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Wang YP, Qin SL, Yang S, Xu YF, Han PF, Liu AH, Hou KD, He JP. Association of IL‑6 and MMP‑3 gene polymorphisms with adolescent idiopathic scoliosis: A systematic review and meta‑analysis. Exp Ther Med 2024; 27:267. [PMID: 38756907 PMCID: PMC11097290 DOI: 10.3892/etm.2024.12555] [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: 09/19/2023] [Accepted: 04/03/2024] [Indexed: 05/18/2024] Open
Abstract
The pathogenesis of adolescent idiopathic scoliosis (AIS) remains unclear. It has been found that interleukin-6 (IL-6) rs1800795 locus and matrix metalloproteinase-3 (MMP-3) rs3025058 locus gene polymorphisms may be associated with AIS susceptibility, which has been controversial and needs to be further confirmed by updated meta-analysis. The aim of the present study was to investigate the association of MMP-3 rs3025058 and IL-6 rs1800795 single nucleotide polymorphisms (SNPs) with susceptibility to AIS. All relevant articles that met the criteria were retrieved and included, and the publication dates were limited from January 2005 to December 2023. The allele frequencies and different genotype frequencies of IL-6 rs1800795 and MMP-3 rs3025058 loci in each study were extracted and statistically analyzed by ReviewManager 5.4 software, and the odds ratio (OR) and 95% confidence interval (95% CI) of different genetic models were calculated. The results of the meta-analysis showed that there was no significant association between the gene polymorphism of IL-6 rs1800795 locus and the pathogenesis of AIS. The allele 5A and genotype 5A5A of MMP-3 rs3025058 SNP were associated with AIS susceptibility (5A vs. 6A, OR=1.18; 95% CI, 1.04-1.33; 5A5A vs. 6A6A, OR=1.65; 95% CI, 1.23-2.21; and 5A5A vs. 5A6A + 6A6A, OR=1.54; 95% CI, 1.19-1.99). Results of subgroup analysis revealed that the allele 5A and genotype 5A5A of MMP-3 rs3025058 SNP were associated with AIS susceptibility in the Caucasian population, and the susceptibility of AIS was associated with the genotype 5A5A of MMP-3 rs3025058 SNP in an Asian population. There was no significant association between the gene polymorphism of IL-6 rs1800795 locus and the pathogenesis of AIS, while the allele 5A of MMP-3 rs3025058 locus was associated with the susceptibility to AIS, especially in the Caucasian population.
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Affiliation(s)
- Yue-Peng Wang
- Department of Orthopaedics, Beijing Friendship Hospital Pinggu Campus, Capital Medical University, Beijing 101200, P.R. China
| | - Shi-Lei Qin
- Department of Orthopaedics, Changzhi Yunfeng Hospital, Changzhi, Shanxi 046000, P.R. China
| | - Su Yang
- Department of Orthopaedics, Heping Hospital Affiliated to Changzhi Medical College, Changzhi, Shanxi 046000, P.R. China
| | - Yun-Feng Xu
- Department of Orthopaedics, Changzhi Yunfeng Hospital, Changzhi, Shanxi 046000, P.R. China
| | - Peng-Fei Han
- Department of Orthopaedics, Heping Hospital Affiliated to Changzhi Medical College, Changzhi, Shanxi 046000, P.R. China
| | - Ai-Hua Liu
- Department of Orthopaedics, Beijing Friendship Hospital Pinggu Campus, Capital Medical University, Beijing 101200, P.R. China
| | - Ke-Dong Hou
- Department of Orthopaedics, Beijing Friendship Hospital Pinggu Campus, Capital Medical University, Beijing 101200, P.R. China
| | - Jian-Ping He
- Department of Orthopaedics, Beijing Friendship Hospital Pinggu Campus, Capital Medical University, Beijing 101200, P.R. China
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Najjar D, Chikhaoui A, Zarrouk S, Azouz S, Kamoun W, Nassib N, Bouchoucha S, Yacoub-Youssef H. Combining Gene Mutation with Expression of Candidate Genes to Improve Diagnosis of Escobar Syndrome. Genes (Basel) 2022; 13:genes13101748. [PMID: 36292632 PMCID: PMC9601381 DOI: 10.3390/genes13101748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 09/21/2022] [Accepted: 09/22/2022] [Indexed: 11/24/2022] Open
Abstract
Escobar syndrome is a rare, autosomal recessive disorder that affects the musculoskeletal system and the skin. Mutations in the CHRNG and TPM2 genes are associated with this pathology. In this study, we conducted a clinical and genetic investigation of five patients and also explored via in silico and gene expression analysis their phenotypic variability. In detail, we identified a patient with a novel composite heterozygous variant of the CHRNG gene and two recurrent mutations in both CHRNG and TPM2 in the rest of the patients. As for the clinical particularities, we reported a list of modifier genes in a patient suffering from myopathy. Moreover, we identified decreased expression of IGF-1, which could be related to the short stature of Escobar patients, and increased expression of POLG1 specific to patients with TPM2 mutation. Through this study, we identified the genetic spectrum of Escobar syndrome in the Tunisian population, which will allow setting up genetic counseling and prenatal diagnosis for families at risk. In addition, we highlighted relevant biomarkers that could differentiate between patients with different genetic defects.
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Affiliation(s)
- Dorra Najjar
- Laboratory of Biomedical Genomics and Oncogenetics (LR16IPT05), Institut Pasteur de Tunis, Université Tunis El Manar, Tunis 1002, Tunisia
| | - Asma Chikhaoui
- Laboratory of Biomedical Genomics and Oncogenetics (LR16IPT05), Institut Pasteur de Tunis, Université Tunis El Manar, Tunis 1002, Tunisia
| | - Sinda Zarrouk
- Genomics Platform, Institut Pasteur de Tunis (IPT), Tunis-Belvédère, Tunis 1002, Tunisia
| | - Saifeddine Azouz
- Genomics Platform, Institut Pasteur de Tunis (IPT), Tunis-Belvédère, Tunis 1002, Tunisia
| | - Wafa Kamoun
- Laboratory of Biomedical Genomics and Oncogenetics (LR16IPT05), Institut Pasteur de Tunis, Université Tunis El Manar, Tunis 1002, Tunisia
| | - Nabil Nassib
- Service Orthopédie Pédiatrique, Hôpital d’Enfant Béchir Hamza, Tunis 1000, Tunisia
| | - Sami Bouchoucha
- Service Orthopédie Pédiatrique, Hôpital d’Enfant Béchir Hamza, Tunis 1000, Tunisia
| | - Houda Yacoub-Youssef
- Laboratory of Biomedical Genomics and Oncogenetics (LR16IPT05), Institut Pasteur de Tunis, Université Tunis El Manar, Tunis 1002, Tunisia
- Correspondence:
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Idiopathic scoliosis: general characteristics and analysis of etiological theories (literature review). ACTA BIOMEDICA SCIENTIFICA 2021. [DOI: 10.29413/abs.2021-6.3.20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Idiopathic scoliosis is a severe pathology of the musculoskeletal system that affects children and adolescents all over the world. The disease occurs in approximately 0.2-0.6% of the general population, and is the largest subgroup of spinal curvature in humans (70-90% of all known scoliosis cases). In idiopathic scoliosis, a threedimensional deformation of the vertebral column is formed, leading to the formation of a rib hump, curvature of the ribs and chest, asymmetry of the pelvis and impaired development of internal organs. The main feature of the disease is the spontaneous development of deformity during the growth of the child and the tendency to progress. Scoliosis is not only an orthopedic disease, but also a ignificant cosmetic, and, consequently, a psychological and social problem. The standard of treatment for scoliotic disease remains unchanged for a long time: observation, corset treatment and surgical correction. The prognosis for the development of pathology varies depending on the degree of deformation. The corset-therapy, hospitalization, surgery and treatment of chronic back pain have a negative impact on the psychoemotional state of children and adolescents. Despite significant advances in the methods of diagnosis of deformity, improvement of surgical treatment methods and in the study of pathogenesis, the etiological factor of pathology is still unknown. The search for the causes of idiopathic scoliosis covers almost all aspects of its possible origin: genetic, environmental, hormonal, metabolic, biochemical, neurological, and others. In recent decades, relevant theories of the development of scoliosis have been formulated, but none of the theories reveals the essence of the pathological process and has no clear justification. The greatest number of supporters is the genetic theory: genetic factors play a key role in the occurrence and development of idiopathic scoliosis. Understanding the underlying factors of the disease will enable prevention, early diagnosis, and identification of the risk groups of the patients in question.
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Abstract
Etiology of adolescent idiopathic scoliosis (AIS), a complicated three-dimensional spinal deformity with early-onset, receives continuous attention but remains unclear. To gain an insight into AIS pathogenesis, this review searched PubMed database up to June 2019, using key words or medical subject headings terms including "adolescent idiopathic scoliosis," "scoliosis," "pathogenesis," "etiology," "genetics," "mesenchymal stem cells," and their combinations, summarized existing literatures and categorized the theories or hypothesis into nine aspects. These aspects include bone marrow mesenchymal stem cell studies, genetic studies, tissue analysis, spine biomechanics measurements, neurologic analysis, hormone studies, biochemical analysis, environmental factor analysis, and lifestyle explorations. These categories could be a guidance for further etiology or treatment researches to gain inspiration.
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Predicting Adolescent Idiopathic Scoliosis among Chinese Children and Adolescents. BIOMED RESEARCH INTERNATIONAL 2020; 2020:1784360. [PMID: 32766304 PMCID: PMC7387995 DOI: 10.1155/2020/1784360] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 05/30/2020] [Accepted: 06/11/2020] [Indexed: 12/01/2022]
Abstract
Objective Adolescent idiopathic scoliosis (AIS) affects 1%-4% of adolescents in the early stages of puberty, but there is still no effective prediction method. This study aimed to establish a prediction model and validated the accuracy and efficacy of this model in predicting the occurrence of AIS. Methods Data was collected from a population-based school scoliosis screening program for AIS in China. A sample of 884 children and adolescents with the radiological lateral Cobb angle ≥ 10° was classified as an AIS case, and 895 non-AIS subjects with a Cobb angle < 10° were randomly selected from the screening system. All selected subjects were screened by visual inspection of clinical signs, the Adam's forward-bending test (FBT), and the measurement of angle of trunk rotation (ATR). LR and receiver operating characteristic (ROC) curves were used to preliminarily screen the influential factors, and LR models with different adjusted weights were established to predict the occurrence of AIS. Results Multivariate LR and ROC curves indicated that angle of thoracic rotation (adjusted odds ratios (AOR) = 5.18 − 10.06), angle of thoracolumbar rotation (AOR = 4.67 − 7.22), angle of lumbar rotation (AOR = 6.97 − 8.09), scapular tilt (area under the curve (AUC) = 0.77, 95% CI: 0.75-0.80), shoulder-height difference, lumbar concave, and pelvic tilt were the risk predictors for AIS. LR models with different adjusted weights (by AOR, AUC, and AOR+AUC) performed similarly in predicting the occurrence of AIS compared with multivariate LR. The sensitivity (82.55%-83.27%), specificity (82.59%-83.33%), Youden's index (0.65-0.67), positive predictive value (82.85%-83.58%), negative predictive value (82.29%-83.03%), and total accuracy (82.57%-83.30%) manifested that LR could accurately identify patients with AIS. Conclusions LR model is a relatively high accurate and feasible method for predicting AIS. Increased performance of LR models using clinically relevant variables offers the potential to early identify high-risk groups of AIS.
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Ko DS, Kim YH, Goh TS, Lee JS. Altered physiology of mesenchymal stem cells in the pathogenesis of adolescent idiopathic scoliosis. World J Clin Cases 2020; 8:2102-2110. [PMID: 32548139 PMCID: PMC7281031 DOI: 10.12998/wjcc.v8.i11.2102] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 05/13/2020] [Accepted: 05/23/2020] [Indexed: 02/05/2023] Open
Abstract
Adolescent idiopathic scoliosis is the most common spinal deformity during puberty, especially in females. It is characterized by aberrant skeletal growth and generalized reduced bone density, which is associated with impaired bone mineral metabolism. Despite recent progress in multidisciplinary research to support various hypotheses, the pathogenesis of Adolescent idiopathic scoliosis is still not clearly understood. One of the hypothesis is to study the role of mesenchymal stem cells due to its involvement in the above-mentioned bone metabolic abnormalities. In this review, we will summarize reported literatures on the role of mesenchymal stem cells, particularly in the pathogenesis of Adolescent idiopathic scoliosis. In addition, we will describe the research on mesenchymal stem cells of Adolescent idiopathic scoliosis performed using bioinformatics tools.
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Affiliation(s)
- Dai Sik Ko
- Division of Vascular Surgery, Department of Surgery, Gachon University Gil Medical Center, Incheoz 21565, South Korea
| | - Yun Hak Kim
- Department of Anatomy and Department of Biomedical Informatics, School of Medicine, Pusan National University, Yangsan 50612, South Korea
| | - Tae Sik Goh
- Department of Orthopaedic Surgery and Biomedical Research Institute, Pusan National University Hospital, Busan 49241, South Korea
| | - Jung Sub Lee
- Department of Orthopaedic Surgery and Biomedical Research Institute, Pusan National University Hospital, Busan 49241, South Korea
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Yang L, Lu X, Yan B, Huang Y. Prevalence of Incorrect Posture among Children and Adolescents: Finding from a Large Population-Based Study in China. iScience 2020; 23:101043. [PMID: 32330860 PMCID: PMC7178490 DOI: 10.1016/j.isci.2020.101043] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 02/27/2020] [Accepted: 04/02/2020] [Indexed: 11/26/2022] Open
Abstract
Evidence showed that bad posture in adulthood is often formed from the childhood, and individuals with severe incorrect posture may be associated with the progress of scoliosis. We aimed to estimate the prevalence of incorrect posture in Chinese children and adolescents and to describe the epidemiological findings stratified by the demographic characteristics. A total of 595,057 students were screened; the overall prevalence of incorrect posture in children and adolescents was 65.3%, and around 3.7% of the students were referred to radiography. Girls had a higher prevalence of incorrect posture than boys, students aged >10 years accounted for a higher rate of incorrect posture than students aged <10 years. We found that Chinese children and adolescents had a high prevalence of incorrect posture, with girls and older students being an especially high-risk group. Early interventions targeted for students with incorrect posture are urgently needed.
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Affiliation(s)
- Lei Yang
- Department of Spine Surgery, the First Affiliated Hospital of Shenzhen University, Number 3002, Sungang West Road, Futian District, Shenzhen 518035, People's Republic of China; Department of Spine Surgery, the Shenzhen Second People's Hospital, Number 3002, Sungang West Road, Futian District, Shenzhen 518035, People's Republic of China; Shenzhen Youth Spine Health Center, Number 2008, Sungang West Road, Futian District, Shenzhen 518000, People's Republic of China
| | - Xinhai Lu
- Department of Spine Surgery, the First Affiliated Hospital of Shenzhen University, Number 3002, Sungang West Road, Futian District, Shenzhen 518035, People's Republic of China; Department of Spine Surgery, the Shenzhen Second People's Hospital, Number 3002, Sungang West Road, Futian District, Shenzhen 518035, People's Republic of China; Shenzhen Youth Spine Health Center, Number 2008, Sungang West Road, Futian District, Shenzhen 518000, People's Republic of China
| | - Bin Yan
- Department of Spine Surgery, the First Affiliated Hospital of Shenzhen University, Number 3002, Sungang West Road, Futian District, Shenzhen 518035, People's Republic of China; Department of Spine Surgery, the Shenzhen Second People's Hospital, Number 3002, Sungang West Road, Futian District, Shenzhen 518035, People's Republic of China; Shenzhen Youth Spine Health Center, Number 2008, Sungang West Road, Futian District, Shenzhen 518000, People's Republic of China.
| | - Yeen Huang
- Department of Spine Surgery, the First Affiliated Hospital of Shenzhen University, Number 3002, Sungang West Road, Futian District, Shenzhen 518035, People's Republic of China; Department of Spine Surgery, the Shenzhen Second People's Hospital, Number 3002, Sungang West Road, Futian District, Shenzhen 518035, People's Republic of China; Shenzhen Youth Spine Health Center, Number 2008, Sungang West Road, Futian District, Shenzhen 518000, People's Republic of China.
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Guan M, Wang H, Fang H. Reply to the Letter to the Editor of Y. Zhao, et al. concerning "Association between IGF1 gene single nucleotide polymorphism (rs5742612) and adolescent idiopathic scoliosis: a meta-analysis" by Ming Guan, Huan Wang et al. Eur Spine J (2016). doi:10.1007/s00586-016-4742-7. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2017; 26:1314-1315. [PMID: 28213696 DOI: 10.1007/s00586-017-5007-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 02/07/2017] [Indexed: 06/06/2023]
Affiliation(s)
- Ming Guan
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095#, Jiefang Ave., Wuhan, Hubei, China
| | - Huan Wang
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095#, Jiefang Ave., Wuhan, Hubei, China
| | - Huang Fang
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095#, Jiefang Ave., Wuhan, Hubei, China.
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Guan M, Wang H, Fang H, Zhang C, Gao S, Zou Y. Association between IGF1 gene single nucleotide polymorphism (rs5742612) and adolescent idiopathic scoliosis: a meta-analysis. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2016; 26:1624-1630. [DOI: 10.1007/s00586-016-4742-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 07/17/2016] [Accepted: 08/08/2016] [Indexed: 02/07/2023]
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Association Study between Idiopathic Scoliosis and Polymorphic Variants of VDR, IGF-1, and AMPD1 Genes. GENETICS RESEARCH INTERNATIONAL 2015; 2015:852196. [PMID: 26380113 PMCID: PMC4561981 DOI: 10.1155/2015/852196] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 08/18/2015] [Indexed: 12/19/2022]
Abstract
Idiopathic scoliosis (IS) is a complex genetic disorder of the musculoskeletal system, characterized by three-dimensional rotation of the spine with unknown etiology. For the aims of the current study we selected 3 single nucleotide polymorphisms with a low incidence of the polymorphic allele in Bulgarian population, AMPD1 (rs17602729), VDR (rs2228670), and IGF-1 (rs5742612), trying to investigate the association between these genetic polymorphisms and susceptibility to and progression of IS. The polymorphic regions of the genes were amplified by polymerase chain reaction (PCR). The PCR products were cleaved with the appropriate restriction enzymes. The statistical analysis was performed by Pearson's chi-squared test. A value of p < 0.05 was considered to be statistically significant. In conclusion, this case-control study revealed no statistically significant association between the VDR, IGF-1, and AMPD1 polymorphisms and the susceptibility to IS or curve severity in Bulgarian patients. Replication case-control studies will be needed to examine the association between these candidate-genes and IS in different populations. The identification of molecular markers for IS could be useful for early detection and prognosis of the risk for a rapid progression of the curve. That would permit early stage treatment of the patient with the least invasive procedures.
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Noshchenko A, Hoffecker L, Lindley EM, Burger EL, Cain CMJ, Patel VV, Bradford AP. Predictors of spine deformity progression in adolescent idiopathic scoliosis: A systematic review with meta-analysis. World J Orthop 2015; 6:537-558. [PMID: 26301183 PMCID: PMC4539477 DOI: 10.5312/wjo.v6.i7.537] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2015] [Revised: 05/14/2015] [Accepted: 06/11/2015] [Indexed: 02/06/2023] Open
Abstract
AIM: To evaluate published data on the predictors of progressive adolescent idiopathic scoliosis (AIS) in order to evaluate their efficacy and level of evidence.
METHODS: Selection criteria: (1) study design: randomized controlled clinical trials, prospective cohort studies and case series, retrospective comparative and none comparative studies; (2) participants: adolescents with AIS aged from 10 to 20 years; and (3) treatment: observation, bracing, and other. Search method: Ovid MEDLINE, Embase, the Cochrane Library, PubMed and patent data bases. All years through August 2014 were included. Data were collected that showed an association between the studied characteristics and the progression of AIS or the severity of the spine deformity. Odds ratio (OR), sensitivity, specificity, positive and negative predictive values were also collected. A meta-analysis was performed to evaluate the pooled OR and predictive values, if more than 1 study presented a result. The GRADE approach was applied to evaluate the level of evidence.
RESULTS: The review included 25 studies. All studies showed statistically significant or borderline association between severity or progression of AIS with the following characteristics: (1) An increase of the Cobb angle or axial rotation during brace treatment; (2) decrease of the rib-vertebral angle at the apical level of the convex side during brace treatment; (3) initial Cobb angle severity (> 25o); (4) osteopenia; (5) patient age < 13 years at diagnosis; (6) premenarche status; (7) skeletal immaturity; (8) thoracic deformity; (9) brain stem vestibular dysfunction; and (10) multiple indices combining radiographic, demographic, and physiologic characteristics. Single nucleotide polymorphisms of the following genes: (1) calmodulin 1; (2) estrogen receptor 1; (3) tryptophan hydroxylase 1; (3) insulin-like growth factor 1; (5) neurotrophin 3; (6) interleukin-17 receptor C; (7) melatonin receptor 1B, and (8) ScoliScore test. Other predictors included: (1) impairment of melatonin signaling in osteoblasts and peripheral blood mononuclear cells (PBMC); (2) G-protein signaling dysfunction in PBMC; and (3) the level of platelet calmodulin. However, predictive values of all these findings were limited, and the levels of evidence were low. The pooled result of brace treatment outcomes demonstrated that around 27% of patents with AIS experienced exacerbation of the spine deformity during or after brace treatment, and 15% required surgical correction. However, the level of evidence is also low due to the limitations of the included studies.
CONCLUSION: This review did not reveal any methods for the prediction of progression in AIS that could be recommended for clinical use as diagnostic criteria.
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Ultrastructure of Intervertebral Disc and Vertebra-Disc Junctions Zones as a Link in Etiopathogenesis of Idiopathic Scoliosis. ACTA ACUST UNITED AC 2014. [DOI: 10.1155/2014/850594] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Background Context. There is no general accepted theory on the etiology of idiopathic scoliosis (IS). An important role of the vertebrae endplate physes (VEPh) and intervertebral discs (IVD) in spinal curve progression is acknowledged, but ultrastructural mechanisms are not well understood. Purpose. To analyze the current literature on ultrastructural characteristics of VEPh and IVD in the context of IS etiology. Study Design/Setting. A literature review. Results. There is strong evidence for multifactorial etiology of IS. Early wedging of vertebra bodies is likely due to laterally directed appositional bone growth at the concave side, caused by a combination of increased cell proliferation at the vertebrae endplate and altered mechanical properties of the outer annulus fibrosus of the adjacent IVD. Genetic defects in bending proteins necessary for IVD lamellar organization underlie altered mechanical properties. Asymmetrical ligaments, muscular stretch, and spine instability may also play roles in curve formation. Conclusions. Development of a reliable, cost effective method for identifying patients at high risk for curve progression is needed and could lead to a paradigm shift in treatment options. Unnecessary anxiety, bracing, and radiation could potentially be minimized and high risk patient could receive surgery earlier, rendering better outcomes with fewer fused segments needed to mitigate curve progression.
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Transforming growth factor beta 1 is a novel susceptibility gene for adolescent idiopathic scoliosis. Spine (Phila Pa 1976) 2013; 38:E699-704. [PMID: 23446766 DOI: 10.1097/brs.0b013e31828de9e1] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN A genetic association study of the transforming growth factor beta 1 (TGFB1) gene with adolescent idiopathic scoliosis (AIS) in Russian population. OBJECTIVE To determine whether common genetic polymorphisms C-509T (rs1800469) and Arg25Pro (rs1800471) of the TGFB1 gene are associated with susceptibility to AIS. SUMMARY OF BACKGROUND DATA An importance of growth factors for the pathogenesis of AIS has been demonstrated by the findings of abnormal expression of these proteins in the spine and surrounding tissues in patients with AIS. However, no studies have been performed to investigate the relationship between genetic polymorphisms of the TGFB1 gene and susceptibility to AIS. METHODS A total of 600 unrelated adolescents from Central Russia (Moscow) were recruited in this study, including 300 patients with AIS and 300 age- and sex-matched healthy adolescents. The polymorphisms were genotyped by polymerase chain reaction-restriction fragment length polymorphism. RESULTS The allele -509T and genotype -509TT of the TGFB1 gene were significantly associated with the increased risk of idiopathic scoliosis in both females and males (P < 0.01). Logistic regression analysis has revealed a recessive model of the genetic association between polymorphism C-509T of the TGFB1 gene and AIS. Moreover, we found sexual dimorphisms in the relationships of SNP C-509T of the TGFB1 gene with both the age of disease onset and curve severity: the polymorphism was found to determine both an early onset of scoliosis and the severity of curvature in females but not in males (P < 0.05). CONCLUSION This study, for the first time, highlights the importance of TGFB1 gene for the development and progress of AIS. We hypothesize several mechanisms by which the TGFB1 gene may contribute to spinal deformity in patients with AIS.
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Gorman KF, Julien C, Moreau A. The genetic epidemiology of idiopathic scoliosis. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2012; 21:1905-19. [PMID: 22695700 PMCID: PMC3463687 DOI: 10.1007/s00586-012-2389-6] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2011] [Revised: 05/17/2012] [Accepted: 05/22/2012] [Indexed: 12/23/2022]
Abstract
Purpose Idiopathic scoliosis is a complex developmental syndrome defined by an abnormal structural curvature of the spine. High treatment costs, chronic pain/discomfort, and the need for monitoring at-risk individuals contribute to the global healthcare burden of this musculoskeletal disease. Although many studies have endeavored to identify underlying genes, little progress has been made in understanding the etiopathogenesis. The objective of this comprehensive review was to summarize genetic associations/linkages with idiopathic scoliosis, as well as explore the strengths and weaknesses of each study, such that it may serve as a guide for the design and interpretation of future genetic studies in scoliosis. Methods We searched PubMed and Human Genome Epidemiology (HuGE) Navigator using the search terms “gene and scoliosis”. Linkage or association studies published in English and available full-text were further analyzed as regards results, experimental design, and statistical approach. Results We identified and analyzed 50 studies matching our criteria. These consisted of 34 candidate gene studies (6 linkage, 28 association) and 16 genome-wide studies [14 pedigree-based linkage, 2 genome-wide association studies (GWAS)]. Findings involved genes related to connective tissue structure, bone formation/metabolism, melatonin signaling pathways, puberty and growth, and axon guidance pathways. Variability in results between studies suggested ethnic and/or genetic heterogeneity. Conclusions The major difficulty in idiopathic scoliosis research is phenotypic and genetic heterogeneity. Genetic research was overrepresented by underpowered studies. The use of biological endophenotypes, as well as restricted clinical definitions, may help to partition variation and increase the power of studies to detect or confirm an effect.
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Affiliation(s)
- Kristen Fay Gorman
- Viscogliosi Laboratory in Molecular Genetics of Musculoskeletal Diseases, Sainte Justine University Hospital Research Center, Montreal, QC, Canada
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Acaroglu E, Bobe R, Enouf J, Marcucio R, Moldovan F, Moreau A. The metabolic basis of adolescent idiopathic scoliosis: 2011 report of the "metabolic" workgroup of the Fondation Yves Cotrel. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2012; 21:1033-42. [PMID: 22402844 PMCID: PMC3366135 DOI: 10.1007/s00586-012-2245-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2011] [Revised: 02/16/2012] [Accepted: 02/23/2012] [Indexed: 11/28/2022]
Abstract
OBJECTIVE The purpose of this review is to elucidate the metabolic processes involved in the pathogenesis of adolescent idiopathic scoliosis (AIS) in light of research by the present authors as well as current literature. METHODS Pathogenetic mechanisms involved in AIS were modeled as (a) a form of neuromuscular scoliosis (in conjunction with an adverse mechanical environment such as bipedality), in which hormonal and other chemical factors act as regulators of skeletal muscle tone and function; (b) as a consequence of an abnormality in growth of the spinal column (in conjunction with an adverse mechanical environment such as bipedality), in which hormones and other chemical factors act as regulators of growth; and (c) as a mechanical failure of one side of the vertebral column due to a defect in trabecular formation or mineralization (in conjunction with an adverse mechanical environment such as bipedality); in which hormonal and other chemical factors act as regulators of bone formation, mineralization and/or resorption. RESULTS AND CONCLUSION Current evidence supporting these models individually or in combination is discussed.
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Affiliation(s)
- Emre Acaroglu
- Ankara Spine Center, Iran caddesi 45/2, Kavaklidere, Ankara, Turkey.
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Takahashi Y, Matsumoto M, Karasugi T, Watanabe K, Chiba K, Kawakami N, Tsuji T, Uno K, Suzuki T, Ito M, Sudo H, Minami S, Kotani T, Kono K, Yanagida H, Taneichi H, Takahashi A, Toyama Y, Ikegawa S. Lack of association between adolescent idiopathic scoliosis and previously reported single nucleotide polymorphisms in MATN1, MTNR1B, TPH1, and IGF1 in a Japanese population. J Orthop Res 2011; 29:1055-8. [PMID: 21308753 DOI: 10.1002/jor.21347] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2010] [Accepted: 12/09/2010] [Indexed: 02/04/2023]
Abstract
Adolescent idiopathic scoliosis (AIS) is a spinal deformity most commonly arising in apparently healthy girls around puberty. AIS has a strong genetic predisposition. Several genetic associations between AIS and single nucleotide polymorphisms (SNPs) have been reported; common SNPs in the genes for matrilin 1 (MATN1), melatonin receptor 1B (MTNR1B), tryptophan hydroxylase 1 (TPH1), and insulin-like growth factor 1 (IGF1) are reported to be associated with AIS in Chinese. However, these associations have not been replicated so far. To confirm the associations, we compared these SNPs with AIS predisposition and curve severity in a population of Japanese females consisting of 798 AIS patients and 1,239 controls. All the subjects were genotyped using the PCR-based Invader assay. We found no association of any of the SNPs with AIS predisposition or curve severity. Considering the statistical power and sample size of the present study, we concluded that these SNPs are not associated with either AIS predisposition or curve severity in Japanese.
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Affiliation(s)
- Yohei Takahashi
- Laboratory of Bone and Joint Diseases, Center for Genomic Medicine, RIKEN, 4-6-1 Sirokanedai, Minato-ku, Tokyo 108-8639, Japan; Department of Orthopaedic Surgery, School of Medicine, Keio University, Tokyo, Japan
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