Evidence map›Paper›PMID 34617415›Full record

ArticleJournal of cachexia, sarcopenia and muscle2021

Changes in systemic GDF15 across the adult lifespan and their impact on maximal muscle power: the Copenhagen Sarcopenia Study.

Julian Alcazar, Ulrik Frandsen, Tatyana Prokhorova, Rikke S Kamper, Bryan Haddock, Per Aagaard, Charlotte Suetta

Open access · goldAbstract read
In one paragraph

Article in Journal of cachexia, sarcopenia and muscle, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed, 1 pooled it
6.6field-weighted citation impact, top 2% 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

45 citing papers in PubMed, 1 synthesis or guideline pooled it, 58 citations in OpenAlex.

  1. Circulating biomarkers in older adults with and without sarcopenia: a systematic review and meta-analysis.The journals of gerontology. Series A, Biological sciences and medical sciences · 2026
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  8. High prevalence of sarcopenia, osteoporosis and osteosarcopenia in patients with chronic kidney disease compared with healthy controls.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2026
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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

7 authors at 3 institutions in 2 countries.

Julian AlcazarGENUD Toledo Research Group, Universidad de Castilla-La Mancha, Toledo, Spain.ORCID 0000-0002-1090-5482
Ulrik FrandsenInstitute of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark.
Tatyana ProkhorovaInstitute of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark.
Rikke S KamperCopenAge - Copenhagen Center for Clinical Age Research, University of Copenhagen, Copenhagen, Denmark.
Bryan HaddockDepartment of Clinical Physiology, Nuclear Medicine & PET, Rigshospitalet University Hospital, Copenhagen, Denmark.
Per AagaardInstitute of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark.ORCID 0000-0002-9773-7361
Charlotte SuettaCopenAge - Copenhagen Center for Clinical Age Research, University of Copenhagen, Copenhagen, Denmark.ORCID 0000-0001-8063-6508
University of Copenhagen · DKUniversity of Southern Denmark · DKCopenhagen University Hospital · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAlthough growth differentiation factor 15 (GDF15) is known to increase with disease and is associated with low physical performance, the role of GDF15 in normal ageing is still not fully understood. Specifically, the influence of circulating GDF15 on impairments in maximal muscle power (a major contributor to functional limitations) and the underlying components has not been investigated.

methodsData from 1305 healthy women and men aged 20 to 93 years from The Copenhagen Sarcopenia Study were analysed. Circulating levels of GDF15 and markers of inflammation (tumor necrosis factor-alpha, interleukin-6, and high-sensitivity C-reactive protein) were measured by ELISA (R&D Systems) and multiplex bead-based immunoassays (Bio-Rad). Relative (normalized to body mass), allometric (normalized to height squared), and specific (normalized to leg muscle mass) muscle power were assessed by the Nottingham power rig [leg extension power (LEP)] and the 30 s sit-to-stand (STS) muscle power test. Total body fat, visceral fat, and leg lean mass were assessed by dual energy X-ray absorptiometry. Leg skeletal muscle index was measured as leg lean mass normalized to body height squared.

resultsSystemic levels of GDF15 increased progressively as a function of age in women (1.1 ± 0.4 pg·mL

conclusionsA J-shaped relationship between age and systemic GDF15 was observed, with men at older age showing steeper increases and elevated GDF15 levels compared with women. Importantly, circulating GDF15 was independently and negatively associated with relative STS power, supporting the potential role of GDF15 as a sensitive biomarker of frailty in older people.

Indexed as

SarcopeniaAdultAgedAgingFemaleGrowth Differentiation Factor 15HumansLongevityMaleMuscle, SkeletalMuscle StrengthGDF15 protein, humanGrowth Differentiation Factor 15FrailtyGrowth differentiation factor 15Leg extension powerSarcopeniaSit-to-stand

Identifiers

PMID34617415
PMCPMC8718085
OpenAlexW3204271065

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.