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Burnheimer JM, Baxter DJ, Deeley KB, Vieira AR, Bezamat M. Exploring etiologic contributions to the occurrence of external apical root resorption. Am J Orthod Dentofacial Orthop 2024:S0889-5406(24)00225-7. [PMID: 39001738 DOI: 10.1016/j.ajodo.2024.05.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 05/01/2024] [Accepted: 05/01/2024] [Indexed: 07/15/2024]
Abstract
INTRODUCTION External apical root resorption (EARR) is often an undesirable sequela of orthodontic treatment. Prior studies have suggested a substantial link between EARR and certain genetic components. Single nucleotide polymorphisms (SNPs) may play a role as predisposing factors. This study aimed to investigate the potential association between EARR and various SNPs. METHODS The study included 218 orthodontic participants of all malocclusions who had available pretreatment and posttreatment panoramic radiographs. The most severely affected maxillary incisor on the radiograph was assessed for EARR using a 0-4 categorical scale. DNA was taken from the saliva samples of the participants, and the SNPs were analyzed using polymerase chain reaction and TaqMan chemistry. Statistical testing was performed to verify any associations with EARR (P <0.05). RESULTS From all genes tested, the rs678397 SNP of ACT3N (P = 0.003) and the rs1051771 SNP of TSC2 (P = 0.03) were significantly associated with EARR. No association could be established between other polymorphisms and EARR. In addition, patients with Class III malocclusion and extended treatment times were at increased risk of developing EARR. CONCLUSIONS Our results support the concept of gene polymorphisms as risk factors in EARR. In particular, a significant association was found between ACT3N and TSC2 and EARR. Clinically, predisposing risk factors for EARR should be assessed for each patient.
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Affiliation(s)
- John M Burnheimer
- Advanced Education Program in Orthodontics and Dentofacial Orthopedics, Seton Hill University, Greensburg, Pa.
| | - Dylan J Baxter
- Department of Oral and Craniofacial Sciences, School of Dental Medicine, University of Pittsburgh, Pittsburgh, Pa
| | - Kathleen B Deeley
- Department of Oral and Craniofacial Sciences, School of Dental Medicine, University of Pittsburgh, Pittsburgh, Pa
| | - Alexandre R Vieira
- Office of Research, School of Dental Medicine, East Carolina University, Greenville, NC
| | - Mariana Bezamat
- Department of Oral and Craniofacial Sciences, School of Dental Medicine, University of Pittsburgh, Pittsburgh, Pa
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Kobayashi T, Seki S, Hwang I. Relationship of muscle power and bone mineral density with the α-actinin-3 R577X polymorphism in Japanese female athletes from different sport types: An observational study. Medicine (Baltimore) 2022; 101:e31685. [PMID: 36397442 PMCID: PMC9666200 DOI: 10.1097/md.0000000000031685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
The aim of this study was to clarify the relationships between muscle power and bone mineral density (BMD) and the α-actinin-3 (ACTN3) R577X polymorphism in Japanese female collegiate athletes participating in sports with various mechanical-load characteristics. This study included 260 female collegiate athletes involved in 10 competitive sports and 26 controls (mean ages, 19.2 ± 1.2 and 19.7 ± 1.3 years, respectively). The sports were classified into 3 categories (low-impact, multidirectional, and high-impact) based on the exercise load characteristics. Data on sports participation and competition experience were obtained through a questionnaire-type survey. The maximum anaerobic power (MAnP) test was performed to measure muscle power. The total body BMD was measured using dual-energy X-ray absorptiometry. The ACTN3 R577X polymorphism (rs1815739) was analyzed using a TaqMan® assay. The multidirectional sports participants with the RR genotype of the ACTN3 R577X polymorphism had a higher BMD than those with the RX and RX + XX genotypes (P = .018 and P = .003, respectively). The RR genotype was also associated with a higher MAnP than those with the RX + XX genotypes (P = .035). No other variables related to BMD and MAnP were significantly different. Our results suggests that the RR genotype may confer high trainability for BMD and muscle power in Japanese female collegiate athletes participating in multidirectional sport types. However, these associations were not found in the athletes participating in the low- and high-impact sport types.
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Affiliation(s)
- Tetsuro Kobayashi
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
- * Correspondence: Tetsuro Kobayashi, Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo 158-8508, Japan (e-mail: )
| | - Shotaro Seki
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
| | - Inkwan Hwang
- Faculty of Sport Science, Nippon Sport Science University, Kanagawa, Japan
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Taniguchi Y, Makizako H, Nakai Y, Kiuchi Y, Akaida S, Tateishi M, Takenaka T, Kubozono T, Ohishi M. Associations of the Alpha-Actinin Three Genotype with Bone and Muscle Mass Loss among Middle-Aged and Older Adults. J Clin Med 2022; 11:jcm11206172. [PMID: 36294493 PMCID: PMC9605580 DOI: 10.3390/jcm11206172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/13/2022] [Accepted: 10/17/2022] [Indexed: 11/18/2022] Open
Abstract
Bone and muscle mass loss are known to occur simultaneously. The alpha-actinin three (ACTN3) genotype has been shown to potentially affect bone and muscle mass. In this study, we investigated the association between the ACTN3 genotype and bone and muscle mass loss in community-dwelling adults aged ≥ 60 years. This study was a cross-sectional analysis of data from 295 participants who participated in a community health checkup. The ACTN3 genotypes were classified as RR, RX, or XX types. Bone mass loss was defined as a calcaneal speed of sound T-score of <−1.32 and <−1.37, and muscle mass loss was defined as an appendicular skeletal muscle index of <7.0 kg/m2 and <5.7 kg/m2 in men and women, respectively. The percentages of XX, RX, and RR in the combined bone and muscle mass loss group were 33.8%, 30.8%, and 16.7%, respectively, with a significantly higher trend for XX. Multinomial logistic regression analysis showed that XX had an odds ratio of 3.00 (95% confidence interval 1.05−8.54) of being in the combined bone and muscle mass loss group compared to the RR group (covariates: age, sex, grip strength, and medications). The ACTN3 genotype of XX is associated with a higher rate of comorbid bone and muscle mass loss. Therefore, ACTN3 genotyping should be considered for preventing combined bone and muscle mass loss.
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Affiliation(s)
- Yoshiaki Taniguchi
- Graduate School of Health Sciences, Kagoshima University, Kagoshima 890-8544, Japan
- Department of Physical Therapy, Kagoshima Medical Professional College, Kagoshima 891-0133, Japan
| | - Hyuma Makizako
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima 890-8544, Japan
- Correspondence: ; Tel.: +81-99-275-5111
| | - Yuki Nakai
- Department of Mechanical Systems Engineering, Faculty of Engineering, Daiichi Institute of Technology, Kagoshima 899-4395, Japan
| | - Yuto Kiuchi
- Graduate School of Health Sciences, Kagoshima University, Kagoshima 890-8544, Japan
- Section for Health Promotion, Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Aichi 474-8511, Japan
| | - Shoma Akaida
- Graduate School of Health Sciences, Kagoshima University, Kagoshima 890-8544, Japan
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima 890-8544, Japan
| | - Mana Tateishi
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima 890-8544, Japan
| | - Toshihiko Takenaka
- Tarumizu Municipal Medical Center Tarumizu Chuo Hospital, Kagoshima 891-2124, Japan
| | - Takuro Kubozono
- Department of Cardiovascular Medicine and Hypertension, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan
| | - Mitsuru Ohishi
- Department of Cardiovascular Medicine and Hypertension, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan
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Cai M, Wu C, Jing C, Shen X, He M, Wang L, Guo Q, Yan Y, Yan X, Yang R. Blood Metabolomics Analysis Identifies Differential Serum Metabolites in Elite and Sub-elite Swimmers. Front Physiol 2022; 13:858869. [PMID: 35600307 PMCID: PMC9118345 DOI: 10.3389/fphys.2022.858869] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 03/31/2022] [Indexed: 11/17/2022] Open
Abstract
Objective: Metabolites in body fluids, such as lactate, glucose, and creatinine, have been measured by conventional methods to evaluate physical function and performance or athletic status. The objectives of the current study were to explore the novel metabolite biomarkers in professional swimmers with different competition levels using nuclear magnetic resonance (NMR) metabolomics, and try to establish a model to identify the athletic status or predict the competitive potential. Methods: Serum samples were collected from 103 elite and 84 sub-elite level Chinese professional swimmers, and were profiled by NMR analysis. Results: Out of the thirty-six serum metabolites profiled, ten were associated with the athletic status of swimmers (with p < 0.05). When compared with sub-elite swimmers, elite swimmers had higher levels of high-density lipoprotein (HDL), unsaturated fatty acid, lactic acid, and methanol. Elite swimmers had lower levels of isoleucine, 3-hydroxybutyric acid, acetoacetate, glutamine, glycine, and α-glucose. A model with four metabolites, including HDL, glutamine, methanol, and α-glucose, was established to predict athletic status by adjusting with different covariates. The area under the curve (AUC) of the best model was 0.904 (95% CI: 0.862-0.947), with a sensitivity and specificity of 75.5 and 90.2%, respectively. Conclusion: We have identified ten metabolite biomarkers with differentially expressed levels between elite and sub-elite swimmers, the differences could result from genetic or sports level between the two cohorts. A model with four metabolites has successfully differentiated professional swimmers with different competitive levels.
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Affiliation(s)
- Ming Cai
- Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, Shanghai, China
- College of Rehabilitation Sciences, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Chao Wu
- Foundation of Shanghai Vocational College of Agriculture and Forestry, Shanghai, China
| | - Chen Jing
- Shanghai Research Institute of Sports Science (Shanghai Anti-Doping Center), Shanghai, China
| | - Xunzhang Shen
- College of Rehabilitation Sciences, Shanghai University of Medicine and Health Sciences, Shanghai, China
- Shanghai Research Institute of Sports Science (Shanghai Anti-Doping Center), Shanghai, China
| | - Mian He
- College of Rehabilitation Sciences, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Liyan Wang
- College of Rehabilitation Sciences, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Qi Guo
- Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, Shanghai, China
- College of Rehabilitation Sciences, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Yan Yan
- School of Life Science, Qufu Normal University, Qufu, China
| | - Xu Yan
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, VIC, Australia
- Australian Institute for Musculoskeletal Science (AIMSS), Melbourne, VIC, Australia
- Department of Medicine - Western Health, The University of Melbourne, Melbourne, VIC, Australia
- *Correspondence: Xu Yan, ; Ruoyu Yang,
| | - Ruoyu Yang
- College of Rehabilitation Sciences, Shanghai University of Medicine and Health Sciences, Shanghai, China
- *Correspondence: Xu Yan, ; Ruoyu Yang,
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Nicot R, Chung K, Vieira AR, Raoul G, Ferri J, Sciote JJ. Condyle modeling stability, craniofacial asymmetry and ACTN3 genotypes: Contribution to TMD prevalence in a cohort of dentofacial deformities. PLoS One 2020; 15:e0236425. [PMID: 32726330 PMCID: PMC7390436 DOI: 10.1371/journal.pone.0236425] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 07/06/2020] [Indexed: 01/01/2023] Open
Abstract
Craniofacial asymmetry, mandibular condylar modeling and temporomandibular joint disorders are common comorbidities of skeletally disproportionate malocclusions, but etiology of occurrence together is poorly understood. We compared asymmetry, condyle modeling stability and temporomandibular health in a cohort of 128 patients having orthodontics and orthognathic surgery to correct dentofacial deformity malocclusions. We also compared ACTN3 and ENPP1 genotypes for association to clinical conditions. Pre-surgical posterior-anterior cephalometric and panometric radiographic analyses; jaw pain and function questionnaire and clinical examination of TMD; and SNP-genotype analysis from saliva samples were compared to assess interrelationships. Almost half had asymmetries in need of surgical correction, which could be subdivided into four distinct morphological patterns. Asymmetric condyle modeling between sides was significantly greater in craniofacial asymmetry, but most commonly had an unanticipated pattern. Often, longer or larger condyles occurred on the shorter mandibular ramus side. Subjects with longer ramus but dimensionally smaller condyles were more likely to have self-reported TMD symptoms (p = 0.023) and significantly greater clinical diagnosis of TMD (p = 0 .000001), with masticatory myalgia most prominent. Genotyping found two significant genotype associations for ACTN3 rs1671064 (Q523R missense) p = 0.02; rs678397 (intronic SNP) p = 0.04 and one significant allele association rs1815739 (R577X nonsense) p = 0.00. Skeletal asymmetry, unusual condyle modeling and TMD are common and interrelated components of many dentofacial deformities. Imbalanced musculoskeletal functional adaptations and genetic or epigenetic influences contribute to the etiology, and require further investigation.
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Affiliation(s)
- Romain Nicot
- Department of Oral and Maxillofacial Surgery, Univ. Lille, Inserm, CHU Lille, U1008—Controlled Drug Delivery Systems and Biomaterials, Lille, France
- * E-mail:
| | - Kay Chung
- Department of Orthodontics, Temple University, Philadelphia, PA, United States of America
| | - Alexandre R. Vieira
- Department of Oral Biology, University of Pittsburgh School of Dental Medicine, Pittsburgh, PA, United States of America
| | - Gwénaël Raoul
- Department of Oral and Maxillofacial Surgery, Univ. Lille, Inserm, CHU Lille, U1008—Controlled Drug Delivery Systems and Biomaterials, Lille, France
| | - Joël Ferri
- Department of Oral and Maxillofacial Surgery, Univ. Lille, Inserm, CHU Lille, U1008—Controlled Drug Delivery Systems and Biomaterials, Lille, France
| | - James J. Sciote
- Department of Orthodontics, Temple University, Philadelphia, PA, United States of America
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Li J, Li Y, Atakan MM, Kuang J, Hu Y, Bishop DJ, Yan X. The Molecular Adaptive Responses of Skeletal Muscle to High-Intensity Exercise/Training and Hypoxia. Antioxidants (Basel) 2020; 9:E656. [PMID: 32722013 PMCID: PMC7464156 DOI: 10.3390/antiox9080656] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 07/19/2020] [Accepted: 07/21/2020] [Indexed: 12/31/2022] Open
Abstract
High-intensity exercise/training, especially interval exercise/training, has gained popularity in recent years. Hypoxic training was introduced to elite athletes half a century ago and has recently been adopted by the general public. In the current review, we have summarised the molecular adaptive responses of skeletal muscle to high-intensity exercise/training, focusing on mitochondrial biogenesis, angiogenesis, and muscle fibre composition. The literature suggests that (peroxisome proliferator-activated receptor gamma coactivator 1-alpha) PGC-1α, vascular endothelial growth factor (VEGF), and hypoxia-inducible factor 1-alpha (HIF1-α) might be the main mediators of skeletal muscle adaptations to high-intensity exercises in hypoxia. Exercise is known to be anti-inflammatory, while the effects of hypoxia on inflammatory signalling are more complex. The anti-inflammatory effects of a single session of exercise might result from the release of anti-inflammatory myokines and other cytokines, as well as the downregulation of Toll-like receptor signalling, while training-induced anti-inflammatory effects may be due to reductions in abdominal and visceral fat (which are main sources of pro-inflammatory cytokines). Hypoxia can lead to inflammation, and inflammation can result in tissue hypoxia. However, the hypoxic factor HIF1-α is essential for preventing excessive inflammation. Disease-induced hypoxia is related to an upregulation of inflammatory signalling, but the effects of exercise-induced hypoxia on inflammation are less conclusive. The effects of high-intensity exercise under hypoxia on skeletal muscle molecular adaptations and inflammatory signalling have not been fully explored and are worth investigating in future studies. Understanding these effects will lead to a more comprehensive scientific basis for maximising the benefits of high-intensity exercise.
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Affiliation(s)
- Jia Li
- College of Physical Education, Southwest University, Chongqing 400715, China;
- Institute for Health and Sport (iHeS), Victoria University, P.O. Box 14428, Melbourne 8001, Australia; (M.M.A.); (J.K.); (D.J.B.)
| | - Yanchun Li
- China Institute of Sport and Health Science, Beijing Sport University, Beijing 100192, China; (Y.L.); (Y.H.)
| | - Muhammed M. Atakan
- Institute for Health and Sport (iHeS), Victoria University, P.O. Box 14428, Melbourne 8001, Australia; (M.M.A.); (J.K.); (D.J.B.)
- Division of Nutrition and Metabolism in Exercise, Faculty of Sport Sciences, Hacettepe University, 06800 Ankara, Turkey
| | - Jujiao Kuang
- Institute for Health and Sport (iHeS), Victoria University, P.O. Box 14428, Melbourne 8001, Australia; (M.M.A.); (J.K.); (D.J.B.)
| | - Yang Hu
- China Institute of Sport and Health Science, Beijing Sport University, Beijing 100192, China; (Y.L.); (Y.H.)
| | - David J. Bishop
- Institute for Health and Sport (iHeS), Victoria University, P.O. Box 14428, Melbourne 8001, Australia; (M.M.A.); (J.K.); (D.J.B.)
| | - Xu Yan
- Institute for Health and Sport (iHeS), Victoria University, P.O. Box 14428, Melbourne 8001, Australia; (M.M.A.); (J.K.); (D.J.B.)
- Sarcopenia Research Program, Australia Institute for Musculoskeletal Sciences (AIMSS), Melbourne 3021, Australia
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Effect of ACTN3 Genotype on Sports Performance, Exercise-Induced Muscle Damage, and Injury Epidemiology. Sports (Basel) 2020; 8:sports8070099. [PMID: 32668587 PMCID: PMC7404684 DOI: 10.3390/sports8070099] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 06/30/2020] [Accepted: 07/09/2020] [Indexed: 12/20/2022] Open
Abstract
Genetic factors play a significant role in athletic performance and its related phenotypes such as power, strength and aerobic capacity. In this regard, the lack of a muscle protein due to a genetic polymorphism has been found to affect sport performance in a wide variety of ways. α-actinin-3 is a protein located within the skeletal muscle with a key role in the production of sarcomeric force. A common stop-codon polymorphism (rs1815739; R577X) in the gene that codes for α-actinin-3 (ACTN3) produces individuals with the XX genotype that lack expression of a functional α-actinin-3. In contrast, individuals with the R-allele (i.e., RX vs. RR genotypes) in this polymorphism can express α-actinin-3. Interestingly, around ~18% of the world population have the XX genotype and much has been debated about why a polymorphism that produces a lack of a muscle protein has endured natural selection. Several investigations have found that α-actinin-3 deficiency due to XX homozygosity in the ACTN3 R577X polymorphism can negatively affect sports performance through several structural, metabolic, or signaling changes. In addition, new evidence suggests that α-actinin-3 deficiency may also impact sports performance through indirect factors such a higher risk for injury or lower resistance to muscle-damaging exercise. The purpose of this discussion is to provide a clear explanation of the effect of α-actinin-3 deficiency due to the ACTN3 XX genotype on sport. Key focus has been provided about the effect of α-actinin-3 deficiency on morphologic changes in skeletal muscle, on the low frequency of XX athletes in some athletic disciplines, and on injury epidemiology.
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Smith C, Voisin S, Al Saedi A, Phu S, Brennan-Speranza T, Parker L, Eynon N, Hiam D, Yan X, Scott D, Blekkenhorst LC, Lewis JR, Seeman E, Byrnes E, Flicker L, Duque G, Yeap BB, Levinger I. Osteocalcin and its forms across the lifespan in adult men. Bone 2020; 130:115085. [PMID: 31622778 DOI: 10.1016/j.bone.2019.115085] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 09/26/2019] [Accepted: 09/27/2019] [Indexed: 02/02/2023]
Abstract
PURPOSE Osteocalcin (OC), an osteoblast-specific secreted protein expressed by mature osteoblasts, is used in clinical practice and in research as a marker of bone turnover. The carboxylated (cOC) and undercarboxylated (ucOC) forms may have a different biological function but age-specific reference ranges for these components are not established. Given the different physiological roles, development of reference ranges may help to identify people at risk for bone disease. METHODS Blood was collected in the morning after an overnight fast from 236 adult men (18 to 92 years old) free of diabetes, antiresorptive, warfarin or glucocorticoid use. Serum was analyzed for total osteocalcin (tOC) and the ucOC fraction using the hydroxyapatite binding method. cOC, ucOC/tOC and cOC/tOC ratios were calculated. Reference intervals were established by polynomial quantile regression analysis. RESULTS The normal ranges for young men (≤30 years) were: tOC 17.9-56.8 ng/mL, ucOC 7.1-22.0 ng/mL, cOC 8.51-40.3 ng/mL (2.5th to 97.5th quantiles). Aging was associated with a "U" shaped pattern for tOC, cOC and ucOC levels. ucOC/tOC ratio was higher, while cOC/tOC ratio was lower in men of advanced age. Age explained ∼31%, while body mass index explained ∼4%, of the variance in the ratios. CONCLUSIONS We have defined normal reference ranges for the OC forms in Australian men and demonstrated that the OC ratios may be better measures, than the absolute values, to identify the age-related changes on OC in men. These ratios may be incorporated into future research and clinical trials, and their associations with prediction of events, such as fracture or diabetes risk, should be determined.
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Affiliation(s)
- Cassandra Smith
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, VIC, Australia; Australian Institute for Musculoskeletal Science (AIMSS), University of Melbourne and Western Health, St Albans, VIC, Australia
| | - Sarah Voisin
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, VIC, Australia
| | - Ahmed Al Saedi
- Australian Institute for Musculoskeletal Science (AIMSS), University of Melbourne and Western Health, St Albans, VIC, Australia; Department of Medicine-Western Health, Melbourne Medical School, The University of Melbourne, Melbourne, VIC, Australia
| | - Steven Phu
- Australian Institute for Musculoskeletal Science (AIMSS), University of Melbourne and Western Health, St Albans, VIC, Australia; Department of Medicine-Western Health, Melbourne Medical School, The University of Melbourne, Melbourne, VIC, Australia
| | - Tara Brennan-Speranza
- Department of Physiology and Bosch Institute for Medical Research, University of Sydney, New South Wales, Australia
| | - Lewan Parker
- Institute for Physical Activity and Nutrition (IPAN), Deakin University, Geelong, VIC, Australia
| | - Nir Eynon
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, VIC, Australia; Murdoch Childrens Research Institute, Melbourne, Australia
| | - Danielle Hiam
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, VIC, Australia
| | - Xu Yan
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, VIC, Australia
| | - David Scott
- Australian Institute for Musculoskeletal Science (AIMSS), University of Melbourne and Western Health, St Albans, VIC, Australia; School of Clinical Sciences at Monash Health, Monash University, Melbourne, VIC, Australia
| | - Lauren C Blekkenhorst
- School of Medical and Health Sciences, Edith Cowan University, Perth, Australia; Medical School, University of Western Australia, Perth, Australia
| | - Joshua R Lewis
- School of Medical and Health Sciences, Edith Cowan University, Perth, Australia; Medical School, University of Western Australia, Perth, Australia; Centre for Kidney Research, Children's Hospital at Westmead School of Public Health, Sydney Medical School, The University of Sydney, Sydney, Australia
| | - Ego Seeman
- University of Melbourne and the Department of Endocrinology, Austin Health and the Mary Mackillop Institute of Healthy Aging, Australian Catholic University, Melbourne, Australia
| | - Elizabeth Byrnes
- Department of Biochemistry, PathWest Laboratory Medicine, Queen Elizabeth II Medical Centre, Perth, Australia
| | - Leon Flicker
- Medical School, University of Western Australia, Perth, Australia; Western Australian Centre for Health & Ageing, University of Western Australia, Perth, Australia
| | - Gustavo Duque
- Australian Institute for Musculoskeletal Science (AIMSS), University of Melbourne and Western Health, St Albans, VIC, Australia; Department of Medicine-Western Health, Melbourne Medical School, The University of Melbourne, Melbourne, VIC, Australia
| | - Bu B Yeap
- Medical School, University of Western Australia, Perth, Australia; Department of Endocrinology and Diabetes, Fiona Stanley Hospital, Perth, Australia
| | - Itamar Levinger
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, VIC, Australia; Australian Institute for Musculoskeletal Science (AIMSS), University of Melbourne and Western Health, St Albans, VIC, Australia; Department of Medicine-Western Health, Melbourne Medical School, The University of Melbourne, Melbourne, VIC, Australia.
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Hiam D, Voisin S, Yan X, Landen S, Jacques M, Papadimitriou ID, Munson F, Byrnes E, Brennan-Speranza TC, Levinger I, Eynon N. The association between bone mineral density gene variants and osteocalcin at baseline, and in response to exercise: The Gene SMART study. Bone 2019; 123:23-27. [PMID: 30878522 DOI: 10.1016/j.bone.2019.03.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 02/27/2019] [Accepted: 03/12/2019] [Indexed: 01/03/2023]
Abstract
INTRODUCTION Osteocalcin (OC) is used as a surrogate marker for bone turnover in clinical settings. As bone mineral density (BMD) is largely heritable, we tested the hypothesis that a) bone-associated genetic variants previously identified in Genome-Wide Association Studies (GWAS) and combined into a genetic risk score (GRS) are associated with a) circulating levels of OC and b) the changes in OC following acute exercise. METHODS Total OC (tOC), undercarboxylated OC (ucOC), and carboxylated OC (cOC) were measured in serum of 73 healthy Caucasian males at baseline and after a single bout of high-intensity interval exercise. In addition, genotyping was conducted targeting GWAS variants previously reported to be associated with BMD and then combined into a GRS. Potential associations between the GRS and tOC, ucOC and cOC were tested with linear regressions adjusted for age. RESULTS At baseline none of the individual SNPs associated with tOC, ucOC and cOC. However, when combined, a higher GRS was associated with higher tOC (β = 0.193 ng/mL; p = 0.037; 95% CI = 0.012, 0.361) and cOC (β = 0.188 ng/mL; p = 0.04; 95% CI = 0.004, 0.433). Following exercise, GRS was associated with ucOC levels, (β = 3.864 ng/mL; p-value = 0.008; 95% CI = 1.063, 6.664) but not with tOC or cOC. CONCLUSION Screening for genetic variations may assist in identifying people at risk for abnormal circulating levels of OC at baseline/rest. Genetic variations in BMD predicted the ucOC response to acute exercise indicating that physiological functional response to exercise may be influenced by bone-related gene variants.
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Affiliation(s)
- Danielle Hiam
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, Australia
| | - Sarah Voisin
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, Australia
| | - Xu Yan
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, Australia
| | - Shanie Landen
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, Australia
| | - Macsue Jacques
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, Australia
| | | | - Fiona Munson
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, Australia
| | | | | | - Itamar Levinger
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, Australia.; Science (AIMSS), Department of Medicine-Western Health, Melbourne Medical School, The University of Melbourne, Melbourne, VIC, Australia
| | - Nir Eynon
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, Australia.; Murdoch Childrens Research Institute, Melbourne, Australia.
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10
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Del Coso J, Hiam D, Houweling P, Pérez LM, Eynon N, Lucía A. More than a 'speed gene': ACTN3 R577X genotype, trainability, muscle damage, and the risk for injuries. Eur J Appl Physiol 2018; 119:49-60. [PMID: 30327870 DOI: 10.1007/s00421-018-4010-0] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 10/05/2018] [Indexed: 12/11/2022]
Abstract
A common null polymorphism (rs1815739; R577X) in the gene that codes for α-actinin-3 (ACTN3) has been related to different aspects of exercise performance. Individuals who are homozygous for the X allele are unable to express the α-actinin-3 protein in the muscle as opposed to those with the RX or RR genotype. α-actinin-3 deficiency in the muscle does not result in any disease. However, the different ACTN3 genotypes can modify the functioning of skeletal muscle during exercise through structural, metabolic or signaling changes, as shown in both humans and in the mouse model. Specifically, the ACTN3 RR genotype might favor the ability to generate powerful and forceful muscle contractions. Leading to an overall advantage of the RR genotype for enhanced performance in some speed and power-oriented sports. In addition, RR genotype might also favor the ability to withstand exercise-induced muscle damage, while the beneficial influence of the XX genotype on aerobic exercise performance needs to be validated in human studies. More information is required to unveil the association of ACTN3 genotype with trainability and injury risk during acute or chronic exercise.
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Affiliation(s)
- Juan Del Coso
- Exercise Physiology Laboratory, Camilo José Cela University, Madrid, Spain.
| | - Danielle Hiam
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, Australia
| | | | - Laura M Pérez
- Universidad Europea de Madrid (Faculty of Sport Sciences) and Research Institute i+12, Madrid, Spain.,Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable, Madrid, Spain
| | - Nir Eynon
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, Australia.,Murdoch Childrens Research Institute, Melbourne, Australia
| | - Alejandro Lucía
- Universidad Europea de Madrid (Faculty of Sport Sciences) and Research Institute i+12, Madrid, Spain
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11
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Yan X, Dvir N, Jacques M, Cavalcante L, Papadimitriou ID, Munson F, Kuang J, Garnham A, Landen S, Li J, O'Keefe L, Tirosh O, Bishop DJ, Voisin S, Eynon N. ACE I/D gene variant predicts ACE enzyme content in blood but not the ACE, UCP2, and UCP3 protein content in human skeletal muscle in the Gene SMART study. J Appl Physiol (1985) 2018; 125:923-930. [PMID: 29927735 DOI: 10.1152/japplphysiol.00344.2018] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Angiotensin-converting enzyme (ACE) is expressed in human skeletal muscle. The ACE I/D polymorphism has been associated with athletic performance in some studies. Studies have suggested that the ACE I/D gene variant is associated with ACE enzyme content in serum, and there is an interaction between ACE and uncoupling proteins 2 and 3 (UCP2 and UCP3). However, no studies have explored the effect of ACE I/D on ACE, UCP2, and UCP3 protein content in human skeletal muscle. Utilizing the Gene SMART cohort ( n = 81), we investigated whether the ACE I/D gene variant is associated with ACE enzyme content in blood and ACE, UCP2, and UCP3 protein content in skeletal muscle at baseline and following a session of high-intensity interval exercise (HIIE). Using a stringent and robust statistical analyses, we found that the ACE I/D gene variant was associated with ACE enzyme content in blood ( P < 0.005) at baseline but not the ACE, UCP2, and UCP3 protein content in muscle at baseline. A single session of HIIE tended (0.005 < P < 0.05) to increase blood ACE content immediately postexercise, whereas muscle ACE protein content was lower 3 h after a single session of HIIE ( P < 0.005). Muscle UCP3 protein content decreased immediately after a single session of HIIE ( P < 0.005) and remained low 3 h postexercise. However, those changes in the muscle were not genotype dependent. In conclusion, The ACE I/D gene variant predicts ACE enzyme content in blood but not the ACE, UCP2, and UCP3 protein content of human skeletal muscle. NEW & NOTEWORTHY This paper describes the association between ACE I/D gene variant and ACE protein content in blood and ACE, UCP2, and UCP3 protein content in skeletal muscle at baseline and after exercise in a large cohort of healthy males. Our data suggest that ACE I/D is a strong predictor of blood ACE content but not muscle ACE content.
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Affiliation(s)
- Xu Yan
- Institute for Health and Sport, Victoria University , Melbourne , Australia.,College of Health and Biomedicine, Victoria University , Melbourne , Australia.,Australia Institute for Musculoskeletal Sciences , Melbourne , Australia
| | - Noam Dvir
- Institute for Health and Sport, Victoria University , Melbourne , Australia
| | - Macsue Jacques
- Institute for Health and Sport, Victoria University , Melbourne , Australia
| | - Luiz Cavalcante
- Institute for Health and Sport, Victoria University , Melbourne , Australia
| | | | - Fiona Munson
- Institute for Health and Sport, Victoria University , Melbourne , Australia
| | - Jujiao Kuang
- Institute for Health and Sport, Victoria University , Melbourne , Australia
| | - Andrew Garnham
- Institute for Health and Sport, Victoria University , Melbourne , Australia
| | - Shanie Landen
- Institute for Health and Sport, Victoria University , Melbourne , Australia
| | - Jia Li
- Institute for Health and Sport, Victoria University , Melbourne , Australia.,College of Physical Education, Southwest University , Chongqing , China
| | - Lannie O'Keefe
- Institute for Health and Sport, Victoria University , Melbourne , Australia
| | - Oren Tirosh
- School of Health Sciences, Swinburne University of Technology , Melbourne , Australia
| | - David J Bishop
- Institute for Health and Sport, Victoria University , Melbourne , Australia.,School of Medical and Health Sciences, Edith Cowan University , Joondalup , Australia
| | - Sarah Voisin
- Institute for Health and Sport, Victoria University , Melbourne , Australia
| | - Nir Eynon
- Institute for Health and Sport, Victoria University , Melbourne , Australia.,Murdoch Children's Research Institute , Melbourne , Australia
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12
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Vlahovich N, Hughes DC, Griffiths LR, Wang G, Pitsiladis YP, Pigozzi F, Bachl N, Eynon N. Genetic testing for exercise prescription and injury prevention: AIS-Athlome consortium-FIMS joint statement. BMC Genomics 2017; 18:818. [PMID: 29143596 PMCID: PMC5688405 DOI: 10.1186/s12864-017-4185-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND There has been considerable growth in basic knowledge and understanding of how genes are influencing response to exercise training and predisposition to injuries and chronic diseases. On the basis of this knowledge, clinical genetic tests may in the future allow the personalisation and optimisation of physical activity, thus providing an avenue for increased efficiency of exercise prescription for health and disease. RESULTS This review provides an overview of the current status of genetic testing for the purposes of exercise prescription and injury prevention. As such there are a variety of potential uses for genetic testing, including identification of risks associated with participation in sport and understanding individual response to particular types of exercise. However, there are many challenges remaining before genetic testing has evidence-based practical applications; including adoption of international standards for genomics research, as well as resistance against the agendas driven by direct-to-consumer genetic testing companies. Here we propose a way forward to develop an evidence-based approach to support genetic testing for exercise prescription and injury prevention. CONCLUSION Based on current knowledge, there is no current clinical application for genetic testing in the area of exercise prescription and injury prevention, however the necessary steps are outlined for the development of evidence-based clinical applications involving genetic testing.
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Affiliation(s)
- Nicole Vlahovich
- Australian Institute of Sport (AIS), Australian Sports Commission, Canberra, Australia
| | - David C Hughes
- Australian Institute of Sport (AIS), Australian Sports Commission, Canberra, Australia
- University of Canberra Research Institute for Sport and Exercise (UCRISE), University of Canberra, Canberra, Australia
| | - Lyn R Griffiths
- Genomics Research Centre, Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology, Brisbane, Australia
| | - Guan Wang
- Reference Collaborating Centre of Sports Medicine for Anti-Doping Research, University of Brighton, Eastbourne, UK
| | - Yannis P Pitsiladis
- Reference Collaborating Centre of Sports Medicine for Anti-Doping Research, University of Brighton, Eastbourne, UK
- Department of Movement Human and Health Sciences University of Rome "Foro Italico", Rome, Italy
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
| | - Fabio Pigozzi
- Department of Movement Human and Health Sciences University of Rome "Foro Italico", Rome, Italy
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
| | - Nobert Bachl
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
- Department of Sports and Exercise Physiology, Centre for Sports Science and University Sports of the University of Vienna, Vienna, Austria
| | - Nir Eynon
- Institute of Sport, Exercise and Active Living (ISEAL), College of Sport and Exercise Science, Victoria University, PO Box 14428, Melbourne, VIC, 8001, Australia.
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