ArticleAging2020
The association of circulating kynurenine, a tryptophan metabolite, with frailty in older adults.
Article in Aging, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled 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.
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.
Who cites it
29 citing papers in PubMed, 1 synthesis or guideline pooled it, 42 citations in OpenAlex.
- Challenges in Identifying Biomarkers of Frailty Syndrome: A Systematic Review.Medicina (Kaunas, Lithuania) · 2025Pooled it
- Article
- Review
- Higher Circulating Kynurenine Levels Linked to Higher Risk of Sarcopenia in Older Adults: A Cohort Study and UK Biobank Analysis.Endocrinology and metabolism (Seoul, Korea) · 2026Article
- Biomarkers of oxidative damage as a tool to investigate frailty syndrome in older women.npj aging · 2026Article
- Tryptophan metabolites 3-hydroxykynurenine (3HK) and 3-hydroxyanthranilic acid (3HAA) increase oxidative stress and impair osteoblastic bone formation.The Journal of biological chemistry · 2026Article
- Elevating Circulating L-Kynurenine Promotes Frailty in Aging Mice.Journal of cachexia, sarcopenia and muscle · 2026Article
- Picolinic acid, a tryptophan metabolite, exhibits anabolic effects in muscle cells and improves lifespan and movement in C. elegans.The journals of gerontology. Series A, Biological sciences and medical sciences · 2026Article
- Gut microbial characteristics and kynurenine-related metabolism across sarcopenia groups: associations with neuromuscular and physical function.Frontiers in aging neuroscience · 2026Article
- Inhibition of AhR improves cortical bone and skeletal muscle function via preservation of neuromuscular junctions.JCI insight · 2025Article
- Expression of the aryl hydrocarbon receptor in Osterix-lineage cells regulates adult skeletal homeostasis in a compartment-specific manner.JBMR plus · 2025Article
- Serum Proteomic and Metabolomic Signatures of High Versus Low Physical Function in Octogenarians.Aging cell · 2025Article
- Kynurenines and aerobic exercise capacity in chronic kidney disease: A cross-sectional and longitudinal study.PloS one · 2025Article
- The Mediating Role of Kynurenine Pathway Metabolites on the Relationship Between Inflammation and Muscle Mass in Oldest-Old Men.The journals of gerontology. Series A, Biological sciences and medical sciences · 2024Article
- A tryptophan-derived uremic metabolite/Ahr/Pdk4 axis governs skeletal muscle mitochondrial energetics in chronic kidney disease.JCI insight · 2024Article
- Nutrient Metabolites Associated With Low D3Cr Muscle Mass, Strength, and Physical Performance in Older Men.The journals of gerontology. Series A, Biological sciences and medical sciences · 2024Article
- New insights into healthy ageing, inflammageing and frailty using metabolomics.Frontiers in aging · 2024Review
- Plasma acylcarnitine in elderly Taiwanese: as biomarkers of possible sarcopenia and sarcopenia.BMC geriatrics · 2023Article
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- Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors at 4 institutions in 2 countries.
Funding
Abstract
Despite the accumulating evidence from
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.