Nina Briški1,2, Goran Vrgoč3,4, Damir Knjaz3, Saša Janković3,4, Alan Ivković4,5,6, Marko Pećina5, Gordan Lauc7,8. 1. Genos Ltd, Borongajska cesta 83h, 10000, Zagreb, Croatia. nbriski@genos.hr. 2. Faculty of Kinesiology, University of Zagreb, Horvaćanski zavoj 15, 10000, Zagreb, Croatia. nbriski@genos.hr. 3. Faculty of Kinesiology, University of Zagreb, Horvaćanski zavoj 15, 10000, Zagreb, Croatia. 4. Department of Orthopaedic Surgery, University Hospital, "Sveti Duh", Ulica Sveti Duh 64, 10000, Zagreb, Croatia. 5. School of Medicine, University of Zagreb, Šalata 2, 10000, Zagreb, Croatia. 6. Department of Biotechnology, University of Rijeka, Ulica Radmile Matejčić 2, 51000, Rijeka, Croatia. 7. Genos Ltd, Borongajska cesta 83h, 10000, Zagreb, Croatia. 8. Faculty of Pharmacy and Biochemistry, University of Zagreb, Ulica Ante Kovačića 1, 10000, Zagreb, Croatia.
Abstract
BACKGROUND: Matrix metalloproteinases (MMPs) play an important role in matrix remodelling, as well as in tendon integrity. Due to overuse, athletes often develop chronic tendinopathies. If not treated, they lead to severe impairment, even complete tendon ruptures. AIM: The main purpose of this study was to investigate whether three functional polymorphisms within the MMP3 gene are associated with increased risk of developing tendinopathies in high-level Croatian athletes. METHODS: We have recruited one hundred fifty-five (63 high-level athletes with diagnosed tendinopathies and 92 asymptomatic controls) unrelated Caucasians for this case-control genetic study. All participants were genotyped for three single nucleotide polymorphisms (SNP) within the MMP3 gene: rs591058 C/T, rs650108 A/G and rs679620 G/A using the pyrosequencing method. RESULTS: The MMP3 rs650108 GG (P = 0.0074) and rs679620 AA (P = 0.0119) genotypes were significantly over-represented in cases compared with controls, while rs591058 TT (P = 0.0759), as well as haplotype variant T - G - A (P = 0.06), implicated that there is an indication of predisposition for tendinopathies. CONCLUSION: These results support association between functional variants within the MMP3 gene and the risk of tendinopathies in high-level athletes. Further research is needed to replicate these results in a larger population.
BACKGROUND: Matrix metalloproteinases (MMPs) play an important role in matrix remodelling, as well as in tendon integrity. Due to overuse, athletes often develop chronic tendinopathies. If not treated, they lead to severe impairment, even complete tendon ruptures. AIM: The main purpose of this study was to investigate whether three functional polymorphisms within the MMP3 gene are associated with increased risk of developing tendinopathies in high-level Croatian athletes. METHODS: We have recruited one hundred fifty-five (63 high-level athletes with diagnosed tendinopathies and 92 asymptomatic controls) unrelated Caucasians for this case-control genetic study. All participants were genotyped for three single nucleotide polymorphisms (SNP) within the MMP3 gene: rs591058 C/T, rs650108 A/G and rs679620 G/A using the pyrosequencing method. RESULTS: The MMP3rs650108 GG (P = 0.0074) and rs679620 AA (P = 0.0119) genotypes were significantly over-represented in cases compared with controls, while rs591058 TT (P = 0.0759), as well as haplotype variant T - G - A (P = 0.06), implicated that there is an indication of predisposition for tendinopathies. CONCLUSION: These results support association between functional variants within the MMP3 gene and the risk of tendinopathies in high-level athletes. Further research is needed to replicate these results in a larger population.
Entities:
Keywords:
Achilles tendinopathy; Genetic association study; Matrix metalloproteinase 3 (MMP3); Single nucleotide polymorphism; Sport injury
Authors: S M Raleigh; L van der Merwe; W J Ribbans; R K W Smith; M P Schwellnus; M Collins Journal: Br J Sports Med Date: 2008-11-28 Impact factor: 13.800
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