInsulin secretionLean muscle massPathophysiologyReviewSouth AsiansType 2 diabetes

Identifiers

PMID32236731
PMCPMC7531132
OpenAlexW3014402135

What Socratic holds

Textmetadata
LicenceTDM
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.