Evidence map›Paper›PMID 30444453›Full record

ArticlePhysiological genomics2019

Aging, melatonin biosynthesis, and circadian clockworks in the gastrointestinal system of the laboratory mouse.

Jiffin K Paulose, Charles V Cassone, Vincent M Cassone

Open access · bronzeAbstract read
In one paragraph

Article in Physiological genomics, 2019. 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
1.0field-weighted citation impact, top 26% 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

14 citing papers in PubMed, 22 citations in OpenAlex.

  1. Review
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  3. Frontiers in neuroscience · 2025
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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 1 institution in 1 country.

Jiffin K PauloseDepartment of Biology, University of Kentucky , Lexington, Kentucky.
Charles V CassoneDepartment of Biology, University of Kentucky , Lexington, Kentucky.
Vincent M CassoneDepartment of Biology, University of Kentucky , Lexington, Kentucky.
University of Kentucky · US

Funding

Circadian rhythms and melatonin signaling in the aging gastrointestinal systemR01AG045833 · NIA · UNIVERSITY OF KENTUCKY · PI CASSONE, VINCENT M · 2013 to 2016
$1.0M
NIA NIH HHS R01 AG045833
6 · The paper itself

Abstract

The gastrointestinal (GI) system is vital in its capacities for nutrient and water uptake, immune function, metabolism and detoxification, and stem-cell derived regeneration. Of significance to human health are a myriad of GI disorders associated with aging that integrate with the circadian clock. Here we present data from three groups of mice: young (3 mo old), middle aged (12 mo old), and old aged (24 mo old). Small intestine and colon samples taken every 4 h under light-dark (LD) conditions were assayed for gene expression related to molecular circadian rhythmicity, transcription, cell signaling, and immune function. Transcripts related to melatonin biosynthesis and signaling, as well as melatonin content from stool, were also included, as GI melatonin and aging have been associated in contexts outside of the circadian clock. With respect to circadian genes, the data here are congruent with data from other peripheral tissues: age does not affect the rhythmic expression of core clock genes in the gut. The same can be said for several clock-controlled transcripts. In contrast, diurnal patterns in the expression of nitric oxide synthase 1 and of immune factors irak4 and interleukin-8 were observed in the colon of young mice that were lost in middle-aged and aged animals. Furthermore, the diurnal pattern of melatonin synthesis genes was altered by age, and stool melatonin levels showed significant decline between young mice and aged cohorts. These data expand the evidence for the persistence of the circadian clock throughout the aging process and highlight its importance to health.

Indexed as

AgingAnimalsArylalkylamine N-AcetyltransferaseAutophagy-Related ProteinsCircadian ClocksCircadian RhythmCLOCK ProteinsCohort StudiesFecesGastrointestinal TractGene ExpressionInterleukin-1 Receptor-Associated KinasesInterleukin-8MelatoninMiceMice, Inbred CBAArylalkylamine N-AcetyltransferaseAtg16l1 protein, mouseAutophagy-Related ProteinsClock protein, mouseCLOCK ProteinsInterleukin-1 Receptor-Associated KinasesInterleukin-8Irak4 protein, mouseMelatoninNitric Oxide Synthase Type INos1 protein, mouseReceptor, Melatonin, MT1Receptor, Melatonin, MT2RNA, MessengerTranscription Factorsagingcircadiangastrointestinalmelatonin

Identifiers

PMID30444453
PMCPMC6383550
OpenAlexW2900987124

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.