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Akinaw MA, P Nair SK, Usure RE, Leta B, Kedir A, Mamo SA, Waritu NC, Jemal M, Mulat BK. Nephroprotective Effect of the Leaf Extract of Ajuga remota Benth Against Gentamicin-Induced Nephrotoxicity in Swiss Albino Mice. J Exp Pharmacol 2024; 16:159-171. [PMID: 38596746 PMCID: PMC11001546 DOI: 10.2147/jep.s455226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 03/19/2024] [Indexed: 04/11/2024] Open
Abstract
Background Drug-induced kidney injury was among the most common renal damages, from which gentamicin occupies around 25% of this injury. Gentamicin-induced renal damage is caused by increased free radicals with subsequent amplified inflammation. Ajuga remota leaf extract has many phytochemicals with antioxidant activities, which may improve gentamicin-induced renal damage. Thus, we aimed to investigate the nephroprotective effect of Ajuga remota leaf methanolic extract on gentamicin-induced nephrotoxicity in Swiss Albino Mice. Methods An experimental study design was used on 30 experimental mice randomly allocated in six groups: Group I, II, II, IV, and VI, among which mice were given only distilled water, only gentamicin, 600 mg/kg Ajuga remota leaf extract only, gentamicin along with 200 mg/kg extract, gentamicin with 400 mg/kg extract and gentamicin with 600 mg/kg extract, respectively. At the end of the experiment, the mice were sacrificed after being anaesthetized, and blood samples were collected through a cardiac puncture for renal function tests while the kidneys were removed for histopathological evaluation. The data were entered into Epidata version 4.6 and exported to SPSS version 25 for further analysis using one-way analysis of variance. Statistical significance was set at p < 0.05. Results Group II mice had significantly higher levels of serum creatinine and blood urea levels compared to group I and III. The body weight of the mice in group V and group VI showed a significant increase compared with Group II. Serum creatinine and blood urea levels were reduced significantly in the Ajuga remota leaf extract administered group of mice compared to group II. Abnormal kidney architectural changes were seen among group II mice; however, those changes were improved after administration of Ajuga remota leaf methanolic extract. Conclusion Methanol extract of Ajuga remota leaf provided effective protection against gentamicin-induced oxidative renal damage through its antioxidant effects.
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Affiliation(s)
- Metages Ayele Akinaw
- Department of Biomedical Sciences, School of Medicine, Jimma University, Jimma, Ethiopia
| | - Suresh Kumar P Nair
- Department of Biomedical Sciences, School of Medicine, Jimma University, Jimma, Ethiopia
| | - Rashed Edris Usure
- Department of Pharmaceutical Chemistry, School of Pharmacy, Hawassa University, Hawassa, Ethiopia
| | - Bati Leta
- Department of Biomedical Sciences, School of Medicine, Jimma University, Jimma, Ethiopia
| | - Abdo Kedir
- Department of Pathology, School of Medicine, Jimma University, Jimma, Ethiopia
| | - Selam Ayele Mamo
- Department of Adult Health Nursing, School of Nursing, Jimma University, Jimma, Ethiopia
| | - Nuredin Chura Waritu
- Department of Biomedical Sciences, School of Medicine, Wolaita Sodo University, Wolaita Sodo, Ethiopia
| | - Mohammed Jemal
- Department of Biomedical Sciences, School of Medicine, Debre Merkos University, Debre Merkos, Ethiopia
| | - Berhane Kebede Mulat
- Department of Biomedical Sciences, School of Medicine, Jimma University, Jimma, Ethiopia
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Rashid H, Jali A, Akhter MS, Abdi SAH. Molecular Mechanisms of Oxidative Stress in Acute Kidney Injury: Targeting the Loci by Resveratrol. Int J Mol Sci 2023; 25:3. [PMID: 38203174 PMCID: PMC10779152 DOI: 10.3390/ijms25010003] [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: 09/26/2023] [Revised: 10/31/2023] [Accepted: 11/07/2023] [Indexed: 01/12/2024] Open
Abstract
Reactive oxygen species are a group of cellular molecules that stand as double-edged swords, their good and bad being discriminated by a precise balance. Several metabolic reactions in the biological system generate these molecules that interact with cellular atoms to regulate functions ranging from cell homeostasis to cell death. A prooxidative state of the cell concomitant with decreased clearance of such molecules leads to oxidative stress, which contributes as a prime pathophysiological mechanism in various diseases including renal disorders, such as acute kidney injury. However, targeting the generation of oxidative stress in renal disorders by an antioxidant, resveratrol, is gaining considerable therapeutic importance and is known to improve the condition in preclinical studies. This review aims to discuss molecular mechanisms of oxidative stress in acute kidney injury and its amelioration by resveratrol. The major sources of data were PubMed and Google Scholar, with studies from the last five years primarily included, with significant earlier data also considered. Mitochondrial dysfunction, various enzymatic reactions, and protein misfolding are the major sources of reactive oxygen species in acute kidney injury, and interrupting these loci of generation or intersection with other cellular components by resveratrol can mitigate the severity of the condition.
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Affiliation(s)
- Hina Rashid
- Department of Pharmacology and Toxicology, College of Pharmacy, Jazan University, Jizan 45142, Saudi Arabia
| | - Abdulmajeed Jali
- Department of Pharmacology and Toxicology, College of Pharmacy, Jazan University, Jizan 45142, Saudi Arabia
| | - Mohammad Suhail Akhter
- Department of Medical Laboratory Technology, College of Applied Medical Sciences, Jazan University, Jizan 45142, Saudi Arabia
| | - Sayed Aliul Hasan Abdi
- Department of Pharmacy, Faculty of Clinical Pharmacy, Al Baha University, Al Baha 65711, Saudi Arabia
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3
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Jana S, Rajasekaran P, Haldimann K, Vasella A, Böttger EC, Hobbie SN, Crich D. Synthesis of Gentamicins C1, C2, and C2a and Antiribosomal and Antibacterial Activity of Gentamicins B1, C1, C1a, C2, C2a, C2b, and X2. ACS Infect Dis 2023; 9:1622-1633. [PMID: 37481733 PMCID: PMC10425985 DOI: 10.1021/acsinfecdis.3c00233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Indexed: 07/25/2023]
Abstract
Complementing our earlier syntheses of the gentamicins B1, C1a, C2b, and X2, we describe the synthesis of gentamicins C1, C2, and C2a characterized by methyl substitution at the 6'-position, and so present an alternative access to previous chromatographic methods for accessing these sought-after compounds. We describe the antiribosomal activity of our full set of synthetic gentamicin congeners against bacterial ribosomes and hybrid ribosomes carrying the decoding A site of the human mitochondrial, A1555G mutant mitochondrial, and cytoplasmic ribosomes and establish structure-activity relationships with the substitution pattern around ring I to antiribosomal activity, antibacterial resistance due to the presence of aminoglycoside acetyl transferases acting on the 6'-position in ring I, and literature cochlear toxicity data.
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Affiliation(s)
- Santanu Jana
- Department
of Pharmaceutical and Biomedical Sciences, University of Georgia, 250 West Green Street, Athens, Georgia 30602, United States
- Complex
Carbohydrate Research Center, University
of Georgia, 315 Riverbend Road, Athens, Georgia 30602, United States
| | - Parasuraman Rajasekaran
- Department
of Pharmaceutical and Biomedical Sciences, University of Georgia, 250 West Green Street, Athens, Georgia 30602, United States
- Complex
Carbohydrate Research Center, University
of Georgia, 315 Riverbend Road, Athens, Georgia 30602, United States
| | - Klara Haldimann
- Institute
of Medical Microbiology, University of Zurich, Gloriastrasse 30, 8006 Zürich, Switzerland
| | - Andrea Vasella
- Organic
Chemistry Laboratory, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, 8093 Zürich, Switzerland
| | - Erik C. Böttger
- Institute
of Medical Microbiology, University of Zurich, Gloriastrasse 30, 8006 Zürich, Switzerland
| | - Sven N. Hobbie
- Institute
of Medical Microbiology, University of Zurich, Gloriastrasse 30, 8006 Zürich, Switzerland
| | - David Crich
- Department
of Pharmaceutical and Biomedical Sciences, University of Georgia, 250 West Green Street, Athens, Georgia 30602, United States
- Complex
Carbohydrate Research Center, University
of Georgia, 315 Riverbend Road, Athens, Georgia 30602, United States
- Department
of Chemistry, University of Georgia, 302 East Campus Road, Athens, Georgia 30602, United States
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Albalawi RS, Binmahfouz LS, Hareeri RH, Shaik RA, Bagher AM. Parthenolide Phytosomes Attenuated Gentamicin-Induced Nephrotoxicity in Rats via Activation of Sirt-1, Nrf2, OH-1, and NQO1 Axis. Molecules 2023; 28:molecules28062741. [PMID: 36985711 PMCID: PMC10053629 DOI: 10.3390/molecules28062741] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 03/12/2023] [Accepted: 03/14/2023] [Indexed: 03/30/2023] Open
Abstract
Nephrotoxicity is a serious complication that limits the clinical use of gentamicin (GEN). Parthenolide (PTL) is a sesquiterpene lactone derived from feverfew with various therapeutic benefits. However, PTL possesses low oral bioavailability. This study aimed to evaluate the therapeutic protective effects of PTL-phytosomes against GEN-induced nephrotoxicity in rats. The PTL was prepared as phytosomes to improve the pharmacological properties with a particle size of 407.4 nm, and surface morphology showed oval particles with multiple edges. Rats were divided into six groups: control, nano-formulation plain vehicle, PTL-phytosomes (10 mg/kg), GEN (100 mg/kg), GEN + PTL-phytosomes (5 mg/kg), and GEN + PTL-phytosomes (10 mg/kg). The administration of PTL-phytosomes alleviated GEN-induced impairment in kidney functions and histopathological damage, and decreased kidney injury molecule-1 (KIM-1). The anti-oxidative effect of PTL-phytosomes was demonstrated by the reduced malondialdehyde (MDA) concentration and increased superoxide dismutase (SOD) and catalase (CAT) activities. Furthermore, PTL-phytosomes treatment significantly enhanced sirtuin 1 (Sirt-1), nuclear factor erythroid-2-related factor-2 (Nrf2), NAD(P)H quinone dehydrogenase 1 (NQO1), and heme oxygenase-1 (HO-1). Additionally, PTL-phytosomes treatment exhibited anti-inflammatory and anti-apoptotic properties in the kidney tissue. These findings suggest that PTL-phytosomes attenuate renal dysfunction and structural damage by reducing oxidative stress, inflammation, and apoptosis in the kidney.
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Affiliation(s)
- Rawan S Albalawi
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Lenah S Binmahfouz
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Rawan H Hareeri
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Rasheed A Shaik
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Amina M Bagher
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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5
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Butterfield DA, Boyd-Kimball D, Reed TT. Cellular Stress Response (Hormesis) in Response to Bioactive Nutraceuticals with Relevance to Alzheimer Disease. Antioxid Redox Signal 2023; 38:643-669. [PMID: 36656673 PMCID: PMC10025851 DOI: 10.1089/ars.2022.0214] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 01/08/2023] [Indexed: 01/20/2023]
Abstract
Significance: Alzheimer's disease (AD) is the most common form of dementia associated with aging. As the large Baby Boomer population ages, risk of developing AD increases significantly, and this portion of the population will increase significantly over the next several decades. Recent Advances: Research suggests that a delay in the age of onset by 5 years can dramatically decrease both the incidence and cost of AD. In this review, the role of nuclear factor erythroid 2-related factor 2 (Nrf2) in AD is examined in the context of heme oxygenase-1 (HO-1) and biliverdin reductase-A (BVR-A) and the beneficial potential of selected bioactive nutraceuticals. Critical Issues: Nrf2, a transcription factor that binds to enhancer sequences in antioxidant response elements (ARE) of DNA, is significantly decreased in AD brain. Downstream targets of Nrf2 include, among other proteins, HO-1. BVR-A is activated when biliverdin is produced. Both HO-1 and BVR-A also are oxidatively or nitrosatively modified in AD brain and in its earlier stage, amnestic mild cognitive impairment (MCI), contributing to the oxidative stress, altered insulin signaling, and cellular damage observed in the pathogenesis and progression of AD. Bioactive nutraceuticals exhibit anti-inflammatory, antioxidant, and neuroprotective properties and are potential topics of future clinical research. Specifically, ferulic acid ethyl ester, sulforaphane, epigallocatechin-3-gallate, and resveratrol target Nrf2 and have shown potential to delay the progression of AD in animal models and in some studies involving MCI patients. Future Directions: Understanding the regulation of Nrf2 and its downstream targets can potentially elucidate therapeutic options for delaying the progression of AD. Antioxid. Redox Signal. 38, 643-669.
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Affiliation(s)
- D. Allan Butterfield
- Department of Chemistry, University of Kentucky, Lexington, Kentucky, USA
- Sanders-Brown Center on Aging, University of Kentucky, Lexington, Kentucky, USA
| | - Debra Boyd-Kimball
- Department of Biochemistry, Chemistry, and Physics, University of Mount Union, Alliance, Ohio, USA
| | - Tanea T. Reed
- Department of Chemistry, Eastern Kentucky University, Richmond, Kentucky, USA
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Yuan M, Briscese K, Hong TS, Brunetti L. Natural products for the prevention of antibiotic-associated kidney injury. CURRENT OPINION IN TOXICOLOGY 2022; 32:100363. [PMID: 38884043 PMCID: PMC11178348 DOI: 10.1016/j.cotox.2022.100363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Drug-induced acute kidney injury (AKI), especially from exposure to antibiotics, has a high prevalence secondary to their frequent prescription. Typically, drug-induced AKI results from acute tubular necrosis or acute interstitial nephritis. While some risk factors for the development of AKI in individuals treated with antibiotics are modifiable, others such as concomitant drug therapies to treat comorbidities, age, and pre-existing chronic kidney disease are not modifiable. As such, there is an urgent need to identify strategies to reduce the risk of AKI in individuals requiring antibiotic therapy. Natural products, especially those rich in active constituents possessing antioxidant properties are an attractive option to mitigate AKI risk. Given that mitochondrial dysfunction precedes AKI and natural products can restore mitochondrial health and counter the oxidative stress secondary to mitochondrial damage investigating their utility warrants further attention. The following review summarizes the available preclinical and clinical evidence that provides a foundation for future study.
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Affiliation(s)
- Marshall Yuan
- Department of Pharmacy Practice and Administration, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Kelsey Briscese
- Department of Pharmacy Practice and Administration, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Thomas S Hong
- Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Luigi Brunetti
- Department of Pharmacy Practice and Administration, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
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7
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Guerreiro Í, Ferreira-Pêgo C, Carregosa D, Santos CN, Menezes R, Fernandes AS, Costa JG. Polyphenols and Their Metabolites in Renal Diseases: An Overview. Foods 2022; 11:foods11071060. [PMID: 35407148 PMCID: PMC8997953 DOI: 10.3390/foods11071060] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 04/01/2022] [Accepted: 04/04/2022] [Indexed: 12/12/2022] Open
Abstract
Kidney diseases constitute a worldwide public health problem, contributing to morbidity and mortality. The present study aimed to provide an overview of the published data regarding the potential beneficial effects of polyphenols on major kidney diseases, namely acute kidney injury, chronic kidney disease, diabetic nephropathy, renal cancer, and drug-induced nephrotoxicity. This study consists of a bibliographical review including in vitro and in vivo studies dealing with the effects of individual compounds. An analysis of the polyphenol metabolome in human urine was also conducted to estimate those compounds that are most likely to be responsible for the kidney protective effects of polyphenols. The biological effects of polyphenols can be highly attributed to the modulation of specific signaling cascades including those involved in oxidative stress responses, anti-inflammation processes, and apoptosis. There is increasing evidence that polyphenols afford great potential in renal disease protection. However, this evidence (especially when in vitro studies are involved) should be considered with caution before its clinical translation, particularly due to the unfavorable pharmacokinetics and extensive metabolization that polyphenols undergo in the human body. Future research should consider polyphenols and their metabolites that indeed reach kidney tissues.
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Affiliation(s)
- Íris Guerreiro
- CBIOS—Universidade Lusófona’s Research Center for Biosciences & Health Technologies, Campo Grande 376, 1749-024 Lisboa, Portugal; (Í.G.); (C.F.-P.); (R.M.); (A.S.F.)
| | - Cíntia Ferreira-Pêgo
- CBIOS—Universidade Lusófona’s Research Center for Biosciences & Health Technologies, Campo Grande 376, 1749-024 Lisboa, Portugal; (Í.G.); (C.F.-P.); (R.M.); (A.S.F.)
| | - Diogo Carregosa
- CEDOC, Chronic Diseases Research Center, NOVA Medical School, Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Campo dos Mártires da Pátria, 130, 1169-056 Lisboa, Portugal; (D.C.); (C.N.S.)
| | - Cláudia N. Santos
- CEDOC, Chronic Diseases Research Center, NOVA Medical School, Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Campo dos Mártires da Pátria, 130, 1169-056 Lisboa, Portugal; (D.C.); (C.N.S.)
| | - Regina Menezes
- CBIOS—Universidade Lusófona’s Research Center for Biosciences & Health Technologies, Campo Grande 376, 1749-024 Lisboa, Portugal; (Í.G.); (C.F.-P.); (R.M.); (A.S.F.)
- CEDOC, Chronic Diseases Research Center, NOVA Medical School, Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Campo dos Mártires da Pátria, 130, 1169-056 Lisboa, Portugal; (D.C.); (C.N.S.)
- iBET, Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2781-901 Oeiras, Portugal
| | - Ana S. Fernandes
- CBIOS—Universidade Lusófona’s Research Center for Biosciences & Health Technologies, Campo Grande 376, 1749-024 Lisboa, Portugal; (Í.G.); (C.F.-P.); (R.M.); (A.S.F.)
| | - João G. Costa
- CBIOS—Universidade Lusófona’s Research Center for Biosciences & Health Technologies, Campo Grande 376, 1749-024 Lisboa, Portugal; (Í.G.); (C.F.-P.); (R.M.); (A.S.F.)
- Correspondence:
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Zhan F, Wang X, Zhang J, Yi S, He P. Glutamine alleviates the renal dysfunction associated with gentamicin-induced acute kidney injury in Sprague-Dawley rats. Biotechnol Appl Biochem 2022; 69:323-329. [PMID: 33458886 DOI: 10.1002/bab.2111] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 01/10/2021] [Indexed: 01/16/2023]
Abstract
Sepsis is a clinical condition caused by an uncontrolled response to an infection, leading to acute kidney injury (AKI) and an increased risk of mortality. Although life support and antibiotic therapy are available, the mortality rate remains high in patients with sepsis. The present study investigated the therapeutic effect of glutamine on gentamicin-induced acute kidney injury in Sprague-Dawley rats. We randomly grouped 24 male rats to the normal control, AKI (control), glutamine 50 mg/kg, and glutamine 500 mg/kg groups. The dose was administered orally for 14 consecutive days. Rats treated with glutamine 500 mg/kg showed changes in systolic blood pressure. Glutamine increased renal blood flow, creatinine clearance, and the levels of potassium, creatinine, blood urea nitrogen, and urine osmolality, while reducing the relative excretion of sodium, potassium, urinary sodium, and plasma blood urea nitrogen and creatinine levels. In our study, glutamine supplementation reduced gentamicin-induced oxidative stress and increased catalase, superoxide dismutase, glutathione peroxidase, and glutathione levels in AKI rats. In addition, glutamine supplementation attenuated the severity of pathological features in this model. Collectively, our results showed that gentamicin has therapeutic potential against gentamicin-induced AKI due to its ability to mitigate the effects of oxidative stress.
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Affiliation(s)
- Feng Zhan
- Department of Emergency Medicine, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, People's Republic of China
| | - Xiang Wang
- Department of Emergency Medicine, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, People's Republic of China
| | - Jun Zhang
- Department of Emergency Medicine, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, People's Republic of China
| | - Shengyang Yi
- Department of Emergency Medicine, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, People's Republic of China
| | - Ping He
- Department of Emergency Medicine, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, People's Republic of China
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Irshad K, Rehman K, Akash MSH, Hussain I. Biochemical Investigation of Therapeutic Potential of Resveratrol Against Arsenic Intoxication. Dose Response 2021; 19:15593258211060941. [PMID: 34887717 PMCID: PMC8649462 DOI: 10.1177/15593258211060941] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Arsenic has been reported to cause damaging effects on different body organs.
This study was designed to evaluate the protective effect of resveratrol (RSV)
against arsenic trioxide (ATO)–induced intoxication in experimental animals.
Twenty-four Wistar rats were allocated in 4 groups: group 1: control group,
received normal diet; group 2: received ATO (3 mg/kg); group 3: received RSV
(8 mg/kg) 30 minutes before administration of ATO; and group 4: received
ascorbic acid (25 mg/kg) 30 minutes before administration of ATO. Treatments
were given to experimental rats daily for consecutive 8 days. At the end of
experimental period, bioaccumulation of arsenic in liver and kidney was assessed
by hydride generation-atomic absorption spectrophotometer to investigate the
association of arsenic accumulation with histological aberrations. Following
parameters were also investigated: serum biochemical profile (alanine
aminotransferase, aspartate transaminase, alkaline phosphatase, blood urea
nitrogen, and creatinine) for evaluation of liver and kidney functions and lipid
peroxidation and oxidative stress (malondialdehyde, glutathione, superoxide
dismutase, catalase, and glutathione peroxidase) in tissue homogenates of liver
and kidney for estimation of oxidative status. The findings of this study
indicate that RSV remarkably ameliorated the hepatic and renal toxicity in
arsenic-exposed rat model due to its strong antioxidant potential.
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Affiliation(s)
- Kanwal Irshad
- Department of Pharmaceutical Chemistry, Government College University, Faisalabad, Pakistan
| | - Kanwal Rehman
- Department of Pharmacy, University of Agriculture, Faisalabad, Pakistan
| | | | - Iqbal Hussain
- Department of Botany, Government College University, Faisalabad, Pakistan
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Adelusi T, Li X, Xu L, Du L, Hao M, Zhou X, Chowdhry A, Sun Y, Gu X, Lu Q, Yin X. Novel Chalcone BDD-39 Mitigated Diabetic Nephropathy through the Activation of Nrf2/ARE Signaling. Curr Mol Pharmacol 2021; 15:658-675. [PMID: 34525927 DOI: 10.2174/1874467214666210915145104] [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: 11/04/2020] [Revised: 03/05/2021] [Accepted: 06/07/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND In this study, we investigated the Nrf2/ARE signaling pathway activating capacity of Biphenyl Diester Derivative-39 (BDD-39) in diabetic nephropathy in order to elucidate the mechanism surrounding its antidiabetic potential. OBJECTIVES Protein expressions of Nrf2, HO-1, NQO-1 and biomarkers of kidney fibrosis were executed after which mRNA levels of Nrf2, HO-1 and NQO-1 were estimated after creating the models following BBD-39 treatment. METHODS Type 2 diabetes model was established in mice with high-fat diet feeding combined with streptozocin intraperitoneal administration. The diabetic mice were then treated with BDD-39 (15, 45mg· kg-1· d-1, ig) or a positive control drug resveratrol (45mg· kg-1·d-1, ig) for 8 weeks. Staining techniques were used to investigate collagen deposition in the glomerulus of the renal cortex and also to investigate the expression and localization of Nrf2 and extracellular matrix (ECM) proteins (collagen IV and laminin) in vitro and in vivo. Furthermore, we studied the mechanism of action of BDD-39 using RNA-mediated Nrf2 silencing technique in mouse SV40 glomerular mesangial cells (SV40 GM cells). RESULTS We found that BDD-39 activates Nrf2/ARE signaling pathway, promotes Nrf2 nuclear translocation (Nrf2nuc/Nrf2cyt) and modulate prominent biomarkers of kidney fibrosis at the protein level. However, BDD-39 could not activate Nrf2/ARE signaling in RNA-mediated Nrf2-silenced HG-cultured SV40 GM cells. CONCLUSION Taken together, this study demonstrates for the first time that BDD-39 ameliorates experimental DN through attenuation of renal fibrosis progression and modulation of Nrf2/ARE signaling pathway.
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Affiliation(s)
- Temitope Adelusi
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou 221004, Jiangsu. China
| | - Xizhi Li
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou 221004, Jiangsu. China
| | - Liu Xu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou 221004, Jiangsu. China
| | - Lei Du
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou 221004, Jiangsu. China
| | - Meng Hao
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou 221004, Jiangsu. China
| | - Xueyan Zhou
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou 221004, Jiangsu. China
| | - Apu Chowdhry
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou 221004, Jiangsu. China
| | - Ying Sun
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou 221004, Jiangsu. China
| | - Xiaoke Gu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou 221004, Jiangsu. China
| | - Qian Lu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou 221004, Jiangsu. China
| | - Xiaoxing Yin
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou 221004, Jiangsu. China
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Jhanji M, Rao CN, Sajish M. Towards resolving the enigma of the dichotomy of resveratrol: cis- and trans-resveratrol have opposite effects on TyrRS-regulated PARP1 activation. GeroScience 2021; 43:1171-1200. [PMID: 33244652 PMCID: PMC7690980 DOI: 10.1007/s11357-020-00295-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 10/28/2020] [Indexed: 02/07/2023] Open
Abstract
Unlike widely perceived, resveratrol (RSV) decreased the average lifespan and extended only the replicative lifespan in yeast. Similarly, although not widely discussed, RSV is also known to evoke neurite degeneration, kidney toxicity, atherosclerosis, premature senescence, and genotoxicity through yet unknown mechanisms. Nevertheless, in vivo animal models of diseases and human clinical trials demonstrate inconsistent protective and beneficial effects. Therefore, the mechanism of action of RSV that elicits beneficial effects remains an enigma. In a previously published work, we demonstrated structural similarities between RSV and tyrosine amino acid. RSV acts as a tyrosine antagonist and competes with it to bind to human tyrosyl-tRNA synthetase (TyrRS). Interestingly, although both isomers of RSV bind to TyrRS, only the cis-isomer evokes a unique structural change at the active site to promote its interaction with poly-ADP-ribose polymerase 1 (PARP1), a major determinant of cellular NAD+-dependent stress response. However, retention of trans-RSV in the active site of TyrRS mimics its tyrosine-bound conformation that inhibits the auto-poly-ADP-ribos(PAR)ylation of PARP1. Therefore, we proposed that cis-RSV-induced TyrRS-regulated auto-PARylation of PARP1 would contribute, at least in part, to the reported health benefits of RSV through the induction of protective stress response. This observation suggested that trans-RSV would inhibit TyrRS/PARP1-mediated protective stress response and would instead elicit an opposite effect compared to cis-RSV. Interestingly, most recent studies also confirmed the conversion of trans-RSV and its metabolites to cis-RSV in the physiological context. Therefore, the finding that cis-RSV and trans-RSV induce two distinct conformations of TyrRS with opposite effects on the auto-PARylation of PARP1 provides a potential molecular basis for the observed dichotomic effects of RSV under different experimental paradigms. However, the fact that natural RSV exists as a diastereomeric mixture of its cis and trans isomers and cis-RSV is also a physiologically relevant isoform has not yet gained much scientific attention.
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Affiliation(s)
- Megha Jhanji
- Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, University of South Carolina, Columbia, SC, 29208, USA
| | - Chintada Nageswara Rao
- Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, University of South Carolina, Columbia, SC, 29208, USA
| | - Mathew Sajish
- Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, University of South Carolina, Columbia, SC, 29208, USA.
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Grujić-Milanović J, Jaćević V, Miloradović Z, Jovović D, Milosavljević I, Milanović SD, Mihailović-Stanojević N. Resveratrol Protects Cardiac Tissue in Experimental Malignant Hypertension Due to Antioxidant, Anti-Inflammatory, and Anti-Apoptotic Properties. Int J Mol Sci 2021; 22:5006. [PMID: 34066865 PMCID: PMC8125904 DOI: 10.3390/ijms22095006] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 04/28/2021] [Accepted: 04/28/2021] [Indexed: 12/25/2022] Open
Abstract
Hypertension is one of the most prevalent and powerful contributors of cardiovascular diseases. Malignant hypertension is a relatively rare but extremely severe form of hypertension accompanied with heart, brain, and renal impairment. Resveratrol, a recently described grape-derived, polyphenolic antioxidant molecule, has been proposed as an effective agent in the prevention of cardiovascular diseases. This study was designed to examine chronic resveratrol administration on blood pressure, oxidative stress, and inflammation, with special emphasis on cardiac structure and function in two models of experimental hypertension. The experiments were performed in spontaneously (SHRs) and malignantly hypertensive rats (MHRs). The chronic administration of resveratrol significantly decreased blood pressure in both spontaneously and malignant hypertensive animals. The resveratrol treatment ameliorated morphological changes in the heart tissue. The immunohistochemistry of the heart tissue after resveratrol treatment showed that both TGF-β and Bax were not present in the myocytes of SHRs and were present mainly in the myocytes of MHRs. Resveratrol suppressed lipid peroxidation and significantly improved oxidative status and release of NO. These results suggest that resveratrol prevents hypertrophic and apoptotic consequences induced by high blood pressure with more pronounced effects in malignant hypertension.
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Affiliation(s)
- Jelica Grujić-Milanović
- Laboratory for Experimental Hypertension, Institute for Medical Research, Department for Cardiovascular Research, University of Belgrade, National Institute of the Republic Serbia, 11000 Belgrade, Serbia; (Z.M.); (D.J.); (N.M.-S.)
| | - Vesna Jaćević
- Department for Experimental Toxicology and Pharmacology, National Poison Control Centre, Military Medical Academy, 11000 Belgrade, Serbia;
- Medical Faculty of the Military Medical Academy, University of Defence, 11000 Belgrade, Serbia
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, 500 30 Hradec Kralove, Czech Republic
| | - Zoran Miloradović
- Laboratory for Experimental Hypertension, Institute for Medical Research, Department for Cardiovascular Research, University of Belgrade, National Institute of the Republic Serbia, 11000 Belgrade, Serbia; (Z.M.); (D.J.); (N.M.-S.)
| | - Djurdjica Jovović
- Laboratory for Experimental Hypertension, Institute for Medical Research, Department for Cardiovascular Research, University of Belgrade, National Institute of the Republic Serbia, 11000 Belgrade, Serbia; (Z.M.); (D.J.); (N.M.-S.)
| | - Ivica Milosavljević
- Institute of Pathology and Forensic Medicine, Military Medical Academy, 11000 Belgrade, Serbia;
| | - Sladjan D. Milanović
- Institute for Medical Research, Department for Biomedical Engineering and Biophysics, University of Belgrade, National Institute of the Republic Serbia, 11000 Belgrade, Serbia;
| | - Nevena Mihailović-Stanojević
- Laboratory for Experimental Hypertension, Institute for Medical Research, Department for Cardiovascular Research, University of Belgrade, National Institute of the Republic Serbia, 11000 Belgrade, Serbia; (Z.M.); (D.J.); (N.M.-S.)
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13
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Li KX, Ji MJ, Sun HJ. An updated pharmacological insight of resveratrol in the treatment of diabetic nephropathy. Gene 2021; 780:145532. [PMID: 33631244 DOI: 10.1016/j.gene.2021.145532] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 02/03/2021] [Accepted: 02/09/2021] [Indexed: 02/06/2023]
Abstract
As one of the most common complications of diabetes, nephropathy develops in approximately 40% of diabetic individuals. Although end stage kidney disease is known as one of the most consequences of diabetic nephropathy, the majority of diabetic individuals might die from cardiovascular diseases and infections before renal replacement treatment. Moreover, the routine medical treatments for diabetes hold undesirable side effects. The explosive prevalence of diabetes urges clinicians and scientists to investigate the complementary or alternative therapies. Phytochemicals are emerging as alternatives with a wide range of therapeutic effects on various pathologies, including diabetic kidney disease. Of those phytochemicals, resveratrol, a natural polyphenolic stilbene, has been found to exert a broad spectrum of health benefits via various signaling molecules. In particular, resveratrol has gained a great deal of attention because of its anti-oxidative, anti-inflammatory, anti-diabetic, anti-obesity, cardiovascular-protective, and anti-tumor properties. In the renal system, emerging evidence shows that resveratrol has already been used to ameliorate chronic or acute kidney injury. This review critically summarizes the current findings and molecular mechanisms of resveratrol in diabetic renal damage. In addition, we will discuss the adverse and inconsistent effects of resveratrol in diabetic nephropathy. Although there is increasing evidence that resveratrol affords great potential in diabetic nephropathy therapy, these results should be treated with caution before its clinical translation. In addition, the unfavorable pharmacokinetics and/or pharmacodynamics profiles, such as poor bioavailability, may limit its extensive clinical applications. It is clear that further research is needed to unravel these limitations and improve its efficacy against diabetic nephropathy. Increasing investigation of resveratrol in diabetic kidney disease will not only help us better understand its pharmacological actions, but also provide novel potential targets for therapeutic intervention.
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Affiliation(s)
- Ke-Xue Li
- Department of Physiology, Xuzhou Medical University, Xuzhou 221004, China
| | - Miao-Jin Ji
- Jiangsu Province Key Laboratory of Anesthesiology, School of Anesthesiology, Xuzhou Medical University, Xuzhou 221004, China.
| | - Hai-Jian Sun
- Department of Basic Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi 214122, China; Yong Loo Lin School of Medicine, National University of Singapore, 117597, Singapore.
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Resveratrol reduces gentamicin-induced EMT in the kidney via inhibition of reactive oxygen species and involving TGF-β/Smad pathway. Life Sci 2020; 258:118178. [PMID: 32739468 DOI: 10.1016/j.lfs.2020.118178] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 07/26/2020] [Accepted: 07/28/2020] [Indexed: 12/12/2022]
Abstract
AIMS Gentamicin (GEN) is one of the most valuable aminoglycoside antibiotics utilized against life-threatening bacterial infections. Unfortunately, GEN-induced nephrotoxicity limited its clinical utility. The pathologic process of nephrotoxicity caused by GEN may involve epithelial to mesenchymal transition (EMT). Resveratrol (RES) is a natural compound was revealed to inhibit EMT in kidney. The present work was conducted to explore the potential renoprotective role of RES on GEN-induced EMT. Moreover, the underlying signaling pathway of this inhibition was investigated. MAIN METHODS Mice were treated with GEN by intraperitoneal (i.p.) route daily for 15 days to identify EMT onset with regard to GEN-induced nephrotoxicity. To assess the ameliorative role of RES against GEN-induced EMT, RES was i.p. administrated in high and low doses before and concurrently with GEN treatment. KEY FINDINGS GEN administration significantly deteriorated kidney functions. In addition, reduced glutathione (GSH) content and catalase (CAT) activity were significantly decreased with a concomitant increase in the content of kidney malondialdehyde (MDA) after GEN treatment. Histological changes and deposition of collagen were extensive in renal corpuscles and tubules. Increased expression of alpha smooth muscle actin (α-SMA), transforming growth factor-β1 (TGF-β1) and phosphorylated (p)-Smad2 were observed after GEN administration, while E-cadherin expression was decreased. On the contrary, pretreatment with both doses of RES reversed the modifications caused by GEN administration. SIGNIFICANCE We concluded that EMT contributes to pathogenesis of GEN-induced nephrotoxicity. RES has a protective effect on GEN-induced EMT via suppressing oxidative stress and a possible involvement of TGF-β/Smad signaling pathway.
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Shahbazi F, Farvadi F, Dashti-Khavidaki S, Ataei S, Shojaei L. Potential nephroprotective effects of resveratrol in drug induced nephrotoxicity: a narrative review of safety and efficacy data. ADVANCES IN TRADITIONAL MEDICINE 2020. [DOI: 10.1007/s13596-020-00432-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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16
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Murillo Ortiz BO, Fuentes Preciado AR, Ramírez Emiliano J, Martínez Garza S, Ramos Rodríguez E, de Alba Macías LA. Recovery Of Bone And Muscle Mass In Patients With Chronic Kidney Disease And Iron Overload On Hemodialysis And Taking Combined Supplementation With Curcumin And Resveratrol. Clin Interv Aging 2019; 14:2055-2062. [PMID: 31819387 PMCID: PMC6873966 DOI: 10.2147/cia.s223805] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 10/22/2019] [Indexed: 12/02/2022] Open
Abstract
Introduction Malnutrition is common in haemodialysis patients and closely related to morbidity and mortality. We evaluated the effect of twelve weeks of supplementation with resveratrol and curcumin on recovery of bone and muscle mass and protein oxidation, lipid peroxidation on patients with chronic kidney disease and iron overload undergoing hemodialysis, we performed a randomized, double-blind, placebo-controlled trial. Methods We included a total of 40 patients, were randomly assigned to two groups, 20 to the group with antioxidant supplementation (Resveratrol + Curcumin) (Group A), treated with a daily oral dose of 500 mg of Resveratrol and 500 mg of Curcumin, and 20 to the control group treated with placebo (Group B). Results Significant differences were found in the body composition of the patients between both groups. There was a significant difference in Body Mass Index (BMI) values (p = 0.002), fat percentage (p = 0.007), muscle mass (p = 0.01) bone mass (p = 0.01), as well as in the score of the subjective global evaluation (p = 0.03). Also differences were found between the basal and final serum levels of Triglycerides (TG) (p = 0.01), VLDL (p = 0.003). A significant decrease in the levels of serum ferritin (2003.69 ± 518.73 vs 1795.65 ± 519.00 ng/mL; p = 0.04). Nor were significant differences observed between the baseline and the final Thiobarbituric Acid Reactive Substances (TBARS) values (70.45 ± 69.21 vs 50.19 ± 32.62, p = 0.24). The same results was obtained for carbonyl values (2.67 ± 0.75 vs 2.50 ± 0.85; p = 0.50). Discussion The present study is the first assay on patients with chronic kidney disease and iron overload that demonstrates the beneficial effects of combined supplementation with Curcumin and Resveratrol on muscle and bone mass. There was a significant decrease in circulating levels of ferritin, to finding that remarkably novel.
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Affiliation(s)
- Blanca Olivia Murillo Ortiz
- Clinical Epidemiology Research Unit, UMAE No. 1 Bajio, Mexican Institute Social Security, León, Guanajuato, Mexico
| | | | | | - Sandra Martínez Garza
- Clinical Epidemiology Research Unit, UMAE No. 1 Bajio, Mexican Institute Social Security, León, Guanajuato, Mexico
| | - Edna Ramos Rodríguez
- Regional General Hospital No. 58, Mexican Institute Social Security, León, Guanajuato, Mexico
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17
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Amelioration of renal and hepatic function, oxidative stress, inflammation and histopathologic damages by Malva sylvestris extract in gentamicin induced renal toxicity. Biomed Pharmacother 2019; 112:108635. [DOI: 10.1016/j.biopha.2019.108635] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 01/13/2019] [Accepted: 01/28/2019] [Indexed: 12/19/2022] Open
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18
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Tabeshpour J, Mehri S, Shaebani Behbahani F, Hosseinzadeh H. Protective effects of Vitis vinifera
(grapes) and one of its biologically active constituents, resveratrol, against natural and chemical toxicities: A comprehensive review. Phytother Res 2018; 32:2164-2190. [DOI: 10.1002/ptr.6168] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Revised: 06/12/2018] [Accepted: 07/03/2018] [Indexed: 01/09/2023]
Affiliation(s)
- Jamshid Tabeshpour
- Department of Pharmacodynamics and Toxicology, School of Pharmacy; Mashhad University of Medical Sciences; Mashhad Iran
- Student Research Committee; Mashhad University of Medical Sciences; Mashhad Iran
| | - Soghra Mehri
- Department of Pharmacodynamics and Toxicology, School of Pharmacy; Mashhad University of Medical Sciences; Mashhad Iran
- Pharmaceutical Research Center, Pharmaceutical Technology Institute; Mashhad University of Medical Sciences; Mashhad Iran
- Neurocognitive Research Center; Mashhad University of Medical Sciences; Mashhad Iran
| | - Fatemeh Shaebani Behbahani
- Department of Pharmacodynamics and Toxicology, School of Pharmacy; Mashhad University of Medical Sciences; Mashhad Iran
| | - Hossein Hosseinzadeh
- Department of Pharmacodynamics and Toxicology, School of Pharmacy; Mashhad University of Medical Sciences; Mashhad Iran
- Pharmaceutical Research Center, Pharmaceutical Technology Institute; Mashhad University of Medical Sciences; Mashhad Iran
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19
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Sánchez-González PD, López-Hernández FJ, Dueñas M, Prieto M, Sánchez-López E, Thomale J, Ruiz-Ortega M, López-Novoa JM, Morales AI. Differential effect of quercetin on cisplatin-induced toxicity in kidney and tumor tissues. Food Chem Toxicol 2017; 107:226-236. [PMID: 28669851 DOI: 10.1016/j.fct.2017.06.047] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 06/09/2017] [Accepted: 06/29/2017] [Indexed: 01/25/2023]
Abstract
Strategies to minimize the nephrotoxicity of platinated antineoplastics without affecting its antitumour efficacy are strongly necessary to improve the pharmacotoxicological profile of these drugs. The natural flavonoid quercetin has been shown to afford nephroprotection without affecting cisplatin antitumour effect. The purpose of the present study has been to assess the differential mechanisms of action of cisplatin and quercetin on kidney and tumour tissues that could explain these effects. Wistar rats bearing subcutaneous tumours were treated with cisplatin and quercetin (and the appropriate controls). Tumour size and renal function evolution was monitored during 6 days. Platinum and quercetin content were also determined in both tissues. All the parameters studied, including blood supply, inflammation, apoptosis, critical MAPK signaling and oxidative stress in the cisplatin-treated animals are almost normalized by quercetin in the kidneys, but unaffected in the tumours. Our results suggest that in a cancer model in vivo, the protection exerted by quercetin on cisplatin nephrotoxicity is related to its antioxidant, vascular, anti-inflammatory and antiapoptotic effects, but these properties do not affect the mechanisms responsible for the antitumour effect of cisplatin.
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Affiliation(s)
| | - Francisco J López-Hernández
- Group of Translational Research on Renal and Cardiovascular Diseases (TRECARD), Salamanca, Spain; Instituto de Estudios de Ciencias de la Salud de Castilla y León (IECSCYL), Soria, Spain; Instituto de Investigación Biomédica de Salamanca (IBSAL), Salamanca, Spain
| | - Montserrat Dueñas
- Grupo de Investigación en Polifenoles, Unidad de Nutrición y Bromatología, University of Salamanca, Spain
| | - Marta Prieto
- Unidad de Toxicología, University of Salamanca, Spain; Group of Translational Research on Renal and Cardiovascular Diseases (TRECARD), Salamanca, Spain; Instituto de Investigación Biomédica de Salamanca (IBSAL), Salamanca, Spain
| | - Elsa Sánchez-López
- Cellular Biology in Renal Diseases Laboratory, Instituto de Investigación Sanitaria Fundación Jimenez Diaz, Universidad Autónoma Madrid, Madrid, Spain
| | - Jürgen Thomale
- Institut für Zellbiologie, Universitätsklinikum Essen, Germany
| | - Marta Ruiz-Ortega
- Cellular Biology in Renal Diseases Laboratory, Instituto de Investigación Sanitaria Fundación Jimenez Diaz, Universidad Autónoma Madrid, Madrid, Spain
| | - José M López-Novoa
- Group of Translational Research on Renal and Cardiovascular Diseases (TRECARD), Salamanca, Spain; Instituto de Investigación Biomédica de Salamanca (IBSAL), Salamanca, Spain
| | - Ana I Morales
- Unidad de Toxicología, University of Salamanca, Spain; Group of Translational Research on Renal and Cardiovascular Diseases (TRECARD), Salamanca, Spain; Instituto de Investigación Biomédica de Salamanca (IBSAL), Salamanca, Spain.
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20
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Randjelovic P, Veljkovic S, Stojiljkovic N, Sokolovic D, Ilic I. Gentamicin nephrotoxicity in animals: Current knowledge and future perspectives. EXCLI JOURNAL 2017; 16:388-399. [PMID: 28507482 PMCID: PMC5427480 DOI: 10.17179/excli2017-165] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 03/07/2017] [Indexed: 12/16/2022]
Abstract
Due to high relative blood flow the kidney is prone to drug-induced damage. Aminoglycoside type antibiotic gentamicin is one of the leading cause of drug-induced nephrotoxicity. In recent years gentamicin nephrotoxicity is significantly reduced by shifting to once daily dosage as well as by eliminating known risk factors. Application of gentamicin is still related to serious side effects which are reported more often compared to other antibiotics. Because gentamicin is still heavily used and is highly efficient in treating infections, it is important to find mechanisms to reduce its nephrotoxicity. This aim can only be achieved through better understanding of kidney metabolism of gentamicin. This problem has been extensively researched in the last 20 years. The experimental results have provided evidence for almost complete understanding of mechanisms responsible for gentamicin nephrotoxicity. We now have well described morphological, biochemical and functional changes in kidney due to gentamicin application. During the years, this model has become so popular that now it is used as an experimental model for nephrotoxicity per se. This situation can mislead an ordinary reader of scientific literature that we know everything about it and there is nothing new to discover here. But quite opposite is true. The precise and complete mechanism of gentamicin nephrotoxicity is still point of speculation and an unfinished story. With emerge of new and versatile technics in biomedicine we have an opportunity to reexamine old beliefs and discover new facts. This review focuses on current knowledge in this area and gives some future perspectives.
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Affiliation(s)
- Pavle Randjelovic
- University of Niš, Faculty of Medicine, Department of Physiology, Niš, Serbia
| | - Slavimir Veljkovic
- University of Niš, Faculty of Medicine, Department of Physiology, Niš, Serbia
| | - Nenad Stojiljkovic
- University of Niš, Faculty of Medicine, Department of Physiology, Niš, Serbia
| | - Dušan Sokolovic
- University of Niš, Faculty of Medicine, Department of Biochemistry, Niš, Serbia
| | - Ivan Ilic
- University of Niš, Faculty of Medicine, Institute of Pathology, Niš, Serbia
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21
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Abdel-Azeem AS, Hegazy AM, Zeidan HM, Ibrahim KS, El-Sayed EM. Potential Renoprotective Effects of Rosemary and Thyme Against Gentamicin Toxicity in Rats. J Diet Suppl 2016; 14:380-394. [DOI: 10.1080/19390211.2016.1253632] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Amal S. Abdel-Azeem
- Department of Nutrition and Food Sciences, National Research Centre, Dokki, Giza, Egypt
| | - Amany M. Hegazy
- Department of Nutrition and Food Sciences, National Research Centre, Dokki, Giza, Egypt
| | - Hala M. Zeidan
- Department of Research on Children with Special Needs, National Research Centre, Dokki, Giza, Egypt
| | - Khadiga S. Ibrahim
- Department of Environmental and Occupational Medicine, National Research Centre, Dokki, Giza, Egypt
| | - Eman M. El-Sayed
- Department of Nutrition and Food Sciences, National Research Centre, Dokki, Giza, Egypt
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22
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Ansari MA, Raish M, Ahmad A, Ahmad SF, Mudassar S, Mohsin K, Shakeel F, Korashy HM, Bakheet SA. Sinapic acid mitigates gentamicin-induced nephrotoxicity and associated oxidative/nitrosative stress, apoptosis, and inflammation in rats. Life Sci 2016; 165:1-8. [PMID: 27664833 DOI: 10.1016/j.lfs.2016.09.014] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2016] [Revised: 09/19/2016] [Accepted: 09/20/2016] [Indexed: 12/17/2022]
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23
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Tarhan S, Özdemir F, İncesu Z, Demirkan ES. Direct and protective effects of single or combined addition of vincristine and ε-viniferin on human HepG2 cellular oxidative stress markers in vitro. Cytotechnology 2015; 68:1081-94. [PMID: 26228177 DOI: 10.1007/s10616-015-9863-z] [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: 07/17/2014] [Accepted: 02/15/2015] [Indexed: 12/21/2022] Open
Abstract
The objective of this study is to examine the direct effects of low doses and high doses of ε-viniferin, a substance known to be an antioxidant, and vincristine sulphate, a chemotherapeutic agent, alone and in combination [ε-viniferin + vincristine] on HepG2 cell strain, as well as evaluate oxidative stress after incubation periods of 3, 6, and 24 h. Direct effect was determined right after the incubation period; however, for protective effect, antioxidant protection response was determined after the treatment for 1 h with 500 μM H2O2, which is an oxidative stressor. For this purpose, superoxide dismutase was determined for enzyme activity, and lipid hydroperoxide (LPO) and reduced glutathione concentrations were studied as indicators of oxidative stress. Results show that low [3.63 µM vincristine + 3.75 µM ε-viniferin] and high [11.25 µM vincristine + 15.8 µM ε-viniferin] doses of combination groups showed similar direct antioxidant effect on LPO levels as protective when compared to the H2O2 control group (p < 0.05). Superoxide dismutase enzyme showed a direct antioxidant effect in low and high dose combination groups. In addition, when the incubation period was increased to 24 h, a protective effect was observed in both dose groups (p < 0.05). Reduced glutathione activities showed a direct effect in the low dose combination group, and a protective effect in both the low and high doses in the 24 h. These results show that combined usage of drugs in HepG2 cell strain possesses a protective effect against exogenically produced oxidative stress conditions.
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Affiliation(s)
- Seda Tarhan
- Department of Biochemistry, Medical Faculty, Eskişehir Osmangazi University, Eskisehir, Turkey
| | - Filiz Özdemir
- Department of Biochemistry, Faculty of Pharmacy, Anadolu University, 26470, Tepebası, Eskisehir, Turkey.
| | - Zerrin İncesu
- Department of Biochemistry, Faculty of Pharmacy, Anadolu University, 26470, Tepebası, Eskisehir, Turkey
| | - Emine Sütken Demirkan
- Department of Biochemistry, Medical Faculty, Eskişehir Osmangazi University, Eskisehir, Turkey
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Sadeghi F, Nematbakhsh M, Noori-Diziche A, Eshraghi-Jazi F, Talebi A, Nasri H, Mansouri A, Dehghani A, Saberi S, Shirdavani S, Ashrafi F. Protective effect of pomegranate flower extract against gentamicin-induced renal toxicity in male rats. J Renal Inj Prev 2015; 4:45-50. [PMID: 26060837 PMCID: PMC4459728 DOI: 10.12861/jrip.2015.10] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2015] [Accepted: 05/23/2015] [Indexed: 11/17/2022] Open
Abstract
Introduction: Gentamicin (GM) as an antibiotic is used in clinic. However, its administration is limited by side effects such as nephrotoxicity. Herbal extracts could be used in therapeutic approaches.
Objectives: The present study was planned to investigate whether pomegranate flower extract (PFE) could ameliorate GM-induced renal toxicity in male rats.
Materials and Methods: Twenty eight male Wistar rats were divided into 5 groups. Groups 1 and 2 respectively received PFE 25 and 50 mg/kg for 9 days. Groups 3, 4 and 5 received saline, PFE 25 mg/kg, and PFE 50 mg/kg for 9 days, respectively, and GM (100 mg/kg/day) was administered from day 3 on. Blood samples were obtained, and after sacrificing the animals, the kidneys were removed for histopathology investigations.
Results: GM alone increased the serum levels of creatinine (Cr) and blood urea nitrogen (BUN), and tissue damage and kidney weight (P < 0.05). However, administration of low dose of PFE accompanied with GM decreased these markers significantly (P < 0.05). Low dose of PFE also ameliorated weight loss induced by GM (P < 0.05).
Conclusion: It is concluded that PFE 25 mg/kg is the effective dose to ameliorate nephrotoxicity induced by GM.
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Affiliation(s)
- Ferdos Sadeghi
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran ; Department of Biology, Falavarjan Branch, Islamic Azad University, Isfahan, Iran
| | - Mehdi Nematbakhsh
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran ; Department of Physiology, Isfahan University of Medical Sciences, Isfahan, Iran ; Isfahan MN Institute of Basic and Applied Sciences Research Center, Isfahan, Iran
| | - Ali Noori-Diziche
- Department of Biology, Falavarjan Branch, Islamic Azad University, Isfahan, Iran
| | - Fatemeh Eshraghi-Jazi
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ardeshir Talebi
- Department of Clinical Pathology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hamid Nasri
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Azam Mansouri
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Aghdas Dehghani
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Shadan Saberi
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Soheila Shirdavani
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Farzaneh Ashrafi
- Department of Internal Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
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Rodríguez Salgueiro S, González Núñez L. Morphological methods to evaluate protective agents against aminoglycoside-induced nephrotoxicity. J Renal Inj Prev 2015; 4:1-3. [PMID: 25848637 PMCID: PMC4381029 DOI: 10.12861/jrip.2015.01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2014] [Accepted: 11/23/2014] [Indexed: 11/17/2022] Open
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Jain D, Somani R. Silibinin: A Bioactive Flavanone in Milk Thistle Ameliorate Gentamicin Induced Nephrotoxicity in Rats. ACTA ACUST UNITED AC 2015. [DOI: 10.5567/pharmacologia.2015.38.44] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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27
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Gordish KL, Beierwaltes WH. Sustained resveratrol infusion increases natriuresis independent of renal vasodilation. Physiol Rep 2014; 2:2/9/e12144. [PMID: 25214522 PMCID: PMC4270224 DOI: 10.14814/phy2.12144] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Resveratrol is reported to exert cardio‐renal protective effects in animal models of pathology, yet the mechanisms underlying these effects are poorly understood. Previously, we reported an i.v. bolus of resveratrol induces renal vasodilation by increasing nitric oxide bioavailability and inhibiting reactive oxygen species. Thus, we hypothesized a sustained infusion of resveratrol would also increase renal blood flow (RBF), and additionally glomerular filtration rate (GFR). We infused vehicle for 30 min followed by 30 min resveratrol at either: 0, 0.5, 1.0, 1.5 mg/min, and measured RBF, renal vascular resistance (RVR), GFR, and urinary sodium excretion. At all three doses, blood pressure and GFR remained unchanged. Control RBF was 7.69 ± 0.84 mL/min/gkw and remained unchanged by 0.5 mg/min resveratrol (7.88 ± 0.94 mL/min/gkw, n = 9), but urinary sodium excretion increased from 2.19 ± 1.1 to 5.07 ± 0.92 μmol/min/gkw (n = 7, P < 0.01). In separate experiments, 1.0 mg/min resveratrol increased RBF by 17%, from 7.16 ± 0.29 to 8.35 ± 0.42 mL/min/gkw (P < 0.01, n = 10), decreased RVR 16% from 13.63 ± 0.65 to 11.36 ± 0.75 ARU (P < 0.003) and increased sodium excretion from 1.57 ± 0.46 to 3.10 ± 0.80 μmol/min/gkw (n = 7, P < 0.04). At the 1.5 mg/min dose, resveratrol increased RBF 12% from 6.76 ± 0.57 to 7.58 ± 0.60 mL/min/gkw (n = 8, P < 0.003), decreased RVR 15% (15.58 ± 1.35 to 13.27 ± 1.14 ARU, P < 0.003) and increased sodium excretion (3.99 ± 1.71 to 7.80 ± 1.51 μmol/min/gkw, n = 8, P < 0.04). We conclude that a constant infusion of resveratrol can induce significant renal vasodilation while not altering GFR or blood pressure. Also, resveratrol infusion produced significant natriuresis at all doses, suggesting it may have a direct effect on renal tubular sodium handling independent of renal perfusion pressure or flow. We have previously documented that resveratrol causes a nitric oxide‐dependent acute renal vasodilation. We now report that sustained resveratrol has no effect on GFR but induced a remarkable natriuresis which is independent from the hemodynamic effects, suggesting resveratrol acts directly on nephron sodium reabsorption.
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Affiliation(s)
- Kevin L Gordish
- Department of Physiology, Wayne State University School of Medicine, Detroit, Michigan
| | - William H Beierwaltes
- Department of Physiology, Wayne State University School of Medicine, Detroit, Michigan Department Internal Medicine, Hypertension and Vascular Research Div., Henry Ford Hospital, Detroit, Michigan
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Fungal metabolite nigerloxin ameliorates diabetic nephropathy and gentamicin-induced renal oxidative stress in experimental rats. Naunyn Schmiedebergs Arch Pharmacol 2014; 387:849-59. [DOI: 10.1007/s00210-014-1001-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Accepted: 06/02/2014] [Indexed: 01/26/2023]
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Renal protective effects of resveratrol. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2013; 2013:568093. [PMID: 24379901 PMCID: PMC3863562 DOI: 10.1155/2013/568093] [Citation(s) in RCA: 107] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Revised: 11/06/2013] [Accepted: 11/13/2013] [Indexed: 02/06/2023]
Abstract
Resveratrol (3,5,4′-trihydroxystilbene), a natural polyphenolic compound found in grapes and red wine, is reported to have beneficial effects on cardiovascular diseases, including renal diseases. These beneficial effects are thought to be due to this compound's antioxidative properties: resveratrol is known to be a robust scavenger of reactive oxygen species (ROS). In addition to scavenging ROS, resveratrol may have numerous protective effects against age-related disorders, including renal diseases, through the activation of SIRT1. SIRT1, an NAD+-dependent deacetylase, was identified as one of the molecules through which calorie restriction extends the lifespan or delays age-related diseases, and this protein may regulate multiple cellular functions, including apoptosis, mitochondrial biogenesis, inflammation, glucose/lipid metabolism, autophagy, and adaptations to cellular stress, through the deacetylation of target proteins. Previous reports have shown that resveratrol can ameliorate several types of renal injury, such as diabetic nephropathy, drug-induced injury, aldosterone-induced injury, ischemia-reperfusion injury, sepsis-related injury, and unilateral ureteral obstruction, in animal models through its antioxidant effect or SIRT1 activation. Therefore, resveratrol may be a useful supplemental treatment for preventing renal injury.
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Resveratrol protects against arsenic trioxide-induced nephrotoxicity by facilitating arsenic metabolism and decreasing oxidative stress. Arch Toxicol 2013; 87:1025-35. [DOI: 10.1007/s00204-013-1026-4] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Accepted: 02/25/2013] [Indexed: 12/11/2022]
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31
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Quiros Y, Sánchez-González PD, López-Hernández FJ, Morales AI, López-Novoa JM. Cardiotrophin-1 Administration Prevents the Renal Toxicity of Iodinated Contrast Media in Rats. Toxicol Sci 2013; 132:493-501. [DOI: 10.1093/toxsci/kft007] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Ahn JM, You SJ, Lee YM, Oh SW, Ahn SY, Kim S, Chin HJ, Chae DW, Na KY. Hypoxia-inducible factor activation protects the kidney from gentamicin-induced acute injury. PLoS One 2012; 7:e48952. [PMID: 23145036 PMCID: PMC3493596 DOI: 10.1371/journal.pone.0048952] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Accepted: 10/03/2012] [Indexed: 01/28/2023] Open
Abstract
Gentamicin nephrotoxicity is one of the most common causes of acute kidney injury (AKI). Hypoxia-inducible factor (HIF) is effective in protecting the kidney from ischemic and toxic injury. Increased expression of HIF-1α mRNA has been reported in rats with gentamicin-induced renal injury. We hypothesizd that we could study the role of HIF in gentamicin-induced AKI by modulating HIF activity. In this study, we investigated whether HIF activation had protective effects on gentamicin-induced renal tubule cell injury. Gentamicin-induced AKI was established in male Sprague-Dawley rats. Cobalt was continuously infused into the rats to activate HIF. HK-2 cells were pre-treated with cobalt or dimethyloxalylglycine (DMOG) to activate HIF and were then exposed to gentamicin. Cobalt or DMOG significantly increased HIF-1α expression in rat kidneys and HK-2 cells. In HK-2 cells, HIF inhibited gentamicin-induced reactive oxygen species (ROS) formation. HIF also protected these cells from apoptosis by reducing caspase-3 activity and the amount of cleaved caspase-3, and -9 proteins. Increased expression of HIF-1α reduced the number of gentamicin-induced apoptotic cells in rat kidneys and HK-2 cells. HIF activation improved the creatinine clearance and proteinuria in gentamicin-induced AKI. HIF activation also ameliorated the extent of histologic injury and reduced macrophage infiltration into the tubulointerstitium. In gentamicin-induced AKI, the activation of HIF by cobalt or DMOG attenuated renal dysfunction, proteinuria, and structural damage through a reduction of oxidative stress, inflammation, and apoptosis in renal tubular epithelial cells.
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Affiliation(s)
- Jeong-myung Ahn
- Department of Internal Medicine, Maryknoll Hospital, Busan, Korea
| | - Sun Jin You
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Yun-Mi Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Se-Won Oh
- Department of Internal Medicine, Eulji General Hospital, Seongnam, Korea
| | - Shin-young Ahn
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Sejoong Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Seoul National University College of Medicine, Seoul, Korea
| | - Ho Jun Chin
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Seoul National University College of Medicine, Seoul, Korea
| | - Dong-Wan Chae
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Seoul National University College of Medicine, Seoul, Korea
| | - Ki Young Na
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Seoul National University College of Medicine, Seoul, Korea
- * E-mail:
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Resveratrol improves renal microcirculation, protects the tubular epithelium, and prolongs survival in a mouse model of sepsis-induced acute kidney injury. Kidney Int 2011; 81:370-8. [PMID: 21975863 DOI: 10.1038/ki.2011.347] [Citation(s) in RCA: 145] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The mortality rate of patients who develop acute kidney injury during sepsis nearly doubles. The effectiveness of therapy is hampered because it is usually initiated only after the onset of symptoms. As renal microvascular failure during sepsis is correlated with the generation of reactive nitrogen species, the therapeutic potential of resveratrol, a polyphenol vasodilator that is also capable of scavenging reactive nitrogen species, was investigated using the cecal ligation and puncture (CLP) murine model of sepsis-induced acute kidney injury. Resveratrol when given at 5.5 h following CLP reversed the decline in cortical capillary perfusion, assessed by intravital microscopy, at 6 h in a dose-dependent manner. Resveratrol produced the greatest improvement in capillary perfusion and increased renal blood flow and the glomerular filtration rate without raising systemic pressure. A single dose at 6 h after CLP was unable to improve renal microcirculation assessed at 18 h; however, a second dose at 12 h significantly improved microcirculation and decreased the levels of reactive nitrogen species in tubules, while improving renal function. Moreover, resveratrol given at 6, 12, and 18 h significantly improved survival. Hence, resveratrol may have a dual mechanism of action to restore the renal microcirculation and scavenge reactive nitrogen species, thus protecting the tubular epithelium even when administered after the onset of sepsis.
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Sanchez-Gonzalez PD, Lopez-Hernandez FJ, Perez-Barriocanal F, Morales AI, Lopez-Novoa JM. Quercetin reduces cisplatin nephrotoxicity in rats without compromising its anti-tumour activity. Nephrol Dial Transplant 2011; 26:3484-95. [DOI: 10.1093/ndt/gfr195] [Citation(s) in RCA: 111] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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Lopez-Novoa JM, Quiros Y, Vicente L, Morales AI, Lopez-Hernandez FJ. New insights into the mechanism of aminoglycoside nephrotoxicity: an integrative point of view. Kidney Int 2010; 79:33-45. [PMID: 20861826 DOI: 10.1038/ki.2010.337] [Citation(s) in RCA: 410] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Nephrotoxicity is one of the most important side effects and therapeutical limitations of aminoglycoside antibiotics, especially gentamicin. Despite rigorous patient monitoring, nephrotoxicity appears in 10-25% of therapeutic courses. Traditionally, aminoglycoside nephrotoxicity has been considered to result mainly from tubular damage. Both lethal and sub-lethal alterations in tubular cells handicap reabsorption and, in severe cases, may lead to a significant tubular obstruction. However, a reduced glomerular filtration is necessary to explain the symptoms of the disease. Reduced filtration is not solely the result of tubular obstruction and tubular malfunction, resulting in tubuloglomerular feedback activation; renal vasoconstriction and mesangial contraction are also crucial to fully explain aminoglycoside nephrotoxicity. This review critically presents an integrative view on the interactions of tubular, glomerular, and vascular effects of gentamicin, in the context of the most recent information available. Moreover, it discusses therapeutic perspectives for prevention of aminoglycoside nephrotoxicity derived from the pathophysiological knowledge.
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Affiliation(s)
- Jose M Lopez-Novoa
- Unidad de Fisiopatología Renal y Cardiovascular, Departamento de Fisiología y Farmacología, Universidad de Salamanca, Salamanca, Spain.
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Quiros Y, Vicente-Vicente L, Morales AI, Lopez-Novoa JM, Lopez-Hernandez FJ. An Integrative Overview on the Mechanisms Underlying the Renal Tubular Cytotoxicity of Gentamicin. Toxicol Sci 2010; 119:245-56. [DOI: 10.1093/toxsci/kfq267] [Citation(s) in RCA: 162] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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37
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Holthoff JH, Woodling KA, Doerge DR, Burns ST, Hinson JA, Mayeux PR. Resveratrol, a dietary polyphenolic phytoalexin, is a functional scavenger of peroxynitrite. Biochem Pharmacol 2010; 80:1260-5. [PMID: 20599800 DOI: 10.1016/j.bcp.2010.06.027] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2010] [Revised: 06/16/2010] [Accepted: 06/16/2010] [Indexed: 02/07/2023]
Abstract
Oxidant damage from reactive oxygen species (ROS) and reactive nitrogen species (RNS) is a major contributor to the cellular damage seen in numerous types of renal injury. Resveratrol (trans-3,4',5-trihydroxystilbene) is a phytoalexin found naturally in many common food sources. The anti-oxidant properties of resveratrol are of particular interest because of the fundamental role that oxidant damage plays in numerous forms of kidney injury. To examine whether resveratrol could block damage to the renal epithelial cell line, mIMCD-3, cells were exposed to the peroxynitrite donor 5-amino-3-(4-morpholinyl)-1,2,3-oxadiazolium chloride (SIN-1). Resveratrol produced a concentration-dependent inhibition of cytotoxicity induced by SIN-1. To examine the mechanism of protection, resveratrol was incubated with authentic peroxynitrite and found to block nitration of bovine serum albumin with an EC(50) value of 22.7 microM, in contrast to the known RNS scavenger, N-acetyl-l-cysteine, which inhibited nitration with an EC(50) value of 439 microM. These data suggested that resveratrol could provide functional protection by directly scavenging peroxynitrite. To examine whether resveratrol was a substrate for peroxynitrite oxidation, resveratrol was reacted with authentic peroxynitrite. Resveratrol nitration products and dimers were detected using liquid chromatograph with tandem electrospray mass spectrometry. Similar products were detected in the media of cells treated with SIN-1 and resveratrol. Taken collectively, the data suggest that resveratrol is able to provide functional protection of renal tubular cells, at least in part, by directly scavenging the RNS peroxynitrite. This property of resveratrol may contribute to the understanding of its anti-oxidant activities.
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Affiliation(s)
- Joseph H Holthoff
- Department of Pharmacology and Toxicology, University of Arkansas for Medical Sciences, Little Rock, AR, USA
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38
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Morales AI, Detaille D, Prieto M, Puente A, Briones E, Arévalo M, Leverve X, López-Novoa JM, El-Mir MY. Metformin prevents experimental gentamicin-induced nephropathy by a mitochondria-dependent pathway. Kidney Int 2010; 77:861-9. [PMID: 20164825 DOI: 10.1038/ki.2010.11] [Citation(s) in RCA: 201] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The antidiabetic drug metformin can diminish apoptosis induced by oxidative stress in endothelial cells and prevent vascular dysfunction even in nondiabetic patients. Here we tested whether it has a beneficial effect in a rat model of gentamicin toxicity. Mitochondrial analysis, respiration intensity, levels of reactive oxygen species, permeability transition, and cytochrome c release were assessed 3 and 6 days after gentamicin administration. Metformin treatment fully blocked gentamicin-mediated acute renal failure. This was accompanied by a lower activity of N-acetyl-beta-D-glucosaminidase, together with a decrease of lipid peroxidation and increase of antioxidant systems. Metformin also protected the kidney from histological damage 6 days after gentamicin administration. These in vivo markers of kidney dysfunction and their correction by metformin were complemented by in vitro studies of mitochondrial function. We found that gentamicin treatment depleted respiratory components (cytochrome c, NADH), probably due to the opening of mitochondrial transition pores. These injuries, partly mediated by a rise in reactive oxygen species from the electron transfer chain, were significantly decreased by metformin. Thus, our study suggests that pleiotropic effects of metformin can lessen gentamicin nephrotoxicity and improve mitochondrial homeostasis.
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Affiliation(s)
- Ana I Morales
- Department of Physiology and Pharmacology, University of Salamanca, Salamanca, Spain
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39
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Jeyanthi T, Subramanian P. Nephroprotective Effect ofWithania somnifera:A Dose-Dependent Study. Ren Fail 2009; 31:814-21. [DOI: 10.3109/08860220903150320] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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40
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Hsieh TC. Uptake of resveratrol and role of resveratrol-targeting protein, quinone reductase 2, in normally cultured human prostate cells. Asian J Androl 2009; 11:653-61. [PMID: 19767760 DOI: 10.1038/aja.2009.56] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Resveratrol is a dietary polyphenol espoused to have chemopreventive activity against a variety of human cancer types. We first reported that resveratrol significantly decreases the proliferation of both androgen-dependent and hormone-refractory prostate cancer cells. However, the effects of resveratrol in normal prostate epithelial and stromal cells, particularly with regard to its uptake, subcellular distribution and intracellular targets, have not been investigated. To advance the knowledge on accessibility and cellular disposition of resveratrol in prostate cells, [(3)H] resveratrol, fractionation of cell extracts into subcellular compartments, Western blot analysis, resveratrol affinity column chromatography and flow cytometry were used to study the uptake and intracellular distribution of resveratrol in normally cultured prostate stromal (PrSCs) and epithelial cells (PrECs). Pretreatment of both PrSCs and PrECs for 2 days with resveratrol modulated its uptake and selectively increased its distribution to the membrane and organelle compartments. Resveratrol affinity column chromatography studies showed differential expression of a previously identified resveratrol-targeting protein, quinone reductase 2 (QR2), in PrSCs and PrECs. Flow cytometric analysis comparing resveratrol-treated and untreated PrSCs showed a large decrease in G(1)-phase and a concomitant increase in S and G(2)/M-phases of the cell cycle. These results suggest that resveratrol suppresses PrSC proliferation by affecting cell cycle phase distribution, which may involve the participation by QR2.
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Affiliation(s)
- Tze-Chen Hsieh
- Department of Biochemistry and Molecular Biology, New York Medical College, Valhalla, NY 10595, USA.
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41
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Obesity and cardiovascular dysfunction: A role for resveratrol? Obes Res Clin Pract 2009; 3:1-52. [DOI: 10.1016/j.orcp.2008.10.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2008] [Revised: 10/24/2008] [Accepted: 10/25/2008] [Indexed: 11/22/2022]
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42
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Sebai H, Ben-Attia M, Sani M, Aouani E, Ghanem-Boughanmi N. Protective effect of resveratrol on acute endotoxemia-induced nephrotoxicity in rat through nitric oxide independent mechanism. Free Radic Res 2009; 42:913-20. [PMID: 19031312 DOI: 10.1080/10715760802555577] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Lipopolysaccharide (LPS) is a glycolipid component of the cell wall of gram negative bacteria inducing deleterious effects on the kidney. Endotoxemia-induced nephrotoxicity is characterized by disturbed intracellular redox balance and reactive oxygen species (ROS) accumulation leading to DNA, proteins and membrane lipid damages. Resveratrol (trans-3,5,4'-trihydroxystilbene) is a polyphenol displaying antioxidant and anti-inflammatory properties. This study investigated its effects on LPS-induced nephrotoxicity in rats. Resveratrol counteracted all LPS-induced changes in renal haemodynamic parameters. In the kidney resveratrol abrogated LPS-induced lipoperoxidation and antioxidant enzyme activities depletion as superoxide dismutase (SOD) and catalase (CAT) but not peroxidase (POD) activity. LPS increased plasma and urine nitric oxide (NO) level and resveratrol reversed them. More importantly, LPS-induced iron mobilization from plasma to kidney, which was also abolished by resveratrol treatment. All these results suggest that resveratrol exerted strong antioxidant properties against LPS-induced nephrotoxicity and that its mode of action seemed to involve iron shuttling proteins.
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Affiliation(s)
- Hichem Sebai
- UR Ethnobotanie & Stress Oxydant, Departement des Sciences de la Vie, Faculte des Sciences de Bizerte, Zarzouna, Tunisie
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43
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Abdel-Raheem IT, Abdel-Ghany AA, Mohamed GA. Protective Effect of Quercetin against Gentamicin-Induced Nephrotoxicity in Rats. Biol Pharm Bull 2009; 32:61-7. [DOI: 10.1248/bpb.32.61] [Citation(s) in RCA: 103] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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44
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Do Amaral CL, Francescato HDC, Coimbra TM, Costa RS, Darin JDC, Antunes LMG, Bianchi MDLP. Resveratrol attenuates cisplatin-induced nephrotoxicity in rats. Arch Toxicol 2007; 82:363-70. [DOI: 10.1007/s00204-007-0262-x] [Citation(s) in RCA: 90] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2007] [Accepted: 10/31/2007] [Indexed: 01/29/2023]
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45
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Martínez-Salgado C, López-Hernández FJ, López-Novoa JM. Glomerular nephrotoxicity of aminoglycosides. Toxicol Appl Pharmacol 2007; 223:86-98. [PMID: 17602717 DOI: 10.1016/j.taap.2007.05.004] [Citation(s) in RCA: 144] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2007] [Revised: 04/17/2007] [Accepted: 05/10/2007] [Indexed: 11/23/2022]
Abstract
Aminoglycoside antibiotics are the most commonly used antibiotics worldwide in the treatment of Gram-negative bacterial infections. However, aminoglycosides induce nephrotoxicity in 10-20% of therapeutic courses. Aminoglycoside-induced nephrotoxicity is characterized by slow rises in serum creatinine, tubular necrosis and marked decreases in glomerular filtration rate and in the ultrafiltration coefficient. Regulation of the ultrafiltration coefficient depends on the activity of intraglomerular mesangial cells. The mechanisms responsible for tubular nephrotoxicity of aminoglycosides have been intensively reviewed previously, but glomerular toxicity has received less attention. The purpose of this review is to critically assess the published literature regarding the toxic mechanisms of action of aminoglycosides on renal glomeruli and mesangial cells. The main goal of this review is to provide an actualized and mechanistic vision of pathways involved in glomerular toxic effects of aminoglycosides.
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Affiliation(s)
- Carlos Martínez-Salgado
- Unidad de Investigación, Hospital Universitario de Salamanca, Paseo San Vicente 58-182, 37007 Salamanca, Spain.
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46
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de Jesus Soares T, Volpini RA, Francescato HDC, Costa RS, da Silva CGA, Coimbra TM. Effects of resveratrol on glycerol-induced renal injury. Life Sci 2007; 81:647-56. [PMID: 17698148 DOI: 10.1016/j.lfs.2007.06.032] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2007] [Revised: 06/22/2007] [Accepted: 06/28/2007] [Indexed: 11/26/2022]
Abstract
Glycerol-induced renal lesions can have many causes, including increased oxidative stress and inflammation. Resveratrol, a polyphenolic phytoalexin found in grapes and red wine, is an antioxidant agent with anti-inflammatory effects. In the present study, we investigated the possible protective effect of resveratrol on glycerol-induced nephrotoxicity. Male Wistar rats were injected intramuscularly with 8 ml/kg of either 50% glycerol (n=18), glycerol+resveratrol (n=22), 0.15 M saline (n=14), saline+carboxymethylcellulose (n=10) or saline+resveratrol (n=8). The rats were killed 3 days after the injections, at which time the kidneys were removed for histological and immunohistochemical studies and lipid peroxidation determination. Blood and urine samples were collected in order to quantify sodium and creatinine. The results of the histological and immunohistochemical studies were scored according to the extent of damage and immunostaining, respectively, in the cortical tubulointerstitium. Lipid peroxidation was estimated by measuring malondialdehyde in renal tissue samples collected from control rats and glycerol-injected rats. By postinjection day 3, glycerol-only treated rats presented increases in plasma creatinine levels, as well as in fractional excretion of sodium and potassium (P<0.001). These increases were less pronounced in glycerol+resveratrol-treated rats (P<0.05). Cortical expression of macrophages, lymphocytes, nuclear factor-kappa B, heme oxygenase-1 and nitrotyrosine was greater in glycerol-treated rats than in controls (P<0.001). In addition, the histological findings for glycerol-treated rats were characteristic of acute tubular necrosis. Resveratrol attenuated all of these alterations (P<0.001). We conclude that resveratrol ameliorates glycerol-induced renal injury by suppressing the inflammatory process and by inhibiting lipid peroxidation.
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Affiliation(s)
- Telma de Jesus Soares
- Department of Physiology, University of São Paulo at Ribeirão Preto School of Medicine, Ribeirão Preto, São Paulo, 14049-900, Brazil
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47
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Silan C, Uzun O, Comunoğlu NU, Gokçen S, Bedirhan S, Cengiz M. Gentamicin-induced nephrotoxicity in rats ameliorated and healing effects of resveratrol. Biol Pharm Bull 2007; 30:79-83. [PMID: 17202664 DOI: 10.1248/bpb.30.79] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In this study, we aimed to investigate the possible protective effect of resveratrol on gentamicin induced nephrotoxicity. Experiments were carried out in male Wistar rats weighing 200-250 g. Gentamicin sulfate (80 mg/kg per day i.p.), resveratrol (10 mg/kg per day i.p.) and gentamicin together with resveratrol were administered for 6 d. The animals were sacrificed 24 h after the last injection. Urine, blood samples and tissue samples were collected from the animals on the seventh day of the treatment before they were sacrificed. Kidneys were collected for histopathological studies and fixed in 10% buffered formalin solution. Tissue samples were stored at -70 degrees C in liquid nitrogen for the determination of glutathione (GSH), glutathione-S-transferase (GST), malondialdehyde (MDA) and catalase (CAT). Glutathione assay was determined by the method of Beutler et al. GST amounts were measured by the method of Habig et al. Catalase activity was tested by Aebi's method and MDA was determined according to Thayer's method. Blood urea level was significantly increased in the gentamicin treated group. The study showed lowered levels of urea and creatinine levels in resveratrol administered groups when compared with gentamicin administered rats, and the difference was statistically significant. It has been determined that resveratrol caused statistically significant decrease in lipid peroxidation and reduced the level of catalase. Histopathological examination showed that resveratrol prevented partly gentamicin induced tubular damage. The results histopathologically demonstrated that resveratrol has a protective effect against gentamicin induced nephrotoxicity, lipid peroxidation and cellular damage in rats.
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Affiliation(s)
- Coşkun Silan
- Department of Pharmacology, Faculty of Medicine, Düzce University, Türkiye.
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48
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Morales AI, Vicente-Sánchez C, Sandoval JMS, Egido J, Mayoral P, Arévalo MA, Fernández-Tagarro M, López-Novoa JM, Pérez-Barriocanal F. Protective effect of quercetin on experimental chronic cadmium nephrotoxicity in rats is based on its antioxidant properties. Food Chem Toxicol 2006; 44:2092-100. [PMID: 16962696 DOI: 10.1016/j.fct.2006.07.012] [Citation(s) in RCA: 124] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2006] [Revised: 07/06/2006] [Accepted: 07/10/2006] [Indexed: 11/29/2022]
Abstract
Oxidative stress can play a key role in Cd-induced dysfunctions. Quercetin is a potent oxygen free radicals scavenger and a metal chelator. Our aim was to study the effect of quercetin on Cd-induced kidney damage and oxidative stress as well as its mechanism of action. Wistar rats were distributed in four experimental groups: control rats; Cd; quercetin and Cd+quercetin. Renal toxicity was evaluated by measuring urinary excretion of proteins, albumin, glucose and enzymes markers of tubular necrosis, as well as plasma concentration of creatinine. Plasma TBARS concentration and activity of antioxidant enzymes in kidney were also measured. Renal cell damage was assessed by electron microscopy. Animals that received both Cd and quercetin showed a better renal function than those receiving Cd alone. Cd-induced tubular lesions were markedly reduced in rats that also received quercetin. Cd-induced increase in plasma TBARS was prevented by the administration of quercetin. Total plasma antioxidants and renal superoxide dismutase and glutathione-reductase activities were higher in the group that received Cd and quercetin than in rats that received Cd alone. Quercetin administration does not modify the renal content or the urinary excretion of Cd. In conclusion, quercetin treatment prevents renal tubular damage and increased oxidative stress induced by chronic Cd administration, most probably throughout its antioxidant properties.
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Affiliation(s)
- A I Morales
- Instituto Reina Sofía de Investigación Nefrológica, Departamento de Fisiología y Farmacología, Edificio Departamental, Campus Miguel de Unamuno, Universidad de Salamanca, 37007 Salamanca, Spain
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49
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Abstract
Resveratrol, a constituent of red wine, has long been suspected to have cardioprotective effects. Interest in this compound has been renewed in recent years, first from its identification as a chemopreventive agent for skin cancer, and subsequently from reports that it activates sirtuin deacetylases and extends the lifespans of lower organisms. Despite scepticism concerning its bioavailability, a growing body of in vivo evidence indicates that resveratrol has protective effects in rodent models of stress and disease. Here, we provide a comprehensive and critical review of the in vivo data on resveratrol, and consider its potential as a therapeutic for humans.
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Affiliation(s)
- Joseph A Baur
- Paul F. Glenn Laboratories for the Biological Mechanisms of Aging, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, Massachusetts 02115, USA
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50
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Kuhad A, Tirkey N, Pilkhwal S, Chopra K. Effect of Spirulina, a blue green algae, on gentamicin-induced oxidative stress and renal dysfunction in rats. Fundam Clin Pharmacol 2006; 20:121-8. [PMID: 16573712 DOI: 10.1111/j.1472-8206.2006.00396.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Gentamicin (GM), an aminoglycoside, is widely employed in clinical practice for the treatment of serious Gram-negative infections. The clinical utility of GM is limited by the frequent incidence of acute renal failure. Experimental evidences suggest that oxidative and nitrosative stress play an important role in GM nephrotoxicity. Spirulina fusiformis is a blue green algae with potent free radical scavenging properties. The present study was designed to investigate renoprotective potential of S. fusiformis, against GM-induced oxidative stress and renal dysfunction. Spirulina fusiformis (500, 1000, 1500 mg/kg, p.o.) was administered 2 days before and 8 days concurrently with GM (100 mg/kg, i.p.). Renal injury was assessed by measuring serum creatinine, blood urea nitrogen and creatinine clearance and serum nitrite levels. Renal oxidative stress was determined by renal malondialdehyde levels, reduced glutathione levels and by enzymatic activity of superoxide dismutase (SOD) and catalase. Chronic GM administration resulted in marked renal oxidative and nitrosative stress and significantly deranged renal functions. Treatment with S. fusiformis significantly and dose-dependently restored renal functions, reduced lipid peroxidation and enhanced reduced glutathione levels, SOD and catalase activities. The results of present study clearly demonstrate the pivotal role of reactive oxygen species and their relation to renal dysfunction and point to the therapeutic potential of S. fusiformis in GM-induced nephrotoxicity.
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Affiliation(s)
- Anurag Kuhad
- Pharmacology Division, University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh 160014, India
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