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Zhong O, Hu J, Wang J, Tan Y, Hu L, Lei X. Antioxidant for treatment of diabetic complications: A meta-analysis and systematic review. J Biochem Mol Toxicol 2022; 36:e23038. [PMID: 35307907 DOI: 10.1002/jbt.23038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 01/07/2022] [Accepted: 03/02/2022] [Indexed: 01/01/2023]
Abstract
Antioxidants may provide a complementary treatment for patients with chronic diseases. Nevertheless, studies that have measured the effects of antioxidant on diabetes complications have provided conflicting results. This study aimed to elucidate the association between antioxidant and diabetic complications and to develop robust evidence for clinical decisions by systematic reviews and meta-analysis. PubMed, Embase, The Cochrane Library, Web of Science, Scopus databases were searched to collect clinical studies related to the efficacy of antioxidants in the treatment of diabetes complications from inception to May 5, 2021. Statistical meta-analyses were performed using the RevMan 5.4 software. Stata16 software was used to detect publication bias. The data of diabetic nephropathy (DN), diabetic nonalcoholic fatty liver disease (NAFLD), and diabetic periodontitis were collected to analyze the effect of antioxidant on diabetes and the above three complications. The meta-analysis results showed that antioxidant treatment was associated with significantly changes in the fasting plasma glucose (FPG) (standardized mean difference [SMD]: - 0.21 [95% confidence interval [CI]: - 0.33, -0.10], p < 0.001), hemoglobin A1c (HbA1c) (MD: - 0.41 [95% CI: - 0.63, -0.18], p < 0.001), total antioxidant capacity (TAC) (SMD: 0.44 [95% CI: 0.24, 0.63], p < 0.001) and malondialdehyde (MDA) (SMD: - 0.82 [95% CI: - 1.24, -0.41], p < 0.001) than the control group. Antioxidant supplements have the potential to treat three complications of diabetes. In conclusion, the meta-analysis results indicate that antioxidant treatment is effective clinically for diabetes mellitus and its complications.
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Affiliation(s)
- Ou Zhong
- Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Jialin Hu
- Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Jinyuan Wang
- Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Yongpeng Tan
- Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Linlin Hu
- Reproductive Medicine Center, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Xiaocan Lei
- Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, Hengyang, Hunan, China
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Oxidative Stress Markers in Chronic Kidney Disease with Emphasis on Diabetic Nephropathy. Antioxidants (Basel) 2020; 9:antiox9100925. [PMID: 32992565 PMCID: PMC7600946 DOI: 10.3390/antiox9100925] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 09/20/2020] [Accepted: 09/24/2020] [Indexed: 02/07/2023] Open
Abstract
Diabetes prevalence is increasing worldwide, especially through the increase of type 2 diabetes. Diabetic nephropathy occurs in up to 40% of diabetic patients and is the leading cause of end-stage renal disease. Various factors affect the development and progression of diabetic nephropathy. Hyperglycaemia increases free radical production, resulting in oxidative stress, which plays an important role in the pathogenesis of diabetic nephropathy. Free radicals have a short half-life and are difficult to measure. In contrast, oxidation products, including lipid peroxidation, protein oxidation, and nucleic acid oxidation, have longer lifetimes and are used to evaluate oxidative stress. In recent years, different oxidative stress biomarkers associated with diabetic nephropathy have been found. This review summarises current evidence of oxidative stress biomarkers in patients with diabetic nephropathy. Although some of them are promising, they cannot replace currently used clinical biomarkers (eGFR, proteinuria) in the development and progression of diabetic nephropathy.
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Repetto EM, Wiszniewski M, Bonelli AL, Vecino CV, Martinez Calejman C, Arias P, Cymeryng CB. Impaired HPA axis function in diabetes involves adrenal apoptosis and phagocytosis. Endocrine 2019; 63:602-614. [PMID: 30242601 DOI: 10.1007/s12020-018-1755-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 09/08/2018] [Indexed: 11/26/2022]
Abstract
PURPOSE The aim of the present study was to analyze the involvement of oxidative stress and inflammation in the modulation of glucocorticoid production in the adrenal cortex of diabetic rats. METHODS Male Wistar rats were treated with or without streptozotocin (STZ, an insulinopenic model of diabetes) and either α-lipoic (90 mg/kg ip.), α-tocopherol (200 mg/kg po.) or with STZ and supplemented with insulin (STZ + INS: 2.5U/day) for 4 weeks. Oxidative/nitrosative stress parameters and antioxidant enzymes were determined in adrenocortical tissues. Apoptosis and macrophage activation were evaluated by immunohistochemistry (TUNEL and ED1+). Basal and ACTH-stimulated corticosterone production were assessed by RIA and plasma ACTH levels were determined by an immunometric assay. RESULTS Diabetic rats showed a diminished response to exogenous ACTH stimulation along with higher basal corticosterone and lower plasma ACTH levels. In the adrenal cortex we determined an increase in the levels of lipoperoxides, S-nitrosothiols, nitric oxide synthase activity and nitro-tyrosine modified proteins while catalase activity and heme oxygenase-1 expression levels were also elevated. Antioxidant treatments were effective in the prevention of these effects, and in the increase in the number of apoptotic and phagocytic (ED1+) cells detected in diabetic rats. No changes were observed in the STZ + INS group. CONCLUSIONS Generation of oxidative/nitrosative stress in the adrenal cortex of diabetic rats leads to the induction of apoptosis and the activation of adrenocortical macrophages and is associated with an elevated basal corticosteronemia and the loss of the functional capacity of the gland.
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Affiliation(s)
- Esteban M Repetto
- Departamento de Bioquímica Clínica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina.
- Facultad de Medicina, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Centro de Estudios Farmacológicos y Botánicos (CEFYBO), Laboratorio de Endocrinología Molecular (LEM), Universidad de Buenos Aires, Buenos Aires, Argentina.
| | - Morena Wiszniewski
- Facultad de Medicina, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Centro de Estudios Farmacológicos y Botánicos (CEFYBO), Laboratorio de Endocrinología Molecular (LEM), Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Ana L Bonelli
- Facultad de Medicina, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Centro de Estudios Farmacológicos y Botánicos (CEFYBO), Laboratorio de Endocrinología Molecular (LEM), Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Carolina V Vecino
- Facultad de Medicina, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Centro de Estudios Farmacológicos y Botánicos (CEFYBO), Laboratorio de Endocrinología Molecular (LEM), Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Camila Martinez Calejman
- Facultad de Medicina, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Centro de Estudios Farmacológicos y Botánicos (CEFYBO), Laboratorio de Endocrinología Molecular (LEM), Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Pablo Arias
- Departamento de Fisiología, Facultad de Medicina, Universidad Nacional de Rosario, Rosario, Argentina
| | - Cora B Cymeryng
- Facultad de Medicina, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Centro de Estudios Farmacológicos y Botánicos (CEFYBO), Laboratorio de Endocrinología Molecular (LEM), Universidad de Buenos Aires, Buenos Aires, Argentina
- Departamento de Bioquímica Humana, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
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Develaraja S, Reddy A, Yadav M, Jain S, Yadav H. Whole Grains in Amelioration of Metabolic Derangements. ACTA ACUST UNITED AC 2016; 4:1-11. [PMID: 28944285 DOI: 10.15226/jnhfs.2016.00173] [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: 12/24/2022]
Abstract
Daily diet influences whole body metabolism, and intricately linked to the prevention or progression of metabolic diseases including obesity, diabetes and cardiovascular diseases. Several epidemiological and large scale studies have shown that diets enriched with whole grains improves metabolic function and protect from the development of metabolic diseases. Direct impact of whole grain diet can be mediated on several levels of metabolic functions i.e. reduced glycemic index, improved fat oxidation potential, increased cholesterol clearance or decreased cholesterol biosynthesis and modulation of gut microbiome. In this article we reviewed several studies indicating the beneficial effects of whole grain diets on metabolic functions, as well as discussed the potential active phytochemicals present in these whole grain foods to contribute in modulation of metabolic function in our body.
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Affiliation(s)
- Samir Develaraja
- University of Pennsylvania, College of Arts and Sciences, Philadelphia, PA
| | - Anup Reddy
- West Virginia University School of Medicine, Robert C. Byrd Health Sciences Center, Morgantown, USA
| | | | - Shalini Jain
- National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, USA
| | - Hariom Yadav
- National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, USA
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Myrciaria cauliflora extracts attenuate diabetic nephropathy involving the Ras signaling pathway in streptozotocin/nicotinamide mice on a high fat diet. J Food Drug Anal 2016; 24:136-146. [PMID: 28911396 PMCID: PMC9345440 DOI: 10.1016/j.jfda.2015.10.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 09/04/2015] [Accepted: 11/11/2015] [Indexed: 11/20/2022] Open
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Yonekura Y, Fujii H, Nakai K, Kono K, Goto S, Shinohara M, Nishi S. Anti-oxidative effect of the β-blocker carvedilol on diabetic nephropathy in non-obese type 2 diabetic rats. Clin Exp Pharmacol Physiol 2015; 42:972-978. [PMID: 26173411 DOI: 10.1111/1440-1681.12447] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 06/22/2015] [Accepted: 06/22/2015] [Indexed: 11/27/2022]
Abstract
Oxidative stress plays an important role in the pathogenesis of diabetic nephropathy. The β-blocker carvedilol has been proven to have an anti-oxidant property. The aim of the present study was to elucidate the effects of carvedilol on diabetic nephropathy. At 20 weeks of age, male Spontaneously Diabetic Torii (SDT) rats were divided into three groups based on treatment: (i) an INS group (administered insulin); (ii) a CAR group (administered 10 mg/kg per day, p.o., carvedilol); and (iii) a diabetic (DM) group (administered vehicle). Rats were treated for a period of 10 weeks and were killed at 30 weeks of age. Urinary albumin excretion, renal histomorphology, and oxidative stress were evaluated. Urinary albumin excretion was significantly lower in the CAR than DM group (42.82 ± 3.94 vs 76.62 ± 13.74 mg/day respectively; P < 0.05). The mesangial index was lower in the CAR group than in the DM group. Urinary excretion of 8-hydroxydeoxyguanosine (8-OHdG), the number of 8-OHdG-positive cells in glomeruli, and the mRNA expression of NADPH oxidase p22phox and p47phox were also lower in the CAR than DM group. However, haemoglobin A1c (HbA1c) and blood pressure levels were comparable between the two groups. The results suggest that carvedilol could prevent the progression of diabetic nephropathy by suppressing oxidative stress.
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Affiliation(s)
- Yuriko Yonekura
- Division of Nephrology and Kidney Centre, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hideki Fujii
- Division of Nephrology and Kidney Centre, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kentaro Nakai
- Division of Nephrology and Kidney Centre, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Keiji Kono
- Division of Nephrology and Kidney Centre, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shunsuke Goto
- Division of Nephrology and Kidney Centre, Kobe University Graduate School of Medicine, Kobe, Japan
| | | | - Shinichi Nishi
- Division of Nephrology and Kidney Centre, Kobe University Graduate School of Medicine, Kobe, Japan
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Tavafi M. Diabetic nephropathy and antioxidants. J Nephropathol 2013; 2:20-7. [PMID: 24475422 DOI: 10.5812/nephropathol.9093] [Citation(s) in RCA: 105] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2012] [Accepted: 10/15/2012] [Indexed: 02/07/2023] Open
Abstract
CONTEXT Oxidative stress has crucial role in pathogenesis of diabetic nephropathy (DN). Despite satisfactory results from antioxidant therapy in rodent, antioxidant therapy showed conflicting results in combat with DN in diabetic patients. EVIDENCE ACQUISITIONS Directory of Open Access Journals (DOAJ), Google Scholar,Pubmed (NLM), LISTA (EBSCO) and Web of Science have been searched. RESULTS Treatment of DN in human are insufficient with rennin angiotensin system (RAS) blockers, so additional agent ought to combine with this management. Meanwhile based on DN pathogenesis and evidences in experimental and human researches, the antioxidants are the best candidate. New multi-property antioxidants may be improved human DN that show high power antioxidant capacity, long half-life time, high permeability to mitochondrion, improve body antioxidants enzymes activity and anti-inflammatory effects. CONCLUSIONS Based on this review and our studies on diabetic rats, rosmarinic acid a multi-property antioxidant may be useful in DN patients, but of course, needs to be proven in clinical trials studies.
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Affiliation(s)
- Majid Tavafi
- Department of Anatomy, Lorestan University of Medical Sciences, Faculty of Medicine, Khoram Abad, Iran
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Abstract
This study investigated the beneficial effects of D-α-tocopherol supplementation in protecting against the renal morphological and functional changes caused by hypertension. Spontaneously hypertensive (SHR) and normotensive control (WKY) rats received D-α-tocopherol (80 mg/kg by gavage) or vehicle (mineral oil) every other day for 60 days, from the age of 2 months. After this treatment period, all animals were assessed for renal morphological and functional parameters. The glomerular hypertrophy, increased interlobular wall thickness and enlarged renal vascular resistance found in SHR were reduced by D-α-tocopherol treatment. Sodium and volume retention observed in SHR were also decreased by D-α-tocopherol treatment. Moreover, D-α-tocopherol supplementation significantly reduced arterial pressure in SHR but not in WKY. D-α-tocopherol also reduced the excretion of thiobarbituric acid-reactive substances (TBARS), a marker of oxidative stress, in SHR. These results suggest that D-α-tocopherol supplementation can reduce kidney damage induced by hypertension.
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Tavafi M, Ahmadvand H, Tamjidipoor A, Delfan B, Khalatbari AR. Satureja khozestanica essential oil ameliorates progression of diabetic nephropathy in uninephrectomized diabetic rats. Tissue Cell 2010; 43:45-51. [PMID: 21185580 DOI: 10.1016/j.tice.2010.11.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2010] [Revised: 11/17/2010] [Accepted: 11/27/2010] [Indexed: 01/08/2023]
Abstract
Diabetic nephropathy is the common cause of leading to end stage of renal disease (ESRD). Satureja khozestanica essential oil (SKEO) was used as an antioxidant and antidiabetic for the inhibition of diabetic nephropathy. Forty male rats were uninephrectomized and divided in four groups randomly; group one as control, group two diabetic untreatment, groups three and four treatment with SKEO by 250 or 500 ppm in drinking water, respectively. Diabetes was induced in the second, third and fourth groups by alloxan injection subcutaneously. After eight weeks treatment, serum malondialdehyde, serum creatinine and serum urea were measured. The kidney paraffin sections were stained by periodic acid Schiff method. Glomerular volume and glomerular number were estimated by stereological rules. Glomerular sclerosis was studied semi-quantitatively. The means were compared by SPSS 13 software and Mann-Whitney test at p<0.05. Satureja khozestanica essential oil (250 or 500 ppm) significantly inhibited the progression of glomerular hypertrophy, glomerular number loss, glomerulosclerosis, lipid peroxidation, serum urea and creatinine compared with the diabetic untreated group. The level of glomerular number, serum malondialdehyde, serum creatinine and urea in the treated groups was significantly maintained at the same level as that of the control group. In conclusion, satureja essential oil significantly can ameliorate glomerular hypertrophy, loss of glomerular number, glomerulosclerosis and attenuated serum urea and serum creatinine in diabetic rats.
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Affiliation(s)
- Majid Tavafi
- Department of Anatomy, Lorestan University of Medical Sciences, Faculty of Medicine, Khoram Abad, Iran.
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