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Bushueva OY. Genetic Variants rs1049255 CYBA and rs2333227 MPO are Associated with Susceptibility to Coronary Artery Disease in Russian Residents of Central Russia. KARDIOLOGIIA 2020; 60:1229. [PMID: 33228505 DOI: 10.18087/cardio.2020.10.n1229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 09/11/2020] [Indexed: 06/11/2023]
Abstract
Aim To study association of single-nucleotide polymorphisms rs1049255 CYBA and rs2333227 MPO with development of ischemic heart disease (IHD) in Russian residents of Central Russia.Material and methods The study material was DNA samples from 436 patients with IHD (265 men, 171 women; mean age, 61 years) and 370 sex- and age-matched arbitrarily healthy volunteers (209 men, 161 women; mean age, 60 years). Genotyping was performed by allelic discrimination with TaqMan probes.Results Comparative analysis of genotype frequency (log-additive regression model) showed that SNP rs1049255 CYBA (odds ratio, OR, 0.79 at 95 % confidence interval, CI, from 0.65 to 0.96; p=0.02) and rs2333227 MPO (OR 0.72 at 95 % CI from 0.55 to 0.95; p=0.02) were associated with a decreased risk of IHD adjusted for sex and age. Analysis of sex-specific effects showed that the protective effect of rs1049255 CYBA was evident only in men (OR 0.72 at 95 % CI from 0.55 to 0.94; p=0.16).Conclusion The study demonstrated a protective effect of rs1049255 CYBA and rs2333227 MPO with respect of IHD in Russians. The protective effect of rs1049255 CYBA was observed only in men.
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Yuan B, Yuan W, Wen X, Li C, Gao L, Li B, Wang D, Cui L, Li Y. Association of single nucleotide polymorphisms in the CYBA gene with coal workers' pneumoconiosis in the Han Chinese population. Inhal Toxicol 2019; 30:492-497. [PMID: 30654669 DOI: 10.1080/08958378.2018.1558315] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Coal workers' pneumoconiosis (CWP) is caused by long-term exposure to inhaled coal dust; it is likely influenced by the interaction between environmental factors and multiple susceptibility genes, such as the CYBA (cytochrome b-245α polypeptide) gene that has recently been identified to be involved in the genetic susceptibility for several pulmonary diseases. The aim of this case-control study was to explore the association between CYBA gene polymorphisms and the development of CWP in coal miners belonging to the Han ethnic group in China. Single nucleotide polymorphisms (SNPs) rs7195830, rs13306296, rs4673, rs9932581, and rs16966671 of the CYBA gene were analyzed in CWP patients (n = 652) and dust-exposed control subjects (n = 648) using the matrix-assisted laser desorption/ionization-time of flight mass spectrometry (MALDI-TOF MS) on the Sequenom MassARRAY® platform (Sequenom, San Diego, CA, USA). Results from the present study showed a strong allele association between CWP patients and the CYBA SNP rs7195830 polymorphism (p < .001, OR = 1.550). Using the additive and the dominant model, the CYBA SNP rs7195830 polymorphism also showed significant associations with CWP patients (p < .001, OR = 1.621; p = .003, OR = 1.711, respectively). No statistically significant difference was demonstrated in either the allele or genotype frequencies of the other four examined SNPs (rs13306296, rs4673, rs9932581, and rs16966671) between the CWP group and dust-exposed control group (all p > .05). The present study is the first to have demonstrated an association between CYBA (rs7195830) polymorphism and the risk of developing CWP in subjects belong to the Han ethnic group in China and provides further clues for research into the pathogenesis of CWP.
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Affiliation(s)
- Baojun Yuan
- a Department of Clinical Laboratory , Kai Luan General Hospital , Tangshan , Hebei , China
| | - Wei Yuan
- b Department of Rheumatology and Clinical Immunology , Kai Luan General Hospital , Tangsha , Hebei , China
| | - Xiaoting Wen
- c Department of Rheumatology and Clinical Immunology , Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , China
| | - Chao Li
- a Department of Clinical Laboratory , Kai Luan General Hospital , Tangshan , Hebei , China
| | - Lichang Gao
- a Department of Clinical Laboratory , Kai Luan General Hospital , Tangshan , Hebei , China
| | - Baolin Li
- a Department of Clinical Laboratory , Kai Luan General Hospital , Tangshan , Hebei , China
| | - Dongmei Wang
- a Department of Clinical Laboratory , Kai Luan General Hospital , Tangshan , Hebei , China
| | - Liufu Cui
- b Department of Rheumatology and Clinical Immunology , Kai Luan General Hospital , Tangsha , Hebei , China
| | - Yongzhe Li
- c Department of Rheumatology and Clinical Immunology , Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , China
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Nowak T, Niemiec P, Iwanicki T, Balcerzyk A, Krauze J, Ochalska-Tyka A, Zak I. Analysis of selected promoter polymorphisms and haplotypes of theCYBAgene encoding the p22phox, subunit of NADPH oxidases, in patients with coronary artery disease. Free Radic Res 2018; 52:1132-1139. [DOI: 10.1080/10715762.2018.1532569] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Tomasz Nowak
- Department of Biochemistry and Medical Genetics, School of Health Sciences in Katowice, Medical University of Silesia, Katowice, Poland
| | - Paweł Niemiec
- Department of Biochemistry and Medical Genetics, School of Health Sciences in Katowice, Medical University of Silesia, Katowice, Poland
| | - Tomasz Iwanicki
- Department of Biochemistry and Medical Genetics, School of Health Sciences in Katowice, Medical University of Silesia, Katowice, Poland
| | - Anna Balcerzyk
- Department of Biochemistry and Medical Genetics, School of Health Sciences in Katowice, Medical University of Silesia, Katowice, Poland
| | - Jolanta Krauze
- 1st Department of Cardiac Surgery, 2nd Department of Cardiology, Bielsko-Biała, Poland
| | - Anna Ochalska-Tyka
- Regional Centre of Blood Donation and Blood Treatment in Raciborz, Raciborz, Poland
| | - Iwona Zak
- Department of Biochemistry and Medical Genetics, School of Health Sciences in Katowice, Medical University of Silesia, Katowice, Poland
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Hernández-Socorro CR, Rodríguez-Esparragón FJ, Celli J, López-Fernández JC. Sonographic evaluation of atherosclerosis burden in carotid arteries of ischemic stroke patients and its relation to paraoxonase 1 and 2, MTHFR and AT1R genetic variants. J Neurol Sci 2017; 378:146-151. [PMID: 28566152 DOI: 10.1016/j.jns.2017.05.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 05/03/2017] [Accepted: 05/05/2017] [Indexed: 11/15/2022]
Abstract
OBJECTIVE Common variants of the Paraoxonase (PON), 5-Methyl-Tetrahydrofolate-Reductase (MTHFR) and Angiotensin-II receptor 1 (AT1R) genes have been associated with ischemic stroke (IS) risk. Moreover, carotid atherosclerosis is a common cause of IS. The aim of this study is to explore whether variants in these genes associate with the severity of ultrasonographic determined atherosclerosis assessed in carotid arteries. PATIENTS AND METHODS Etiologic subtype of cerebral ischemia was determined according to the TOAST classification. Genotypes were detected by PCR and restriction analysis. An ultrasonographic supra-aortic trunks study was performed to all patients to assess their atherosclerotic involvement based on predefined criteria. RESULTS In IS patients, none of the analyzed gene distributions differed concerning the stenosis degree. Nevertheless, a trend was observed for the rs662 and rs7493 variants of the PON1 and PON2 genes respectively. When evaluated the results based on different inheritance models, a significant contribution of rs7493 variant according to a dominant (OR=2.397, 95% CI (1.001-5.376); p=0.045) and log-additive inheritance forms (OR=1.85, 95% CI (1.07-3.2); p=0.03) was observed. Only rs7493 reached statistical significance (p=0.013), when genotype distribution was analyzed according to carotid intima-media thickness (cIMT) and remain significant in multivariate logistic regression analysis (OR=2.66, 95% CI (1.1 to 6.4); p=0.03). CONCLUSION In IS patients of the north area of the Gran Canaria island the PON2 (rs7493) gene variant associates with a worse ultrasonographic profile. Conversely, the Cys311Cys homozygosis of the rs7493 variant was also related to a better ultrasonographic profile in our study.
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Affiliation(s)
- Carmen Rosa Hernández-Socorro
- Servicio de Radiología, Hospital Universitario de Gran Canaria Dr. Negrín (HUGCDN), Las Palmas de Gran Canaria, Gran Canaria, Spain; Unidad de Investigación, HUGCDN, Las Palmas de Gran Canaria, Gran Canaria, Spain; Universidad de Las Palmas de Gran Canaria (ULPGC), Las Palmas de Gran Canaria, Gran Canaria, Spain.
| | - Francisco Javier Rodríguez-Esparragón
- Unidad de Investigación, HUGCDN, Las Palmas de Gran Canaria, Gran Canaria, Spain; Universidad de Las Palmas de Gran Canaria (ULPGC), Las Palmas de Gran Canaria, Gran Canaria, Spain
| | - Jennifer Celli
- Servicio de Radiología, Hospital Universitario de Gran Canaria Dr. Negrín (HUGCDN), Las Palmas de Gran Canaria, Gran Canaria, Spain; Unidad de Investigación, HUGCDN, Las Palmas de Gran Canaria, Gran Canaria, Spain
| | - Juan Carlos López-Fernández
- Unidad de Investigación, HUGCDN, Las Palmas de Gran Canaria, Gran Canaria, Spain; Universidad de Las Palmas de Gran Canaria (ULPGC), Las Palmas de Gran Canaria, Gran Canaria, Spain; Servicio de Neurología, HUGCDN, Las Palmas de Gran Canaria, Gran Canaria, Spain
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Fletcher NM, Belotte J, Saed MG, Memaj I, Diamond MP, Morris RT, Saed GM. Specific point mutations in key redox enzymes are associated with chemoresistance in epithelial ovarian cancer. Free Radic Biol Med 2017; 102:122-132. [PMID: 27890641 DOI: 10.1016/j.freeradbiomed.2016.11.028] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 11/06/2016] [Accepted: 11/14/2016] [Indexed: 01/30/2023]
Abstract
Oxidative stress plays an important role in the pathophysiology of ovarian cancer. Resistance to chemotherapy presents a significant challenge for ovarian cancer treatment. Specific single nucleotide polymorphisms (SNPs) in key redox enzymes have been associated with ovarian cancer survival and progression. The objective of this study was to determine whether chemotherapy induces point mutations in key redox enzymes that lead to the acquisition of chemoresistance in epithelial ovarian cancer (EOC). Human EOC cell lines and their chemoresistant counterpart were utilized for this study. Specific SNPs in key redox enzymes were analyzed by TaqMan SNP Genotyping. Activities and levels of key redox enzymes were determined by real-time RT-PCR, ELISA and a greiss assay. Point mutations in key redox enzymes were introduced into sensitive EOC cells via the CRISPR/Cas9 system. Cell viability and IC50 for cisplatin were determined by the MTT Cell Proliferation Assay. Data was analyzed with SPSS using Student's two-tailed t-tests and One-way ANOVA followed by Dunnett's or Tukey's post hoc tests, p<0.05. Here, we demonstrate that chemoresistant EOC cells are characterized by a further enhancement in oxidative stress as compared to sensitive counterparts. Additionally, chemoresistant EOC cells manifested specific point mutations, which are associated with altered enzymatic activity, in key redox enzymes that are not detected in sensitive counterparts. Supplementation of an antioxidant was able to successfully sensitize EOC cells to chemotherapeutics. Causality was established by the induction of these point mutations in sensitive EOC cells, which resulted in a significant increase in the level of chemoresistance. These findings indicate that chemotherapy induces specific point mutations in key redox enzymes that contribute to the acquisition of chemoresistance in EOC cells, highlighting a potential novel mechanism. Identification of targets for chemoresistance with either biomarker and/or screening potential will have a significant impact for the treatment of this disease.
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Affiliation(s)
- Nicole M Fletcher
- Department of Obstetrics and Gynecology, The C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI 48201, USA.
| | - Jimmy Belotte
- Department of Obstetrics and Gynecology, The C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI 48201, USA.
| | - Mohammed G Saed
- Department of Obstetrics and Gynecology, The C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI 48201, USA.
| | - Ira Memaj
- Department of Obstetrics and Gynecology, The C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI 48201, USA; Department of Obstetrics and Gynecology, Augusta University, Augusta, GA 30912, USA; Karmanos Cancer Institute, Detroit, MI 48201, USA.
| | - Michael P Diamond
- Department of Obstetrics and Gynecology, Augusta University, Augusta, GA 30912, USA.
| | | | - Ghassan M Saed
- Department of Obstetrics and Gynecology, The C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI 48201, USA.
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Natarajan S, Ponde CK, Rajani RM, Ashavaid TF. Association of CYBA G640A variation with coronary artery disease in Indians. Biomarkers 2016; 21:708-715. [PMID: 27098216 DOI: 10.3109/1354750x.2016.1172114] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
INTRODUCTION Oxidative stress induces atherosclerosis by triggering an inflammatory cascade within the vascular wall. OBJECTIVE To investigate the role of pro-oxidant and antioxidant gene variations with CAD in Indian subjects. MATERIALS & METHODS It's a case-control study and genotyping for the variants MPO G-463A, CYBA G640A, SOD2 Val16Ala and CAT C-262T were performed by conventional PCR techniques. RESULTS Only CYBA G640A variant allele was found to be significantly (p = 0.0075) associated with CAD. CONCLUSION Although CYBA G640A variation was found to be significant, a larger study is needed to validate these results and establish its role as a biomarker.
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Affiliation(s)
- Sripriya Natarajan
- a Research Laboratories , P.D. Hinduja Hospital & MRC , Mumbai , Maharashtra , India
| | | | - Rajesh M Rajani
- b Department of Medicine , P. D. Hinduja Hospital & MRC , Mumbai , Maharashtra , India
| | - Tester F Ashavaid
- a Research Laboratories , P.D. Hinduja Hospital & MRC , Mumbai , Maharashtra , India.,c Department of Lab Medicine , P. D. Hinduja Hospital & MRC, Department of Lab Medicine , Mumbai , Maharashtra , India
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Hu P, Huang MY, Hu XY, Xie XJ, Xiang MX, Liu XB, Wang JA. Meta-analysis of C242T polymorphism in CYBA genes: risk of acute coronary syndrome is lower in Asians but not in Caucasians. J Zhejiang Univ Sci B 2016; 16:370-9. [PMID: 25990054 DOI: 10.1631/jzus.b1400241] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
BACKGROUND A lot of studies have demonstrated that C242T polymorphism in CYBA genes may play an important role in the pathological process of acute coronary syndrome (ACS). However, the results are not consistent. To further evaluate this debate, we performed a meta-analysis to determine the relationship between C242T polymorphism and ACS. METHODS AND RESULTS We screened PubMed/MEDLINE, EBSCIO, and EMBASE research reports until Mar. 2014 and extracted data from 10 studies involving 6102 ACS patients and 8669 controls. Subgroup analysis by ethnicity documented a significant decreased risk of ACS for C242T polymorphism in the Asian population under allelic comparison (odd ratio (OR) 0.73; 95% confidence intervals (CI) 0.64-0.83), dominant model (OR 0.71; 95% CI 0.62-0.82), and homozygote comparison (OR 0.57; 95% CI 0.35-0.92). However, in the overall population and especially with Caucasians, no significant association was uncovered. Further meta-regression analysis revealed that the heterogeneity among studies was largely attributed to ethnicity. No publication bias was detected through a funnel plot and an Egger's linear regression test. CONCLUSIONS Taken together, our results suggest that the C242T polymorphism might be a protective factor against developing ACS in the Asian population. Further researches will be needed to identify the confounding factors which modified the protective effect of T allele among Caucasians.
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Affiliation(s)
- Po Hu
- Key Laboratory for Diagnosis and Treatment of Cardiovascular Disease of Zhejiang Province, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China; Department of Cardiology, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China
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Relationship between C242T polymorphism and arterial stiffness in an apparently healthy population. J Hum Hypertens 2015; 30:488-92. [PMID: 26467818 DOI: 10.1038/jhh.2015.108] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Revised: 08/20/2015] [Accepted: 09/14/2015] [Indexed: 11/08/2022]
Abstract
Superoxide production is modulated by the C242T polymorphism of the CYBA gene. A major source of the superoxide anion that contributes to arterial stiffness is oxidase. We investigated the relationship between the C242T polymorphism and brachial-ankle pulse wave velocity (baPWV) in an apparently healthy population, while controlling for the amount of consumed cigarette. We measured baPWV non-invasively, recorded the detailed history of smoking and genotyped the C242T polymorphism in 856 participants. The CC genotype was related to a higher value of baPWV than the CT/TT genotype (1438.7±11.9 vs 1371.0±32.4 cm s(-1), β=-0.069, P=0.03) after adjustment for covariates. Further investigation showed an interaction between C242T polymorphism and smoking status with respect to baPWV (P<0.0001). For smokers, the CC genotype of C242T polymorphism was correlated with higher baPWV values compared with CT/TT genotype (1344.2±17.4 vs 1126.8±22.5 cm s(-1), β=-0.279, P<0.0001), whereas this relationship in the non-smokers was not significant (1485.5±15.1 vs 1499.0±41.5 cm s(-1), β=0.027, P=0.48). Additionally, for smokers who smoked at least 180 cigarette-years, the CC genotype participants showed higher values of baPWV compared with CT/TT polymorphism carriers (P⩽0.011). Our findings suggest that the C242T gene polymorphism is associated with arterial stiffness. Additionally, this relationship could be modified by smoking dose.
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Salahuddin S, Prabhakaran D, Roy A. Pathophysiological Mechanisms of Tobacco-Related CVD. Glob Heart 2015; 7:113-20. [PMID: 25691307 DOI: 10.1016/j.gheart.2012.05.003] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2012] [Accepted: 05/15/2012] [Indexed: 12/15/2022] Open
Abstract
Cigarette smoking is a leading preventable risk factor for the development and progression of cardiovascular diseases (CVDs). Epidemiologic studies conclusively prove that both active smoking and secondhand smoke contribute significantly to morbidity and mortality related to CVD. Cigarette smoke is a mixture of several toxic chemicals, of which nicotine, carbon monoxide, and oxidant chemicals are most commonly implicated in the pathogenesis of cardiovascular disease. Tobacco causes endothelial dysfunction, inflammation, insulin resistance, alteration of lipid profile, hemodynamic alterations, and a hypercoagulable state. All of these act synergistically as pathobiologic mechanisms of atherothrombosis in tobacco users.
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Affiliation(s)
- Salman Salahuddin
- Department of Cardiology, Cardiothoracic Sciences Centre, All India Institute of Medical Sciences, New Delhi, India
| | - Dorairaj Prabhakaran
- Centre for Chronic Disease Control and Director, Center of Excellence in Cardio-metabolic Risk Reduction in South Asia, Public Health Foundation of India, New Delhi, India
| | - Ambuj Roy
- Department of Cardiology, Cardiothoracic Sciences Centre, All India Institute of Medical Sciences, New Delhi, India
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Bushueva OY, Stetskaya TA, Polonikov AV, Ivanov VP. The relationship between polymorphism 640A>G of the CYBA gene with the risk of ischemic stroke in the population of the Central Russia. Zh Nevrol Psikhiatr Im S S Korsakova 2015; 115:38. [DOI: 10.17116/jnevro20151159238-41] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2024]
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Xu Q, Yuan F, Shen X, Wen H, Li W, Cheng B, Wu J. Polymorphisms of C242T and A640G in CYBA gene and the risk of coronary artery disease: a meta-analysis. PLoS One 2014; 9:e84251. [PMID: 24392120 PMCID: PMC3879292 DOI: 10.1371/journal.pone.0084251] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background Coronary artery disease (CAD) is a leading cause of mortality in many countries. Considerable studies have been carried out to investigate the relationship between the C242T and A640G polymorphisms of CYBA gene and CAD, but the results were still inconsistent. Hence we conducted a meta-analysis to clarify the association. Methods and Results A total of 21 eligible literatures were included in the meta-analysis. We observed a significant decreased risk of CAD for C242T polymorphism in Asian population under an allelic model (OR 0.75; 95% CI 0.67–0.84) and a dominant model (OR 0.69; 95% CI 0.61–0.79), however, in overall population and other population no significant association was revealed. We also found A640G polymorphism may contribute to reducing CAD risk under an allelic model (OR 0.84; 95% CI 0.75–0.93), dominant model (OR0.77; 95% CI 0.64–0.92) and recessive model (OR0.82; 95% CI 0.69–0.97). No publication bias was found. Conclusion Our meta-analysis confirmed a protective effect of C242Tpolymorphism on CAD in Asian population and indicated that A640G polymorphism was significantly associated with decreased risk of CAD.
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Affiliation(s)
- Qiumei Xu
- Department of Gerontology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Fangfen Yuan
- Key Laboratory of Environment and Health, Ministry of Education & Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xuemei Shen
- Key Laboratory of Environment and Health, Ministry of Education & Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hui Wen
- Department of Gerontology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Li
- Department of Gerontology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bei Cheng
- Department of Gerontology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jing Wu
- Key Laboratory of Environment and Health, Ministry of Education & Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- * E-mail:
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Liang B, Wei Q, Shen T, Su L, Yan Y, Wu G, Lu J, Gu L. The A640G polymorphism in the NAD(P)H oxidase p22phox gene (CYBA) is associated with risk reduction of coronary heart disease: a meta-analysis. Clin Biochem 2013; 47:409-16. [PMID: 24345348 DOI: 10.1016/j.clinbiochem.2013.12.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Revised: 11/24/2013] [Accepted: 12/03/2013] [Indexed: 11/30/2022]
Abstract
BACKGROUND Recently, studies have focused on the association between the p22phox gene A640G polymorphism and coronary heart disease (CHD). However, the results are inconsistent. In this study, we aimed to further evaluate this association by using meta-analysis. METHODS The PubMed, Embase, CBM, CNKI, WanFang and Chongqing VIP databases were searched for relevant articles. Hardy-Weinberg equilibrium (HWE) of the distribution of genotypes was tested using Pearson's chi-squared test. Odds ratios (ORs) with the corresponding 95% confidence intervals (CIs) were used to assess the strength of the association; Cochran's Q test and the I(2) statistic were used to evaluate heterogeneity. The random effects model and the fixed effects model were used according to heterogeneity; Begg's test and Egger's test were used to analyze publication bias. Sensitivity analysis was carried out to guarantee the stability of the results. Cumulative analysis was used to evaluate tendencies in the pooled OR. RESULTS A total of eight articles including 3904 CHD cases and 3498 controls were included. A significant association between the A640G polymorphism and CHD was observed in codominant model 2 (AG versus AA: OR=0.86, 95% CI: 0.77-0.96). In the subgroup analysis, a significant association was observed between the A640G polymorphism and CHD in Caucasians, and in PB (population-based), non-PB, HWE (studies followed HWE) and non-HWE studies. CONCLUSIONS Our results reveal that the A640G polymorphism may play a protective role in CHD.
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Affiliation(s)
- Baoyun Liang
- First Affiliated Hospital, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Qiugui Wei
- First Affiliated Hospital, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Tingting Shen
- First Affiliated Hospital, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Li Su
- School of Public Health of Guangxi Medical University, Nanning, Guangxi, China
| | - Yan Yan
- First Affiliated Hospital, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Guangliang Wu
- First Affiliated Hospital, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Jianqi Lu
- First Affiliated Hospital, Guangxi University of Chinese Medicine, Nanning, Guangxi, China.
| | - Lian Gu
- First Affiliated Hospital, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
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Wu Z, Lou Y, Jin W, Liu Y, Lu L, Chen Q, Xie Y, Lu G. Relationship of the p22phox (CYBA) gene polymorphism C242T with risk of coronary artery disease: a meta-analysis. PLoS One 2013; 8:e70885. [PMID: 24039708 PMCID: PMC3764124 DOI: 10.1371/journal.pone.0070885] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2013] [Accepted: 06/24/2013] [Indexed: 12/23/2022] Open
Abstract
Background Observational and experimental studies have thus far been unable to resolve whether the CYBA C242T polymorphism is associated with coronary artery disease (CAD). Therefore, we undertook a comprehensive meta-analysis to more precisely evaluate the influence of this polymorphism on CAD and potential biases. Methods We screened MEDLINE, Embase, CNKI, Wanfang and CBM up to January 2013 and extracted data from 22 studies with 9,279 CAD patients and 9,349 controls. A random-effects model was exploited to synthesize the inconsistent outcomes of the individual studies, while addressing between-study heterogeneity and publication bias. Results The CYBA C242T polymorphism conformed to Hard-Weinberg Equilibrium for all studies (P>0.05). Overall comparison of the T allele with the C allele produced a non-significant risk estimate for CAD but with striking heterogeneity (T versus C: P = 0.87, OR = 0.99, 95%CI 0.89–1.11, Pheterogeneity<0.0001, I2 = 67.8%). However, subgroup analysis by ethnicity documented that the T allele carriers had a marginal risk increase (21%) of CAD among Caucasians (recessive genetic model: P = 0.05, 95%CI 1.00–1.46, Pheterogeneity = 0.15, I2 = 29.1%). Then data were divided into study design, the significance of CAD risk increase was substantially strengthened in matched case-control studies (allele comparison: P = 0.02, OR = 1.13, 95%CI 1.02–1.26, Pheterogeneity = 0.24, I2 = 21.6%).Further meta-regression analysis identified that a large proportion of heterogeneity was explained by body mass index (BMI) (P = 0.03, OR = 1.07, 95%CI 1.01–1.15) and study design (P = 0.03, OR = 1.30, 95%CI 1.02–1.64).There was no obvious publication bias as verified by funnel plot and Egger's linear regression test (t = −0.25, P = 0.81 for allele comparison). Conclusion Taken together, our results suggested the CYBA C242T polymorphism might be a risk-conferring factor on developing CAD and BMI and study design were probable sources of between-study heterogeneity.
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Affiliation(s)
- Zhijun Wu
- Department of Cardiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Lepetsos P, Pampanos A, Lallos S, Kanavakis E, Korres D, Papavassiliou AG, Efstathopoulos N. Association of NADPH oxidase p22phox gene C242T, A640G and -930A/G polymorphisms with primary knee osteoarthritis in the Greek population. Mol Biol Rep 2013; 40:5491-9. [PMID: 23922196 DOI: 10.1007/s11033-013-2649-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Accepted: 07/31/2013] [Indexed: 10/26/2022]
Abstract
Osteoarthritis (OA) is the most common form of arthritis with still unknown pathogenic etiology and considerable contribution of genetic factors. Recently, a new emerging role of oxidative stress in the pathology of OA has been reported, lacking however elucidation of the underlying mechanism. Nicotinamide adenine dinucleotide phosphate (NADPH) oxidase being a complex enzyme produced by chondrocytes, presents the major source of reactive oxygen species and main contributor of increased oxidative stress. The present study aims to evaluate the association of NADPH oxidase p22phox gene C242T, A640G and -A930G polymorphisms with primary knee OA in the Greek population. One hundred fifty five patients with primary symptomatic knee OA participated in the study along with 139 matched controls. Genotypes were determined using polymerase chain reaction and restriction fragment length polymorphism technique. Allelic and genotypic frequencies were compared between both study groups. NADPH p22phox -A930G polymorphism was significantly associated with knee OA in the crude analysis (P = 0.018). No significant difference was detected for C242T and A640G polymorphisms (P > 0.05). The association between -A930G polymorphism and knee OA disappeared when the results were adjusted for obesity (P = 0.078, odds ratio 0.54, 95 % CI 0.272-1.071). The interaction between all three polymorphisms was not significant. The present study shows that NADPH oxidase p22phox gene C242T, A640G and -A930G polymorphisms are not risk factors for knee OA susceptibility in the Greek population. Further studies are needed to give a global view of the importance of this polymorphism in the pathogenesis of OA.
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Affiliation(s)
- Panagiotis Lepetsos
- 2nd Department of Trauma & Orthopaedics, "Agia Olga" Hospital, University of Athens Medical School, N. Ionia, 14233, Athens, Greece.
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15
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Zheykova TV, Golubenko MV, Buikin SV, Botkina OY, Tsimbaliuk IV, Maksimov VN, Voevoda MI, Puzyrev VP. Association between 242C>T polymorphism of NADPH oxidase p22phox gene (CYBA) and longevity in Russian population. RUSS J GENET+ 2013. [DOI: 10.1134/s1022795413020130] [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]
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Ge J, Ding Z, Song Y, Wang F. Smoking dose modifies the association between C242T polymorphism and prevalence of metabolic syndrome in a Chinese population. PLoS One 2012; 7:e31926. [PMID: 22396743 PMCID: PMC3291574 DOI: 10.1371/journal.pone.0031926] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2011] [Accepted: 01/20/2012] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND The C242T polymorphism of the CYBA gene that encodes p22phox, a component of NADPH oxidase, has been found to modulate superoxide production. Oxidase is a major source of the superoxide anion that contributes to individual components of metabolic syndrome. We examined the relationship of the C242T polymorphism with the prevalence of metabolic syndrome in a Chinese population, taking account of consumed cigarette amounts. METHODOLOGY/PRINCIPAL FINDINGS In 870 participants, we collected biomarkers related to metabolic syndrome and detailed history of smoking and genotyped the C242T polymorphisms. After adjustment for covariates, the CT/TT genotypes were associated with a lower risk of metabolic syndrome (P = 0.0008). The odds of having metabolic syndrome in the CT/TT participants were 0.439 (95%CI: 0.265, 0.726), while for CC participants the odds were 1.110 (95%CI: 0.904, 1.362). There was significant (P = 0.014) interaction between the C242T polymorphism and smoking status in relation to the prevalence of metabolic syndrome. For smokers who smoke no less than 25 pack-years, those with CT/TT genotypes had lower risk of metabolic syndrome as compared with CC polymorphism carriers (P = 0.015). In the multiple regression analysis, the CT/TT genotypes were significantly associated with lower serum concentration of triglycerides both in all subjects and smokers; furthermore, the CT/TT genotypes were also related to smaller waist circumference in smokers. CONCLUSIONS Our study suggests that the C242T gene polymorphism is indeed related to the prevalence of metabolic syndrome and smoking dose might modify this association.
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Affiliation(s)
| | - Zhijian Ding
- Department of Cardiology, Changzhou Second People's Hospital, Affiliated Nanjing Medical University, Changzhou, China
- * E-mail:
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Physical activity modifies the association between CYBA gene polymorphisms and small artery elasticity in a Chinese population. Hypertens Res 2012; 35:739-44. [PMID: 22357521 DOI: 10.1038/hr.2012.23] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Emerging evidence suggests that increased superoxide production is responsible for a significant proportion of endothelial dysfunction. The relationship between variants of the CYBA gene and cardiovascular diseases is currently debated. In the present study, we investigated the influence of CYBA polymorphisms (rs1049255 and rs7195830) on arterial elasticity in a Chinese population. In the 2178 participants enrolled in the GaoYou study, we measured large artery elasticity (C1) and small artery elasticity (C2) non-invasively, genotyped the CYBA polymorphisms and calculated energy expenditure. The AA genotype of the rs1049255 polymorphism was associated with a lower C2 than were the GG/AG genotypes (5.31±0.11 vs. 5.52±0.06 ml mm Hg(-1) × 100; P=0.01). Further analyses revealed an interaction between CYBA polymorphisms and physical activity with respect to C2 (P=0.007 for rs1049255 and P=0.038 for rs7195830). In less physically active participants, the AA genotype of the rs1049255 polymorphism was associated with a significantly lower C2 than the GG/AG genotypes (4.69±0.16 vs. 5.26±0.19 ml mm Hg(-1) × 100; P=0.008). In physically active participants, the GG/AG genotypes of rs7195830 polymorphism were correlated with higher C2 values than the AA genotype (5.84±0.08 vs. 5.08±0.32 ml mm Hg(-1) × 100; P=0.049). Haplotype analyses revealed higher C2 values in rs1049255G-rs7195830G carriers (P=0.0015). In conclusion, the rs1049255 and rs7195830 polymorphisms of the CYBA gene were associated with C2 in a Chinese population; physical activity could modify this genetic effect.
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Niemiec P, Nowak T, Balcerzyk A, Krauze J, Zak I. The CYBA gene A640G polymorphism influences predispositions to coronary artery disease through interactions with cigarette smoking and hypercholesterolemia. Biomarkers 2011; 16:405-12. [PMID: 21777168 DOI: 10.3109/1354750x.2011.580368] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The CYBA gene encodes the p22phox peptide, an essential subunit of vascular NADPH oxidases. The aim of the study was to analyze potential interactions between CYBA gene A640G polymorphism and traditional risk factors of atherosclerosis. We studied 320 subjects: 160 patients with coronary artery disease (CAD) and 160 controls. The results of interactions were interpreted on the basis of synergy index values (SI, SIM). The 640G allele interacted with cigarette smoking (SI = 2.02, SIM = 2.32). Even greater increase of the CAD risk was found whenever the 640G allele interacted with both smoking and hypercholesterolemia (SI = 2.70, SIM = 3.60). The results suggest that the A640G polymorphism may influence individual predispositions to CAD through interactions with smoking and hypercholesterolemia.
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Affiliation(s)
- Pawel Niemiec
- Department of Biochemistry and Medical Genetics, Medical University of Silesia, School of Health Care, Katowice, Poland.
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The C242T polymorphism of the gene encoding cytochrome b-245 alpha is not associated with paediatric ischaemic stroke: family-based and case-control study. Neurol Neurochir Pol 2011; 44:453-8. [PMID: 21082491 DOI: 10.1016/s0028-3843(14)60135-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
BACKGROUND AND PURPOSE Reactive oxygen species play an important role in the physiology and pathology of cerebral arteries, including ischaemic stroke. The cytochrome b-245 alpha gene (CYBA) encodes cytochrome b-245 alpha light chain (p22phox peptide), a critical element of NAD(P)H oxidases, the most important source of superoxide anion in the cerebral arteries. To search for genetic factors associated with paediatric ischaemic stroke, the possible association between CYBA gene C242T polymorphism and the disease was evaluated. MATERIAL AND METHODS The study group consisted of 238 individuals: children with ischaemic stroke (n = 70), their biological parents (n = 118) and children without any symptoms of stroke (n = 50). The C242T polymorphism was genotyped using polymerase chain reaction - restriction fragment length methodology. To evaluate the possible association between polymorphism and stroke, the transmission disequilibrium test and the case-control method were applied. RESULTS The C242 allele was transmitted more frequently than 242T (62.2% vs. 37.8%) but observed frequencies did not differ significantly from expected (p = 0.10). There were also no significant differences in allele and genotype distribution between patients and control subjects (patients: CC - 50.0%, CT - 38.6%, TT - 11.4% vs. controls: CC - 52.0%, CT - 36.0%, TT - 12.0%). CONCLUSIONS The study did not show that the C242T polymorphism of the CYBA gene is a risk factor of ischaemic stroke in children.
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Association of the CYBA, PPARGC1A, PPARG3, and PPARD gene variants with coronary artery disease and metabolic risk factors of coronary atherosclerosis in a Russian population. Heart Vessels 2010; 25:229-36. [PMID: 20512451 DOI: 10.1007/s00380-009-1159-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2008] [Accepted: 03/09/2009] [Indexed: 01/10/2023]
Abstract
Abnormalities in lipid metabolism and enhanced oxidative stress are considered as major risk factors for coronary atherosclerosis. Functional genetic variations in genes whose products are involved in lipid metabolism and antioxidant defense could therefore modulate risk of coronary artery disease (CAD). In this study, we evaluate whether the PPARGC1A Gly482Ser, PPARG3 (-681)C/G, PPARD +294T/C, and CYBA +242C/T gene variants confer the risk of CAD in a Russian population. A total of 313 CAD patients and 132 controls with no clinical sign of CAD were studied. The polymorphic markers were tested using a TaqMan assay. Allele and genotype frequencies in CAD patients and controls were compared using the Yates chi(2) test. Association of the genetic markers with metabolic risk factors of arterial atherosclerosis was studied using the analysis of variance test and then adjusted for conventional risk factors in the multiple regression analysis. For CYBA +242C/T, both the allele T and genotype T/T showed significant association with higher risk of CAD (odds ratio =1.49 and 3.89, respectively). The allele C and genotype C/C of the +294T/C marker of PPARD were associated with increased risk of CAD providing an odds ratio of 2.12 and 2.78, respectively. The risk variants of CYBA +242C/T and PPARD +294T/C markers were associated with higher low-density lipoprotein cholesterol and increased total serum cholesterol, respectively. In conclusion, the CYBA +242C/T and PPARD +294T/C variants modulate risk of CAD through their associations with atherogenic serum lipid profiles.
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The effect of p22(phox) -930A/G, A640G and C242T polymorphisms of NADPH oxidase on peripheral and central pressures in healthy, normotensive individuals. Hypertens Res 2010; 33:814-8. [PMID: 20505675 DOI: 10.1038/hr.2010.78] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The nicotinamide adenine dinucleotide phosphate (NADPH) oxidase produces superoxide, thus regulating redox state in the vessel wall. Three single-nucleotide polymorphisms (SNPs; -930A/G, A640G and C242T) of the p22(phox) subunit have been associated with hypertension; however, their role in peripheral and central pressures in normotensive individuals has not been addressed. A total of 210 healthy, normotensive individuals were studied. Genotypes for the -930A/G, A640G and C242T polymorphisms were determined by polymerase chain reaction. Peripheral pressures were measured by mercury sphygmomanometer and aortic pressures by a validated device using applanation tonometry. Both peripheral and central pressures differed across -930A/G genotypes. G allele carriers showed higher levels of peripheral systolic blood pressure (PSBP; AA: 113+/-12, GG/AG: 119+/-12 mm Hg; P<0.01) and peripheral diastolic blood pressure (AA: 70+/-9, GG/AG: 73+/-10 mm Hg; P<0.05). Regarding central pressures, AA homozygotes had lower central systolic blood pressure (CSBP; AA: 103+/-12, GG/AG: 108+/-12 mm Hg; P<0.01) and central diastolic blood pressure (AA: 71+/-9, GG/AG: 74+/-10 mm Hg; P<0.05). In multiple linear regression analysis, presence of the G allele (AG or GG) independently predicted CSBP. Blood pressure levels did not differ across A640G and C242T genotypes. The -930A/G polymorphism of p22(phox) is a determinant of peripheral and central pressures in normotensive individuals. The G allele is associated with higher blood pressure in the brachial artery, as well as in the aorta. These findings further elucidate the role of this polymorphism in the regulation of blood pressure. In contrast, the A640G and C242T SNPs do not influence peripheral and central pressures in normotensives.
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Hoffmann M, Schirmer MA, Tzvetkov MV, Kreuz M, Ziepert M, Wojnowski L, Kube D, Pfreundschuh M, Trümper L, Loeffler M, Brockmöller J. A functional polymorphism in the NAD(P)H oxidase subunit CYBA is related to gene expression, enzyme activity, and outcome in non-Hodgkin lymphoma. Cancer Res 2010; 70:2328-38. [PMID: 20215507 DOI: 10.1158/0008-5472.can-09-2388] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
NAD(P)H oxidase is a major endogenous source of reactive oxygen species (ROS). ROS may not only be involved in carcinogenesis but also in efficacy of chemotherapeutic agents like doxorubicin. By a comprehensive genotyping approach covering 48 genetic polymorphisms (single-nucleotide polymorphisms) in five subunits of phagocytic NAD(P)H oxidase, we asked whether they affect gene expression, enzymatic activity, and outcome of CHO(E)P chemotherapy. A highly consistent effect was observed for the CYBA 640A>G variant. In peripheral blood granulocytes of 125 healthy volunteers, the G allele of 640A>G was associated with lower NAD(P)H oxidase activity (P = 0.006). Moreover, the G allele was associated with lower mRNA and protein expression (both P = 0.02). Of clinical importance, the outcome of patients suffering from non-Hodgkin lymphoma and treated with CHO(E)P regimen was dependent on the CYBA 640A>G polymorphism. In an exploratory study (n = 401), carriers of 640GG had an event-free survival (EFS) risk ratio of 1.95 [95% confidence interval (95% CI), 1.31-2.90; P = 0.001] compared with 640AA. In a confirmatory set (n = 477), the risk ratios were 1.53 (1.04-2.25, P = 0.03). The complete set of 878 patients showed a relative risk of 1.72 (1.30-2.26) and 1.59 (1.14-2.21) for EFS and overall survival, respectively. Further molecular-biological experiments showed lower expression and reduced stability of transcripts with the G allele in lymphoblastoid cell lines. Transfection of allele-specific plasmids into HEK293 cells elicited lower activity for the G allele in a luciferase reporter gene construct. Thus, CYBA 640A>G was shown to be a functional polymorphism with possible consequences for patients receiving CHO(E)P chemotherapy and might have further implications for other ROS-mediated modalities.
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Affiliation(s)
- Marion Hoffmann
- Department of Clinical Pharmacology and Department of Hematology and Oncology, Georg-August-University Göttingen, Göttingen, Germany
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Fang S, Wang L, Jia C. Association of p22phox gene C242T polymorphism with coronary artery disease: a meta-analysis. Thromb Res 2010; 125:e197-201. [PMID: 20100625 DOI: 10.1016/j.thromres.2010.01.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2009] [Revised: 12/20/2009] [Accepted: 01/05/2010] [Indexed: 11/27/2022]
Abstract
INTRODUCTION The C242T polymorphism of p22phox gene (rs4673) has been linked to the reduced coronary artery disease (CAD) risk, but results in the published literatures are controversial. A meta-analysis was performed to assess the effect of this polymorphism on the CAD risk. METHODS A comprehensive search was conducted to identify all studies on the association of p22phox gene C242T polymorphism with CAD risk. The fixed or random effect pooled measure was selected based on the homogeneity test among studies. Heterogeneity among studies was evaluated using Q test and the I(2) of Higgins and Thompson. Meta-regression was used to explore the sources of between-study heterogeneity. Publication bias was estimated using modified Egger's linear regression test proposed by Harbord etal. RESULTS We identified 15 published articles including 6273 CAD cases and 5045 controls. In this studied overall and non-Asian populations, we didn't found any significant association of p22phox gene C242T polymorphism with CAD in any of codominant, dominant, and recessive models. Only in Asian population, both fixed effect model (FEM) and random effect model (REM) indicated the significant protective effect both in codominant (FEM: OR=0.771, 95%CI: 0.681-0.873; REM: OR=0.751, 95%CI: 0.607-0.930) and dominant (FEM: OR=0.714, 95%CI: 0.621-0.822; REM: OR=0.694, 95%CI: 0.538-0.895) models with strong evidence for between-study heterogeneity (I(2)=52.6% for codominant and I(2)=56.5% for dominant), but not in recessive model. No evidence of publication bias was detected. CONCLUSIONS The results suggested a significant heterogeneity across ethnicities about the relationship between the T allele of p22phox gene C242T polymorphism and reduced CAD risk, with a significant protective effect only in Asian population that needs to be confirmed by further studies.
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Affiliation(s)
- Shengxia Fang
- Department of Epidemiology and Health Statistics, Shandong University, PR China
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Bedard K, Attar H, Bonnefont JÃ, Jaquet V, Borel C, Plastre O, Stasia MJ, Antonarakis SE, Krause KH. Three common polymorphisms in theCYBAgene form a haplotype associated with decreased ROS generation. Hum Mutat 2009; 30:1123-33. [DOI: 10.1002/humu.21029] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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