Evidence map›Paper›PMID 30113520›Full record

ArticleMedicine and science in sports and exercise2019

ESR1 rs2234693 Polymorphism Is Associated with Muscle Injury and Muscle Stiffness.

Hiroshi Kumagai, Eri Miyamoto-Mikami, Kosuke Hirata, Naoki Kikuchi, Nobuhiro Kamiya, Seigo Hoshikawa, Hirofumi Zempo, Hisashi Naito, Naokazu Miyamoto, Noriyuki Fuku

Abstract read
In one paragraph

Article in Medicine and science in sports and exercise, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 3 pooled it
5.0field-weighted citation impact, top 4% 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

36 citing papers in PubMed, 3 syntheses or guidelines pooled it, 70 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. IsGenes · 2022
    Pooled it
  4. Trial
  5. Trial
  6. Trial
  7. Article
  8. Review
  9. Article
  10. Article
  11. Relationship Between Thiopurine S-Methyltransferase Genotype and Phenotype in Pediatric Acute Lymphoblastic Leukemia in Addis Ababa, Ethiopia.The journal of pediatric pharmacology and therapeutics : JPPT : the official journal of PPAG · 2025
    Article
  12. Article
  13. Medicina (Kaunas, Lithuania) · 2025
    Article
  14. Article
  15. Article
  16. [Genetics in sports-muscle injuries].Orthopadie (Heidelberg, Germany) · 2023
    Review
  17. Review
  18. Article
  19. Review
  20. Article
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

10 authors at 7 institutions in 1 country.

Hiroshi KumagaiGraduate School of Health and Sports Science, Juntendo University, Chiba, JAPAN.
Eri Miyamoto-MikamiGraduate School of Health and Sports Science, Juntendo University, Chiba, JAPAN.
Kosuke HirataDepartment of Sports and Life Science, National Institute of Fitness and Sports in Kanoya, Kagoshima, JAPAN.
Naoki KikuchiDepartment of Training Science, Nippon Sport Science University, Tokyo, JAPAN.
Nobuhiro KamiyaFaculty of Budo and Sport Studies, Tenri University, Nara, JAPAN.
Seigo HoshikawaGraduate School of Health and Sports Science, Juntendo University, Chiba, JAPAN.
Hirofumi ZempoFaculty of Health and Nutrition, Tokyo Seiei College, Tokyo, JAPAN.
Hisashi NaitoGraduate School of Health and Sports Science, Juntendo University, Chiba, JAPAN.
Naokazu MiyamotoDepartment of Sports and Life Science, National Institute of Fitness and Sports in Kanoya, Kagoshima, JAPAN.
Noriyuki FukuGraduate School of Health and Sports Science, Juntendo University, Chiba, JAPAN.
Juntendo University · JPNational Institute of Fitness and Sports in Kanoya · JPEdogawa University · JPJapan Society for the Promotion of Science · JPNippon Sport Science University · JPTenri University · JPTokyo Seiei College · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeMuscle injury is the most common sports injury. Muscle stiffness, a risk factor for muscle injury, is lower in females than in males, implying that sex-related genetic polymorphisms influence muscle injury associated with muscle stiffness. The present study aimed to clarify the associations between two genetic polymorphisms (rs2234693 and rs9340799) in the estrogen receptor 1 gene (ESR1) and muscle injury or muscle stiffness.

methodsIn study 1, a questionnaire was used to assess the muscle injury history of 1311 Japanese top-level athletes. In study 2, stiffness of the hamstring muscles was assessed using ultrasound shear wave elastography in 261 physically active young adults. In both studies, rs2234693 C/T and rs9340799 G/A polymorphisms in the ESR1 were analyzed using the TaqMan SNP Genotyping Assay.

resultsIn study 1, genotype frequencies for ESR1 rs2234693 C/T were significantly different between the injured and noninjured groups in a C-allele dominant (CC + CT vs TT: odds ratio, 0.62; 95% confidence interval, 0.43-0.91) and additive (CC vs CT vs TT: odds ratio, 0.70; 95% confidence interval, 0.53-0.91) model in all athletes. In study 2, hamstring muscle stiffness was lower in subjects with the CC + CT genotype than in those with the TT genotype; a significant linear trend (CC < CT < TT) was found (r = 0.135, P = 0.029). In contrast, no associations were observed between ESR1 rs9340799 G/A and muscle injury or stiffness.

conclusionsOur results suggest that the ESR1 rs2234693 C allele, in contrast to the T allele, provides protection against muscle injury by lowering muscle stiffness.

Indexed as

Polymorphism, Single NucleotideAllelesAthletic InjuriesCross-Sectional StudiesElasticity Imaging TechniquesEstrogen Receptor alphaFemaleGenotypeHamstring MusclesHumansMaleMuscle, SkeletalMuscle TonusRisk FactorsYoung AdultESR1 protein, humanEstrogen Receptor alpha

Identifiers

PMID30113520
PMCPMC6310456
OpenAlexW2885203971

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.