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Lewandowski Ł, Urbanowicz I, Kepinska M, Milnerowicz H. Concentration/activity of superoxide dismutase isozymes and the pro-/antioxidative status, in context of type 2 diabetes and selected single nucleotide polymorphisms (genes: INS, SOD1, SOD2, SOD3) - Preliminary findings. Biomed Pharmacother 2021; 137:111396. [PMID: 33761612 DOI: 10.1016/j.biopha.2021.111396] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 02/04/2021] [Accepted: 02/10/2021] [Indexed: 11/29/2022] Open
Abstract
The alterations in concentration/activity of superoxide dismutase isozymes in the context of type 2 diabetes or obesity are well-described. Moreover, many hereditary factors, including single-nucleotide polymorphisms (SNPs) of genes for coding insulin, insulin receptors, or insulin receptor substrates (INS, INSR, IRS1, IRS2) or superoxide dismutase isozymes (SOD1, SOD2, SOD3), have been linked with the incidence of obesity and diabetes. However, the underlying changes in the plasma concentration/activity of superoxide dismutase isozymes and their potential connection with the said hereditary factors remain unexplored. Previously, we have observed that the plasma concentration/activity of superoxide dismutase isozymes differs in the context of obesity and/or rs2234694 (SOD1) and rs4880 (SOD2) and that the concentrations of SOD1, SOD2, SOD3 are correlated with each other. Intersexual variability of SOD1 concentration was detected regardless of obesity. In this study, the variability of concentration/activity of superoxide dismutase isozymes in plasma is considered in the context of type 2 diabetes and/or SNPs: rs2234694 (SOD1), rs5746105 (SOD2), rs4880 (SOD2), rs927450 (SOD2), rs8192287 (SOD3). Genotypic variability of SNP rs3842729 (INS), previously studied in the context of insulin-dependent diabetes, is investigated in terms of selected clinical parameters associated with type 2 diabetes. This study revealed higher SOD1 concentration in diabetic men compared to women, and extremely high SOD1 concentration, higher total superoxide dismutase, and copper-zinc superoxide dismutase activity, and lower superoxide dismutase and copper-zinc superoxide dismutase activity (when adjusted for the concentration of SODs) in the diabetic group regardless of sex. Multiple logistic regression, applied to explore possible links between the studied SNPs and other factors with the odds of type 2 diabetes or obesity, revealed that the genotypic variability of rs4880 (SOD2) could affect these odds, supporting the findings of several other studies.
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Affiliation(s)
- Łukasz Lewandowski
- Department of Biomedical and Environmental Analyses, Faculty of Pharmacy, Wroclaw Medical University, Borowska Street 211, 50-556 Wrocław, Poland.
| | - Iwona Urbanowicz
- Department of Clinical Chemistry and Laboratory Hematology, Faculty of Pharmacy, Wroclaw Medical University, Borowska Street 211A, 50-556 Wrocław, Poland
| | - Marta Kepinska
- Department of Biomedical and Environmental Analyses, Faculty of Pharmacy, Wroclaw Medical University, Borowska Street 211, 50-556 Wrocław, Poland
| | - Halina Milnerowicz
- Department of Biomedical and Environmental Analyses, Faculty of Pharmacy, Wroclaw Medical University, Borowska Street 211, 50-556 Wrocław, Poland
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Brand MD. Riding the tiger - physiological and pathological effects of superoxide and hydrogen peroxide generated in the mitochondrial matrix. Crit Rev Biochem Mol Biol 2020; 55:592-661. [PMID: 33148057 DOI: 10.1080/10409238.2020.1828258] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Elevated mitochondrial matrix superoxide and/or hydrogen peroxide concentrations drive a wide range of physiological responses and pathologies. Concentrations of superoxide and hydrogen peroxide in the mitochondrial matrix are set mainly by rates of production, the activities of superoxide dismutase-2 (SOD2) and peroxiredoxin-3 (PRDX3), and by diffusion of hydrogen peroxide to the cytosol. These considerations can be used to generate criteria for assessing whether changes in matrix superoxide or hydrogen peroxide are both necessary and sufficient to drive redox signaling and pathology: is a phenotype affected by suppressing superoxide and hydrogen peroxide production; by manipulating the levels of SOD2, PRDX3 or mitochondria-targeted catalase; and by adding mitochondria-targeted SOD/catalase mimetics or mitochondria-targeted antioxidants? Is the pathology associated with variants in SOD2 and PRDX3 genes? Filtering the large literature on mitochondrial redox signaling using these criteria highlights considerable evidence that mitochondrial superoxide and hydrogen peroxide drive physiological responses involved in cellular stress management, including apoptosis, autophagy, propagation of endoplasmic reticulum stress, cellular senescence, HIF1α signaling, and immune responses. They also affect cell proliferation, migration, differentiation, and the cell cycle. Filtering the huge literature on pathologies highlights strong experimental evidence that 30-40 pathologies may be driven by mitochondrial matrix superoxide or hydrogen peroxide. These can be grouped into overlapping and interacting categories: metabolic, cardiovascular, inflammatory, and neurological diseases; cancer; ischemia/reperfusion injury; aging and its diseases; external insults, and genetic diseases. Understanding the involvement of mitochondrial matrix superoxide and hydrogen peroxide concentrations in these diseases can facilitate the rational development of appropriate therapies.
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Kitada M, Xu J, Ogura Y, Monno I, Koya D. Manganese Superoxide Dismutase Dysfunction and the Pathogenesis of Kidney Disease. Front Physiol 2020; 11:755. [PMID: 32760286 PMCID: PMC7373076 DOI: 10.3389/fphys.2020.00755] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 06/11/2020] [Indexed: 12/12/2022] Open
Abstract
The mitochondria are a major source of reactive oxygen species (ROS). Superoxide anion (O2•–) is produced by the process of oxidative phosphorylation associated with glucose, amino acid, and fatty acid metabolism, resulting in the production of adenosine triphosphate (ATP) in the mitochondria. Excess production of reactive oxidants in the mitochondria, including O2•–, and its by-product, peroxynitrite (ONOO–), which is generated by a reaction between O2•– with nitric oxide (NO•), alters cellular function via oxidative modification of proteins, lipids, and nucleic acids. Mitochondria maintain an antioxidant enzyme system that eliminates excess ROS; manganese superoxide dismutase (Mn-SOD) is one of the major components of this system, as it catalyzes the first step involved in scavenging ROS. Reduced expression and/or the activity of Mn-SOD results in diminished mitochondrial antioxidant capacity; this can impair the overall health of the cell by altering mitochondrial function and may lead to the development and progression of kidney disease. Targeted therapeutic agents may protect mitochondrial proteins, including Mn-SOD against oxidative stress-induced dysfunction, and this may consequently lead to the protection of renal function. Here, we describe the biological function and regulation of Mn-SOD and review the significance of mitochondrial oxidative stress concerning the pathogenesis of kidney diseases, including chronic kidney disease (CKD) and acute kidney injury (AKI), with a focus on Mn-SOD dysfunction.
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Affiliation(s)
- Munehiro Kitada
- Department of Diabetology and Endocrinology, Kanazawa Medical University, Uchinada, Japan.,Division of Anticipatory Molecular Food Science and Technology, Medical Research Institute, Kanazawa Medical University, Uchinada, Japan
| | - Jing Xu
- Department of Diabetology and Endocrinology, Kanazawa Medical University, Uchinada, Japan
| | - Yoshio Ogura
- Department of Diabetology and Endocrinology, Kanazawa Medical University, Uchinada, Japan
| | - Itaru Monno
- Department of Diabetology and Endocrinology, Kanazawa Medical University, Uchinada, Japan
| | - Daisuke Koya
- Department of Diabetology and Endocrinology, Kanazawa Medical University, Uchinada, Japan.,Division of Anticipatory Molecular Food Science and Technology, Medical Research Institute, Kanazawa Medical University, Uchinada, Japan
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Zha T, Su F, Liu X, Yang C, Liu L. Role of Long Non-Coding RNA (LncRNA) LINC-PINT Downregulation in Cardiomyopathy and Retinopathy Progression Among Patients with Type 2 Diabetes. Med Sci Monit 2019; 25:8509-8514. [PMID: 31711064 PMCID: PMC6873639 DOI: 10.12659/msm.918358] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background Despite the acknowledgement that LncRNA LINC-PINT may inhibit tumor cell invasion in human cancers, it is not yet determined when it comes to diabetes and its related complications. Material/Methods There were 244 patients with T2D and 126 healthy volunteers were admitted to People’s Hospital of Xinjiang Uygur Autonomous Region Hospital. Fasting blood (5 mL) was obtained from the patients and controls a day after admission. The diabetes patients’ fasting blood was extracted once every 6 months during follow-up. The total RNA was extracted and then used for detecting the expression of LINC-PINT. Results A comparison was made in this study, where LINC-PINT did not experience significant downregulation level in the majority of those suffering diabetes complications when in contrast to healthy controls, while LINC-PINT expression was found in diabetics. The follow-up study showed that LINC-PINT was downregulated in patients who developed cardiomyopathy and retinopathy or both but not in patients who developed other complications. Treatment with high glucose limited the extent of LINC-PINT expression in the ARPE-19 and AC16 cells. While the overexpression of LINC-PINT increased the viability of ARPE-19 and AC16 cells, siRNA-mediated silencing of LINC-PINT elicited the opposite effect. Conclusions Hence, we concluded that the overexpression of LINC-PINT may exhibit inhibitory effects on the progression of cardiomyopathy and retinopathy among patients with type 2 diabetes.
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Affiliation(s)
- Tianjian Zha
- Department of Burns, Wound Repair Surgery, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang, China (mainland)
| | - Fuzeng Su
- Department of Burns, Wound Repair Surgery, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang, China (mainland)
| | - Xiaolong Liu
- Department of Burns, Wound Repair Surgery, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang, China (mainland)
| | - Chunfeng Yang
- Department of Burns, Wound Repair Surgery, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang, China (mainland)
| | - Lihua Liu
- Department of Burns, Wound Repair Surgery, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang, China (mainland)
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Chao CT, Huang JW, Chiang CK, Chen YC, Fang CC, Hu FC, Chang CC, Yen CJ. Diabetes mellitus, superoxide dismutase and peroxisome proliferator activated receptor gamma polymorphisms modify the outcome of end-stage renal disease patients of Han Chinese origin. Nephrology (Carlton) 2018; 23:117-125. [PMID: 27925431 DOI: 10.1111/nep.12975] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 11/15/2016] [Accepted: 11/29/2016] [Indexed: 12/14/2022]
Abstract
AIM Increased oxidative stress significantly modifies the outcome of patients with diabetes mellitus (DM) and end-stage renal disease (ESRD), and is counteracted by antioxidative capacity. We aimed to investigate whether antioxidant single nucleotide polymorphisms (SNPs) influence the outcome of ESRD individuals and the influences exerted by DM, which has not been tested before. METHODS We prospectively enrolled multi-centre ESRD patients of Han Chinese origin between 2002 and 2003, recording their antioxidant (superoxide dismutase [SOD2], glutathione peroxidase [GPX1]) and peroxisome proliferator activated receptor-γ (PPAR-γ) genotyping results, and stratified based on DM. They were followed up until 2008, with risk factors for mortality analyzed by Cox proportional hazard regression. RESULTS We discovered that diabetic ESRD carriers of CC genotype of SOD2 exon 2 had an increased risk of mortality compared to non-diabetic ones with other genotypes (hazard ratio [HR] 4.04, P = 0.04), while GPX1 SNPs had no influence. Interactions between SOD2 and PPAR-γ SNPs regarding the mortality influence were also detected (for SOD2 CC genotype x PPAR-γ exon 6 CT genotype, HR 3.19, P = 0.008), suggesting the importance of considering a combination panel of SNPs on patient survival. CONCLUSION This might be the largest study focusing on the relationship between antioxidant SNPs and the outcomes of diabetic ESRD patients of Han Chinese origin. More studies are needed to validate our findings.
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Affiliation(s)
- Chia-Ter Chao
- Department of Medicine, National Taiwan University Hospital Jinshan branch, New Taipei City, Taiwan.,Graduate Institute of Toxicology, National Taiwan University, Taipei, Taiwan.,Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Jenq-Wen Huang
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Chih-Kang Chiang
- Graduate Institute of Toxicology, National Taiwan University, Taipei, Taiwan.,Department of Integrated Diagnostics and Therapeutics, National Taiwan University Hospital, Taipei, Taiwan
| | - Yen-Ching Chen
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Cheng-Chung Fang
- Department of Emergency Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Fu-Chang Hu
- Institute of Clinical Medicine, National Taiwan University, Taipei, Taiwan
| | - Chen-Chih Chang
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Chung-Jen Yen
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan.,Department of Geriatric Medicine and Gerontology, National Taiwan University Hospital, Taipei, Taiwan
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Huang L, Lyu J, Liu QP, Chen C, Wang T. MnSOD Val16Ala polymorphism associated with retinopathy risk in diabetes: a PRISMA-compliant Meta-analysis of case-control studies. Int J Ophthalmol 2017; 10:639-645. [PMID: 28503440 DOI: 10.18240/ijo.2017.04.22] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 10/26/2016] [Indexed: 11/23/2022] Open
Abstract
AIM To investigate the association of Manganese superoxide dismutase (MnSOD) Val16Ala polymorphism with diabetic retinopathy (DR). METHODS PubMed, Embase, China National Knowledge Infrastructure, and Wanfang databases were searched. The pooled odds ratios (ORs) and 95% confidence intervals (CIs) were calculated to evaluate the strength of the association. Subgroup, sensitivity, and cumulative analyses were performed. Publication bias was also analyzed. RESULTS Eight studies were included in the pooled analysis. The MnSOD Val16Ala polymorphism was associated with the risk of DR under the dominant model (OR=0.66, 95%CI=0.48-0.91, P<0.0001), this result was demonstrated to be relatively stable in cumulative analysis. No significant publication bias was found. This polymorphism was also associated with the risk of DR in Caucasians under the dominant model (OR=0.64, 95%CI=0.42-0.97, P=0.04,) and in Asians under the recessive model (OR=0.31, 95%CI=0.11-0.88, P=0.03). CONCLUSION These findings suggest that the MnSOD Val16Ala polymorphism is a risk factor for DR, and that more attention should be paid to carriers of these susceptibility genes.
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Affiliation(s)
- Lei Huang
- Department of Ophthalmology, Xi'an No.1 Hospital, Xi'an 710002, Shaanxi Province, China
| | - Jun Lyu
- Clinical Research Center, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi Province, China
| | - Qiu-Ping Liu
- Department of Ophthalmology, Xi'an No.1 Hospital, Xi'an 710002, Shaanxi Province, China
| | - Cheng Chen
- Department of Ophthalmology, Xi'an No.1 Hospital, Xi'an 710002, Shaanxi Province, China
| | - Tong Wang
- Department of Ophthalmology, Xi'an No.1 Hospital, Xi'an 710002, Shaanxi Province, China
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Buraczynska M, Buraczynska K, Dragan M, Ksiazek A. Pro198Leu Polymorphism in the Glutathione Peroxidase 1 Gene Contributes to Diabetic Peripheral Neuropathy in Type 2 Diabetes Patients. Neuromolecular Med 2017; 19:147-153. [PMID: 27592002 PMCID: PMC5334407 DOI: 10.1007/s12017-016-8438-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 08/26/2016] [Indexed: 12/14/2022]
Abstract
Glutathione peroxidase 1 (Gpx1) is an endogenous antioxidant enzyme. The T allele of the Pro198Leu polymorphism in the Gpx1 (rs1050450, 198C > T) gene is associated with reduced enzyme activity. The aim of this study was to evaluate the association between Pro198Leu polymorphism and risk of diabetic peripheral neuropathy (DPN). We examined 1244 T2DM patients and 730 healthy controls. In the patient group, 33 % had diabetic peripheral neuropathy. All subjects were genotyped for the Gpx1 Pro198Leu polymorphism by polymerase chain reaction and restriction analysis. A significant increase in the T allele and TT genotype frequencies was observed in DPN patients compared to those without DPN (OR 1.55, 95 % CI 1.30-1.85 and 1.89, 95 % CI 1.30-2.74, respectively). The association remained significant after correction for age, disease duration, HbA1c and BMI. When distribution of T allele was compared between DPN+ and DPN- subgroups and controls, OR was 1.54 for DPN+ and 1.00 for DPN- patients. In conclusion, our findings suggest that Gpx1 Pro198Leu genotypes are significantly associated with the risk of diabetic peripheral neuropathy in patients with T2DM. The study provides new clinically relevant information regarding genetic determinants of susceptibility to diabetic neuropathy.
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Affiliation(s)
- Monika Buraczynska
- Department of Nephrology, Medical University of Lublin, Dr K. Jaczewskiego 8, 20-954 Lublin, Poland
| | - Kinga Buraczynska
- Department of Neurology, Medical University of Lublin, Lublin, Poland
| | - Michal Dragan
- Department of Nephrology, Medical University of Lublin, Dr K. Jaczewskiego 8, 20-954 Lublin, Poland
| | - Andrzej Ksiazek
- Department of Nephrology, Medical University of Lublin, Dr K. Jaczewskiego 8, 20-954 Lublin, Poland
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Hou S, Zhang T, Li Y, Guo F, Jin X. Glycyrrhizic Acid Prevents Diabetic Nephropathy by Activating AMPK/SIRT1/PGC-1 α Signaling in db/db Mice. J Diabetes Res 2017; 2017:2865912. [PMID: 29238727 PMCID: PMC5697128 DOI: 10.1155/2017/2865912] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 09/01/2017] [Accepted: 09/19/2017] [Indexed: 12/14/2022] Open
Abstract
Diabetic nephropathy (DN) is a major cause of end-stage renal disease (ESRD). Glycyrrhizic acid (GA) is an effective inhibitor of reactive oxygen species (ROS) production. We investigated the role of GA in the progression of renal injury in DN. Albumin (Alb)/creatinine (crea) levels were significantly lower, and renal histopathology was attenuated in the diabetic db/db mice that were treated with GA (15 mg/kg via intraperitoneal injection) once per day for eight weeks. These changes were associated with significantly lower levels of α-smooth muscle actin (α-SMA) and transforming growth factor β1 (TGF-β1) expression. Additionally, diabetic db/db mice displayed more terminal deoxynucleotidyl transferase-mediated nick-end labeling- (TUNEL-) positive nuclei and diabetes-induced ROS production in the kidneys, and these effects were attenuated by the treatment with GA, which activated adenosine monophosphate-activated protein kinase (AMPK)/silent information regulator 1 (SIRT1)/peroxisome proliferator-activated receptor-γ coactivator-1α (PGC-1α) signaling in the kidneys. In summary, in diabetic db/db mice, the effect of GA on DN involved, in part, the inhibition of ROS and the activation of AMPK/SIRT1/PGC-1α signaling in the kidneys. GA, therefore, shows therapeutic potential for preventing and treating DN.
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Affiliation(s)
- Shaozhang Hou
- Department of Pathology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004, China
- Institute of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004, China
| | - Ting Zhang
- Department of Pathology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004, China
- Institute of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004, China
| | - Yuan Li
- Department of Nursing, Ningxia Medical University, Yinchuan 750004, China
| | - Fengying Guo
- Department of Pathology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004, China
- Institute of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004, China
| | - Xiu Jin
- Affiliated Hospital of Jining Medical College, Jining 272000, China
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Wang X, Hai C. Novel insights into redox system and the mechanism of redox regulation. Mol Biol Rep 2016; 43:607-28. [DOI: 10.1007/s11033-016-4022-y] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Accepted: 05/26/2016] [Indexed: 12/20/2022]
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Kidir V, Uz E, Yigit A, Altuntas A, Yigit B, Inal S, Uz E, Sezer MT, Yilmaz HR. Manganese superoxide dismutase, glutathione peroxidase and catalase gene polymorphisms and clinical outcomes in acute kidney injury. Ren Fail 2016; 38:372-7. [PMID: 26787049 DOI: 10.3109/0886022x.2015.1135468] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
INTRODUCTION The aim of this study was to evaluate the potential association of single gene polymorphisms of manganese superoxide dismutase (MnSOD), glutathione peroxidase 1 (GPX1) and catalase (CAT) with clinical outcomes of acute kidney injury (AKI). MATERIALS AND METHODS Ninety AKI patients and 101 healthy volunteers were included in the study. Determination of MnSOD rs4880, GPX1 rs1050450 and CAT rs769217 polymorphisms was performed using real-time polymerase chain reaction amplification. The duration of hospitalization of AKI patients, dialysis and intensive care requirements, sepsis, oliguria and in-hospital mortality rates were assessed. RESULTS The MnSOD, GPX1 and CAT genotypes and allele frequencies of AKI patients did not differ significantly from those of healthy controls. In patients with a T allele in the ninth exon of the CAT gene, intensive care requirements were greater than those of patients with the CC genotype (p = 0.04). In addition, sepsis and in-hospital mortality were observed significantly more frequently in patients with a T allele in the ninth exon of the CAT gene (p = 0.03). Logistic regression analysis determined that bearing a T allele was the primary determinant of intensive care requirements and in-hospital mortality, independent of patient age, gender, presence of diabetes and dialysis requirements (OR 6.10, 95% CI 1.34-27.81, p = 0.02 and OR 10.25, 95% CI 1.13-92.80, p = 0.04, respectively). CONCLUSION Among AKI patients in the Turkish population, hospital morbidity and mortality were found to be more frequent in patients bearing a T allele of the rs769217 polymorphism of the CAT gene.
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Affiliation(s)
- Veysel Kidir
- a Division of Nephrology, Department of Internal Medicine, Faculty of Medicine , Suleyman Demirel University , Isparta , Turkey
| | - Efkan Uz
- b Department of Medical Biochemistry, Faculty of Medicine , Suleyman Demirel University , Isparta , Turkey
| | - Ayse Yigit
- c Department of Medical Biology, Faculty of Medicine , Suleyman Demirel University , Isparta , Turkey
| | - Atila Altuntas
- a Division of Nephrology, Department of Internal Medicine, Faculty of Medicine , Suleyman Demirel University , Isparta , Turkey
| | - Barbaros Yigit
- c Department of Medical Biology, Faculty of Medicine , Suleyman Demirel University , Isparta , Turkey
| | - Salih Inal
- a Division of Nephrology, Department of Internal Medicine, Faculty of Medicine , Suleyman Demirel University , Isparta , Turkey
| | - Ebru Uz
- d Division of Nephrology, Department of Internal Medicine, Faculty of Medicine , Atatürk Education and Research Hospital, Yildirim Beyazit University , Ankara , Turkey
| | - Mehmet Tugrul Sezer
- a Division of Nephrology, Department of Internal Medicine, Faculty of Medicine , Suleyman Demirel University , Isparta , Turkey
| | - H Ramazan Yilmaz
- e Department of Medical Biology, Faculty of Medicine , Mevlana University , Konya , Turkey
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