Evidence map›Paper›PMID 28060459›Full record

ArticleJournal of diabetes investigation2017

Circulating ferritin concentrations and risk of type 2 diabetes in Japanese individuals.

Shamima Akter, Akiko Nanri, Keisuke Kuwahara, Yumi Matsushita, Tohru Nakagawa, Maki Konishi, Toru Honda, Shuichiro Yamamoto, Takeshi Hayashi, Mitsuhiko Noda and 1 more

Open access · goldAbstract read
In one paragraph

Article in Journal of diabetes investigation, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

13 citing papers in PubMed, 39 citations in OpenAlex.

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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

11 authors at 3 institutions in 1 country.

Shamima AkterDepartment of Epidemiology and Prevention, Bureau of International Health Cooperation, National Center for Global Health and Medicine, Tokyo, Japan.
Akiko NanriDepartment of Epidemiology and Prevention, Bureau of International Health Cooperation, National Center for Global Health and Medicine, Tokyo, Japan.
Keisuke KuwaharaDepartment of Epidemiology and Prevention, Bureau of International Health Cooperation, National Center for Global Health and Medicine, Tokyo, Japan.
Yumi MatsushitaDepartment of Clinical Research Coordination, Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo, Japan.
Tohru NakagawaHitachi Health Care Center, Hitachi, Ltd., Ibaraki, Japan.
Maki KonishiDepartment of Epidemiology and Prevention, Bureau of International Health Cooperation, National Center for Global Health and Medicine, Tokyo, Japan.
Toru HondaHitachi Health Care Center, Hitachi, Ltd., Ibaraki, Japan.
Shuichiro YamamotoHitachi Health Care Center, Hitachi, Ltd., Ibaraki, Japan.
Takeshi HayashiHitachi Health Care Center, Hitachi, Ltd., Ibaraki, Japan.
Mitsuhiko NodaDepartment of Diabetes Research, Diabetes Research Center, National Center for Global Health and Medicine, Tokyo, Japan.
Tetsuya MizoueDepartment of Epidemiology and Prevention, Bureau of International Health Cooperation, National Center for Global Health and Medicine, Tokyo, Japan.
National Center for Global Health and Medicine · JPHitachi (Japan) · JPTeikyo University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

AIMS/

introductionHigher iron storage has been linked to an increased risk of type 2 diabetes, but little is known about the mediator of this association. Here, we prospectively investigated the association between circulating ferritin, a marker of iron storage, and the incidence of type 2 diabetes among Japanese individuals. MATERIALS AND

methodsThe participants were 4,754 employees who attended a comprehensive health check-up in 2008-2009 and donated blood for the study. During 5 years of follow up, diabetes was identified based on plasma glucose, glycated hemoglobin and self-report. Two controls matched to each case on sex, age and date of check-up were randomly chosen using density sampling, giving 327 cases and 641 controls with ferritin measurement. Cox proportional hazards regression was used to estimate the hazard ratio while adjusting for a series of potential confounders or mediators.

resultsElevated serum ferritin levels were associated with a significantly increased risk of type 2 diabetes, with the hazard ratio adjusted for known risk factors in the highest vs lowest quartile of 1.42 (95% confidence interval: 1.03-1.96). This association was unchanged after adjustment for C-reactive protein and adiponectin, but attenuated after adjustment for liver enzyme and insulin resistance (hazard ratio 1.04). The ferritin-diabetes association was confined to non-obese participants.

conclusionsThese results suggest that elevated iron storage is associated with increased risk of type 2 diabetes in normal weight individuals, and that this association is partly mediated through liver dysfunction and resulting insulin resistance.

Indexed as

AdultCase-Control StudiesCohort StudiesDiabetes Mellitus, Type 2FemaleFerritinsHumansIncidenceJapanMaleMiddle AgedFerritinsFerritinJapaneseType 2 diabetes

Identifiers

PMID28060459
PMCPMC5497053
OpenAlexW2570210808

What OpenQuestion holds

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LicenceCC BY-NC
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.