Evidence map›Paper›PMID 24000893›Full record

ArticleBMC musculoskeletal disorders2013

An inverted J-shaped association of serum uric acid with muscle strength among Japanese adult men: a cross-sectional study.

Cong Huang, Kaijun Niu, Yoritoshi Kobayashi, Lei Guan, Haruki Momma, Yufei Cui, Masahiro Chujo, Atsushi Otomo, Hui Guo, Hiroko Tadaura and 1 more

Open access · goldAbstract readComparative Study
In one paragraph

Article in BMC musculoskeletal disorders, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
1.1field-weighted citation impact, top 24% 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

35 citing papers in PubMed, 75 citations in OpenAlex.

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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

11 authors at 2 institutions in 2 countries.

Cong HuangDepartment of Medicine and Science in Sports and Exercise, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan. nagatomi@med.tohoku.ac.jp.
Kaijun Niu
Yoritoshi Kobayashi
Lei Guan
Haruki Momma
Yufei Cui
Masahiro Chujo
Atsushi Otomo
Hui Guo
Hiroko Tadaura
Ryoichi Nagatomi
Tohoku University · JPTianjin Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundUric acid (UA) may protect muscle function from oxidative damage due to reactive oxygen species through its powerful antioxidant capacity. However, several studies have demonstrated that hyperuricemia is closely related to systemic inflammation and has oxidant properties effects, both of which may increase the risk of muscle strength loss. The purpose of this study was to examine the association of serum UA concentration with grip strength and leg extension power in adult men.

methodsThis study is a cross-sectional survey in which 630 Japanese male employees aged 30 years and older participated. Five hundred and eighty-six subjects participated in the measurement of grip strength, and 355 subjects participated in the measurement of leg extension power. Blood samples were obtained for serum UA analysis.

resultsAfter adjustment for potential confounders, grip strength differed significantly between participants with and those without hyperuricemia (geometric mean and 95% confidence interval [CI]: 40.3 [39.2-41.3] kg vs. 41.9 [41.3-42.5] kg; P = 0.01). In addition, serum UA levels (quartiles) showed an inverted J-shaped curve with grip strength (mean and 95% CI: Q1, 41.6 [40.6-42.6] kg; Q2, 42.2 [41.2-43.2] kg; Q3, 41.8 [40.8-42.8] kg; Q4, 40.4 [39.3-41.4] kg; P for quadratic trend = 0.05). The results in the leg extension power group were similar to those observed in the grip strength group.

conclusionThis population-based cross-sectional study shows for the first time that hyperuricemia is associated with poor muscle strength. Moreover, the results indicate an inverted J-shaped association between serum UA quartiles and muscle strength.

Indexed as

Muscle StrengthAdultAge FactorsAsian PeopleBiomarkersCross-Sectional StudiesHand StrengthHumansHyperuricemiaJapanMaleMiddle AgedMuscle, SkeletalRisk FactorsSex FactorsUric AcidBiomarkersUric Acid

Identifiers

PMID24000893
PMCPMC3766665
OpenAlexW2024230762

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.