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Fujihara J, Yasuda T, Iida R, Ueki M, Sano R, Kominato Y, Inoue K, Kimura-Kataoka K, Takeshita H. Global analysis of genetic variations in a 56-bp variable number of tandem repeat polymorphisms within the human deoxyribonuclease I gene. Leg Med (Tokyo) 2015; 17:283-6. [PMID: 25771153 DOI: 10.1016/j.legalmed.2015.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 01/18/2015] [Accepted: 01/30/2015] [Indexed: 11/25/2022]
Abstract
A 56-bp variable number of tandem repeat polymorphism is confirmed in intron 4 of the human deoxyribonuclease I (DNase I) gene (HumDN1). The purpose of the present study was to document global ethnic variations of allelic frequencies in HumDN1 VNTR polymorphisms. In this study, HumDN1 VNTR polymorphisms in 11 worldwide populations were examined by polymerase chain reaction and compared with those reported previously. Fifteen genotypes were identified in these 11 populations. Novel genotypes were found: 1/2 was observed in Ghanaians and mestizos, 3/6 was in Tamangs, 4/6 was in Tibetans and Nahuas, 6/6 was in Sinhalese. The African population showed the highest frequency for the HumDN1(∗)3 allele. Among Asian populations, the different genotype distribution was observed. The predominant allele in Mongolian, Korean, Japanese, and Chinese populations was HumDN1(∗)3, followed by HumDN1(∗)4, and then HumDN1(∗)5. In Chinese from South China, Tamangs, and Sinhalese, HumDN1(∗)4 and HumDN1(∗)5 were predominant. The allele frequency for HumDN1(∗)4 was high in three Mexican populations, but a significant difference was observed between Nahuas and Huicoles. Germans and Turks showed a similar distribution. This study is the first to show the existence of a certain genetic heterogeneity in the worldwide distribution of HumDN1 VNTR polymorphism.
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Affiliation(s)
- Junko Fujihara
- Department of Legal Medicine, Shimane University Faculty of Medicine, 89-1 Enya, Izumo, Shimane 693-8501, Japan.
| | - Toshihiro Yasuda
- Division of Medical Genetics and Biochemistry, Faculty of Medical Sciences, University of Fukui, Eiheiji-cho, Japan
| | - Reiko Iida
- Division of Life Science, Faculty of Medical Sciences, University of Fukui, Eiheiji-cho, Japan
| | - Misuzu Ueki
- Division of Medical Genetics and Biochemistry, Faculty of Medical Sciences, University of Fukui, Eiheiji-cho, Japan
| | - Rie Sano
- Department of Legal Medicine, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Yoshihiko Kominato
- Department of Legal Medicine, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Ken Inoue
- Department of Public Health, Faculty of Medicine, Shimane University, Izumo, Japan
| | - Kaori Kimura-Kataoka
- Department of Legal Medicine, Shimane University Faculty of Medicine, 89-1 Enya, Izumo, Shimane 693-8501, Japan
| | - Haruo Takeshita
- Department of Legal Medicine, Shimane University Faculty of Medicine, 89-1 Enya, Izumo, Shimane 693-8501, Japan
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Fujihara J, Yasuda T, Kawai Y, Morikawa N, Arakawa K, Koda Y, Soejima M, Kimura-Kataoka K, Takeshita H. First survey of the three gene polymorphisms (PON1 Q192R, eNOS E298D and eNOS C-786T) potentially associated with coronary artery spasm in African populations and comparison with worldwide data. Cell Biochem Funct 2011; 29:156-63. [DOI: 10.1002/cbf.1721] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2010] [Revised: 12/09/2010] [Accepted: 12/13/2010] [Indexed: 01/08/2023]
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Takeshita H, Soejima M, Koda Y, Yasuda T, Takatsuka H, Fujihara J. Gln222Arg (A2317G) polymorphism in the deoxyribonuclease I gene exhibits ethnic and functional differences. Clin Chem Lab Med 2009; 47:51-5. [DOI: 10.1515/cclm.2009.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Ethnic differences in five intronic polymorphisms associated with arsenic metabolism within human arsenic (+3 oxidation state) methyltransferase (AS3MT) gene. Toxicol Appl Pharmacol 2009; 234:41-6. [DOI: 10.1016/j.taap.2008.09.026] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2008] [Revised: 09/24/2008] [Accepted: 09/26/2008] [Indexed: 11/19/2022]
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Ni Y, Zhang J, Sun B. Deoxyribonuclease I gene polymorphism in Han Chinese population: frequency and effect on glucose and lipid parameters. Mol Biol Rep 2007; 35:479-84. [PMID: 17588132 DOI: 10.1007/s11033-007-9110-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2007] [Accepted: 05/31/2007] [Indexed: 11/26/2022]
Abstract
DNASE1, the encoding gene of deoxyribonuclease I (DNase I), exhibits polymorphisms, including a single nucleotide polymorphism (SNP A2317G) in exon 8 and a 56 bp variable number of tandem repeat, designated as HumDN1 in intron 4. Several different ethnic population studies have revealed both A2317G and HumDN1 demonstrate genetic heterogeneity in the worldwide distribution. Recently, G2317 allele was proposed as an independent risk factor for myocardial infarction in Japanese population. In the present study, we identified A2317G and HumDN1 genotypes in 402 unrelated healthy Han Chinese individuals. At the same time, the impact of different genotypes and diplotypes of DNase I on plasma lipids levels and fasting blood glucose was also illuminated. Polymerase chain reaction and restriction fragment length polymorphism were used for the detection of HumDN1 and A2317G polymorphisms. Plasma glucose and lipids were measured in fasting state by biochemical methods. Three genotypes of A2317G and 9 genotypes of HumDN1 were detected in Han Chinese population. Among them, the most predominate alleles were A2317 (frequency = 53.6%) and HumDN1*3 (frequency = 47.4%) respectively. Linkage disequilibrium between A2317G and HumDN1 polymorphisms was also observed (D' = 0.717). Haplotype A-3, presented in frequency of 46.5%, was most common. Compared to other ethnic populations, Han Chinese had its own unique DNase I gene distribution characteristics. As for the influence of DNase I gene polymorphisms on lipids and glucose levels, no association was found between either genotype or diplotype and these parameters. (all P > 0.05). Results obtained in this study could be used for anthropological investigation, probing into relations between DNase I gene and diseases.
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Affiliation(s)
- Yuhua Ni
- Department of Cardiology, The First People's Hospital Affiliated to Shanghai Jiaotong University, 85 Wujin Road, Shanghai, P.R. China
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