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Da Y, Zhang L, Chai Z, Du H, Hao L, Zhang L, Zhang Z, Shen Y. An improved diagnostic method for taurodontism and a comparative study on its effectiveness evaluation. PLoS One 2024; 19:e0302810. [PMID: 38713685 DOI: 10.1371/journal.pone.0302810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Accepted: 04/12/2024] [Indexed: 05/09/2024] Open
Abstract
OBJECTIVE The two commonly used diagnostic methods for taurodontism are susceptible to aging changes, mastication wear and other factors. Therefore, this study proposed an improved diagnostic method for taurodontism, and compared it with the previous two methods as a supplement for taurodontism diagnosis. METHODS The included patients were aged 10-89 years and admitted to the Department of Stomatology of Hebei Eye Hospital from June 1, 2022 to May 31, 2023. Eighty cone-beam computed tomography images were divided equally into 4 groups: 10-29, 30-49, 50-69, and 70-89 years old. The right mandibular first molars were selected as measurement objects. Firstly, |BD| and taurodontism index (TI)-related parameters were measured using Shifman and Chanannel's method and crown-body(CB) and root (R) lengths was measured by Seow and Lai's method. The improved method used the length from the cementoenamel junction(CEJ) to the root bifurcation point(body, B)and the root length(root, R)as the measurement objects. Finally, TI, CB/R ratios, and B/R ratios were calculated according to the formulas given below. One-way ANOVA analysis was mainly used to compare the differences in the values, indices and ratios of taurodontism among different age groups (p<0.05). RESULTS With the increase of age, |BD| and TI values decreased significantly (p<0.01). The CB/R ratios of 70-89 years group were significantly lower than those of the other three groups (p<0.01). Ratios derived from the improved method were significantly lower in the 70-89 years than in 10-29 years group (p<0.05). CONCLUSIONS The |BD| and TI parameters proposed by Shifman and channel are significantly influenced by age. The measurements of Seow and Lai (CB/R ratios) were less affected by age compared with those of the former. The improved method(B/R ratios) was least affected by age, which would reduce error and bias in the measurement of taurodontism and obtain more objective results in older patients.
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Affiliation(s)
- Yunmeng Da
- Department of Prothodontics, Hebei Eye Hosipital, Hebei Provincial Key Laboratory of Ophthalmology, Hebei Clinical Medical Research Center of Eye Diseases, Xingtai, Hebei, China
| | - Le Zhang
- Department of Oral and Maxillofacial Surgery, Hebei Eye Hosipital, Hebei Provincial Key Laboratory of Ophthalmology, Hebei Clinical Medical Research Center of Eye Diseases, Xingtai, Hebei, China
| | - Zhihong Chai
- Department of Prothodontics, Hebei Eye Hosipital, Hebei Provincial Key Laboratory of Ophthalmology, Hebei Clinical Medical Research Center of Eye Diseases, Xingtai, Hebei, China
| | - Hongfang Du
- Department of Prothodontics, Hebei Eye Hosipital, Hebei Provincial Key Laboratory of Ophthalmology, Hebei Clinical Medical Research Center of Eye Diseases, Xingtai, Hebei, China
| | - Lele Hao
- Department of Prothodontics, Hebei Eye Hosipital, Hebei Provincial Key Laboratory of Ophthalmology, Hebei Clinical Medical Research Center of Eye Diseases, Xingtai, Hebei, China
| | - Li Zhang
- Department of Prothodontics, Hebei Eye Hosipital, Hebei Provincial Key Laboratory of Ophthalmology, Hebei Clinical Medical Research Center of Eye Diseases, Xingtai, Hebei, China
| | - Zhiyin Zhang
- Department of Prothodontics, Hebei Eye Hosipital, Hebei Provincial Key Laboratory of Ophthalmology, Hebei Clinical Medical Research Center of Eye Diseases, Xingtai, Hebei, China
| | - Yongfan Shen
- Department of Prothodontics, Hebei Eye Hosipital, Hebei Provincial Key Laboratory of Ophthalmology, Hebei Clinical Medical Research Center of Eye Diseases, Xingtai, Hebei, China
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Square TA, Mackey EJ, Sundaram S, Weksler NC, Chen ZZ, Narayanan SN, Miller CT. Modulation of tooth regeneration through opposing responses to Wnt and BMP signals in teleosts. Development 2023; 150:dev202168. [PMID: 38059590 PMCID: PMC10730089 DOI: 10.1242/dev.202168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 11/02/2023] [Indexed: 12/08/2023]
Abstract
Most vertebrate species undergo tooth replacement throughout adult life. This process is marked by the shedding of existing teeth and the regeneration of tooth organs. However, little is known about the genetic circuitry regulating tooth replacement. Here, we tested whether fish orthologs of genes known to regulate mammalian hair regeneration have effects on tooth replacement. Using two fish species that demonstrate distinct modes of tooth regeneration, threespine stickleback (Gasterosteus aculeatus) and zebrafish (Danio rerio), we found that transgenic overexpression of four different genes changed tooth replacement rates in the direction predicted by a hair regeneration model: Wnt10a and Grem2a increased tooth replacement rate, whereas Bmp6 and Dkk2 strongly inhibited tooth formation. Thus, similar to known roles in hair regeneration, Wnt and BMP signals promote and inhibit regeneration, respectively. Regulation of total tooth number was separable from regulation of replacement rates. RNA sequencing of stickleback dental tissue showed that Bmp6 overexpression resulted in an upregulation of Wnt inhibitors. Together, these data support a model in which different epithelial organs, such as teeth and hair, share genetic circuitry driving organ regeneration.
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Affiliation(s)
- Tyler A. Square
- Department of Molecular & Cell Biology, University of California, Berkeley, CA 94720, USA
| | - Emma J. Mackey
- Department of Molecular & Cell Biology, University of California, Berkeley, CA 94720, USA
| | - Shivani Sundaram
- Department of Molecular & Cell Biology, University of California, Berkeley, CA 94720, USA
| | - Naama C. Weksler
- Department of Molecular & Cell Biology, University of California, Berkeley, CA 94720, USA
| | - Zoe Z. Chen
- Department of Molecular & Cell Biology, University of California, Berkeley, CA 94720, USA
| | - Sujanya N. Narayanan
- Department of Molecular & Cell Biology, University of California, Berkeley, CA 94720, USA
| | - Craig T. Miller
- Department of Molecular & Cell Biology, University of California, Berkeley, CA 94720, USA
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3
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Torlińska-Walkowiak N, Majewska KA, Sowińska A, Kędzia A, Opydo-Szymaczek J. Developmental enamel defects and dental anomalies of number and size in children with growth hormone deficiency. Sci Rep 2023; 13:14707. [PMID: 37679467 PMCID: PMC10484903 DOI: 10.1038/s41598-023-41892-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 09/01/2023] [Indexed: 09/09/2023] Open
Abstract
Growth hormone is meaningfully involved in the processes of tooth cells differentiation and tissue formation. The aim of the study was to evaluate the occurrence of dental anomalies: microdontia, macrodontia, hypodontia and developmental defects of enamel (DDE) amongst a group of isolated growth hormone deficient (GHD) patients and healthy children. This cross-sectional study was based on a group of 101 Caucasian children: 33 with GHD (mean age 10.94, SD 2.51) and 68 being healthy, normal height subjects (mean age 10.4, SD 2.38). The dental examination in primary and permanent teeth was carried out by one trained and calibrated dentist, in accordance with the WHO guidelines. It was observed that 33% of GHD patients suffer from dental anomalies (hypodontia, microdontia or macrodontia), the difference between the study group and the control group was statistically significant (33% vs 4%, p < 0.001). Hypodontia and microdontia/macrodontia were the most common problems affecting 18% and 21% of the GHD individuals, respectively. The prevalence of DDE did not differ significantly between GHD group and the control group (58% vs 48%, p > 0.05). As children with GHD present more dental anomalies than their healthy coevals, clinicians should be aware of the possible oral health problems associated with GHD and consider dental screening and management as part of the patient's overall health care plan.
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Affiliation(s)
- Natalia Torlińska-Walkowiak
- Department of Pediatric Dentistry, Poznan University of Medical Sciences, 70 Bukowska Street, 60-812, Poznan, Poland.
| | - Katarzyna A Majewska
- Department of Pediatric Diabetes, Auxology and Obesity, Poznan University of Medical Sciences, 27/33 Szpitalna Street, 60-572, Poznan, Poland
| | - Anna Sowińska
- Department of Computer Science and Statistics, Poznan University of Medical Sciences, 7 Rokietnicka Street, 60-806, Poznan, Poland
| | - Andrzej Kędzia
- Department of Pediatric Diabetes, Auxology and Obesity, Poznan University of Medical Sciences, 27/33 Szpitalna Street, 60-572, Poznan, Poland
| | - Justyna Opydo-Szymaczek
- Department of Pediatric Dentistry, Poznan University of Medical Sciences, 70 Bukowska Street, 60-812, Poznan, Poland
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4
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High prevalence of taurodontism in North China and its relevant factors: a retrospective cohort study. Oral Radiol 2023; 39:266-274. [PMID: 35771318 DOI: 10.1007/s11282-022-00630-1] [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: 12/30/2021] [Accepted: 05/23/2022] [Indexed: 10/17/2022]
Abstract
OBJECTIVE The purpose of this study was to investigate the prevalence and relevant factors of taurodontism in North China. METHODS We retrospectively analysed the cone beam computed tomography (CBCT) of 1025 patients (496 male and 529 female) aged between 10 and 59 years. The crown-body/root (CB/R) ratios of the maxillary and mandibular molars were measured. The prevalence of hypotaurodontism, mesotaurodontism, and hypertaurodontism was then calculated and the incidence of taurodontism along with its relevant factors, was evaluated. RESULTS The overall rate of taurodontism in North China was as high as 78.9%. If the third molars (opsigenes) were excluded, which have a big morphological variation from each other, the rate was 52.4%. The mean CB/R ratio of taurodontism differs from tooth position: maxillary mandibular third molars > maxillary third molars > maxillary second molars > maxillary first molars > mandibular second molars > mandibular first molars (P < 0.05). In addition, the 1025 patients were divided into different age groups, and it was found that the mean CB/R ratio decreased with age (P < 0.05). Moreover, the CB/R ratio of the mandibular first and second molars in female patients was higher than males (P < 0.05). CONCLUSION This study revealed that taurodontism is widely prevalent in North China. The incidence of taurodontism increases the closer the tooth is to the back end of the dental arch, and quite a few of the maxillary and mandibular third molars teeth have tapered roots. And the taurodontism is decreased by age, as there were more affected female than male patients.
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Chavez-Granados PA, Manisekaran R, Acosta-Torres LS, Garcia-Contreras R. CRISPR/Cas gene-editing technology and its advances in dentistry. Biochimie 2021; 194:96-107. [PMID: 34974144 DOI: 10.1016/j.biochi.2021.12.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 12/14/2021] [Accepted: 12/27/2021] [Indexed: 12/25/2022]
Abstract
A recent discovery of revolutionary Clustered regularly interspaced palindromic repeats (CRISPR) is a gene-editing tool that provides a type of adaptive immunity in prokaryotic organisms, which is currently used as a revolutionizing tool in biomedical research. It has a mechanism of correcting genome errors, turning on/off genes in cells and organisms. Most importantly playing a crucial function in bacterial defence by identifying and destroying Deoxyribonucleic acid (DNA) segments during bacteriophage invasions since the CRISPR-associated protein 9 (Cas9) enzyme recognizes and cleaves invasive DNA sequences complementary to CRISPR. Therefore, researchers employ this biological device to manipulate the genes to develop new therapies to combat systemic diseases. Currently, the most significant advance at the laboratory level is the generation of cell and animal models, functional genomic screens, live images of the cell genome, and defective DNA repairs to find the cure for genetic disorders. Even though this technology has enormous biomedical applications in various sectors, this review will summarize CRISPR/Cas emphasizing both the therapeutic and diagnostic mechanisms developed in the field of dentistry and the promising attempts to transfer this technology to clinical application. Finally, future developments are also described, which proposes to use CRISPR/Cas systems for prospective clinical dentistry applications.
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Affiliation(s)
- Patricia Alejandra Chavez-Granados
- Interdisciplinary Research Laboratory (LII), Nanostructures and Biomaterials Area, National School of Higher Studies (ENES) León Unit, Predio el Saucillo y el Potrero, Comunidad de los Tepetates, 37684, León, Mexico
| | - Ravichandran Manisekaran
- Interdisciplinary Research Laboratory (LII), Nanostructures and Biomaterials Area, National School of Higher Studies (ENES) León Unit, Predio el Saucillo y el Potrero, Comunidad de los Tepetates, 37684, León, Mexico
| | - Laura Susana Acosta-Torres
- Interdisciplinary Research Laboratory (LII), Nanostructures and Biomaterials Area, National School of Higher Studies (ENES) León Unit, Predio el Saucillo y el Potrero, Comunidad de los Tepetates, 37684, León, Mexico
| | - Rene Garcia-Contreras
- Interdisciplinary Research Laboratory (LII), Nanostructures and Biomaterials Area, National School of Higher Studies (ENES) León Unit, Predio el Saucillo y el Potrero, Comunidad de los Tepetates, 37684, León, Mexico.
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Rydze RT, Patton B, Briley SM, Salazar-Torralba H, Gipson G, James R, Rajkovic A, Thompson T, Pangas SA. Deletion of Gremlin-2 alters estrous cyclicity and disrupts female fertility in mice. Biol Reprod 2021; 105:1205-1220. [PMID: 34333627 DOI: 10.1093/biolre/ioab148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 06/28/2021] [Accepted: 07/27/2021] [Indexed: 11/13/2022] Open
Abstract
Members of the differential screening-selected gene aberrative in neuroblastoma (DAN) protein family are developmentally conserved extracellular binding proteins that antagonize bone morphogenetic protein (BMP) signaling. This protein family includes the Gremlin proteins, GREM1 and GREM2, which have key functions during embryogenesis and adult physiology. While BMPs play essential roles in ovarian follicle development, the role of the DAN family in female reproductive physiology is less understood. We generated mice null for Grem2 to determine its role in female reproduction in addition to screening patients with primary ovarian insufficiency for variants in GREM2. Grem2-/- mice are viable, but female Grem2-/- mice have diminished fecundity and irregular estrous cycles. This is accompanied by significantly reduced production of ovarian anti-Müllerian hormone (AMH) from small growing follicles, leading to a significant decrease in serum AMH. Surprisingly, as AMH is a well-established marker of the ovarian reserve, morphometric analysis of ovarian follicles showed maintenance of primordial follicles in Grem2-/- mice like wild type littermates. While Grem2 mRNA transcripts were not detected in the pituitary, Grem2 is expressed in hypothalami of wild type female mice, suggesting the potential for dysfunction in multiple tissues composing the hypothalamic-pituitary-ovarian axis that contribute to the subfertility phenotype. Additionally, screening 106 women with primary ovarian insufficiency identified one individual with a heterozygous variant in GREM2 that lies within the predicted BMP-GREM2 interface. In total, these data suggest Grem2 is necessary for female fecundity by playing a novel role in regulating the HPO axis and contributing to female reproductive disease.
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Affiliation(s)
- Robert T Rydze
- Division of Reproductive Endocrinology & Infertility, Department of Obstetrics & Gynecology, Baylor College of Medicine and Texas Children's Hospital Pavilion for Women, Houston, TX, 77030, USA.,Graduate Program in Clinical Scientist Training, Baylor College of Medicine, Houston, TX 77030
| | - Bethany Patton
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX 77030.,Graduate Program in Molecular & Cellular Biology, Baylor College of Medicine, Houston, TX 77030
| | - Shawn M Briley
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX 77030.,Graduate Program in Biochemistry & Molecular Biology, Baylor College of Medicine, Houston, TX 77030
| | | | - Gregory Gipson
- Department of Molecular Genetics, Biochemistry, & Microbiology, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA
| | - Rebecca James
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX 77030
| | - Aleksandar Rajkovic
- Department of Pathology, University of California, San Francisco, USA, Department of OB-GYN, University of California, San Francisco, USA, Institute of Human Genetics, University of California, San Francisco, USA
| | - Thomas Thompson
- Department of Molecular Genetics, Biochemistry, & Microbiology, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA
| | - Stephanie A Pangas
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX 77030.,Graduate Program in Molecular & Cellular Biology, Baylor College of Medicine, Houston, TX 77030.,Graduate Program in Biochemistry & Molecular Biology, Baylor College of Medicine, Houston, TX 77030.,Department of Molecular & Cellular Biology, Baylor College of Medicine, Houston, TX 77030
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Williams M, Zeng Y, Chiquet B, Jacob H, Kurtis Kasper F, Harrington DA, English J, Akyalcin S, Letra A. Functional characterization of ATF1, GREM2 AND WNT10B variants associated with tooth agenesis. Orthod Craniofac Res 2020; 24:486-493. [PMID: 33369218 DOI: 10.1111/ocr.12462] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 12/02/2020] [Accepted: 12/15/2020] [Indexed: 12/17/2022]
Abstract
OBJECTIVE To determine the functional effects of ATF1, WNT10B and GREM2 gene variants identified in individuals with tooth agenesis (TA). SETTINGS AND SAMPLE POPULATION Stem cells from human exfoliated deciduous teeth (SHED) were used as an in vitro model system to test the effect of TA-associated variants. MATERIALS AND METHODS Plasmid constructs containing reference and mutant alleles for ATF1 rs11169552, WNT10B rs833843 and GREM2 rs1414655 variants were transfected into SHED for functional characterization of variants. Allele-specific changes in gene transcription activity, protein expression, cell migration and proliferation, and expression of additional tooth development genes (MSX1, PAX9 and AXIN2) were evaluated. Data analyses were performed using Student's t-test. P-values ≤ .05 were considered statistically significant. RESULTS Mutant variants resulted in significantly decreased transcriptional activity of respective genes (P < 0.05), although no changes in protein localization were noted. Expression of MSX1 was significantly decreased in ATF1- and GREM2-mutant cells, whereas PAX9 or AXIN2 mRNA expression was not significantly altered. Mutant WNT10B had no significant effect on the expression of additional TA genes. ATF1- and GREM2-mutant cells presented increased cell migration. Cell proliferation was also affected with all three mutant alleles. CONCLUSIONS Our results demonstrate that ATF1, WNT10B and GREM2 mutant alleles have modulatory effects on gene/protein function that may contribute to TA.
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Affiliation(s)
- Meredith Williams
- Department of Orthodontics, University of Texas Health Science Center School of Dentistry, Houston, TX, USA
| | - Yu Zeng
- Department of Diagnostic and Biomedical Sciences, University of Texas Health Science Center School of Dentistry, Houston, TX, USA.,Center for Craniofacial Research, University of Texas Health Science Center School of Dentistry, Houston, TX, USA
| | - Brett Chiquet
- Center for Craniofacial Research, University of Texas Health Science Center School of Dentistry, Houston, TX, USA.,Department of Pediatric Dentistry, University of Texas Health Science Center School of Dentistry, Houston, TX, USA.,Pediatric Research Center, University of Texas Health Science Center McGovern Medical School, Houston, TX, USA
| | - Helder Jacob
- Department of Orthodontics, University of Texas Health Science Center School of Dentistry, Houston, TX, USA
| | - Fred Kurtis Kasper
- Department of Orthodontics, University of Texas Health Science Center School of Dentistry, Houston, TX, USA.,Center for Craniofacial Research, University of Texas Health Science Center School of Dentistry, Houston, TX, USA
| | - Daniel A Harrington
- Department of Diagnostic and Biomedical Sciences, University of Texas Health Science Center School of Dentistry, Houston, TX, USA.,Center for Craniofacial Research, University of Texas Health Science Center School of Dentistry, Houston, TX, USA
| | - Jeryl English
- Department of Orthodontics, University of Texas Health Science Center School of Dentistry, Houston, TX, USA
| | - Sercan Akyalcin
- Department of Orthodontics, Tufts University School of Dental Medicine, Boston, MA, USA
| | - Ariadne Letra
- Department of Diagnostic and Biomedical Sciences, University of Texas Health Science Center School of Dentistry, Houston, TX, USA.,Center for Craniofacial Research, University of Texas Health Science Center School of Dentistry, Houston, TX, USA.,Pediatric Research Center, University of Texas Health Science Center McGovern Medical School, Houston, TX, USA
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Wang H, Liu Y, Zheng Y, Zhao X, Lin S, Zhang Q, Zhang X. A novel missense mutation of LRP6 identified by whole-exome sequencing in a Chinese family with non-syndromic tooth agenesis. Orthod Craniofac Res 2020; 24:233-240. [PMID: 32844563 DOI: 10.1111/ocr.12424] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 07/21/2020] [Accepted: 08/14/2020] [Indexed: 12/19/2022]
Abstract
OBJECTIVE The aim of this study was to explore the genetic basis of non-syndromic tooth agenesis (TA) in a Chinese family of five individuals using whole-exome sequencing (WES) analysis. SETTINGS AND SAMPLE POPULATION Five participants/Family-based study of a non-syndromic TA proband. METHODS The proband, proband's mother and grandmother displayed congenital tooth deficiency. Genomic DNA was extracted from the peripheral blood or saliva samples of the proband, her parents and her grandmother, and WES was utilized to identify the causal genetic mutation. The identified mutation was further verified by Sanger sequencing and analysed using bioinformatics tools. RESULTS A novel missense mutation, c.G711T (p.L237F), was identified in the low-density lipoprotein receptor-related protein 6 (LRP6) gene in all affected individuals. Bioinformatics analysis predicted the mutation to be deleterious, with the mutant LRP6 protein displaying a tertiary structural change that might disturb the Wnt/β-catenin signalling pathway. CONCLUSIONS The identification of the mutation in the LRP6 gene and autosomal dominant inheritance with TA in the generations is consistent with the mutation being responsible for TA in the family, and furthers the association of LRP6 with nonsyndromic TA.
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Affiliation(s)
- Huijuan Wang
- Department of Pediatric Dentistry, Stomatological Hospital of Tianjin Medical University, Tianjin, China
| | - Yi Liu
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Yafei Zheng
- University Student Innovation and Entrepreneurship Guidance Center, Tianjin Medical College, Tianjin, China
| | - Xiaoxue Zhao
- Department of Pediatric Dentistry, Tianjin Stomatological Hospital, Tianjin, China
| | - Shiyi Lin
- Department of Pediatric Dentistry, Stomatological Hospital of Tianjin Medical University, Tianjin, China
| | - Qin Zhang
- Department of Pediatric Dentistry, Stomatological Hospital of Tianjin Medical University, Tianjin, China
| | - Xiangyu Zhang
- Department of Pediatric Dentistry, Stomatological Hospital of Tianjin Medical University, Tianjin, China
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Liu S, Li J, Xu J, Liao S, Chen Y, Zhang R, Tian R, Zhang K. Lack of association between PAX6/SOSTDC1/FAM20B gene polymorphisms and mesiodens. BMC Oral Health 2019; 19:90. [PMID: 31133012 PMCID: PMC6537368 DOI: 10.1186/s12903-019-0788-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 05/20/2019] [Indexed: 11/24/2022] Open
Abstract
Background The purpose of this study was to analyze the association between the genetic polymorphism of genes (PAX6, SOSTDC1and FAM20B) and the susceptibility to mesiodens. Methods This study was carried out on 50 patients with mesiodens and 50 controls. The family history of each patient with mesiodens were recorded. Genomic DNA was extracted from saliva samples, and single nucleotide polymorphisms were detected in all exons and exon/intron boundaries of PAX6, SOSTDC1 and FAM20B using Sanger sequencing. The data were analyzed using pearson chi-square test with theoretical frequency ≥ 5. For theoretical frequency less than 5 but at least 1 (≤20% cell), the data were analyzed by continuity correction. For the rest, Fisher’s Exact test was used. A P-value< 0.05 was considered statistically significant. The Odds ratio (OR) and confidence intervals (CI) were recorded. Results Three polymorphisms were detected in PAX6. Two polymorphisms were detected in SOSTDC1. Twenty-nine polymorphisms were detected in FAM20B. Although, the T allele of FAM20B (rs3766626) appears to be associated with mesiodens (P = 0.051), there were no significant differences of PAX6/SOSTDC1/FAM20B gene polymorphisms between the two groups. The T allele of FAM20B (rs3766626) was associated with susceptibility to two mesiodens (P < 0.001; OR = 8.333; CI = 2.516–27.600). Conclusions Lack of association between PAX6/SOSTDC1/FAM20B gene polymorphisms and mesiodens in the population studied was detected. Further studies with large samples on T allele of FAM20B (rs3766626) are needed. Electronic supplementary material The online version of this article (10.1186/s12903-019-0788-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Shanshan Liu
- Department of Stomatology, The First Affiliated Hospital of Bengbu Medical College, 287 Chang Huai Road, Bengbu, 233004, China
| | - Jiancheng Li
- Department of Stomatology, The First Affiliated Hospital of Bengbu Medical College, 287 Chang Huai Road, Bengbu, 233004, China
| | - Jincheng Xu
- Department of Stomatology, The First Affiliated Hospital of Bengbu Medical College, 287 Chang Huai Road, Bengbu, 233004, China
| | - Shengkai Liao
- Department of Stomatology, The First Affiliated Hospital of Bengbu Medical College, 287 Chang Huai Road, Bengbu, 233004, China
| | - Yongfeng Chen
- Department of Stomatology, The First Affiliated Hospital of Bengbu Medical College, 287 Chang Huai Road, Bengbu, 233004, China
| | - Rongxiu Zhang
- Department of Stomatology, The First Affiliated Hospital of Bengbu Medical College, 287 Chang Huai Road, Bengbu, 233004, China
| | - Ruixue Tian
- Department of Stomatology, The First Affiliated Hospital of Bengbu Medical College, 287 Chang Huai Road, Bengbu, 233004, China
| | - Kai Zhang
- Department of Stomatology, The First Affiliated Hospital of Bengbu Medical College, 287 Chang Huai Road, Bengbu, 233004, China.
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10
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Magruder S, Carter E, Williams MA, English J, Akyalcin S, Letra A. Further evidence for the role of WNT10A, WNT10B
and GREM2
as candidate genes for isolated tooth agenesis. Orthod Craniofac Res 2018; 21:258-263. [DOI: 10.1111/ocr.12248] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 09/05/2018] [Accepted: 09/16/2018] [Indexed: 01/08/2023]
Affiliation(s)
- Sonia Magruder
- Department of Orthodontics; UTHealth School of Dentistry; Houston Texas
| | - Emily Carter
- Department of Orthodontics; UTHealth School of Dentistry; Houston Texas
| | - Meredith A. Williams
- Department of Orthodontics; UTHealth School of Dentistry; Houston Texas
- Center for Craniofacial Research; UTHealth School of Dentistry; Houston Texas
| | - Jeryl English
- Department of Orthodontics; UTHealth School of Dentistry; Houston Texas
| | - Sercan Akyalcin
- Department of Orthodontics; Tufts University School of Dental Medicine; Boston Massachusetts
| | - Ariadne Letra
- Center for Craniofacial Research; UTHealth School of Dentistry; Houston Texas
- Department of Diagnostic and Biomedical Sciences; UTHealth School of Dentistry; Houston Texas
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