Evidence map›Paper›PMID 27099836›Full record

ArticleEuropean thyroid journal2016

Effect of Hypothyroidism and Hyperthyroidism on Tissue Thyroid Hormone Concentrations in Rat.

Riccardo Donzelli, Daria Colligiani, Claudia Kusmic, Martina Sabatini, Leonardo Lorenzini, Alice Accorroni, Monica Nannipieri, Alessandro Saba, Giorgio Iervasi, Riccardo Zucchi

Abstract read
In one paragraph

Article in European thyroid journal, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
–field-weighted citation impact
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

14 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. T3 levels and thyroid hormone signaling.Frontiers in endocrinology · 2022
    Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Assay of Endogenous 3,5-diiodo-L-thyronine (3,5-TFrontiers in endocrinology · 2019
    Article
  14. 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

10 authors.

Riccardo DonzelliDepartments of Pathology, University of Pisa, Pisa, Italy.
Daria ColligianiClinical and Experimental Medicine, University of Pisa, Pisa, Italy.
Claudia KusmicCNR Institute of Clinical Physiology, Pisa, Italy.
Martina SabatiniDepartments of Pathology, University of Pisa, Pisa, Italy.
Leonardo LorenziniDepartments of Pathology, University of Pisa, Pisa, Italy.
Alice AccorroniDepartments of Pathology, University of Pisa, Pisa, Italy; Scuola Superiore Sant'Anna, Pisa, Italy.
Monica NannipieriClinical and Experimental Medicine, University of Pisa, Pisa, Italy.
Alessandro SabaDepartments of Pathology, University of Pisa, Pisa, Italy.
Giorgio IervasiCNR Institute of Clinical Physiology, Pisa, Italy.
Riccardo ZucchiDepartments of Pathology, University of Pisa, Pisa, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectiveThe present study was aimed at determining the effects of experimental hypothyroidism and hyperthyroidism on tissue thyroid hormones by a mass spectrometry-based technique.

methodsRats were subjected to propylthiouracil treatment or administration of exogenous triiodothyronine (T3) or thyroxine (T4). Tissue T3 and T4 were measured by liquid chromatography tandem mass spectrometry in the heart, liver, kidney, visceral and subcutaneous adipose tissue, and brain.

resultsBaseline tissue T3 and T4 concentrations ranged from 0.2 to 20 pmol ∙ g(-1) and from 3 to 125 pmol ∙ g(-1), respectively, with the highest values in the liver and kidney, and the lowest values in the adipose tissue. The T3/T4 ratio (expressed as a percentage) was in the 7-20% range in all tissues except the brain, where it averaged 75%. In hypothyroidism, tissue T3 was more severely reduced than serum free T3, averaging 1-6% of the baseline versus 30% of the baseline. The extent of tissue T3 reduction, expressed as percentage of the baseline, was not homogeneous (p < 0.001), with liver = kidney > brain > heart > adipose tissue. The tissue T3/T4 ratio significantly increased in all organs except the kidney, averaging 330% in the brain and 50-90% in the other tissues. By contrast, exogenous T3 and T4 administration produced similar increases in serum free T3 and in tissue T3, and the relative changes were not significantly different between different tissues.

conclusionsWhile the response to increased thyroid hormones availability was similar in all tissues, decreased thyroid hormone availability induced compensatory responses, leading to a significant mismatch between changes in serum and in specific tissues.

Indexed as

DeiodinasesHypothyroidismMass spectrometryTissue thyroid hormones

Identifiers

PMID27099836
PMCPMC4836127

What OpenQuestion holds

Textmetadata
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.