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Nascimento MM, Bernardo DRD, de Bragança AC, Massola Shimizu MH, Seguro AC, Volpini RA, Canale D. Treatment with β-blocker nebivolol ameliorates oxidative stress and endothelial dysfunction in tenofovir-induced nephrotoxicity in rats. Front Med (Lausanne) 2022; 9:953749. [PMID: 35991671 PMCID: PMC9386005 DOI: 10.3389/fmed.2022.953749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 06/27/2022] [Indexed: 11/13/2022] Open
Abstract
Background Tenofovir disoproxil fumarate (TDF), a widely prescribed component in antiretroviral regimens, has been associated with nephrotoxicity. Nebivolol is a third generation selective β-1 adrenergic receptor blocker and may protect renal structure and function through the suppression of oxidative stress and enhancement of nitric oxide (NO) synthesis. We aimed to investigate whether nebivolol could be an effective therapeutic strategy to mitigate tenofovir-induced nephrotoxicity. Methods We allocated Wistar rats to four groups: control (C), received a standard diet for 30 days; NBV, received a standard diet for 30 days added with nebivolol (100 mg/kg food) in the last 15 days; TDF, received a standard diet added with tenofovir (300 mg/kg food) for 30 days; and TDF+NBV, received a standard diet added with tenofovir for 30 days and nebivolol in the last 15 days. Results Long-term exposure to tenofovir led to impaired renal function, induced hypertension, endothelial dysfunction and oxidative stress. Nebivolol treatment partially recovered glomerular filtration rate, improved renal injury, normalized blood pressure and attenuated renal vasoconstriction. Administration of nebivolol contributed to reductions in asymmetric dimethylarginine (ADMA) levels as well as increases in endothelial nitric oxide sintase (eNOS) accompanied by renin-angiotensin-aldosterone system downregulation and decreases in macrophage and T-cells infiltrate. Furthermore, nebivolol was responsible for the maintenance of the adequate balance of thiobarbituric acid reactive substances (TBARS) and glutathione (GSH) levels and it was associated with reductions in NADPH oxidase (NOX) subunits. Conclusion Nebivolol holds multifaceted actions that promote an advantageous option to slow the progression of kidney injury in tenofovir-induced nephrotoxicity.
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Affiliation(s)
- Mariana Moura Nascimento
- Laboratorio de Investigacao Medica 12 (LIM12), Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | | | - Ana Carolina de Bragança
- Laboratorio de Investigacao Medica 12 (LIM12), Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de São Paulo, São Paulo, Brazil
| | | | - Antonio Carlos Seguro
- Laboratorio de Investigacao Medica 12 (LIM12), Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de São Paulo, São Paulo, Brazil
| | - Rildo Aparecido Volpini
- Laboratorio de Investigacao Medica 12 (LIM12), Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de São Paulo, São Paulo, Brazil
| | - Daniele Canale
- Laboratorio de Investigacao Medica 12 (LIM12), Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
- *Correspondence: Daniele Canale
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da Silva MM, Gomes MFP, de Moura EDOC, Veras MM, Kubota MC, Takano AP, dos Santos ACC, José CGDR, Souza GADS, Cardoso NM, Estadella D, Lambertucci RH, Medeiros A. Aerobic exercise training combined or not with okra consumption as a strategy to prevent kidney changes caused by metabolic syndrome in Zucker rats. PLoS One 2022; 17:e0269418. [PMID: 35657982 PMCID: PMC9165804 DOI: 10.1371/journal.pone.0269418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 05/20/2022] [Indexed: 11/18/2022] Open
Abstract
The complications of Metabolic Syndrome (MetS) include kidney disease, and most dialysis patients are diagnosed with MetS. The benefit of exercise training (ET) for MetS treatment is already well defined in the literature, but the antidiabetic and antihyperlipidemic benefits of okra (O) have been discovered only recently. The aim of this study was to evaluate the effects of O and/or ET supplementation on renal function and histology; serum urea and creatinine value; inflammation (IL-6, IL-10, TNF-α) and oxidative stress in renal tissue. For this, 32 Zucker rats (fa/fa) were randomly separated into four groups of 8 animals each: Metabolic Syndrome (MetS), MetS + Okra (MetS + O), MetS + Exercise Training (MetS + ET), and MetS + Exercise Training and Okra (MetS + ET + O), and 8 Zucker lean (fa/+) rats comprised the Control group (CTL). Okra was administered by orogastric gavage 2x/day (morning and night, 100 mg/kg) and ET performed on the treadmill, at moderate intensity, 1h/day, 5x/week for 6 weeks. Although the renal function was not altered, the animals with MetS showed greater fibrotic deposition accompanied by a worse stage of renal injury, in addition to increased kidney weight. Although all interventions were beneficial in reducing fibrosis, only ET combined with O was able to improve the degree of renal tissue impairment. ET improved the anti-inflammatory status and reduced nitrite levels, but the combination of ET and O was more beneficial as regards catalase activity. Okra consumption alone did not promote changes in inflammatory cytokines and oxidative stress in the kidney. In conclusion, ET combined or not with O seems to be beneficial in preventing the progression of renal disease when renal function is not yet altered.
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Affiliation(s)
- Monique Marques da Silva
- Interdisciplinary Graduate Program in Health Sciences, Federal University of São Paulo, Santos, Brazil
| | | | | | - Mariana Matera Veras
- Laboratory of Environmental Air Pollution, Department of Pathology, University of São Paulo - School of Medicine, São Paulo, Brazil
| | - Melina Chiemi Kubota
- Interdisciplinary Graduate Program in Health Sciences, Federal University of São Paulo, Santos, Brazil
| | - Ana Paula Takano
- Laboratory of Environmental Air Pollution, Department of Pathology, University of São Paulo - School of Medicine, São Paulo, Brazil
| | | | | | | | - Naiara Magalhães Cardoso
- Interdisciplinary Graduate Program in Health Sciences, Federal University of São Paulo, Santos, Brazil
| | - Debora Estadella
- Interdisciplinary Graduate Program in Health Sciences, Federal University of São Paulo, Santos, Brazil
- Biosciences Department, Federal University of São Paulo, Santos, Brazil
| | - Rafael Herling Lambertucci
- Interdisciplinary Graduate Program in Health Sciences, Federal University of São Paulo, Santos, Brazil
- Biosciences Department, Federal University of São Paulo, Santos, Brazil
| | - Alessandra Medeiros
- Interdisciplinary Graduate Program in Health Sciences, Federal University of São Paulo, Santos, Brazil
- Biosciences Department, Federal University of São Paulo, Santos, Brazil
- * E-mail:
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Araújo Encinas JF, Foncesca Peiró CH, Perez MM, Santos Raimundo JR, de Gois KC, Peres MC, Draghi PF, Costas Arcia CG, Simões DP, Murad N, da Costa Aguiar Alves B, Affonso Fonseca FL, Luciano da Veiga G. Does nebivolol have renoprotective action in patients with chronic kidney disease conditions? An integrative review. Eur J Pharmacol 2021; 905:174180. [PMID: 34015319 DOI: 10.1016/j.ejphar.2021.174180] [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: 02/15/2021] [Revised: 04/28/2021] [Accepted: 05/12/2021] [Indexed: 12/16/2022]
Abstract
Systemic arterial hypertension (SAH) is a chronic disease of multifactorial origin and one of the main risk factors for major adverse cardiovascular events (MACE), which are the leading causes of morbidity and mortality worldwide. The pharmacological treatment of SAH involves five main classes of drugs, and Nebivolol (NEB) is one of those drugs, belonging to the class of third generation β1-adrenoceptors selective blockers. NEB is composed of a racemic mixture of two enantiomers: d-nebivolol, which exerts antagonist effects on β1-adrenoceptors, and l-nebivolol, a vascular β3 receptor agonist. There are several studies that report different actions of NEB, not only for the treatment of SAH, but also as an antioxidant agent or even as a protector of renal damage. The aim of this systematic review was to investigate the available evidence regarding the effects of NEB on kidney diseases, evaluating its possible renoprotective action.
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Affiliation(s)
| | | | - Matheus Moreira Perez
- Laboratório de Análises Clínicas - Centro Universitário Saúde ABC/FMABC, Santo André, Brazil
| | | | | | - Marina Cristina Peres
- Laboratório de Análises Clínicas - Centro Universitário Saúde ABC/FMABC, Santo André, Brazil
| | | | | | - Diogo Pimenta Simões
- Laboratório de Análises Clínicas - Centro Universitário Saúde ABC/FMABC, Santo André, Brazil; Universidade Municipal de São Caetano Do Sul/USCS, São Caetano Do Sul, Brazil
| | - Neif Murad
- Setor de Cardiologia - Centro Universitário Saúde ABC/FMABC, Santo André, Brazil
| | | | - Fernando Luiz Affonso Fonseca
- Laboratório de Análises Clínicas - Centro Universitário Saúde ABC/FMABC, Santo André, Brazil; Departamento de Ciências Farmacêuticas, Universidade Federal de São Paulo, Campus Diadema, Diadema, Brazil
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de Oliveira TL, Lincevicius GS, Shimoura CG, Simões-Sato AY, Garcia ML, T Bergamaschi C, R Campos R. Effects of renal denervation on cardiovascular, metabolic and renal functions in streptozotocin-induced diabetic rats. Life Sci 2021; 278:119534. [PMID: 33933461 DOI: 10.1016/j.lfs.2021.119534] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 04/13/2021] [Accepted: 04/17/2021] [Indexed: 10/21/2022]
Abstract
Diabetes promotes renal sympathetic hyperactivity, autonomic imbalance, and cardiovascular and renal dysfunction. Bilateral renal denervation (BRD) has emerged as a treatment for diabetes; however, the mechanisms that underlie the beneficial effects of BRD are unknown. AIMS The present study evaluated the effects of BRD on autonomic, cardiovascular, metabolic, and renal function in streptozotocin-diabetic rats. MAIN METHODS Wistar rats were separated into three experimental groups: control (CTR), diabetic (DM), and diabetic that underwent BRD (DM BRD). BRD was performed two weeks after STZ-diabetes induction, the experiments were performed four weeks after DM induction. This study evaluated sympathetic vasomotor nerve activity in different territories (renal, lumbar and splanchnic), arterial baroreceptor reflex, metabolic and renal function. KEY FINDINGS BRD significantly reduced glycemia, glycosuria, albuminuria, and SGLT2 gene expression in the kidney in DM rats. Renal sympathetic nerve activity (rSNA) was significantly increased and splanchnic sympathetic nerve activity (sSNA) was significantly decreased in DM rats, without changes in lumbar sympathetic nerve activity (lSNA). BRD was able to normalize sSNA and significantly increase lSNA in DM rats compared to control rats. Additionally, cardiac baroreceptor sensitivity was impaired in DM rats, and BRD significantly improved baroreflex sensitivity. SIGNIFICANCE Our data suggest that renal nerves play an important role in autonomic, cardiovascular, and renal dysfunction in STZ-DM rats. Thus, sympathetic renal hyperactivity should be considered a possible therapeutic target in diabetic patients.
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Affiliation(s)
- Tales Lyra de Oliveira
- Cardiovascular Division, Department of Physiology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil; Medical School, Universidade Municipal de São Caetano do Sul, São Paulo, Brazil; Instituto do Coração, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Gisele Silvério Lincevicius
- Cardiovascular Division, Department of Physiology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Caroline Gusson Shimoura
- Cardiovascular Division, Department of Physiology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil; Department of Physiology and Anatomy, University of North Texas Health Science Center, TX, USA
| | - Alex Yuri Simões-Sato
- Cardiovascular Division, Department of Physiology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Michelle Louvaes Garcia
- Cardiovascular Division, Department of Physiology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Cássia T Bergamaschi
- Cardiovascular Division, Department of Physiology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Ruy R Campos
- Cardiovascular Division, Department of Physiology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil.
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Nephroprotective effects of nebivolol in 2K1C rats through regulation of the kidney ROS-ADMA-NO pathway. Pharmacol Rep 2018; 70:917-929. [DOI: 10.1016/j.pharep.2018.04.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 03/25/2018] [Accepted: 04/12/2018] [Indexed: 01/20/2023]
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Wang Y, An W, Zhang F, Niu M, Liu Y, Shi R. Nebivolol ameliorated kidney damage in Zucker diabetic fatty rats by regulation of oxidative stress/NO pathway: Comparison with captopril. Clin Exp Pharmacol Physiol 2018; 45:1135-1148. [DOI: 10.1111/1440-1681.13001] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 06/18/2018] [Accepted: 06/20/2018] [Indexed: 01/13/2023]
Affiliation(s)
- Yan Wang
- Department of Pharmacology; Shanxi Medical University; Taiyuan Shanxi Province China
| | - Wenjing An
- Department of Pharmacology; Shanxi Medical University; Taiyuan Shanxi Province China
| | - Fei Zhang
- Department of Pharmacology; Shanxi Medical University; Taiyuan Shanxi Province China
| | - Mengzhen Niu
- Department of Pharmacology; Shanxi Medical University; Taiyuan Shanxi Province China
| | - Yu Liu
- Department of Pharmacology; Shanxi Medical University; Taiyuan Shanxi Province China
| | - Ruizan Shi
- Department of Pharmacology; Shanxi Medical University; Taiyuan Shanxi Province China
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7
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Hewedy WA, Mostafa DK. Nebivolol suppresses asymmetric dimethylarginine and attenuates cyclosporine-induced nephrotoxicity and endothelial dysfunction in rats. Pharmacol Rep 2016; 68:1319-1325. [DOI: 10.1016/j.pharep.2016.08.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 08/28/2016] [Accepted: 08/30/2016] [Indexed: 10/21/2022]
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Leung WK, Gao L, Siu PM, Lai CW. Diabetic nephropathy and endothelial dysfunction: Current and future therapies, and emerging of vascular imaging for preclinical renal-kinetic study. Life Sci 2016; 166:121-130. [PMID: 27765534 DOI: 10.1016/j.lfs.2016.10.015] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 10/13/2016] [Accepted: 10/14/2016] [Indexed: 02/07/2023]
Abstract
An explosion in global epidemic of type 2 diabetes mellitus poses major rise in cases with vascular endothelial dysfunction ranging from micro- (retinopathy, nephropathy and neuropathy) to macro-vascular (atherosclerosis and cardiomyopathy) conditions. Functional destruction of endothelium is regarded as an early event that lays the groundwork for the development of renal microangiopathy and subsequent clinical manifestation of nephropathic symptoms. Recent research has shed some light on the molecular mechanisms of type 2 diabetes-associated comorbidity of endothelial dysfunction and nephropathy. Stemming from currently proposed endothelium-centered therapeutic strategies for diabetic nephropathy, this review highlighted some most exploited pathways that involve the intricate coordination of vasodilators, vasoconstrictors and vaso-modulatory molecules in the pathogenesis of diabetic nephropathy. We also emphasized the emerging roles of oxidative and epigenetic modifications of microvasculature as our prospective therapeutics for diabetic renal diseases. Finally, this review in particular addressed the potential use of multispectral optoacoustic tomography in real-time, minimally-invasive vascular imaging of small experimental animals for preclinical renal-kinetic drug trials.
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Affiliation(s)
- Wilson Kc Leung
- Department of Health Technology and Informatics, Hong Kong Polytechnic University, Hung Hom, HKSAR, China
| | - L Gao
- Department of Health Technology and Informatics, Hong Kong Polytechnic University, Hung Hom, HKSAR, China
| | - Parco M Siu
- Department of Health Technology and Informatics, Hong Kong Polytechnic University, Hung Hom, HKSAR, China
| | - Christopher Wk Lai
- Department of Health Technology and Informatics, Hong Kong Polytechnic University, Hung Hom, HKSAR, China.
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9
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Ranjbar A, Ghasemi H, Hatami M, Dadras F, Heidary Shayesteh T, Khoshjou F. Tempol effects on diabetic nephropathy in male rats. J Renal Inj Prev 2016; 5:74-8. [PMID: 27471738 PMCID: PMC4962673 DOI: 10.15171/jrip.2016.16] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 04/05/2016] [Indexed: 12/24/2022] Open
Abstract
INTRODUCTION Diabetic nephropathy (DN) is the most common cause of the chronic kidney disease in the world. Oxidative stress on the other hand has a major and well known role in its pathophysiology. OBJECTIVES The aim of the study is to figure out if tempol, a synthetic antioxidant agent, modifies DN and to determine its relevance to changes of serum oxidative biomarkers. MATERIALS AND METHODS Twenty-seven male rats were equally divided in to 4 groups (7 rats for each group). Group I (control or C), group II (diabetic or D), groups III (Tempol) which were given tempol (100 mg/kg/day) by gavages for 28 days and group IV (D&T) which includes diabetic rats that also received same dose of tempol. After treatment, blood samples were isolated. Enzymatic scavengers including catalase (CAT), glutathione peroxidase (GPx) and superoxide dismutase (SOD) activities, lipid peroxidation (LPO), total antioxidant capacity (TAC) and total thiol molecules (TTM) were measured. Blood urea nitrogen (BUN), creatinine (Cr) an albumin/Cr ratio were evaluated as well. Statistical differences were assessed with one-way analysis of variance (ANOVA) by SPSS followed by Tukey t test. RESULTS Oxidative stress biomarkers modified and Alb/Cr ratio increased in diabetic group (II), however, they were altered to normal in group IV (D&T) compared with diabetic group (D). CONCLUSION Tempol can modify oxidative stress biomarkers and presumably nephropathy in diabetic rats.
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Affiliation(s)
- Akram Ranjbar
- Department of Toxicology and Pharmacology, School of Pharmacy, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Hassan Ghasemi
- Department of Biochemistry, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mahdi Hatami
- Department of Biochemistry, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Farahanaz Dadras
- Department of Internal Medicine, Section of Nephrology, Iran University of Medical Sciences,Tehran, Iran
| | - Tavakol Heidary Shayesteh
- Department of Toxicology and Pharmacology, School of Pharmacy, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Farhad Khoshjou
- Urology and Nephrology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
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Ritchie J, Green D, Alderson HV, Chrysochou C, Vassallo D, Sinha S, Kalra PA. Associations of antiplatelet therapy and beta blockade with patient outcomes in atherosclerotic renovascular disease. ACTA ACUST UNITED AC 2016; 10:149-158.e3. [PMID: 26778771 DOI: 10.1016/j.jash.2015.12.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Revised: 11/08/2015] [Accepted: 12/01/2015] [Indexed: 01/13/2023]
Abstract
Randomized trials have shown a neutral effect of percutaneous revascularization compared with optimal medical therapy in patients with atherosclerotic renovascular disease (ARVD). However, there are few data to define what constitutes optimal medical therapy. We present a retrospective analysis of 529 ARVD patients. Separate analyses were performed comparing outcomes in patients prescribed/not prescribed beta blocker and antiplatelet agents. Analyses were adjusted for effects of baseline covariates on probability of treatment and on clinical outcome. Over a median follow-up period of 3.8 years, antiplatelet therapy was associated with a reduced risk for death (relative risk, 0.52 [95% confidence interval {CI}: 0.31-0.89]; P = .02). Beta blocker therapy was associated with a reduced for death (relative risk, 0.45 [95% CI: 0.21-0.97]; P = .04) and nonfatal cardiovascular events (relative risk, 0.74 [95% CI: 0.60-0.90]; P = .003). Although limited by small patient numbers, this study suggests that in ARVD, treatment with antiplatelet therapy and beta blockade may associate with a prognostic benefit.
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Affiliation(s)
- James Ritchie
- Vascular Research Group, Department of Renal Medicine, Salford Royal NHS Foundation Trust, Salford, United Kingdom
| | - Darren Green
- Vascular Research Group, Department of Renal Medicine, Salford Royal NHS Foundation Trust, Salford, United Kingdom
| | - Helen V Alderson
- Vascular Research Group, Department of Renal Medicine, Salford Royal NHS Foundation Trust, Salford, United Kingdom
| | - Constantina Chrysochou
- Vascular Research Group, Department of Renal Medicine, Salford Royal NHS Foundation Trust, Salford, United Kingdom
| | - Diana Vassallo
- Vascular Research Group, Department of Renal Medicine, Salford Royal NHS Foundation Trust, Salford, United Kingdom
| | - Smeeta Sinha
- Vascular Research Group, Department of Renal Medicine, Salford Royal NHS Foundation Trust, Salford, United Kingdom
| | - Philip A Kalra
- Vascular Research Group, Department of Renal Medicine, Salford Royal NHS Foundation Trust, Salford, United Kingdom.
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Morsy MA, Heeba GH. Nebivolol Ameliorates Cisplatin-Induced Nephrotoxicity in Rats. Basic Clin Pharmacol Toxicol 2016; 118:449-55. [PMID: 26617394 DOI: 10.1111/bcpt.12538] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Accepted: 11/04/2015] [Indexed: 01/04/2023]
Abstract
Treatment with cisplatin is associated with dose-limiting side effects, mainly nephrotoxicity. On the other hand, nebivolol, a β1 -adrenoceptor antagonist, exhibits vasodilatory and antioxidative properties. This study aimed to determine whether nebivolol possesses a protective effect against cisplatin nephrotoxicity and explore many mechanisms underlying this potential effect. Nephrotoxicity was induced in Wistar rats by a single intraperitoneal injection of cisplatin (6 mg/kg) on day 2. Nebivolol (10 mg/kg) was administered orally for 7 consecutive days. Nebivolol showed a nephroprotective effect as demonstrated by the significant reduction in the elevated levels of serum creatinine and urea as well as renal levels of malondialdehyde, nitric oxide products (nitrite/nitrate), inducible nitric oxide synthase, tumour necrosis factor-alpha, caspase-3, angiotensin II and endothelin-1 with a concurrent increase in renal levels of reduced glutathione and endothelial nitric oxide synthase compared to untreated rats. Histopathological examination confirmed the nephroprotective effect of nebivolol. Pre-treatment with Nω -nitro-L-arginine methyl ester, the non-specific nitric oxide synthase inhibitor, partially altered the protection afforded by nebivolol. In conclusion, nebivolol protects rats against cisplatin-induced nephrotoxicity that is most likely through its antioxidant, anti-inflammatory and antiapoptotic effects as well as by abrogation of the augmented angiotensin II and endothelin-1 levels.
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Affiliation(s)
- Mohamed A Morsy
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa, Saudi Arabia.,Department of Pharmacology, Faculty of Medicine, Minia University, El-Minia, Egypt
| | - Gehan H Heeba
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Minia University, El-Minia, Egypt
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12
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Hye Khan MA, Neckář J, Haines J, Imig JD. Azilsartan improves glycemic status and reduces kidney damage in zucker diabetic fatty rats. Am J Hypertens 2014; 27:1087-95. [PMID: 24598210 DOI: 10.1093/ajh/hpu016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Azilsartan medoxomil (AZL-M), an angiotensin II receptor blocker, demonstrates antihypertensive and organ protective effects in hypertension. We investigated the efficacy of AZL-M to ameliorate metabolic syndrome and kidney damage associated with type 2 diabetes using Zucker diabetic fatty (ZDF) rats. METHODS ZDF rats were treated with vehicle or AZL-M for 8 weeks. Zucker diabetic lean (ZDL) rats were used as controls. Urine and plasma samples were collected for biochemical analysis, and kidney tissues were used for histopathological and immunohistopathological examination at the end of the 8-week protocol. RESULTS ZDF rats were diabetic with hyperglycemia and impaired glucose tolerance, and AZL-M ameliorated the diabetic phenotype. ZDF rats were hypertensive compared with ZDL rats (181±6 vs. 129±7mm Hg), and AZL-M decreased blood pressure in ZDF rats (116±7mm Hg). In ZDF rats, there was marked renal damage with elevated proteinuria, albuminuria, nephrinuria, 2-4-fold higher tubular cast formation, and glomerular injury compared with ZDL rats. AZL-M treatment reduced renal damage in ZDF rats. ZDF rats demonstrated renal inflammation and oxidative stress with elevated urinary monocyte chemoattractant protein 1 excretion, renal infiltration of macrophages, and elevated kidney malondialdehyde levels. AZL-M reduced oxidative stress and inflammation in ZDF rats. CONCLUSIONS Overall, we demonstrate that AZL-M attenuates kidney damage in type 2 diabetes. We further demonstrate that anti-inflammatory and antioxidative activities of AZL-M contribute to its kidney protective action.
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Affiliation(s)
- Md Abdul Hye Khan
- Department of Pharmacology & Toxicology, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Jan Neckář
- Department of Pharmacology & Toxicology, Medical College of Wisconsin, Milwaukee, Wisconsin; Institute of Physiology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Jasmine Haines
- Department of Pharmacology & Toxicology, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - John D Imig
- Department of Pharmacology & Toxicology, Medical College of Wisconsin, Milwaukee, Wisconsin; Cardiovascular Center, Medical College of Wisconsin, Milwaukee, Wisconsin.
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Winiarska K, Focht D, Sierakowski B, Lewandowski K, Orlowska M, Usarek M. NADPH oxidase inhibitor, apocynin, improves renal glutathione status in Zucker diabetic fatty rats: A comparison with melatonin. Chem Biol Interact 2014; 218:12-9. [DOI: 10.1016/j.cbi.2014.04.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 12/27/2013] [Accepted: 04/04/2014] [Indexed: 10/25/2022]
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14
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Gokturk H, Ulusu NN, Gok M, Tuncay E, Can B, Turan B. Long-term treatment with a beta-blocker timolol attenuates renal-damage in diabetic rats via enhancing kidney antioxidant-defense system. Mol Cell Biochem 2014; 395:177-86. [DOI: 10.1007/s11010-014-2123-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Accepted: 06/02/2014] [Indexed: 12/22/2022]
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Ferric carboxymaltose-mediated attenuation of Doxorubicin-induced cardiotoxicity in an iron deficiency rat model. CHEMOTHERAPY RESEARCH AND PRACTICE 2014; 2014:570241. [PMID: 24876963 PMCID: PMC4022115 DOI: 10.1155/2014/570241] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2013] [Accepted: 03/25/2014] [Indexed: 01/18/2023]
Abstract
Since anthracycline-induced cardiotoxicity (AIC), a complication of anthracycline-based chemotherapies, is thought to involve iron, concerns exist about using iron for anaemia treatment in anthracycline-receiving cancer patients. This study evaluated how intravenous ferric carboxymaltose (FCM) modulates the influence of iron deficiency anaemia (IDA) and doxorubicin (3–5 mg per kg body weight [BW]) on oxidative/nitrosative stress, inflammation, and cardiorenal function in spontaneously hypertensive stroke-prone (SHR-SP) rats. FCM was given as repeated small or single total dose (15 mg iron per kg BW), either concurrent with or three days after doxorubicin. IDA (after dietary iron restriction) induced cardiac and renal oxidative stress (markers included malondialdehyde, catalase, Cu,Zn-superoxide dismutase, and glutathione peroxidase), nitrosative stress (inducible nitric oxide synthase and nitrotyrosine), inflammation (tumour necrosis factor-alpha and interleukin-6), and functional/morphological abnormalities (left ventricle end-diastolic and end-systolic diameter, fractional shortening, density of cardiomyocytes and capillaries, caveolin-1 expression, creatinine clearance, and urine neutrophil gelatinase-associated lipocalin) that were aggravated by doxorubicin. Notably, iron treatment with FCM did not exacerbate but attenuated the cardiorenal effects of IDA and doxorubicin independent of the iron dosing regimen. The results of this model suggest that intravenous FCM can be used concomitantly with an anthracycline-based chemotherapy without increasing signs of AIC.
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Hering D, Esler MD, Schlaich MP. Effects of renal denervation on insulin resistance. Expert Rev Cardiovasc Ther 2013; 10:1381-6. [PMID: 23244359 DOI: 10.1586/erc.12.140] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Hypertension and diabetes are recognized as two major comorbidities accounting for the greatest proportion of cardiovascular morbidity and mortality. Despite the availability of safe and effective pharmacological therapies, the percentage of patients achieving optimal blood pressure and glycemic control remains unsatisfactory. The contribution of sympathetic activation to the development and maintenance of systemic hypertension and comorbidities is well recognized. Aside from several novel pharmacological approaches, catheter-based sympathetic renal denervation (RDN) has gained a significant role in treatment-resistant hypertension and has recently been introduced to clinical practice. Preliminary data indicate that aside from better blood pressure control, RDN may also be associated with a reduction in fasting glucose and insulin levels, as well as improvements in the Homeostasis Model Assessment (HOMA) index. If these observations are confirmed in larger controlled clinical trials, RDN may emerge as a preferred treatment option for patients with resistant hypertension and concomitant alterations of glucose metabolism.
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Affiliation(s)
- Dagmara Hering
- Neurovascular Hypertension & Kidney Disease Laboratory, Baker IDI Heart & Diabetes Institute, Melbourne, Australia.
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Shao N, Kuang HY, Wang N, Gao XY, Hao M, Zou W, Yin HQ. Relationship between Oxidant/Antioxidant Markers and Severity of Microalbuminuria in the Early Stage of Nephropathy in Type 2 Diabetic Patients. J Diabetes Res 2013; 2013:232404. [PMID: 23671859 PMCID: PMC3647557 DOI: 10.1155/2013/232404] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Accepted: 12/29/2012] [Indexed: 01/08/2023] Open
Abstract
A wide range of microalbuminuria cutoff values are currently used for diagnosing the early stage of nephropathy in type 2 diabetes (T2D). This study analyzed the relationships between oxidant and antioxidant markers of nephropathy and the severity of microalbuminuria. The study included 50 healthy controls (Group 1), 50 diabetic patients with no nephropathy (Group 2), 50 diabetic patients with nephropathy and a urinary albumin excretion (UAE) of 30-200 mg/24 h (Group 3), and 50 diabetic patients with UAE 200-300 mg/24 h (Group 4). Serum nitrotyrosine, conjugated dienes, 8-hydroxy-2'-deoxyguanosine (8-OHdG), superoxide dismutase (SOD), and total antioxidant capacity (T-AOC) levels were determined. Oxidative stress is increased in the early stage of nephropathy in patients with T2D. There was a significant correlation between the extent of microalbuminuria and markers of oxidative stress. Multiple linear regression analysis identified lipid oxidative stress as a possible independent marker for evaluating the degree of renal damage in diabetic nephropathy. Stratifying microalbuminuria values during the early stage of nephropathy might be an important factor in facilitating earlier and more specific interventions.
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Affiliation(s)
- Ning Shao
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
| | - Hong Yu Kuang
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
- *Hong Yu Kuang:
| | - Na Wang
- Department of Endocrinology, The Affiliated Hospital of Jining Medical University, Jining, Shandong 272000, China
| | - Xin Yuan Gao
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
| | - Ming Hao
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
| | - Wei Zou
- Department of Neurology, The First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150040, China
| | - Hui Qing Yin
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
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Sasser JM, Moningka NC, Tsarova T, Baylis C. Nebivolol does not protect against 5/6 ablation/infarction induced chronic kidney disease in rats - comparison with angiotensin II receptor blockade. Life Sci 2012; 91:54-63. [PMID: 22727796 DOI: 10.1016/j.lfs.2012.06.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2011] [Revised: 05/24/2012] [Accepted: 05/31/2012] [Indexed: 01/31/2023]
Abstract
AIMS Nitric oxide (NO) deficiency contributes to chronic kidney disease progression. Nebivolol, a beta adrenergic receptor antagonist, may enhance endogenous NO. Here, we investigated whether Nebivolol attenuates hypertension and renal injury after 5/6 ablation/infarction (A/I). Efficacy was compared to the AT1 receptor antagonist Olmesartan. MAIN METHODS Kidney disease and hypertension were induced by right kidney ablation and ~2/3 infarction of the left kidney. Rats were treated orally with vehicle (placebo), Nebivolol (5mg/kg b.i.d.), or Olmesartan (2.5mg/kg/day) for 6 weeks after A/I. KEY FINDINGS With placebo, glomerular sclerosis and tubulointersititial fibrosis developed with increased blood pressure and proteinuria, and a fall in NO(x) excretion. Olmesartan prevented these changes, but Nebivolol had no effect on these measures but lowered heart rate. Neither treatment reduced systemic oxidative stress (urinary hydrogen peroxide and TBARS). Compared to controls, renal cortex abundance of nNOSα decreased and nNOSβ increased in rats after 5/6 A/I, with no changes in eNOS. Neither treatment restored nNOSα; however, both reduced nNOSβ. Activity of DDAH was decreased by 5/6 A/I but restored by both treatments despite no increase in DDAH protein abundance. Kidney cortex abundance of manganese SOD fell after 5/6 A/I and was restored by treatment with Olmesartan but not Nebivolol. Extracellular and copper/zinc SOD abundances were not changed. SIGNIFICANCE In conclusion, Nebivolol showed no benefit after 6 weeks in rapidly progressing, ANG II-dependent 5/6 A/I model of chronic kidney disease. This contrasts to the protection seen with 6 month treatment of Nebivolol in the slowly progressing 5/6 ablation model.
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Affiliation(s)
- Jennifer M Sasser
- Departments of Physiology and Functional Genomics, University of Florida, Gainesville, FL, USA.
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Toblli JE, DiGennaro F, Giani JF, Dominici FP. Nebivolol: impact on cardiac and endothelial function and clinical utility. Vasc Health Risk Manag 2012; 8:151-60. [PMID: 22454559 PMCID: PMC3310359 DOI: 10.2147/vhrm.s20669] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Endothelial dysfunction is a systemic pathological state of the endothelium characterized by a reduction in the bioavailability of vasodilators, essentially nitric oxide, leading to impaired endothelium-dependent vasodilation, as well as disarrangement in vascular wall metabolism and function. One of the key factors in endothelial dysfunction is overproduction of reactive oxygen species which participate in the development of hypertension, atherosclerosis, diabetes, cardiac hypertrophy, heart failure, ischemia-reperfusion injury, and stroke. Because impaired endothelial activity is believed to have a major causal role in the pathophysiology of vascular disease, hypertension, and heart failure, therapeutic agents which modify this condition are of clinical interest. Nebivolol is a third-generation β-blocker with high selectivity for β1-adrenergic receptors and causes vasodilation by interaction with the endothelial L-arginine/ nitric oxide pathway. This dual mechanism of action underscores several hemodynamic qualities of nebivolol, which include reductions in heart rate and blood pressure and improvements in systolic and diastolic function. Although nebivolol reduces blood pressure to a degree similar to that of conventional β-blockers and other types of antihypertensive drugs, it may have advantages in populations with difficult-to-treat hypertension, such as patients with heart failure along with other comorbidities, like diabetes and obesity, and elderly patients in whom nitric oxide-mediated endothelial dysfunction may be more pronounced. Furthermore, recent data indicate that nebivolol appears to be a cost-effective treatment for elderly patients with heart failure compared with standard care. Thus, nebivolol is an effective and well tolerated agent with benefits above those of traditional β-blockers due to its influence on nitric oxide release, which give it singular hemodynamic effects, cardioprotective activity, and a good tolerability profile. This paper reviews the pharmacology structure and properties of nebivolol, focusing on endothelial dysfunction, clinical utility, comparative efficacy, side effects, and quality of life in general with respect to the other antihypertensive agents.
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Abstract
Male Zucker diabetic fatty fa/fa (ZDF) rats develop obesity and insulin resistance at a young age, and then with aging, progressively develop hyperglycemia. This hyperglycemia is associated with impaired pancreatic β-cell function, loss of pancreatic β-cell mass, and decreased responsiveness of liver and extrahepatic tissues to the actions of insulin and glucose. Of particular interest are the insights provided by studies of these animals into the mechanism behind the progressive impairment of carbohydrate metabolism. This feature among others, including the development of obesity- and hyperglycemia-related complications, is common between male ZDF rats and humans with type 2 diabetes associated with obesity. We discuss the diabetic features and complications found in ZDF rats and why these animals are widely used as a genetic model for obese type 2 diabetes.
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Affiliation(s)
- Masakazu Shiota
- Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, TN, USA.
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