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Taiete T, Casati MZ, Martins L, Andia DC, Mofatto LS, Coletta RD, Monteiro MF, Araújo CF, Santamaria MP, Corrêa MG, Sallum EA, Nociti FH, Casarin RC. Novel rare frameshift variation in aggressive periodontitis: Exomic and familial-screening analysis. J Periodontol 2019; 91:263-273. [PMID: 31373687 DOI: 10.1002/jper.19-0182] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 06/16/2019] [Accepted: 06/27/2019] [Indexed: 12/24/2022]
Abstract
BACKGROUND Aggressive periodontitis (AgP), currently periodontitis grade C, presents early onset, rapid progression, and a poorly established genetic association. Thus, this study aimed to identify genetic variants associated with AgP via whole exome sequencing (WES) through a familial screening approach. METHODS WES was performed in two nuclear families, including a proband and a parent affected by AgP and an unaffected parent and sibling. Common variants among affected individuals, excluding those common to healthy people, from each family, composed the data set associated with AgP. In silico analysis evaluated the impact of each variant on protein structure and protein-protein interactions. Moreover, identified deleterious variants were validated in a populational analysis (n = 96). RESULTS The missense single nucleotide variations (SNVs) rs142548867 in EEFSEC (c.668C>T), rs574301770 in ZNF136 (c.466C>G), and rs72821893 in KRT25 (c.800G>A) and the frameshift indels rs37146475 in GPRC6A (c.2323-2324insT) and c.1366_1372insGGAGCAG in ELN were identified in AgP and have a predicted functional impact on proteins. In silico analysis indicated that the indel in GPRC6A generates a loss of the C-terminal tail of the Gprca protein. Furthermore, this SNV was significantly associated with AgP in a population-based investigation. CONCLUSION Novel frameshift variation in GPRC6A (c.2323-2324insT) was identified as a potential genetic alteration associated with AgP occurrence.
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Affiliation(s)
- Tiago Taiete
- Department of Prosthodontics and Periodontics, Periodontics Division, Piracicaba Dental School, University of Campinas, Piracicaba, SP, Brazil.,Department of Dentistry, University of Araras, Araras, SP, Brazil
| | - Marcio Z Casati
- Department of Prosthodontics and Periodontics, Periodontics Division, Piracicaba Dental School, University of Campinas, Piracicaba, SP, Brazil.,Department of Periodontics, Paulista University, São Paulo, SP, Brazil
| | - Luciane Martins
- Department of Prosthodontics and Periodontics, Periodontics Division, Piracicaba Dental School, University of Campinas, Piracicaba, SP, Brazil
| | - Denise C Andia
- Department of Prosthodontics and Periodontics, Periodontics Division, Piracicaba Dental School, University of Campinas, Piracicaba, SP, Brazil.,Dental Research Division, School of Dentistry, Paulista University, São Paulo, SP, Brazil
| | - Luciana S Mofatto
- Department of Genetics, Evolution and Bioagents, Genomic and Expression Laboratory, Institute of Biology, University of Campinas, Campinas, SP, Brazil
| | - Ricardo D Coletta
- Department of Oral Diagnosis, School of Dentistry, University of Campinas, Piracicaba, SP, Brazil
| | - Mabelle F Monteiro
- Department of Prosthodontics and Periodontics, Periodontics Division, Piracicaba Dental School, University of Campinas, Piracicaba, SP, Brazil
| | - Cássia F Araújo
- Department of Diagnosis and Surgery, School of Dentistry, State University of São Paulo (UNESP), São José dos Campos, Brazil
| | - Mauro P Santamaria
- Department of Diagnosis and Surgery, School of Dentistry, State University of São Paulo (UNESP), São José dos Campos, Brazil
| | - Mônica G Corrêa
- Dental Research Division, School of Dentistry, Paulista University, São Paulo, SP, Brazil
| | - Enilson A Sallum
- Department of Prosthodontics and Periodontics, Periodontics Division, Piracicaba Dental School, University of Campinas, Piracicaba, SP, Brazil
| | - Francisco H Nociti
- Department of Prosthodontics and Periodontics, Periodontics Division, Piracicaba Dental School, University of Campinas, Piracicaba, SP, Brazil
| | - Renato C Casarin
- Department of Prosthodontics and Periodontics, Periodontics Division, Piracicaba Dental School, University of Campinas, Piracicaba, SP, Brazil
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A Comparison of Variant Calling Pipelines Using Genome in a Bottle as a Reference. BIOMED RESEARCH INTERNATIONAL 2015; 2015:456479. [PMID: 26539496 PMCID: PMC4619817 DOI: 10.1155/2015/456479] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Accepted: 12/17/2014] [Indexed: 12/30/2022]
Abstract
High-throughput sequencing, especially of exomes, is a popular diagnostic tool, but it is difficult to determine which tools are the best at analyzing this data. In this study, we use the NIST Genome in a Bottle results as a novel resource for validation of our exome analysis pipeline. We use six different aligners and five different variant callers to determine which pipeline, of the 30 total, performs the best on a human exome that was used to help generate the list of variants detected by the Genome in a Bottle Consortium. Of these 30 pipelines, we found that Novoalign in conjunction with GATK UnifiedGenotyper exhibited the highest sensitivity while maintaining a low number of false positives for SNVs. However, it is apparent that indels are still difficult for any pipeline to handle with none of the tools achieving an average sensitivity higher than 33% or a Positive Predictive Value (PPV) higher than 53%. Lastly, as expected, it was found that aligners can play as vital a role in variant detection as variant callers themselves.
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Zamanian RT, Kudelko KT, Sung YK, Perez VDJ, Liu J, Spiekerkoetter E. Current clinical management of pulmonary arterial hypertension. Circ Res 2014; 115:131-147. [PMID: 24951763 DOI: 10.1161/circresaha.115.303827] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
During the past 2 decades, there has been a tremendous evolution in the evaluation and care of patients with pulmonary arterial hypertension (PAH). The introduction of targeted PAH therapy consisting of prostacyclin and its analogs, endothelin antagonists, phosphodiesterase-5 inhibitors, and now a soluble guanylate cyclase activator have increased therapeutic options and potentially reduced morbidity and mortality; yet, none of the current therapies have been curative. Current clinical management of PAH has become more complex given the focus on early diagnosis, an increased number of available therapeutics within each mechanistic class, and the emergence of clinically challenging scenarios such as perioperative care. Efforts to standardize the clinical care of patients with PAH have led to the formation of multidisciplinary PAH tertiary care programs that strive to offer medical care based on peer-reviewed evidence-based, and expert consensus guidelines. Furthermore, these tertiary PAH centers often support clinical and basic science research programs to gain novel insights into the pathogenesis of PAH with the goal to improve the clinical management of this devastating disease. In this article, we discuss the clinical approach and management of PAH from the perspective of a single US-based academic institution. We provide an overview of currently available clinical guidelines and offer some insight into how we approach current controversies in clinical management of certain patient subsets. We conclude with an overview of our program structure and a perspective on research and the role of a tertiary PAH center in contributing new knowledge to the field.
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Affiliation(s)
- Roham T Zamanian
- Division of Pulmonary & Critical Care Medicine, Stanford University School of Medicine.,Vera Moulton Wall Center for Pulmonary Vascular Disease, Stanford University School of Medicine
| | - Kristina T Kudelko
- Division of Pulmonary & Critical Care Medicine, Stanford University School of Medicine.,Vera Moulton Wall Center for Pulmonary Vascular Disease, Stanford University School of Medicine
| | - Yon K Sung
- Division of Pulmonary & Critical Care Medicine, Stanford University School of Medicine.,Vera Moulton Wall Center for Pulmonary Vascular Disease, Stanford University School of Medicine
| | - Vinicio de Jesus Perez
- Division of Pulmonary & Critical Care Medicine, Stanford University School of Medicine.,Vera Moulton Wall Center for Pulmonary Vascular Disease, Stanford University School of Medicine
| | - Juliana Liu
- Division of Pulmonary & Critical Care Medicine, Stanford University School of Medicine.,Vera Moulton Wall Center for Pulmonary Vascular Disease, Stanford University School of Medicine
| | - Edda Spiekerkoetter
- Division of Pulmonary & Critical Care Medicine, Stanford University School of Medicine.,Vera Moulton Wall Center for Pulmonary Vascular Disease, Stanford University School of Medicine
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