Evidence map›Paper›PMID 27591853›Full record

ArticleDiabetologia2016

Beta cell function and ongoing autoimmunity in long-standing, childhood onset type 1 diabetes.

Georgina M Williams, Anna E Long, Isabel V Wilson, Rachel J Aitken, Rebecca C Wyatt, Timothy J McDonald, F Susan Wong, Andrew T Hattersley, Alistair J K Williams, Polly J Bingley and 1 more

Open access · hybridAbstract read
In one paragraph

Article in Diabetologia, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
3.9field-weighted citation impact, top 7% 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

25 citing papers in PubMed, 43 citations in OpenAlex.

  1. Trial
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  8. Diagnosing Type 1 diabetes in adults: Guidance from the UK T1D Immunotherapy consortium.Diabetic medicine : a journal of the British Diabetic Association · 2022
    Article
  9. Article
  10. Observational
  11. Article
  12. Article
  13. Article
  14. Review
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  16. Beta Cell Imaging-From Pre-Clinical Validation to First in Man Testing.International journal of molecular sciences · 2020
    Review
  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

11 authors at 4 institutions in 1 country.

Georgina M WilliamsDiabetes and Metabolism, School of Clinical Sciences, Southmead Hospital, Level 2 Learning and Research Building, Bristol, BS10 5NB, UK.
Anna E LongDiabetes and Metabolism, School of Clinical Sciences, Southmead Hospital, Level 2 Learning and Research Building, Bristol, BS10 5NB, UK.
Isabel V WilsonDiabetes and Metabolism, School of Clinical Sciences, Southmead Hospital, Level 2 Learning and Research Building, Bristol, BS10 5NB, UK.
Rachel J AitkenDiabetes and Metabolism, School of Clinical Sciences, Southmead Hospital, Level 2 Learning and Research Building, Bristol, BS10 5NB, UK.
Rebecca C WyattDiabetes and Metabolism, School of Clinical Sciences, Southmead Hospital, Level 2 Learning and Research Building, Bristol, BS10 5NB, UK.
Timothy J McDonaldInstitute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, UK.
F Susan WongInstitute of Molecular and Experimental Medicine, Cardiff University School of Medicine, Cardiff, UK.
Andrew T HattersleyInstitute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, UK.
Alistair J K WilliamsDiabetes and Metabolism, School of Clinical Sciences, Southmead Hospital, Level 2 Learning and Research Building, Bristol, BS10 5NB, UK.
Polly J BingleyDiabetes and Metabolism, School of Clinical Sciences, Southmead Hospital, Level 2 Learning and Research Building, Bristol, BS10 5NB, UK.
Kathleen M GillespieDiabetes and Metabolism, School of Clinical Sciences, Southmead Hospital, Level 2 Learning and Research Building, Bristol, BS10 5NB, UK. k.m.gillespie@bristol.ac.uk.
Southmead Hospital · GBUniversity of Exeter · GBCardiff University · GBUniversity Hospitals Bristol NHS Foundation Trust · GB

Funding

Department of Health NIHR-HCS-P12-03-03
6 · The paper itself

Abstract

aims/hypothesisThis study aimed to determine the frequency of residual beta cell function in individuals with long-standing type 1 diabetes who were recruited at diagnosis, and relate this to baseline and current islet autoantibody profile.

methodsTwo hour post-meal urine C-peptide:creatinine ratio (UCPCR) and islet autoantibodies were measured in samples collected from 144 participants (median age at diagnosis: 11.7 years; 47% male), a median of 23 years (range 12-29 years) after diagnosis. UCPCR thresholds equivalent to mixed meal-stimulated serum C-peptide >0.001 nmol/l, ≥0.03 nmol/l and ≥0.2 nmol/l were used to define 'detectable', 'minimal' and 'residual/preserved') endogenous insulin secretion, respectively. Autoantibodies against GAD (GADA), islet antigen-2 (IA-2A), zinc transporter 8 (ZnT8A) and insulin (IAA) were measured by radioimmunoassay.

resultsEndogenous C-peptide secretion was detectable in 51 participants (35.4%), including residual secretion in seven individuals (4.9%) and minimal secretion in 14 individuals (9.7%). In the 132 samples collected more than 10 years after diagnosis, 86 participants (65.2%) had at least one islet autoantibody: 42 (31.8%) were positive for GADA, 69 (52.3%) for IA-2A and 14 of 104 tested were positive for ZnT8A (13.5%). The level of UCPCR was related to age at diagnosis (p = 0.002) and was independent of diabetes duration, and baseline or current islet autoantibody status. CONCLUSIONS/

interpretationThere is evidence of ongoing autoimmunity in the majority of individuals with longstanding diabetes. Endogenous insulin secretion continues for many years after diagnosis in individuals diagnosed with autoimmune-mediated type 1 diabetes above age 5. These findings suggest that some beta cells are protected from continued autoimmune attack in longstanding type 1 diabetes.

Indexed as

AdolescentAdultAutoantibodiesAutoimmunityChildC-PeptideCreatineDiabetes Mellitus, Type 1GenotypeHistocompatibility Antigens Class IIHumansInsulin-Secreting CellsRadioimmunoassayYoung AdultAutoantibodiesC-PeptideCreatineHistocompatibility Antigens Class IIAutoantibodiesC-peptideType 1 diabetes

Identifiers

PMID27591853
PMCPMC6518060
OpenAlexW2508320121

What OpenQuestion holds

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LicenceCC BY
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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.