1
|
Awotoye W, Mossey PA, Hetmanski JB, Gowans LJ, Eshete MA, Adeyemo WL, Alade A, Zeng E, Adamson O, James O, Fashina A, Ogunlewe MO, Naicker T, Adeleke C, Busch T, Li M, Petrin A, Oladayo A, Kayali S, Olotu J, Sule V, Hassan M, Pape J, Aladenika ET, Donkor P, Arthur FK, Obiri-Yeboah S, Sabbah DK, Agbenorku P, Ray D, Plange-Rhule G, Oti AA, Albokhari D, Sobreira N, Dunnwald M, Beaty TH, Taub M, Marazita ML, Adeyemo AA, Murray JC, Butali A. Damaging Mutations in AFDN Contribute to Risk of Nonsyndromic Cleft Lip With or Without Cleft Palate. Cleft Palate Craniofac J 2024; 61:697-705. [PMID: 36384317 PMCID: PMC10185709 DOI: 10.1177/10556656221135926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Novel or rare damaging mutations have been implicated in the developmental pathogenesis of nonsyndromic cleft lip with or without cleft palate (nsCL ± P). Thus, we investigated the human genome for high-impact mutations that could explain the risk of nsCL ± P in our cohorts. We conducted next-generation sequencing (NGS) analysis of 130 nsCL ± P case-parent African trios to identify pathogenic variants that contribute to the risk of clefting. We replicated this analysis using whole-exome sequence data from a Brazilian nsCL ± P cohort. Computational analyses were then used to predict the mechanism by which these variants could result in increased risks for nsCL ± P. We discovered damaging mutations within the AFDN gene, a cell adhesion molecule (CAMs) that was previously shown to contribute to cleft palate in mice. These mutations include p.Met1164Ile, p.Thr453Asn, p.Pro1638Ala, p.Arg669Gln, p.Ala1717Val, and p.Arg1596His. We also discovered a novel splicing p.Leu1588Leu mutation in this protein. Computational analysis suggests that these amino acid changes affect the interactions with other cleft-associated genes including nectins (PVRL1, PVRL2, PVRL3, and PVRL4) CDH1, CTNNA1, and CTNND1. This is the first report on the contribution of AFDN to the risk for nsCL ± P in humans. AFDN encodes AFADIN, an important CAM that forms calcium-independent complexes with nectins 1 and 4 (encoded by the genes PVRL1 and PVRL4). This discovery shows the power of NGS analysis of multiethnic cleft samples in combination with a computational approach in the understanding of the pathogenesis of nsCL ± P.
Collapse
Affiliation(s)
- Waheed Awotoye
- Iowa Institute for Oral Health Research, University of Iowa, Iowa City, IA, USA
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Peter A. Mossey
- Department of Orthodontics, University of Dundee, Dundee, UK
| | - Jacqueline B. Hetmanski
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Lord J.J Gowans
- Department of Biochemistry and Biotechnology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Mekonen A. Eshete
- Addis Ababa University, School Medicine, Surgical Department, Addis Ababa, Ethiopia
| | - Wasiu L. Adeyemo
- Department of Oral and Maxillofacial Surgery, University of Lagos, Lagos Nigeria
| | - Azeez Alade
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
- Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, IA, USA
| | - Erliang Zeng
- Division of Biostatistics and Computational Biology, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Olawale Adamson
- Department of Oral and Maxillofacial Surgery, University of Lagos, Lagos Nigeria
| | - Olutayo James
- Department of Oral and Maxillofacial Surgery, University of Lagos, Lagos Nigeria
| | - Azeez Fashina
- Department of Oral and Maxillofacial Surgery, University of Lagos, Lagos Nigeria
| | - Modupe O Ogunlewe
- Department of Oral and Maxillofacial Surgery, University of Lagos, Lagos Nigeria
| | - Thirona Naicker
- Department of Pediatrics, University of KwaZulu-Natal, South Africa
| | - Chinyere Adeleke
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Tamara Busch
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Mary Li
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Aline Petrin
- Iowa Institute for Oral Health Research, University of Iowa, Iowa City, IA, USA
| | - Abimbola Oladayo
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Sami Kayali
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Joy Olotu
- Department of Anatomy, University of Port Harcourt
| | - Veronica Sule
- Department of Operative Dentistry, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Mohaned Hassan
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - John Pape
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Emmanuel T. Aladenika
- Iowa Institute for Oral Health Research, University of Iowa, Iowa City, IA, USA
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Peter Donkor
- Department of Surgery, School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Fareed K.N. Arthur
- Department of Biochemistry and Biotechnology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Solomon Obiri-Yeboah
- Department of Maxillofacial Sciences, School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Daniel K. Sabbah
- Department of Child Oral Health and Orthodontics, School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Pius Agbenorku
- Department of Surgery, School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Debashree Ray
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Gyikua Plange-Rhule
- Department of Child Health, School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Alexander Acheampong Oti
- Department of Maxillofacial Sciences, School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Daniah Albokhari
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University
| | - Nara Sobreira
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University
| | | | - Terri H. Beaty
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Margaret Taub
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Mary L. Marazita
- Center for Craniofacial and Dental Genetics, Department of Oral and Craniofacial Sciences, School of Dental Medicine, and Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | | | | | - Azeez Butali
- Iowa Institute for Oral Health Research, University of Iowa, Iowa City, IA, USA
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| |
Collapse
|
2
|
Oladayo A, Gowans LJJ, Awotoye W, Alade A, Busch T, Naicker T, Eshete MA, Adeyemo WL, Hetmanski JB, Zeng E, Adamson O, Adeleke C, Li M, Sule V, Kayali S, Olotu J, Mossey PA, Obiri‐Yeboah S, Buxo CJ, Beaty T, Taub M, Donkor P, Marazita ML, Odukoya O, Adeyemo AA, Murray JC, Prince A, Butali A. Clinically actionable secondary findings in 130 triads from sub-Saharan African families with non-syndromic orofacial clefts. Mol Genet Genomic Med 2023; 11:e2237. [PMID: 37496383 PMCID: PMC10568375 DOI: 10.1002/mgg3.2237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 05/23/2023] [Accepted: 06/28/2023] [Indexed: 07/28/2023] Open
Abstract
INTRODUCTION The frequency and implications of secondary findings (SFs) from genomic testing data have been extensively researched. However, little is known about the frequency or reporting of SFs in Africans, who are underrepresented in large-scale population genomic studies. The availability of data from the first whole-genome sequencing for orofacial clefts in an African population motivated this investigation. METHODS In total, 130 case-parent trios were analyzed for SFs within the ACMG SFv.3.0 list genes. Additionally, we filtered for four more genes (HBB, HSD32B, G6PD and ACADM). RESULTS We identified 246 unique variants in 55 genes; five variants in four genes were classified as pathogenic or likely pathogenic (P/LP). The P/LP variants were seen in 2.3% (9/390) of the subjects, a frequency higher than ~1% reported for diverse ethnicities. On the ACMG list, pathogenic variants were observed in PRKAG (p. Glu183Lys). Variants in the PALB2 (p. Glu159Ter), RYR1 (p. Arg2163Leu) and LDLR (p. Asn564Ser) genes were predicted to be LP. CONCLUSION This study provides information on the frequency and pathogenicity of SFs in an African cohort. Early risk detection will help reduce disease burden and contribute to efforts to increase knowledge of the distribution and impact of actionable genomic variants in diverse populations.
Collapse
Affiliation(s)
- Abimbola Oladayo
- Department of Oral Pathology, Radiology and Medicine, College of DentistryUniversity of IowaIowa CityIowaUSA
- Iowa Institute for Oral Health ResearchUniversity of IowaIowa CityIowaUSA
| | - Lord Jephthah Joojo Gowans
- Iowa Institute for Oral Health ResearchUniversity of IowaIowa CityIowaUSA
- Department of Biochemistry and BiotechnologyKwame Nkrumah University of Science and TechnologyKumasiGhana
| | - Waheed Awotoye
- Department of Oral Pathology, Radiology and Medicine, College of DentistryUniversity of IowaIowa CityIowaUSA
- Iowa Institute for Oral Health ResearchUniversity of IowaIowa CityIowaUSA
| | - Azeez Alade
- Department of Oral Pathology, Radiology and Medicine, College of DentistryUniversity of IowaIowa CityIowaUSA
- Department of Epidemiology, College of Public HealthUniversity of IowaIowa CityIowaUSA
| | - Tamara Busch
- Department of Oral Pathology, Radiology and Medicine, College of DentistryUniversity of IowaIowa CityIowaUSA
| | - Thirona Naicker
- Department of PediatricsUniversity of KwaZulu‐NatalPinetownSouth Africa
| | - Mekonen A. Eshete
- School Medicine, Surgical DepartmentAddis Ababa UniversityAddis AbabaEthiopia
| | - Wasiu L. Adeyemo
- Department of Oral and Maxillofacial SurgeryUniversity of LagosLagosNigeria
| | - Jacqueline B. Hetmanski
- Department of EpidemiologySchool of Public Health Johns Hopkins UniversityBaltimoreMarylandUSA
| | - Erliang Zeng
- Division of Biostatistics and Computational Biology, College of DentistryUniversity of IowaIowa CityIowaUSA
| | - Olawale Adamson
- Department of Oral and Maxillofacial SurgeryUniversity of LagosLagosNigeria
| | - Chinyere Adeleke
- Department of Oral Pathology, Radiology and Medicine, College of DentistryUniversity of IowaIowa CityIowaUSA
| | - Mary Li
- Department of Oral Pathology, Radiology and Medicine, College of DentistryUniversity of IowaIowa CityIowaUSA
| | - Veronica Sule
- Department of Operative Dentistry, College of DentistryUniversity of IowaIowa CityIowaUSA
| | - Sami Kayali
- Department of Oral Pathology, Radiology and Medicine, College of DentistryUniversity of IowaIowa CityIowaUSA
| | - Joy Olotu
- Department of AnatomyUniversity of Port HarcourtPort HarcourtNigeria
| | | | - Solomon Obiri‐Yeboah
- Department of Surgery, School of Medicine and DentistryKwame Nkrumah University of Science and TechnologyKumasiGhana
| | - Carmen J. Buxo
- Dental and Craniofacial Genomics CoreUniversity of Puerto Rico School of Dental MedicineSan JuanPuerto RicoUSA
| | - Terri Beaty
- Department of EpidemiologySchool of Public Health Johns Hopkins UniversityBaltimoreMarylandUSA
| | - Margaret Taub
- Department of EpidemiologySchool of Public Health Johns Hopkins UniversityBaltimoreMarylandUSA
| | - Peter Donkor
- Department of Surgery, School of Medicine and DentistryKwame Nkrumah University of Science and TechnologyKumasiGhana
| | - Mary L. Marazita
- Center for Craniofacial and Dental Genetics, Department of Oral and Craniofacial Sciences, School of Dental Medicine, and Department of Human Genetics, Graduate School of Public HealthUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Oluwakemi Odukoya
- Department of Community Health and Primary Care, College of MedicineUniversity of LagosLagosNigeria
| | | | | | - Anya Prince
- College of LawUniversity of IowaIowa CityIowaUSA
| | - Azeez Butali
- Department of Oral Pathology, Radiology and Medicine, College of DentistryUniversity of IowaIowa CityIowaUSA
- Iowa Institute for Oral Health ResearchUniversity of IowaIowa CityIowaUSA
| |
Collapse
|
3
|
Naicker T, Alade A, Adeleke C, Mossey PA, Awotoye WA, Busch T, Li M, Olotu J, Aldous C, Butali A. Novel IRF6 variant in orofacial cleft patients from Durban, South Africa. Mol Genet Genomic Med 2023; 11:e2138. [PMID: 36811272 PMCID: PMC10178789 DOI: 10.1002/mgg3.2138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 12/22/2022] [Accepted: 01/10/2023] [Indexed: 02/24/2023] Open
Abstract
BACKGROUND To date, there are over 320 variants identified in the IRF6 gene that cause Van der Woude syndrome or popliteal pterygium syndrome. We sequenced this gene in a South African orofacial cleft cohort to identify the causal IRF6 variants in our population. METHOD Saliva samples from 100 patients with syndromic and non-syndromic CL ± P were collected. Patients were recruited from the cleft clinics at two public, tertiary hospitals in Durban, South Africa (SA), namely Inkosi Albert Luthuli Central Hospital (IALCH) and KwaZulu-Natal Children's Hospital (KZNCH). We prospectively sequenced the exons of IRF6 in 100 orofacial cleft cases, and where possible, we also sequenced the parents of the individuals to determine the segregation pattern. RESULTS Two variants were identified; one novel (p.Cys114Tyr) and one known (p.Arg84His) missense variant in IRF6 gene were identified. The patient with the p.Cys114Tyr variant was non-syndromic with no clinical VWS phenotype expected of individuals with IRF6 coding variants, and the patient with the p.Arg84His had phenotypic features of popliteal pterygium syndrome. The p.Arg84His variant segregated in the family, with the father also being affected. CONCLUSIONS This study provides evidence that IRF6 variants are found in the South African population. Genetic counselling is essential for affected families, particularly in the absence of a known clinical phenotype since it helps with the plans for future pregnancies.
Collapse
Affiliation(s)
- Thirona Naicker
- Genetics, Department of PaediatricsUniversity of KwaZulu‐NatalDurbanSouth Africa
- Smile Train PartnerNew YorkNew YorkUSA
| | - Azeez Alade
- Department of Oral Pathology, Radiology and Medicine, College of DentistryUniversity of IowaIowa CityIowaUSA
| | - Chinyere Adeleke
- Department of Oral Pathology, Radiology and Medicine, College of DentistryUniversity of IowaIowa CityIowaUSA
| | - Peter A. Mossey
- Department of OrthodonticsUniversity of DundeeDundeeUK
- Smile Train Global Medical Advisory BoardUSA
| | - Waheed A. Awotoye
- Department of Oral Pathology, Radiology and Medicine, College of DentistryUniversity of IowaIowa CityIowaUSA
| | - Tamara Busch
- Department of Oral Pathology, Radiology and Medicine, College of DentistryUniversity of IowaIowa CityIowaUSA
| | - Mary Li
- Department of Oral Pathology, Radiology and Medicine, College of DentistryUniversity of IowaIowa CityIowaUSA
| | - Joy Olotu
- Department of AnatomyUniversity of Port HarcourtPort HarcourtNigeria
| | - Colleen Aldous
- School of Clinical MedicineUniversity of KwaZulu‐NatalDurbanSouth Africa
| | - Azeez Butali
- Department of Oral Pathology, Radiology and Medicine, College of DentistryUniversity of IowaIowa CityIowaUSA
- Smile Train Research and Innovation Advisory CouncilUSA
| |
Collapse
|
4
|
Li M, Olotu J, Buxo-Martinez CJ, Mossey PA, Anand D, Busch T, Alade A, Gowans LJJ, Eshete M, Adeyemo WL, Naicker T, Awotoye WO, Gupta S, Adeleke C, Bravo V, Huang S, Adamson OO, Toraño AM, Bello CA, Soto M, Soto M, Ledesma R, Marquez M, Cordero JF, Lopez-Del Valle LM, Salcedo MI, Debs N, Petrin A, Malloy H, Elhadi K, James O, Ogunlewe MO, Abate F, Hailu A, Mohammed I, Gravem P, Deribew M, Gesses M, Hassan M, Pape J, Obiri-Yeboah S, Arthur FKN, Oti AA, Donkor P, Marazita ML, Lachke SA, Adeyemo AA, Murray JC, Butali A. Variant analyses of candidate genes in orofacial clefts in multi-ethnic populations. Oral Dis 2022; 28:1921-1935. [PMID: 34061439 PMCID: PMC9733635 DOI: 10.1111/odi.13932] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 04/14/2021] [Accepted: 05/09/2021] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Cleft lip with/without cleft palate and cleft palate only is congenital birth defects where the upper lip and/or palate fail to fuse properly during embryonic facial development. Affecting ~1.2/1000 live births worldwide, these orofacial clefts impose significant social and financial burdens on affected individuals and their families. Orofacial clefts have a complex etiology resulting from genetic variants combined with environmental covariates. Recent genome-wide association studies and whole-exome sequencing for orofacial clefts identified significant genetic associations and variants in several genes. Of these, we investigated the role of common/rare variants in SHH, RORA, MRPL53, ACVR1, and GDF11. MATERIALS AND METHODS We sequenced these five genes in 1255 multi-ethnic cleft lip with/without palate and cleft palate only samples in order to find variants that may provide potential explanations for the missing heritability of orofacial clefts. Rare and novel variants were further analyzed using in silico predictive tools. RESULTS Ninteen total variants of interest were found, with variant types including stop-gain, missense, synonymous, intronic, and splice-site variants. Of these, 3 novel missense variants were found, one in SHH, one in RORA, and one in GDF11. CONCLUSION This study provides evidence that variants in SHH, RORA, MRPL53, ACVR1, and GDF11 may contribute to risk of orofacial clefts in various populations.
Collapse
Affiliation(s)
- Mary Li
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Joy Olotu
- Department of Anatomy, University of Health Sciences, University of Port Harcourt, Choba, Nigeria
| | - Carmen J Buxo-Martinez
- Dental and Craniofacial Genomics Core, University of Puerto Rico School of Dental Medicine, San Juan, PR, USA
| | - Peter A Mossey
- Department of Orthodontics, University of Dundee, Dundee, UK
| | - Deepti Anand
- Department of Biological Sciences, University of Delaware, Newark, DE, USA
| | - Tamara Busch
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Azeez Alade
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Lord J J Gowans
- Komfo Anokye Teaching Hospital and Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Mekonen Eshete
- College of Health Sciences, School of Medicine, Addis Ababa University, Addis Ababa, Ethiopia
| | - Wasiu L Adeyemo
- Department of Oral and Maxillofacial Surgery, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Thirona Naicker
- Genetics, Department of Pediatrics, University of KwaZulu-Natal, Durban, South Africa
| | - Waheed O Awotoye
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Sagar Gupta
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Chinyere Adeleke
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Valeria Bravo
- Dental and Craniofacial Genomics Core, University of Puerto Rico School of Dental Medicine, San Juan, PR, USA
| | - Siyong Huang
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Olatunbosun O Adamson
- Department of Oral and Maxillofacial Surgery, College of Medicine, University of Lagos, Lagos, Nigeria
| | | | | | - Mairim Soto
- Dental and Craniofacial Genomics Core, University of Puerto Rico School of Dental Medicine, San Juan, PR, USA
| | - Marilyn Soto
- Dental and Craniofacial Genomics Core, University of Puerto Rico School of Dental Medicine, San Juan, PR, USA
| | - Ricardo Ledesma
- Dental and Craniofacial Genomics Core, University of Puerto Rico School of Dental Medicine, San Juan, PR, USA
| | - Myrellis Marquez
- Dental and Craniofacial Genomics Core, University of Puerto Rico School of Dental Medicine, San Juan, PR, USA
| | - Jose F Cordero
- Dental and Craniofacial Genomics Core, University of Puerto Rico School of Dental Medicine, San Juan, PR, USA
| | - Lydia M Lopez-Del Valle
- Dental and Craniofacial Genomics Core, University of Puerto Rico School of Dental Medicine, San Juan, PR, USA
| | - Maria I Salcedo
- Dental and Craniofacial Genomics Core, University of Puerto Rico School of Dental Medicine, San Juan, PR, USA
| | - Natalio Debs
- Dental and Craniofacial Genomics Core, University of Puerto Rico School of Dental Medicine, San Juan, PR, USA
| | - Aline Petrin
- Department of Orthodontics, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Hannah Malloy
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Khalid Elhadi
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Olutayo James
- Department of Oral and Maxillofacial Surgery, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Mobolanle O Ogunlewe
- Department of Oral and Maxillofacial Surgery, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Fekir Abate
- College of Health Sciences, School of Medicine, Addis Ababa University, Addis Ababa, Ethiopia
| | - Abiye Hailu
- College of Health Sciences, School of Medicine, Addis Ababa University, Addis Ababa, Ethiopia
| | - Ibrahim Mohammed
- College of Health Sciences, School of Medicine, Addis Ababa University, Addis Ababa, Ethiopia
| | - Paul Gravem
- College of Health Sciences, School of Medicine, Addis Ababa University, Addis Ababa, Ethiopia
| | - Milliard Deribew
- College of Health Sciences, School of Medicine, Addis Ababa University, Addis Ababa, Ethiopia
| | - Mulualem Gesses
- College of Health Sciences, School of Medicine, Addis Ababa University, Addis Ababa, Ethiopia
| | - Mohaned Hassan
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - John Pape
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Solomon Obiri-Yeboah
- Komfo Anokye Teaching Hospital and Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Fareed K N Arthur
- Komfo Anokye Teaching Hospital and Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Alexander A Oti
- Komfo Anokye Teaching Hospital and Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Peter Donkor
- Komfo Anokye Teaching Hospital and Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Mary L Marazita
- Center for Craniofacial and Dental Genetics, Departments of Oral Biology and Human Genetics, University of Pittsburgh, Pittsburgh, PA, USA
| | - Salil A Lachke
- Department of Biological Sciences, University of Delaware, Newark, DE, USA
- Center for Bioinformatics and Computational Biology, University of Delaware, Newark, DE, USA
| | - Adebowale A Adeyemo
- Department of Orthodontics, University of Dundee, Dundee, UK
- National Human Genomic Research Institute, Bethesda, MD, USA
| | - Jeffrey C Murray
- Department of Pediatrics, University of Iowa, Iowa City, IA, USA
| | - Azeez Butali
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| |
Collapse
|
5
|
Naicker T, Adeleke CC, Alade A, Mossey PA, Awotoye WA, Busch TD, Li M, Olotu J, Gowans LJJ, Aldous C, Butali A. Novel GRHL3 Variants in a South African Cohort With Cleft Lip and Palate. Cleft Palate Craniofac J 2022; 59:1125-1130. [PMID: 34459660 PMCID: PMC9790085 DOI: 10.1177/10556656211038453] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
OBJECTIVE The etiology of cleft palate (CP) is poorly understood compared with that of cleft lip with or without palate (CL ± P). Recently, variants in Grainyhead like transcription factor 3 (GRHL3) were reported to be associated with a risk for CP in European and some African populations including Nigeria, Ghana, and Ethiopia. In order to identify genetic variants that may further explain the etiology of CP, we sequenced GRHL3 in a South African population to determine if rare variants in GRHL3 are associated with the presence of syndromic or nonsyndromic CP. DESIGN We sequenced the exons of GRHL3 in 100 cases and where possible, we sequenced the parents of the individuals to determine the segregation pattern and presence of de novo variants. SETTING The cleft clinics from 2 public, tertiary hospitals in Durban, South Africa (SA), namely Inkosi Albert Luthuli Central Hospital and KwaZulu-Natal Children's Hospital. PATIENTS, PARTICIPANTS One hundred patients with CL ± P and their parents. INTERVENTIONS Saliva samples were collected. MAIN OUTCOME MEASURES To ascertain the genetic variants in the GRHL3 gene in patients with CL ± P in SA. RESULTS Five variants in GRHL3 were observed; 3 were novel and 2 were known variants. The novel variants were intronic variants (c.1062 + 77A>G and c.627 + 1G>A) and missense variant (p.Asp169Gly). CONCLUSIONS This study provides further evidence that variants in GRHL3 contribute to the risk of nonsyndromic CP in African populations, specifically, in the South African population.
Collapse
Affiliation(s)
- Thirona Naicker
- Department of Paediatrics, Clinical Genetics, 72753University of KwaZulu-Natal and Inkosi Albert Luthuli Central Hospital, Durban, South Africa
- Smile Train Partner
| | - Chinyere C Adeleke
- Department of Oral Pathology, Radiology and Medicine, 573932College of Dentistry, 50699The University of Iowa, Iowa City, IA, USA
| | - Azeez Alade
- Department of Oral Pathology, Radiology and Medicine, 573932College of Dentistry, 50699The University of Iowa, Iowa City, IA, USA
| | - Peter A Mossey
- Department of Orthodontics, University of Dundee, Dundee, UK
- Smile Train Global Medical Advisory Board, USA
| | - Waheed A Awotoye
- Department of Oral Pathology, Radiology and Medicine, 573932College of Dentistry, 50699The University of Iowa, Iowa City, IA, USA
| | - Tamara D Busch
- Department of Oral Pathology, Radiology and Medicine, 573932College of Dentistry, 50699The University of Iowa, Iowa City, IA, USA
| | - Mary Li
- Department of Oral Pathology, Radiology and Medicine, 573932College of Dentistry, 50699The University of Iowa, Iowa City, IA, USA
| | - Joy Olotu
- Department of Anatomy, 327041University of Port Harcourt, Rivers State, Nigeria
| | - Lord J J Gowans
- Department of Biochemistry and Biotechnology, 98763Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Colleen Aldous
- School of Clinical Medicine, University of KwaZulu-Natal, Durban, South Africa
| | - Azeez Butali
- Department of Oral Pathology, Radiology and Medicine, 573932College of Dentistry, 50699The University of Iowa, Iowa City, IA, USA
- Smile Train Research and Innovation Advisory Council, USA
| |
Collapse
|
6
|
Fashina A, Busch T, Young M, Adamson O, Awotoye W, Alade A, Adeleke C, Hassan M, Oladayo AM, Gowans LJJ, Eshete M, Naicker T, Olotu J, Adeyemo WL, Butali A. Investigating the relationship between cancer and orofacial clefts using GWAS significant loci for cancers: A case-control and case-triad study. Front Oral Health 2022; 3:915361. [PMID: 35990505 PMCID: PMC9388935 DOI: 10.3389/froh.2022.915361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 07/15/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundSeveral population-based case-control studies have reported concurrent presentation of cancer and congenital malformations. Many associations have been made between oral clefting and cancers, though some of these results are conflicting. Some studies have reported an increased risk of cancer among 1st-degree relatives of cleft cases and vice versa, and also an excess risk of cancers of the breast, lung, and brain among those with oral clefts. This study aimed to determine if the genetic polymorphisms found in some cancers are also associated with orofacial cleft in an African cohort.MethodsThe study was a case-control and case-triad study in which cases were 400 individuals clinically diagnosed with non-syndromic cleft lip and/or palate (CL/P), while controls were 450 individuals without CL/P. Samples were obtained from three African countries while DNA extraction, PCR, and genotyping were carried out at the University of Iowa, US. Eleven SNPs in genes coding for SWI/SNF subunits and 13 GWAS significant SNPs for cancers associated with orofacial cleft were selected. Case-control analysis, transmission disequilibrium test (TDT), and DFAM to combine the parent-offspring trio data and unrelated case/control data in a single analysis were carried out using PLINK.ResultsFor the case-control analyses that included all the clefts and for the CLP subtype, none of the SNPs were statistically significant. Statistically increased risk for the following SNPs rs34775372 (p = 0.02; OR = 1.54, CI:1.07–2.22), rs55658222 (p = 0.009; OR = 2.64, CI:1.28–5.45) and rs72728755 (p = 0.02; OR=2.27, CI:1.17–4.45) was observed with the CL only sub-group. None of these were significant after Bonferoni correction. In the TDT analyses, a significantly reduced risk with rs10941679 (p = 0.003; OR = 0.43, CI:0.24–0.75) was observed and this was significant after Bonferroni correction. The rs10941679 was also significant (p = 0.003) in the DFAM analyses as well even after Bonferroni correction.ConclusionThe results from this study represent an important starting point for understanding the concurrent presentation of some cancers in orofacial clefts, and cancer risks in cleft patients. The associations observed warrant further investigation in a larger cohort and will set the stage for a more mechanistic approach toward understanding the risk for cancers in families with clefts.
Collapse
Affiliation(s)
- Azeez Fashina
- Department of Oral and Maxillofacial Surgery, University of Lagos, Lagos, Nigeria
- *Correspondence: Azeez Fashina
| | - Tamara Busch
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, United States
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, IA, United States
| | - Mary Young
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, United States
| | - Olawale Adamson
- Department of Oral and Maxillofacial Surgery, University of Lagos, Lagos, Nigeria
| | - Waheed Awotoye
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, United States
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, IA, United States
| | - Azeez Alade
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, United States
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, IA, United States
| | - Chinyere Adeleke
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, United States
| | - Mohaned Hassan
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, United States
| | - Abimbola M. Oladayo
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, IA, United States
| | - Lord J. J. Gowans
- Komfo Anokye Teaching Hospital, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Mekonen Eshete
- Department of Surgery, School of Medicine, Addis Ababa University, Addis Ababa, Ethiopia
| | - Thirona Naicker
- School of Clinical Medicine, KwaZulu-Natal University, Durban, South Africa
| | - Joy Olotu
- Department of Anatomy, University of Port Harcourt, Port Harcourt, Nigeria
| | - Wasiu L. Adeyemo
- Department of Oral and Maxillofacial Surgery, University of Lagos, Lagos, Nigeria
| | - Azeez Butali
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, United States
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, IA, United States
| |
Collapse
|
7
|
Gowans LJJ, Comnick CL, Mossey PA, Eshete MA, Adeyemo WL, Naicker T, Awotoye WA, Petrin A, Adeleke C, Donkor P, Busch TD, James O, Ogunlewe MO, Li M, Olotu J, Hassan M, Adeniyan OA, Obiri-Yeboah S, Arthur FKN, Agbenorku P, Oti AA, Olatosi O, Adamson OO, Fashina AA, Zeng E, Marazita ML, Adeyemo AA, Murray JC, Butali A. Genome-Wide Scan for Parent-of-Origin Effects in a sub-Saharan African Cohort With Nonsyndromic Cleft Lip and/or Cleft Palate (CL/P). Cleft Palate Craniofac J 2022; 59:841-851. [PMID: 34382870 PMCID: PMC9884465 DOI: 10.1177/10556656211036316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
OBJECTIVE Nonsyndromic cleft lip and/or cleft palate (NSCL/P) have multifactorial etiology where genetic factors, gene-environment interactions, stochastic factors, gene-gene interactions, and parent-of-origin effects (POEs) play cardinal roles. POEs arise when the parental origin of alleles differentially impacts the phenotype of the offspring. The aim of this study was to identify POEs that can increase risk for NSCL/P in humans using a genome-wide dataset. METHODS The samples (174 case-parent trios from Ghana, Ethiopia, and Nigeria) included in this study were from the African only genome wide association studies (GWAS) that was published in 2019. Genotyping of individual DNA using over 2 million multiethnic and African ancestry-specific single-nucleotide polymorphisms from the Illumina Multi-Ethnic Genotyping Array v2 15070954 A2 (genome build GRCh37/hg19) was done at the Center for Inherited Diseases Research. After quality control checks, PLINK was employed to carry out POE analysis employing the pooled subphenotypes of NSCL/P. RESULTS We observed possible hints of POEs at a cluster of genes at a 1 mega base pair window at the major histocompatibility complex class 1 locus on chromosome 6, as well as at other loci encompassing candidate genes such as ASB18, ANKEF1, AGAP1, GABRD, HHAT, CCT7, DNMT3A, EPHA7, FOXO3, lncRNAs, microRNA, antisense RNAs, ZNRD1, ZFAT, and ZBTB16. CONCLUSION Findings from our study suggest that some loci may increase the risk for NSCL/P through POEs. Additional studies are required to confirm these suggestive loci in NSCL/P etiology.
Collapse
Affiliation(s)
- LJJ Gowans
- Department of Biochemistry and Biotechnology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana,School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana,Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa, IA, USA
| | - CL Comnick
- Division of Biostatistics and Computational Biology, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - PA Mossey
- Department of Orthodontics, University of Dundee, Dundee, UK
| | - MA Eshete
- Department of Surgery, School of Medicine, Addis Ababa University, Addis Ababa, Ethiopia
| | - WL Adeyemo
- Department of Oral and Maxillofacial Surgery, University of Lagos, Akoka, Lagos, Nigeria
| | - T Naicker
- Department of Pediatrics, University of KwaZulu-Natal and Inkosi Albert Luthuli Central Hospital, South Africa
| | - WA Awotoye
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa, IA, USA
| | - A Petrin
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa, IA, USA
| | - C Adeleke
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa, IA, USA
| | - P Donkor
- School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - TD Busch
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa, IA, USA
| | - O James
- Department of Oral and Maxillofacial Surgery, University of Lagos, Akoka, Lagos, Nigeria
| | - MO Ogunlewe
- Department of Oral and Maxillofacial Surgery, University of Lagos, Akoka, Lagos, Nigeria
| | - M Li
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa, IA, USA
| | - J Olotu
- Department of Anatomy, University of Port Harcourt, Nigeria
| | - M Hassan
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa, IA, USA
| | - OA Adeniyan
- NHS Foundation Trust (Queens Hospital, Belvedere Road, Burton-On-Trent), Staffordshire, UK
| | - S Obiri-Yeboah
- School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - FKN Arthur
- Department of Biochemistry and Biotechnology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - P Agbenorku
- School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - AA Oti
- School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - O Olatosi
- Center for Craniofacial and Dental Genetics, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - OO Adamson
- Department of Oral and Maxillofacial Surgery, University of Lagos, Akoka, Lagos, Nigeria
| | - AA Fashina
- Department of Oral and Maxillofacial Surgery, University of Lagos, Akoka, Lagos, Nigeria
| | - E Zeng
- Division of Biostatistics and Computational Biology, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - ML Marazita
- Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA,Clinical and Translational Science Institute, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - AA Adeyemo
- Center for Research on Genomics and Global Health, National Human Genome Research Institute, Bethesda, MD, USA
| | - JC Murray
- Department of Pediatrics, University of Iowa, Iowa, IA, USA
| | - A Butali
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa, IA, USA
| |
Collapse
|
8
|
Awotoye W, Comnick C, Pendleton C, Zeng E, Alade A, Mossey PA, Gowans LJJ, Eshete MA, Adeyemo WL, Naicker T, Adeleke C, Busch T, Li M, Petrin A, Olotu J, Hassan M, Pape J, Miller SE, Donkor P, Anand D, Lachke SA, Marazita ML, Adeyemo AA, Murray JC, Albokhari D, Sobreira N, Butali A. Genome-wide Gene-by-Sex Interaction Studies Identify Novel Nonsyndromic Orofacial Clefts Risk Locus. J Dent Res 2021; 101:465-472. [PMID: 34689653 DOI: 10.1177/00220345211046614] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Risk loci identified through genome-wide association studies have explained about 25% of the phenotypic variations in nonsyndromic orofacial clefts (nsOFCs) on the liability scale. Despite the notable sex differences in the incidences of the different cleft types, investigation of loci for sex-specific effects has been understudied. To explore the sex-specific effects in genetic etiology of nsOFCs, we conducted a genome-wide gene × sex (GxSex) interaction study in a sub-Saharan African orofacial cleft cohort. The sample included 1,019 nonsyndromic orofacial cleft cases (814 cleft lip with or without cleft palate and 205 cleft palate only) and 2,159 controls recruited from 3 sites (Ethiopia, Ghana, and Nigeria). An additive logistic model was used to examine the joint effects of the genotype and GxSex interaction. Furthermore, we examined loci with suggestive significance (P < 1E-5) in the additive model for the effect of the GxSex interaction only. We identified a novel risk locus on chromosome 8p22 with genome-wide significant joint and GxSex interaction effects (rs2720555, p2df = 1.16E-08, pGxSex = 1.49E-09, odds ratio [OR] = 0.44, 95% CI = 0.34 to 0.57). For males, the risk of cleft lip with or without cleft palate at this locus decreases with additional copies of the minor allele (p < 0.0001, OR = 0.60, 95% CI = 0.48 to 0.74), but the effect is reversed for females (p = 0.0004, OR = 1.36, 95% CI = 1.15 to 1.60). We replicated the female-specific effect of this locus in an independent cohort (p = 0.037, OR = 1.30, 95% CI = 1.02 to 1.65), but no significant effect was found for the males (p = 0.29, OR = 0.86, 95% CI = 0.65 to 1.14). This locus is in topologically associating domain with craniofacially expressed and enriched genes during embryonic development. Rare coding mutations of some of these genes were identified in nsOFC cohorts through whole exome sequencing analysis. Our study is additional proof that genome-wide GxSex interaction analysis provides an opportunity for novel findings of loci and genes that contribute to the risk of nsOFCs.
Collapse
Affiliation(s)
- W Awotoye
- Iowa Institute for Oral Health Research, University of Iowa, Iowa City, IA, USA
| | - C Comnick
- Division of Biostatistics and Computational Biology, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - C Pendleton
- Division of Biostatistics and Computational Biology, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - E Zeng
- Division of Biostatistics and Computational Biology, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - A Alade
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA.,Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, IA, USA
| | - P A Mossey
- Department of Orthodontics, University of Dundee, Dundee, UK
| | - L J J Gowans
- Komfo Anokye Teaching Hospital and Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - M A Eshete
- Department of Surgery, School of Medicine, Addis Ababa University, Addis Ababa, Ethiopia
| | - W L Adeyemo
- Department of Oral and Maxillofacial Surgery, University of Lagos, Lagos, Nigeria
| | - T Naicker
- Department of Pediatrics, University of KwaZulu-Natal, Durban, South Africa
| | - C Adeleke
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - T Busch
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - M Li
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - A Petrin
- Iowa Institute for Oral Health Research, University of Iowa, Iowa City, IA, USA
| | - J Olotu
- Department of Anatomy, University of Port Harcourt, Choba, Nigeria
| | - M Hassan
- Department of Orthodontics, University of Dundee, Dundee, UK
| | - J Pape
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - S E Miller
- Iowa Institute for Oral Health Research, University of Iowa, Iowa City, IA, USA
| | - P Donkor
- Department of Orthodontics, University of Dundee, Dundee, UK
| | - D Anand
- Department of Biological Sciences, University of Delaware, Newark, DE, USA
| | - S A Lachke
- Department of Biological Sciences, University of Delaware, Newark, DE, USA.,Center for Bioinformatics and Computational Biology, University of Delaware, Newark, DE, USA
| | - M L Marazita
- Center for Craniofacial and Dental Genetics, Departments of Oral Biology and Human Genetics, University of Pittsburgh, Pittsburgh, PA, USA
| | - A A Adeyemo
- National Human Genomic Research Institute, Bethesda, MD, USA
| | - J C Murray
- Department of Pediatrics, University of Iowa, Iowa City, IA, USA
| | - D Albokhari
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - N Sobreira
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - A Butali
- Iowa Institute for Oral Health Research, University of Iowa, Iowa City, IA, USA.,Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| |
Collapse
|
9
|
Olatosi OO, Li M, Alade AA, Oyapero A, Busch T, Pape J, Olotu J, Awotoye W, Hassan M, Adeleke C, Adeyemo WL, Sote EO, Shaffer JR, Marazita M, Butali A. Replication of GWAS significant loci in a sub-Saharan African Cohort with early childhood caries: a pilot study. BMC Oral Health 2021; 21:274. [PMID: 34016088 PMCID: PMC8139096 DOI: 10.1186/s12903-021-01623-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 04/27/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Early childhood caries (ECC) is a rapidly progressing form of dental infection and a significant public health problem, especially among socially and economically disadvantaged populations. This study aimed to assess the risk factors for ECC among a cohort of Sub-Saharan African children and to determine the role of genetics in the etiology of ECC. METHODS A sample of 691 children (338 with ECC, 353 without ECC, age < 6 years) was recruited from schools in Lagos, Nigeria. Socio-demographic, dental services utilization and infant dietary data were obtained with interviewer-administered questionnaire. Oral examination was conducted using the WHO oral health diagnostic criteria. Saliva samples were collected from the children for genetic analysis. Single nucleotide polymorphisms were selected from previous study for genotyping. Genetic association analyses to investigate the role of genetics in the etiology of ECC was done. Bivariate comparisons and Multivariate logistic regression analyses were conducted to assess associations between ECC and predictor variables, p < 0.05. RESULTS Of the 338 children with ECC, 64 (18.9%) had Severe-Early Childhood Caries (S-ECC). Children aged 48-59 months comprised the highest proportion of subjects with ECC (165; 48.8%) and S-ECC (24; 37.5%) while female subjects had higher dt (3.13 ± 2.56) and dmft values 3.27 ± 2.64. ECC was significantly more prevalent among children who were breastfed at night ≥ 12 months (OR 3.30; CI 0.39, 4.75), those with no previous dental visit (OR 1.71; CI 0.24, 2.77), those who used sweetened pacifiers (OR 1.85; CI 0.91, 3.79) and those who daily consumed sugar-sweetened drinks/snacks (OR 1.35; CI 0.09, 18.51). A suggestive increased risk for ECC (OR 1.26, p = 0. 0.0397) was observed for the genetic variant rs11239282 on chromosome 10. We also observed a suggestive reduced risk for ECC (OR 0.80, p = 0.03) for the rs131777 on chromosome 22. None of the genetic variants were significant after correction for multiple testing (Bonferroni p value p = 0.004). CONCLUSIONS Prolonged night-time breastfeeding, poor utilization of dental services and daily consumption of sugar were risk factors for ECC. Larger sample size is needed to confirm the results of the genetic analysis and to conduct genome wide studies in order to discover new risk loci for ECC.
Collapse
Affiliation(s)
- Olubukola O Olatosi
- Department of Child Dental Health, Faculty of Dental Sciences, College of Medicine, University of Lagos, Lagos, Nigeria.
| | - Mary Li
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City , USA
| | - Azeez A Alade
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City , USA
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, IA, USA
- Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, IA, USA
| | - Afolabi Oyapero
- Department of Preventive Dentistry, Faculty of Dentistry, Lagos State University College of Medicine, Lagos, Nigeria
| | - Tamara Busch
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, IA, USA
| | - John Pape
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, IA, USA
| | - Joy Olotu
- Department of Anatomy, University of Port Harcourt, Port Harcourt, Nigeria
| | - Waheed Awotoye
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City , USA
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, IA, USA
| | - Mohaned Hassan
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, IA, USA
| | - Chinyere Adeleke
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, IA, USA
| | - Wasiu L Adeyemo
- Department of Oral and Maxillofacial Surgery, University of Lagos, Lagos, Nigeria
| | - Elizabeth O Sote
- Department of Child Dental Health, Faculty of Dental Sciences, College of Medicine, University of Lagos, Lagos, Nigeria
| | - John R Shaffer
- Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Oral and Craniofacial Sciences, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Mary Marazita
- Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Oral and Craniofacial Sciences, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Azeez Butali
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City , USA
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, IA, USA
| |
Collapse
|
10
|
Awotoye W, Li M, Olotu J, Buxo‐Martinez C, Mossey P, Anand D, Busch T, Alade A, Gowans L, Eshete M, Adeyemo W, Naicker T, Adeleke C, Bravo V, Huang S, Adamson O, Toraño A, Bello C, Soto M, Soto M, Ledesma R, Marquez M, Cordero J, Lopez‐Del Valle L, Salcedo M, Debs N, Petrin A, Malloy H, Elhadi K, Olutayo J, Ogunlewe M, Abate F, Hailu T, Mohammed I, Gravem P, Deribew M, Gesses M, Hassan M, Pape J, Obiri‐Yeboah S, Arthur F, Oti A, Donkor P, Marazita M, Lachke S, Adeyemo A, Murray J, Butali A. Variant Analyses of Candidate Genes in Orofacial Clefts in Multi‐Ethnic Populations. FASEB J 2021. [DOI: 10.1096/fasebj.2021.35.s1.03614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Waheed Awotoye
- Iowa Institute of Oral Health ResearchUniversity of IowaIowaIA
| | - Mary Li
- Department of Oral Pathology, Radiology and MedicineUniversity of IowaIowaIA
| | - Joy Olotu
- Department of AnatomyUniversity of Port HarcourtPort Harcourt
| | | | - Peter Mossey
- Department of OrthodonticsUniversity of DundeeDundee
| | - Deepti Anand
- Department of Biological SciencesUniversity of DelawareNewarkDE
| | - Tamara Busch
- Department of Oral Pathology, Radiology and MedicineUniversity of IowaIowaIA
| | - Azeez Alade
- Department of EpidemiologyCollege of Public HealthUniversity of IowaIowaIA
- 3Department of Oral Pathology, Radiology and MedicineUniversity of IowaIowaIA
| | - Lord Gowans
- Department of Biochemistry and BiotechnologyKwame Nkrumah University of Science and TechnologyKumasi
| | - Mekonen Eshete
- Surgical DepartmentAddis Ababa University, School MedicineAddis Ababa
| | - Wasiu Adeyemo
- Oral and Maxillofacial SurgeryUniversity of LagosIdiaraba
| | - Thirona Naicker
- Department of PediatricsUniversity of KwaZulu‐NatalSouth Africa
| | - Chinyere Adeleke
- Department of Oral Pathology, Radiology and MedicineUniversity of IowaIowaIA
| | - Valeria Bravo
- School of Dental MedicineUniversity of Puerto RicoPuero Rico
| | - Siyong Huang
- Department of Oral Pathology, Radiology and MedicineUniversity of IowaIowaIA
| | | | | | | | - Mairim Soto
- School of Dental MedicineUniversity of Puerto RicoPuero Rico
| | - Marilyn Soto
- School of Dental MedicineUniversity of Puerto RicoPuero Rico
| | - Ricardo Ledesma
- School of Dental MedicineUniversity of Puerto RicoPuero Rico
| | | | - Jose Cordero
- School of Dental MedicineUniversity of Puerto RicoPuero Rico
| | | | - Maria Salcedo
- School of Dental MedicineUniversity of Puerto RicoPuero Rico
| | - Natalio Debs
- School of Dental MedicineUniversity of Puerto RicoPuero Rico
| | - Aline Petrin
- Iowa Institute of Oral Health ResearchUniversity of IowaIowaIA
| | - Hannah Malloy
- Department of Oral Pathology, Radiology and MedicineUniversity of IowaIowaIA
| | - Khalid Elhadi
- Department of Oral Pathology, Radiology and MedicineUniversity of IowaIowaIA
| | - James Olutayo
- Oral and Maxillofacial SurgeryUniversity of LagosIdiaraba
| | | | - Fekir Abate
- Surgical DepartmentAddis Ababa University, School MedicineAddis Ababa
| | - Taye Hailu
- Surgical DepartmentAddis Ababa University, School MedicineAddis Ababa
| | - Ibrahim Mohammed
- Surgical DepartmentAddis Ababa University, School MedicineAddis Ababa
| | - Paul Gravem
- Surgical DepartmentAddis Ababa University, School MedicineAddis Ababa
| | - Milliard Deribew
- Surgical DepartmentAddis Ababa University, School MedicineAddis Ababa
| | - Mulualem Gesses
- Surgical DepartmentAddis Ababa University, School MedicineAddis Ababa
| | - Mohaned Hassan
- Department of Oral Pathology, Radiology and MedicineUniversity of IowaIowaIA
| | - John Pape
- Department of Oral Pathology, Radiology and MedicineUniversity of IowaIowaIA
| | - Solomon Obiri‐Yeboah
- Department of Biochemistry and BiotechnologyKwame Nkrumah University of Science and TechnologyKumasi
| | - Fareed Arthur
- Department of Biochemistry and BiotechnologyKwame Nkrumah University of Science and TechnologyKumasi
| | - Alexander Oti
- Department of Biochemistry and BiotechnologyKwame Nkrumah University of Science and TechnologyKumasi
| | - Peter Donkor
- Department of Biochemistry and BiotechnologyKwame Nkrumah University of Science and TechnologyKumasi
| | - Mary Marazita
- Department of Oral Biology and Human GeneticsUniversity of PittsburghPittsburghPA
| | - Salil Lachke
- Department of Biological SciencesUniversity of DelawareNewarkDE
| | | | | | - Azeez Butali
- Department of Oral Pathology, Radiology and MedicineUniversity of IowaIowaIA
| |
Collapse
|
11
|
Olatosi OO, Alade AA, Naicker T, Busch T, Oyapero A, Li M, Pape J, Olotu J, Awotoye W, Hassan M, Adeleke C, Adeyemo WL, Shaffer J, Marazita ML, Butali A. Dental Caries Severity and Nutritional Status of Nigerian Preschool Children. JDR Clin Trans Res 2021; 7:154-162. [PMID: 33764218 DOI: 10.1177/23800844211002108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
INTRODUCTION Malnutrition in children is one of the most prevalent global health challenges, and malnourished children have a higher risk of death from childhood diseases. Early childhood caries (ECC) is the most common chronic disease of childhood. Complications from ECC such as pain, loss of tooth/teeth, and infection can undermine a child's nutrition and growth. AIM This study aims to evaluate the severity of decay, missing, and filled tooth (dmft) by nutritional status using the z scores of the anthropometric measurements: height for age (HFA), weight for age (WFA), weight for height (WFH), and body mass index for age (BMIA) among children with ECC in Nigeria. STUDY DESIGN This is a cross-sectional study conducted in 5 local government areas (LGAs) in Lagos State, Nigeria. A multistage sampling technique was used. RESULTS A total of 273 cases of ECC were included in the analyses (mean age 4.19 ± 0.96 y). Overall, the mean dmft was 3.04 ± 2.28, and most (96%) were accounted for by untreated decay. The distribution of dmft within the different z score categories of BMIA (<-3 = severely wasted, -2 to -3 = wasted, -2 to +2 = normal, +2 to +3 = overweight and >+3 = obese) showed the highest dmft scores among the combined severely wasted and wasted groups, lowest among children with normal z scores, and intermediate in the overweight and obese groups. There was a significant negative correlation between BMIA z score, WFH z score, and dmft (r = -0.181, P < 0.05 and r = -0.143, P < 0.05, respectively). However, the correlations between HFA z score, WFA z score, and dmft were positive but not significant (r = 0.048, P = 0.44 and r = 0.022, P = 0.77, respectively). CONCLUSION Our study showed an increased severity of dental caries among severely wasted or wasted children with ECC compared to those of normal or overweight. KNOWLEDGE TRANSFER STATEMENT The results from this study will raise awareness among clinicians and policy makers on the need for a primary prevention program for early childhood caries in countries with high burden of malnutrition and limited resources. Also, it will help draw the attention of clinicians to the caries status of malnourished children that can be managed to improve the nutritional outcomes.
Collapse
Affiliation(s)
- O O Olatosi
- Department of Child Dental Health, Faculty of Dental Sciences, College of Medicine University of Lagos, Lagos, Nigeria
| | - A A Alade
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA.,Iowa Institute of Oral Health Research, University of Iowa, Iowa City, IA, USA.,Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, IA, USA
| | - T Naicker
- Department of Paediatrics, University of KwaZulu-Natal, Durban, South Africa
| | - T Busch
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, IA, USA
| | - A Oyapero
- Department of Preventive Dentistry, Faculty of Dentistry, Lagos State University College of Medicine, Lagos, Nigeria
| | - M Li
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, IA, USA
| | - J Pape
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, IA, USA
| | - J Olotu
- Department of Anatomy, University of Port Harcourt, Port Harcourt, Nigeria
| | - W Awotoye
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA.,Iowa Institute of Oral Health Research, University of Iowa, Iowa City, IA, USA
| | - M Hassan
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, IA, USA
| | - C Adeleke
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, IA, USA
| | - W L Adeyemo
- Department of Oral and Maxillofacial Surgery, University of Lagos, Lagos, Nigeria
| | - J Shaffer
- Center for Craniofacial and Dental Genetics, Department of Oral Biology, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA, USA.,Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - M L Marazita
- Center for Craniofacial and Dental Genetics, Department of Oral Biology, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA, USA.,Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - A Butali
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA.,Iowa Institute of Oral Health Research, University of Iowa, Iowa City, IA, USA
| |
Collapse
|
12
|
Alade AA, Buxo‐Martinez CJ, Mossey PA, Gowans LJ, Eshete MA, Adeyemo WL, Naicker T, Awotoye WA, Adeleke C, Busch T, Toraño AM, Bello CA, Soto M, Soto M, Ledesma R, Marquez M, Cordero JF, Lopez‐Del Valle LM, Salcedo MI, Debs N, Li M, Petrin A, Olotu J, Aldous C, Olutayo J, Ogunlewe MO, Abate F, Hailu T, Muhammed I, Gravem P, Deribew M, Gesses M, Hassan M, Pape J, Adeniyan OA, Obiri‐Yeboah S, Arthur FK, Oti AA, Olatosi O, Miller SE, Donkor P, Dunnwald MM, Marazita ML, Adeyemo AA, Murray JC, Butali A. Non-random distribution of deleterious mutations in the DNA and protein-binding domains of IRF6 are associated with Van Der Woude syndrome. Mol Genet Genomic Med 2020; 8:e1355. [PMID: 32558391 PMCID: PMC7434609 DOI: 10.1002/mgg3.1355] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 05/03/2020] [Accepted: 05/19/2020] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND The development of the face occurs during the early days of intrauterine life by the formation of facial processes from the first Pharyngeal arch. Derangement in these well-organized fusion events results in Orofacial clefts (OFC). Van der Woude syndrome (VWS) is one of the most common causes of syndromic cleft lip and/or palate accounting for 2% of all cases. Mutations in the IRF6 gene account for 70% of cases with the majority of these mutations located in the DNA-binding (exon 3, 4) or protein-binding domains (exon 7-9). The current study was designed to update the list of IRF6 variants reported for VWS by compiling all the published mutations from 2013 to date as well as including the previously unreported VWS cases from Africa and Puerto Rico. METHODS We used PubMed with the search terms; "Van der Woude syndrome," "Popliteal pterygium syndrome," "IRF6," and "Orofacial cleft" to identify eligible studies. We compiled the CADD score for all the mutations to determine the percentage of deleterious variants. RESULTS Twenty-one new mutations were identified from nine papers. The majority of these mutations were in exon 4. Mutations in exon 3 and 4 had CADD scores between 20 and 30 and mutations in exon 7-9 had CADD scores between 30 and 40. The presence of higher CADD scores in the protein-binding domain (exon 7-9) further confirms the crucial role played by this domain in the function of IRF6. In the new cases, we identified five IRF6 mutations, three novel missense mutations (p.Phe36Tyr, p.Lys109Thr, and p.Gln438Leu), and two previously reported nonsense mutations (p.Ser424*and p.Arg250*). CONCLUSION Mutations in the protein and DNA-binding domains of IRF6 ranked among the top 0.1% and 1% most deleterious genetic mutations, respectively. Overall, these findings expand the range of VWS mutations and are important for diagnostic and counseling purposes.
Collapse
Affiliation(s)
- Azeez A. Alade
- Department of Oral Pathology, Radiology and MedicineCollege of DentistryUniversity of IowaIowa CityIAUSA
- Iowa Institute of Oral Health ResearchUniversity of IowaIowa CityIAUSA
- Department of EpidemiologyCollege of Public HealthUniversity of IowaIowa CityIAUSA
| | - Carmen J. Buxo‐Martinez
- Dental and Craniofacial Genomics CoreUniversity of Puerto Rico School of Dental MedicineSan JuanPuerto Rico
| | - Peter A. Mossey
- Department of OrthodonticsUniversity of DundeeDundeeUnited Kingdom
| | - Lord J.J. Gowans
- Komfo Anokye Teaching Hospital and Kwame Nkrumah University of Science and TechnologyKumasiGhana
| | | | - Wasiu L. Adeyemo
- Department of Oral and Maxillofacial SurgeryUniversity of LagosLagosNigeria
| | - Thirona Naicker
- School of clinical medicineKwaZulu‐Natal UniversityDurbanSouth Africa
| | - Waheed A. Awotoye
- Department of Oral Pathology, Radiology and MedicineCollege of DentistryUniversity of IowaIowa CityIAUSA
- Iowa Institute of Oral Health ResearchUniversity of IowaIowa CityIAUSA
| | - Chinyere Adeleke
- Department of Oral Pathology, Radiology and MedicineCollege of DentistryUniversity of IowaIowa CityIAUSA
| | - Tamara Busch
- Department of Oral Pathology, Radiology and MedicineCollege of DentistryUniversity of IowaIowa CityIAUSA
- Iowa Institute of Oral Health ResearchUniversity of IowaIowa CityIAUSA
| | - Ada M. Toraño
- Dental and Craniofacial Genomics CoreUniversity of Puerto Rico School of Dental MedicineSan JuanPuerto Rico
| | - Carolina A. Bello
- Dental and Craniofacial Genomics CoreUniversity of Puerto Rico School of Dental MedicineSan JuanPuerto Rico
| | - Mairim Soto
- Dental and Craniofacial Genomics CoreUniversity of Puerto Rico School of Dental MedicineSan JuanPuerto Rico
| | - Marilyn Soto
- Dental and Craniofacial Genomics CoreUniversity of Puerto Rico School of Dental MedicineSan JuanPuerto Rico
| | - Ricardo Ledesma
- Dental and Craniofacial Genomics CoreUniversity of Puerto Rico School of Dental MedicineSan JuanPuerto Rico
| | - Myrellis Marquez
- Dental and Craniofacial Genomics CoreUniversity of Puerto Rico School of Dental MedicineSan JuanPuerto Rico
| | - Jose F. Cordero
- Dental and Craniofacial Genomics CoreUniversity of Puerto Rico School of Dental MedicineSan JuanPuerto Rico
| | - Lydia M. Lopez‐Del Valle
- Dental and Craniofacial Genomics CoreUniversity of Puerto Rico School of Dental MedicineSan JuanPuerto Rico
| | - Maria I. Salcedo
- Dental and Craniofacial Genomics CoreUniversity of Puerto Rico School of Dental MedicineSan JuanPuerto Rico
| | - Natalio Debs
- Dental and Craniofacial Genomics CoreUniversity of Puerto Rico School of Dental MedicineSan JuanPuerto Rico
| | - Mary Li
- Department of Oral Pathology, Radiology and MedicineCollege of DentistryUniversity of IowaIowa CityIAUSA
- Iowa Institute of Oral Health ResearchUniversity of IowaIowa CityIAUSA
| | - Aline Petrin
- Iowa Institute of Oral Health ResearchUniversity of IowaIowa CityIAUSA
| | - Joy Olotu
- Department of AnatomyUniversity of Port HarcourtPort HarcourtNigeria
| | - Colleen Aldous
- School of clinical medicineKwaZulu‐Natal UniversityDurbanSouth Africa
| | - James Olutayo
- Department of Oral and Maxillofacial SurgeryUniversity of LagosLagosNigeria
| | - Modupe O. Ogunlewe
- Department of Oral and Maxillofacial SurgeryUniversity of LagosLagosNigeria
| | - Fekir Abate
- School of Public HealthAddis Ababa UniversityAddis AbabaEthiopia
| | - Taye Hailu
- School of Public HealthAddis Ababa UniversityAddis AbabaEthiopia
| | - Ibrahim Muhammed
- School of Public HealthAddis Ababa UniversityAddis AbabaEthiopia
| | - Paul Gravem
- School of Public HealthAddis Ababa UniversityAddis AbabaEthiopia
| | - Milliard Deribew
- School of Public HealthAddis Ababa UniversityAddis AbabaEthiopia
| | - Mulualem Gesses
- School of Public HealthAddis Ababa UniversityAddis AbabaEthiopia
| | - Mohaned Hassan
- Department of Oral Pathology, Radiology and MedicineCollege of DentistryUniversity of IowaIowa CityIAUSA
- Iowa Institute of Oral Health ResearchUniversity of IowaIowa CityIAUSA
| | - John Pape
- Department of Oral Pathology, Radiology and MedicineCollege of DentistryUniversity of IowaIowa CityIAUSA
| | - Oluwole A. Adeniyan
- NHS Foundation Trust, (Queens Hospital, Burton‐On‐Trent)StaffordshireUnited Kingdom
| | - Solomon Obiri‐Yeboah
- Komfo Anokye Teaching Hospital and Kwame Nkrumah University of Science and TechnologyKumasiGhana
| | - Fareed K.N. Arthur
- Komfo Anokye Teaching Hospital and Kwame Nkrumah University of Science and TechnologyKumasiGhana
| | - Alexander A. Oti
- Komfo Anokye Teaching Hospital and Kwame Nkrumah University of Science and TechnologyKumasiGhana
| | | | - Sara E. Miller
- Iowa Institute of Oral Health ResearchUniversity of IowaIowa CityIAUSA
| | - Peter Donkor
- Komfo Anokye Teaching Hospital and Kwame Nkrumah University of Science and TechnologyKumasiGhana
| | | | - Mary L. Marazita
- Oral BiologyHuman GeneticsUniversity of PittsburghPittsburghPAUSA
| | | | | | - Azeez Butali
- Department of Oral Pathology, Radiology and MedicineCollege of DentistryUniversity of IowaIowa CityIAUSA
- Iowa Institute of Oral Health ResearchUniversity of IowaIowa CityIAUSA
| |
Collapse
|