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Fukuyama Y, Murakami H, Iemitsu M. Single Nucleotide Polymorphisms and Tendon/Ligament Injuries in Athletes: A Systematic Review and Meta-analysis. Int J Sports Med 2025; 46:3-21. [PMID: 39437988 DOI: 10.1055/a-2419-4359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2024]
Abstract
This systematic review and meta-analysis aimed to identify the association between genetic polymorphisms and tendon and ligament injuries in adolescent and adult athletes of multiple competition sports. The PubMed, Web of Science, EBSCO, Cochrane Library, and MEDLINE databases were searched until July 7, 2023. Eligible articles included genetic studies on tendon and ligament injuries and comparisons between injured and non-injured athletes. This review included 31 articles, comprising 1,687 injury cases and 2,227 controls, from a meta-analysis of 12 articles. We identified 144 candidate gene polymorphisms (only single nucleotide polymorphisms were identified). The meta-analyses included vascular endothelial growth factor A (VEGFA) rs699947, collagen type I alpha 1 rs1800012, collagen type V alpha 1 rs12722, and matrix metalloproteinase 3 rs679620. The VEGFA rs699947 polymorphism showed a lower risk of injuries in athletes with the C allele ([C vs. A]: OR=0.80, 95% CI: 0.65-0.98, I 2 =3.82%, p=0.03). The risk of these injuries were not affected by other polymorphisms. In conclusion, the VEGFA rs699947 polymorphism is associated with the risk of tendon and ligament injuries in athletes. This study provides insights into genetic variations that contribute to our understanding of the risk factors for such injuries in athletes.
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Affiliation(s)
- Yumi Fukuyama
- Department of Physical Therapy, Aino University, Ibaraki, Japan
- Faculty of Sport and Health Science, Ritsumeikan University, Kusatsu, Japan
| | - Haruka Murakami
- Faculty of Sport and Health Science, Ritsumeikan University, Kusatsu, Japan
| | - Motoyuki Iemitsu
- Faculty of Sport and Health Science, Ritsumeikan University, Kusatsu, Japan
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Yanik EL, Saccone NL, Aleem AW, Chamberlain AM, Zmistowski B, Sefko JA, Keener JD. Factors associated with genetic markers for rotator cuff disease in patients with atraumatic rotator cuff tears. J Orthop Res 2024; 42:934-941. [PMID: 38041210 PMCID: PMC11009082 DOI: 10.1002/jor.25754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 11/06/2023] [Accepted: 11/29/2023] [Indexed: 12/03/2023]
Abstract
For atraumatic rotator cuff tears, genetics contributes to symptomatic tear risk and may influence rotator cuff healing after surgical repair. But little is known about how genetic factors influence rotator cuff tear patient characteristics at presentation. We collected saliva samples for genotyping from atraumatic rotator cuff tear patients. We examined nine single nucleotide polymorphisms (SNPs) associated with cuff tears in prior literature. We estimated associations of SNP dosage with (1) age at tear diagnosis, (2) bilateral atraumatic tear prevalence, and (3) tear size. Linear regression was used to estimate associations with diagnosis age adjusted for sex and principal components. Logistic regression and ordinal logistic regression were used to estimate associations with bilateral tear prevalence and tear size category, respectively, adjusting for age, sex, and principal components. Of 344 eligible patients, 336 provided sufficient samples for genotyping. Median age at tear diagnosis was 61, 22% (N = 74) had bilateral atraumatic tears, and 9% (N = 29) had massive tears. SNP rs13107325 in the SLC39A8 gene and rs11850957 in the STXBP6 gene were associated with younger diagnosis age even after accounting for multiple comparisons (rs13107325: -4 years, 95% CI = -6.5, -1.4; rs11850957: -2.7 years, 95% CI = -4.3, -1.1). No other significant associations were observed with diagnosis age, tear size, or bilateral tear prevalence. SLC39A8 encodes a Mn transporter. STXBP6 may play a role in inflammatory responses by altering phagocytosis and antigen presentation of monocytes and macrophages. Further research is needed to determine if genetic markers can be used alongside patient characteristics to aid in identifying optimal surgical repair candidates.
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Affiliation(s)
- Elizabeth L. Yanik
- Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, MO
| | - Nancy L. Saccone
- Department of Genetics, Washington University School of Medicine, St. Louis, MO
| | - Alexander W. Aleem
- Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, MO
| | - Aaron M. Chamberlain
- Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, MO
| | - Benjamin Zmistowski
- Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, MO
| | - Julianne A. Sefko
- Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, MO
| | - Jay D. Keener
- Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, MO
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Alakhdar Y, Cook J, Gallego D, Querol F, Chulvi-Medrano I, Alberola A, Hernández-Sánchez S. Association Between COL5a1, COL11a1, and COL11a2 Gene Variations and Rotator Cuff Tendinopathy in Young Athletes. Clin J Sport Med 2023; 33:e152-e156. [PMID: 34009784 DOI: 10.1097/jsm.0000000000000937] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Accepted: 03/25/2021] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Tendinopathy is a prevalent condition in young athletes and in older nonathletic people. Recent tendinopathy research has shown a growing interest in the role played by genetic factors, basically genes involved in collagen synthesis and regulation, in view of collagen disorganization typically present in tendon pathologies. DESIGN A case-control, genotype-phenotype association study. SETTING La Ribera Hospital, Valencia, Spain. PARTICIPANTS A group of 137 young athletes (49 with rotator cuff tendon pathology and 88 healthy counterparts) who played upper-limb-loading sports were clinically and ultrasound (US) assessed for rotator cuff tendinopathy were included. INTERVENTION Genetic analysis was performed to determine whether there was a relationship between rotator cuff pathology and the genotype. MAIN OUTCOME MEASURES We hypothesized that the following single nucleotide polymorphisms: COL5a1 rs12722, COL11a1 rs3753841, COL11a1 rs1676486, and COL11a2 rs1799907 would be associated with rotator cuff tendinopathy. RESULTS A direct relationship between CC genotype and bilateral US pathological images was statistically significant (χ 2 = 0.0051) and confirmed by the Fisher test, with a correlation coefficient of 0.345 and a Cramer's v of 0.26. CONCLUSION A significant association was found between COL5a1 rs12722 genotype and rotator cuff pathology, with the CC genotype conferring increased risk of tendon abnormalities and being associated with rotator cuff pathology.
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Affiliation(s)
- Yasser Alakhdar
- Department of Physiotherapy, University of Valencia, Valencia, Spain
| | - Jill Cook
- La Trobe Sport and Exercise Medicine Research Centre, Faculty of Health Science, La Trobe University, Victoria, Australia
| | - Diana Gallego
- Department of Physiotherapy, Faculty of Health, European University, Valencia, Spain
| | - Felipe Querol
- Department of Physiotherapy, University of Valencia, Valencia, Spain
| | - Iván Chulvi-Medrano
- Physical and Sports Education Department, Faculty of Physical Activity and Sport Sciences, University of Valencia, Valencia, Spain
| | - Antonio Alberola
- Department of Physiology, University de Valencia, Valencia, Spain ; and
| | - Sergio Hernández-Sánchez
- Center for Translational Research in Physiotherapy, Department of Pathology and Surgery, Physiotherapy Area, Miguel Hernandez University, San Juan, Alicante, Spain
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Chen Z, Chen P, Zheng M, Gao J, Liu D, Wang A, Zheng Q, Leys T, Tai A, Zheng M. Challenges and perspectives of tendon-derived cell therapy for tendinopathy: from bench to bedside. Stem Cell Res Ther 2022; 13:444. [PMID: 36056395 PMCID: PMC9438319 DOI: 10.1186/s13287-022-03113-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 08/03/2022] [Indexed: 11/18/2022] Open
Abstract
Tendon is composed of dense fibrous connective tissues, connecting muscle at the myotendinous junction (MTJ) to bone at the enthesis and allowing mechanical force to transmit from muscle to bone. Tendon diseases occur at different zones of the tendon, including enthesis, MTJ and midsubstance of the tendon, due to a variety of environmental and genetic factors which consequently result in different frequencies and recovery rates. Self-healing properties of tendons are limited, and cell therapeutic approaches in which injured tendon tissues are renewed by cell replenishment are highly sought after. Homologous use of individual’s tendon-derived cells, predominantly differentiated tenocytes and tendon-derived stem cells, is emerging as a treatment for tendinopathy through achieving minimal cell manipulation for clinical use. This is the first review summarizing the progress of tendon-derived cell therapy in clinical use and its challenges due to the structural complexity of tendons, heterogeneous composition of extracellular cell matrix and cells and unsuitable cell sources. Further to that, novel future perspectives to improve therapeutic effect in tendon-derived cell therapy based on current basic knowledge are discussed.
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Affiliation(s)
- Ziming Chen
- Division of Surgery, Centre for Orthopaedic Research, Medical School, The University of Western Australia, Nedlands, WA, 6009, Australia
| | - Peilin Chen
- Division of Surgery, Centre for Orthopaedic Research, Medical School, The University of Western Australia, Nedlands, WA, 6009, Australia
| | - Monica Zheng
- Department of Orthopaedic Surgery, Sir Charles Gairdner Hospital, Nedlands, WA, 6009, Australia
| | - Junjie Gao
- Perron Institute for Neurological and Translational Science, Nedlands, WA, 6009, Australia.,Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Shanghai Sixth People's Hospital, Shanghai, 200233, China
| | - Delin Liu
- Division of Surgery, Centre for Orthopaedic Research, Medical School, The University of Western Australia, Nedlands, WA, 6009, Australia.,Perron Institute for Neurological and Translational Science, Nedlands, WA, 6009, Australia
| | - Allan Wang
- Division of Surgery, Centre for Orthopaedic Research, Medical School, The University of Western Australia, Nedlands, WA, 6009, Australia
| | - Qiujian Zheng
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510000, Guangdong, China.,Department of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510000, Guangdong, China
| | - Toby Leys
- Department of Orthopaedic Surgery, Sir Charles Gairdner Hospital, Nedlands, WA, 6009, Australia
| | - Andrew Tai
- Perron Institute for Neurological and Translational Science, Nedlands, WA, 6009, Australia.
| | - Minghao Zheng
- Division of Surgery, Centre for Orthopaedic Research, Medical School, The University of Western Australia, Nedlands, WA, 6009, Australia. .,Perron Institute for Neurological and Translational Science, Nedlands, WA, 6009, Australia.
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Ribbans WJ, September AV, Collins M. Tendon and Ligament Genetics: How Do They Contribute to Disease and Injury? A Narrative Review. Life (Basel) 2022; 12:life12050663. [PMID: 35629331 PMCID: PMC9147569 DOI: 10.3390/life12050663] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 04/24/2022] [Accepted: 04/26/2022] [Indexed: 12/15/2022] Open
Abstract
A significant proportion of patients requiring musculoskeletal management present with tendon and ligament pathology. Our understanding of the intrinsic and extrinsic mechanisms that lead to such disabilities is increasing. However, the complexity underpinning these interactive multifactorial elements is still not fully characterised. Evidence highlighting the genetic components, either reducing or increasing susceptibility to injury, is increasing. This review examines the present understanding of the role genetic variations contribute to tendon and ligament injury risk. It examines the different elements of tendon and ligament structure and considers our knowledge of genetic influence on form, function, ability to withstand load, and undertake repair or regeneration. The role of epigenetic factors in modifying gene expression in these structures is also explored. It considers the challenges to interpreting present knowledge, the requirements, and likely pathways for future research, and whether such information has reached the point of clinical utility.
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Affiliation(s)
- William J. Ribbans
- School of Health, The University of Northampton, Northampton NN1 5PH, UK
- The County Clinic, Northampton NN1 5DB, UK
- Correspondence: ; Tel.: +44-1604-795414
| | - Alison V. September
- Division of Physiological Sciences, Department of Human Biology, Health Sciences Faculty, University of Cape Town, Cape Town 7700, South Africa; (A.V.S.); (M.C.)
- Health Through Physical Activity, Lifestyle and Sport Research Centre (HPALS), Department of Human Biology, Health Sciences Faculty, University of Cape Town, Cape Town 7700, South Africa
- International Federation of Sports Medicine (FIMS), Collaborative Centre of Sports Medicine, Department of Human Biology, University of Cape Town, Cape Town 7700, South Africa
| | - Malcolm Collins
- Division of Physiological Sciences, Department of Human Biology, Health Sciences Faculty, University of Cape Town, Cape Town 7700, South Africa; (A.V.S.); (M.C.)
- Health Through Physical Activity, Lifestyle and Sport Research Centre (HPALS), Department of Human Biology, Health Sciences Faculty, University of Cape Town, Cape Town 7700, South Africa
- International Federation of Sports Medicine (FIMS), Collaborative Centre of Sports Medicine, Department of Human Biology, University of Cape Town, Cape Town 7700, South Africa
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Griswold AJ, Correa D, Kaplan LD, Best TM. Using Genomic Techniques in Sports and Exercise Science: Current Status and Future Opportunities. Curr Sports Med Rep 2021; 20:617-623. [PMID: 34752437 DOI: 10.1249/jsr.0000000000000908] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
ABSTRACT The past two decades have built on the successes of the Human Genome Project identifying the impact of genetics and genomics on human traits. Given the importance of exercise in the physical and psychological health of individuals across the lifespan, using genomics to understand the impact of genes in the sports medicine field is an emerging field. Given the complexity of the systems involved, high-throughput genomics is required to understand genetic variants, their functions, and ultimately their effect on the body. Consequently, genomic studies have been performed across several domains of sports medicine with varying degrees of success. While the breadth of these is great, they focus largely on the following three areas: 1) performance; 2) injury susceptibility; and 3) sports associated chronic conditions, such as osteoarthritis. Herein, we review literature on genetics and genomics in sports medicine, offer suggestions to bolster existing studies, and suggest ways to ideally impact clinical care.
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Affiliation(s)
| | | | - Lee D Kaplan
- Department of Orthopedic Surgery, UHealth Sports Medicine Institute, University of Miami, Miller School of Medicine, Miami, FL
| | - Thomas M Best
- Department of Orthopedic Surgery, UHealth Sports Medicine Institute, University of Miami, Miller School of Medicine, Miami, FL
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7
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Kim SK, Nguyen C, Horton BH, Avins AL, Abrams GD. Association of COA1 with Patellar Tendonitis: A Genome-wide Association Analysis. Med Sci Sports Exerc 2021; 53:2419-2424. [PMID: 34081057 DOI: 10.1249/mss.0000000000002710] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PURPOSE It is unknown why some athletes develop patellar tendinopathy and others do not, even when accounting for similar workloads between individuals. Genetic differences between these two populations may be a contributing factor. The purpose of this work was to screen the entire genome for genetic markers associated with patellar tendinopathy. METHODS Genome-wide association (GWA) analyses were performed utilizing data from the Kaiser Permanente Research Board (KPRB) and the UK Biobank. Patellar tendinopathy cases were identified based on electronic health records from KPRB and UK Biobank. GWA analyses from both cohorts were tested for patellar tendinopathy using a logistic regression model adjusting for sex, height, weight, age, and race/ethnicity using allele counts for single nucleotide polymorphisms. The data from the two GWA studies (KPRB and UK Biobank) were combined in a meta-analysis. RESULTS There were a total of 1670 cases of patellar tendinopathy and 293,866 controls within the two cohorts. Two single nucleotide polymorphisms located in the intron of the cytochrome c oxidase assembly factor 1 (COA1) gene showed a genome-wide significant association in the meta-analysis. CONCLUSIONS Genetic markers in COA1 seem to be associated with patellar tendinopathy and are potential risk factors for patellar tendinopathy that deserve further validation regarding molecular mechanisms.
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Affiliation(s)
- Stuart K Kim
- Department of Developmental Biology, Stanford University School of Medicine, Stanford, CA
| | - Condor Nguyen
- Department of Developmental Biology, Stanford University School of Medicine, Stanford, CA
| | - Brandon H Horton
- Kaiser Permanente Northern California, Division of Research, Oakland, CA
| | - Andrew L Avins
- Kaiser Permanente Northern California, Division of Research, Oakland, CA
| | - Geoffrey D Abrams
- Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, CA
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Tendon and multiomics: advantages, advances, and opportunities. NPJ Regen Med 2021; 6:61. [PMID: 34599188 PMCID: PMC8486786 DOI: 10.1038/s41536-021-00168-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 09/01/2021] [Indexed: 02/08/2023] Open
Abstract
Tendons heal by fibrosis, which hinders function and increases re-injury risk. Yet the biology that leads to degeneration and regeneration of tendons is not completely understood. Improved understanding of the metabolic nuances that cause diverse outcomes in tendinopathies is required to solve these problems. 'Omics methods are increasingly used to characterize phenotypes in tissues. Multiomics integrates 'omic datasets to identify coherent relationships and provide insight into differences in molecular and metabolic pathways between anatomic locations, and disease stages. This work reviews the current literature pertaining to multiomics in tendon and the potential of these platforms to improve tendon regeneration. We assessed the literature and identified areas where 'omics platforms contribute to the field: (1) Tendon biology where their hierarchical complexity and demographic factors are studied. (2) Tendon degeneration and healing, where comparisons across tendon pathologies are analyzed. (3) The in vitro engineered tendon phenotype, where we compare the engineered phenotype to relevant native tissues. (4) Finally, we review regenerative and therapeutic approaches. We identified gaps in current knowledge and opportunities for future study: (1) The need to increase the diversity of human subjects and cell sources. (2) Opportunities to improve understanding of tendon heterogeneity. (3) The need to use these improvements to inform new engineered and regenerative therapeutic approaches. (4) The need to increase understanding of the development of tendon pathology. Together, the expanding use of various 'omics platforms and data analysis resulting from these platforms could substantially contribute to major advances in the tendon tissue engineering and regenerative medicine field.
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Kim SK, Nguyen C, Avins AL, Abrams GD. Identification of Three Loci Associated with Achilles Tendon Injury Risk from a Genome-wide Association Study. Med Sci Sports Exerc 2021; 53:1748-1755. [PMID: 33606446 PMCID: PMC8282631 DOI: 10.1249/mss.0000000000002622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PURPOSE This study aimed to screen the entire genome for genetic markers associated with risk for Achilles tendon injury. METHODS A genome-wide association analysis was performed using data from the Kaiser Permanente Research Board and the UK Biobank. Achilles tendon injury cases were identified based on electronic health records from the Kaiser Permanente Research Board databank and the UK Biobank from individuals of European ancestry. Genome-wide association analyses from both cohorts were tested for Achilles tendon injury using a logistic regression model adjusting for sex, height, weight, and race/ethnicity using allele counts for single nucleotide polymorphisms (SNP). Previously identified genes within the literature were also tested for association with Achilles tendon injury. RESULTS There were a total of 12,354 cases of Achilles tendon injury and 483,080 controls within the two combined cohorts, with 67 SNP in three chromosomal loci demonstrating a genome-wide significant association with Achilles tendon injury. The first locus contains a single SNP (rs183364169) near the CDCP1 and TMEM158 genes on chromosome 3. The second locus contains 65 SNP in three independently segregating sets near the MPP7 gene on chromosome 10. The last locus contains a single SNP (rs4454832) near the SOX21 and GPR180 genes on chromosome 13. The current data were used to test 14 candidate genes previously reported to show an association with Achilles tendon injury, but none showed a significant association (all P > 0.05). CONCLUSION Three loci were identified as potential risk factors for Achilles tendon injury and deserve further validation and investigation of molecular mechanisms.
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Affiliation(s)
- Stuart K. Kim
- Department of Developmental Biology, Stanford University Medical School, Stanford, CA
| | - Condor Nguyen
- Department of Developmental Biology, Stanford University Medical School, Stanford, CA
| | - Andy L. Avins
- Kaiser Permanente Northern California, Division of Research, Oakland, CA
| | - Geoffrey D. Abrams
- Department of Orthopaedic Surgery, Stanford University Medical Center, Stanford, CA
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Appel M, Zentgraf K, Krüger K, Alack K. Effects of Genetic Variation on Endurance Performance, Muscle Strength, and Injury Susceptibility in Sports: A Systematic Review. Front Physiol 2021; 12:694411. [PMID: 34366884 PMCID: PMC8334364 DOI: 10.3389/fphys.2021.694411] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 06/07/2021] [Indexed: 11/25/2022] Open
Abstract
The aim of this systematic review was to assess the effects of genetic variations and polymorphisms on endurance performance, muscle strength and injury susceptibility in competitive sports. The electronic databases PubMed and Web of Science were searched for eligible studies. The study quality was assessed using the RoBANS tool. Studies were included if they met the following criteria: (1) human study in English or German; (2) published in the period 2015–2019; (3) investigation of an association between genetic variants and endurance performance and/or muscle strength and/or endurance/strength training status as well as ligament, tendon, or muscle injuries; (4) participants aged 18–60 years and national or international competition participation; (5) comparison with a control group. Nineteen studies and one replication study were identified. Results revealed that the IGF-1R 275124 A>C rs1464430 polymorphism was overrepresented in endurance trained athletes. Further, genotypes of PPARGC1A polymorphism correlated with performance in endurance exercise capacity tests in athletes. Moreover, the RR genotype of ACTN3 R577X polymorphism, the C allele of IGF-1R polymorphism and the gene variant FTO T>A rs9939609 and/or their AA genotype were linked to muscle strength. In addition, gene variants of MCT1 (T1470A rs1049434) and ACVR1B (rs2854464) were also positively associated with strength athletes. Among others, the gene variants of the MMP group (rs591058 and rs679620) as well as the polymorphism COL5A1 rs13946 were associated with susceptibility to injuries of competitive athletes. Based on the identified gene variants, individualized training programs for injury prevention and optimization of athletic performance could be created for competitive athletes using gene profiling techniques.
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Affiliation(s)
- Milena Appel
- Department of Exercise Physiology and Sports Therapy, Institute of Sports Science, Justus-Liebig-University Giessen, Giessen, Germany
| | - Karen Zentgraf
- Department of Exercise and Movement Science, Institute of Sports Sciences, Goethe-University Frankfurt, Frankfurt, Germany
| | - Karsten Krüger
- Department of Exercise Physiology and Sports Therapy, Institute of Sports Science, Justus-Liebig-University Giessen, Giessen, Germany
| | - Katharina Alack
- Department of Exercise Physiology and Sports Therapy, Institute of Sports Science, Justus-Liebig-University Giessen, Giessen, Germany
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11
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Influence of genetic factors in elbow tendon pathology: a case-control study. Sci Rep 2020; 10:6503. [PMID: 32300121 PMCID: PMC7162873 DOI: 10.1038/s41598-020-63030-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Accepted: 03/18/2020] [Indexed: 11/09/2022] Open
Abstract
Elbow tendinopathy is a common pathology of the upper extremity that impacts both athletes and workers. Some research has examined the genetic component as a risk factor for tendinopathy, mainly in the lower limbs. A case-control study was designed to test for a relationship between certain collagen gene single nucleotide polymorphisms (SNPs) and elbow tendon pathology. A sample of 137 young adult athletes whose sports participation involves loading of the upper limb were examined for the presence of structural abnormalities indicative of pathology in the tendons of the lateral and medial elbow using ultrasound imaging and genotyped for the following SNPs: COL5A1 rs12722, COL11A1 rs3753841, COL11A1 rs1676486, and COL11A2 rs1799907. Anthropometric measurements and data on participants’ elbow pain and dysfunction were collected using the Disabilities of the Arm, Shoulder and Hand and the Mayo Clinic Performance Index for the Elbow questionnaires. Results showed that participants in the structural abnormality group had significantly higher scores in pain and dysfunction. A significant relationship between COL11A1 rs3753841 genotype and elbow tendon pathology was found (p = 0.024), with the CT variant associated with increased risk of pathology.
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12
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Pontin PA, Nogara PRB, Fonseca FCP, Cesar Netto C, Carvalho KC, Soares Junior JM, Baracat EC, Fernandes TD, Maffulli N, Santos MCL, Godoy-Santos AL. ERα PvuII and XbaI polymorphisms in postmenopausal women with posterior tibial tendon dysfunction: a case control study. J Orthop Surg Res 2018; 13:316. [PMID: 30537990 PMCID: PMC6290490 DOI: 10.1186/s13018-018-1020-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 11/26/2018] [Indexed: 02/05/2023] Open
Abstract
Background Posterior tibial tendon (PTT) insufficiency is considered as the main cause of adult acquired flat foot and is three times more frequent in females. High estrogen levels exert a positive effect on the overall collagen synthesis in tendons. We have previously demonstrated the association between some genetic single-nucleotide polymorphism (SNP) and tendinopathy. In the present study, we investigated the association of PvuII c454-397T>C (NCBI ID: rs2234693) and XbaI c454-351A>G (NCBI ID: rs9340799) SNPs in estrogen receptor alfa (ER-α) gene with PPT dysfunction. Methods A total of 92 female subjects with PTT dysfunction, with histopathological examination of the tendon and magnetic resonance image (MRI) evidence of tendinopathy, were compared to 92 asymptomatic females who presented an intact PPT at MRI for PvuII and XbaI SNPs in the ER-α gene. Genomic DNA was extracted from saliva and genotypes were obtained by polymerase chain reaction restriction fragment length polymorphism. Results The analysis of PvuII SNPs showed no significant differences in the frequency of alleles and genotypes between control and PTT dysfunction groups. The XbaI SNPs in the ER-α gene showed significant differences in the frequency of genotypes between control and test groups (p = 0.01; OR 95% 1.14 (0.55–2.33). Conclusions The XbaI SNP in the ERα gene may contribute to tendinopathy, and the A/A genotype could be a risk factor for PTT tendinopathy in this population. The PvuII SNP studied was not associated with PTT tendinopathy.
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Affiliation(s)
- P A Pontin
- Department of Orthopaedic and Traumatology, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | - P R B Nogara
- Department of Cell Biology, University Federal of Paraná, Curitiba, PR, Brazil
| | - F C P Fonseca
- Department of Orthopaedic and Traumatology, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | - C Cesar Netto
- Department of Orthopedic, Hospital for Special Surgery, New York, USA
| | - K C Carvalho
- Department of Gynecology, University of São Paulo, São Paulo, SP, Brazil
| | - J M Soares Junior
- Department of Gynecology, University of São Paulo, São Paulo, SP, Brazil
| | - E C Baracat
- Department of Gynecology, University of São Paulo, São Paulo, SP, Brazil
| | - T D Fernandes
- Department of Orthopaedic and Traumatology, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | - N Maffulli
- Department of Orthopaedics, School of Medicine, Surgery and Dentistry, Salerno, Italy. .,Institute of Science and Technology in Medicine, Keele University School of Medicine, Stoke-on-Trent, UK. .,Centre for Sports and Exercise Medicine, Queen Mary University of London, Mile End Road, London, E1 4NS, UK.
| | - M C L Santos
- Department of Cell Biology, University Federal of Paraná, Curitiba, PR, Brazil
| | - A L Godoy-Santos
- Department of Orthopaedic and Traumatology, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
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Salles JI, Lopes LR, Duarte MEL, Morrissey D, Martins MB, Machado DE, Guimarães JAM, Perini JA. Fc receptor-like 3 (-169T>C) polymorphism increases the risk of tendinopathy in volleyball athletes: a case control study. BMC MEDICAL GENETICS 2018; 19:119. [PMID: 30021560 PMCID: PMC6052601 DOI: 10.1186/s12881-018-0633-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 06/26/2018] [Indexed: 12/13/2022]
Abstract
Background Tendinopathy pathogenesis is associated with inflammation. Regulatory T (Treg) cells contribute to early tissue repair through an anti-inflammatory action, with the forkhead box P3 (FOXP3) transcription factor being essential for Treg function, and the FC-receptor-like 3 (FCRL3) possibly negatively regulating Treg function. FCRL3 –169T>C and FOXP3 –2383C>T polymorphisms are located near elements that regulate respective genes expression, thus it was deemed relevant to evaluate these polymorphisms as risk factors for tendinopathy development in athletes. Methods This case-control study included 271 volleyball athletes (146 tendinopathy cases and 125 controls) recruited from the Brazilian Volleyball Federation. Genotyping analyses were performed using TaqMan assays, and the association of the polymorphisms with tendinopathy evaluated by multivariate logistic regression. Results Tendinopathy frequency was 63% patellar, 22% rotator cuff and 15% Achilles tendons respectively. Tendinopathy was more common in men (OR = 2.87; 95% CI = 1.67–4.93). Higher age (OR = 8.75; 95% CI = 4.33–17.69) and more years of volleyball practice (OR = 8.38; 95% CI = 3.56–19.73) were risk factors for tendinopathy. The FCRL3 –169T>C frequency was significantly different between cases and controls. After adjustment for potential confounding factors, the FCRL3 –169C polymorphism was associated with increased tendinopathy risk (OR = 1.44; 95% CI = 1.02–2.04), either considering athletes playing with tendon pain (OR = 1.98; 95% CI = 1.30–3.01) or unable to train due to pain (OR = 1.89; 95% CI = 1.01–3.53). The combined variant genotypes, FCRL3 –169TC or –169CC and FOXP3 –2383CT or –2383TT, were associated with an increased risk of tendinopathy among athletes with tendon pain (OR = 2.24; 95% CI: 1.14–4.40 and OR = 2.60; 95% CI: 1.11–6.10). The combined analysis of FCRL3 –169T>C and FOXP3 –2383C>T suggests a gene-gene interaction in the susceptibility to tendinopathy. Conclusions FCRL3 –169C allele may increase the risk of developing tendinopathy, and together with knowledge of potential risk factors (age, gender and years playing) could be used to personalize elite athletes’ training or treatment in combination with other approaches, with the aim of minimizing pathology development risk.
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Affiliation(s)
- José Inácio Salles
- Research Division, National Institute of Traumatology and Orthopaedics, Avenida Brasil, 500, Rio de Janeiro, RJ, 20940-070, Brazil.,Federation International de Volleyball (FIVB) - Coach Commission, Rio de Janeiro, Brazil.,Centre for Sports Exercise Medicine, Queen Mary University of London, London, UK
| | - Lucas Rafael Lopes
- Research Division, National Institute of Traumatology and Orthopaedics, Avenida Brasil, 500, Rio de Janeiro, RJ, 20940-070, Brazil.,Research Laboratory of Pharmaceutical Sciences, West Zone State University, Rio de Janeiro, Brazil.,Program of Post-graduation in Public Health and Environment, National School of Public Health, Oswald Cruz Foundation, Rio de Janeiro, Brazil
| | - Maria Eugenia Leite Duarte
- Research Division, National Institute of Traumatology and Orthopaedics, Avenida Brasil, 500, Rio de Janeiro, RJ, 20940-070, Brazil
| | - Dylan Morrissey
- Centre for Sports Exercise Medicine, Queen Mary University of London, London, UK
| | - Marilena Bezerra Martins
- Research Division, National Institute of Traumatology and Orthopaedics, Avenida Brasil, 500, Rio de Janeiro, RJ, 20940-070, Brazil
| | - Daniel Escorsim Machado
- Research Laboratory of Pharmaceutical Sciences, West Zone State University, Rio de Janeiro, Brazil
| | - João Antonio Matheus Guimarães
- Research Division, National Institute of Traumatology and Orthopaedics, Avenida Brasil, 500, Rio de Janeiro, RJ, 20940-070, Brazil
| | - Jamila Alessandra Perini
- Research Division, National Institute of Traumatology and Orthopaedics, Avenida Brasil, 500, Rio de Janeiro, RJ, 20940-070, Brazil. .,Research Laboratory of Pharmaceutical Sciences, West Zone State University, Rio de Janeiro, Brazil. .,Program of Post-graduation in Public Health and Environment, National School of Public Health, Oswald Cruz Foundation, Rio de Janeiro, Brazil.
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Haug KBF, Visnes H, Sivertsen EA, Bahr R. Genetic variation in candidate genes and patellar tendinopathy: Prospective cohort study of 126 elite volleyball players. TRANSLATIONAL SPORTS MEDICINE 2018. [DOI: 10.1002/tsm2.13] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- K. B. F. Haug
- Department of Medical Biochemistry; Oslo University Hospital, Ullevål; Oslo Norway
| | - H. Visnes
- Oslo Sports Trauma Research Center; Norwegian School of Sport Sciences; Oslo Norway
- Department of Orthopaedic Surgery; Haukeland University Hospital; Bergen Norway
| | - E. A. Sivertsen
- Oslo Sports Trauma Research Center; Norwegian School of Sport Sciences; Oslo Norway
- Department of Surgery; Diakonhjemmet Hospital; Oslo Norway
| | - R. Bahr
- Oslo Sports Trauma Research Center; Norwegian School of Sport Sciences; Oslo Norway
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15
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Vaughn NH, Stepanyan H, Gallo RA, Dhawan A. Genetic Factors in Tendon Injury: A Systematic Review of the Literature. Orthop J Sports Med 2017; 5:2325967117724416. [PMID: 28856171 PMCID: PMC5571768 DOI: 10.1177/2325967117724416] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND Tendon injury such as tendinopathy or rupture is common and has multiple etiologies, including both intrinsic and extrinsic factors. The genetic influence on susceptibility to tendon injury is not well understood. PURPOSE To analyze the published literature regarding genetic factors associated with tendon injury. STUDY DESIGN Systematic review; Level of evidence, 3. METHODS A systematic review of published literature was performed in concordance with the Preferred Reporting Items of Systematic Reviews and Meta-analysis (PRISMA) guidelines to identify current evidence for genetic predisposition to tendon injury. PubMed, Ovid, and ScienceDirect databases were searched. Studies were included for review if they specifically addressed genetic factors and tendon injuries in humans. Reviews, animal studies, or studies evaluating the influence of posttranscription factors and modifications (eg, proteins) were excluded. RESULTS Overall, 460 studies were available for initial review. After application of inclusion and exclusion criteria, 11 articles were ultimately included for qualitative synthesis. Upon screening of references of these 11 articles, an additional 15 studies were included in the final review, for a total of 26 studies. The genetic factors with the strongest evidence of association with tendon injury were those involving type V collagen A1, tenascin-C, matrix metalloproteinase-3, and estrogen-related receptor beta. CONCLUSION The published literature is limited to relatively homogenous populations, with only level 3 and level 4 data. Additional research is needed to make further conclusions about the genetic factors involved in tendon injury.
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Affiliation(s)
- Natalie H. Vaughn
- Department of Orthopaedics and Rehabilitation, Penn State College of Medicine, Milton S. Hershey Medical Center, Hershey, Pennsylvania, USA
| | - Hayk Stepanyan
- Department of Orthopaedics and Rehabilitation, Penn State College of Medicine, Milton S. Hershey Medical Center, Hershey, Pennsylvania, USA
| | - Robert A. Gallo
- Department of Orthopaedics and Rehabilitation, Penn State College of Medicine, Milton S. Hershey Medical Center, Hershey, Pennsylvania, USA
| | - Aman Dhawan
- Department of Orthopaedics and Rehabilitation, Penn State College of Medicine, Milton S. Hershey Medical Center, Hershey, Pennsylvania, USA
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16
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Kim SK, Roos TR, Roos AK, Kleimeyer JP, Ahmed MA, Goodlin GT, Fredericson M, Ioannidis JPA, Avins AL, Dragoo JL. Genome-wide association screens for Achilles tendon and ACL tears and tendinopathy. PLoS One 2017; 12:e0170422. [PMID: 28358823 PMCID: PMC5373512 DOI: 10.1371/journal.pone.0170422] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 01/04/2017] [Indexed: 11/18/2022] Open
Abstract
Achilles tendinopathy or rupture and anterior cruciate ligament (ACL) rupture are substantial injuries affecting athletes, associated with delayed recovery or inability to return to competition. To identify genetic markers that might be used to predict risk for these injuries, we performed genome-wide association screens for these injuries using data from the Genetic Epidemiology Research on Adult Health and Aging (GERA) cohort consisting of 102,979 individuals. We did not find any single nucleotide polymorphisms (SNPs) associated with either of these injuries with a p-value that was genome-wide significant (p<5x10-8). We found, however, four and three polymorphisms with p-values that were borderline significant (p<10-6) for Achilles tendon injury and ACL rupture, respectively. We then tested SNPs previously reported to be associated with either Achilles tendon injury or ACL rupture. None showed an association in our cohort with a false discovery rate of less than 5%. We obtained, however, moderate to weak evidence for replication in one case; specifically, rs4919510 in MIR608 had a p-value of 5.1x10-3 for association with Achilles tendon injury, corresponding to a 7% chance of false replication. Finally, we tested 2855 SNPs in 90 candidate genes for musculoskeletal injury, but did not find any that showed a significant association below a false discovery rate of 5%. We provide data containing summary statistics for the entire genome, which will be useful for future genetic studies on these injuries.
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Affiliation(s)
- Stuart K. Kim
- Department Developmental Biology, Stanford University Medical Center, Stanford CA, United States of America
| | - Thomas R. Roos
- Department Developmental Biology, Stanford University Medical Center, Stanford CA, United States of America
- Department Health Research and Policy, Division of Epidemiology, Stanford University Medical Center, Stanford CA, United States of America
| | - Andrew K. Roos
- Department Developmental Biology, Stanford University Medical Center, Stanford CA, United States of America
- Department Health Research and Policy, Division of Epidemiology, Stanford University Medical Center, Stanford CA, United States of America
| | - John P. Kleimeyer
- Department Orthopaedic Surgery, Stanford University Medical Center, Stanford CA, United States of America
| | - Marwa A. Ahmed
- Department Orthopaedic Surgery, Stanford University Medical Center, Stanford CA, United States of America
| | - Gabrielle T. Goodlin
- College of Medicine, California Northstate University, Elk Grove CA, United States of America
| | - Michael Fredericson
- Department Orthopaedic Surgery, Stanford University Medical Center, Stanford CA, United States of America
| | - John P. A. Ioannidis
- Department of Medicine, Stanford Prevention Research Center, Stanford University School of Medicine, Stanford CA, United States of America
- Department of Health Research and Policy, Division of Epidemiology, Stanford University School of Medicine, Stanford CA, United States of America
- Department of Statistics, Stanford University School of Humanities and Sciences, Stanford CA, United States of America
| | - Andrew L. Avins
- Kaiser Permanente Northern California, Division of Research, Oakland, California, United States of America
| | - Jason L. Dragoo
- Department Orthopaedic Surgery, Stanford University Medical Center, Stanford CA, United States of America
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de Araujo Munhoz FB, Baroneza JE, Godoy-Santos A, Fernandes TD, Branco FP, Alle LF, de Souza RL, dos Santos MCLG. Posterior tibial tendinopathy associated with matrix metalloproteinase 13 promoter genotype and haplotype. J Gene Med 2016; 18:325-330. [DOI: 10.1002/jgm.2934] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 11/16/2016] [Accepted: 11/20/2016] [Indexed: 11/12/2022] Open
Affiliation(s)
| | - José Eduardo Baroneza
- Department of Cell Biology; University Federal of Paraná; Curitiba Puerto Rico Brazil
| | - Alexandre Godoy-Santos
- Department of Orthopedics and Traumatology; University of São Paulo; São Paulo SP Brazil
| | - Túlio Diniz Fernandes
- Department of Orthopedics and Traumatology; University of São Paulo; São Paulo SP Brazil
| | | | - Lupe Furtado Alle
- Department of Genetic; University Federal of Paraná; Curitiba Puerto Rico Brazil
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Vascular Endothelial Growth Factor Receptor-2 Polymorphisms Have Protective Effect against the Development of Tendinopathy in Volleyball Athletes. PLoS One 2016; 11:e0167717. [PMID: 27930691 PMCID: PMC5145183 DOI: 10.1371/journal.pone.0167717] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 11/18/2016] [Indexed: 11/21/2022] Open
Abstract
The aim of the study was to investigate whether genetic variants in VEGF and KDR genes can be correlated with susceptibility of tendinopathy in volleyball athletes. This study was conducted at the Brazilian Volleyball Federation, and comprised 179 volleyball athletes: 88 had a confirmed diagnosis of tendinopathy (cases), whereas 91 had no evidence of the disease (controls). The VEGF (-2578C>A, -460T>C and +936C>T) and KDR (-604C>T, 1192G>A and 1719T>A) polymorphisms were determined by TaqMan real-time polymerase chain reaction. The odds ratio (OR) with their 95% confidence intervals (CI) were calculated using an unconditional logistic regression model. The evaluation of demographic and clinical characteristics revealed the athlete age (P < 0.001), years of practice in volleyball (P < 0.001) and presence of pain (P = 0.001) were risk factors for tendinopathy. KDR 1192 GA and GA + AA genotypes were associated with lower risk of tendinopathy (OR: 0.41, 95% CI: 0.19–0.88 and OR: 0.47, 95% CI: 0.23–0.98, respectively). The KDR (-604C>T, 1192G>A and 1719T>A) haplotypes CGA and CAT were associated with decreased tendinopathy risk (OR: 0.46, 95% CI: 0.21–0.99 and OR: 0.23, 95% CI: 0.07–0.76, respectively). With regards to pain, traumatic lesion and away from training due to injury, VEGF and KDR polymorphisms were not associated with clinical symptoms complaints. The present results provide evidence that the KDR polymorphisms were associated with development of tendinopathy, and can contribute to identify new therapeutic targets or personalized training programs to avoid tendinopathy development in athletes.
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Chaudhury S, Xia Z, Thakkar D, Hakimi O, Carr AJ. Gene expression profiles of changes underlying different-sized human rotator cuff tendon tears. J Shoulder Elbow Surg 2016; 25:1561-70. [PMID: 27131575 DOI: 10.1016/j.jse.2016.02.037] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 02/15/2016] [Accepted: 02/24/2016] [Indexed: 02/01/2023]
Abstract
BACKGROUND Progressive cellular and extracellular matrix (ECM) changes related to age and disease severity have been demonstrated in rotator cuff tendon tears. Larger rotator cuff tears demonstrate structural abnormalities that potentially adversely influence healing potential. This study aimed to gain greater insight into the relationship of pathologic changes to tear size by analyzing gene expression profiles from normal rotator cuff tendons, small rotator cuff tears, and large rotator cuff tears. METHODS We analyzed gene expression profiles of 28 human rotator cuff tendons using microarrays representing the entire genome; 11 large and 5 small torn rotator cuff tendon specimens were obtained intraoperatively from tear edges, which we compared with 12 age-matched normal controls. We performed real-time polymerase chain reaction and immunohistochemistry for validation. RESULTS Torn rotator cuff tendons demonstrated upregulation of a number of key genes, such as matrix metalloproteinase 3, 10, 12, 13, 15, 21, and 25; a disintegrin and metalloproteinase (ADAM) 12, 15, and 22; and aggrecan. Amyloid was downregulated in all tears. Small tears displayed upregulation of bone morphogenetic protein 5. Chemokines and cytokines that may play a role in chemotaxis were altered; interleukins 3, 10, 13, and 15 were upregulated in tears, whereas interleukins 1, 8, 11, 18, and 27 were downregulated. CONCLUSIONS The gene expression profiles of normal controls and small and large rotator cuff tear groups differ significantly. Extracellular matrix remodeling genes were found to contribute to rotator cuff tear pathogenesis. Rotator cuff tears displayed upregulation of a number of matrix metalloproteinase (3, 10, 12, 13, 15, 21, and 25), a disintegrin and metalloproteinase (ADAM 12, 15, and 22) genes, and downregulation of some interleukins (1, 8, and 27), which play important roles in chemotaxis. These gene products may potentially have a role as biomarkers of failure of healing or therapeutic targets to improve tendon healing.
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Affiliation(s)
- Salma Chaudhury
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Surgery, Nuffield Orthopaedic Center, University of Oxford, Oxford, UK.
| | | | - Dipti Thakkar
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Surgery, Nuffield Orthopaedic Center, University of Oxford, Oxford, UK
| | - Osnat Hakimi
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Surgery, Nuffield Orthopaedic Center, University of Oxford, Oxford, UK
| | - Andrew J Carr
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Surgery, Nuffield Orthopaedic Center, University of Oxford, Oxford, UK
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20
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van Ark M, Docking SI, van den Akker-Scheek I, Rudavsky A, Rio E, Zwerver J, Cook JL. Does the adolescent patellar tendon respond to 5 days of cumulative load during a volleyball tournament? Scand J Med Sci Sports 2015; 26:189-96. [PMID: 25694241 DOI: 10.1111/sms.12426] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/09/2015] [Indexed: 12/15/2022]
Abstract
Patellar tendinopathy (jumper's knee) has a high prevalence in jumping athletes. Excessive load on the patellar tendon through high volumes of training and competition is an important risk factor. Structural changes in the tendon are related to a higher risk of developing patellar tendinopathy. The critical tendon load that affects tendon structure is unknown. The aim of this study was to investigate patellar tendon structure on each day of a 5-day volleyball tournament in an adolescent population (16-18 years). The right patellar tendon of 41 players in the Australian Volleyball Schools Cup was scanned with ultrasound tissue characterization (UTC) on every day of the tournament (Monday to Friday). UTC can quantify structure of a tendon into four echo types based on the stability of the echo pattern. Generalized estimating equations (GEE) were used to test for change of echo type I and II over the tournament days. Participants played between eight and nine matches during the tournament. GEE analysis showed no significant change of echo type percentages of echo type I (Wald chi-square = 4.603, d.f. = 4, P = 0.331) and echo type II (Wald chi-square = 6.070, d.f. = 4, P = 0.194) over time. This study shows that patellar tendon structure of 16-18-year-old volleyball players is not affected during 5 days of cumulative loading during a volleyball tournament.
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Affiliation(s)
- M van Ark
- Center for Sports Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.,Department of Physiotherapy, Monash University, Frankston, Victoria, Australia
| | - S I Docking
- Department of Physiotherapy, Monash University, Frankston, Victoria, Australia
| | - I van den Akker-Scheek
- Center for Sports Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - A Rudavsky
- Department of Physiotherapy, Monash University, Frankston, Victoria, Australia
| | - E Rio
- Department of Physiotherapy, Monash University, Frankston, Victoria, Australia
| | - J Zwerver
- Center for Sports Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - J L Cook
- Department of Physiotherapy, Monash University, Frankston, Victoria, Australia
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