Evidence map›Paper›PMID 32295807›Full record

Observational studyDiabetes care2020

Dietary Manganese, Plasma Markers of Inflammation, and the Development of Type 2 Diabetes in Postmenopausal Women: Findings From the Women's Health Initiative.

Jung Ho Gong, Kenneth Lo, Qing Liu, Jie Li, Shuiqing Lai, Aladdin H Shadyab, Chrisa Arcan, Linda Snetselaar, Simin Liu

Open access · greenAbstract readObservational Study
In one paragraph

Observational study in Diabetes care, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 12% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 40 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. Trace elements: Clinical perspectives in the critically ill.Journal of the Intensive Care Society · 2025
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Article
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

9 authors at 4 institutions in 2 countries.

Jung Ho GongDepartment of Epidemiology, Brown University, Providence, RI.ORCID 0000-0003-0382-8279
Kenneth LoDepartment of Epidemiology, Brown University, Providence, RI.ORCID 0000-0003-4624-2737
Qing LiuDepartment of Epidemiology, Brown University, Providence, RI.
Jie LiDepartment of Epidemiology, Brown University, Providence, RI.
Shuiqing LaiDepartment of Epidemiology, Brown University, Providence, RI.
Aladdin H ShadyabDepartment of Family Medicine and Public Health, University of California San Diego School of Medicine, La Jolla, CA.
Chrisa ArcanDepartment of Family, Population, and Preventive Medicine, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY.
Linda SnetselaarDepartment of Epidemiology, University of Iowa College of Public Health, Iowa City, IA.
Simin LiuDepartment of Epidemiology, Brown University, Providence, RI simin_liu@brown.edu.ORCID 0000-0003-2098-3844
Brown University · USStony Brook School · USUniversity of California San Diego · USUniversity of Iowa · US

Funding

A nested case-control study of exposure to toxic metals, essential metals and their interaction on the risk of type 2 diabetesR01ES029082 · NIEHS · BROWN UNIVERSITY · PI LIU, SIMIN, YANA, BAI · 2019 to 2022
$2.1M
SNRK(sucrose non-fermenting related kinase)and adipose energy homeostasisR01DK103699 · NIDDK · BROWN UNIVERSITY · PI XU, HAIYAN · 2015 to 2018
$1.6M
NHLBI NIH HHS HHSN268201600001CNHLBI NIH HHS HHSN268201600002CNHLBI NIH HHS HHSN268201600003CNHLBI NIH HHS HHSN268201600004CNHLBI NIH HHS HHSN268201600018CNIDDK NIH HHS R01 DK103699NIEHS NIH HHS R01 ES029082
6 · The paper itself

Abstract

objectiveTo examine the association between manganese intake and the risk of type 2 diabetes in postmenopausal women and determine whether this association is mediated by circulating markers of inflammation. RESEARCH DESIGN AND

methodsWe included 84,285 postmenopausal women without a history of diabetes from the national Women's Health Initiative Observational Study (WHI-OS). Replication analysis was then conducted among 62,338 women who participated in the WHI-Clinical Trial (WHI-CT). Additionally, data from a case-control study of 3,749 women nested in the WHI-OS with information on biomarkers of inflammation and endothelial dysfunction were examined using mediation analysis to determine the relative contributions of these known biomarkers by which manganese affects type 2 diabetes risk.

resultsCompared with the lowest quintile of energy-adjusted dietary manganese, WHI-OS participants in the highest quintile had a 30% lower risk of type 2 diabetes (hazard ratio [HR] 0.70 [95% CI 0.65, 0.76]). A consistent association was also confirmed in the WHI-CT (HR 0.79 [95% CI 0.73, 0.85]). In the nested case-control study, higher energy-adjusted dietary manganese was associated with lower circulating levels of inflammatory biomarkers that significantly mediated the association between dietary manganese and type 2 diabetes risk. Specifically, 19% and 12% of type 2 diabetes risk due to manganese were mediated through interleukin 6 and hs-CRP, respectively.

conclusionsHigher intake of manganese was directly associated with a lower type 2 diabetes risk independent of known risk factors. This association may be partially mediated by inflammatory biomarkers.

Indexed as

AgedBiomarkersCase-Control StudiesDiabetes Mellitus, Type 2DietFemaleFollow-Up StudiesHumansInflammationManganeseMiddle AgedPostmenopauseRisk FactorsWomen's HealthBiomarkersManganese

Identifiers

PMID32295807
PMCPMC7245351
OpenAlexW3016479854

What OpenQuestion 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 OpenQuestion graph.