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Whole exome sequencing of patients with diffuse idiopathic skeletal hyperostosis and calcium pyrophosphate crystal chondrocalcinosis.

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Title: Whole exome sequencing of patients with diffuse idiopathic skeletal hyperostosis and calcium pyrophosphate crystal chondrocalcinosis.
Authors: Parreira, B.1,2, Couto, A. R.1,2, Rocha, F.1,2, Sousa, M.1,2, Faustino, V.1,2, Power, D. M.3, Bruges-Armas, J.1,2 brugesarmas@gmail.com
Source: Acta Reumatológica Portuguesa. Apr-Jun2020, Vol. 45 Issue 2, p116-126. 11p.
Subjects: EXOMES, HYPEROSTOSIS frontalis interna, CHONDROCALCINOSIS, RHEUMATISM, MUSCULOSKELETAL system diseases, MEDICAL genetics, RHEUMATOLOGY
Abstract: Objectives: DISH/CC is a poorly understood pheno-type characterised by peripheral and axial entheso-pathic calcifications, frequently fulfilling the radiological criteria for Diffuse Idiopathic Skeletal Hyperostosis (DISH, MIM 106400), and in some cases associated with Calcium Pyrophosphate Dihydrate (CPPD) Chondrocalcinosis (CC). The concurrence of DISH and CC suggests a shared pathogenic mechanism. In order to identify genetic variants for susceptibility we performed whole exome sequencing in four patients showing this phenotype. Materials and methods: Exome data were filtered in order to find a variant or a group of variants that could be associated with the DISH/CC phenotype. Variants of interest were subsequently confirmed by Sanger sequencing. Selected variants were screened in a cohort of 65 DISH/CC patients vs 118 controls from Azores. The statistical analysis was performed using PLINK V1.07. Results: We identified 21 genetic variants in 17 genes that were directly or indirectly related to mineralization, several are predicted to have a strong effect at a protein level. Phylogenetic analysis of altered amino acids indicates that these are either highly conserved in vertebrates or conserved in mammals. In case-control analyses, variant rs34473884 in PPP2R2D was significantly associated with the DISH/CC phenotype (p=0.028; OR=1.789, 95% CI= 1.060 - 3.021)). Conclusion: The results of the present and preceding studies with the DISH/CC families suggests that the phenotype has a polygenic basis. The PPP2R2D gene could be involved in this phenotype in an as yet unknown way. [ABSTRACT FROM AUTHOR]
Copyright of Acta Reumatológica Portuguesa is the property of Sociedade Portuguesa de Reumatologia and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: MedicLatina
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  Data: Whole exome sequencing of patients with diffuse idiopathic skeletal hyperostosis and calcium pyrophosphate crystal chondrocalcinosis.
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  Data: <searchLink fieldCode="AR" term="%22Parreira%2C+B%2E%22">Parreira, B.</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Couto%2C+A%2E+R%2E%22">Couto, A. R.</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Rocha%2C+F%2E%22">Rocha, F.</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Sousa%2C+M%2E%22">Sousa, M.</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Faustino%2C+V%2E%22">Faustino, V.</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Power%2C+D%2E+M%2E%22">Power, D. M.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Bruges-Armas%2C+J%2E%22">Bruges-Armas, J.</searchLink><relatesTo>1,2</relatesTo><i> brugesarmas@gmail.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Acta+Reumatológica+Portuguesa%22">Acta Reumatológica Portuguesa</searchLink>. Apr-Jun2020, Vol. 45 Issue 2, p116-126. 11p.
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  Data: <searchLink fieldCode="DE" term="%22EXOMES%22">EXOMES</searchLink><br /><searchLink fieldCode="DE" term="%22HYPEROSTOSIS+frontalis+interna%22">HYPEROSTOSIS frontalis interna</searchLink><br /><searchLink fieldCode="DE" term="%22CHONDROCALCINOSIS%22">CHONDROCALCINOSIS</searchLink><br /><searchLink fieldCode="DE" term="%22RHEUMATISM%22">RHEUMATISM</searchLink><br /><searchLink fieldCode="DE" term="%22MUSCULOSKELETAL+system+diseases%22">MUSCULOSKELETAL system diseases</searchLink><br /><searchLink fieldCode="DE" term="%22MEDICAL+genetics%22">MEDICAL genetics</searchLink><br /><searchLink fieldCode="DE" term="%22RHEUMATOLOGY%22">RHEUMATOLOGY</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Objectives: DISH/CC is a poorly understood pheno-type characterised by peripheral and axial entheso-pathic calcifications, frequently fulfilling the radiological criteria for Diffuse Idiopathic Skeletal Hyperostosis (DISH, MIM 106400), and in some cases associated with Calcium Pyrophosphate Dihydrate (CPPD) Chondrocalcinosis (CC). The concurrence of DISH and CC suggests a shared pathogenic mechanism. In order to identify genetic variants for susceptibility we performed whole exome sequencing in four patients showing this phenotype. Materials and methods: Exome data were filtered in order to find a variant or a group of variants that could be associated with the DISH/CC phenotype. Variants of interest were subsequently confirmed by Sanger sequencing. Selected variants were screened in a cohort of 65 DISH/CC patients vs 118 controls from Azores. The statistical analysis was performed using PLINK V1.07. Results: We identified 21 genetic variants in 17 genes that were directly or indirectly related to mineralization, several are predicted to have a strong effect at a protein level. Phylogenetic analysis of altered amino acids indicates that these are either highly conserved in vertebrates or conserved in mammals. In case-control analyses, variant rs34473884 in PPP2R2D was significantly associated with the DISH/CC phenotype (p=0.028; OR=1.789, 95% CI= 1.060 - 3.021)). Conclusion: The results of the present and preceding studies with the DISH/CC families suggests that the phenotype has a polygenic basis. The PPP2R2D gene could be involved in this phenotype in an as yet unknown way. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Acta Reumatológica Portuguesa is the property of Sociedade Portuguesa de Reumatologia and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Text: English
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        PageCount: 11
        StartPage: 116
    Subjects:
      – SubjectFull: EXOMES
        Type: general
      – SubjectFull: HYPEROSTOSIS frontalis interna
        Type: general
      – SubjectFull: CHONDROCALCINOSIS
        Type: general
      – SubjectFull: RHEUMATISM
        Type: general
      – SubjectFull: MUSCULOSKELETAL system diseases
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      – SubjectFull: MEDICAL genetics
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      – SubjectFull: RHEUMATOLOGY
        Type: general
    Titles:
      – TitleFull: Whole exome sequencing of patients with diffuse idiopathic skeletal hyperostosis and calcium pyrophosphate crystal chondrocalcinosis.
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              M: 04
              Text: Apr-Jun2020
              Type: published
              Y: 2020
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