Evidence map›Paper›PMID 30158537›Full record

ArticleScientific reports2018

Corticosterone levels reflect variation in metabolic rate, independent of 'stress'.

Blanca Jimeno, Michaela Hau, Simon Verhulst

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed, 2 pooled it
19.3field-weighted citation impact, top 1% 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

43 citing papers in PubMed, 2 syntheses or guidelines pooled it, 126 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
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  6. Physiological and behavioural responses of wandering albatross chicks (Diomedea exulans) to novel and non-novel predators.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2026
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  13. Metabolic rate and saliva cortisol concentrations in socially housed adolescent guinea pigs.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2024
    Article
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  16. Modelling the role of glucocorticoid receptor as mediator of endocrine responses to environmental challenge.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2024
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  20. Blood chemistry and biliverdin differ according to reproduction and tourism in a free-living lizard.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2023
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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

3 authors at 2 institutions in 2 countries.

Blanca JimenoGroningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, The Netherlands. bjimenorev@gmail.com.ORCID 0000-0003-3040-0163
Michaela HauMax Planck Institute for Ornithology, Seewiesen, Germany.ORCID 0000-0002-3836-4083
Simon VerhulstGroningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, The Netherlands.
University of Groningen · NLUniversity of Konstanz · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Variation in glucocorticoid hormones (GCs) is often interpreted as reflecting 'stress', but this interpretation is subject of intense debate. GCs induce gluconeogenesis, and we hypothesized therefore that GC variation can be explained by changes in current and anticipated metabolic rate (MR). Alternatively, GC levels may respond to psychological 'stress' over and above its effect on metabolic rate. We tested these hypotheses in captive zebra finches, by inducing an increase in MR using a psychological stressor (noise), and compared its effect on corticosterone (CORT, the primary avian GC) with the effect induced by a decrease in ambient temperature increasing MR to a similar extent. We found the increase in CORT induced by the psychological stressor to be indistinguishable from the level expected based on the noise effect on MR. We further found that a handling and restraint stressor that increased CORT levels also resulted in increased blood glucose levels, corroborating a key assumption underlying our hypothesis. Thus, GC variation primarily reflected variation in energy expenditure, independently of psychological stress. GC levels have many downstream effects besides glucose mobilization, and we propose that these effects can be interpreted as adjustments of physiological functions to the metabolic level at which an organism operates.

Indexed as

Basal MetabolismEnergy MetabolismStress, PhysiologicalAnimalsAnti-Inflammatory AgentsBlood GlucoseCorticosteroneEnvironmental ExposureFinchesNoiseTemperatureAnti-Inflammatory AgentsBlood GlucoseCorticosterone

Identifiers

PMID30158537
PMCPMC6115469
OpenAlexW2888346896

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.