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Véliz Méndez S, Baeza M, Krämer Strenger S. Impression technique modification and oral contracture release surgery for orthodontic treatment in a patient with severe microstomia due to recessive dystrophic epidermolysis bullosa. SPECIAL CARE IN DENTISTRY 2023; 43:689-695. [PMID: 36504454 DOI: 10.1111/scd.12808] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 11/16/2022] [Accepted: 11/18/2022] [Indexed: 09/13/2023]
Abstract
INTRODUCTION Epidermolysis bullosa (EB) is a group of genetic disorders characterized by fragility of the skin and mucosal membranes. Dystrophic EB (DEB) is caused by mutations in the gene coding for type VII collagen. Among the most frequent oral manifestations in Recessive DEB (RDEB) are oral ulcers and blisters, absence of tongue papillae and palatal rugae, ankyloglossia, oral vestibule obliteration, and microstomia. The following report describes a modified impression technique used in a patient with severe RDEB and severe microstomia to obtain models for orthodontic treatment with aligners. CASE REPORT A 25-year-old female patient with severe RDEB was referred for orthodontic treatment. Severe microstomia (8 mm), hindered the use of conventional trays or intraoral scanners to design the aligners. Therefore, a contracture release surgery in combination with a modified impression technique was performed to obtain an optimal impression and subsequent aligners for orthodontic treatment. DISCUSSION This case presents an alternative strategy to provide orthodontic treatment with aligners in patients with severe microstomia due to severe RDEB. Reports of orthodontic treatment in people living with EB, especially in RDEB, are still rare, with few publications about fixed braces, early teeth extraction and removable devices, and none using aligners. Most of the impression techniques reported are aimed at oral rehabilitation. The multidisciplinary approach and impression technique reported should broaden the alternatives of orthodontic techniques provided to patients with EB and severe microstomia. CONCLUSIONS This article describes an oral contracture release surgery and modified impression technique for obtaining good quality impression for the design of orthodontic aligners in patients with severe microstomia due to severe RDEB.
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Affiliation(s)
- Sebastián Véliz Méndez
- Special Care Dentistry Unit, Faculty of Dentistry, University of Chile, Santiago, Chile
- Faculty of Medicine and Dentistry, University of Santiago de Compostela, Santiago, Spain
| | - Mauricio Baeza
- Special Care Dentistry Unit, Faculty of Dentistry, University of Chile, Santiago, Chile
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Pardo MP, Santos GLD, Carvalho IMM, Tjioe KC. Craniofacial Features in Richieri-Costa-Pereira Syndrome. Cleft Palate Craniofac J 2021; 58:1370-1375. [PMID: 33504197 DOI: 10.1177/1055665620987749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE Patients with Richieri-Costa-Pereira syndrome (RCPS) present severe craniofacial alterations and frequently require orthodontic and surgical procedures. Thus, this study aims to describe the craniofacial relationships in patients with RCPS. DESIGN Panoramic radiographs and lateral cephalometric teleradiographs of 7 patients with RCPS and 7 age- and sex-matched nonsyndromic patients were analyzed. Cephalometric measurements were used to determine the size of apical bases, the relationship between them, the pattern of craniofacial growth, and the facial heights of the patients. Interobservers' concordance was verified by intraclass coefficient. For comparison between the groups, paired t test was employed. P values <.05 indicated statistical significance. RESULTS Average age of patients with RCPS was 18.5 years. Six patients were female. All patients with RCPS had Pierre-Robin sequence while 2 also presented cleft mandible. Most patients with RCPS had missing lower central incisors (100%), lower lateral incisors (85.7%), lower second premolars (85.7%), and/or upper lateral incisors (57.1%). Concordance between observers was excellent for all cephalometric measurements (0.87-0.99). Patients with RCPS presented severe craniofacial alterations when compared to control group: sella-nasion-B point (SNB) angle (73.8o ± 4.86o vs 78.85o ± 4.53o, P = .029), maxillary length (7.89 cm ± 0.58 cm vs 16.36 cm ± 0.75 cm, P = .001), mandibular length (9.90 cm ± 0.46 cm vs 20.61 cm ± 0.45 cm, P = .001), upper anterior face height (5.41 cm ± 0.50 cm vs 9.40 cm ± 0.47 cm, P = .001), lower anterior face height (5.48 cm ± 0.75 cm vs 11.66 cm ± 0.55 cm, P = .001), and posterior face height (6.70 cm ± 0.33 cm vs 13.65 cm ± 1.06 cm, P = .001). There was no difference in SNB, A point-nasion-B point, pogonion-nasion-B point, and mandibular place angles between the groups (P > .05). CONCLUSION Patients with RCPS present deficient development of maxilla and mandible when compared with nonsyndromic patients.
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Affiliation(s)
- Milena P Pardo
- Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Rua Silvio Marchione, Sao Paulo, Brazil
| | | | - Izabel M M Carvalho
- Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Rua Silvio Marchione, Sao Paulo, Brazil
| | - Kellen Cristine Tjioe
- Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Rua Silvio Marchione, Sao Paulo, Brazil.,Oral Oncology Center, São Paulo State University, Rua Jose Bonifácio, Araçatuba, Sao Paulo, Brazil
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Hyoid Bone Position and Head Posture in Patients With Richieri-Costa Pereira Syndrome (EIF4A3 Mutations). J Craniofac Surg 2020; 31:e356-e359. [PMID: 32217860 DOI: 10.1097/scs.0000000000006338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Robin sequence with cleft mandible and limb anomalies, known as Richieri-Costa-Pereira syndrome (RCPS), is an autosomal recessive acrofacial dysostosis characterized by mandibular cleft and other craniofacial anomalies and respiratory complications. The aim of this cross-sectional study was to describe the hyoid and head posture of 9 individuals with RCPS using cephalometric measurements and provide a discussion about its implications in obstructive sleep apnea syndrome (OSAS). The study was conducted on lateral cephalograms of patients with RCPS and 9 selected age-matched controls in tertiary cleft center in Brazil. The cephalograms were digitized and analyzed on a software to obtain the vertical and horizontal hyoid position, its relationship with the mandible and the relation of the cranial base and postvertebral line. The t test was used for analysis of means and Levene's test for equality of variances.Cephalometric measurements H-S (vertical distance between hyoid bone and sella) (Supplemental Digital Content, Figure 1, http://links.lww.com/SCS/B247) and H-C4lp (horizontal position of the hyoid in relation to the post-pharyngeal space) showed statistically significant difference compared to controls (P < 0.05). Therefore, the hyoid bone was more inferiorly and posteriorly positioned in the study group compared with the control group. The vertebrae measurements did not present differences compared to controls. The described position of hyoid bone could be involved in the severe OSAS of RCPS patients.
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Lin Y, Liang R, Mao Y, Ye J, Mai R, Gao X, Liu Z, Wainwright T, Li Q, Luo M, Ge L, Li Y, Zou D. Comprehensive analysis of biological networks and the eukaryotic initiation factor 4A-3 gene as pivotal in hepatocellular carcinoma. J Cell Biochem 2020; 121:4094-4107. [PMID: 31898336 DOI: 10.1002/jcb.29596] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Accepted: 12/09/2019] [Indexed: 12/14/2022]
Abstract
Eukaryotic initiation factor 4A-3 (EIF4A3) is a core component of the exon junction complex (EJC). Abnormalities in EIF4A3 are associated with carcinogenesis. The present study aimed to determine the biological role of EIF4A3 in hepatocellular carcinoma (HCC). Our study is based on the analysis of HCC sequencing data from public databases. We first used the Gene Expression Profiling Interactive Analysis tool and ONCOMINE to analyze the EIF4A3 expression, and the results were validated in human clinical tissues by a quantitative real-time polymerase chain reaction, Western blot, and immunohistochemical. Then, we used cBioPortal to identify EIF4A3 alterations and function networks. Finally, we created a network of genes that were positively correlated with EIF4A3 using LinkedOmics, and analyzed this network using Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analyses. For the genes identified, we also analyzed the relevant kinase and transcription factor target networks as well as the protein-protein interaction networks. Our results show that EIF4A3 was overexpressed in HCC tissues in comparison with normal tissues, and high EIF4A3 expression was significantly associated with poor prognosis. Analysis of the functional networks of genes that were co-occurring with EIF4A3 amplification revealed connections with several chemokine signaling pathways. Furthermore, genes that positively correlated with EIF4A3 were mainly related to cell cycle and spliceosome pathways, several cell cycle regulatory kinases, and tumor-associated transcription factors. Finally, crosslinking-immunoprecipitation and high-throughput sequencing (CLIP-seq) data showed that EIF4A3 protein binds to multiple exon regions of the cell cycle regulatory genes cyclin-dependent kinases 1 and 2 and transcription factor E2F1. Our study unveils potential biological networks in HCC and the pivotal role of EIF4A3 as a bridging protein, highlighting the need for an in-depth study of EIF4A3 in carcinogenesis.
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Affiliation(s)
- Yan Lin
- Department of Medical Oncology, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Rong Liang
- Department of Medical Oncology, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Yingwei Mao
- Department of Biology, Pennsylvania State University, University Park, Pennsylvania
| | - Jiazhou Ye
- Department of Hepatobiliary Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Rongyun Mai
- Department of Medical Oncology, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Xing Gao
- Department of Medical Oncology, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Ziyu Liu
- Department of Medical Oncology, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Taylor Wainwright
- Department of Biology, Pennsylvania State University, University Park, Pennsylvania
| | - Qian Li
- Department of Medical Oncology, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Min Luo
- Department of Medical Oncology, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Lianying Ge
- Department of Medical Oncology, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, China.,Department of Endoscopy, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Yongqiang Li
- Department of Medical Oncology, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Donghua Zou
- Department of Neurology, The Fifth Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
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