Evidence map›Paper›PMID 26339535›Full record

ArticlePeerJ2015

Constant illumination reduces circulating melatonin and impairs immune function in the cricket Teleogryllus commodus.

Joanna Durrant, Ellie B Michaelides, Thusitha Rupasinghe, Dedreia Tull, Mark P Green, Therésa M Jones

Open access · goldAbstract read
In one paragraph

Article in PeerJ, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.9field-weighted citation impact, top 17% 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

15 citing papers in PubMed, 55 citations in OpenAlex.

  1. Article
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  6. Crickets in the spotlight: exploring the impact of light on circadian behavior.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2024
    Review
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  8. Review
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  11. Animals : an open access journal from MDPI · 2021
    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

6 authors at 2 institutions in 1 country.

Joanna DurrantSchool of BioSciences, The University of Melbourne , Melbourne, Victoria , Australia.
Ellie B MichaelidesSchool of BioSciences, The University of Melbourne , Melbourne, Victoria , Australia.
Thusitha RupasingheMetabolomics Australia, Bio21 Institute, The University of Melbourne , Melbourne, Victoria , Australia.
Dedreia TullMetabolomics Australia, Bio21 Institute, The University of Melbourne , Melbourne, Victoria , Australia.
Mark P GreenSchool of BioSciences, The University of Melbourne , Melbourne, Victoria , Australia.
Therésa M JonesSchool of BioSciences, The University of Melbourne , Melbourne, Victoria , Australia.
University of Melbourne · AUMelbourne Genomics Health Alliance · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Exposure to constant light has a range of negative effects on behaviour and physiology, including reduced immune function in both vertebrates and invertebrates. It is proposed that the associated suppression of melatonin (a ubiquitous hormone and powerful antioxidant) in response to the presence of light at night could be an underlying mechanistic link driving the changes to immune function. Here, we investigated the relationship between constant illumination, melatonin and immune function, using a model invertebrate species, the Australian black field cricket, Teleogryllus commodus. Crickets were reared under either a 12 h light: 12 h dark regimen or a constant 24 h light regimen. Circulating melatonin concentration and immune function (haemocyte concentration, lytic activity and phenoloxidase (PO) activity) were assessed in individual adult crickets through the analysis of haemolymph. Constant illumination reduced melatonin and had a negative impact on haemocyte concentrations and lytic activity, but its effect on PO activity was less apparent. Our data provide the first evidence, to our knowledge, of a link between exposure to constant illumination and variation in haemocyte concentration in an invertebrate model, while also highlighting the potential complexity of the immune response following exposure to constant illumination. This study provides insight into the possible negative effect of artificial night-time lighting on the physiology of invertebrates, but whether lower and potentially more ecologically relevant levels of light at night produce comparable results, as has been reported in several vertebrate taxa, remains to be tested.

Indexed as

Circadian rhythmConstant illuminationEcological light pollutionImmune functionInvertebrateLight at nightLysozyme-like activityMelatonin

Identifiers

PMID26339535
PMCPMC4558066
OpenAlexW1631638569

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.