Evidence map›Paper›PMID 27819034›Full record

ArticleTransplantation direct2016

Quantification of β-Cell Mass in Intramuscular Islet Grafts Using Radiolabeled Exendin-4.

Daniel Espes, Ramkumar Selvaraju, Irina Velikyan, Martin Krajcovic, Per-Ola Carlsson, Olof Eriksson

Open access · goldAbstract read
In one paragraph

Article in Transplantation direct, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

7 citing papers in PubMed, 13 citations in OpenAlex.

  1. Review
  2. Article
  3. Beta Cell Imaging-From Pre-Clinical Validation to First in Man Testing.International journal of molecular sciences · 2020
    Review
  4. Considerations for an Alternative Site of Islet Cell Transplantation.Journal of diabetes science and technology · 2020
    Review
  5. Review
  6. Article
  7. Review
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

6 authors at 1 institution in 1 country.

Daniel EspesDepartment of Medical Cell Biology, Uppsala University, Sweden.; Department of Medical Sciences, Uppsala University, Sweden.
Ramkumar SelvarajuDivision of Molecular Imaging, Department of Medicinal Chemistry, Uppsala University, Sweden.
Irina VelikyanDivision of Molecular Imaging, Department of Medicinal Chemistry, Uppsala University, Sweden.; PET Center, Uppsala University Hospital, Sweden.
Martin KrajcovicDivision of Molecular Imaging, Department of Medicinal Chemistry, Uppsala University, Sweden.
Per-Ola CarlssonDepartment of Medical Cell Biology, Uppsala University, Sweden.; Department of Medical Sciences, Uppsala University, Sweden.
Olof ErikssonDivision of Molecular Imaging, Department of Medicinal Chemistry, Uppsala University, Sweden.; Turku PET center, Faculty of Natural Sciences and Technology, Åbo Akademi, Turku, Finland.
Uppsala University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere is an increasing interest in alternative implantation sites to the liver for islet transplantation. Intramuscular implantation has even been tested clinically. Possibilities to monitor β-cell mass would be of huge importance not only for the understanding of islet engraftment but also for the decision of changing the immunosuppressive regime. We have therefore evaluated the feasibility of quantifying intramuscular β-cell mass using the radiolabeled glucagon like peptide-1 receptor agonist DO3A-VS-Cys

methodsOne hundred to 400 islets were transplanted to the abdominal muscle of nondiabetic mice. After 3 to 4 weeks, 0.2 to 0.5 MBq [

resultsIntramuscular islet grafts could easily be visualized by this tracer, and the background uptake was very low. There was a linear correlation between the radioactivity uptake and the number of transplanted islets, both for standardized uptake values and the total radiotracer uptake in each graft (percentage of injected dose). The quantified total insulin area of surviving β cells showed an even stronger correlation to both standardized uptake values (

conclusions[

Identifiers

PMID27819034
PMCPMC5082995
OpenAlexW2491942230

What OpenQuestion holds

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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.