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Li J, Feng D, He S, Yang H, Su Z, Ye H. Association of MTHFR 677C > T gene polymorphism with neonatal defects: a meta-analysis of 81444 subjects. J OBSTET GYNAECOL 2022; 42:1811-1822. [PMID: 35282788 DOI: 10.1080/01443615.2022.2039908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Juan Li
- Department of Clinical Laboratory, Women and Children’s Hospital, School of Medicine, Xiamen University, Xiamen, China
| | - Danqin Feng
- Department of Clinical Laboratory, Women and Children’s Hospital, School of Medicine, Xiamen University, Xiamen, China
| | - Shiwei He
- School of Public Health, Xiamen University, Xiamen, China
| | - Hua Yang
- Department of Obstetrics, Women and Children’s Hospital, School of Medicine, Xiamen University, Xiamen, China
| | - Zhiying Su
- Women and Children’s Hospital, School of Medicine, Xiamen University, Xiamen, China
| | - Huiming Ye
- Department of Clinical Laboratory, Women and Children’s Hospital, School of Medicine, and Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, China
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2
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Auerkari EI, Bilynov Y, Yuniastuti M, Listyowati L, Sulistyani LD. Association of a Polymorphism in the Gene Encoding Methylenetetrahydrofolate Dehydrogenase 1 (MTHFD1) 1958G>A with Orofacial Cleft. PESQUISA BRASILEIRA EM ODONTOPEDIATRIA E CLÍNICA INTEGRADA 2021. [DOI: 10.1590/pboci.2021.048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Martinelli M, Palmieri A, Carinci F, Scapoli L. Non-syndromic Cleft Palate: An Overview on Human Genetic and Environmental Risk Factors. Front Cell Dev Biol 2020; 8:592271. [PMID: 33195260 PMCID: PMC7606870 DOI: 10.3389/fcell.2020.592271] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 09/28/2020] [Indexed: 12/27/2022] Open
Abstract
The epithelial and mesenchymal cells involved in early embryonic facial development are guided by complex regulatory mechanisms. Any factor perturbing the growth, approach and fusion of the frontonasal and maxillary processes could result in orofacial clefts that represent the most common craniofacial malformations in humans. The rarest and, probably for this reason, the least studied form of cleft involves only the secondary palate, which is posterior to the incisive foramen. The etiology of cleft palate only is multifactorial and involves both genetic and environmental risk factors. The intention of this review is to give the reader an overview of the efforts made by researchers to shed light on the underlying causes of this birth defect. Most of the scientific papers suggesting potential environmental and genetic causes of non-syndromic cleft palate are summarized in this review, including genome-wide association and gene–environment interaction studies.
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Affiliation(s)
- Marcella Martinelli
- Department of Experimental, Diagnostic and Specialty Medicine, Alma Mater Studiorum - University of Bologna, Bologna, Italy
| | - Annalisa Palmieri
- Department of Experimental, Diagnostic and Specialty Medicine, Alma Mater Studiorum - University of Bologna, Bologna, Italy
| | - Francesco Carinci
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - Luca Scapoli
- Department of Experimental, Diagnostic and Specialty Medicine, Alma Mater Studiorum - University of Bologna, Bologna, Italy
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Komiyama Y, Koshiji C, Yoshida W, Natsume N, Kawamata H. 5,10-Methylenetetrahydrofolate reductase ( MTHFR) C677T/A1298C polymorphisms in patients with nonsyndromic cleft lip and palate. Biomed Rep 2020; 13:57. [PMID: 33123371 PMCID: PMC7583695 DOI: 10.3892/br.2020.1364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Accepted: 09/21/2020] [Indexed: 11/06/2022] Open
Abstract
Cleft lip with or without cleft palate (CL/P) is considered a multifactorial genetic disorder. Folic acid metabolism has been suggested to underlie the development of CL/P. The gene for the enzyme 5,10-methylentetrahydrofolate reductase (MTHFR) contributes to folic acid metabolism, and polymorphisms of this gene at C677T (rs1801133) and A1298C (rs1801131) are reported to alter its enzyme activity and are suggested to be involved in CL/P development. We investigated C677T and A1298C polymorphisms of the MTHFR gene in Japanese patients with nonsyndromic CL/P and cleft palate only (CPO). We examined 240 patients with CL/P, 103 fathers and 153 mothers of the patients, and 68 healthy controls. Restriction fragment length polymorphisms (RFLPs) of C677T and A1298C of MTHFR were analyzed. We determined the frequencies of the polymorphisms in the patients and controls and performed a transmission equilibrium test and haplotype analysis of both MTHFR C677T and A1298C. There were no significant differences in the frequencies of MTHFR C677T and A1298C polymorphisms between the patients and controls. We did not observe transmission equilibrium or linkage equilibrium among the cases. In this experimental condition, we did not detect an association of MTHFR C677T and/or A1298C polymorphisms with the development of CL/P in this Japanese cohort.
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Affiliation(s)
- Yuske Komiyama
- Department of Oral and Maxillofacial Surgery, Dokkyo Medical University School of Medicine, Mibu, Tochigi 321-0293, Japan
| | - Chikako Koshiji
- Department of Oral and Maxillofacial Surgery, Dokkyo Medical University School of Medicine, Mibu, Tochigi 321-0293, Japan
| | - Waka Yoshida
- Department of Oral Pathology, School of Dentistry, Aichi-Gakuin University, Nagoya, Aichi 464-8650, Japan
| | - Nagato Natsume
- Division of Research and Treatment for Oral and Maxillofacial Congenital Anomalies, School of Dentistry, Aichi-Gakuin University, Nagoya, Aichi 464-8650, Japan
| | - Hitoshi Kawamata
- Department of Oral and Maxillofacial Surgery, Dokkyo Medical University School of Medicine, Mibu, Tochigi 321-0293, Japan
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Imani MM, Rezaei F, Mire H, Delavarian M, Sadeghi M, Safaei M, Mozaffari HR. A meta-analysis and meta-regression of association between MTHFR A1298C polymorphism and nonsyndromic cleft lip/palate risk: An evaluation based on five genetic models. Int Orthod 2020; 18:191-202. [PMID: 32146124 DOI: 10.1016/j.ortho.2020.01.012] [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: 12/03/2019] [Revised: 01/29/2020] [Accepted: 01/30/2020] [Indexed: 01/26/2023]
Abstract
OBJECTIVE The present meta-analysis is intended to assess the association between NSCL/P risk and methylenetetrahydrofolate reductase (MTHFR) A1298C polymorphism in case-control studies. MATERIALS AND METHODS The Web of Science, PubMed/Medline, Scopus, and Cochrane Library databases were searched for related articles published by April 2019. Review Manager 5.3 was applied to measure the odds ratios (ORs) with 95% confidence interval (CI) in the analyses assessing the strength of the association between A1298C polymorphism and NSCL/P risk. Results Sixteen studies were involved and analysed in this meta-analysis. Altogether, the reviewed articles included 2677 NSCL/P patients and 3669 controls. The pooled ORs of the allele, homozygote, heterozygote, dominant, and recessive models were 1.11 (95% CI: 0.94, 1.30; P=0.21), 1.14 (95% CI: 0.94, 1.37; P=0.18), 0.98 (95% CI: 0.80, 1.20; P=0.87), 1.03 (95% CI: 0.86, 1.22; P=0.79), and 1.18 (95% CI: 0.99, 1.41; P=0.07), respectively. The analysis did not identify any significant association between the polymorphism and the risk of NSCL/P in any ethnicity or source of controls. CONCLUSIONS This meta-analysis revealed that A1298C polymorphism is not associated with NSCL/P susceptibility, and the subgroup analyses based on ethnicity and the source of cases further confirmed this result.
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Affiliation(s)
- Mohammad Moslem Imani
- Kermanshah University of Medical Sciences, School of Dentistry, Department of Orthodontics, Kermanshah, Iran
| | - Farzad Rezaei
- Kermanshah University of Medical Sciences, School of Dentistry, Department of Oral and Maxillofacial Surgery, Kermanshah, Iran
| | - Hosna Mire
- Kermanshah University of Medical Sciences, Students Research Committee, Kermanshah, Iran
| | | | - Masoud Sadeghi
- Kermanshah University of Medical Sciences, Medical Biology Research Center, Kermanshah, Iran.
| | - Mohsen Safaei
- Kermanshah University of Medical Sciences, School of Dentistry, Advanced Dental Sciences Research Laboratory, Kermanshah, Iran
| | - Hamid Reza Mozaffari
- Kermanshah University of Medical Sciences, Department of Oral and Maxillofacial Medicine, Kermanshah, Iran; Kermanshah University of Medical Sciences, Medical Biology Research Center, Kermanshah, Iran
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6
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Imani MM, Golchin N, Safaei M, Rezaei F, Abbasi H, Sadeghi M, Lopez-Jornet P, Mozaffari HR, Sharifi R. Methylenetetrahydrofolate reductase C677T polymorphism is not associated with the risk of nonsyndromic cleft lip/palate: An updated meta-analysis. Sci Rep 2020; 10:1531. [PMID: 32001764 PMCID: PMC6992667 DOI: 10.1038/s41598-020-58357-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 12/18/2019] [Indexed: 11/08/2022] Open
Abstract
Both genetic and environmental factors affect the risk of orofacial clefts. The present meta-analysis aimed to evaluate the association between methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism and risk of nonsyndromic cleft lip/palate (NSCL/P) in cases-control studies. The PubMed/Medline, Scopus, Web of Science, and Cochrane Library databases were searched up to April 2019 with no restrictions. The odds ratios (ORs) and 95% confidence intervals (CIs) in all analyses were calculated by Review Manager 5.3 software. The funnel plot analysis was carried out by the Comprehensive Meta-Analysis version 2.0 software. Subgroup analysis, meta-regression, and sensitivity analysis were performed for the pooled analyses. Thirty-one studies reviewed in this meta-analysis included 4710 NSCL/P patients and 7271 controls. There was no significant association between MTHFR C677T polymorphism and NSCL/P susceptibility related to allelic model (OR = 1.04; P = 0.49), homozygote model (OR = 1.11; P = 0.35), heterozygote model (OR = 0.99; P = 0.91), dominant model (OR = 1.00; P = 0.96), or recessive model (OR = 1.08; P = 0.23). There was no significant association between MTHFR C677T polymorphism and NSCL/P susceptibility based on the ethnicity or the source of cases. There was a significant linear relationship between the year of publication and log ORs for the allele model. The results of the present meta-analysis failed to show an association between MTHFR C677T polymorphism and NSCL/P susceptibility. The subgroup analyses based on the ethnicity and the source of cases further confirmed this result.
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Affiliation(s)
- Mohammad Moslem Imani
- Department of Orthodontics, School of Dentistry, Kermanshah University of Medical Sciences, Kermanshah, 6713954658, Iran
| | - Negin Golchin
- Students Research Committee, Kermanshah University of Medical Sciences, Kermanshah, 6715847141, Iran
| | - Mohsen Safaei
- Advanced Dental Sciences Research Laboratory, School of Dentistry, Kermanshah University of Medical Sciences, Kermanshah, 6713954658, Iran
| | - Farzad Rezaei
- Department of Oral and Maxillofacial Surgery, Kermanshah University of Medical Sciences, Kermanshah, 6713954658, Iran
| | - Hooshyar Abbasi
- Department of Oral and Maxillofacial Surgery, Kermanshah University of Medical Sciences, Kermanshah, 6713954658, Iran
| | - Masoud Sadeghi
- Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, 6714415185, Iran.
| | - Pia Lopez-Jornet
- Facultad de Medicina y Odontologia Universidad de Murcia, Hospital Morales Meseguer, Clinica Odontologic Adv Marques Velez s/n, 30008, Murcia, Spain
| | - Hamid Reza Mozaffari
- Department of Oral and Maxillofacial Medicine, School of Dentistry, Kermanshah University of Medical Sciences, Kermanshah, 6713954658, Iran
| | - Roohollah Sharifi
- Department of Endodontics, School of Dentistry, Kermanshah University of Medical Sciences, Kermanshah, 6713954658, Iran
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Shu X, Shu S, Yang L. Association between methylenetetrahydrofolate reductase polymorphisms and non-syndromic cleft lip with or without palate susceptibility: an updated systematic review and meta-analysis. Br J Oral Maxillofac Surg 2019; 57:819-830. [PMID: 31303355 DOI: 10.1016/j.bjoms.2019.06.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 06/17/2019] [Indexed: 02/05/2023]
Abstract
Methylenetetrahydrofolate reductase (MTHFR) polymorphisms are thought to be involved in the development of cleft lip with or without cleft palate (NSCL/P), but published results are contradictory. We therefore designed an updated meta-analysis to pool eligible studies and to evaluate further the possible relations between MTHFR polymorphisms (c.677C>T and c.1298A>C) and susceptibility to NSCL/P. A comprehensive search based on PubMed, Medline, Web of Science, and Embase databases was made up to February 2018. Twenty-three case-control and 10 case-parent trio studies (including 1149 cases and 1161 controls) were retrieved. Odds ratio (OR) with 95% CI were used to estimate the pooled strength of association under different genetic models. The Q test and I2 test were used to estimate heterogeneity among studies, the quality of which was assessed using the Newcastle-Ottawa scale. In the MTHFR c.677C>T polymorphism group, there were significant overall results for the recessive (OR 1.231, 95%CI 1.092 to 1.387) and homozygote (OR 1.252, 95%CI 1.078 to 1.456) models. Subgroup analysis by subjects and ethnicity identified only associations in European mothers for the recessive model and the homozygote model. For the c.1298A>C group, there were no significant results for either European or Asian patients for all genetic models. The MTHFR c.677C>T polymorphism might increase susceptibility to NSCL/P in European mothers, but was negatively associated in Asian patients, and the MTHFR c.1298A>C polymorphism is not involved in the development of NSCL/P in either European or Asian patients.
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Affiliation(s)
- X Shu
- Cleft Lip and Palate Treatment Center, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
| | - S Shu
- Cleft Lip and Palate Treatment Center, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
| | - L Yang
- Cleft Lip and Palate Treatment Center, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China.
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Vidmar M, Grželj J, Mlinarič-Raščan I, Geršak K, Dolenc MS. Medicines associated with folate-homocysteine-methionine pathway disruption. Arch Toxicol 2018; 93:227-251. [PMID: 30499019 DOI: 10.1007/s00204-018-2364-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2018] [Accepted: 11/20/2018] [Indexed: 12/18/2022]
Abstract
Folate is vital for cell development and growth. It is involved in one-carbon transfer reactions essential for the synthesis of purines and pyrimidines. It also acts in conjunction with cobalamin (vitamin B12) as a fundamental cofactor in the remethylation cycle that converts homocysteine to methionine. A deficiency in folate or vitamin B12 can lead to elevated homocysteine level, which has been identified as an independent risk factor in several health-related conditions. Adequate folate levels are essential in women of childbearing age and in pregnant women, and folate deficiency is associated with several congenital malformations. Low folate levels can be caused by dietary deficiencies, a genetic predisposition or treatment with medicines that affect folate concentration. Women who are pregnant or of child-bearing age commonly use medicines, so it is important to identify the basic biochemical mechanisms by which medicines interfere with the folate-homocysteine-methionine pathway. This review focuses on prescription medicines associated with folate disruption. It also summarizes their undesirable/toxic effects. Recommendations regarding folate supplementation during medical therapy are also reviewed.
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Affiliation(s)
- M Vidmar
- Research Unit, Department of Obstetrics and Gynecology, University Medical Centre Ljubljana, Šlajmarjeva 3, Ljubljana, Slovenia.,University of Ljubljana, Faculty of Pharmacy, Aškerčeva 7, Ljubljana, Slovenia
| | - J Grželj
- University of Ljubljana, Faculty of Pharmacy, Aškerčeva 7, Ljubljana, Slovenia.,Krka, d.d., Novo mesto, Šmarješka 6, Novo mesto, Slovenia
| | - I Mlinarič-Raščan
- University of Ljubljana, Faculty of Pharmacy, Aškerčeva 7, Ljubljana, Slovenia
| | - K Geršak
- Research Unit, Department of Obstetrics and Gynecology, University Medical Centre Ljubljana, Šlajmarjeva 3, Ljubljana, Slovenia
| | - M Sollner Dolenc
- University of Ljubljana, Faculty of Pharmacy, Aškerčeva 7, Ljubljana, Slovenia.
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Assis Machado R, de Toledo IP, Martelli-Júnior H, Reis SR, Neves Silva Guerra E, Coletta RD. Potential genetic markers for nonsyndromic oral clefts in the Brazilian population: A systematic review and meta-analysis. Birth Defects Res 2018; 110:827-839. [DOI: 10.1002/bdr2.1208] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 01/10/2018] [Accepted: 01/22/2018] [Indexed: 12/29/2022]
Affiliation(s)
- Renato Assis Machado
- Department of Oral Diagnosis, School of Dentistry; University of Campinas; Piracicaba SP Brazil
| | - Isabela Porto de Toledo
- Laboratory of Oral Histopathology, Health Sciences Faculty; University of Brasília; Brasília DF Brazil
| | | | | | - Eliete Neves Silva Guerra
- Laboratory of Oral Histopathology, Health Sciences Faculty; University of Brasília; Brasília DF Brazil
| | - Ricardo D. Coletta
- Department of Oral Diagnosis, School of Dentistry; University of Campinas; Piracicaba SP Brazil
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Ge X, Shi QM, Ding Z, Ju Q, Wang H, Wang Q, Li MX, Chen G, Wang HX, Xu LC. Association Between CRISPLD2 Polymorphisms and the Risk of Nonsyndromic Clefts of the Lip and/or Palate: A Meta-analysis. Cleft Palate Craniofac J 2018; 55:328-334. [PMID: 29437515 DOI: 10.1177/1055665617738995] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE Nonsyndromic clefts of the lip and/or palate (NSCL/P) are one of the most common polygenic diseases. Recently, many studies focused on the association between CRISPLD2 polymorphisms and NSCL/P risk. However, some studies have shown opposite results. In this study, meta-analysis was used to confirm whether CRISPLD2 polymorphism was associated with NSCL/P, and the possible mechanism between CRISPLD2 and NSCL/P was explored. METHODS Relevant studies were conducted on PubMed, Ovid, EBSCO, CINAHL, FMRS, Web of Science, CNKI, and Wanfang databases from their inception up to June 31, 2016. Review Manager 5.0.24 was used to analyze whether CRISPLD2 polymorphism was involved in NSCL/P by pooling odds ratios (ORs) and 95% confidence intervals (CIs). Potential publication bias was evaluated by visual inspection of the funnel plot. RESULTS CRISPLD2 rs4783099 was associated with cleft lip and/or palate (CL/P) statistically (OR = 3.18, P < .01). Compared to genotype TT, genotypes CC and CT were correlated significantly (OR = 2.04, P = .04) with CL/P. No evidence showed an association between genetic variation at the CRISPLD2 locus and cleft palate only (CP). CONCLUSION The polymorphism of CRISPLD2 rs4783099 is correlated with an increased risk of CL/P.
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Affiliation(s)
- Xing Ge
- 1 School of Public Health, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Qiao-Mei Shi
- 1 School of Public Health, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Zhen Ding
- 1 School of Public Health, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Qiang Ju
- 1 School of Public Health, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Hui Wang
- 1 School of Public Health, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Qi Wang
- 1 School of Public Health, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Meng-Xue Li
- 1 School of Public Health, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Gang Chen
- 1 School of Public Health, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Heng-Xue Wang
- 1 School of Public Health, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Li-Chun Xu
- 1 School of Public Health, Xuzhou Medical University, Xuzhou, Jiangsu, China
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11
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Mazul AL, Siega-Riz AM, Weinberg CR, Engel SM, Zou F, Carrier KS, Basta PV, Vaksman Z, Maris JM, Diskin SJ, Maxen C, Naranjo A, Olshan AF. A family-based study of gene variants and maternal folate and choline in neuroblastoma: a report from the Children's Oncology Group. Cancer Causes Control 2016; 27:1209-18. [PMID: 27541142 PMCID: PMC5025391 DOI: 10.1007/s10552-016-0799-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 08/11/2016] [Indexed: 12/18/2022]
Abstract
PURPOSE Neuroblastoma is a childhood cancer of the sympathetic nervous system with embryonic origins. Previous epidemiologic studies suggest maternal vitamin supplementation during pregnancy reduces the risk of neuroblastoma. We hypothesized offspring and maternal genetic variants in folate-related and choline-related genes are associated with neuroblastoma and modify the effects of maternal intake of folate, choline, and folic acid. METHODS The Neuroblastoma Epidemiology in North America (NENA) study recruited 563 affected children and their parents through the Children's Oncology Group's Childhood Cancer Research Network. We used questionnaires to ascertain pre-pregnancy supplementation and estimate usual maternal dietary intake of folate, choline, and folic acid. We genotyped 955 genetic variants related to folate or choline using DNA extracted from saliva samples and used a log-linear model to estimate both child and maternal risk ratios and stratum-specific risk ratios for gene-environment interactions. RESULTS Overall, no maternal or offspring genotypic results met criteria for a false discovery rate (FDR) Q-value <0.2. Associations were also null for gene-environment interaction with pre-pregnancy vitamin supplementation, dietary folic acid, and folate. FDR-significant gene-choline interactions were found for offspring SNPs rs10489810 and rs9966612 located in MTHFD1L and TYMS, respectively, with maternal choline dietary intake dichotomized at the first quartile. CONCLUSION These results suggest that variants related to one-carbon metabolism are not strongly associated with neuroblastoma. Choline-related variants may play a role; however, the functional consequences of the interacting variants are unknown and require independent replication.
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Affiliation(s)
- Angela L Mazul
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Campus Box 7435, 2106 McGavran-Greenberg Hall, Chapel Hill, NC, 27599-7435, USA.
| | - Anna Maria Siega-Riz
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Campus Box 7435, 2106 McGavran-Greenberg Hall, Chapel Hill, NC, 27599-7435, USA
- Department of Nutrition, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA
| | - Clarice R Weinberg
- Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Stephanie M Engel
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Campus Box 7435, 2106 McGavran-Greenberg Hall, Chapel Hill, NC, 27599-7435, USA
| | - Fei Zou
- Department of Biostatistics, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA
| | - Kathryn S Carrier
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Campus Box 7435, 2106 McGavran-Greenberg Hall, Chapel Hill, NC, 27599-7435, USA
| | - Patricia V Basta
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Campus Box 7435, 2106 McGavran-Greenberg Hall, Chapel Hill, NC, 27599-7435, USA
- Biospecimen Processing Center, University of North Carolina, Chapel Hill, NC, USA
| | - Zalman Vaksman
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Biomedical and Health Informatics, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - John M Maris
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Sharon J Diskin
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Charlene Maxen
- Showers Center for Childhood Cancer and Blood Disorder, Akron Children's Hospital, Akron, OH, USA
| | - Arlene Naranjo
- Department of Biostatistics, Colleges of Medicine and Public Health & Health Professions, University of Florida, Gainesville, FL, USA
| | - Andrew F Olshan
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Campus Box 7435, 2106 McGavran-Greenberg Hall, Chapel Hill, NC, 27599-7435, USA
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Ramírez-Chau C, Blanco R, Colombo A, Pardo R, Suazo J. MTHFRc.677C>T is a risk factor for non-syndromic cleft lip with or without cleft palate in Chile. Oral Dis 2016; 22:703-8. [DOI: 10.1111/odi.12533] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 06/15/2016] [Accepted: 07/02/2016] [Indexed: 11/29/2022]
Affiliation(s)
- C Ramírez-Chau
- Instituto de Investigación en Ciencias Odontológicas; Facultad de Odontología; Universidad de Chile; Santiago Chile
| | - R Blanco
- Programa de Genética Humana; Instituto de Ciencias Biomédicas; Facultad de Medicina; Universidad de Chile; Santiago Chile
| | - A Colombo
- Programa de Anatomía y Biología del Desarrollo; Instituto de Ciencias Biomédicas; Facultad de Medicina; Universidad de Chile; Santiago Chile
- Servicio de Anatomía Patológica; Hospital Clínico de la Universidad de Chile; Santiago Chile
| | - R Pardo
- Sección de Genética; Hospital Clínico Universidad de Chile; Santiago Chile
- Unidad de Neonatología; Hospital Clínico Universidad de Chile; Santiago Chile
- Unidad de Genética; Hospital Dr. Sótero del Río; Santiago Chile
| | - J Suazo
- Instituto de Investigación en Ciencias Odontológicas; Facultad de Odontología; Universidad de Chile; Santiago Chile
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13
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de Aguiar PKF, Coletta RD, de Oliveira AMLF, Machado RA, Furtado PGC, de Oliveira LA, de Aquino SN, Martelli-Junior H, de Almeida Reis SR, Moreira HSB, Persuhn DC. rs1801133C>T polymorphism inMTHFRis a risk factor for nonsyndromic cleft lip with or without cleft palate in the Brazilian population. ACTA ACUST UNITED AC 2015; 103:292-8. [DOI: 10.1002/bdra.23365] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | - Ricardo D. Coletta
- Department of Oral Diagnosis; School of Dentistry; State University of Campinas; Piracicaba São Paulo Brazil
| | | | - Renato Assis Machado
- Department of Oral Diagnosis; School of Dentistry; State University of Campinas; Piracicaba São Paulo Brazil
| | | | | | | | - Hercilio Martelli-Junior
- Stomatology Clinic; Dental School; State University of Montes Claros; Montes Claros Minas Gerais Brazil
- Center for Rehabilitation of Craniofacial Anomalies; Dental School; University of José Rosario Vellano; Alfenas Minas Gerais Brazil
| | | | | | - Darlene Camati Persuhn
- Molecular Biology Department - Federal University of Paraíba; João Pessoa Paraíba Brazil
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Pan X, Wang P, Yin X, Liu X, Li D, Li X, Wang Y, Li H, Yu Z. Association between Maternal MTHFR Polymorphisms and Nonsyndromic Cleft Lip with or without Cleft Palate in Offspring, A Meta-Analysis Based on 15 Case-Control Studies. INTERNATIONAL JOURNAL OF FERTILITY & STERILITY 2015; 8:463-80. [PMID: 25780529 PMCID: PMC4355933 DOI: 10.22074/ijfs.2015.4186] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2013] [Accepted: 11/25/2013] [Indexed: 11/30/2022]
Abstract
Background The methylenetetrahydrofolate reductase (MTHFR) is thought to be
involved in the development of nonsyndromic cleft lip with or without cleft palate
(NSCL/P). However, conflicting results have been obtained when evaluating the association between maternal MTHFR C677T and A1298C polymorphisms and the risk of
NSCL/P. In light of this gap, a meta-analysis of all eligible case-control studies was
conducted in the present study. Materials and Methods A total of 15 case-control studies were ultimately identified
after a comprehensive literature search and Hardy-Weinberg equilibrium (HWE) examination. Cochrane’s Q test and index of heterogeneity (I2) indicated no obvious heterogeneity among studies. Results Fixed or random-effects models were used to calculate the pooled odds ratios
(ORs). The results showed that the TT genotype in mothers increased the likelihood of having
NSCL/P offspring 1.25 times (95% CI: 1.047-1.494) more than the CC homozygotes. Meanwhile, maternal TT genotype increased the risk of producing NSCL/P offspring in recessive
model (OR=1.325, 95% CI: 1.124-1.562). However, the CT heterozygote and the CT+TT
dominant models had no association with NSCL/P offspring compared with the CC wild-type
homozygote model. Subgroup analyses based on ethnicity indicated that maternal TT genotype increased the likelihood of having NSCL/P offspring in Whites (OR=1.308, 95% CI:
1.059-1.617) and Asians (OR=1.726, 95% CI: 1.090-2.733) in recessive model. Also, subgroup analyses based on source of control showed that mothers with the 677TT genotype had
a significantly increased susceptibility of having NSCL/P children in hospital based population (HB) when compared with CC homozygotes (OR=1.248, 95% CI: 1.024-1.520) and un-
der the recessive model (OR=1.324, 95% CI: 1.104-1.588). Furthermore, maternal A1298C
polymorphism had no significant association with producing NSCL/P offspring (dominant
model OR=0.952, 95% CI: 0.816-1.111, recessive model OR=0.766, 95% CI: 0.567-1.036). Conclusion MTHFR C677T polymorphism is associated with the risk of generating NSCL/P
offspring, and being a 677TT homozygote is a risk factor. MTHFR A1298C polymorphism
was not associated with generating NSCL/P offspring. However, further work should be performed to confirm these findings.
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Affiliation(s)
- Xinjuan Pan
- College of Public Health, Zhengzhou University, Zhengzhou, China ; Medical College, Henan University of Science and Technology, Luoyang, China
| | - Ping Wang
- Medical College, Henan University of Science and Technology, Luoyang, China
| | - Xinjuan Yin
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Xiaozhuan Liu
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Di Li
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Xing Li
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Yongchao Wang
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Hongle Li
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Zengli Yu
- College of Public Health, Zhengzhou University, Zhengzhou, China
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15
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Papageorgiou SN, Dimitraki D, Coolidge T, Kotsanos N. Publication bias & small-study effects in pediatric dentistry meta-analyses. J Evid Based Dent Pract 2014; 15:8-24. [PMID: 25666576 DOI: 10.1016/j.jebdp.2014.09.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Accepted: 09/12/2014] [Indexed: 12/30/2022]
Abstract
OBJECTIVES The aim of this study was to examine the presence and extent of publication bias and small-study effects in meta-analyses (MAs) investigating pediatric dentistry-related subjects. METHODS Following a literature search, 46 MAs including 882 studies were analyzed qualitatively. Of these, 39 provided enough data to be re-analyzed. Publication bias was assessed with the following methods: contour-enhanced funnel plots, Begg and Mazumdar's rank correlation and Egger's linear regression tests, Rosenthal's failsafe N, and Duval and Tweedie's "trim and fill" procedure. RESULTS Only a few MAs adequately assessed the existence and effect of publication bias. Inspection of the funnel plots indicated asymmetry, which was confirmed by Begg-Mazumdar's test in 18% and by Egger's test in 33% of the MAs. According to Rosenthal's criterion, 80% of the MAs were robust, while adjusted effects with unpublished studies differed from little to great from the unadjusted ones. Pooling of the Egger's intercepts indicated that evidence of asymmetry was found in the pediatric dental literature, which was accentuated in dental journals and in diagnostic MAs. Since indications of small-study effects and publication bias in pediatric dentistry were found, the influence of small or missing trials on estimated treatment effects should be routinely assessed in future MAs.
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Affiliation(s)
- Spyridon N Papageorgiou
- Department of Orthodontics, School of Dentistry, University of Bonn, Bonn, Germany; Department of Oral Technology, School of Dentistry, University of Bonn, Bonn, Germany; Clinical Research Unit 208, University of Bonn, Bonn, Germany.
| | - Dionysia Dimitraki
- Department of Paediatric Dentistry, School of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Trilby Coolidge
- Department of Oral Health Sciences, School of Dentistry, University of Washington, Seattle, WA, USA
| | - Nikolaos Kotsanos
- Department of Paediatric Dentistry, School of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
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16
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Mitchell LE, Agopian AJ, Bhalla A, Glessner JT, Kim CE, Swartz MD, Hakonarson H, Goldmuntz E. Genome-wide association study of maternal and inherited effects on left-sided cardiac malformations. Hum Mol Genet 2014; 24:265-73. [PMID: 25138779 DOI: 10.1093/hmg/ddu420] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Congenital left-sided lesions (LSLs) are serious, heritable malformations of the heart. However, little is known about the genetic causes of LSLs. This study was undertaken to identify common variants acting through the genotype of the affected individual (i.e. case) or the mother (e.g. via an in utero effect) that influence the risk of LSLs. A genome-wide association study (GWAS) was performed using data from 377 LSL case-parent triads, with follow-up studies in an independent sample of 224 triads and analysis of the combined data. Associations with both the case and maternal genotypes were assessed using log-linear analyses under an additive model. An association between LSLs and the case genotype for one intergenic SNP on chromosome 16 achieved genome-wide significance in the combined data (rs8061121, combined P = 4.0 × 10(-9); relative risk to heterozygote: 2.6, 95% CI: 1.9-3.7). In the combined data, there was also suggestive evidence of association between LSLs and the case genotype for a variant in the synaptoporin gene (rs1975649, combined P = 3.4 × 10(-7); relative risk to heterozygote: 1.6, 95% CI: 1.4-2.0) and between LSLs and the maternal genotype for an intergenic SNP on chromosome 10 (rs11008222, combined P = 6.3 × 10(-7); relative risk to heterozygote: 1.6, 95% CI: 1.4-2.0). This is the first GWAS of LSLs to evaluate associations with both the case and maternal genotypes. The results of this study identify three candidate LSL susceptibility loci, including one that appears to be associated with the risk of LSLs via the maternal genotype.
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Affiliation(s)
- Laura E Mitchell
- Division of Epidemiology, Human Genetics and Environmental Sciences, University of Texas School of Public Health, Houston, TX 77030, USA
| | - A J Agopian
- Division of Epidemiology, Human Genetics and Environmental Sciences, University of Texas School of Public Health, Houston, TX 77030, USA
| | - Angela Bhalla
- Division of Epidemiology, Human Genetics and Environmental Sciences, University of Texas School of Public Health, Houston, TX 77030, USA
| | | | | | - Michael D Swartz
- Division of Biostatistics, University of Texas School of Public Health, Houston, TX 77030, USA and
| | - Hakon Hakonarson
- The Center for Applied Genomics and Department of Pediatrics, The Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Elizabeth Goldmuntz
- Division of Cardiology, The Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA Department of Pediatrics, The Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
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17
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Jung SH, Lee AY, Park JW, Baek SH, Kim YH. Investigation of Parental Transmission of RUNX2 Single Nucleotide Polymorphism and Its Association with Nonsyndromic Cleft Lip with or Without Palate. Cleft Palate Craniofac J 2014; 51:234-9. [DOI: 10.1597/12-312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Objective To investigate the association and parental transmission of RUNX2 single nucleotide polymorphisms (SNPs) with risk of nonsyndromic cleft lip with or without cleft palate (NS-CL±P). Design Four RUNX2 SNPs in 142 Korean NS-CL±P families (nine cleft lip, 26 cleft lip and alveolus, and 107 cleft lip and palate; 76 trios and 66 dyads) were genotyped. The minor allele frequency, heterozygosity, and chi-square test for Hardy-Weinberg equilibrium at each SNP were computed between parents. Pairwise linkage disequilibrium was computed as D′ and r2 for all SNPs. Both allelic and genotypic transmission disequilibrium tests (TDTs) were performed for individual SNPs using a family-based association test program. Sliding windows of haplotypes consisting of two to four SNPs were tested using a haplotype-based association test program. Genotypic odds ratios (GORs) were calculated from conditional logistic regression models. Parent-of-origin effects were assessed using transmission asymmetry test and parent-of-origin likelihood ratio test. Results The family-based TDT showed significant evidence of linkage and association at rs1934328 ( P = .001). In the haplotype analysis, two, three, and four haplotypes containing rs1934328 revealed significant associations ( P = .0017, P = .0022, and P = .0020, respectively). The genotypes A/T and T/T at rs1934328 were significantly associated with NS-CL±P compared with the genotype A/A (GOR = 2.75, 95% confidence interval [CI] = 1.39–5.45, P =0.0019 in the dominant model; GOR = 5.38, 95% CI = 1.34–21.68, P = .0046 in the additive model). However, no parent-of origin effect was observed. Conclusion These findings suggest possible involvement of RUNX2-rs 194328 in the etiology of NS-CL±P in Korean cleft-parent trios without excess parental transmission.
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Affiliation(s)
- Seung Hee Jung
- Department of Orthodontics, The Institute of Oral Health Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | | | - Ji Wan Park
- Department of Medical Genetics, College of Medicine, Hallym University, Chuncheon, Gangwon Province, South Korea
| | - Seung-Hak Baek
- Department of Orthodontics, School of Dentistry, Dental Research Institute, Seoul National University, Seoul, South Korea
| | - Young Ho Kim
- Department of Orthodontics, The Institute of Oral Health Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
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de Aquino SN, Hoshi R, Bagordakis E, Pucciarelli MGR, Messetti AC, Moreira H, Bufalino A, Borges A, Rangel AL, Brito LA, Oliveira Swerts MS, Martelli-Junior H, Line SR, Graner E, Reis SRA, Passos-Bueno MR, Coletta RD. MTHFR rs2274976 polymorphism is a risk marker for nonsyndromic cleft lip with or without cleft palate in the Brazilian population. ACTA ACUST UNITED AC 2013; 100:30-5. [PMID: 24254627 DOI: 10.1002/bdra.23199] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2013] [Accepted: 09/21/2013] [Indexed: 11/06/2022]
Abstract
BACKGROUND Polymorphisms within the MTHFR (rs2274976) and MTHFD1 (rs2236225) genes were previously associated with maternal susceptibility for having an offspring with nonsyndromic cleft lip with or without cleft palate (NSCL/P) in the Brazilian population. However, as the genotypes of the patients with NSCL/P were not evaluated, it is not clear whether the effects are associated with maternal or offspring genotypes. The aim of this study was to evaluate the association of rs2274976 and rs2236225 in the pathogenesis of NSCL/P. METHODS By using the TaqMan 5'-exonuclease allelic discrimination assay, the present study genotyped the rs2274976 and rs2236225 polymorphisms in 147 case-parent trios, 181 isolated samples of NSCL/P and 478 healthy controls of the Brazilian population. Transmission disequilibrium test and structured case-control analysis based on the individual ancestry proportions were performed. RESULTS The transmission disequilibrium test showed a significant overtransmission of the rs2274976 A allele (p = 0.004), but no preferential parent-of-origin transmission was detected. The structured case-control analysis supported those findings, revealing that the minor A allele of rs2274976 was significantly more frequent in NSCL/P group compared with control group (p = 0.001), yielding an odds ratio of 3.46 (95% confidence interval, 2.05-5.85). No association of rs2236225 polymorphism with NSCL/P was observed in both transmission disequilibrium test and case-control analysis. CONCLUSION The results of the study revealed that the presence of the rs2274976 A allele is a risk marker for the development of NSCL/P in the Brazilian population.
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Affiliation(s)
- Sibele Nascimento de Aquino
- Department of Oral Diagnosis, School of Dentistry, State University of Campinas, Piracicaba, São Paulo, Brazil
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Methylenetetrahydrofolate reductase C677T and A1298C polymorphisms and susceptibility to gastric adenocarcinoma in an Italian population. PLoS One 2007; 9:e88242. [PMID: 24658649 PMCID: PMC3962346 DOI: 10.1371/journal.pone.0088242] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2013] [Accepted: 01/09/2014] [Indexed: 01/16/2023] Open
Abstract
Objective Several studies have reported the association between methylenetetrahydrofolate reductase (MTHFR) C677T and A1298C polymorphisms and nonsyndromic cleft lip with or without palate (NSCL/P) in Asian populations. However, findings have been conflicting. In order to investigate the association, a meta-analysis was performed. Methods We searched Pubmed, MedLine and EmBase database to selected eligible studies. The pooled odds ratios (ORs) with 95% confidence intervals (95%CIs) were calculated using fixed effects model or random effects model to assess the association between MTHFR polymorphisms and NSCL/P in both Asian children and mothers. Results Finally, nine case-control studies were included. Overall, the MTHFR C677T polymorphism and NSCL/P showed pooled ORs (95%CI) of 1.41(1.23–1.61) in Asian children, and 1.70(1.19–2.42) in Asian mothers. Subgroup analyses by geographical locations further identified the association in Eastern Asian children, Western/Central Asian children and mothers, but not in Eastern Asian mothers. However, no significant relationship between MTHFR A1298C polymorphism and NSCL/P was found in this meta-analysis. Conclusions The MTHFR 677T allele was associated with an increased risk of NSCL/P in Asian populations.
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