Evidence map›Paper›PMID 31786316›Full record

ReviewExperimental gerontology2020

Kynurenine signaling through the aryl hydrocarbon receptor: Implications for aging and healthspan.

Helen Kaiser, Emily Parker, Mark W Hamrick

Open access · greenAbstract readReview
In one paragraph

Review in Experimental gerontology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed
2.2field-weighted citation impact, top 12% 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

65 citing papers in PubMed, 85 citations in OpenAlex.

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5 more citing papers are in PubMed but not listed here.

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.

Helen KaiserMedical College of Georgia, Augusta University, Augusta, GA 30912, USA. Electronic address: hkaiser@augusta.edu.
Emily ParkerMedical College of Georgia, Augusta University, Augusta, GA 30912, USA. Electronic address: emparker1@augusta.edu.
Mark W HamrickMedical College of Georgia, Augusta University, Augusta, GA 30912, USA. Electronic address: mhamrick@augusta.edu.
Augusta University · US

Funding

THE LEPTIN-IGF1 AXIS IN MUSCULOSKELETAL AGINGP01AG036675 · NIA · AUGUSTA UNIVERSITY · PI Meghan E. McGee-Lawrence · 2011 to 2026
$31.5M
NIA NIH HHS P01 AG036675
6 · The paper itself

Abstract

The tryptophan metabolite kynurenine increases with aging and inflammation, and appears to contribute directly to the development and progression of several age-related conditions. Kynurenine is now known to signal through the aryl hydrocarbon receptor (Ahr) to modulate levels of reactive oxygen species (ROS). The Ahr promoter region contains several sites for NF-kB binding, indicating that inflammation is a key factor modulating Ahr expression. Furthermore, kynurenine activation of Ahr is observed to stimulate expression of the enzyme IDO1, which generates kynurenine by degrading tryptophan, representing a positive feedback loop that may link inflammation with ROS production. On the other hand, the antioxidant system-inducing transcription factor Nrf2 can be stimulated by Ahr, and Nrf2 can itself activate Ahr expression. The balance between pro- and antioxidant functions of Ahr mediated by kynurenine may therefore regulate healthy versus unhealthy aging in different tissues and organ systems. Potential therapeutic approaches to target this pathway include exercise to alter kynurenine production or molecules such as metformin or resveratrol that may suppress Ahr activity.

Indexed as

LongevityAgingAnimalsBasic Helix-Loop-Helix ProteinsHumansInflammationKynurenineMiceReactive Oxygen SpeciesReceptors, Aryl HydrocarbonSignal TransductionTryptophanAHR protein, humanBasic Helix-Loop-Helix ProteinsKynurenineReactive Oxygen SpeciesReceptors, Aryl HydrocarbonTryptophanInflammagingNrf2Reactive oxygen speciesSLC7A5

Identifiers

PMID31786316
PMCPMC7899131
OpenAlexW2990281329

What OpenQuestion holds

Textmetadata
LicenceTDM
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.