Evidence map›Paper›PMID 18468505›Full record

ArticleBone2008

Iodothyronine deiodinase enzyme activities in bone.

Allan J Williams, Helen Robson, Monique H A Kester, Johannes P T M van Leeuwen, Stephen M Shalet, Theo J Visser, Graham R Williams

Open access · hybridAbstract read
In one paragraph

Article in Bone, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 1 pooled it
2.9field-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

35 citing papers in PubMed, 1 synthesis or guideline pooled it, 94 citations in OpenAlex.

  1. Guideline
  2. Review
  3. Review
  4. Article
  5. Article
  6. How does Hashimoto's thyroiditis affect bone metabolism?Reviews in endocrine & metabolic disorders · 2023
    Review
  7. Review
  8. Endocrine Regulation on Bone by Thyroid.Frontiers in endocrinology · 2022
    Review
  9. Article
  10. Article
  11. Review
  12. Influence of Low Total Triiodothyronine Levels on Bone Turnover Markers in Type 2 Diabetes Mellitus.Diabetes, metabolic syndrome and obesity : targets and therapy · 2021
    Article
  13. Role of thyroid hormones in craniofacial development.Nature reviews. Endocrinology · 2020
    Review
  14. Review
  15. Article
  16. Review
  17. Article
  18. Article
  19. Review
  20. 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

7 authors at 5 institutions in 2 countries.

Allan J WilliamsMolecular Endocrinology Group, Division of Medicine and Medical Research Council (MRC) Clinical Sciences Centre, Imperial College London, Hammersmith Hospital, London W12 0NN, UK.
Helen RobsonDepartment of Clinical Research, Christie Hospital National Health Service (NHS) Trust, Manchester, M20 4BX, UK; Cancer Tissue Bank Research Centre, Department of Pathology, Duncan Building, University of Liverpool, Daulby Street, L69 3GA, UK.
Monique H A KesterDepartment of Internal Medicine, Erasmus University Medical Center, 3015 GE Rotterdam, The Netherlands.
Johannes P T M van LeeuwenDepartment of Internal Medicine, Erasmus University Medical Center, 3015 GE Rotterdam, The Netherlands.
Stephen M ShaletDepartment of Endocrinology, Christie Hospital NHS Trust, Manchester, M20 4BX, UK.
Theo J VisserDepartment of Internal Medicine, Erasmus University Medical Center, 3015 GE Rotterdam, The Netherlands.
Graham R WilliamsMolecular Endocrinology Group, Division of Medicine and Medical Research Council (MRC) Clinical Sciences Centre, Imperial College London, Hammersmith Hospital, London W12 0NN, UK. Electronic address: graham.williams@imperial.ac.uk.
Erasmus MC · NLHammersmith Hospital · GBMedical Research Council · GBThe Christie Hospital · GBUniversity of Liverpool · GB

Funding

Medical Research Council G0501486Medical Research Council G9803002Wellcome Trust 076584Wellcome Trust 50570
6 · The paper itself

Abstract

Euthyroid status is essential for normal skeletal development and maintenance of the adult skeleton, but the mechanisms which control supply of thyroid hormone to bone cells are poorly understood. Thyroid hormones enter target cells via monocarboxylate transporter-8 (MCT8), which provides a functional link between thyroid hormone uptake and metabolism in the regulation of T3-action but has not been investigated in bone. Most circulating active thyroid hormone (T3) is derived from outer ring deiodination of thyroxine (T4) mediated by the type 1 deiodinase enzyme (D1). The D2 isozyme regulates intra-cellular T3 supply and determines saturation of the nuclear T3-receptor (TR), whereas a third enzyme (D3) inactivates T4 and T3 to prevent hormone availability and reduce TR-saturation. The aim of this study was to determine whether MCT8 is expressed in the skeleton and whether chondrocytes, osteoblasts and osteoclasts express functional deiodinases. Gene expression was analyzed by RT-PCR and D1, D2 and D3 function by sensitive and highly specific determination of enzyme activities. MCT8 mRNA was expressed in chondrocytes, osteoblasts and osteoclasts at all stages of cell differentiation. D1 activity was undetectable in all cell types, D2 activity was only present in mature osteoblasts whereas D3 activity was evident throughout chondrocyte, osteoblast and osteoclast differentiation in primary cell cultures. These data suggest that T3 availability especially during skeletal development may be limited by D3-mediated catabolism rather than by MCT8 mediated cellular uptake or D2-dependent T3 production.

Indexed as

AnimalsBone and BonesFemaleIodide PeroxidaseMaleMiceMice, Inbred StrainsRatsRats, Inbred StrainsReverse Transcriptase Polymerase Chain ReactionIodide Peroxidase

Identifiers

PMID18468505
PMCPMC2681075
OpenAlexW2159639028

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.