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Fernandes ACN, Félix TM. Evaluation of functioning and associated factors in children and adolescents with osteogenesis imperfecta. REVISTA PAULISTA DE PEDIATRIA : ORGAO OFICIAL DA SOCIEDADE DE PEDIATRIA DE SAO PAULO 2024; 43:e2023193. [PMID: 39258640 DOI: 10.1590/1984-0462/2025/43/2023193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 03/29/2024] [Indexed: 09/12/2024]
Abstract
OBJECTIVE The aim of this study was to evaluate the functioning and associated factors in children and adolescents with osteogenesis imperfecta (OI). METHODS This is a cross-sectional study conducted on 30 children and adolescents with OI. Medical records, use of bisphosphonates, socioeconomic status, handgrip strength, balance, joint hypermobility, ambulatory level, and the Pediatric Evaluation of Disability Inventory-Computer Adaptative Test (PEDI-CAT) scores were assessed. Data is presented as mean and standard deviation and Student's t-test or Mann-Whitney U test. Categorical data is presented as frequency and analyzed using Fisher's exact test. Within-group analyses were conducted using ANCOVA or Wilcoxon signed-rank test. Correlations used Kendall's Tau-b test. RESULTS The participants involved in this study were 6-18 years old. The sample was separated into two groups according to disease severity. The moderate/severe OI group (n=10) presented a lower height and muscular strength than the mild group (n=20). Muscle weakness was observed in all participants with OI when compared with the normal population. No differences were observed between the groups in the PEDI-CAT scores except for the mobility domain. There were correlations between the PEDI-CAT mobility domain and the number of fractures, OI type, weight, and balance; there was also a correlation between the PEDI-CAT daily activities, mobility, responsibility, and social/cognitive domains. CONCLUSIONS The findings suggest that children with moderate/severe forms of OI can achieve the same function levels as children with mild OI. Fractures can have a major influence on the functional level, and treatment should focus on the prevention and rehabilitation of these events when they occur.
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Affiliation(s)
| | - Têmis Maria Félix
- Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Hospital de Clinicas de Porto Alegre, Porto Alegre, RS, Brazil
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Marulanda J, Retrouvey JM, Rauch F. Skeletal and Non-skeletal Phenotypes in Children with Osteogenesis Imperfecta. Calcif Tissue Int 2024:10.1007/s00223-024-01276-3. [PMID: 39167113 DOI: 10.1007/s00223-024-01276-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Accepted: 08/12/2024] [Indexed: 08/23/2024]
Abstract
Although fractures are the defining characteristic of osteogenesis imperfecta (OI), the disorder affects many tissues. Here we discuss three facets of the OI phenotype, skeletal growth and development, skeletal muscle weakness and the dental and craniofacial characteristics. Short stature is almost universal in the more severe forms of OI and is probably caused by a combination of direct effects of the underlying genetic defect on growth plates and indirect effects of fractures, bone deformities and scoliosis. Recent studies have developed OI type-specific growth curves, which allow determining whether a given child with OI grows as expected for OI type. Impaired muscle function is an important OI-related phenotype in severe OI. Muscles may be directly affected in OI by collagen type I abnormalities in muscle connective tissue and in the muscle-tendon unit. Indirect effects like bone deformities and lack of physical activity may also contribute to low muscle mass and function. Dental and craniofacial abnormalities are also very common in severe OI and include abnormal tooth structure (dentinogenesis imperfecta), malocclusion, and deformities in the bones of the face and the skull. It is hoped that future treatment approaches will address these OI-related phenotypes.
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Affiliation(s)
- Juliana Marulanda
- Shriners Hospital for Children - Canada, 1003 Decarie, Montreal, QC, H4A 0A9, Canada
| | | | - Frank Rauch
- Shriners Hospital for Children - Canada, 1003 Decarie, Montreal, QC, H4A 0A9, Canada.
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Yuan Y, Xu YF, Feng C, Liu YD, Zhang WS, Huang PJ, Ma KK, Zhou FY, Cheng ZT, Yang Z, Wang L, Cheng XG. Low muscle density in children with osteogenesis imperfecta using opportunistic low-dose chest CT: a case-control study. BMC Musculoskelet Disord 2024; 25:478. [PMID: 38890605 PMCID: PMC11184700 DOI: 10.1186/s12891-024-07596-7] [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: 10/29/2023] [Accepted: 06/12/2024] [Indexed: 06/20/2024] Open
Abstract
BACKGROUND The aim of the study was to investigate the muscle differences in children with osteogenesis imperfecta (OI) using opportunistic low-dose chest CT and to compare different methods for the segmentation of muscle in children. METHODS This single center retrospective study enrolled children with OI and controls undergoing opportunistic low-dose chest CT obtained during the COVID pandemic. From the CT images, muscle size (cross-sectional area) and density (mean Hounsfield Units [HU]) of the trunk muscles were measured at the mid-T4 and the mid-T10 level using two methods, the fixed thresholds and the Gaussian mixture model. The Bland-Altman method was also used to compute the strength of agreement between two methods. Comparison of muscle results between OI and controls were analyzed with Student t tests. RESULTS 20 children with OI (mean age, 9.1 ± 3.3 years, 15 males) and 40 age- and sex-matched controls were enrolled. Mean differences between two methods were good. Children with OI had lower T4 and T10 muscle density than controls measured by the fixed thresholds (41.2 HU vs. 48.0 HU, p < 0.01; 37.3 HU vs. 45.9 HU, p < 0.01). However, children with OI had lower T4 muscle size, T4 muscle density, T10 muscle size and T10 muscle density than controls measured by the Gaussian mixture model (110.9 vs. 127.2 cm2, p = 0.03; 44.6 HU vs. 51.3 HU, p < 0.01; 72.6 vs. 88.0 cm2, p = 0.01; 41.6 HU vs. 50.3 HU, p < 0.01, respectively). CONCLUSIONS Children with OI had lower trunk muscle density indicating that OI might also impair muscle quality. Moreover, the fixed thresholds may not be suitable for segmentation of muscle in children.
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Affiliation(s)
- Yi Yuan
- Department of Radiology, Beijing Jishuitan Hospital, Capital Medical University, National Center for Orthopaedics, No. 31, Xinjiekou East Street, Beijing, 100035, China
| | - Yun-Feng Xu
- Department of Pediatric Orthopaedics, Beijing Jishuitan Hospital, Capital Medical University, National Center for Orthopaedics, No. 31, Xinjiekou East Street, Beijing, 100035, China
| | - Chao Feng
- Department of Pediatric Orthopaedics, Beijing Jishuitan Hospital, Capital Medical University, National Center for Orthopaedics, No. 31, Xinjiekou East Street, Beijing, 100035, China
| | - Yan-Dong Liu
- Department of Radiology, Beijing Jishuitan Hospital, Capital Medical University, National Center for Orthopaedics, No. 31, Xinjiekou East Street, Beijing, 100035, China
| | - Wen-Shuang Zhang
- Department of Radiology, Beijing Jishuitan Hospital, Capital Medical University, National Center for Orthopaedics, No. 31, Xinjiekou East Street, Beijing, 100035, China
| | - Peng-Ju Huang
- Department of Radiology, Beijing Jishuitan Hospital, Capital Medical University, National Center for Orthopaedics, No. 31, Xinjiekou East Street, Beijing, 100035, China
| | - Kang-Kang Ma
- Department of Radiology, Beijing Jishuitan Hospital, Capital Medical University, National Center for Orthopaedics, No. 31, Xinjiekou East Street, Beijing, 100035, China
| | - Feng-Yun Zhou
- Department of Radiology, Beijing Jishuitan Hospital, Capital Medical University, National Center for Orthopaedics, No. 31, Xinjiekou East Street, Beijing, 100035, China
| | - Zi-Tong Cheng
- Department of Radiology, Beijing Jishuitan Hospital, Capital Medical University, National Center for Orthopaedics, No. 31, Xinjiekou East Street, Beijing, 100035, China
| | - Zheng Yang
- Department of Pediatric Orthopaedics, Beijing Jishuitan Hospital, Capital Medical University, National Center for Orthopaedics, No. 31, Xinjiekou East Street, Beijing, 100035, China.
| | - Ling Wang
- Department of Radiology, Beijing Jishuitan Hospital, Capital Medical University, National Center for Orthopaedics, No. 31, Xinjiekou East Street, Beijing, 100035, China.
| | - Xiao-Guang Cheng
- Department of Radiology, Beijing Jishuitan Hospital, Capital Medical University, National Center for Orthopaedics, No. 31, Xinjiekou East Street, Beijing, 100035, China
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Coussens M, Lapauw B, De Wandele I, Malfait F, Pocovi NC, Pacey V, Calders P. Impaired muscle parameters in adults with mild to severe types of osteogenesis imperfecta: a cross-sectional study. J Bone Miner Res 2024; 39:260-270. [PMID: 38477793 DOI: 10.1093/jbmr/zjae003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 11/29/2023] [Accepted: 12/15/2023] [Indexed: 03/14/2024]
Abstract
Impaired muscle parameters may further compromise the already compromised skeleton in individuals with OI. This cross-sectional study aimed to compare muscle function and body composition in adults with various OI types and healthy controls. Sixty-eight adults with OI (mean age 42.2 yr; 27 men) and 68 healthy age- and sex-matched controls were recruited. Maximal isometric muscle force was assessed by handheld dynamometry (hand grip, hip flexors, shoulder abductors, and ankle dorsiflexors), muscle endurance by posture maintenance tests (shoulder abduction, hip flexion, and wall sit), and functional lower limb strength by 30-s chair rise test. In a sub cohort, dynamic muscle function (peak power and force) was assessed by a ground reaction force plate, and lean and fat mass, muscle and fat cross-sectional area (CSA), and muscle density by dual-energy X-ray absorptiometry and peripheral quantitative computed tomography. Multiple linear regression models were fitted with group (OI type I, III, IV/V, or controls), country, sex, and age in the fixed effects part. Overall, adults with various types of OI had lower isometric, endurance, and functional muscle strength (mean difference [MD] = OI type I: 19-43%, OI type IV/V: 25-68%, OI type III: 20-72%) compared to controls. Furthermore, adults with OI type I had lower dynamic muscle function (peak force [MD = 25-29%] and power [MD = 18-60%]), lean mass (MD = 10-17%), muscle CSA (MD = 9-21%), and muscle density (MD = 2-3%) but higher adiposity indices (MD = 24-42%) compared to controls. Functional lower limb strength and maximal muscle force were significantly different between OI types, whereas muscle endurance was not. To conclude, adults with OI present with markedly impaired muscle function which may partially be explained by their altered body composition. Our findings emphasize the need for proper assessment of various muscle parameters and (research into) appropriate and safe muscle strengthening approaches in this population.
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Affiliation(s)
- Marie Coussens
- Department of Rehabilitation Sciences and Physiotherapy, Ghent University, 9000 Ghent, OV, Belgium
| | - Bruno Lapauw
- Unit for Osteoporosis and Metabolic Bone Diseases, Ghent University Hospital, 9000 Ghent, OV, Belgium
- Department of Internal Medicine and Paediatrics, Ghent University, 9000 Ghent, OV, Belgium
- Reference Centre for Rare Bone, Calcium and Phosphate Disorders, Ghent University Hospital, 9000 Ghent, OV, Belgium
| | - Inge De Wandele
- Centre for Medical Genetics, Ghent University Hospital, 9000 Ghent, OV, Belgium
| | - Fransiska Malfait
- Reference Centre for Rare Bone, Calcium and Phosphate Disorders, Ghent University Hospital, 9000 Ghent, OV, Belgium
- Centre for Medical Genetics, Ghent University Hospital, 9000 Ghent, OV, Belgium
| | - Natasha C Pocovi
- Department of Health Sciences, Macquarie University, Sydney, NSW 2109, Australia
| | - Verity Pacey
- Department of Health Sciences, Macquarie University, Sydney, NSW 2109, Australia
| | - Patrick Calders
- Department of Rehabilitation Sciences and Physiotherapy, Ghent University, 9000 Ghent, OV, Belgium
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Zheng WB, Hu J, Sun L, Liu JY, Zhang Q, Wang O, Jiang Y, Xia WB, Xing XP, Li M. Correlation of lipocalin 2 and glycolipid metabolism and body composition in a large cohort of children with osteogenesis imperfecta. J Endocrinol Invest 2024; 47:47-58. [PMID: 37326909 PMCID: PMC10776749 DOI: 10.1007/s40618-023-02121-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 05/18/2023] [Indexed: 06/17/2023]
Abstract
PURPOSE Lipocalin 2 (LCN2) is a newly recognized bone-derived factor that is important in regulation of energy metabolism. We investigated the correlation of serum LCN2 levels and glycolipid metabolism, and body composition in a large cohort of patients with osteogenesis imperfecta (OI). METHODS A total of 204 children with OI and 66 age- and gender-matched healthy children were included. Circulating levels of LCN2 and osteocalcin were measured by enzyme-linked immunosorbent assay. Serum levels of fasting blood glucose (FBG), triglyceride (TG), total cholesterol (TC), and low- and high-density lipoprotein cholesterol (LDL-C, HDL-C) were measured by automated chemical analyzers. The body composition was measured by dual-energy X-ray absorptiometry. Grip strength and timed-up-and-go (TUG) were tested to evaluate the muscle function. RESULTS Serum LCN2 levels were 37.65 ± 23.48 ng/ml in OI children, which was significantly lower than those in healthy control (69.18 ± 35.43 ng/ml, P < 0.001). Body mass index (BMI) and serum FBG level were significantly higher and HDL-C levels were lower in OI children than healthy control (all P < 0.01). Grip strength was significantly lower (P < 0.05), and the TUG was significantly longer in OI patients than healthy control (P < 0.05). Serum LCN2 level was negatively correlated to BMI, FBG, HOMA-IR, HOMA-β, total body, and trunk fat mass percentage, and positively correlated to total body and appendicular lean mass percentage (all P < 0.05). CONCLUSIONS Insulin resistance, hyperglycemia, obesity, and muscle dysfunction are common in OI patients. As a novel osteogenic cytokine, LCN2 deficiency may be relevant to disorders of glucose and lipid metabolism, and dysfunction of muscle in OI patients.
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Affiliation(s)
- W-B Zheng
- Department of Endocrinology, Key Laboratory of Endocrinology, National Health and Family Planning Commission, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shuaifuyuan No. 1, Dongcheng District, Beijing, 100730, China
- Department of Endocrinology, Wuhan Union Hospital, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, China
| | - J Hu
- Department of Endocrinology, Key Laboratory of Endocrinology, National Health and Family Planning Commission, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shuaifuyuan No. 1, Dongcheng District, Beijing, 100730, China
| | - L Sun
- Department of Endocrinology, Key Laboratory of Endocrinology, National Health and Family Planning Commission, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shuaifuyuan No. 1, Dongcheng District, Beijing, 100730, China
| | - J-Y Liu
- Department of Endocrinology, Key Laboratory of Endocrinology, National Health and Family Planning Commission, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shuaifuyuan No. 1, Dongcheng District, Beijing, 100730, China
| | - Q Zhang
- Department of Endocrinology, Key Laboratory of Endocrinology, National Health and Family Planning Commission, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shuaifuyuan No. 1, Dongcheng District, Beijing, 100730, China
| | - O Wang
- Department of Endocrinology, Key Laboratory of Endocrinology, National Health and Family Planning Commission, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shuaifuyuan No. 1, Dongcheng District, Beijing, 100730, China
| | - Y Jiang
- Department of Endocrinology, Key Laboratory of Endocrinology, National Health and Family Planning Commission, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shuaifuyuan No. 1, Dongcheng District, Beijing, 100730, China
| | - W-B Xia
- Department of Endocrinology, Key Laboratory of Endocrinology, National Health and Family Planning Commission, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shuaifuyuan No. 1, Dongcheng District, Beijing, 100730, China
| | - X-P Xing
- Department of Endocrinology, Key Laboratory of Endocrinology, National Health and Family Planning Commission, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shuaifuyuan No. 1, Dongcheng District, Beijing, 100730, China
| | - M Li
- Department of Endocrinology, Key Laboratory of Endocrinology, National Health and Family Planning Commission, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shuaifuyuan No. 1, Dongcheng District, Beijing, 100730, China.
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6
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Sinkam L, Boraschi-Diaz I, Svensson RB, Kjaer M, Komarova SV, Bergeron R, Rauch F, Veilleux LN. Tendon properties in a mouse model of severe osteogenesis imperfecta. Connect Tissue Res 2022; 64:285-293. [PMID: 36576243 DOI: 10.1080/03008207.2022.2161376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
PURPOSE/AIM OF THE STUDY Osteogenesis imperfecta is a heritable bone disorder that is usually caused by mutations in collagen type I encoding genes. The impact of such mutations on tendons, a structure with high collagen type I content, remains largely unexplored. We hypothesized that tendon properties are abnormal in the context of a mutation affecting collagen type I. The main purpose of the study was to assess the anatomical, mechanical, and material tendon properties of Col1a1Jrt/+ mice, a model of severe dominant OI. MATERIALS AND METHODS The Flexor Digitorum Longus (FDL) tendon of Col1a1Jrt/+ mice and wild-type littermates (WT) was assessed with in vitro mechanical testing. RESULTS The results showed that width and thickness of FDL tendons were about 40% larger in WT (p < 0.01) than in Col1a1Jrt/+ mice, whereas the cross-sectional area was 138% larger (p < 0.001). The stiffness, peak- and yield-force were between 160% and 194% higher in WT vs. Col1a1Jrt/+ mice. The material properties did not show significant differences between mouse strains with differences <15% between WT and Col1a1Jrt/+ (p > 0.05). Analysis of the Achilles tendon collagen showed no difference between mice strains for the content but collagen solubility in acetic acid was 66% higher in WT than in Col1a1Jrt/+ (p < 0.001). CONCLUSIONS This study shows that the FDL tendon of Col1a1Jrt/+ mice has reduced mechanical properties but apparently normal material properties. It remains unclear whether the tendon phenotype of Col1a1Jrt/+ mice is secondary to muscle weakness or a direct effect of the Col1a1 mutation or a combination of both.
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Affiliation(s)
- Larissa Sinkam
- Motion Analysis Center, Shriners Hospitals for Children - Canada, Montreal, Quebec, Canada.,Department of Experimental suregery, McGill University, Montreal, Quebec, Canada
| | - Iris Boraschi-Diaz
- Motion Analysis Center, Shriners Hospitals for Children - Canada, Montreal, Quebec, Canada.,Department of Experimental suregery, McGill University, Montreal, Quebec, Canada
| | - René B Svensson
- Institute of Sports Medicine Copenhagen, Department of Orthopedic Surgery, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Øresund, Denmark.,Center for Healthy Aging, Department of Clinical Medicine, University of Copenhagen, Copenhagen, Øresund, Denmark
| | - Michael Kjaer
- Institute of Sports Medicine Copenhagen, Department of Orthopedic Surgery, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Øresund, Denmark.,Center for Healthy Aging, Department of Clinical Medicine, University of Copenhagen, Copenhagen, Øresund, Denmark
| | - Svetlana V Komarova
- Motion Analysis Center, Shriners Hospitals for Children - Canada, Montreal, Quebec, Canada.,Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, Quebec, Canada
| | - Raynald Bergeron
- École de kinésiologie et des sciences de l'activité physique. Faculté de médecine, Université de Montréal, Montreal, Quebec, Canada
| | - Frank Rauch
- Motion Analysis Center, Shriners Hospitals for Children - Canada, Montreal, Quebec, Canada.,Department of Experimental suregery, McGill University, Montreal, Quebec, Canada.,Genetics Unit, Shrines Hospital for Children - Canada, Montreal, Quebec, Canada.,Department of Pediatrics, McGill University, Montreal, Quebec, Canada
| | - Louis-Nicolas Veilleux
- Motion Analysis Center, Shriners Hospitals for Children - Canada, Montreal, Quebec, Canada.,Department of Experimental suregery, McGill University, Montreal, Quebec, Canada
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Gremminger VL, Omosule CL, Crawford TK, Cunningham R, Rector RS, Phillips CL. Skeletal muscle mitochondrial function and whole-body metabolic energetics in the +/G610C mouse model of osteogenesis imperfecta. Mol Genet Metab 2022; 136:315-323. [PMID: 35725939 DOI: 10.1016/j.ymgme.2022.06.004] [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: 08/19/2021] [Revised: 06/08/2022] [Accepted: 06/09/2022] [Indexed: 11/17/2022]
Abstract
Osteogenesis imperfecta (OI) is rare heritable connective tissue disorder that most often arises from mutations in the type I collagen genes, COL1A1 and COL1A2, displaying a range of symptoms including skeletal fragility, short stature, blue-gray sclera, and muscle weakness. Recent investigations into the intrinsic muscle weakness have demonstrated reduced contractile generating force in some murine models consistent with patient population studies, as well as alterations in whole body bioenergetics. Muscle weakness is found in approximately 80% of patients and has been equivocal in OI mouse models. Understanding the mechanism responsible for OI muscle weakness is crucial in building our knowledge of muscle bone cross-talk via mechanotransduction and biochemical signaling, and for potential novel therapeutic approaches. In this study we evaluated skeletal muscle mitochondrial function and whole-body bioenergetics in the heterozygous +/G610C (Amish) mouse modeling mild/moderate human type I/VI OI and minimal skeletal muscle weakness. Our analyses revealed several changes in the +/G610C mouse relative to their wildtype littermates including reduced state 3 mitochondrial respiration, increased mitochondrial citrate synthase activity, increased Parkin and p62 protein content, and an increased respiratory quotient. These changes may represent the ability of the +/G610C mouse to compensate for mitochondrial and metabolic changes that may arise due to type I collagen mutations and may also account for the lack of muscle weakness observed in the +/G610C model relative to the more severe OI models.
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Affiliation(s)
- Victoria L Gremminger
- Department of Biochemistry, University of Missouri, Columbia, MO 65211, United States of America
| | - Catherine L Omosule
- Department of Biochemistry, University of Missouri, Columbia, MO 65211, United States of America
| | - Tara K Crawford
- Department of Biochemistry, University of Missouri, Columbia, MO 65211, United States of America
| | - Rory Cunningham
- Departments of Nutrition and Exercise Physiology and Medicine-GI, University of Missouri, Research Service-Harry S Truman Memorial VA Hospital, Columbia, MO 65201, United States of America
| | - R Scott Rector
- Departments of Nutrition and Exercise Physiology and Medicine-GI, University of Missouri, Research Service-Harry S Truman Memorial VA Hospital, Columbia, MO 65201, United States of America
| | - Charlotte L Phillips
- Department of Biochemistry, University of Missouri, Columbia, MO 65211, United States of America; Department of Child Health, University of Missouri, Columbia, MO 65212, United States of America.
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8
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Functional Independence of Taiwanese Children with Osteogenesis Imperfecta. J Pers Med 2022; 12:jpm12081205. [PMID: 35893298 PMCID: PMC9394323 DOI: 10.3390/jpm12081205] [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: 06/03/2022] [Revised: 07/21/2022] [Accepted: 07/22/2022] [Indexed: 11/17/2022] Open
Abstract
Osteogenesis imperfecta (OI) is a group of rare genetic disorders that affect bone formation. Patients with OI present mainly with increased bone fragility and bone deformities. Twenty-seven Taiwanese children between 2 and 21 years of age with OI and their parents were recruited at MacKay Memorial Hospital from January 2013 to December 2019. We used the Functional Independence Measure for Children (WeeFIM) questionnaire to assess the functional independence of the children and describe any functional limitations or additional burden of daily care. Out of a potential score of 126, the mean total WeeFIM score was 113.7. There was a statistically significant difference between the scores of type I, type III and type IV OI (121.88 [SD 7.01] vs. 80.8 [SD 26.25] vs. 119.17 [SD 10.89]; p < 0.001). There were no statistically significant differences between the scores in different age groups, the male and female participants, and patients with pathogenic variants in COL1A1 and COL1A2. The mean scores for the self-care, mobility, and cognition domains were 48.78 (maximum 56, mean quotient 91.14%), 30.44 (maximum 35, mean quotient 87.12%), and 34.44 (maximum 35, mean quotient 99.05%), respectively. The best performance was in the cognition domain (mean quotient 99.05%), and the worst was in the mobility domain (mean quotient 87.12%). There were no statistically significant correlations between WeeFIM scores and age, or age when symptoms began. The total WeeFIM score and 13 subscores for the self-care and mobility domains were all positively correlated with body height (p < 0.01). The correlation was lowest for bowel and walking/wheelchair tasks, and the highest for bathing and dressing-upper tasks. For tasks in bathing, over 40% of the patients needed help. For tasks in the cognition domain, most patients required no help. For the Taiwanese children with OI, some support and supervision were required for self-care and mobility tasks, and the functional independence in these two domains was correlated with body height and disease types. The WeeFIM questionnaire may be a useful tool to assess the functional strengths and weaknesses of children with OI.
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Abstract
Osteogenesis imperfecta (OI) is a disease characterised by altered bone tissue material properties together with abnormal micro and macro-architecture and thus bone fragility, increased bone turnover and hyperosteocytosis. Increasingly appreciated are the soft tissue changes, sarcopenia in particular. Approaches to treatment are now multidisciplinary, with bisphosphonates having been the primary pharmacological intervention over the last 20 years. Whilst meta-analyses suggest that anti-fracture efficacy across the life course is equivocal, there is good evidence that for children bisphosphonates reduce fracture risk, increase vertebral size and improve vertebral shape, as well as improving motor function and mobility. The genetics of OI continues to provide insights into the molecular pathogenesis of the disease, although the pathophysiology is less clear. The complexity of the multi-scale interactions of bone tissue with cellular function are gradually being disentangled, but the fundamental question of why increased tissue brittleness should be associated with so many other changes is unclear; ER stress, pro-inflammatory cytokines, accelerated senesence and altered matrix component release might all contribute, but a unifying hypothesis remains elusive. New approaches to therapy are focussed on increasing bone mass, following the paradigm established by the treatment of postmenopausal osteoporosis. For adults, this brings the prospect of restoring previously lost bone - for children, particularly at the severe end of the spectrum, the possibility of further reducing fracture frequency and possibly altering growth and long term function are attractive. The alternatives that might affect tissue brittleness are autophagy enhancement (through the removal of abnormal type I collagen aggregates) and stem cell transplantation - both still at the preclinical stage of assessment. Preclinical assessment is not supportive of targeting inflammatory pathways, although understanding why TGFb signalling is increased, and whether that presents a treatment target in OI, remains to be established.
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Affiliation(s)
- Fawaz Arshad
- Academic Unit of Child Health, Sheffield Children's Hospital, Department of Oncology and Metabolism, University of Sheffield, S10 2TH, UK
| | - Nick Bishop
- Academic Unit of Child Health, Sheffield Children's Hospital, Department of Oncology and Metabolism, University of Sheffield, S10 2TH, UK.
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10
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Moffatt P, Boraschi-Diaz I, Bardai G, Rauch F. Muscle transcriptome in mouse models of osteogenesis imperfecta. Bone 2021; 148:115940. [PMID: 33812081 DOI: 10.1016/j.bone.2021.115940] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/24/2021] [Accepted: 03/26/2021] [Indexed: 12/11/2022]
Abstract
Osteogenesis imperfecta (OI) is a heritable connective tissue disorder that is most often caused by mutations in collagen type I encoding genes. Even though bone fragility is the most conspicuous finding in OI, the muscle system is also affected. In the present study we explored the muscle phenotype related to collagen type I mutations on the transcriptome level. RNA sequencing was performed in gastrocnemius muscles of homozygous oim mice and of heterozygous Jrt mice, two models of severe OI. We found that oim and Jrt mice shared 27 differentially expressed genes, of which 11 were concordantly upregulated and 15 concordantly downregulated. Gene Set Enrichment Analysis revealed that in both oim and Jrt mice, genes involved in 'metabolism of lipids' were significantly enriched among upregulated genes. In addition, several genes coding for extracellular matrix components were upregulated in both oim and Jrt mice. Among downregulated genes, genes involved in 'muscle contraction' were enriched in both OI mouse models. These 'muscle contraction' genes coded for slow-twitch type I muscle fiber components. Another shared downregulated gene was Mss51, a metabolic stress-inducible factor that is found in mitochondria. These data show that two mouse models of severe OI share abnormalities in the expression of genes that code for extracellular matrix proteins, lipid and energy metabolism and structural proteins of type I muscle fibers. The muscle disturbances resulting from the collagen type I mutations in these mouse models could be viewed as a mild form of muscle dystrophy.
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Affiliation(s)
- Pierre Moffatt
- Shriners Hospital for Children-Canada, Montreal, Quebec, Canada; Department of Human Genetics, McGill University, Montreal, Quebec, Canada
| | - Iris Boraschi-Diaz
- Shriners Hospital for Children-Canada, Montreal, Quebec, Canada; Department of Pediatrics, McGill University, Montreal, Quebec, Canada
| | - Ghalib Bardai
- Shriners Hospital for Children-Canada, Montreal, Quebec, Canada
| | - Frank Rauch
- Shriners Hospital for Children-Canada, Montreal, Quebec, Canada; Department of Pediatrics, McGill University, Montreal, Quebec, Canada.
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Tauer JT, Boraschi-Diaz I, Al Rifai O, Rauch F, Ferron M, Komarova SV. Male but not female mice with severe osteogenesis imperfecta are partially protected from high-fat diet-induced obesity. Mol Genet Metab 2021; 133:211-221. [PMID: 33814269 DOI: 10.1016/j.ymgme.2021.03.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 02/16/2021] [Accepted: 03/24/2021] [Indexed: 01/07/2023]
Abstract
Previously we have shown that young mice with a dominant severe form of osteogenesis imperfecta (OI), caused by mutated collagen type I, exhibit an altered glucose/insulin metabolism and energy expenditure along with elevated levels of osteocalcin, a bone-derived hormone involved in the regulation of whole-body metabolism. This study aimed to examine the long-term effects of a western diet in these OI mice. Male and female OI mice and wild type littermates (WT) were fed a high-fat diet (HFD) or a matched low-fat diet (LFD) for 26 weeks. HFD-induced obesity was observed in male and female WT and female OI mice, but not in male OI mice. HFD-fed WT and OI mice of both sexes developed hyperglycemia and glucose intolerance, but the degree of glucose intolerance was significantly lower in male and female OI mice compared to sex- and diet-matched WT mice. Indirect calorimetry revealed increased movement of male OI mice on HFD compared to LFD and, while HFD lowered energy expenditure in WT mice, energy expenditure was not changed in OI mice. Further, HFD-fed male OI mice demonstrated a diet-induced increased expression of the thermogenesis genes, Ucp1 and Pgc1α, in brown adipose tissue. On LFD, total and Gla-13 osteocalcin levels were similar in 30-week-old WT and OI mice, but on HFD, both were significantly higher in OI mice than WT. Thus, male OI mice respond to HFD with increased movement, energy expenditure, brown adipose tissue thermogenesis, and higher levels of osteocalcin, resulting in partial protection against HFD-induced obesity.
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Affiliation(s)
- Josephine T Tauer
- Faculty of Dentistry, McGill University, Montreal, Quebec, Canada; Shriners Hospital for Children-Canada, Montreal, Quebec, Canada.
| | - Iris Boraschi-Diaz
- Shriners Hospital for Children-Canada, Montreal, Quebec, Canada; Department of Pediatrics, McGill University, Montreal, Quebec, Canada
| | - Omar Al Rifai
- Unité de Recherche en Physiologie Moléculaire, Institut de Recherches Cliniques de Montréal, Montreal, Quebec, Canada
| | - Frank Rauch
- Shriners Hospital for Children-Canada, Montreal, Quebec, Canada; Department of Pediatrics, McGill University, Montreal, Quebec, Canada
| | - Mathieu Ferron
- Unité de Recherche en Physiologie Moléculaire, Institut de Recherches Cliniques de Montréal, Montreal, Quebec, Canada; Départements de Médecine et de Biochimie et Médecine Moléculaire, Université de Montréal, Montreal, Quebec, Canada
| | - Svetlana V Komarova
- Faculty of Dentistry, McGill University, Montreal, Quebec, Canada; Shriners Hospital for Children-Canada, Montreal, Quebec, Canada
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Gremminger VL, Phillips CL. Impact of Intrinsic Muscle Weakness on Muscle-Bone Crosstalk in Osteogenesis Imperfecta. Int J Mol Sci 2021; 22:4963. [PMID: 34066978 PMCID: PMC8125032 DOI: 10.3390/ijms22094963] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 04/22/2021] [Accepted: 04/30/2021] [Indexed: 01/10/2023] Open
Abstract
Bone and muscle are highly synergistic tissues that communicate extensively via mechanotransduction and biochemical signaling. Osteogenesis imperfecta (OI) is a heritable connective tissue disorder of severe bone fragility and recently recognized skeletal muscle weakness. The presence of impaired bone and muscle in OI leads to a continuous cycle of altered muscle-bone crosstalk with weak muscles further compromising bone and vice versa. Currently, there is no cure for OI and understanding the pathogenesis of the skeletal muscle weakness in relation to the bone pathogenesis of OI in light of the critical role of muscle-bone crosstalk is essential to developing and identifying novel therapeutic targets and strategies for OI. This review will highlight how impaired skeletal muscle function contributes to the pathophysiology of OI and how this phenomenon further perpetuates bone fragility.
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Affiliation(s)
| | - Charlotte L. Phillips
- Department of Biochemistry, University of Missouri, Columbia, MO 65211, USA;
- Department of Child Health, University of Missouri, Columbia, MO 65212, USA
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13
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Gremminger VL, Harrelson EN, Crawford TK, Ohler A, Schulz LC, Rector RS, Phillips CL. Skeletal muscle specific mitochondrial dysfunction and altered energy metabolism in a murine model (oim/oim) of severe osteogenesis imperfecta. Mol Genet Metab 2021; 132:244-253. [PMID: 33674196 PMCID: PMC8135105 DOI: 10.1016/j.ymgme.2021.02.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 02/05/2021] [Accepted: 02/13/2021] [Indexed: 12/24/2022]
Abstract
Osteogenesis imperfecta (OI) is a heritable connective tissue disorder with patients exhibiting bone fragility and muscle weakness. The synergistic biochemical and biomechanical relationship between bone and muscle is a critical potential therapeutic target, such that muscle weakness should not be ignored. Previous studies demonstrated mitochondrial dysfunction in the skeletal muscle of oim/oim mice, which model a severe human type III OI. Here, we further characterize this mitochondrial dysfunction and evaluate several parameters of whole body and skeletal muscle metabolism. We demonstrate reduced mitochondrial respiration in female gastrocnemius muscle, but not in liver or heart mitochondria, suggesting that mitochondrial dysfunction is not global in the oim/oim mouse. Myosin heavy chain fiber type distributions were altered in the oim/oim soleus muscle with a decrease (-33 to 50%) in type I myofibers and an increase (+31%) in type IIa myofibers relative to their wildtype (WT) littermates. Additionally, altered body composition and increased energy expenditure were observed oim/oim mice relative to WT littermates. These results suggest that skeletal muscle mitochondrial dysfunction is linked to whole body metabolic alterations and to skeletal muscle weakness in the oim/oim mouse.
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Affiliation(s)
- Victoria L Gremminger
- Department of Biochemistry, University of Missouri, Columbia, MO 65211, United States of America
| | - Emily N Harrelson
- Department of Biochemistry, University of Missouri, Columbia, MO 65211, United States of America
| | - Tara K Crawford
- Department of Biochemistry, University of Missouri, Columbia, MO 65211, United States of America
| | - Adrienne Ohler
- Department of Child Health, University of Missouri, Columbia, MO 65211, United States of America
| | - Laura C Schulz
- Department of Obstetrics, Gynecology, and Women's Health, University of Missouri, Columbia, MO 65211, United States of America
| | - R Scott Rector
- Departments of Nutrition and Exercise Physiology and Medicine-GI, University of Missouri, Harry S Truman Memorial VA Hospital, Columbia, MO 65211, United States of America
| | - Charlotte L Phillips
- Department of Biochemistry, University of Missouri, Columbia, MO 65211, United States of America; Department of Child Health, University of Missouri, Columbia, MO 65211, United States of America.
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Omosule CL, Phillips CL. Deciphering Myostatin's Regulatory, Metabolic, and Developmental Influence in Skeletal Diseases. Front Genet 2021; 12:662908. [PMID: 33854530 PMCID: PMC8039523 DOI: 10.3389/fgene.2021.662908] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 03/05/2021] [Indexed: 01/08/2023] Open
Abstract
Current research findings in humans and other mammalian and non-mammalian species support the potent regulatory role of myostatin in the morphology and function of muscle as well as cellular differentiation and metabolism, with real-life implications in agricultural meat production and human disease. Myostatin null mice (mstn−/−) exhibit skeletal muscle fiber hyperplasia and hypertrophy whereas myostatin deficiency in larger mammals like sheep and pigs engender muscle fiber hyperplasia. Myostatin’s impact extends beyond muscles, with alterations in myostatin present in the pathophysiology of myocardial infarctions, inflammation, insulin resistance, diabetes, aging, cancer cachexia, and musculoskeletal disease. In this review, we explore myostatin’s role in skeletal integrity and bone cell biology either due to direct biochemical signaling or indirect mechanisms of mechanotransduction. In vitro, myostatin inhibits osteoblast differentiation and stimulates osteoclast activity in a dose-dependent manner. Mice deficient in myostatin also have decreased osteoclast numbers, increased cortical thickness, cortical tissue mineral density in the tibia, and increased vertebral bone mineral density. Further, we explore the implications of these biochemical and biomechanical influences of myostatin signaling in the pathophysiology of human disorders that involve musculoskeletal degeneration. The pharmacological inhibition of myostatin directly or via decoy receptors has revealed improvements in muscle and bone properties in mouse models of osteogenesis imperfecta, osteoporosis, osteoarthritis, Duchenne muscular dystrophy, and diabetes. However, recent disappointing clinical trial outcomes of induced myostatin inhibition in diseases with significant neuromuscular wasting and atrophy reiterate complexity and further need for exploration of the translational application of myostatin inhibition in humans.
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Affiliation(s)
- Catherine L Omosule
- Department of Biochemistry, University of Missouri, Columbia, MO, United States
| | - Charlotte L Phillips
- Department of Biochemistry, University of Missouri, Columbia, MO, United States.,Department of Child Health, University of Missouri, Columbia, MO, United States
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Temporomandibular Joint and Cervical Spine Mobility Assessment in the Prevention of Temporomandibular Disorders in Children with Osteogenesis Imperfecta: A Pilot Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18031076. [PMID: 33530378 PMCID: PMC7908169 DOI: 10.3390/ijerph18031076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 01/07/2021] [Accepted: 01/19/2021] [Indexed: 11/18/2022]
Abstract
Osteogenesis imperfecta is a heterogeneous group of hereditary disorders of connective tissue diseases characterized by increased bone fragility, low growth, sometimes accompanied by abnormalities within the dentine, blue sclera, and partial or total hearing impairment. The changes may affect all joints, including the cervical spine and temporomandibular joints in the future, resulting in pain. The aim of the present study was to assess whether there is a relationship between the active range of motion of the cervical spine and the mobility of temporomandibular joints due to differential diagnosis in children with osteogenesis imperfecta, and to present a prevention algorithm for temporomandibular disorders. The study involved a group of 34 children with osteogenesis imperfecta, and the control group included 23 children (age 9.1 ± 3.8 years). Data were collected through an interview based on the author’s questionnaire, and the physical examination consisted in measuring the mobility of the cervical spine using an inclinometer (Cervical Range of Motion Instrument), the Helkimo scale, and linear measurements. In children with congenital bone fragility, there were acoustic symptoms from the temporomandibular joints more often than in healthy children. A correlation was found between the mobility of the cervical spine and temporomandibular joints in the study group. In the case of detecting irregularities in the temporomandibular joints, children were ordered to perform jaw-tongue coordination exercises.
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Gremminger VL, Jeong Y, Cunningham RP, Meers GM, Rector RS, Phillips CL. Compromised Exercise Capacity and Mitochondrial Dysfunction in the Osteogenesis Imperfecta Murine (oim) Mouse Model. J Bone Miner Res 2019; 34:1646-1659. [PMID: 30908713 PMCID: PMC6744299 DOI: 10.1002/jbmr.3732] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 03/13/2019] [Accepted: 03/18/2019] [Indexed: 11/09/2022]
Abstract
Osteogenesis imperfecta (OI) is a heritable connective tissue disorder that most often arises from type I collagen-COL1A1 and COL1A2-gene defects leading to skeletal fragility, short stature, blue-gray sclera, and muscle weakness. Relative to the skeletal fragility, muscle weakness is much less understood. Recent investigations into OI muscle weakness in both patients and mouse models have revealed the presence of an inherent muscle pathology. Understanding the mechanisms responsible for OI muscle weakness is critical, particularly in light of the extensive cross-talk between muscle and bone via mechanotransduction and biochemical signaling. In the following study we initially subjected WT and oim/oim mice, modeling severe human OI type III, to either weight-bearing (voluntary wheel-running) or non-weight-bearing (swimming) exercise regimens as a modality to improve muscle strength and ultimately bone strength. The oim/oim mice ran only 35% to 42% of the distance run by age- and sex-matched WT mice and exhibited little improvement with either exercise regimen. Upon further investigation, we determined that oim/oim gastrocnemius muscle exhibited severe mitochondrial dysfunction as characterized by a 52% to 65% decrease in mitochondrial respiration rates, alterations in markers of mitochondrial biogenesis, mitophagy, and the electron transport chain components, as well as decreased mitochondrial citrate synthase activity, relative to age- and sex-matched WT gastrocnemius muscle. Thus, mitochondrial dysfunction in the oim/oim mouse likely contributes to compromised muscle function and reduced physical activity levels. © 2019 American Society for Bone and Mineral Research.
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Affiliation(s)
| | - Youngjae Jeong
- Department of Biochemistry, University of Missouri, Columbia, Missouri, 65211
| | - Rory P. Cunningham
- Departments of Nutrition and Exercise Physiology and Medicine-GI, University of Missouri; Research Service-Harry S Truman Memorial VA Hospital, Columbia, MO 65201
| | - Grace M. Meers
- Departments of Nutrition and Exercise Physiology and Medicine-GI, University of Missouri; Research Service-Harry S Truman Memorial VA Hospital, Columbia, MO 65201
| | - R. Scott Rector
- Departments of Nutrition and Exercise Physiology and Medicine-GI, University of Missouri; Research Service-Harry S Truman Memorial VA Hospital, Columbia, MO 65201
| | - Charlotte L. Phillips
- Department of Biochemistry, University of Missouri, Columbia, Missouri, 65211
- Department of Child Health, University of Missouri, Columbia, Missouri, 65211
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Tauer JT, Robinson ME, Rauch F. Osteogenesis Imperfecta: New Perspectives From Clinical and Translational Research. JBMR Plus 2019; 3:e10174. [PMID: 31485550 PMCID: PMC6715783 DOI: 10.1002/jbm4.10174] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 01/04/2019] [Accepted: 01/16/2019] [Indexed: 12/30/2022] Open
Abstract
Osteogenesis imperfecta (OI) is a monogenic bone fragility disorder that usually is caused by mutations in one of the two genes coding for collagen type I alpha chains, COL1A1 or COL1A2. Mutations in at least 18 other genes can also lead to an OI phenotype. As genetic testing is more widely used, mutations in these genes are also more frequently discovered in individuals who have a propensity for fractures, but who do not have other typical clinical characteristics of OI. Intravenous bisphosphonate therapy is still the most widely used drug treatment approach. Preclinical studies in OI mouse models have shown encouraging effects when the antiresorptive effect of a bisphosphonate was combined with bone anabolic therapy using a sclerostin antibody. Other novel experimental treatment approaches include inhibition of transforming growth factor beta signaling with a neutralizing antibody and the inhibition of myostatin and activin A by a soluble activin receptor 2B. © 2019 The Authors. JBMR Plus published by Wiley Periodicals, Inc. on behalf of American Society for Bone and Mineral Research
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Affiliation(s)
| | | | - Frank Rauch
- Shriners Hospital for Children Montreal Quebec Canada
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18
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Mueller B, Engelbert R, Baratta-Ziska F, Bartels B, Blanc N, Brizola E, Fraschini P, Hill C, Marr C, Mills L, Montpetit K, Pacey V, Molina MR, Schuuring M, Verhille C, de Vries O, Yeung EHK, Semler O. Consensus statement on physical rehabilitation in children and adolescents with osteogenesis imperfecta. Orphanet J Rare Dis 2018; 13:158. [PMID: 30201006 PMCID: PMC6131938 DOI: 10.1186/s13023-018-0905-4] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 08/30/2018] [Indexed: 02/05/2023] Open
Abstract
On the occasion of the 13th International Conference on Osteogenesis imperfecta in August 2017 an expert panel was convened to develop an international consensus paper regarding physical rehabilitation in children and adolescents with Osteogenesis imperfecta. The experts were chosen based on their clinical experience with children with osteogenesis imperfecta and were identified by sending out questionnaires to specialized centers and patient organizations in 26 different countries. The final expert-group included 16 representatives (12 physiotherapists, two occupational therapists and two medical doctors) from 14 countries. Within the framework of a collation of personal experiences and the results of a literature search, the participating physiotherapists, occupational therapists and medical doctors formulated 17 expert-statements on physical rehabilitation in patients aged 0–18 years with osteogenesis imperfecta.
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Affiliation(s)
- Brigitte Mueller
- Unireha, University of Cologne, Center of Prevention and Rehabilitation, Cologne, Germany.,University of Cologne, Children's Hospital, Kerpenerstraße 62, 50931, Cologne, Germany
| | - Raoul Engelbert
- ACHIEVE, Center for Applied Research, Faculty of Health, University of Applied Sciences Amsterdam, Amsterdam, The Netherlands.,Department of Rehabilitation, Academic Medical Centre, University of Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | | | - Bart Bartels
- Child development and exercise center, Wilhelmina´s Children Hospital, University Medical Center Utrecht, Utrecht, The Netherlands
| | | | - Evelise Brizola
- Medical Genetics Service, Hospital de Clinicas de Porto Alegre, Porto Alegre, Brazil
| | | | - Claire Hill
- Sheffield Children's NHS Foundation Trust, Sheffield, UK
| | - Caroline Marr
- Sheffield Children's NHS Foundation Trust, Sheffield, UK
| | - Lisa Mills
- Bristol Royal Hospital for Children, University Hospitals Bristol NHS Foundation Trust, Bristol, UK
| | | | - Verity Pacey
- The Children's Hospital at Westmead, Sydney, Australia.,Macquarie University, Sydney, Australia
| | | | - Marleen Schuuring
- Child development and exercise center, Wilhelmina´s Children Hospital, University Medical Center Utrecht, Utrecht, The Netherlands
| | | | - Olga de Vries
- National Resource center for rare disorders. Part of the National Advisory Unit on Rare Disorders (NKSD), Sunnaas Rehabilitation Hospital, Nesodden, Norway
| | | | - Oliver Semler
- University of Cologne, Children's Hospital, Kerpenerstraße 62, 50931, Cologne, Germany.
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Abstract
PURPOSE OF REVIEW Osteogenesis imperfecta (OI) is a hereditary connective tissue disorder of skeletal fragility and more recently muscle weakness. This review highlights our current knowledge of the impact of compromised OI muscle function on muscle-bone interactions and skeletal strength in OI. RECENT FINDINGS The ramifications of inherent muscle weakness in OI muscle-bone interactions are just beginning to be elucidated. Studies in patients and in OI mouse models implicate altered mechanosensing, energy metabolism, mitochondrial dysfunction, and paracrine/endocrine crosstalk in the pathogenesis of OI. Compromised muscle-bone unit impacts mechanosensing and the ability of OI muscle and bone to respond to physiotherapeutic and pharmacologic treatment strategies. Muscle and bone are both compromised in OI, making it essential to understand the mechanisms responsible for both impaired muscle and bone functions and their interdependence, as this will expand and drive new physiotherapeutic and pharmacological approaches to treat OI and other musculoskeletal disorders.
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Affiliation(s)
- Charlotte L Phillips
- Department of Biochemistry, University of Missouri, 117 Schweitzer Hall, Columbia, MO, 65211, USA.
- Department of Child Health, University of Missouri, Columbia, MO, 65211, USA.
| | - Youngjae Jeong
- Department of Biochemistry, University of Missouri, 117 Schweitzer Hall, Columbia, MO, 65211, USA
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