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Monisha M, Keshri N, Nandeesha H, Menon V. Relationship of Neurotropin-3 Gene Polymorphism with Cognitive Impairment in Bipolar Disorder. Indian J Psychol Med 2025:02537176251314157. [PMID: 39906688 PMCID: PMC11789048 DOI: 10.1177/02537176251314157] [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: 02/06/2025] Open
Abstract
Background Neurotropin-3 (NT-3), a marker of neural plasticity, is reported to be altered in bipolar disorder (BD). This study was designed to evaluate NT-3 gene polymorphism (rs 6489630, rs 6332, and rs 11063714) in BD and its association with disease severity and cognition. Methods The study included 176 BD cases and 176 controls. All the participants were tested for NT-3 polymorphism and plasma NT-3. ACE-III scores were used to analyze cognition. Results The NT-3 polymorphism (rs 6489630) was associated with cognitive impairment in BD (P = .010). The attention score was found to be decreased in the CT genotype (P = .028) when compared to the CC and TT genotypes of the rs6489630 variant. The visuospatial ability score was decreased in the GG genotype (P = .044) compared to the AG genotype of the rs11063714 variant. BD patients with the maniac episode showed a decrease in levels of Neurotrophin-3 in comparison to both the control group (P = .045) and the remission group (P = .017). Plasma NT-3 was associated with the YMRS (r = -0.221, P = .003), HDRS (r = 0.209, P = .005) and visuospatial ability score (r = 0.180, P = .017) in patients with BD. Conclusion Single nucleotide polymorphisms of NT-3 are associated with cognitive dysfunction in BD.
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Affiliation(s)
- Muralidharan Monisha
- Dept. of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, Tamil Nadu, India
| | - Neha Keshri
- Dept. of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, Tamil Nadu, India
| | - Hanumanthappa Nandeesha
- Dept. of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, Tamil Nadu, India
| | - Vikas Menon
- Dept. of Psychiatry, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, Tamil Nadu, India
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Petrosyan E, Fares J, Ahuja CS, Lesniak MS, Koski TR, Dahdaleh NS, El Tecle NE. Genetics and pathogenesis of scoliosis. NORTH AMERICAN SPINE SOCIETY JOURNAL 2024; 20:100556. [PMID: 39399722 PMCID: PMC11470263 DOI: 10.1016/j.xnsj.2024.100556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2024] [Revised: 09/02/2024] [Accepted: 09/03/2024] [Indexed: 10/15/2024]
Abstract
Background Scoliosis is defined as a lateral spine curvature of at least 10° with vertebral rotation, as seen on a posterior-anterior radiograph, often accompanied by reduced thoracic kyphosis. Scoliosis affects all age groups: idiopathic scoliosis is the most common spinal disorder in children and adolescents, while adult degenerative scoliosis typically affects individuals over fifty. In the United States, approximately 3 million new cases of scoliosis are diagnosed annually, with a predicted increase in part due to global aging. Despite its prevalence, the etiopathogenesis of scoliosis remains unclear. Methods This comprehensive review analyzes the literature on the etiopathogenetic evidence for both idiopathic and adult degenerative scoliosis. PubMed and Google Scholar databases were searched for studies on the genetic factors and etiopathogenetic mechanisms of scoliosis development and progression, with the search limited to articles in English. Results For idiopathic scoliosis, genetic factors are categorized into three groups: genes associated with susceptibility, disease progression, and both. We identify gene groups related to different biological processes and explore multifaceted pathogenesis of idiopathic scoliosis, including evolutionary adaptations to bipedalism and developmental and homeostatic spinal aberrations. For adult degenerative scoliosis, we segregate genetic and pathogenic evidence into categories of angiogenesis and inflammation, extracellular matrix degradation, neural associations, and hormonal influences. Finally, we compare findings in idiopathic scoliosis and adult degenerative scoliosis, discuss current limitations in scoliosis research, propose a new model for scoliosis etiopathogenesis, and highlight promising areas for future studies. Conclusions Scoliosis is a complex, multifaceted disease with largely enigmatic origins and mechanisms of progression, keeping it under continuous scientific scrutiny.
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Affiliation(s)
- Edgar Petrosyan
- Department of Neurological Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, United States
| | - Jawad Fares
- Department of Neurological Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, United States
| | - Christopher S. Ahuja
- Department of Neurological Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, United States
| | - Maciej S. Lesniak
- Department of Neurological Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, United States
| | - Tyler R. Koski
- Department of Neurological Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, United States
| | - Nader S. Dahdaleh
- Department of Neurological Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, United States
| | - Najib E. El Tecle
- Department of Neurological Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, United States
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3
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Lau KKL, Law KKP, Kwan KYH, Cheung JPY, Cheung KMC. Proprioception-related gene mutations in relation to the aetiopathogenesis of idiopathic scoliosis: A scoping review. J Orthop Res 2023; 41:2694-2702. [PMID: 37203456 DOI: 10.1002/jor.25626] [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: 03/30/2023] [Revised: 05/14/2023] [Accepted: 05/16/2023] [Indexed: 05/20/2023]
Abstract
Since idiopathic scoliosis is a multifactorial disorder, the proprioceptive defect is considered one of its etiological factors. Genetic studies have separately revealed this relationship, yet it remains indeterminate which specific genes that related to proprioception contributed to the initiation, progression, pathology, and treatment outcomes of the curvature. A systematic search was conducted on four online databases, including PubMed, Web of Science, Embase, and Academic search complete. Studies were included if they involved human or animal subjects with idiopathic scoliosis and evaluated with proprioceptive genes. The search period was the inception of the database to February 21, 2023. Four genes (i.e., Ladybird homeobox 1 [LBX1], Piezo type mechanosensitive ion channel component 2 [PIEZO2], Runx family transcription factor 3 [RUNX3], and neurotrophin 3 [NTF3]) investigated in 19 studies were included. LBX1 has confirmed the correlation with the development of idiopathic scoliosis in 10 ethnicities, whereas PIEZO2 has shown a connection with clinical proprioceptive tests in subjects with idiopathic scoliosis. However, curve severity was less likely to be related to the proprioceptive genes. The potential pathology took place at the proprioceptive neurons. Evidence of proprioception-related gene mutations in association with idiopathic scoliosis was established. Nevertheless, the causation between the initiation, progression, and treatment outcomes with proprioceptive defect requires further investigation.
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Affiliation(s)
- Kenney K L Lau
- Department of Orthopaedics and Traumatology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong
| | - Karlen K P Law
- Department of Orthopaedics and Traumatology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong
| | - Kenny Y H Kwan
- Department of Orthopaedics and Traumatology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong
| | - Jason P Y Cheung
- Department of Orthopaedics and Traumatology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong
- Department of Orthopaedics and Traumatology, The University of Hong Kong Shenzhen Hospital, Shenzhen, China
| | - Kenneth M C Cheung
- Department of Orthopaedics and Traumatology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong
- Department of Orthopaedics and Traumatology, The University of Hong Kong Shenzhen Hospital, Shenzhen, China
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4
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Keshri N, Nandeesha H, Rajappa M, Menon V. Neurotrophin-3 gene polymorphism in schizophrenia and its relation with diseases severity and cognitive dysfunction. J Neurosci Rural Pract 2023; 14:501-508. [PMID: 37692806 PMCID: PMC10483217 DOI: 10.25259/jnrp_34_2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 06/25/2023] [Indexed: 09/12/2023] Open
Abstract
Objectives Synaptic plasticity markers are known to alter in schizophrenia. The objective of the study was to investigate the genotype and allele frequency of neurotrophin-3 (NT-3) gene polymorphism (rs6489630, rs6332, and rs11063714) and plasma NT-3 levels in schizophrenia and their relation with cognitive status. Materials and Methods The study was conducted on 216 Schizophrenia patients and 216 controls. Single-nucleotide polymorphism (SNP) of NT-3 and its plasma levels were assessed in both groups. Cognitive status was evaluated using Addenbrooke Cognitive examination-III scores. Results The rs6489630 polymorphism was found to be significantly associated with the severity of schizophrenia (P = 0.004). The CT genotype (P = 0.02, OR = 1.631 [1.10-2.43]) and minor allele T (P = 0.004, OR = 1.58 [1.16-2.16]) of rs6489630 conferred an increased susceptibility to develop schizophrenia. The rs6332 variant was found to affect cognitive status significantly in schizophrenia (P = 0.040), and memory dysfunction was seen in individuals with AG (P < 0.01) and AA variant (P = 0.03) of rs6332. Conclusion We conclude that SNPs of NT-3 enhance the risk of schizophrenia and are related to cognitive dysfunction.
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Affiliation(s)
- Neha Keshri
- Department of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Hanumanthappa Nandeesha
- Department of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Medha Rajappa
- Department of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Vikas Menon
- Department of Psychiatry, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
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AlMekkawi AK, Caruso JP, El Ahmadieh TY, Palmisciano P, Aljardali MW, Derian AG, Al Tamimi M, Bagley CA, Aoun SG. Single Nucleotide Polymorphisms and Adolescent Idiopathic Scoliosis: A Systematic Review and Meta-Analysis of the Literature. Spine (Phila Pa 1976) 2023; 48:695-701. [PMID: 36940245 DOI: 10.1097/brs.0000000000004623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 02/25/2023] [Indexed: 03/22/2023]
Abstract
STUDY DESIGN Meta-analysis. OBJECTIVE To determine the single nucleotide polymorphisms (SNPs) that are related to adult idiopathic scoliosis. SUMMARY AND BACKGROUND DATA Adolescent idiopathic scoliosis (AIS) is considered one of the most prevalent spinal diseases. Even though the cause of AIS is yet to be determined, family history and sex have shown conclusive associations. Multiple studies have indicated that AIS is more prevalent in families where at least one other first-degree relative is similarly affected, indicating a possible genetic etiology to AIS. MATERIALS AND METHODS Articles were collected from 3 different search engines and then processed in 2 stages for final article selection for quantitative analysis. Five different genetic models were represented to show the association between the different SNPs and AIS. The Hardy-Weinberg equilibrium was examined using Fisher exact test, with significance set at P <0.05. The final analysis paper's quality was evaluated using the Newcastle Ottawa Scale. Kappa interrater agreement was calculated to evaluate the agreement between authors. RESULTS The final analysis comprised 43 publications, 19412 cases, 22005 controls, and 25 distinct genes. LBX1 rs11190870 T>C and MATN-1 SNPs were associated with an increased risk of AIS in one or all of the 5 genetic models. IGF-1 , estrogen receptor alfa, and MTNR1B , SNPs were not associated with AIS in all 5 genetic models. Newcastle Ottawa Scale showed good quality for the selected articles. Cohen k = 0.741 and Kappa interrater agreement of 84% showed that the writers were in strong agreement. CONCLUSIONS There seem to be associations between AIS and genetic SNP. Further larger studies should be conducted to validate the results.
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Affiliation(s)
- Ahmad K AlMekkawi
- Department of Neurosurgery, The University of Texas Southwestern, Dallas, TX
| | - James P Caruso
- Department of Neurosurgery, The University of Texas Southwestern, Dallas, TX
| | - Tarek Y El Ahmadieh
- Department of Neurosurgery, Loma Linda University, Anderson St., Loma Linda, CA
| | - Paolo Palmisciano
- Department of Neurosurgery, University of Cincinnati, Cincinnati, OH
| | - Marwa W Aljardali
- The LAU Gilbert and Rose-Marie Chagoury School of Medicine; Beirut, Lebanon
| | | | - Mazin Al Tamimi
- Department of Neurosurgery, The University of Texas Southwestern, Dallas, TX
| | - Carlos A Bagley
- Department of Neurosurgery, The University of Texas Southwestern, Dallas, TX
| | - Salah G Aoun
- Department of Neurosurgery, The University of Texas Southwestern, Dallas, TX
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Faldini C, Manzetti M, Neri S, Barile F, Viroli G, Geraci G, Ursini F, Ruffilli A. Epigenetic and Genetic Factors Related to Curve Progression in Adolescent Idiopathic Scoliosis: A Systematic Scoping Review of the Current Literature. Int J Mol Sci 2022; 23:5914. [PMID: 35682604 PMCID: PMC9180299 DOI: 10.3390/ijms23115914] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 05/18/2022] [Accepted: 05/23/2022] [Indexed: 02/06/2023] Open
Abstract
Adolescent idiopathic scoliosis (AIS) is a progressive deformity of the spine. Scoliotic curves progress until skeletal maturity leading, in rare cases, to a severe deformity. While the Cobb angle is a straightforward tool in initial curve magnitude measurement, assessing the risk of curve progression at the time of diagnosis may be more challenging. Epigenetic and genetic markers are potential prognostic tools to predict curve progression. The aim of this study is to review the available literature regarding the epigenetic and genetic factors associated with the risk of AIS curve progression. This review was carried out in accordance with Preferential Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines. The search was carried out in January 2022. Only peer-reviewed articles were considered for inclusion. Forty studies were included; fifteen genes were reported as having SNPs with significant association with progressive AIS, but none showed sufficient power to sustain clinical applications. In contrast, nine studies reporting epigenetic modifications showed promising results in terms of reliable markers. Prognostic testing for AIS has the potential to significantly modify disease management. Most recent evidence suggests epigenetics as a more promising field for the identification of factors associated with AIS progression, offering a rationale for further investigation in this field.
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Affiliation(s)
- Cesare Faldini
- Department of Biomedical and Neuromotor Science-DIBINEM, 1st Orthopaedic and Traumatologic Clinic, IRCCS Istituto Ortopedico Rizzoli, University of Bologna, Via Giulio Cesare Pupilli 1, 40136 Bologna, Italy; (C.F.); (M.M.); (F.B.); (G.V.); (G.G.); (A.R.)
| | - Marco Manzetti
- Department of Biomedical and Neuromotor Science-DIBINEM, 1st Orthopaedic and Traumatologic Clinic, IRCCS Istituto Ortopedico Rizzoli, University of Bologna, Via Giulio Cesare Pupilli 1, 40136 Bologna, Italy; (C.F.); (M.M.); (F.B.); (G.V.); (G.G.); (A.R.)
| | - Simona Neri
- Medicine and Rheumatology Unit, IRCCS Istituto Ortopedico Rizzoli, Via Giulio Cesare Pupilli 1, 40136 Bologna, Italy;
| | - Francesca Barile
- Department of Biomedical and Neuromotor Science-DIBINEM, 1st Orthopaedic and Traumatologic Clinic, IRCCS Istituto Ortopedico Rizzoli, University of Bologna, Via Giulio Cesare Pupilli 1, 40136 Bologna, Italy; (C.F.); (M.M.); (F.B.); (G.V.); (G.G.); (A.R.)
| | - Giovanni Viroli
- Department of Biomedical and Neuromotor Science-DIBINEM, 1st Orthopaedic and Traumatologic Clinic, IRCCS Istituto Ortopedico Rizzoli, University of Bologna, Via Giulio Cesare Pupilli 1, 40136 Bologna, Italy; (C.F.); (M.M.); (F.B.); (G.V.); (G.G.); (A.R.)
| | - Giuseppe Geraci
- Department of Biomedical and Neuromotor Science-DIBINEM, 1st Orthopaedic and Traumatologic Clinic, IRCCS Istituto Ortopedico Rizzoli, University of Bologna, Via Giulio Cesare Pupilli 1, 40136 Bologna, Italy; (C.F.); (M.M.); (F.B.); (G.V.); (G.G.); (A.R.)
| | - Francesco Ursini
- Medicine and Rheumatology Unit, IRCCS Istituto Ortopedico Rizzoli, Via Giulio Cesare Pupilli 1, 40136 Bologna, Italy;
- Department of Biomedical and Neuromotor Science—DIBINEM, University of Bologna, Via Giulio Cesare Pupilli 1, 40136 Bologna, Italy
| | - Alberto Ruffilli
- Department of Biomedical and Neuromotor Science-DIBINEM, 1st Orthopaedic and Traumatologic Clinic, IRCCS Istituto Ortopedico Rizzoli, University of Bologna, Via Giulio Cesare Pupilli 1, 40136 Bologna, Italy; (C.F.); (M.M.); (F.B.); (G.V.); (G.G.); (A.R.)
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7
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Wang W, Chen T, Liu Y, Wang S, Yang N, Luo M. Predictive value of single-nucleotide polymorphisms in curve progression of adolescent 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 2022; 31:2311-2325. [PMID: 35434775 DOI: 10.1007/s00586-022-07213-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 03/24/2022] [Accepted: 04/06/2022] [Indexed: 12/18/2022]
Abstract
PURPOSE Genetic diagnosis is a promising approach because several single-nucleotide polymorphisms (SNPs) associated with adolescent idiopathic scoliosis (AIS) progression have been reported. We review the predictive value of SNPs in curve progression of adolescent idiopathic scoliosis. METHODS We reviewed DNA-based prognostic testing to predict curve progression. Then, the multiple polymorphisms in loci related to AIS progression were also reviewed, and we elucidated the predictive value of SNPs from four functional perspectives, including endocrine metabolism, neuromuscular system, cartilage and extracellular matrix, enzymes, and cytokines. RESULTS The ScoliScores were less successful predictors than expected, and the weak power of predictive SNPs might account for its failure. Susceptibility loci in ESR1, ESR2, GPER, and IGF1, which related to endocrine metabolism, have been reported to predict AIS progression. Neuromuscular imbalance might be a potential mechanism of scoliosis, and SNPs in LBX1, NTF3, and SOCS3 have been reported to predict the curve progression of AIS. Susceptibility loci in SOX9, MATN1, AJAP1, MMP9, and TIMP2, which are related to cartilage and extracellular matrix, are also potentially related to AIS progression. Enzymes and cytokines play essential roles in regulating bone metabolism and embryonic development. SNPs in BNC2, SLC39A8, TGFB1, IL-6, IL-17RC, and CHD7 were suggested as predictive loci for AIS curve progression. CONCLUSIONS Many promising SNPs have been identified to predict the curve progression of AIS. However, conflicting results from replication studies and different ethnic groups hamper their reliability. Convincing SNPs from multiethnic populations and functional verification are needed.
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Affiliation(s)
- Wengang Wang
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, Henan, People's Republic of China
| | - Tailong Chen
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, Henan, People's Republic of China
| | - Yibin Liu
- Department of Emergency, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, Henan, People's Republic of China
| | - Songsong Wang
- Department of Emergency, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, Henan, People's Republic of China
| | - Ningning Yang
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, Henan, People's Republic of China. .,Department of Emergency, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, Henan, People's Republic of China.
| | - Ming Luo
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, 430071, Hubei, People's Republic of China.
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Brzoska E, Kalkowski L, Kowalski K, Michalski P, Kowalczyk P, Mierzejewski B, Walczak P, Ciemerych MA, Janowski M. Muscular Contribution to Adolescent Idiopathic Scoliosis from the Perspective of Stem Cell-Based Regenerative Medicine. Stem Cells Dev 2020; 28:1059-1077. [PMID: 31170887 DOI: 10.1089/scd.2019.0073] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Adolescent idiopathic scoliosis (AIS) is a relatively frequent disease within a range 0.5%-5.0% of population, with higher frequency in females. While a resultant spinal deformity is usually medically benign condition, it produces far going psychosocial consequences, which warrant attention. The etiology of AIS is unknown and current therapeutic approaches are symptomatic only, and frequently inconvenient or invasive. Muscular contribution to AIS is widely recognized, although it did not translate to clinical routine as yet. Muscle asymmetry has been documented by pathological examinations as well as systemic muscle disorders frequently leading to scoliosis. It has been also reported numerous genetic, metabolic and radiological alterations in patients with AIS, which are linked to muscular and neuromuscular aspects. Therefore, muscles might be considered an attractive and still insufficiently exploited therapeutic target for AIS. Stem cell-based regenerative medicine is rapidly gaining momentum based on the tremendous progress in understanding of developmental biology. It comes also with a toolbox of various stem cells such as satellite cells or mesenchymal stem cells, which could be transplanted; also, the knowledge acquired in research on regenerative medicine can be applied to manipulation of endogenous stem cells to obtain desired therapeutic goals. Importantly, paravertebral muscles are located relatively superficially; therefore, they can be an easy target for minimally invasive approaches to treatment of AIS. It comes in pair with a fast progress in image guidance, which allows for precise delivery of therapeutic agents, including stem cells to various organs such as brain, muscles, and others. Summing up, it seems that there is a link between AIS, muscles, and stem cells, which might be worth of further investigations with a long-term goal of setting foundations for eventual bench-to-bedside translation.
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Affiliation(s)
- Edyta Brzoska
- 1Department of Cytology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Lukasz Kalkowski
- 2Department of Neurology and Neurosurgery, Faculty of Medical Sciences, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Kamil Kowalski
- 1Department of Cytology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Pawel Michalski
- 3Spine Surgery Department, Institute of Mother and Child, Warsaw, Poland
| | - Pawel Kowalczyk
- 4Department of Neurosurgery, Children's Memorial Health Institute, Warsaw, Poland
| | - Bartosz Mierzejewski
- 1Department of Cytology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Piotr Walczak
- 5Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, Maryland.,6Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Maria A Ciemerych
- 1Department of Cytology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Miroslaw Janowski
- 5Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, Maryland.,6Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, Maryland
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Sonoda H, Iizuka H, Ishiwata S, Tsunoda D, Abe M, Takagishi K, Chikuda H, Koibuchi N, Shimokawa N. The retinol‐retinoic acid metabolic pathway is impaired in the lumbar spine of a rat model of congenital kyphoscoliosis. J Cell Biochem 2019; 120:15007-15017. [DOI: 10.1002/jcb.28762] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 12/16/2018] [Accepted: 01/10/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Hiroyuki Sonoda
- Department of Orthopedic Surgery Gunma University Graduate School of Medicine Maebashi Gunma Japan
- Department of Integrative Physiology Gunma University Graduate School of Medicine Maebashi Gunma Japan
| | - Haku Iizuka
- Department of Orthopedic Surgery Gunma University Graduate School of Medicine Maebashi Gunma Japan
| | - Sho Ishiwata
- Department of Orthopedic Surgery Gunma University Graduate School of Medicine Maebashi Gunma Japan
| | - Daisuke Tsunoda
- Department of Orthopedic Surgery Gunma University Graduate School of Medicine Maebashi Gunma Japan
| | - Masako Abe
- Department of Nutrition Takasaki University of Health and Welfare Takasaki Gunma Japan
| | - Kenji Takagishi
- Department of Orthopedic Surgery Gunma University Graduate School of Medicine Maebashi Gunma Japan
| | - Hirotaka Chikuda
- Department of Orthopedic Surgery Gunma University Graduate School of Medicine Maebashi Gunma Japan
| | - Noriyuki Koibuchi
- Department of Integrative Physiology Gunma University Graduate School of Medicine Maebashi Gunma Japan
| | - Noriaki Shimokawa
- Department of Integrative Physiology Gunma University Graduate School of Medicine Maebashi Gunma Japan
- Department of Nutrition Takasaki University of Health and Welfare Takasaki Gunma Japan
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Replication Study for the Association of GWAS-associated Loci With Adolescent Idiopathic Scoliosis Susceptibility and Curve Progression in a Chinese Population. Spine (Phila Pa 1976) 2019; 44:464-471. [PMID: 30234802 DOI: 10.1097/brs.0000000000002866] [Citation(s) in RCA: 17] [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 (replication) study. OBJECTIVE The aim of this study was to replicate and further evaluate the association among seven genome-wide association studies (GWAS)-identified single nucleotide polymorphisms (SNPs) in Chinese girls with adolescent idiopathic scoliosis (AIS) with disease onset, curve types, and progression. SUMMARY OF BACKGROUND DATA AIS is the most common pediatric spinal deformity with a strong genetic predisposition. Recent GWAS identified 10 new disease predisposition loci for AIS. METHODS Three hundred nineteen female AIS patients with Cobb angle ≥ 10 and 201 healthy controls were studied for the association with disease onset. Seven GWAS-identified SNPs (rs11190870 in LBX1, rs12946942 in SOX9/KCNJ2, rs13398147 in PAX3/EPH4, rs241215 in AJAP1, rs3904778 in BNC2, rs6570507 in GPR126, and rs678741 in LBX1-AS1) were analyzed. In subgroup analysis, AIS patients were subdivided by curve types and disease progression to examine for genotype association. RESULTS We replicated the association with disease onset in four common SNPs rs11190870, rs3904778, rs6570507, and rs678741. In addition, rs1190870 and rs678741 remained significantly associated in the right thoracic curves only subgroup. However, no significant difference was observed with both clinical curve progression or Cobb angle. CONCLUSION This study replicated the associations of four GWAS-associated SNPs with occurrence of AIS in our Chinese population. However, none of these SNPs was associated with curve severity and progression. The results suggest that curve progression may be determined by environmental (nongenetic) factor, but further study with a larger sample size is required to address this issue. LEVEL OF EVIDENCE 4.
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11
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A multiethnic meta-analysis defined the association of rs12946942 with severe adolescent idiopathic scoliosis. J Hum Genet 2019; 64:493-498. [DOI: 10.1038/s10038-019-0575-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 01/24/2019] [Accepted: 01/25/2019] [Indexed: 02/08/2023]
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Jiang H, Yang F, Lin T, Shao W, Meng Y, Ma J, Wang C, Gao R, Zhou X. Asymmetric expression of H19 and ADIPOQ in concave/convex paravertebral muscles is associated with severe adolescent idiopathic scoliosis. Mol Med 2018; 24:48. [PMID: 30241458 PMCID: PMC6145194 DOI: 10.1186/s10020-018-0049-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Accepted: 09/10/2018] [Indexed: 12/19/2022] Open
Abstract
Background Adolescent idiopathic scoliosis (AIS) is the most common paediatric spinal deformity. The etiology and pathology of AIS remain unexplained, and have been reported to involve a combination of genetic and epigenetic factors. Since paravertebral muscle imbalance plays an important role in the onset and progression of scoliosis, we aimed to investigate transcriptomic differences by RNA-seq and identify significantly differentially expressed transcripts in two sides of paravertebral muscle in AIS. Methods RNA-seq was performed on 5 pairs of paravertebral muscle from 5 AIS patients. Significantly differentially expressed transcripts were validated by quantitative reverse polymerase chain reaction. Gene expression difference was correlated to clinical characteristics. Results We demonstrated that ADIPOQ mRNA and H19 is significantly differentially expressed between two sides of paravertebral muscle, relatively specific in the context of AIS. Relatively low H19 and high ADIPOQ mRNA expression levels in concave-sided muscle are associated with larger spinal curve and earlier age at initiation. We identified miR-675-5p encoded by H19 as a mechanistic regulator of ADIPOQ expression in AIS. We demonstrated that significantly reduced CCCTC-binding factor (CCTF) occupancy in the imprinting control region (ICR) of the H19 gene in the concave-sided muscle contributes to down-regulated H19 expression. Conclusions RNA-seq revealed transcriptomic differences between two sides of paravertebral muscle in AIS patients. Our findings imply that transcriptomic differences caused by epigenetic factors in affected individuals may account for the structural and functional imbalance of paravertebral muscle, which can expand our etiologic understanding of this disease. Electronic supplementary material The online version of this article (10.1186/s10020-018-0049-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Heng Jiang
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, No.415 Fengyang Road, Shanghai, People's Republic of China
| | - Fu Yang
- Department of Medical Genetics, Second Military Medical University, Shanghai, People's Republic of China.,Shanghai Key Laboratory of Cell Engineering (14DZ2272300), Shanghai, People's Republic of China
| | - Tao Lin
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, No.415 Fengyang Road, Shanghai, People's Republic of China
| | - Wei Shao
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, No.415 Fengyang Road, Shanghai, People's Republic of China
| | - Yichen Meng
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, No.415 Fengyang Road, Shanghai, People's Republic of China
| | - Jun Ma
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, No.415 Fengyang Road, Shanghai, People's Republic of China
| | - Ce Wang
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, No.415 Fengyang Road, Shanghai, People's Republic of China
| | - Rui Gao
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, No.415 Fengyang Road, Shanghai, People's Republic of China.
| | - Xuhui Zhou
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, No.415 Fengyang Road, Shanghai, People's Republic of China.
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Common Variant of POC5 Is Associated With the Susceptibility of Adolescent Idiopathic Scoliosis. Spine (Phila Pa 1976) 2018; 43:E683-E688. [PMID: 29189569 DOI: 10.1097/brs.0000000000002490] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN A case-control study. OBJECTIVE To validate the relationship between POC5 and adolescent idiopathic scoliosis (AIS) in the Chinese patients and to further investigate the functional role of POC5. SUMMARY OF BACKGROUND DATA Three rare functional variants in the POC5 were recently reported to be strongly associated with the disease in a large family with multiple members affected with idiopathic scoliosis. To our knowledge, the association between the mutations of POC5 and AIS remains undetermined in the Chinese population. METHODS Single nucleotide variants c.1336G>A, c.1286C>T, and c.1363G>C of POC5 were genotyped in 2432 patients with AIS and 2292 healthy controls using multiple ligase detection reactions. Common variants covering POC5 gene were genotyped in 1446 patients and 2080 controls. The mRNA expression of POC5 was determined in the paraspinal muscles collected from 98 patients and 28 controls. The Student t test was used to compare mRNA expression level between the patients and the controls. In addition, the POC5 expression was compared among different genotypes of the remarkably associated single nucleotide polymorphism (SNP) with analysis of variance test. RESULTS There was no case of mutation for the three reported variants of POC5. SNP rs6892146 was observed to have significantly different distribution of minor allele frequency in the two group (0.485 vs. 0.446, P = 0.004). The mRNA expression of POC5 was 1.5-fold higher in patients than in the controls (0.00012 ± 0.00009 vs. 0.00008 ± 0.00006, P = 0.02). Patients with genotype GG have a significantly increased expression of POC5 than those with CC (0.00014 ± 0.00007 vs. 0.00009 ± 0.00007, P = 0.03). CONCLUSION Common variant rs6892146 of POC5 is associated with the development of AIS in the Chinese population. Targeted regional sequencing of POC5 may help identify novel mutations associated with AIS. LEVEL OF EVIDENCE 4.
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A Replication Study for the Association of rs11190870 With Curve Severity in Adolescent Idiopathic Scoliosis in Japanese. Spine (Phila Pa 1976) 2018; 43:688-692. [PMID: 28902104 DOI: 10.1097/brs.0000000000002413] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN Case-only study. OBJECTIVE The aim of this study was to confirm the association of rs11190870 with adolescent idiopathic scoliosis (AIS) severity in Japanese patients with AIS. SUMMARY OF BACKGROUND DATA Although the association of rs11190870 with AIS susceptibility is replicated in multiple ethnics, the association of rs11190870 with curve severity is controversial. Since the previous studies are of small, we performed a replication study using far larger number of patients than previous studies. METHODS A total of 1860 Japanese patients with AIS who had reached skeletal maturity or undergone surgical fusion were included in the study. We evaluated the association between rs11190870 and AIS progression for the entire group, and then for patients grouped according to a severe curve (a Cobb angle of ≥40°) or mild curve (a Cobb angle <30°). Because braces could affect the results of the present study, patients in the mild-curve group were divided according to whether or not they had worn a brace. We then evaluated associations between rs11190870 genotype and curve severity in these groups. RESULTS The mean Cobb angles were 54.8° ± 12.1° in the severe-curve group and 24.4° ± 4.0° in the mild-curve group. The difference in rs11190870 risk-allele frequency between the severe- and mild-curve groups was evaluated. No significant differences were observed. We then examined the association of rs11190870 risk-allele frequency between patients in the mild- and severe-curve groups using the χ test for three models, and found a marginal association between rs11190870 and curve severity in the dominant model (P = 0.035, odds ratio = 1.51). CONCLUSION We found no association between rs11190870 and curve severity using the criteria of previous study. However, we found a marginal association between rs11190870 and curve severity. Large-scale replication studies that consider skeletal maturity and brace history, including replication studies in other ethnic groups, would be helpful for clarifying the association. LEVEL OF EVIDENCE 4.
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VANGL1 Is Not Associated With the Susceptibility of Adolescent Idiopathic Scoliosis in the Chinese Population. Spine (Phila Pa 1976) 2018; 43:E580-E584. [PMID: 29189642 DOI: 10.1097/brs.0000000000002497] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN A case-control study. OBJECTIVE To replicate the association between the VANGL1 gene and the susceptibility of AIS in the Chinese population. SUMMARY OF BACKGROUND DATA The mutations of VANGL1 gene were recently reported to be associated with AIS in the Danish population. However, there is a lack of replication in other populations. Further analysis of the functional role of VANGL1 in AIS was warranted. METHODS A total of 1481 female AIS patients and 1372 age-matched healthy controls were included in this study. single nucleotide variant (SNV)s c.407T > A and c.1318T > G were genotyped using allelic-specific multiple ligase detection reactions. single nucleotide polymorphism (SNP)s covering VANGL1 gene were selected using Haploview (v2.6). The associations between theses SNPs and AIS were investigated through Cochran-Armitage trend test by PLINK (v1.90). Relative mRNA expression of VANGL1 in the paraspinal muscles was analyzed for 30 patients and 24 age-matched controls. The difference of mRNA expression level between the two groups was analyzed with the Student t test. RESULTS There was no case of mutation for all the subjects. A total of 22 SNPs covering VANGL1 were analyzed. All the SNPs were found to have comparable distribution of genotype and allele frequency in the cases and the controls. Moreover, there was no significant difference regarding the mRNA expression of VANGL1 in the two groups. CONCLUSION VANGL1 gene is not associated with AIS in the Chinese population. Replication studies in other ethnic groups are warranted to further clarify the role of the VANGL1 gene in AIS. LEVEL OF EVIDENCE 4.
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Genetic Polymorphism of NUCKS1 Is Associated With the Susceptibility of Adolescent Idiopathic Scoliosis. Spine (Phila Pa 1976) 2017; 42:1629-1634. [PMID: 28338576 DOI: 10.1097/brs.0000000000002167] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [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. OBJECTIVE The aim of this study was to investigate whether NUCKS1 is a susceptible gene of adolescent idiopathic scoliosis (AIS) in Chinese population and to further narrate its association with the clinical phenotypes. SUMMARY OF BACKGROUND DATA AIS is characterized by late onset of menarche and disturbed growth rhythm. Previous studies showed that NUCKS1 is associated with age at menarche and pubertal height growth. METHODS Single-nucleotide polymorphism rs951366 of NUCKS1 was genotyped in 972 patients and 1454 healthy controls. The differences of genotype and allele distributions between AIS patients and healthy controls were evaluated using the χ test. One-way analysis of variance test was used to compare the relationship between different genotypes and clinical features including tissue expression of NUCKS1, age at menarche, and curve magnitude. RESULTS Patients were found to have a significantly lower frequency of CC than the controls (5.9% vs. 10.6%, P < 0.001). Besides, the frequency of allele C was found to be remarkably lower in the patients than the controls (26.4% vs. 30.9%, P < 0.001), with an odds ratio of 0.80 (95% confidential interval = 0.71-0.91). Patients with genotype CC had a remarkably lower age at menarche than patients with genotype TT (12.1 ± 1.7 vs. 12.8 ± 2.4 years, P = 0.02). Patients with genotype TT had a remarkably lower expression level of NUCKS1 than patients with genotype CC (2.8 ± 1.9 vs. 4.3 ± 2.2, P = 0.03). As for curve magnitude, no significant difference was found among patients with different genotypes. CONCLUSION Patients with allele T of rs951366 can be more vulnerable to the incidence of AIS as well as a late onset of menarche. Further functional analysis is warranted for a comprehensive knowledge on the contribution of this variant to the development of AIS. LEVEL OF EVIDENCE 4.
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Xu L, Xia C, Zhu W, Feng Z, Qin X, Sun W, Qiu Y, Zhu Z. Lack of association between AKAP2 and the susceptibility of adolescent idiopathic scoliosis in the Chinese population. BMC Musculoskelet Disord 2017; 18:368. [PMID: 28838314 PMCID: PMC5571670 DOI: 10.1186/s12891-017-1731-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 08/16/2017] [Indexed: 01/09/2023] Open
Abstract
Background Adolescent idiopathic scoliosis (AIS) is a well characterized spinal deformity that affects millions of children world-wide. The role of genetic factor in the development of AIS has been of great interest, since obvious hereditary trend has been observed in AIS families. In a recent study of Chinese population, a novel mutation of AKAP2 was observed in a family with AIS, which was believed to play a role in the aetiopathogenesis of AIS. The purpose of this study was to investigate whether genetic variants of AKAP2 are associated with the susceptibility of AIS in Chinese population. Methods SNV c.2645A > C of AKAP2 was genotyped in 1254 AIS patients and 1232 normal controls using allelic-specific multiple ligase detection reactions. SNPs located within 5′ untranslated regions (UTR) and 3′ UTR of AKAP2 gene were selected using Haploview (v2.6). The GWAS database composed of 961 AIS patients and 1499 controls was referred to for the genotyping information. Relative mRNA expression of AKAP2 in peripheral blood was analyzed for 33 patients and 18 age-matched controls. Comparison between the cases and controls were performed using the Student’s t test. PLINK (v1.90) was used to calculate the association of each SNP with the disease by Cochran-Armitage trend test. Results All the patients and the controls presented a genotype of AA in c.2645A > C of AKAP2, and there was no case of mutation in any subject. A total of 116 SNPs covering AKAP2 were analyzed, and none of these SNPs was found to have significantly different allele frequency between the cases and the controls. The mRNA expression of AKAP2 in patients was comparable with that in the controls (1.9 ± 0.8 vs. 1.8 ± 0.7, p = 0.66). Conclusions Our large-scale replication study of the variants in AKAP2 gene did not support its association with the susceptibility of AIS in the Chinese population. In future study, functional studies of the previously reported rare variant are warranted to clarify whether the variant can regulate the expression of AKAP2. The whole AKAP2 gene can be sequenced in larger AIS cohorts to identify potentially missing mutations.
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Affiliation(s)
- Leilei Xu
- Department of Spine Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Zhongshan Road 321, Nanjing, 210008, China
| | - Chao Xia
- Department of Spine Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Zhongshan Road 321, Nanjing, 210008, China
| | - Weiguo Zhu
- Department of Spine Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Zhongshan Road 321, Nanjing, 210008, China
| | - Zhenhua Feng
- Department of Spine Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Zhongshan Road 321, Nanjing, 210008, China
| | - Xiaodong Qin
- Department of Spine Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Zhongshan Road 321, Nanjing, 210008, China
| | - Weixiang Sun
- Department of Spine Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Zhongshan Road 321, Nanjing, 210008, China
| | - Yong Qiu
- Department of Spine Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Zhongshan Road 321, Nanjing, 210008, China
| | - Zezhang Zhu
- Department of Spine Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Zhongshan Road 321, Nanjing, 210008, China.
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Ogura Y, Kou I, Takahashi Y, Takeda K, Minami S, Kawakami N, Uno K, Ito M, Yonezawa I, Kaito T, Yanagida H, Watanabe K, Taneichi H, Harimaya K, Taniguchi Y, Kotani T, Tsuji T, Suzuki T, Sudo H, Fujita N, Yagi M, Chiba K, Kubo M, Kamatani Y, Nakamura M, Matsumoto M, Watanabe K, Ikegawa S, Tsuyoshi S, Katsuki K, Tsutomu A, Kotaro N, Kenichiro K, Hideki S, Takahiro I, Satoru D, Naobumi H, Eijiro O. A functional variant in MIR4300HG, the host gene of microRNA MIR4300 is associated with progression of adolescent idiopathic scoliosis. Hum Mol Genet 2017; 26:4086-4092. [DOI: 10.1093/hmg/ddx291] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 07/17/2017] [Indexed: 12/19/2022] Open
Affiliation(s)
- Yoji Ogura
- Laboratory of Bone and Joint Diseases, RIKEN Center for Integrative Medical Sciences, Tokyo 108-8639, Japan,
- Department of Orthopaedic Surgery, Keio University School of Medicine, Tokyo 160-8582, Japan,
| | - Ikuyo Kou
- Laboratory of Bone and Joint Diseases, RIKEN Center for Integrative Medical Sciences, Tokyo 108-8639, Japan,
| | - Yohei Takahashi
- Department of Orthopaedic Surgery, Keio University School of Medicine, Tokyo 160-8582, Japan,
| | - Kazuki Takeda
- Laboratory of Bone and Joint Diseases, RIKEN Center for Integrative Medical Sciences, Tokyo 108-8639, Japan,
- Department of Orthopaedic Surgery, Keio University School of Medicine, Tokyo 160-8582, Japan,
| | - Shohei Minami
- Department of Orthopaedic Surgery, Seirei Sakura Citizen Hospital, Sakura 285-8765, Japan,
| | - Noriaki Kawakami
- Department of Orthopaedic Surgery, Meijo Hospital, Nagoya 460-0001, Japan,
| | - Koki Uno
- Department of Orthopaedic Surgery, National Hospital Organization, Kobe Medical Center, Kobe 654-0155 Japan,
| | - Manabu Ito
- Department of Orthopaedic Surgery, National Hospital Organization, Hokkaido Medical Center, Hokkaido 063-0005 Japan,
| | - Ikuho Yonezawa
- Department of Orthopaedic Surgery, Juntendo University School of Medicine, Tokyo 113-8431, Japan,
| | - Takashi Kaito
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka 565-0871, Japan,
| | - Haruhisa Yanagida
- Department of Orthopaedic Surgery, Fukuoka Children's Hospital, Fukuoka 810-0063, Japan,
| | - Kei Watanabe
- Department of Orthopaedic Surgery, Niigata University Hospital, Niigata 951-8520, Japan,
| | - Hiroshi Taneichi
- Department of Orthopaedic Surgery, Dokkyo Medical University School of Medicine, Mibu 321-0293, Japan,
| | - Katsumi Harimaya
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan,
| | - Yuki Taniguchi
- Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, Tokyo 113-0033, Japan,
| | - Toshiaki Kotani
- Department of Orthopaedic Surgery, Seirei Sakura Citizen Hospital, Sakura 285-8765, Japan,
| | - Taichi Tsuji
- Department of Orthopaedic Surgery, Meijo Hospital, Nagoya 460-0001, Japan,
| | - Teppei Suzuki
- Department of Orthopaedic Surgery, National Hospital Organization, Kobe Medical Center, Kobe 654-0155 Japan,
| | - Hideki Sudo
- Department of Advanced Medicine for Spine and Spinal Cord Disorders, Hokkaido University Graduate School of Medicine, Sapporo 060-8648, Japan,
| | - Nobuyuki Fujita
- Department of Orthopaedic Surgery, Keio University School of Medicine, Tokyo 160-8582, Japan,
| | - Mitsuru Yagi
- Department of Orthopaedic Surgery, Keio University School of Medicine, Tokyo 160-8582, Japan,
| | - Kazuhiro Chiba
- Department of Orthopaedic Surgery, National Defense Medical College, Saitama 359-8513, Japan,
| | - Michiaki Kubo
- Laboratory for Genotyping Development, RIKEN Center for Integrative Medical Sciences, Yokohama 230-0045, Japan,
| | - Yoichiro Kamatani
- Laboratory for Statistical Analysis, RIKEN Center for Integrative Medical Sciences, Yokohama 230-0045, Japan
| | - Masaya Nakamura
- Department of Orthopaedic Surgery, Keio University School of Medicine, Tokyo 160-8582, Japan,
| | - Morio Matsumoto
- Department of Orthopaedic Surgery, Keio University School of Medicine, Tokyo 160-8582, Japan,
| | - Kota Watanabe
- Department of Orthopaedic Surgery, Keio University School of Medicine, Tokyo 160-8582, Japan,
| | - Shiro Ikegawa
- Laboratory of Bone and Joint Diseases, RIKEN Center for Integrative Medical Sciences, Tokyo 108-8639, Japan,
| | - Sakuma Tsuyoshi
- Department of Orthopaedic Surgery, Seirei Sakura Citizen Hospital, Sakura 285-8765, Japan
| | - Kono Katsuki
- Department of Orthopaedic Surgery, Kono Othopaedic Clinic, Tokyo 156-0053, Japan
| | - Akazawa Tsutomu
- Department of Orthopaedic Surgery, St. Marianna University School of Medicine, Kawasaki 216-8511, Japan
| | - Nishida Kotaro
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - Kakutani Kenichiro
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - Shigematsu Hideki
- Department of Orthopaedic Surgery, Nara Medical University, Nara 634-8521, Japan
| | - Iida Takahiro
- Department of Orthopaedic Surgery, Dokkyo Medical University Koshigaya Hospital, Koshigaya 343-8555, Japan,
| | - Demura Satoru
- Department of Orthopaedic Surgery, Kanazawa University School of Medicine, Kanazawa 920-8641, Japan
| | - Hosogane Naobumi
- Department of Orthopaedic Surgery, National Defense Medical College, Saitama 359-8513, Japan,
| | - Okada Eijiro
- Department of Orthopaedic Surgery, Saiseikai Central Hospital, Tokyo 108-0073, Japan
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Samaan MC, Missiuna P, Peterson D, Thabane L. Understanding the role of the immune system in adolescent idiopathic scoliosis: Immunometabolic CONnections to Scoliosis (ICONS) study protocol. BMJ Open 2016; 6:e011812. [PMID: 27401365 PMCID: PMC4947809 DOI: 10.1136/bmjopen-2016-011812] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION Adolescent idiopathic scoliosis (AIS) affects up to 3% of children around the world. There is limited knowledge of AIS aetiopathogenesis, and this evidence is needed to develop new management strategies. Paraspinal muscle in AIS demonstrates evidence of differential fibrosis based on curve sidedness. Fibrosis is the hallmark of macrophage-driven inflammation and tissue remodelling, yet the mechanisms of fibrosis in paraspinal muscle in AIS are poorly understood. OBJECTIVES The primary objective of this study is to determine the influence of curve sidedness on paraspinal muscle inflammation. Secondary objectives include defining the mechanisms of macrophage homing to muscle, and determining muscle-macrophage crosstalk in muscle fibrosis in AIS. METHODS AND ANALYSIS This is a cross-sectional study conducted in a tertiary paediatric centre in Hamilton, Ontario, Canada. We will recruit boys and girls, 10-17 years of age, who are having surgery to correct AIS. We will exclude children who have an active infection or are on immunosuppressive therapies within 2 weeks of surgery, smokers and pregnant girls. Paraspinal muscle biopsies will be obtained at the start of surgery. Also, blood and urine samples will be collected from participants, who will fill questionnaires about their lifestyle. Anthropometric measures will also be collected including height, weight, waist and hip circumferences. ETHICS AND DISSEMINATION This study has received ethics authorisation by the institutional review board. This work will be published in peer-reviewed journals and will be presented in oral and poster formats at scientific meetings. DISCUSSION This study will explore the mechanisms of paraspinal muscle inflammation, remodelling and fibrosis in AIS. This will help identify pathways and molecules as potential therapeutic targets to treat and prevent AIS. It may also yield markers that predict scoliosis progression and response to treatment in these children.
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Affiliation(s)
- M Constantine Samaan
- Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada
- Division of Pediatric Endocrinology, McMaster Children's Hospital, Hamilton, Ontario, Canada
- Department of Clinical Epidemiology & Biostatistics, McMaster University, Hamilton, Ontario, Canada
| | - Paul Missiuna
- Division of Orthopedics, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | - Devin Peterson
- Division of Orthopedics, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | - Lehana Thabane
- Department of Clinical Epidemiology & Biostatistics, McMaster University, Hamilton, Ontario, Canada
- Department of Anesthesia, McMaster University, Hamilton, Ontario, Canada
- Centre for Evaluation of Medicines, Hamilton, Ontario, Canada
- Biostatistics unit, St Joseph's Healthcare Hamilton, Hamilton, Ontario, Canada
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Xu L, Qin X, Sun W, Qiao J, Qiu Y, Zhu Z. Replication of Association Between 53 Single-Nucleotide Polymorphisms in a DNA-Based Diagnostic Test and AIS Progression in Chinese Han Population. Spine (Phila Pa 1976) 2016; 41:306-310. [PMID: 26579958 DOI: 10.1097/brs.0000000000001203] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN A case-only study. OBJECTIVE The aim of this study was to evaluate the association of the 53 single-nucleotide polymorphisms (SNPs) in a prognostic test with curve progression in Chinese adolescent idiopathic scoliosis (AIS) patients. SUMMARY OF BACKGROUND DATA "ScoliScore" was the first diagnostic kit developed for curve progression of AIS in the white population. To date, there is still a paucity of validation of ScoliScore in Chinese Han population. METHODS A total of 670 AIS patients were included in the study, with 313 patients assigned to the nonprogression group and the other 357 patients assigned to the progression group. A panel of 53 SNPs encompassed in ScoliScore were genotyped using the PCR-based Invader assay. The allele frequencies were compared between AIS patients with progressive curve and those with nonprogressive curve. RESULTS SNP rs9945359 and rs17044552 are the only 2 SNPs that had significantly different allele frequencies between the 2 groups. Allele A of rs9945359 was significantly higher in the progression group than in the nonprogression group (25.7% vs 19.5%, P = 0.01), and allele A of rs17044552 was significantly lower in the progression group (11.5% vs 16.4%, P = 0.01). The odds ratio (OR) of these 2 SNPs were 1.42 [95% confidence interval (95% CI) 1.09-1.88] and 0.65 (95% CI 0.47-0.91), respectively. As for the allele frequencies of the other 51 SNPs, no significant difference was found between the 2 groups. CONCLUSION ScoliScore could not be able to predict the curve progression of AIS in Chinese Han population. However, the role of this test in other populations cannot be totally excluded, and additional replication studies in other ethnic groups are warranted to evaluate the significance of these SNPs. LEVEL OF EVIDENCE 4.
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Affiliation(s)
- Leilei Xu
- Department of Spine Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
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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: 59] [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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Xu L, Huang S, Qin X, Mao S, Qiao J, Qian BP, Qiu Y, Zhu Z. Investigation of the 53 Markers in a DNA-Based Prognostic Test Revealing New Predisposition Genes for Adolescent Idiopathic Scoliosis. Spine (Phila Pa 1976) 2015; 40:1086-1091. [PMID: 25811265 DOI: 10.1097/brs.0000000000000900] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN A genetic association study of 53 single nucleotide polymorphisms (SNPs) with adolescent idiopathic scoliosis (AIS). OBJECTIVE To explore new predisposition genes of AIS in Chinese Han population SUMMARY OF BACKGROUND DATA.: A panel of 53 SNPs were reported to be associated with curve severity of AIS. However, there is still a lack of knowledge concerning the association of these SNPs with the susceptibility of AIS in the Chinese Han population. METHODS A gene-based association study was conducted by genotyping the 53 SNPs of a prognostic test. DNA samples of 990 female patients with AIS and 1188 age-matched healthy controls were analyzed using the polymerase chain reaction-based Invader assay. The χ test was carried out to compare the differences of genotype and allele distributions between patients with AIS and healthy controls. RESULTS A total of 4 SNPs were found to present significant differences in allele or genotype frequencies between the 2 groups. Compared with normal controls, patients were found to have significantly higher allele G of rs12618119 and allele A of rs9945359. Besides, patients were found to have significantly lower allele T of rs4661748 and allele C of rs4782809 than the normal controls. BIN1, CDH13, SETBP1, and SPATA21 genes could be associated with the susceptibility of AIS. CONCLUSION Four new predisposition genes of AIS were identified on the basis of a large-scale case-control study. Putting all these findings together, it suggests that AIS is a multifactorial disease possibly involving different pathways such as development of central neural system and bone formation. Further studies exploring more predisposition gene are essential to illustrate the etiology of AIS and to guide the prevention or prognosis of the disease. LEVEL OF EVIDENCE 3.
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Affiliation(s)
- Leilei Xu
- *Department of Spine Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China; and †Department of Internal Medicine, Affiliated Hospital of Nantong University, Nantong, China
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Giampietro PF. SNPping away at the genetic basis of adolescent idiopathic scoliosis. ANNALS OF TRANSLATIONAL MEDICINE 2015; 3:S26. [PMID: 26046072 DOI: 10.3978/j.issn.2305-5839.2015.02.34] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Accepted: 02/20/2015] [Indexed: 11/14/2022]
Abstract
Adolescent idiopathic scoliosis (AIS) is a genetically complex disorder of spine development, defined by a lateral curvature of the spine of 10º or greater which affects children during their pubertal growth spurt. Prior linkage and candidate gene approaches to elucidating the genetic basis of AIS have been of limited use for identification of candidate genes for this condition. Genome wide association studies (GWAS) have recently identified single nucleotide polymorphisms (SNPs) in LBX1 and G protein-coupled receptor 126 (GPR126) that contribute to AIS occurrence. These discoveries support prior etiologic hypotheses regarding altered somatosensory function and skeletal growth in AIS. However, these loci account for a small percentage of the phenotypic variance associated with AIS, indicating the vast majority of the genetic causes of AIS remain to be delineated. A major translational application regarding understanding the genetic contributions to AIS relates to bracing efficacy.
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Affiliation(s)
- Philip F Giampietro
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA
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Thompson ME, Kohring JM, McFann K, McNair B, Hansen JK, Miller NH. Predicting excessive hemorrhage in adolescent idiopathic scoliosis patients undergoing posterior spinal instrumentation and fusion. Spine J 2014; 14:1392-8. [PMID: 24139751 DOI: 10.1016/j.spinee.2013.08.022] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2012] [Revised: 07/07/2013] [Accepted: 08/21/2013] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT Blood loss in patients with adolescent idiopathic scoliosis (AIS) who are undergoing posterior spinal instrumentation and fusion (PSIF) varies greatly. The reason for this wide range is not clear. There are reports of unexpected massive hemorrhage during these surgeries. Many studies reflect authors' preferences for describing blood loss in terms of levels fused, weight, or percent blood volume. PURPOSE We sought to define excessive blood loss clinically, determine its incidence in our study population, and identify associated variables. Results are intended to inform perioperative preparation for these cases. Results may be used to inform prospective study designs. STUDY DESIGN This was a retrospective uncontrolled case series. PATIENT SAMPLE A total of 311 consecutive AIS PSIF cases during the years 2005-2010 performed at Children's Hospital Colorado were studied. OUTCOME MEASURES We measured estimated blood loss (EBL) and its association with multiple patient, surgical, and anesthetic variables. METHODS Thirty-one variables potentially related to blood loss were collected retrospectively from electronic medical records for analysis. When no cases of clearly excessive blood loss were identified on the basis of visual examination of EBL distribution, we chose to use the top 10% of blood loss cases as an arbitrary determinant of excessive blood loss. Three cut-off strategies captured the top 10% of EBL cases with little variation in who was selected: 1) >1,700 mL of EBL, 2) >50% EBL/estimated blood volume, and 3) >150 mL/level fused EBL. Variables were compared with the χ(2) test, Fisher exact, or t-tests, when appropriate. A generalized linear mixed logistic model was used to determine the probability of excessive blood loss based on the number of levels fused. RESULTS The average EBL was 89.17 mL/level fused (range, 45-133 mL). EBL fit a progressively wider distribution as surgical complexity (number of levels fused) increased. Number of levels fused (p<.0001), operative time (p=.0139), number of screws (p<.0001), and maximal preoperative Cobb angle (p=.0491) were significantly associated with excessive blood loss. The variable that was most strongly associated with excessive blood loss was the number of levels fused, with ≥12 levels having a probability of >10% of excessive hemorrhage. CONCLUSION Excessive blood loss may be an arbitrary number until future research suggests otherwise. We show that the probability of exceeding one of our arbitrary definitions is approximately 10% when 12 or more levels are fused. If a 10% incidence of excessive blood loss is determined to be clinically relevant, teams might wish to pursue hematologic consultation and maximal blood conservation strategy when 12 or more levels are planned for fusion.
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Affiliation(s)
- Mark E Thompson
- Department of Anesthesiology, Children's Hospital Colorado, University of Denver, 13123 E. 16th Ave., Box B090, Aurora, CO 80045, USA.
| | - Jessica M Kohring
- Department of Orthopaedics, University of Utah School of Medicine, 590 Wakara Way, Salt Lake City, UT 84108, USA
| | - Kim McFann
- Colorado School of Public Health, University of Colorado Denver, Colorado Biostatistics Consortium, 12477 E. 19th Ave., Building 406, Room 100, Aurora, CO 80045, USA
| | - Bryan McNair
- Colorado School of Public Health, University of Colorado Denver, Colorado Biostatistics Consortium, 12477 E. 19th Ave., Building 406, Room 100, Aurora, CO 80045, USA
| | - Jennifer K Hansen
- Department of Anesthesiology, The University of Kansas Medical Center, 3901 Rainbow Blvd, Mailstop 1034, Kansas City, KS 66160, USA
| | - Nancy H Miller
- Department of Orthopedic Surgery, Musculoskeletal Research Center, Children's Hospital Colorado, University of Colorado Denver, 13123 E. 16th Ave., Box 060, Aurora, CO 80045, USA
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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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Yee A, Song YQ, Chan D, Cheung KMC. Understanding the Basis of Genetic Studies: Adolescent Idiopathic Scoliosis as an Example. Spine Deform 2014; 2:1-9. [PMID: 27927437 DOI: 10.1016/j.jspd.2013.09.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Revised: 08/24/2013] [Accepted: 09/01/2013] [Indexed: 12/31/2022]
Abstract
STUDY DESIGN A review of the general concepts of genetics studies with specific reference to adolescent idiopathic scoliosis (AIS). OBJECTIVES To equip the average spine surgeon with the vocabulary and understanding needed to understand the genetics of scoliosis and the approaches used to identify risk genes. SUMMARY OF BACKGROUND DATA Adolescent idiopathic scoliosis is a multifactorial disease. Increasing evidence from families and monozygotic twins suggests the involvement of genetic factors. An estimation of heritability also indicates a strong influence of genetics on the disease. Increasing focus has been placed on identifying genes and genetic variants associated with AIS. REVIEW This is a review of genes and genetic variations, the phenotype definition of AIS in genetics studies, concepts and approaches to identifying associated genes, and the evaluation of results. Different types of genetic variations are present in the genome. These variations may modulate the expression or function of protein products, which in turn alter individuals' susceptibility to disease. Identifying the variants related to AIS requires an objective and clearly defined phenotype, among which the Cobb angle is commonly used. The phenotype helps classify subjects into cases and controls. By selecting candidate genes of growth factors and hormonal receptors, which are speculated to be involved in the mechanism of disease, the variants within these genes were compared between cases and controls to identify any differences. Another approach was to use large families and inspect the co-segregation of variants and phenotypes. Recently, arrays covering the variants of the whole genome were developed and assist in high-throughput screening for associated genes. CONCLUSIONS Genetic factors have an important role in AIS. Deciphering the genes and genetic variants associated with AIS can improve our understanding of the mechanisms of the disease, as well as assist in designing treatment methods and preventive measures.
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Affiliation(s)
- Anita Yee
- Department of Biochemistry, University of Hong Kong, 3/F Laboratory Block, LKS Faculty of Medicine, 21 Sassoon Road, Pokfulam, Hong Kong, China
| | - You-Qiang Song
- Department of Biochemistry, University of Hong Kong, 3/F Laboratory Block, LKS Faculty of Medicine, 21 Sassoon Road, Pokfulam, Hong Kong, China
| | - Danny Chan
- Department of Biochemistry, University of Hong Kong, 3/F Laboratory Block, LKS Faculty of Medicine, 21 Sassoon Road, Pokfulam, Hong Kong, China
| | - Kenneth M C Cheung
- Department of Orthopaedics and Traumatology, 5/F Professorial Block, Queen Mary Hospital, University of Hong Kong, Pokfulam, Hong Kong, China.
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A replication study for association of 53 single nucleotide polymorphisms in a scoliosis prognostic test with progression of adolescent idiopathic scoliosis in Japanese. Spine (Phila Pa 1976) 2013; 38:1375-9. [PMID: 23591653 DOI: 10.1097/brs.0b013e3182947d21] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [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 single nucleotide polymorphisms (SNPs) previously reported to be associated with curve progression of adolescent idiopathic scoliosis (AIS). OBJECTIVE To determine whether the association of 53 SNPs with curve progression reported in white patients with AIS are replicated in Japanese patients with AIS. SUMMARY OF BACKGROUND DATA Predicting curve progression is important in clinical practice of AIS. The progression of AIS is reported to be associated with a number of genes. Associations with 53 SNPs have been reported, and the SNPs are used for a progression test in white patients with AIS; however, there has been no replication study for their association. METHODS We recruited 2117 patients with AIS with 10° or more (Cobb angle) of scoliosis curves. They were divided into progression and nonprogression groups according to their Cobb angle. We defined the progression of the curve as Cobb angle more than 50° for skeletally mature subjects and more than 40° for immature patients, subjects. We defined the nonprogression of the curve as Cobb angle 50° or less only for skeletally mature subjects. Of the 2117 patients, 1714 patients with AIS were allocated to either the progression or nonprogression group. We evaluated the association of 53 SNPs with curve progression by comparing risk allele frequencies between the 2 groups. RESULTS We evaluated the progression (N = 600) and nonprogression (N = 1114) subjects. Their risk allele frequencies were not different significantly. We found no replication of the association on AIS curve progression in any of the SNPs. CONCLUSION The associations of the 53 SNPs with progression of AIS curve are not definite. Large-scale association studies based on appropriate criteria for progression would be necessary to identify SNPs associated with the curve progression. LEVEL OF EVIDENCE N/A.
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Mao S, Xu L, Zhu Z, Qian B, Qiao J, Yi L, Qiu Y. Association between genetic determinants of peak height velocity during puberty and predisposition to adolescent idiopathic scoliosis. Spine (Phila Pa 1976) 2013; 38:1034-1039. [PMID: 23354108 DOI: 10.1097/brs.0b013e318287fcfd] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN An association study to comprehensively clarify variations of genetic determinants of peak height velocity (PHV) during puberty in adolescent idiopathic scoliosis (AIS). OBJECTIVE To investigate whether the genetic determinants of timing and magnitude of PHV during puberty are associated with the susceptibility or curve progression of the female patients with AIS. SUMMARY OF BACKGROUND DATA An involvement of abnormal pubertal growth pattern in the etiopathogenesis of AIS has been implicated in previous studies. However, there is no clear consensus on the anthropometric variations of stature or growth rate. The recent advance in the longitudinally identified genetic determinants of PHV offers new opportunities to facilitate analysis of the association of pubertal growth with the susceptibility or curve severity of AIS. METHODS A gene-based association study was conducted using 9 single nucleotide polymorphisms (SNPs) in or near SOCS2, SF3B4/SV2A, C17orf67, CABLES1, DOT1L, CDK6, C6orf106, and LIN28B with confirmed association with PHV, peak growth age, or adult height. A total of 500 patients with AIS and 494 age-matched healthy controls were genotyped using the PCR-based Invader assay. Case-control study and case-only study were performed to define the contribution of the 9 SNPs to predisposition and curve severity of AIS. RESULTS Strong associations between rs12459350 in DOT1L, rs4794665 in C17orf67, and susceptibility of AIS were found, with the PHV increasing allele G of rs12459350 and PHV/adult height increasing allele A of rs4794665 both being significant predisposition alleles of AIS (P = 0.001 for rs12459350, odds ratio = 1.16, 95% confidence interval = 1.06-1.27; P = 0.006 for rs4794665, odd ratio = 1.33, 95% confidence interval = 1.09-1.62). None of the genotyped SNPs was associated with curve severity in patients with AIS. CONCLUSION Polymorphisms of the rs4794665 in C17orf67 and rs12459350 in DOT1L were associated with combined predisposition to AIS susceptibility and higher pubertal PHV, which strongly mirrored the anthropometric findings of taller pubertal stature and accelerated growth rate described in AIS.
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Affiliation(s)
- Saihu Mao
- *Department of Spine Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China; and †Jiangsu Key Laboratory for Molecular Medicine, Nanjing University Medical School, Nanjing, China
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A replication study for association of 5 single nucleotide polymorphisms with curve progression of adolescent idiopathic scoliosis in Japanese patients. Spine (Phila Pa 1976) 2013; 38:571-5. [PMID: 23038618 DOI: 10.1097/brs.0b013e3182761535] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [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 single nucleotide polymorphisms (SNPs) previously reported to be associated with curve progression of adolescent idiopathic scoliosis (AIS). OBJECTIVE To determine whether the association of 5 SNPs with curve progression reported in Chinese with AIS are replicated in Japanese patients with AIS. SUMMARY OF BACKGROUND DATA AIS is a common spinal deformity and has a strong genetic predisposition. Predicting curve progression is important in clinical practice. The progression of AIS is reported to be associated with a number of genes. Associations with neurotrophin 3, G protein-coupled estrogen receptor, and tissue inhibitor of metalloproteinase 2 have been reported in Han Chinese with AIS; however, there has been no replication study for them. METHODS We recruited 2117 patients with AIS with a Cobb angle of 10° or greater of scoliosis curves. They were grouped into progression and nonprogression groups according to their scoliosis curves. Patients whose scoliotic curves were 40° or greater were included in the progression group, and those whose scoliotic curves were less than 30° and had reached skeletal maturation in the nonprogression group. We evaluated the association of 5 SNPs (rs11063714 in neurotrophin 3, rs3808351, rs10269151, and rs4266553 in G protein-coupled estrogen receptor, and rs8179090 in tissue inhibitor of metalloproteinase 2 with curve progression by comparing risk allele frequencies between the 2 groups and the mean Cobb angle for each genotype. RESULTS We evaluated the progression (N = 880) and nonprogression (N = 492) subjects, and their risk allele frequencies were not significantly different. The mean Cobb angle for each genotype also did not have statistical difference. We found no replication of the association on AIS curve progression in any of the SNPs. CONCLUSION The associations of the 5 SNPs with progression of AIS curve are not definite. Large-scale association studies based on appropriate criteria for progression would be necessary to identify SNPs associated with the curve progression.
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Gao W, Peng Y, Liang G, Liang A, Ye W, Zhang L, Sharma S, Su P, Huang D. Association between common variants near LBX1 and adolescent idiopathic scoliosis replicated in the Chinese Han population. PLoS One 2013; 8:e53234. [PMID: 23308168 PMCID: PMC3537668 DOI: 10.1371/journal.pone.0053234] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2012] [Accepted: 11/29/2012] [Indexed: 12/22/2022] Open
Abstract
Background Adolescent idiopathic scoliosis (AIS) is one of the most common spinal deformities found in adolescent populations. Recently, a genome-wide association study (GWAS) in a Japanese population indicated that three single nucleotide polymorphisms (SNPs), rs11190870, rs625039 and rs11598564, all located near the LBX1 gene, may be associated with AIS susceptibility [1]. This study suggests a novel AIS predisposition candidate gene and supports the hypothesis that somatosensory functional disorders could contribute to the pathogenesis of AIS. These findings warrant replication in other populations. Methodology/Principal Findings First, we conducted a case-control study consisting of 953 Chinese Han individuals from southern China (513 patients and 440 healthy controls), and the three SNPs were all found to be associated with AIS predisposition. The ORs were observed as 1.49 (95% CI 1.23–1.80, P = 5.09E-5), 1.70 (95% CI 1.42–2.04, P = 1.17E-8) and 1.52 (95% CI 1.27–1.83, P = 5.54E-6) for rs625039, rs11190870 and rs11598564, respectively. Second, a case-only study including a subgroup of AIS patients (N = 234) was performed to determine the effects of these variants on the severity of the condition. However, we did not find any association between these variants and the severity of curvature. Conclusion This study shows that the genetic variants near the LBX1 gene are associated with AIS susceptibility in Chinese Han population. It successfully replicates the results of the GWAS, which was performed in a Japanese population.
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Affiliation(s)
- Wenjie Gao
- Department of Orthopedic Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangdong, China
- Department of Orthopedic Surgery, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yan Peng
- Department of Orthopedic Surgery, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Guoyan Liang
- Department of Orthopedic Surgery, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Anjing Liang
- Department of Orthopedic Surgery, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Wei Ye
- Department of Orthopedic Surgery, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Liangming Zhang
- Department of Orthopedic Surgery, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Swarkar Sharma
- Seay Center for Musculoskeletal Research, Texas Scottish Rite Hospital for Children, Dallas, Texas, United States of America
- School of Biology and Chemistry, Shri Mata Vaishno Devi University, Katra, India
| | - Peiqiang Su
- Department of Orthopedic Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangdong, China
- * E-mail: (DH); (PS)
| | - Dongsheng Huang
- Department of Orthopedic Surgery, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
- * E-mail: (DH); (PS)
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Giampietro PF. Genetic aspects of congenital and idiopathic scoliosis. SCIENTIFICA 2012; 2012:152365. [PMID: 24278672 PMCID: PMC3820596 DOI: 10.6064/2012/152365] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Accepted: 11/11/2012] [Indexed: 06/02/2023]
Abstract
Congenital and idiopathic scoliosis represent disabling conditions of the spine. While congenital scoliosis (CS) is caused by morphogenic abnormalities in vertebral development, the cause(s) for idiopathic scoliosis is (are) likely to be varied, representing alterations in skeletal growth, neuromuscular imbalances, disturbances involving communication between the brain and spine, and others. Both conditions are characterized by phenotypic and genetic heterogeneities, which contribute to the difficulties in understanding their genetic basis that investigators face. Despite the differences between these two conditions there is observational and experimental evidence supporting common genetic mechanisms. This paper focuses on the clinical features of both CS and IS and highlights genetic and environmental factors which contribute to their occurrence. It is anticipated that emerging genetic technologies and improvements in phenotypic stratification of both conditions will facilitate improved understanding of the genetic basis for these conditions and enable targeted prevention and treatment strategies.
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Affiliation(s)
- Philip F. Giampietro
- Waisman Center, University of Wisconsin-Madison, 1500 Highland Avenue, Madison, WI 53705, USA
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