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Wagner MA, Koleck TA, Conway A, Bender CM, Conley YP. Variability of DNA Repair and Oxidative Stress Genes Associated with Worst Pain in Breast Cancer Survivors on Aromatase Inhibitors. Genes (Basel) 2023; 14:2031. [PMID: 38002974 PMCID: PMC10671149 DOI: 10.3390/genes14112031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 10/24/2023] [Accepted: 10/30/2023] [Indexed: 11/26/2023] Open
Abstract
Pain is a problem affecting women with breast cancer (HR+BrCa) receiving aromatase inhibitor (AI) therapy. We investigated the relationship between single-nucleotide polymorphisms (SNPs) in DNA repair and oxidative stress genes and perceived worst pain after 6 months of AI therapy. We explored 39 SNPs in genes involved in DNA repair (ERCC2, ERCC3, ERCC5, and PARP1) and oxidative stress (CAT, GPX1, SEPP1, SOD1, and SOD2) in women with HR+BrCa receiving adjuvant therapy (AI ± chemotherapy; n = 138). Pain was assessed via the Brief Pain Inventory. Hurdle regression was used to evaluate the relationship between each associated allele and (1) the probability of pain and (2) the severity of worst pain. ERCC2rs50872 and ERCC5rs11069498 were associated with the probability of pain and had a significant genetic risk score (GRS) model (p = 0.003). ERCC2rs50872, ERCC5rs11069498, ERCC5rs4771436, ERCC5rs4150360, PARP1rs3219058, and SEPP1rs230819 were associated with the severity of worst pain, with a significant GRS model (conditional mean estimate = 0.45; 95% CI = 0.29, 0.60; p < 0.001). These results suggest DNA repair and oxidative stress pathways may play a role in the probability of pain and the severity of worst pain. As healthcare delivery moves towards the model of precision healthcare, nurses may, in the future, be able to use these results to tailor patient care based on GRS.
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Affiliation(s)
- Monica A. Wagner
- Frances Payne Bolton School of Nursing, Case Western Reserve University, Cleveland, OH 44106, USA;
| | - Theresa A. Koleck
- School of Nursing, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Alex Conway
- School of Nursing, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | | | - Yvette P. Conley
- School of Nursing, University of Pittsburgh, Pittsburgh, PA 15260, USA
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Lyu C, Sun Y. Immunometabolism in the pathogenesis of vitiligo. Front Immunol 2022; 13:1055958. [PMID: 36439174 PMCID: PMC9684661 DOI: 10.3389/fimmu.2022.1055958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 10/24/2022] [Indexed: 01/25/2023] Open
Abstract
Vitiligo is a common depigmenting skin disorder characterized by the selective loss of melanocytes. Autoimmunity, genetic, environmental, and biochemical etiology have been proposed in vitiligo pathogenesis. However, the exact molecular mechanisms of vitiligo development and progression are unclear, particularly for immunometabolism. Sporadic studies have suggested mitochondrial dysfunction, enhanced oxidative stress, and specific defects in other metabolic pathways can promote dysregulation of innate and adaptive immune responses in vitiligo. These abnormalities appear to be driven by genetic and epigenetic factors modulated by stochastic events. In addition, glucose and lipid abnormalities in metabolism have been associated with vitiligo. Specific skin cell populations are also involved in the critical role of dysregulation of metabolic pathways, including melanocytes, keratinocytes, and tissue-resident memory T cells in vitiligo pathogenesis. Novel therapeutic treatments are also raised based on the abnormalities of immunometabolism. This review summarizes the current knowledge on immunometabolism reprogramming in the pathogenesis of vitiligo and novel treatment options.
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Pavlovschi E, Borovic D, Pantea V, Tagadiuc O. Tear And Serum Superoxide Dismutase And Catalase Activities In Hypertensive Retinopathy. RUSSIAN OPEN MEDICAL JOURNAL 2021. [DOI: 10.15275/rusomj.2021.0305] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
The objective was to determine the changes in SOD and catalase activity, markers of oxidative stress/antioxidant balance in serum and tear of patients with hypertensive retinopathy and to identify whether there was a correlation between their levels and HR degree of hypertensive retinopathy (HR). Material and Methods — 90 hypertensive patients were divided in three groups, according to the Keith-Wagener classification: GI-36, GII-35 and GIII-19. SOD was assessed using the Dubinina and Matyushin method and catalase according to Koroliuk, both in modification of Gudumac V. The results were presented by median and interquartile range. The groups were compared using Kruskal-Wallis and Mann-Whitney nonparametric tests, and the Spearman correlation coefficient was calculated (SPSS 23.0). Results — Showed a statistically significant difference of SOD in serum (p=0.035) and tear (p=0.027) between groups. SOD decreased from GI until GIII in serum (-8%, p=0.032) and tear (-16%, p=0.031). In addition, it showed a weak significant negative correlation with the HR degree both in serum (r=-0.246, p=0.019) and tear (r=-0.284, p=0.007), while the correlation attested between serum and tear SOD levels was significant moderate and positive (r=0.336, p=0.001). It was noted a significant catalase elevation in the tear (p=0.033). In serum it was not correlated with HR degree, while in tear showed a significant weak strength, positive correlation (r=0.261, p=0.013). No correlations were found between serum and tear catalase levels. Conclusion — A progressive significant decrease in SOD levels and a tendency to increase of catalase activity was identified as HR advanced both in serum and in tear. The enhancement in the severity of HR was correlated with decreased SOD activity in tear and serum and increased catalase level in tear.
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Affiliation(s)
- Ecaterina Pavlovschi
- Nicolae Testemitanu State University of Medicine and Pharmacy, Chisinau, Republic of Moldova
| | - Djina Borovic
- Ovisus Medical Private Center, Chisinau, Republic of Moldova
| | - Valeriana Pantea
- Nicolae Testemitanu State University of Medicine and Pharmacy, Chisinau, Republic of Moldova
| | - Olga Tagadiuc
- Nicolae Testemitanu State University of Medicine and Pharmacy, Chisinau, Republic of Moldova
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Ogino N, Nagaoka K, Tomizuka K, Matsuura-Harada Y, Eitoku M, Suganuma N, Ogino K. Compromised glutathione synthesis results in high susceptibility to acetaminophen hepatotoxicity in acatalasemic mice. Food Chem Toxicol 2021; 156:112509. [PMID: 34390818 DOI: 10.1016/j.fct.2021.112509] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 07/28/2021] [Accepted: 08/09/2021] [Indexed: 12/22/2022]
Abstract
Acatalasemia is caused by genetic defect in the catalase gene. Human achatalasemia patients are able to scavenge physiological hydrogen peroxide but are vulnerable to exogenous oxidative stress. In the present study, we used an acetaminophen-induced hepatotoxicity model in acatalasemic mice to explore this vulnerability. Interestingly, the acetaminophen-induced decrease in total glutathione levels was more prolonged in acatalasemic mice. While the subunits of glutamate-cysteine ligase, a glutathione synthase enzyme, were increased by acetaminophen in the liver of wild-type mice, their expression was lower and was further reduced by acetaminophen in acatalasemic mice. This feature was also observed in immortalized hepatocytes derived from the livers of these mice. However, when catalase was knocked down in HepG2 cells, a cultured human liver cell line, the expression of glutamate-cysteine ligase subunits was increased, suggesting that the low expression of glutamate-cysteine ligase subunits in acatalasemia may be due to other mechanism than catalase deficiency. Therefore, when other factors were investigated, it was found that transforming growth factor-β1 was up-regulated by acetaminophen in the liver of acatalasemic mice, which may inhibit the expression of glutamate-cysteine ligase subunits. The results of this study suggest a new toxic mechanism of acetaminophen-induced liver injury in patients with acatalasemia.
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Affiliation(s)
- Noriyoshi Ogino
- Department of Environmental Medicine, Kochi Medical School, Kohasu, Oko-cho, Nankoku City, Kochi, 783-8505, Japan; Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Iseigaoka 1-1, Yahatanishi-ku, Kitakyushu, 807-8555, Japan
| | - Kenjiro Nagaoka
- Laboratory of Hygienic Chemistry, College of Pharmaceutical Sciences, Matsuyama University, Matsuyama, Ehime, 790-8578, Japan
| | - Kotomi Tomizuka
- Department of Environmental Medicine, Kochi Medical School, Kohasu, Oko-cho, Nankoku City, Kochi, 783-8505, Japan
| | - Yuki Matsuura-Harada
- Department of Biofunction Imaging Analysis, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University,1-1-1 Tsushima Naka, Kita-ku, Okayama, 7008530, Japan
| | - Masamitsu Eitoku
- Department of Environmental Medicine, Kochi Medical School, Kohasu, Oko-cho, Nankoku City, Kochi, 783-8505, Japan
| | - Narufumi Suganuma
- Department of Environmental Medicine, Kochi Medical School, Kohasu, Oko-cho, Nankoku City, Kochi, 783-8505, Japan
| | - Keiki Ogino
- Department of Environmental Medicine, Kochi Medical School, Kohasu, Oko-cho, Nankoku City, Kochi, 783-8505, Japan.
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Association Analysis of Candidate Gene Polymorphisms and Audiometric Measures of Noise-Induced Hearing Loss in Young Musicians. Otol Neurotol 2021; 41:e538-e547. [PMID: 32176153 DOI: 10.1097/mao.0000000000002615] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
INTRODUCTION This study aimed to investigate the association between candidate genetic variants and audiometric measures of noise-induced hearing loss (NIHL) in young musicians. METHODS The study analyzed a database by Phillips et al. (Feasibility of a bilateral 4000-6000 Hz notch as a phenotype for genetic association analysis. Int J Audiol 2015;54:645-52.) which included behavioral hearing thresholds, distortion-product otoacoustic emissions (DPOAE), tympanometric, and genetic data of 166 participants meeting the inclusion criteria. Nineteen single nucleotide polymorphisms (SNPs) in 13 cochlear genes previously associated with NIHL in factory workers were included in the present investigation. The average hearing threshold at 3000 and 4000 Hz (AHT) and average DPOAE signal to noise ratio (DPOAE SNR) in both ears were calculated. RESULTS The regression analyses showed that two SNPs- one in KCNE1 (rs2070358) and the other in CAT (rs12273124) revealed a statistically significant relationship with DPOAE SNR in both ears. Two SNPs in MYH14 and one in GJB4 revealed a significant association with DPOAE SNR in the left ear. Two SNPs in HSP70, one in CDH23 and one in KCNJ10 showed significant association with DPOAE SNR in the right ear. None of the included SNPs showed association with AHT in both ears. CONCLUSIONS A genetic variant in KCNE1 was associated with the strength of the cochlear amplifier as assessed by DPOAE SNR. Musicians carrying causal genetic variants to NIHL might exhibit changes in their auditory functions early in the lifespan even when most subjects had their hearing thresholds within normal limits. These participants are likely to show the clinical manifestation of NIHL in the future if no preventive measures are applied.
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Liu B, Wang R, He Y. Functional Study of Polymorphism 1888 C>T in the Promoter Region of Human PLUNC Gene. Am J Med Sci 2020; 361:358-364. [PMID: 33722345 DOI: 10.1016/j.amjms.2020.06.018] [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: 01/14/2020] [Revised: 05/26/2020] [Accepted: 06/15/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND Our previous study showed that a single nucleotide polymorphisms (SNP) of 1888 C>T located at promoter region of human PLUNC gene might affect the susceptibility of nasopharyngeal carcinoma (NPC) in a Chinese population. This study aims to analyze the effect of the genetic variant on PLUNC promoter activity. MATERIALS AND METHODS The DNA fragments of the PLUNC promoter region including the SNP 1888 C>T were obtained by polymerase chain reaction (PCR). The recombinant plasmid of the fragment and the pGL3-Enhancer firefly luciferase reporter vector were cloned and identified. Relative luciferase activity (RLA) was measured and electrophoretic mobility shift assay (EMSA) was analyzed. RESULTS Luciferase reporter assays demonstrated that luciferase activity of the 1888 T-allele was significantly higher, compared with the C-allele. EMSA experiment proved that the PLUNC gene promoter region SNP 1888 TT genotype had the ability to bind the nucleus protein with the human NPC CEN2 cell, whereas the CC genotype had not. CONCLUSIONS SNP 1888 C>T in the promoter region of PLUNC gene might be a functional mutant locus, indicating that individuals carrying SNP 1888 C-C genotype might be more likely to develop NCP due to the reduced expression of the PLUNC gene. Further functional studies on PLUNC genetic variants are warranted to verify our findings.
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Affiliation(s)
- Beina Liu
- Department of Otolaryngology-Head and Neck Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Rong Wang
- Department of Otolaryngology-Head and Neck Surgery, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nangning, Guangxi, China
| | - Ying He
- Department of Otolaryngology-Head and Neck Surgery, Nanfang Hospital, Nanfang Medical University, Guangzhou, China.
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Role of Catalase in Oxidative Stress- and Age-Associated Degenerative Diseases. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:9613090. [PMID: 31827713 PMCID: PMC6885225 DOI: 10.1155/2019/9613090] [Citation(s) in RCA: 438] [Impact Index Per Article: 87.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 06/18/2019] [Accepted: 08/14/2019] [Indexed: 12/22/2022]
Abstract
Reactive species produced in the cell during normal cellular metabolism can chemically react with cellular biomolecules such as nucleic acids, proteins, and lipids, thereby causing their oxidative modifications leading to alterations in their compositions and potential damage to their cellular activities. Fortunately, cells have evolved several antioxidant defense mechanisms (as metabolites, vitamins, and enzymes) to neutralize or mitigate the harmful effect of reactive species and/or their byproducts. Any perturbation in the balance in the level of antioxidants and the reactive species results in a physiological condition called “oxidative stress.” A catalase is one of the crucial antioxidant enzymes that mitigates oxidative stress to a considerable extent by destroying cellular hydrogen peroxide to produce water and oxygen. Deficiency or malfunction of catalase is postulated to be related to the pathogenesis of many age-associated degenerative diseases like diabetes mellitus, hypertension, anemia, vitiligo, Alzheimer's disease, Parkinson's disease, bipolar disorder, cancer, and schizophrenia. Therefore, efforts are being undertaken in many laboratories to explore its use as a potential drug for the treatment of such diseases. This paper describes the direct and indirect involvement of deficiency and/or modification of catalase in the pathogenesis of some important diseases such as diabetes mellitus, Alzheimer's disease, Parkinson's disease, vitiligo, and acatalasemia. Details on the efforts exploring the potential treatment of these diseases using a catalase as a protein therapeutic agent have also been described.
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Cuevas S, Villar VAM, Jose PA. Genetic polymorphisms associated with reactive oxygen species and blood pressure regulation. THE PHARMACOGENOMICS JOURNAL 2019; 19:315-336. [PMID: 30723314 PMCID: PMC6650341 DOI: 10.1038/s41397-019-0082-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Revised: 10/19/2018] [Accepted: 12/21/2018] [Indexed: 02/08/2023]
Abstract
Hypertension is the most prevalent cause of cardiovascular disease and kidney failure, but only about 50% of patients achieve adequate blood pressure control, in part, due to inter-individual genetic variations in the response to antihypertensive medication. Significant strides have been made toward the understanding of the role of reactive oxygen species (ROS) in the regulation of the cardiovascular system. However, the role of ROS in human hypertension is still unclear. Polymorphisms of some genes involved in the regulation of ROS production are associated with hypertension, suggesting their potential influence on blood pressure control and response to antihypertensive medication. This review provides an update on the genes associated with the regulation of ROS production in hypertension and discusses the controversies on the use of antioxidants in the treatment of hypertension, including the antioxidant effects of antihypertensive drugs.
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Affiliation(s)
- Santiago Cuevas
- Center for Translational Science, Children's National Health System, 111 Michigan Avenue, NW, Washington, DC, 20010, USA.
| | - Van Anthony M Villar
- Department of Medicine, Division of Renal Diseases and Hypertension, The George Washington University School of Medicine and Health Sciences, Walter G. Ross Hall, Suite 738, 2300 I Street, NW, Washington, DC, 20052, USA
| | - Pedro A Jose
- Department of Medicine, Division of Renal Diseases and Hypertension, The George Washington University School of Medicine and Health Sciences, Walter G. Ross Hall, Suite 738, 2300 I Street, NW, Washington, DC, 20052, USA
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Salahshoor MR, Sohrabi M, Jalili F, Jalili P, Rezavand N, Haghnazari L, Jalili C. No evidence for a major effect of three common polymorphisms of the GPx1, MnSOD, and CAT genes on PCOS susceptibility. J Cell Biochem 2019; 120:2362-2369. [PMID: 30206965 DOI: 10.1002/jcb.27564] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 08/02/2018] [Indexed: 01/24/2023]
Abstract
AIM Polycystic ovary syndrome (PCOS) is one of the prevalent endocrine-metabolic disorders. It is proposed that oxidative stress contributes to PCOS susceptibility and its metabolic associations. The current study aimed to investigate the influence of GPx1 (rs1050450), MnSOD (rs4880), and Catalase (rs1001179) variants with PCOS susceptibility, for the first time. METHODS In a case-control study, 350 Kurdish female volunteers (175 PCOS patients and 175 healthy controls) from Western Iran were studied. Genotyping for GPx1 and MnSOD were done using PCR-RFLP and for CAT the allele-specific PCR method was used. RESULTS The percentage of patients suffering from hirsutism, acne, and acanthosis among patients with PCOS were 44.6%, 30.3%, and 14.9%, respectively. Distribution of alleles among patients suffering from PCOS versus healthy women was 'Pro' (69.1% vs 68.8%) and 'Leu' (31.4% vs 31.2%) for Gpx1, 'Ala' (61.43% vs 56.57%) and 'Val' (38.57% vs 43.43%) for MnSOD, and 'C' (83.43% vs 84.57%) and 'T' (16.57% vs 15.43%) for CAT. CONCLUSION GPx1 (rs1050450), MnSOD (rs4880), and CAT (rs1001179) variants might not be a risk factor for PCOS.
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Affiliation(s)
- Mohammad Reza Salahshoor
- Fertility and Infertility Research Center, Kermanshah University of Medical Sciences, Kermanshah, Kermanshah Province, Iran
| | - Maryam Sohrabi
- Fertility and Infertility Research Center, Kermanshah University of Medical Sciences, Kermanshah, Kermanshah Province, Iran
| | - Faramarz Jalili
- Students Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Kermanshah Province, Iran
| | - Parnian Jalili
- Students Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Kermanshah Province, Iran
| | - Negin Rezavand
- Department of Obstetrics and Gynaecology, Kermanshah University of Medical Sciences, Kermanshah, Kermanshah Province, Iran
| | - Lida Haghnazari
- Department of Biochemistry, Kermanshah University of Medical Sciences, Kermanshah, Kermanshah Province, Iran
| | - Cyrus Jalili
- Fertility and Infertility Research Center, Kermanshah University of Medical Sciences, Kermanshah, Kermanshah Province, Iran
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Catalase C-262T Polymorphism Is a Risk Factor for Valproic Acid–Induced Abnormal Liver Function in Chinese Patients With Epilepsy. Ther Drug Monit 2019; 41:91-96. [DOI: 10.1097/ftd.0000000000000574] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Yassaee F, Salimi S, Etemadi S, Yaghmaei M. Comparison of CAT-21A/T Gene Polymorphism in Women with Preeclampsia and Control Group. Adv Biomed Res 2018; 7:133. [PMID: 30464933 PMCID: PMC6206746 DOI: 10.4103/abr.abr_36_18] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Background: Preeclampsia (PE) is one of the main causes of maternal and perinatal mortality and morbidity. Evidence shows that oxidative stress plays an important role in the pathophysiology of the PE. As catalase is a key enzyme in antioxidant enzymatic defense which protects cell from oxidative damage, in this study, we aimed to investigate the relationship between CAT-21A/T (rs7943316) polymorphism and PE susceptibility. Materials and Methods: This case–control study was conducted on 155 PE women and 159 normotensive pregnant women. Polymerase chain reaction-restriction fragment length polymorphism method was used for genotyping. Results: There was no association between CAT-21AT and TT genotypes and PE susceptibility. However, the CAT-21A/T polymorphism was associated with 1.6-fold higher risk of PE in dominant model (AA vs. AT + TT) (odds ratio [OR] 1.6 [95% confidence interval [CI]: 0.9–2.9]; P = 0.04). However, the CAT-21A/T polymorphism was not associated with PE in recessive model (TT vs. AA + AT) (OR 1.3 [95% CI: 0.8–2.1]; P = 0.4). Conclusions: The CAT-21A/T polymorphism could be a risk factor for PE susceptibility in dominant model.
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Affiliation(s)
- Fakhrolmolouk Yassaee
- Preventive Gynecology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of OB and GYN, Medical School, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Saeedeh Salimi
- Department of Clinical Biochemistry, Cellular and Molecular Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Samaneh Etemadi
- Department of OB and GYN, Medical School, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Minoo Yaghmaei
- Preventive Gynecology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of OB and GYN, Medical School, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Eddaikra A, Amroun H, Raache R, Galleze A, Abdallah-Elhadj N, Azzouz M, Meçabih F, Mechti B, Abbadi MC, Touil-Boukoffa C, Attal N. Clinical variables and ethnicity may influenced by polymorphism of CAT -262C/T and MnSOD 47C/T antioxidant enzymes in Algerian type1 diabetes without complications. Gene 2018; 670:182-192. [PMID: 29859283 DOI: 10.1016/j.gene.2018.05.105] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 04/21/2018] [Accepted: 05/29/2018] [Indexed: 01/11/2023]
Abstract
The latest studies in Algeria show that the frequency of type 1 diabetes (T1D) without complications is lower than that with complications and represents a significant burden in terms of cost and treatment. For this reason, we are interested in uncomplicated type1 diabetes and risk factors that are related to polymorphisms of antioxidant enzymes in order to prevent its complications. A total of 260 blood samples of young Algerian adults were examined. The genotypic analysis of Catalase gene (CAT -262C/T, rs1001179) and the superoxide dismutase gene (MnSOD 47C/T, rs4880) was performed by real-time PCR using TaqMan technology. The genotypic distribution of the CAT -262C/T promoter gene's polymorphism showed a significant difference between control and T1D patients for the CC genotype (p = 0.009; OR = 0.30) and for the T allele (p = 0.002; OR = 2.82). In addition, the genotypic distribution of the MnSOD 47C/T gene showed an association with T1D for the CT genotype (p = 0.040; OR = 2.37). Our results revealed that polymorphisms of CAT and MnSOD may be associated with physiopathology causing the onset of T1D. Our data, suggest that the genotypic frequencies of these SNPs appear to be influenced by clinical variables and by the Arab-Berber ethnic origin of the Algerian population.
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Affiliation(s)
- A Eddaikra
- Department of Cellular Biology and Physiology, Faculty of Nature and Life, University Saad Dahleb, Blida, Algeria; Department of Cellular and Molecular Biology, Team Cytokines and Nitric Oxide Synthases, Faculty of Biology, University Houari Boumediene USTHB, Algiers, Algeria.
| | - H Amroun
- Department of Immunology, Institute Pasteur of Algeria, Algiers, Algeria
| | - R Raache
- Department of Cellular and Molecular Biology, Team Cytokines and Nitric Oxide Synthases, Faculty of Biology, University Houari Boumediene USTHB, Algiers, Algeria; Department of Immunology, Institute Pasteur of Algeria, Algiers, Algeria
| | - A Galleze
- Department of Cellular and Molecular Biology, Team Cytokines and Nitric Oxide Synthases, Faculty of Biology, University Houari Boumediene USTHB, Algiers, Algeria
| | - N Abdallah-Elhadj
- Diabetology Department, Trichine Ibrahime Fabore Hospital, Blida, Algeria
| | - M Azzouz
- Diabetology Department, Mustapha Pacha Hospital, Algiers, Algeria
| | - F Meçabih
- Department of Immunology, Institute Pasteur of Algeria, Algiers, Algeria
| | - B Mechti
- Department of Immunology, Institute Pasteur of Algeria, Algiers, Algeria
| | - M C Abbadi
- Department of Immunology, Institute Pasteur of Algeria, Algiers, Algeria
| | - C Touil-Boukoffa
- Department of Cellular and Molecular Biology, Team Cytokines and Nitric Oxide Synthases, Faculty of Biology, University Houari Boumediene USTHB, Algiers, Algeria
| | - N Attal
- Department of Immunology, Institute Pasteur of Algeria, Algiers, Algeria
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Mansuri MS, Jadeja SD, Singh M, Laddha NC, Dwivedi M, Begum R. The catalase gene promoter and 5'-untranslated region variants lead to altered gene expression and enzyme activity in vitiligo. Br J Dermatol 2017; 177:1590-1600. [PMID: 28542879 DOI: 10.1111/bjd.15681] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/15/2017] [Indexed: 02/05/2023]
Abstract
BACKGROUND Oxidative stress is considered to be the initial event in the course of vitiligo. The enzyme catalase (CAT) is mainly involved in cellular defence against oxidizing agents through detoxifying H2 O2 . OBJECTIVES The aims were (i) to assess erythrocyte CAT enzyme activity and lipid peroxidation (LPO) levels as well as CAT mRNA expression in skin and blood; (ii) to investigate CAT gene promoter rs7943316, rs1001179, 5'-untranslated region rs1049982, and exon (rs17886350, rs11032709, rs17880442, rs35677492) polymorphisms; and (iii) to perform genotype/haplotype-phenotype correlation analyses in patients with vitiligo and controls from Gujarat. METHODS CAT activity and LPO levels were measured spectrophotometrically. CAT mRNA levels were estimated using real-time polymerase chain reaction (PCR) by the SYBR Green method. Single-nucleotide polymorphism genotyping was performed using PCR-restriction fragment length polymorphism and amplification-refractory mutation system-PCR analyses. RESULTS Patients with vitiligo showed significantly decreased CAT mRNA expression in lesional and nonlesional skin and in blood, with reduced CAT activity compared with that of controls. CAT -89A/T and -20T/C polymorphisms were significantly associated with patients, especially with active and generalized vitiligo, whereas no association was observed for -262G/A and exon polymorphisms. The A-262 T-89 C-20 haplotype with variant alleles was found to be associated with 6·4-fold risk of vitiligo. Genotype/haplotype-phenotype correlation analyses revealed that individuals with susceptible genotypes/haplotype for CAT -89A/T and -20T/C polymorphisms showed significantly decreased CAT mRNA/activity, and only -89A/T polymorphisms showed significantly increased LPO levels compared with wild-type genotypes/haplotype. CONCLUSIONS The present study proposes the crucial role of CAT and its allelic variants in oxidative stress-mediated pathogenesis of vitiligo.
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Affiliation(s)
- M S Mansuri
- Department of Biochemistry, Faculty of Science, Maharaja Sayajirao University of Baroda, Vadodara, Gujarat, 390002, India
| | - S D Jadeja
- Department of Biochemistry, Faculty of Science, Maharaja Sayajirao University of Baroda, Vadodara, Gujarat, 390002, India
| | - M Singh
- Department of Biochemistry, Faculty of Science, Maharaja Sayajirao University of Baroda, Vadodara, Gujarat, 390002, India
| | - N C Laddha
- Department of Biochemistry, Faculty of Science, Maharaja Sayajirao University of Baroda, Vadodara, Gujarat, 390002, India
| | - M Dwivedi
- Department of Biochemistry, Faculty of Science, Maharaja Sayajirao University of Baroda, Vadodara, Gujarat, 390002, India
| | - R Begum
- Department of Biochemistry, Faculty of Science, Maharaja Sayajirao University of Baroda, Vadodara, Gujarat, 390002, India
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Gong B, Shi Y, Qu C, Ye Z, Yin Y, Tan C, Shuai P, Li J, Guo X, Cheng Y, Yang Z, Lin Y, Liu X. Association of catalase polymorphisms with primary open-angle glaucoma in a Chinese population. Ophthalmic Genet 2017; 39:35-40. [PMID: 28829657 DOI: 10.1080/13816810.2017.1342132] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
PURPOSE Many genes have been associated with primary open-angle glaucoma (POAG). This study was conducted to investigate whether catalase (CAT) polymorphisms play a significant role in POAG in a Chinese population. METHODS A cohort of 416 unrelated POAG patients and 997 unrelated control subjects was included in this case-control association study. CAT functional single-nucleotide polymorphisms (SNPs), including rs1001179, rs7943316, and rs769217, were genotyped by SNaPshot method. The genotype and allele frequencies were evaluated using the χ2 tests. The linkage disequilibrium (LD) and haplotype block structure association were examined using the program Haploview (Broad Institute, Cambridge, MA). RESULTS There was a statistically significant difference for CAT functional SNP rs769217 between POAG cases and controls in the allelic model (p = 0.004, OR = 1.27, 95% CI 1.08-1.49). At this SNP, the allele frequency of the C allele in POAG cases was 0.587, which was higher than that in controls (0.528). However, no association was found for rs1001179 and rs7943316 with POAG. Pairwise LD analysis showed high LD between rs769217 and rs7943316 (D' = 0.857, r2 = 0.252, confidence bounds 0.71-0.93). After the association analysis for haplotype block structure generated from rs769217 with rs7943316, the data showed no significant association between the cases and controls. CONCLUSIONS This study showed that CAT functional SNP rs769217 was significantly associated with POAG, implying that the CAT gene variants may play a role in the pathogenesis of POAG in the Chinese population.
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Affiliation(s)
- Bo Gong
- a Sichuan Key Laboratory for Disease Gene Study, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital , University of Electronic Science and Technology of China , Chengdu , China.,b Department of Laboratory Medicine, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital , University of Electronic Science and Technology of China , Chengdu , China
| | - Yi Shi
- a Sichuan Key Laboratory for Disease Gene Study, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital , University of Electronic Science and Technology of China , Chengdu , China.,b Department of Laboratory Medicine, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital , University of Electronic Science and Technology of China , Chengdu , China
| | - Chao Qu
- c Department of Ophthalmology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital , University of Electronic Science and Technology of China , Chengdu , China
| | - Zimeng Ye
- a Sichuan Key Laboratory for Disease Gene Study, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital , University of Electronic Science and Technology of China , Chengdu , China
| | - Yilin Yin
- d Department of Biology, Northeastern University , Boston , MA , USA
| | - Chang Tan
- a Sichuan Key Laboratory for Disease Gene Study, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital , University of Electronic Science and Technology of China , Chengdu , China
| | - Ping Shuai
- a Sichuan Key Laboratory for Disease Gene Study, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital , University of Electronic Science and Technology of China , Chengdu , China
| | - Jing Li
- c Department of Ophthalmology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital , University of Electronic Science and Technology of China , Chengdu , China
| | - Xiaoxin Guo
- a Sichuan Key Laboratory for Disease Gene Study, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital , University of Electronic Science and Technology of China , Chengdu , China
| | - Yilian Cheng
- c Department of Ophthalmology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital , University of Electronic Science and Technology of China , Chengdu , China
| | - Zhenglin Yang
- a Sichuan Key Laboratory for Disease Gene Study, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital , University of Electronic Science and Technology of China , Chengdu , China.,b Department of Laboratory Medicine, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital , University of Electronic Science and Technology of China , Chengdu , China
| | - Ying Lin
- a Sichuan Key Laboratory for Disease Gene Study, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital , University of Electronic Science and Technology of China , Chengdu , China.,b Department of Laboratory Medicine, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital , University of Electronic Science and Technology of China , Chengdu , China.,e Clinical Laboratory of Tianfu New Area People's Hospital , Chengdu , China
| | - Xiaoqi Liu
- a Sichuan Key Laboratory for Disease Gene Study, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital , University of Electronic Science and Technology of China , Chengdu , China.,b Department of Laboratory Medicine, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital , University of Electronic Science and Technology of China , Chengdu , China.,f School of Materials Science and Engineering, Southwest Jiaotong University , Chengdu , Sichuan , China
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15
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Hernández-Guerrero C, Hernández-Chávez P, Romo-Palafox I, Blanco-Melo G, Parra-Carriedo A, Pérez-Lizaur A. Genetic Polymorphisms in SOD (rs2070424, rs7880) and CAT (rs7943316, rs1001179) Enzymes Are Associated with Increased Body Fat Percentage and Visceral Fat in an Obese Population from Central Mexico. Arch Med Res 2017; 47:331-339. [PMID: 27751366 DOI: 10.1016/j.arcmed.2016.08.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Accepted: 08/22/2016] [Indexed: 11/17/2022]
Abstract
BACKGROUND AND AIMS Oxidative disturbance is an important factor involved in the etiology of comorbidities associated with obesity. Genetic polymorphisms such as SOD1 -251A>G, SOD2 47 C>T, CAT -21A>T and CAT -262 C>T have been described to alter the activity of antioxidant enzymes. The aim of the present work was to analyze the association of the mentioned SNPs with obesity and their relationship with anthropometric and clinical variables in this group. METHODS The study included 416 Mexican women (208 normal weight, NW and 208 subjects with obesity, OB). Dietary intake, anthropometric, biochemical and clinical features were evaluated and then analyzed in function of the genotypes. RESULTS The mutated carriers (GA+GG) of SOD -251 were significantly higher in the OB group (0.24) compared to the NW group (0.08). The other SNPs showed no differences compared with control group. When comparing carrier mutated subjects with obesity vs. wild-type obese participants with the SNPs SOD1 -251, SOD2 47 and CAT -262, the carriers showed a significantly (p <0.05) higher value in body fat percentage. Also, carriers of SOD2 47 and CAT-262 showed significantly higher values (p = 0.002) and (p = 0.01), respectively, when visceral fat was compared between groups. Systolic blood pressure was significantly higher (p = 0.02) in carriers of mutated CAT-21. CONCLUSION SOD1 -251A>G is associated with obesity independent of the presence of diabetes or dyslipidemia. Mutated obese carries of SOD1 -251, SOD2 47 and CAT -262 are associated with a higher distribution of fat in comparison with obese wild-type carriers.
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Affiliation(s)
| | | | - Inés Romo-Palafox
- Departamento de Salud, Universidad Iberoamericana, Mexico City, México
| | | | | | - Ana Pérez-Lizaur
- Dirección de Posgrado, Universidad Iberoamericana, Mexico City, México
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16
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Bushueva OY, Ivanov VP, Ryzhaeva VN, Ponomarenko IV, Churnosov MI, Polonikov AV. [Association of the -844G>A polymorphism in the catalase gene with the increased risk of essential hypertension in smokers]. TERAPEVT ARKH 2016; 88:50-54. [PMID: 27735913 DOI: 10.17116/terarkh201688950-54] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
AIM To investigate whether the functionally relevant -844G>A promotor polymorphism in the catalase (CAT) gene is associated with the development of essential hypertension (EH). SUBJECTS AND METHODS The investigation enrolled 2,339 unrelated ethnic Russian people, including 1,269 EH patients and 770 apparently healthy individuals. Genotyping of CAT -844G>A (rs769214) polymorphism was performed using a TaqMan real-time polymerase chain reaction assay. RESULTS The -844A allele (odds ratio (OR)=1.31; 95% confidence interval (CI), 1.04 to 1.64; р=0.02) and the -844AA genotype (OR=1.41; 95% CI, 1.02 to 1.94; р=0.03) were found to be related to a higher risk of EH in the smokers. No association was found between this polymorphism and EH risk in the non-smokers. CONCLUSION Smoking is a predisposing factor for development of EH in CAT -844AA genotype carriers.
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Affiliation(s)
- O Yu Bushueva
- Kursk State Medical University, Ministry of Health of Russia, Kursk, Russia
| | - V P Ivanov
- Kursk State Medical University, Ministry of Health of Russia, Kursk, Russia
| | - V N Ryzhaeva
- Kursk State Medical University, Ministry of Health of Russia, Kursk, Russia
| | - I V Ponomarenko
- Kursk State Medical University, Ministry of Health of Russia, Kursk, Russia
| | - M I Churnosov
- Belgorod National Research University, Belgorod, Russia
| | - A V Polonikov
- Kursk State Medical University, Ministry of Health of Russia, Kursk, Russia
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17
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The Role of Catalase C262T Gene Polymorphism in the Susceptibility and Survival of Cancers. Sci Rep 2016; 6:26973. [PMID: 27225983 PMCID: PMC4880922 DOI: 10.1038/srep26973] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Accepted: 05/10/2016] [Indexed: 02/07/2023] Open
Abstract
Catalase (CAT), one antioxidant enzyme, may provide resistance against many diseases. Many previous studies reported predictive and prognostic values of CAT C262T polymorphism in cancers, with divergent results. This study aimed to summarize the overall relationships between CAT C262T polymorphism and cancer risk or survival. A total of 27 eligible publications were included in susceptibility analysis, while 8 publications contained survival outcomes. The results revealed significant relationship between CAT C262T polymorphism and cancer risk(TT + CT vs CC: OR = 1.05, 95%CI = 1.00–1.10, P = 0.036), subgroup analyses indicated the CAT C262T polymorphism was significantly correlated with an increased risk for prostate cancer (TT vs CC + CT: OR = 1.43, 95%CI = 1.20–1.70, P < 0.001) and increased risk among Caucasians (TT vs CC + CT: OR = 1.19, 95%CI = 1.09–1.31, P < 0.001), while no associations between the polymorphism and Asian or mixed population were established. In the survival analysis, no interactions were identified between this polymorphism and cancer survival (TT + CT vs CC: HR = 1.37, 95%CI = 0.70–2.70, P = 0.36). In conclusion, the CAT C262T polymorphismmay be a candidate markerfor cancer risk with type-specific and population-specific effects but not a fine prognostic factor for cancer survival.
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18
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Koleck TA, Bender CM, Sereika SM, Brufsky AM, Lembersky BC, McAuliffe PF, Puhalla SL, Rastogi P, Conley YP. Polymorphisms in DNA repair and oxidative stress genes associated with pre-treatment cognitive function in breast cancer survivors: an exploratory study. SPRINGERPLUS 2016; 5:422. [PMID: 27099827 PMCID: PMC4826652 DOI: 10.1186/s40064-016-2061-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 03/27/2016] [Indexed: 02/06/2023]
Abstract
PURPOSE The purpose of this exploratory candidate gene association study was to examine relationships between polymorphisms in oxidative stress and DNA repair genes and pre-adjuvant therapy cognitive function (CF) in postmenopausal women diagnosed with early stage-breast cancer. METHODS Using a neuropsychological test battery, CF was assessed in 138 women diagnosed with breast cancer prior to initiation of adjuvant therapy and 81 age- and education-matched controls and summarized across eight composites. Participants were genotyped for 39 functional or tagging single nucleotide polymorphisms (SNPs) of select oxidative stress (CAT, GPX1, SEPP1, SOD1, and SOD2) and DNA repair (ERCC2, ERCC3, ERCC5, and PARP1) genes. Multiple linear regression was used to determine if the presence or absence of one or more minor alleles account for variability in CF composite scores. Based on regression findings from the analysis of individual SNPs, weighted multi-gene, multi-polymorphism genetic risk scores (GRSs) were calculated to evaluate the collective effect of possession of multiple protective and/or risk alleles. RESULTS Each CF composite was significantly (p < 0.05) associated with one or more oxidative stress and DNA repair gene polymorphisms evaluated either by SNP main effects and/or SNP-by-prescribed breast cancer treatment group interactions. Each computed GRS was found to be significantly (p < 0.001) related to its corresponding CF composite. All associations were positive suggesting that as overall genetic protection increases, CF composite score increases (indicating better performance). CONCLUSIONS These findings suggest that genetic variation in the oxidative stress and DNA repair pathways may play an important role in pre-adjuvant therapy CF in breast cancer survivors.
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Affiliation(s)
- Theresa A Koleck
- School of Nursing, University of Pittsburgh, 3500 Victoria Street, Pittsburgh, PA 15261 USA
| | - Catherine M Bender
- School of Nursing, University of Pittsburgh, 3500 Victoria Street, Pittsburgh, PA 15261 USA
| | - Susan M Sereika
- School of Nursing, University of Pittsburgh, 3500 Victoria Street, Pittsburgh, PA 15261 USA ; Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, 130 De Soto Street, Pittsburgh, PA 15261 USA ; Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, 130 De Soto Street, Pittsburgh, PA 15261 USA
| | - Adam M Brufsky
- Division of Hematology/Oncology, Magee-Womens Hospital of University of Pittsburgh Medical Center (UPMC), 300 Halket Street, Pittsburgh, PA 15213 USA ; University of Pittsburgh Cancer Institute, 5150 Centre Avenue, Pittsburgh, PA 15232 USA ; School of Medicine, University of Pittsburgh, 3550 Terrace Street, Pittsburgh, PA 15261 USA
| | - Barry C Lembersky
- Division of Hematology/Oncology, Magee-Womens Hospital of University of Pittsburgh Medical Center (UPMC), 300 Halket Street, Pittsburgh, PA 15213 USA ; University of Pittsburgh Cancer Institute, 5150 Centre Avenue, Pittsburgh, PA 15232 USA
| | - Priscilla F McAuliffe
- University of Pittsburgh Cancer Institute, 5150 Centre Avenue, Pittsburgh, PA 15232 USA ; School of Medicine, University of Pittsburgh, 3550 Terrace Street, Pittsburgh, PA 15261 USA ; Division of Breast Surgical Oncology, Magee-Womens Hospital of University of Pittsburgh Medical Center (UPMC), 300 Halket Street, Pittsburgh, PA 15213 USA
| | - Shannon L Puhalla
- Division of Hematology/Oncology, Magee-Womens Hospital of University of Pittsburgh Medical Center (UPMC), 300 Halket Street, Pittsburgh, PA 15213 USA ; School of Medicine, University of Pittsburgh, 3550 Terrace Street, Pittsburgh, PA 15261 USA
| | - Priya Rastogi
- Division of Hematology/Oncology, Magee-Womens Hospital of University of Pittsburgh Medical Center (UPMC), 300 Halket Street, Pittsburgh, PA 15213 USA ; School of Medicine, University of Pittsburgh, 3550 Terrace Street, Pittsburgh, PA 15261 USA
| | - Yvette P Conley
- School of Nursing, University of Pittsburgh, 3500 Victoria Street, Pittsburgh, PA 15261 USA ; Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, 130 De Soto Street, Pittsburgh, PA 15261 USA
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Glorieux C, Zamocky M, Sandoval JM, Verrax J, Calderon PB. Regulation of catalase expression in healthy and cancerous cells. Free Radic Biol Med 2015; 87:84-97. [PMID: 26117330 DOI: 10.1016/j.freeradbiomed.2015.06.017] [Citation(s) in RCA: 163] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Revised: 06/08/2015] [Accepted: 06/10/2015] [Indexed: 11/28/2022]
Abstract
Catalase is an important antioxidant enzyme that dismutates hydrogen peroxide into water and molecular oxygen. The catalase gene has all the characteristics of a housekeeping gene (no TATA box, no initiator element sequence, high GC content in promoter) and a core promoter that is highly conserved among species. We demonstrate in this review that within this core promoter, the presence of DNA binding sites for transcription factors, such as NF-Y and Sp1, plays an essential role in the positive regulation of catalase expression. Additional transcription factors, such as FoxO3a, are also involved in this regulatory process. There is strong evidence that the protein Akt/PKB in the PI3K signaling pathway plays a major role in the expression of catalase by modulating the activity of FoxO3a. Over the past decade, other transcription factors (PPARγ, Oct-1, etc.), as well as genetic, epigenetic, and posttranscriptional processes, have emerged as crucial contributors to the regulation of catalase expression. Altered expression levels of catalase have been reported in cancer tissues compared to their normal counterparts. Deciphering the molecular mechanisms that regulate catalase expression could, therefore, be of crucial importance for the future development of pro-oxidant cancer chemotherapy.
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Affiliation(s)
- Christophe Glorieux
- Toxicology and Cancer Biology Research Group, Louvain Drug Research Institute, Université catholique de Louvain, 1200 Brussels, Belgium
| | - Marcel Zamocky
- Division of Biochemistry, Department of Chemistry, University of Natural Resources and Life Sciences (BOKU), A-1190 Vienna, Austria; Institute of Molecular Biology, Slovak Academy of Sciences, SK-84551 Bratislava, Slovakia
| | - Juan Marcelo Sandoval
- Toxicology and Cancer Biology Research Group, Louvain Drug Research Institute, Université catholique de Louvain, 1200 Brussels, Belgium
| | - Julien Verrax
- Toxicology and Cancer Biology Research Group, Louvain Drug Research Institute, Université catholique de Louvain, 1200 Brussels, Belgium
| | - Pedro Buc Calderon
- Toxicology and Cancer Biology Research Group, Louvain Drug Research Institute, Université catholique de Louvain, 1200 Brussels, Belgium; Facultad de Ciencias de la Salud, Universidad Arturo Prat, 1100000 Iquique, Chile.
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20
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Liu Y, Xie L, Zhao J, Huang X, Song L, Luo J, Ma L, Li S, Qin X. Association between catalase gene polymorphisms and risk of chronic hepatitis B, hepatitis B virus-related liver cirrhosis and hepatocellular carcinoma in Guangxi population: a case-control study. Medicine (Baltimore) 2015; 94:e702. [PMID: 25837767 PMCID: PMC4554034 DOI: 10.1097/md.0000000000000702] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Revised: 02/24/2015] [Accepted: 03/04/2015] [Indexed: 12/29/2022] Open
Abstract
Reactive oxygen species (ROS) play critical roles in hepatocarcinogenesis. The catalase (CAT) enzyme is involved in the repair of ROS. Therefore, we investigate the association between CAT gene polymorphisms and the risk of hepatocellular carcinoma (HCC). A total of 715 subjects were divided into 4 groups: 111 chronic hepatitis B (CHB) patients, 90 hepatitis B virus (HBV)-related liver cirrhosis (LC) patients, 266 HBV-HCC patients, and 248 healthy controls. The polymerase chain reaction-restriction fragment length polymorphism strategy was used to detect CAT gene rs1001179, rs769217, and rs7943316 polymorphisms. Binary logistic regression analyses adjusting for sex, age, ethnicity, smoking and alcohol consumption, and body mass index suggested that subjects carrying the rs769217 T allele were at marginally increased risk of CHB, LC, and HCC, with adjusted odds ratios (ORs) of 1.51 (95% confidence interval [CI] = 1.04-2.20, P = 0.029), 1.48 (95% CI = 1.03-2.14, P = 0.035), and 1.51 (95% CI = 1.14-1.98, P = 0.004), respectively. Similarly, those individuals carrying the rs769217 TT genotype had a moderately increased risk of CHB, LC, and HCC, with adjusted ORs of 2.11 (95% CI = 1.05-4.22, P = 0.035), 2.00 (95% CI, 1.01-3.95, P = 0.047), and 1.93 (95% CI = 1.14-3.28, P = 0.015), respectively. Moreover, subjects carrying the rs769217 CT genotype and at least 1 copy of the T allele (dominant model) were 1.78 times and 1.83 times more likely to develop HCC, respectively (OR = 1.78, 95% CI = 1.16-2.73, P = 0.009 and OR = 1.83, 95% CI = 1.23-2.71, P = 0.003). This association between CAT rs769217 T alleles and HCC risk is significantly strengthened among men, nonsmokers, nondrinkers, and among individuals <50 years of age. Furthermore, we found 1 high-risk haplotype GTA for CHB (OR = 1.45, 95% CI = 1.05-2.01) and 1 protective haplotype GCA for HCC risk (OR = 0.67, 95% CI = 0.52-0.87). We did not found any significant difference in CAT rs1001179 and rs7943316 polymorphisms between controls and cases. Our findings suggest that the CAT rs769217 T allele is associated with increased risk of CHB, HBV-LC, and HBV-HCC in Guangxi population.
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Affiliation(s)
- Yanqiong Liu
- From the Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
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21
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Zarafshan SS, Salehi Z, Salahi E, Sabet EE, Shabanipour S, Zahiri Z. Polymorphism of catalase gene (CAT C-262T) in women with endometriosis. J OBSTET GYNAECOL 2014; 35:269-71. [PMID: 25154023 DOI: 10.3109/01443615.2014.948402] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Endometriosis is defined as the presence of ectopic endometrial glands and stroma outside of the uterine cavity. Recent studies have shown that the oxidative stress causes irreparable damage, which leads to oxidative enzymopathies. Catalase gene encodes an antioxidant enzyme, detoxifying hydrogen peroxide to H2O and O2. The aim of this study was to determine whether the polymorphism at position -262 in the promoter region of catalase gene (C-262T), which alters the expression and enzyme blood levels, could have an impact on the risk of endometriosis. Extracted DNA from peripheral blood leucocytes was genotyped using allele-specific PCR (AS-PCR). The χ(2)-test was used for statistical analyses. In endometriosis subjects, the frequencies of the CAT CC/CT/TT were 67.5%, 32.5% and 0%, respectively, while in healthy women, they were 12%, 68% and 20%, respectively. Significant differences in allele and genotype distribution among controls and patients were found (OR, 178.76 95% CI, 10.11-3159.1202; p = 0.0004). This study indicates that catalase C-262T polymorphism is associated with the endometriosis. Randomised multicentre trials with greater sample sizes are still needed to clarify our results.
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Sabet EE, Salehi Z, Khodayari S, Zarafshan SS, Zahiri Z. Polymorphisms of glutathione peroxidase 1 (GPX1 Pro198Leu) and catalase (CAT C-262T) in women with spontaneous abortion. Syst Biol Reprod Med 2014; 60:304-7. [PMID: 25033027 DOI: 10.3109/19396368.2014.892651] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
About 10%-15% of conceptions are lost spontaneously prior to 20 weeks. Apart from the clinical problems, genetic variations have also been proposed as a susceptibility factor to miscarriage. Glutathione peroxidase 1 (GPX1) and catalase (CAT) encode two antioxidant enzymes that detoxify H2O2 and protect the cells from oxidative damage. A functional polymorphism at codon 198 of the GPX1 gene causes a C/T substitution in exon 2, which encodes for either proline or leucine (Pro198Leu). The CAT gene has a polymorphic site in the promoter region at position -262 (C-262T) which alters the expression and enzyme blood levels, leading to some pathological clinical conditions. In this study, we evaluated the association of these two polymorphisms with the risk of spontaneous abortion. Genomic DNA from 105 cases with spontaneous abortion and 90 healthy women were genotyped using allele-specific PCR (AS-PCR) and polymerase chain reaction - restriction fragment length polymorphism (PCR-RFLP). The genetic distributions for GPX1 did not differ significantly between cases and controls (p = 0.680). However, C-262T polymorphism was significantly associated with the risk of the disease (OR, 5.50; 95% CI, 1.43-21.09; p = 0.012). In conclusion, this study indicates that CAT -262T/T genotype confers less susceptibility to spontaneous abortion, while GPX1 Pro198Leu polymorphism may not be correlated with the disease.
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Affiliation(s)
- Eliza Eskafi Sabet
- Department of Biology, Faculty of Sciences, University of Guilan , Rasht , Iran
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Sabouhi S, Salehi Z, Bahadori MH, Mahdavi M. Human catalase gene polymorphism (CAT C-262T) and risk of male infertility. Andrologia 2014; 47:97-101. [PMID: 24456074 DOI: 10.1111/and.12228] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/27/2013] [Indexed: 11/29/2022] Open
Abstract
Infertility is the failure of a couple to engender after endeavouring at least one full year of unprotected intercourse. It has been reported that reactive oxygen species contributed to pathogenesis of various disease. To inactivate ROS cells biosynthesise several antioxidant enzymes, one of them is catalase which contributes H2 O2 to H2 O and O2 . This study set out to delineate the association of catalase C-262T polymorphism with idiopathic male infertility. The study included 195 men with idiopathic infertility and 190 healthy volunteers. Genomic DNA was extracted from peripheral blood leucocytes. Genotype and allele frequencies were determined in patients and controls using allele-specific PCR (AS-PCR). The prevalence of genotype frequencies of the CAT CC/CT/TT was 31.79%, 65.12% and 3.07%, respectively, in infertile subjects, as against 24.73%, 55.26% and 20%, respectively, in healthy volunteers. Statistical analysis has emerged significant difference from the comparison of either genotype (P < 0.05). Taking into accounts of results, the catalase C-262T polymorphism indicates that CAT-262T/T genotype confers less susceptibility to male infertility. Further studies with larger numbers of patients are required for further evaluation and confirmation of our finding.
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Affiliation(s)
- S Sabouhi
- Department of Biology, Faculty of Sciences, University of Guilan, Rasht, Iran
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Jansen RJ, Robinson DP, Stolzenberg-Solomon RZ, Bamlet WR, Tan X, Cunningham JM, Li Y, Rider DN, Oberg AL, Rabe KG, Anderson KE, Sinha R, Petersen GM. Polymorphisms in metabolism/antioxidant genes may mediate the effect of dietary intake on pancreatic cancer risk. Pancreas 2013; 42:1043-53. [PMID: 24051964 PMCID: PMC3779344 DOI: 10.1097/mpa.0b013e3182968e00] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVES A source of variation for inconsistent dietary-pancreatic cancer associations may be individuals carrying constitutional metabolism/antioxidant gene variants that differentially benefit compared to homozygous individuals. Seventy-six tag single-nucleotide polymorphisms were genotyped in 13 candidate genes to test differential associations with pancreatic adenocarcinoma. METHODS A clinic-based case-control design was used to rapidly ascertain 251 cases and 970 frequency matched controls who provided blood samples and completed a 144-item food frequency questionnaire. Single-nucleotide polymorphisms were evaluated using a dominant genetic model and dietary categories split on controls' median intake. Logistic regression was used to calculate odds ratios and 95% confidence intervals, adjusted for potential confounders. RESULTS Significant increased associations (Bonferroni corrected P ≤ 0.0007) were observed for carriers of greater than or equal to 1 minor allele for rs3816257 (glucosidase, α; acid [GAA]) and lower intake of deep-yellow vegetables (1.90 [1.28-2.83]); and carriers of no minor allele for rs12807961 (catalase [CAT]) and high total grains intake (2.48 [1.50-4.09]), whereas those with greater than or equal to 1 minor allele had a decreasing slope (across grains). The reference group was no minor alleles with low dietary intake. CONCLUSIONS Interindividual variation in metabolism/antioxidant genes could interact with dietary intake to influence pancreatic cancer risk.
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Affiliation(s)
- Rick J Jansen
- From the Divisions of *Epidemiology, and †Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, Rochester, MN; ‡Department of Epidemiology, National Institutes of Health, Bethesda, MD; §Department of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN; and ∥Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD
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Petrovič D. Association of the -262C/T polymorphism in the catalase gene promoter and the C242T polymorphism of the NADPH oxidase P22phox gene with essential arterial hypertension in patients with diabetes mellitus type 2. Clin Exp Hypertens 2013; 36:36-9. [PMID: 23701472 DOI: 10.3109/10641963.2013.783051] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
AIM The aim of the present study was to test the association between genetic polymorphisms with functional effects on redox regulation: the -262C/T of the catalase gene promoter (rs1001179), the C242T of the nicotinamide adenine dinucleotide phosphate (NADPH) oxidase P22phox gene (rs4673), and the 594C/T polymorphism of the glutathione peroxidase gene (rs1050450) and arterial hypertension (AH) in patients with type 2 diabetes. METHODS 810 Slovenian subjects (Caucasians) with type 2 diabetes were enrolled in the cross-sectional study. Genotypes were determined by real-time PCR. RESULTS Univariate analysis failed to demonstrate an association between either the -262C/T of the catalase gene promoter (rs1001179) or the C242T polymorphism of the P22phox gene (rs4673) or the 594C/T polymorphism of the glutathione peroxidase gene (rs1050450) and AH. After adjustment for age, body mass index, fibrinogen level and high sensitivity C-reactive protein level, rs4673 was found to be an independent risk factor for AH in subjects with type 2 diabetes, whereas rs1001179 and rs1050450 were not. CONCLUSION According to the results of cross-sectional study, the tested polymorphism of the NADPH oxidase P22phox gene (rs4673) was found to be associated with the development of AH, indicating that the oxidative stress gene NADPH oxidase might be implicated in the pathogenesis of AH in subjects with type 2 diabetes.
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Affiliation(s)
- Daniel Petrovič
- Medical Faculty Ljubljana, University Ljubljana , Ljubljana , Slovenia
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Gomes P, Simão S, Lemos V, Amaral JS, Soares-da-Silva P. Loss of oxidative stress tolerance in hypertension is linked to reduced catalase activity and increased c-Jun NH2-terminal kinase activation. Free Radic Biol Med 2013; 56:112-22. [PMID: 23220262 DOI: 10.1016/j.freeradbiomed.2012.11.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2012] [Revised: 11/12/2012] [Accepted: 11/24/2012] [Indexed: 12/15/2022]
Abstract
Hypertension is accompanied by increased levels of reactive oxygen species, which may contribute to progressive renal injury and dysfunction. Here we tested the hypothesis that sensitivity to exogenous hydrogen peroxide (H(2)O(2)) is enhanced in immortalized renal proximal tubular epithelial cells from spontaneously hypertensive rats (SHR) compared to normotensive control Wistar Kyoto rats (WKY). We found that SHR cells were more sensitive to H(2)O(2)-induced cell death than WKY cells. Lower survival in SHR cells correlated with increased DNA fragmentation, chromatin condensation, and caspase-3 activity, indicating apoptosis. H(2)O(2) degradation was slower in SHR than in WKY cells, suggesting that reduced antioxidant enzyme activity might be the basis for their increased sensitivity. In fact, catalase activity was downregulated in SHR cells, whereas glutathione peroxidase activity was similar in both cell types. We next examined whether MAPK signaling pathways contributed to H(2)O(2)-mediated apoptosis. Inhibition of c-Jun NH(2)-terminal kinase (JNK) with SP600125 partially rescued H(2)O(2)-induced apoptosis in WKY but not in SHR cells. In addition, p54 JNK2 isoform was robustly phosphorylated by H(2)O(2), this effect being more pronounced in SHR cells. Together, these results suggest that the survival disadvantage of SHR cells upon exposure to H(2)O(2) stems from impaired antioxidant mechanisms and activated JNK proapoptotic signaling pathways.
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Affiliation(s)
- Pedro Gomes
- Department of Pharmacology and Therapeutics, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal.
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Nivet-Antoine V, Labat C, El Shamieh S, Dulcire X, Cottart CH, Beaudeux JL, Zannad F, Visvikis-Siest S, Benetos A. Relationship between catalase haplotype and arterial aging. Atherosclerosis 2013; 227:100-5. [DOI: 10.1016/j.atherosclerosis.2012.12.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2012] [Revised: 10/23/2012] [Accepted: 12/16/2012] [Indexed: 10/27/2022]
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KOMINA AV, KOROSTILEVA KA, GYRYLOVA SN, BELONOGOV RN, RUKSHA TG. Interaction Between Single Nucleotide Polymorphism in Catalase Gene and Catalase Activity Under the Conditions of Oxidative Stress. Physiol Res 2012; 61:655-8. [DOI: 10.33549/physiolres.932333] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Catalase is an antioxidant enzyme the activity of which is crucial for the protection against damage caused by reactive oxygen species. The –262C>T polymorphism in the promoter region of catalase gene was found to be associated with altered catalase levels. In this study, peripheral blood mononuclear cells catalase activity was measured after H2O2-induced oxidative stress. C/T and T/T genotypes were associated with the decrease of catalase levels in contrast to C/C donors who had elevated catalase activity in the presence of 0.4 and 0.7 mM H2O2. Genotype-dependent response of catalase activity to oxidative stress might be related to the predisposition of catalase mutant allele carriers to disorders mediated by oxidative stress.
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Affiliation(s)
| | | | | | | | - T. G. RUKSHA
- Department of Pathophysiology, Krasnoyarsk State Medical University Named After V. F. Voino-Yasenetsky, Russian Federation Ministry for Health and Social Development, Krasnoyarsk, Russia
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Ghattas MH, Abo-Elmatty DM. Association of Polymorphic Markers of the Catalase and Superoxide Dismutase Genes with Type 2 Diabetes Mellitus. DNA Cell Biol 2012; 31:1598-603. [DOI: 10.1089/dna.2012.1739] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Maivel H. Ghattas
- Department of Medical Biochemistry, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Dina M. Abo-Elmatty
- Department of Biochemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
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Abstract
PURPOSE OF REVIEW This review summarizes our current understanding of the implication of catalase polymorphisms in the occurrence, control and comorbidities of metabolic diseases. RECENT FINDINGS Whatever impaired glucose tolerance, insulin resistance on diabetes and whatever their occurrence or implications, the studies taken together converge toward the hypothesis that catalase polymorphisms play a role in glucose disorders. -262C/T and -844A>G single nucleotide polymorphisms are associated to hypertension susceptibility and/or onset. Concerning dyslipidemia, very recent studies requiring confirmation report a -262C/T implication. Finally, a role of catalase polymorphisms in bone metabolism is described. SUMMARY Plethora of studies on catalase SNPs and their link with diseases exist. It is now clear that genetic variations in the catalase gene and its promoter are putative risk factors for metabolic disease. The question of how these polymorphisms actively play a role in various metabolisms remains unanswered. Further functional studies are required in order to gain a deeper insight into the direct role of catalase.
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Kokaze A, Ishikawa M, Matsunaga N, Karita K, Yoshida M, Ohtsu T, Ochiai H, Shirasawa T, Saga N, Hoshino H, Takashima Y. Combined Effect of Longevity-Associated Mitochondrial DNA 5178 C/A Polymorphism and Green Tea Consumption on Risk of Hypertension in Middle-Aged Japanese Men. Hum Biol 2012; 84:307-18. [DOI: 10.3378/027.084.0309] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Abstract
There is increasing interest in oxidative stress being a potential aetiological factor and/or a triggering factor in Crohn's disease, rather than a concomitant occurrence during the pathogenesis of the disease. Recent research has shown that the immune mononuclear cells of Crohn's disease patients are induced to produce hydrogen peroxide (H2O2). Similarly, the regulation of antioxidant enzymes during disease in these cells has been unravelled, showing that SOD (superoxide dismutase) activity and GPx (glutathione peroxidase) activity is increased during active disease and returns to normal in remission phases. However, catalase remains constantly inhibited which supports the idea that catalase is not a redox-sensitive enzyme, but a regulator of cellular processes. ROS (reactive oxygen species) can be produced under the stimulus of different cytokines such as TNFα (tumour necrosis factor α). It has been shown in different experimental models that they are also able to regulate apoptosis and other cellular processes. The status of oxidative stress elements in Crohn's disease and their possible implications in regulating cellular processes are reviewed in the present paper.
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Behrman JR, Kohler HP, Jensen VM, Pedersen D, Petersen I, Bingley P, Christensen K. Does more schooling reduce hospitalization and delay mortality? New evidence based on Danish twins. Demography 2011; 48:1347-75. [PMID: 21842327 PMCID: PMC3660725 DOI: 10.1007/s13524-011-0052-1] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Schooling generally is positively associated with better health-related outcomes-for example, less hospitalization and later mortality-but these associations do not measure whether schooling causes better health-related outcomes. Schooling may in part be a proxy for unobserved endowments-including family background and genetics-that both are correlated with schooling and have direct causal effects on these outcomes. This study addresses the schooling-health-gradient issue with twins methodology, using rich data from the Danish Twin Registry linked to population-based registries to minimize random and systematic measurement error biases. We find strong, significantly negative associations between schooling and hospitalization and mortality, but generally no causal effects of schooling.
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Affiliation(s)
- Jere R Behrman
- Economics and Sociology, University of Pennsylvania, McNeil 160, 3718 Locust Walk, Philadelphia, PA 19104-6297, USA.
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Association of the −262C/T polymorphism in the catalase gene promoter with carotid atherosclerosis in Slovenian patients with type 2 diabetes. Open Med (Wars) 2011. [DOI: 10.2478/s11536-011-0037-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
AbstractGenetic variations of the antioxidant enzymes may influence the susceptibility to oxidative stress and consequently the development and progression of diabetic complications. The aim of the current study was to test the association between the −262C/T polymorphism in the catalase gene promoter and carotid atherosclerosis in Slovenian patients with type 2 diabetes. Two-hundred and eighty six diabetics and 150 healthy controls were enrolled in the study. Carotid atherosclerosis was quantified ultrasonographiocally by carotid intima-media thickness (CITM), plaque score and plaque type. Genotypes were determined using the real-time PCR. Fibrinogen concentration showed a borderline statistically significant difference due to catalase genotypes (p=0,05). No difference in clinical characteristics, CIMT, plaque stability or plaque score was observed. Logistic regression model adjusted for age, gender, smoking, BMI, lipid parameters and duration of hypertension and diabetes showed significant association of T allele and lower risk for higher plaque score (OR=0,25; p=0,025). No association with CIMT>1mm and unstable plaques was observed. T allele of −262C/T is associated with lower risk for higher plaque score but it did not affect clinical parameters, CIMT and plaque stability. Whether this polymorphism can be used as a genetic marker for advanced carotid atherosclerosis in diabetic patients needs to be evaluated in the future.
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Glorieux C, Dejeans N, Sid B, Beck R, Calderon PB, Verrax J. Catalase overexpression in mammary cancer cells leads to a less aggressive phenotype and an altered response to chemotherapy. Biochem Pharmacol 2011; 82:1384-90. [PMID: 21689642 DOI: 10.1016/j.bcp.2011.06.007] [Citation(s) in RCA: 104] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2011] [Revised: 06/01/2011] [Accepted: 06/02/2011] [Indexed: 02/05/2023]
Abstract
Because reactive oxygen species (ROS) are naturally produced as a consequence of aerobic metabolism, cells have developed a sophisticated set of antioxidant molecules to prevent the toxic accumulation of these species. However, compared with normal cells, malignant cells often exhibit increased levels of intracellular ROS and altered levels of antioxidant molecules. The resulting endogenous oxidative stress favors tumor growth by promoting genetic instability, cell proliferation and angiogenesis. In this context, we assessed the influence of catalase overexpression on the sensitivity of breast cancer cells towards various anticancer treatments. Our data show that catalase overexpression in MCF-7 cells leads to a 7-fold increase in catalase activity but provokes a 40% decrease in the expression of both glutathione peroxidase and peroxiredoxin II. Interestingly, proliferation and migration capacities of MCF-7 cells were impaired by the overexpression of catalase, as compared to parental cells. Regarding their sensitivity to anticancer treatments, we observed that cells overexpressing catalase were more sensitive to paclitaxel, etoposide and arsenic trioxide. However, no effect was observed on the cytotoxic response to ionizing radiations, 5-fluorouracil, cisplatin or doxorubicin. Finally, we observed that catalase overexpression protects cancer cells against the pro-oxidant combination of ascorbate and menadione, suggesting that changes in the expression of antioxidant enzymes could be a mechanism of resistance of cancer cells towards redox-based chemotherapeutic drugs.
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Affiliation(s)
- Christophe Glorieux
- Université Catholique de Louvain, Louvain Drug Research Institute, Toxicology and Cancer Biology Research Group, Belgium
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Abstract
OBJECTIVE To assess the association of single-nucleotide polymorphisms (SNPs) in genes codifying for antioxidant enzymes to blood pressure (BP) values and risk of hypertension. METHODS Population-based study including 1388 participants (704 women) older than 18 years in which 300 were untreated hypertensive patients. In 335 untreated hypertensive patients referred to one hypertension clinic, the study was replicated. Thirty-five SNP throughout 13 genes were analyzed using SNPlex. In a subgroup of hypertensive patients, the amount of 8-oxo-deoxyguanosine and GPX activity levels was measured in mononuclear cells. RESULTS In the general population, genotypes with the G allele of the c.172G>A polymorphism in the SOD3 gene and those with the T allele of the c.-20C>T polymorphism in the CAT gene were associated with significant lower values of BP. Likewise, these genotypes were associated with less risk for hypertension after adjusting for confounder variables. Haplotypes in both genes increased the strength of associations. In the hypertensive patients, the same alleles of the two polymorphisms were associated with lower BP values too. In addition, two others, the CT-TT genotypes of the c.891C>T polymorphism in the GPX1 gene and the CT-CC genotypes of the c.-793T>C polymorphism of the TXN gene were also significantly associated to lower BP values. Furthermore, the CC genotype of the c.891C>T polymorphism in the GPX1 gene was associated with higher values of 8-oxo-dG and GPX activity levels as compared to those for the CT-TT genotype. CONCLUSIONS The results of the present study support the influence of antioxidant enzyme genes in BP values and hypertension risk.
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Promoter variant in the catalase gene is associated with vitiligo in Chinese people. J Invest Dermatol 2010; 130:2647-53. [PMID: 20613769 DOI: 10.1038/jid.2010.192] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Vitiligo is an acquired depigmentation disorder, and reactive oxygen species have an important role in the physiology of cell damage. Reduced catalase enzyme activity and accumulation of excessive hydrogen peroxide have been observed in vitiligo. In a hospital-based case-control study of vitiligo patients (n=749) and age- and sex-matched healthy controls (n=763), we investigated three catalase (CAT) gene polymorphisms (-89A>T, 389C>T, and 419C>T) to examine whether CAT gene polymorphisms are associated with vitiligo susceptibility in the Chinese population. The case-control analysis revealed a 1.54-fold (95% confidence interval (CI) 1.25-1.91) increased risk of developing vitiligo for -89A>T genotype carriers. No evidence for any association between 389C>T and 419C>T polymorphisms in the catalase gene and vitiligo susceptibility was found. An analysis of haplotypes showed increased risk for T(-89)C(389) (odds ratio (OR) 1.90, 95% CI 1.26-2.86) and T(-89)T(389) (OR 2.80, 95% CI 1.24-6.30). Logistic regression analysis of catalase activity also showed a dose-response relationship between increased risk and decreased activity in CAT -89A>T variant genotype carriers, especially in vitiligo patients (P(trend) <0.001). Our molecular epidemiologic findings suggest that the CAT -89A>T variant genotypes were associated with a significant decrease in catalase enzyme activity and a genetic predisposition for vitiligo in Chinese people.
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Wang Z, Li Y, Wang B, He Y, Wang Y, Xi H, Li Y, Wang Y, Wang Y, Zhu D, Jin J, Huang W, Jin L. A haplotype of the catalase gene confers an increased risk of essential hypertension in Chinese Han. Hum Mutat 2010; 31:272-278. [DOI: 10.1002/humu.21185] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
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Ezzikouri S, Feydi AEE, Afifi R, Benazzouz M, Hassar M, Pineau P, Benjelloun S. Polymorphisms in antioxidant defence genes and susceptibility to hepatocellular carcinoma in a Moroccan population. Free Radic Res 2009; 44:208-16. [DOI: 10.3109/10715760903402906] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Watanabe Y, Metoki H, Ohkubo T, Katsuya T, Tabara Y, Kikuya M, Hirose T, Sugimoto K, Asayama K, Inoue R, Hara A, Obara T, Nakura J, Kohara K, Totsune K, Ogihara T, Rakugi H, Miki T, Imai Y. Accumulation of common polymorphisms is associated with development of hypertension: a 12-year follow-up from the Ohasama study. Hypertens Res 2009; 33:129-34. [PMID: 19927152 DOI: 10.1038/hr.2009.193] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Hypertension is a complex multi-factorial and polygenic disorder. Nevertheless, most studies have focused on single-gene effects. Furthermore, a majority of these studies have been cross-sectional and diagnosed hypertension using conventional blood pressure (BP) measurements, which are known to be subject to biases, including the so-called white-coat effect. Thus, we performed a longitudinal association study to clarify the effects of polymorphism accumulation on the development of hypertension that is defined on the basis of self-measured BP at home (home BP). In 403 Japanese aged 40-79 years with home normotension (home BP <135/85 mm Hg, and not treated with antihypertensive medication at baseline), we examined the associations of 51 single-nucleotide polymorphisms (SNPs) classically nominated or reported to be associated with hypertension in the Japanese Millennium Genome Project for Hypertension with a 12-year risk of progression to home hypertension (home BP >or=135/85 mm Hg, or start of antihypertensive medication). Out of 51 SNPs, four significantly and independently predicted the risk of progression of home hypertension, even after adjustment for possible confounding factors, including baseline home BP value. These were rs3767489 near the regulator of G-protein signaling 2 (RGS2), rs4961 in adducin 1 (ADD1), rs2236957 in the calcium channel, voltage-dependent, alpha-2/delta-subunit 2 (CACNA2D2) and rs769214 in catalase (CAT). Accumulation of these SNPs significantly improved the predictive values for the development of home hypertension. In conclusion, this longitudinal study, which was based on home BP measurement, showed that accumulation of common polymorphisms reliably predicted the risk of future hypertension in the Japanese general population.
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Affiliation(s)
- Yumiko Watanabe
- Department of Clinical Pharmacology and Therapeutics, Tohoku University, Sendai, Japan
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Structural and catalytic polymorphism of human enzymes: Novel potential platforms for biomedical diagnostics. Biotechnol Adv 2009; 27:945-959. [DOI: 10.1016/j.biotechadv.2009.05.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Kokaze A, Ishikawa M, Matsunaga N, Karita K, Yoshida M, Ohtsu T, Shirasawa T, Sekii H, Ito T, Kawamoto T, Takashima Y. NADH dehydrogenase subunit-2 237 Leu/Met polymorphism modulates the effects of coffee consumption on the risk of hypertension in middle-aged Japanese men. J Epidemiol 2009; 19:231-6. [PMID: 19667492 PMCID: PMC3924125 DOI: 10.2188/jea.je20081040] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Background Habitual coffee consumption has been reported to lower blood pressure in the Japanese population. The NADH dehydrogenase subunit-2 237 leucine/methionine (ND2-237 Leu/Met) polymorphism is associated with longevity and modifies the effects of alcohol consumption on blood pressure in the Japanese population. The objective of this study was to determine whether this polymorphism also modifies the effects of coffee consumption on blood pressure or the risk of hypertension in middle-aged Japanese men. Methods A total of 398 men (mean age ± standard deviation, 53.8 ± 7.8 years) were selected from among individuals visiting the hospital for regular medical check-ups. Hypertension was defined as a systolic blood pressure ≥140 mm Hg, diastolic blood pressure ≥90 mm Hg, or antihypertensive drug treatment. Polymerase chain reaction-restriction fragment length polymorphism using the restriction enzyme AluI was performed to determine ND2-237 Leu/Met genotype. Results In subjects with ND2-237Leu, coffee consumption was significantly and negatively associated with diastolic blood pressure (P = 0.007). The odds ratio (OR) for hypertension was significantly lower in subjects with ND2-237Leu who consumed 2 or 3 cups of coffee per day than in those who consumed less than 1 cup of coffee per day (OR, 0.517; 95% confidence interval [CI], 0.276 to 0.968; P = 0.039). After adjustment, the OR remained significant (OR = 0.399; 95% CI, 0.184 to 0.869; P = 0.020). Moreover, after adjustment, the OR was significantly lower in subjects with ND2-237Leu who consumed more than 4 cups of coffee per day than in those who consumed less than 1 cup of coffee per day (OR, 0.246; 95% CI, 0.062 to 0.975; P = 0.046). However, the association between ND2-237Met genotype and hypertension did not depend on coffee consumption. Conclusions The present results suggest that the ND2-237 Leu/Met polymorphism modulates the effects of coffee consumption on hypertension risk in middle-aged Japanese men.
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Affiliation(s)
- Akatsuki Kokaze
- Department of Public Health, Showa University School of Medicine, Tokyo, Japan.
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Polonikov AV, Ivanov VP, Solodilova MA, Kozhuhov MA, Panfilov VI. Tobacco smoking, fruit and vegetable intake modify association between -21A>T polymorphism of catalase gene and risk of bronchial asthma. J Asthma 2009; 46:217-24. [PMID: 19373626 DOI: 10.1080/02770900802492103] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Although oxidative stress is a cardinal feature of bronchial asthma, the role of interactions between environmental oxidant/antioxidant exposures and antioxidant genes in asthma aetiology has yet to be determined. The present study was conducted to investigate whether two common polymorphisms -21A > T and -262C > T of catalase (CAT) gene are associated with susceptibility to asthma in a Russian population and to test the hypothesis that the asthma risk attributed to CAT genotypes could be dependent on both oxidant (tobacco smoking) and antioxidant (fruit and vegetable intake) exposures. A total of 429 unrelated Russian individuals from Central Russia were recruited in the study, including 215 asthmatics and 214 sex- and age-matched healthy controls. Genotyping analysis for the CAT gene polymorphisms was performed by PCR-RFLP assays. The frequencies of both allele -21A (OR 0.73 95%CI 0.55-0.96 p = 0.03) and -21AA CAT genotype (OR 0.42 95%CI 0.23-0.76 p = 0.004) were higher among asthmatics than among healthy controls. The frequency of -21AA genotype of the CAT gene was significantly higher in patients with allergic (OR 0.47 95%CI 0.25-0.92 p = 0.024) and nonallergic (OR 0.32 95%CI 0.14-0.71 p = 0.004) asthma in comparison with controls (at the Bonferroni corrected p value less than 0.025). Polymorphisms -21A > T and -262C > T of the catalase gene were in a positive linkage disequilibrium (p < 0.0001). Smokers who carried -21AA genotype had an increased risk of nonallergic asthma (p = 0.002), whereas nonsmoker carriers of this genotype did not have the risk of any variant of the disease. Notably, no association of CAT genotype -21AA with asthma was found in high fruit and vegetable consumers, whereas low fruit and vegetable consumers (one time per day or less often) possessing this genotype were at increased risk of both allergic (p = 0.013) and nonallergic (p = 0.008) asthma. This is the first study reporting an association of polymorphism -21A > T of the catalase gene with allergic and nonallergic asthma. We also found, for the first time, that cigarette smoking and fruit and vegetable intakes have potentially inverse modifying influences on the asthma risk in individuals with -21AA CAT genotype and that the gene-environment interactions that were found support the biologic plausibility of catalase gene for the development of bronchial asthma.
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Affiliation(s)
- A V Polonikov
- Department of Biology, Medical Genetics and Ecology, Kursk State Medical University, Kursk, Russian Federation.
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Abstract
Catalase (CAT) is part of the enzymatic defense system against reactive oxygen species (ROS), known to be involved in the pathogenesis of asbestosis. This study investigates whether CAT -262 C>T genetic polymorphism influences the risk of asbestosis in workers occupationally exposed to asbestos.The nested case-control study included 262 cases with asbestosis and 265 controls with no asbestos-related disease. Data on cumulative asbestos exposure and smoking were available. A real-time PCR assay was introduced for genotyping CAT -262 C>T promoter polymorphism.A slightly elevated risk of asbestosis was observed in subjects with the CAT -262 TT genotype compared to others (OR=1.36, CI 0.70-2.62). This risk did not change substantially after adjustment by sex, age, and smoking, but the involvement of cumulative asbestos exposure changed the OR to 1.91 (CI 0.93-3.91). These findings indicate that the CAT -262 TT genotype may be slightly associated with an increased risk of asbestosis. No synergistic effect was found between cumulative asbestos exposure and the CAT -262 TT genotype, but cumulative asbestos exposure acted as a confounder. These results are an important contribution to understanding the interactions between genetic and environmental factors that may modify the risk of asbestosis.
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Abstract
Excessive hydrogen peroxide is harmful for almost all cell components, so its rapid and efficient removal is of essential importance for aerobically living organisms. Conversely, hydrogen peroxide acts as a second messenger in signal-transduction pathways. H(2)O(2) is degraded by peroxidases and catalases, the latter being able both to reduce H(2)O(2) to water and to oxidize it to molecular oxygen. Nature has evolved three protein families that are able to catalyze this dismutation at reasonable rates. Two of the protein families are heme enzymes: typical catalases and catalase-peroxidases. Typical catalases comprise the most abundant group found in Eubacteria, Archaeabacteria, Protista, Fungi, Plantae, and Animalia, whereas catalase-peroxidases are not found in plants and animals and exhibit both catalatic and peroxidatic activities. The third group is a minor bacterial protein family with a dimanganese active site called manganese catalases. Although catalyzing the same reaction (2 H(2)O(2)--> 2 H(2)O+ O(2)), the three groups differ significantly in their overall and active-site architecture and the mechanism of reaction. Here, we present an overview of the distribution, phylogeny, structure, and function of these enzymes. Additionally, we report about their physiologic role, response to oxidative stress, and about diseases related to catalase deficiency in humans.
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Affiliation(s)
- Marcel Zamocky
- Department of Chemistry, Division of Biochemistry, BOKU-University of Natural Resources and Applied Life Sciences, Vienna, Austria.
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Kim TH, Hong JM, Oh B, Cho YS, Lee JY, Kim HL, Shin ES, Lee JE, Park EK, Kim SY. Genetic association study of polymorphisms in the catalase gene with the risk of osteonecrosis of the femoral head in the Korean population. Osteoarthritis Cartilage 2008; 16:1060-6. [PMID: 18353692 DOI: 10.1016/j.joca.2008.02.004] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2007] [Accepted: 02/01/2008] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Osteonecrosis (ON) of the femoral head frequently leads to progressive collapse of the femoral head followed by degenerative arthritis of the hip joint. Oxidative stress, which has been implicated in many pathological conditions, including vascular injury, recently has been suggested to play a part in the development of ON. Catalase (CAT) is a major antioxidant enzyme and a number of polymorphisms in the CAT have been described as being associated with several diseases, such as hypertension, diabetes mellitus, Alzheimer's disease, and vitiligo. The aim of this study was to evaluate the association of CAT gene polymorphisms with ON of the femoral head (ONFH) in a case-control study. METHODS Eight polymorphic sites of CAT were selected from public databases, and genotyped in 443 ONFH patients and 273 control subjects using the Affymetrix Targeted Genotyping (TG) 3K chip array. The association analysis of genotyped single nucleotide polymorphisms (SNPs) and haplotypes was performed with ONFH. RESULTS The -89A>T, -20T>C, +3033C>T, +14539A>T, +22348C>T, and +24413T>C polymorphisms of the CAT gene were significantly associated with the risk of ONFH in all alternative analysis models (P range; 0.0001-0.035, odds ratio [OR]: 0.52-3.47). Particularly, the minor allele of -89A>T, -20T>C and +3033C>T had a protective effect on ONFH with significance (P range: 0.0014-0.035, OR: 0.52-0.73). Further analysis based on pathological etiology showed that the genotypes of -89A>T, -20T>C, +3033C>T, +14539A>T, and +22348C>T, and +24413T>C were also associated with the risk of ONFH in each subgroup with significant P values. CONCLUSIONS These findings indicate that the polymorphisms of CAT are associated with the ONFH, and suggest that oxidative stress may play an important role in the pathogenesis of ONFH.
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Affiliation(s)
- T-H Kim
- Skeletal Diseases Genome Research Center, Kyungpook National University Hospital, 44-2 Samduk 2-ga, Jung-gu, Daegu 700-412, Republic of Korea
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Fabre EE, Raynaud-Simon A, Golmard JL, Hebert M, Dulcire X, Succari M, Myara J, Durand D, Nivet-Antoine V. Gene polymorphisms of oxidative stress enzymes: prediction of elderly renutrition. Am J Clin Nutr 2008; 87:1504-12. [PMID: 18469277 DOI: 10.1093/ajcn/87.5.1504] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND The free radical theory of aging suggests that damage caused by oxidative stress leads to impaired physiologic functions. This damage is stemmed by an adequate antioxidant status, which minimizes the occurrence of infection, thus potentially playing a role in improving nutritional status. The role played by genetic factors remains unknown. OBJECTIVE The aim of this study was to investigate whether a single nucleotide polymorphism (SNP) of a gene coding for endogenous antioxidant enzymes could influence either nutritional status or renutrition process in an elderly population. DESIGN Nutritional and inflammatory status were studied in 77 elderly outpatients and in 99 malnourished elderly inpatients over 6 wk of health care treatment. Renutrition efficiency was evaluated with use of the ratio between initial transthyretinemia and 6-wk variation. A genetic study was performed on superoxide dismutase (Ala-9Val), glutathione peroxidase (Pro197Leu), and catalase (from promoter to the first intron). RESULTS Among the SNPs studied, the G-844A, A-89T, and C-20T catalase SNPs could each be markers predicting renutrition efficiency. These catalase mutant alleles were associated with a lower efficiency of renutrition in malnourished elderly subjects, regardless of initial nutritional and inflammatory status. Genotyping one of these catalase SNPs could make it possible to identify a high-risk subpopulation of mutant allele carriers within the elderly polypathological population. CONCLUSION In a malnutrition setting, this subpopulation should be given personalized health care, including a strengthened refeeding program. Thus, catalase genotyping could enable earlier recovery of satisfactory nutritional status and thus avoid the consequences of malnutrition, which are especially deleterious in the elderly.
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Affiliation(s)
- Emmanuelle E Fabre
- Biochemistry Department, Charles Foix Hospital, AP-HP, Ivry sur Seine, France
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Flekac M, Skrha J, Hilgertova J, Lacinova Z, Jarolimkova M. Gene polymorphisms of superoxide dismutases and catalase in diabetes mellitus. BMC MEDICAL GENETICS 2008; 9:30. [PMID: 18423055 PMCID: PMC2386118 DOI: 10.1186/1471-2350-9-30] [Citation(s) in RCA: 105] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2007] [Accepted: 04/21/2008] [Indexed: 11/16/2022]
Abstract
Background Reactive oxygen species generated by hyperglycaemia modify structure and function of lipids, proteins and other molecules taking part in chronic vascular changes in diabetes mellitus (DM). Low activity of scavenger enzymes has been observed in patients with DM. Protective role of scavenger enzymes may be deteriorated by oxidative stress. This study was undertaken to investigate the association between gene polymorphisms of selected antioxidant enzymes and vascular complications of DM. Results Significant differences in allele and genotype distribution among T1DM, T2DM and control persons were found in SOD1 and SOD2 genes but not in CAT gene (p < 0,01). Serum SOD activity was significantly decreased in T1DM and T2DM subjects compared to the control subjects (p < 0,05). SOD1 and SOD2 polymorphisms may affect SOD activity. Serum SOD activity was higher in CC than in TT genotype of SOD2 gene (p < 0,05) and higher in AA than in CC genotype of SOD1 gene (p < 0,05). Better diabetes control was found in patients with CC than with TT genotype of SOD2 gene. Significantly different allele and genotype frequencies of SOD2 gene polymorphism were found among diabetic patients with macroangiopathy and those without it. No difference was associated with microangiopathy in all studied genes. Conclusion The results of our study demonstrate that oxidative stress in DM can be accelerated not only due to increased production of ROS caused by hyperglycaemia but also by reduced ability of antioxidant defense system caused at least partly by SNPs of some scavenger enzymes.
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Affiliation(s)
- Milan Flekac
- 3rd Dept, of Internal Medicine, 1st Faculty of Medicine, Charles University, Prague, Czech Republic.
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Islam T, McConnell R, Gauderman WJ, Avol E, Peters JM, Gilliland FD. Ozone, oxidant defense genes, and risk of asthma during adolescence. Am J Respir Crit Care Med 2007; 177:388-95. [PMID: 18048809 DOI: 10.1164/rccm.200706-863oc] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
RATIONALE Although oxidative stress is a cardinal feature of asthma, the roles of oxidant air pollutants and antioxidant genes heme oxygenase 1 (HMOX-1), catalase (CAT), and manganese superoxide dismutase (MNSOD) in asthma pathogenesis have yet to be determined. OBJECTIVES We hypothesized that the functional polymorphisms of HMOX-1 ([GT](n) repeat), CAT (-262C>T -844C>T), and MNSOD (Ala-9Val) are associated with new-onset asthma, and the effects of these variants vary by exposure to ozone, a potent oxidant air pollutant. METHODS We assessed this hypothesis in a population-based cohort of non-Hispanic (n = 1,125) and Hispanic white (n = 586) children who resided in 12 California communities and who were followed annually for 8 years to ascertain new-onset asthma. MEASUREMENTS AND MAIN RESULTS Air pollutants were continuously measured in each of the study communities during the 8 years of study follow-up. HMOX-1 "short" alleles (<23 repeats) were associated with a reduced risk for new-onset asthma among non-Hispanic whites (hazard ratio [HR], 0.64; 95% confidence interval [CI], 0.41-0.99). This protective effect was largest in children residing in low-ozone communities (HR, 0.48; 95% CI, 0.25-0.91) (interaction P value = 0.003). Little evidence for an association with HMOX-1 was observed among Hispanic children. In contrast, Hispanic children with a variant of the CAT-262 "T" allele (CT or TT) had an increased risk for asthma (HR, 1.78; P value = 0.01). The effects of these polymorphisms were not modified by personal smoking or secondhand-smoke exposure. CONCLUSIONS Functional promoter variants in CAT and HMOX-1 showed ethnicity-specific associations with new-onset asthma. Oxidant gene protection was restricted to children living in low-ozone communities.
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Affiliation(s)
- Talat Islam
- M.D. Department of Preventive Medicine, USC Keck School of Medicine, 1540 Alcazar Street, CHP 236, Los Angeles, CA 90033, USA
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Zarbock R, Hendig D, Szliska C, Kleesiek K, Götting C. Pseudoxanthoma elasticum: genetic variations in antioxidant genes are risk factors for early disease onset. Clin Chem 2007; 53:1734-40. [PMID: 17693525 DOI: 10.1373/clinchem.2007.088211] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND Pseudoxanthoma elasticum (PXE) is a rare hereditary disorder characterized by progressive calcification and fragmentation of elastic fibers in connective tissues. PXE is caused by mutations in the ABCC6 gene, which encodes the membrane transporter multidrug resistance-associated protein 6. Chronic oxidative stress was recently suggested to play a crucial role in the pathogenesis of the disease. Our aim was to investigate the association of PXE with genetic variation in genes coding for antioxidant enzymes. METHODS We used restriction fragment length polymorphism and allele-specific PCR analyses to evaluate the distribution of single-nucleotide polymorphisms in the genes encoding catalase (CAT), superoxide dismutase 2 (SOD2), and glutathione peroxidase 1 (GPX1) in DNA samples from 117 German PXE patients and 117 healthy age- and sex-matched control individuals. RESULTS The investigated genetic variants had previously been shown to affect the activities of these antioxidant enzymes. We found a correlation between genotype and age of disease onset for polymorphisms in CAT (c.-262C>T), SOD2 (c.47C>T), and GPX1 (c.593C>T). Furthermore, the age of disease onset was inversely correlated with the number of mutated alleles, indicating a cumulative effect on the time of disease onset [mean (SD) age of 40.9 (13.6) years, 32.4 (16.3) years, and 25.7 (15.9) years for carriers of 0, 1-2, and >2 mutated alleles, respectively; P = 0.03]. CONCLUSION Our findings demonstrate that increased oxidative stress due to activity-affecting polymorphisms in genes encoding antioxidant enzymes leads to earlier PXE onset.
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Affiliation(s)
- Ralf Zarbock
- Institut für Laboratoriums- und Transfusionsmedizin, Herz- und Diabeteszentrum Nordrhein-Westfalen, Universitätsklinik der Ruhr-Universität Bochum, Bad Oeynhausen, Germany
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