Evidence map›Paper›PMID 34355503›Full record

ArticleAmerican journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons2022

The impact of islet mass, number of transplants, and time between transplants on graft function in a national islet transplant program.

Shareen Forbes, Anneliese J Flatt, Denise Bennett, Robert Crookston, Mirka Pimkova, Linda Birtles, Andrew Pernet, Ruth C Wood, Keith Burling, Peter Barker and 9 more

Open access · hybridAbstract read
In one paragraph

Article in American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
4.4field-weighted citation impact, top 5% 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

17 citing papers in PubMed, 26 citations in OpenAlex.

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  5. Double transgenic neonatal porcine islets as an alternative source for beta cell replacement therapy.Proceedings of the National Academy of Sciences of the United States of America · 2024
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  16. The impact of islet mass, number of transplants, and time between transplants on graft function in a national islet transplant program.American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons · 2022
    Article
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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

19 authors at 10 institutions in 1 country.

Shareen ForbesBHF Centre for Cardiovascular Sciences, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK.ORCID 0000-0002-9127-0641
Anneliese J FlattTranslational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK.
Denise BennettInstitute of Transplantation, Freeman Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK.
Robert CrookstonNuffield Department of Surgery, University of Oxford, John Radcliffe Hospital, Oxford, UK.
Mirka PimkovaInstitute of Immunity and Transplantation, Royal Free Hospital, London, UK.
Linda BirtlesDiabetes, Endocrinology and Metabolism Centre, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK.
Andrew PernetDepartment of Diabetes, School of Life Course Sciences, King's College London, UK.
Ruth C WoodNewcastle Clinical Trials Unit, Newcastle University, Newcastle upon Tyne, UK.
Keith BurlingCore Biochemical Assay Laboratory, NIHR Cambridge Biomedical Research Centre, Cambridge, UK.
Peter BarkerCore Biochemical Assay Laboratory, NIHR Cambridge Biomedical Research Centre, Cambridge, UK.
Claire CounterNHS Blood and Transplant, Statistics and Clinical Research, Bristol, UK.
Alistair LumbOxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, UK.
Pratik ChoudharyDepartment of Diabetes, School of Life Course Sciences, King's College London, UK.
Martin K RutterDiabetes, Endocrinology and Metabolism Centre, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK.
Miranda RosenthalInstitute of Immunity and Transplantation, Royal Free Hospital, London, UK.
Andrew SutherlandTransplant Unit, Royal Infirmary of Edinburgh, Edinburgh, UK.
John CaseyTransplant Unit, Royal Infirmary of Edinburgh, Edinburgh, UK.
Paul JohnsonNuffield Department of Surgery, University of Oxford, John Radcliffe Hospital, Oxford, UK.
James A M ShawTranslational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK.ORCID 0000-0002-2893-3211
Edinburgh Royal Infirmary · GBNewcastle upon Tyne Hospitals NHS Foundation Trust · GBJohn Radcliffe Hospital · GBKing's College London · GBManchester Academic Health Science Centre · GBNIHR Cambridge Biomedical Research CentreThe Royal Free Hospital · GBNewcastle University · GBNHS Blood and Transplant · GBUniversity of Oxford · GB

Funding

Chief Scientist Office TCS/17/31Medical Research Council MR/V038087/1
6 · The paper itself

Abstract

The UK islet allotransplant program is nationally funded to deliver one or two transplants over 12 months to individuals with type 1 diabetes and recurrent severe hypoglycemia. Analyses were undertaken 10 years after program inception to evaluate associations between transplanted mass; single versus two transplants; time between two transplants and graft survival (stimulated C-peptide >50 pmol/L) and function. In total, 84 islet transplant recipients were studied. Uninterrupted graft survival over 12 months was attained in 23 (68%) single and 47 (94%) (p = .002) two transplant recipients (separated by [median (IQR)] 6 (3-8) months). 64% recipients of one or two transplants with uninterrupted function at 12 months sustained graft function at 6 years. Total transplanted mass was associated with Mixed Meal Tolerance Test stimulated C-peptide at 12 months (p < .01). Despite 1.9-fold greater transplanted mass in recipients of two versus one islet infusion (12 218 [9291-15 417] vs. 6442 [5156-7639] IEQ/kg; p < .0001), stimulated C-peptide was not significantly higher. Shorter time between transplants was associated with greater insulin dose reduction at 12 months (beta -0.35; p = .02). Graft survival over the first 12 months was greater in recipients of two versus one islet transplant in the UK program, although function at 1 and 6 years was comparable. Minimizing the interval between 2 islet infusions may maximize cumulative impact on graft function.

Indexed as

Diabetes Mellitus, Type 1Islets of Langerhans TransplantationC-PeptideGraft SurvivalHumansInsulinC-PeptideInsulinclinical research/practicediabetes: type 1endocrinology/diabetologygraft survivalislet isolationislet transplantation

Identifiers

PMID34355503
PMCPMC9292186
OpenAlexW3189622182

What OpenQuestion holds

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Read underepoch 390

Registered trials

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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.