1
|
Soliman E, Elshazly SM, Shewaikh SM, El-Shaarawy F. Reno- and hepato-protective effect of allopurinol after renal ischemia/reperfusion injury: Crosstalk between xanthine oxidase and peroxisome proliferator-activated receptor gamma signaling. Food Chem Toxicol 2023:113868. [PMID: 37269893 DOI: 10.1016/j.fct.2023.113868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 05/21/2023] [Accepted: 05/31/2023] [Indexed: 06/05/2023]
Abstract
Renal ischemia/reperfusion (I/R) is a common cause of acute kidney injury and remote liver damage is an ultimate negative outcome. Current treatments for I/R typically involve the use of antioxidants and anti-inflammatory to protect against oxidative stress and inflammation. Xanthine oxidase (XO) and PPAR-γ contribute to renal I/R-induced oxidative stress; however, the crosstalk between the two pathways remains unexplored. In the present study, we report that XO inhibitor, allopurinol (ALP), protects kidney and liver after renal I/R by PPAR-γ activation. Rats with renal I/R showed reduced kidney and liver functions, increased XO, and decreased PPAR-γ. ALP increased PPAR-γ expression and improved liver and kidney functions. ALP also reduced inflammation and nitrosative stress indicated by reduction in TNF-α, iNOS, nitric oxide (NO), and peroxynitrite formation. Interestingly, rats co-treated with PPAR-γ inhibitor, BADGE, and ALP showed diminished beneficial effect on renal and kidney functions, inflammation, and nitrosative stress. This data suggests that downregulation of PPAR-γ contributes to nitrosative stress and inflammation in renal I/R and the use of ALP reverses this effect by increasing PPAR-γ expression. In conclusion, this study highlights the potential therapeutic value of ALP and suggests targeting XO-PPAR-γ pathway as a promising strategy for preventing I/R injury.
Collapse
Affiliation(s)
- Eman Soliman
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt.
| | - Shimaa Mustafa Elshazly
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt.
| | - Samar M Shewaikh
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt.
| | - Fatma El-Shaarawy
- Department of Biochemistry, Faculty of Pharmacy, Sinai University, El-Arish, 45511, Egypt.
| |
Collapse
|
2
|
Grzelakowska A, Modrzejewska J, Kolińska J, Szala M, Zielonka M, Dębowska K, Zakłos-Szyda M, Sikora A, Zielonka J, Podsiadły R. Water-soluble cationic boronate probe based on coumarin imidazolium scaffold: Synthesis, characterization, and application to cellular peroxynitrite detection. Free Radic Biol Med 2022; 179:34-46. [PMID: 34923103 DOI: 10.1016/j.freeradbiomed.2021.12.260] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 12/07/2021] [Accepted: 12/14/2021] [Indexed: 02/08/2023]
Abstract
Peroxynitrite (ONOO-) has been implicated in numerous pathologies associated with an inflammatory component, but its selective and sensitive detection in biological settings remains a challenge. Here, the development of a new water-soluble and cationic boronate probe based on a coumarin-imidazolium scaffold (CI-Bz-BA) for the fluorescent detection of ONOO- in cells is reported. The chemical reactivity of the CI-Bz-BA probe toward selected oxidants known to react with the boronate moiety was characterized, and the suitability of the probe for the direct detection of ONOO- in cell-free and cellular system is reported. Oxidation of the probe results in the formation of the primary hydroxybenzyl product (CI-Bz-OH), followed by the spontaneous elimination of the quinone methide moiety to produce the secondary phenol (CI-OH), which is accompanied by a red shift in the fluorescence emission band from 405 nm to 481 nm. CI-Bz-BA reacts with ONOO- stoichiometrically with a rate constant of ∼1 × 106 M-1s-1 to form, in addition to the major phenolic product CI-OH, the minor nitrated product CI-Bz-NO2, which is not formed by other oxidants tested or via myeloperoxidase-catalyzed oxidation/nitration. Both CI-OH and CI-Bz-NO2 products were also formed in the presence of cogenerated fluxes of nitric oxide and superoxide radical anion produced during decomposition of a SIN-1 donor. Using RAW 264.7 cells, we demonstrate the ability of the probe to report endogenously produced ONOO-via fluorescence measurements, including plate reader real time monitoring and two-photon fluorescence imaging. Liquid chromatography/mass spectrometry analyses of cell extracts and media confirmed the formation of both CI-OH and CI-Bz-NO2 in macrophages activated to produce ONOO-. We propose the use of a combination of real-time monitoring of probe oxidation using fluorimetry and fluorescence microscopy with liquid chromatography/mass spectrometry-based product identification for rigorous detection and quantitative analyses of ONOO- in biological systems.
Collapse
Affiliation(s)
- Aleksandra Grzelakowska
- Institute of Polymer and Dye Technology, Faculty of Chemistry, Lodz University of Technology, Stefanowskiego 16, 90-537, Lodz, Poland.
| | - Julia Modrzejewska
- Institute of Polymer and Dye Technology, Faculty of Chemistry, Lodz University of Technology, Stefanowskiego 16, 90-537, Lodz, Poland.
| | - Jolanta Kolińska
- Institute of Polymer and Dye Technology, Faculty of Chemistry, Lodz University of Technology, Stefanowskiego 16, 90-537, Lodz, Poland.
| | - Marcin Szala
- Institute of Polymer and Dye Technology, Faculty of Chemistry, Lodz University of Technology, Stefanowskiego 16, 90-537, Lodz, Poland.
| | - Monika Zielonka
- Department of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, United States.
| | - Karolina Dębowska
- Institute of Applied Radiation Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924, Lodz, Poland.
| | - Małgorzata Zakłos-Szyda
- Institute of Molecular and Industrial Biotechnology, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, Stefanowskiego 2/22, 90-537, Lodz, Poland.
| | - Adam Sikora
- Institute of Applied Radiation Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924, Lodz, Poland.
| | - Jacek Zielonka
- Department of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, United States.
| | - Radosław Podsiadły
- Institute of Polymer and Dye Technology, Faculty of Chemistry, Lodz University of Technology, Stefanowskiego 16, 90-537, Lodz, Poland.
| |
Collapse
|
3
|
Pereira BP, do Vale GT, Ceron CS. The role of nitric oxide in renovascular hypertension: from the pathophysiology to the treatment. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2022; 395:121-131. [PMID: 34994823 DOI: 10.1007/s00210-021-02186-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 11/17/2021] [Indexed: 12/25/2022]
Abstract
Renovascular hypertension is one of the most relevant causes of secondary hypertension, mostly caused by atherosclerotic renovascular stenosis or fibromuscular dysplasia. The increase in angiotensin II production, oxidative stress, and formation of peroxynitrite promotes the decrease in nitric oxide (NO) availability and the development of hypertension, renal and endothelial dysfunction, and cardiac and vascular remodeling. The NO produced by nitric oxide synthases (NOS) acts as a vasodilator; however, endothelial NOS uncoupling (eNOS) also contributes to NO reduced availability in renovascular hypertension. NO donors and NO-derived metabolites have been investigated in experimental renovascular hypertension and have shown promissory effects in attenuating blood pressure and organ damage in this condition. Therefore, understanding the role of decreased NO in the pathophysiology of renovascular hypertension promotes the study and development of NO donors and molecules that can be converted into NO (such as nitrate and nitrite), contributing for the treatment of this condition in the future.
Collapse
Affiliation(s)
- Bruna Pinheiro Pereira
- Departamento de Alimentos E Medicamentos, Universidade Federal de Alfenas (UNIFAL-MG), Alfenas, Minas Gerais, Brazil
| | - Gabriel Tavares do Vale
- Departamento de Ciências Biomédicas E da Saúde, Universidade Do Estado de Minas Gerais (UEMG), Belo Horizonte, Minas Gerais, Brazil
| | - Carla Speroni Ceron
- Departamento de Ciências Biológicas, Universidade Federal de Ouro Preto (UFOP), Ouro Preto, Minas Gerais, Brasil.
| |
Collapse
|
4
|
Carcy R, Cougnon M, Poet M, Durandy M, Sicard A, Counillon L, Blondeau N, Hauet T, Tauc M, F Pisani D. Targeting oxidative stress, a crucial challenge in renal transplantation outcome. Free Radic Biol Med 2021; 169:258-270. [PMID: 33892115 DOI: 10.1016/j.freeradbiomed.2021.04.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 03/31/2021] [Accepted: 04/15/2021] [Indexed: 02/07/2023]
Abstract
Disorders characterized by ischemia/reperfusion (I/R) are the most common causes of debilitating diseases and death in stroke, cardiovascular ischemia, acute kidney injury or organ transplantation. In the latter example the I/R step defines both the amplitude of the damages to the graft and the functional recovery outcome. During transplantation the kidney is subjected to blood flow arrest followed by a sudden increase in oxygen supply at the time of reperfusion. This essential clinical protocol causes massive oxidative stress which is at the basis of cell death and tissue damage. The involvement of both reactive oxygen species (ROS) and nitric oxides (NO) has been shown to be a major cause of these cellular damages. In fact, in non-physiological situations, these species escape endogenous antioxidant control and dangerously accumulate in cells. In recent years, the objective has been to find clinical and pharmacological treatments to reduce or prevent the appearance of oxidative stress in ischemic pathologies. This is very relevant because, due to the increasing success of organ transplantation, clinicians are required to use limit organs, the preservation of which against oxidative stress is crucial for a better outcome. This review highlights the key actors in oxidative stress which could represent new pharmacological targets.
Collapse
Affiliation(s)
- Romain Carcy
- Université Côte d'Azur, CNRS, LP2M, Nice, France; CHU Nice, Hôpital Pasteur 2, Service de Réanimation Polyvalente et Service de Réanimation des Urgences Vitales, Nice, France; Laboratories of Excellence Ion Channel Science and Therapeutics, Nice, France
| | - Marc Cougnon
- Université Côte d'Azur, CNRS, LP2M, Nice, France; Laboratories of Excellence Ion Channel Science and Therapeutics, Nice, France
| | - Mallorie Poet
- Université Côte d'Azur, CNRS, LP2M, Nice, France; Laboratories of Excellence Ion Channel Science and Therapeutics, Nice, France
| | - Manon Durandy
- Université Côte d'Azur, CNRS, LP2M, Nice, France; Laboratories of Excellence Ion Channel Science and Therapeutics, Nice, France
| | - Antoine Sicard
- Université Côte d'Azur, CNRS, LP2M, Nice, France; Laboratories of Excellence Ion Channel Science and Therapeutics, Nice, France; CHU Nice, Hôpital Pasteur 2, Service de Néphrologie-Dialyse-Transplantation, Nice, France; Clinical Research Unit of Université Côte d'Azur (UMR2CA), France
| | - Laurent Counillon
- Université Côte d'Azur, CNRS, LP2M, Nice, France; Laboratories of Excellence Ion Channel Science and Therapeutics, Nice, France
| | | | - Thierry Hauet
- Université de Poitiers, INSERM, IRTOMIT, CHU de Poitiers, La Milétrie, Poitiers, France
| | - Michel Tauc
- Université Côte d'Azur, CNRS, LP2M, Nice, France; Laboratories of Excellence Ion Channel Science and Therapeutics, Nice, France
| | - Didier F Pisani
- Université Côte d'Azur, CNRS, LP2M, Nice, France; Laboratories of Excellence Ion Channel Science and Therapeutics, Nice, France.
| |
Collapse
|
5
|
Kumar Sharma A, Kaur A, Kaur T, Kaur S, Pathak D, Singh AP. Ameliorative role of inducible nitric oxide synthase inhibitors against sodium arsenite-induced renal and hepatic dysfunction in rats. Drug Chem Toxicol 2021; 45:2255-2261. [PMID: 34006163 DOI: 10.1080/01480545.2021.1926109] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Arsenic exposure causes immense health distress by increasing risk of cardiovascular abnormalities, diabetes mellitus, neurotoxicity, and nephrotoxicity. The present study explored the role of inducible nitric oxide synthase (iNOS) inhibitors against sodium arsenite-induced renal and hepatic dysfunction in rats. Female Sprague Dawley rats were subjected to arsenic toxicity by administering sodium arsenite (5 mg/kg/day, oral) for 4 weeks. The iNOS inhibitors, S-methylisothiourea (10 mg/kg, i.p.) and aminoguanidine (100 mg/kg, i.p.) were given one hour before sodium arsenite administration in rats for 4 weeks. Sodium arsenite led rise in serum creatinine, urea, uric acid, electrolytes (potassium, fractional excretion of sodium), microproteinuria, and decreased creatinine clearance (p < 0.001) indicated renal dysfunction in rats. Arsenic-intoxication resulted in significant oxidative stress in rat kidneys, which was measured in terms of increase in lipid peroxides, superoxide anion generation and decrease in reduced glutathione (p < 0.001) levels. A threefold increase in renal hydroxyproline level in arsenic intoxicated rats indicated fibrosis. Hematoxylin-eosin staining indicated tubular damage, whereas picrosirius red staining highlighted collagen deposition in rat kidneys. S-methylisothiourea and aminoguanidine improved renal function and attenuated arsenic led renal oxidative stress, fibrosis, and decreased the kidney injury score. Additionally, arsenite-intoxication resulted in significant rise in hepatic parameters (serum aspartate aminotransferase, alanine transferase, alkaline phosphatase, and bilirubin (p < 0.001) along with multi-fold increase in oxidative stress, fibrosis and liver injury score in rats, which was significantly (p < 0.001) attenuated by concurrent administration of iNOS inhibitors). Hence, it is concluded that iNOS inhibitors attenuate sodium arsenite-induced renal and hepatic dysfunction in rats.
Collapse
Affiliation(s)
- Ashwani Kumar Sharma
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, India
| | - Anmoldeep Kaur
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, India
| | - Tajpreet Kaur
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, India.,Department of Pharmacology, Khalsa College of Pharmacy, Amritsar, India
| | - Sarabjit Kaur
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, India
| | - Devendra Pathak
- Department of Veterinary Anatomy, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, India
| | - Amrit Pal Singh
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, India
| |
Collapse
|
6
|
Soliman E, Shewaikh SM, Fahmy A, Elshazly S. Entacapone scavenges peroxynitrite and protects against kidney and liver injuries induced by renal ischemia/reperfusion in rats. Int Urol Nephrol 2021; 53:1713-1721. [PMID: 33675481 DOI: 10.1007/s11255-021-02827-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 02/24/2021] [Indexed: 12/11/2022]
Abstract
BACKGROUND Acute kidney injury (AKI), secondary to renal ischemia/reperfusion (I/R), is a serious problem associated with high mortality. The pathophysiology of AKI after renal I/R involves peroxynitrite production; hence, scavenging this metabolite may rescue AKI. Entacapone is a catechol-O-methyl transferase (COMT) inhibitor which elicits antioxidant activity by scavenging peroxynitrite. Therefore, we hypothesized that the peroxynitrite scavenging activity of entacopone protects against AKI after renal I/R injury in rats. METHODS Male Wistar rats were given either entacapone or a well-known peroxynitrite scavenger (FeTPPS) daily for 10 days before I/R procedures. I/R was induced by occluding both renal pedicles for 45 min followed by reperfusion for 24 h. RESULTS Pre-treatment with either entacapone or FeTPPS improved renal function as indicated by a significant reduction in serum creatinine and urea when compared to I/R group (P < 0.05). I/R injury increased renal levels of NO (4-folds, P < 0.05), iNOS (4-folds, P < 0.05), and 3-nitrotyrosine (5-folds, P < 0.05) compared to sham control. These effects were abrogated in animals pre-treated with entacapone or FeTPPS before being subjected to I/R (P < 0.05). In addition, entacapone or FeTPPS significantly inhibited I/R-induced elevation in renal TNF-α levels (78% and 58%, respectively) and caspase-3 activity (72% and 56%, respectively) indicating the reduction of both inflammation and apoptosis in the kidney (P < 0.05). The two drugs also improved kidney and liver functions in rats with renal I/R injury. CONCLUSION Our study showed that entacapone and FeTPPS protected against AKI and remote liver damage associated with renal I/R and this effect might be due to scavenging peroxynitrite and reducing nitrosative stress.
Collapse
Affiliation(s)
- Eman Soliman
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt.
| | - Samar M Shewaikh
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| | - Ahmed Fahmy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| | - Shimaa Elshazly
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| |
Collapse
|
7
|
Antioxidants as Renoprotective Agents for Ischemia during Partial Nephrectomy. BIOMED RESEARCH INTERNATIONAL 2019; 2019:8575398. [PMID: 30882000 PMCID: PMC6383545 DOI: 10.1155/2019/8575398] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 10/29/2018] [Accepted: 01/22/2019] [Indexed: 12/28/2022]
Abstract
Small renal masses have been diagnosed increasingly in recent decades, allowing surgical treatment by partial nephrectomy. This treatment option is associated with better renal function preservation, in comparison with radical nephrectomy. However, for obtaining a bloodless field during surgery, occlusion of renal artery and veins is often required, which results in transitory ischemia. The renal ischemia-reperfusion injury is associated with increased reactive oxygen species production leading to renal tissue damage. Thus, the use of antioxidants has been advocated in the partial nephrectomy perioperative period. Several antioxidants were investigated in regard to renal ischemia-reperfusion injury. The present manuscript aims to present the literature on the most commonly studied antioxidants used during partial nephrectomy. The results of experimental and clinical studies using antioxidants during partial nephrectomy are reported. Further, alimentary sources of some antioxidants are presented, stimulating future studies focusing on perioperative antioxidant-rich diets.
Collapse
|
8
|
Zhang Z, Payne K, Pallone TL. Adaptive responses of rat descending vasa recta to ischemia. Am J Physiol Renal Physiol 2018; 314:F373-F380. [PMID: 28814437 DOI: 10.1152/ajprenal.00062.2017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
tested whether rat descending vasa recta (DVR) undergo regulatory adaptations after the kidney is exposed to ischemia. Left kidneys (LK) were subjected to 30-min renal artery cross clamp. After 48 h, the postischemic LK and contralateral right kidney (RK) were harvested for study. When compared with DVR isolated from either sham-operated LK or the contralateral RK, postischemic LK DVR markedly increased their NO generation. The selective inducible NOS (iNOS) inhibitor 1400W blocked the NO response. Immunoblots from outer medullary homogenates showed a parallel 2.6-fold increase in iNOS expression ( P = 0.01). Microperfused postischemic LK DVR exposed to angiotensin II (ANG II, 10 nM), constricted less than those from the contralateral RK, and constricted more when exposed to 1400W (10 µM). Resting membrane potentials of pericytes from postischemic LK DVR pericytes were hyperpolarized relative to contralateral RK pericytes (62.0 ± 1.6 vs. 51.8 ± 2.2 mV, respectively, P < 0.05) or those from sham-operated LK (54.9 ± 2.1 mV, P < 0.05). Blockade of NO generation with 1400W did not repolarize postischemic pericytes (62.5 ± 1.4 vs. 61.1 ± 3.4 mV); however, control pericytes were hyperpolarized by exposure to NO donation from S-nitroso- N-acetyl- dl-penicillamine (51.5 ± 2.9 to 62.1 ± 1.4 mV, P < 0.05). We conclude that postischemic adaptations intrinsic to the DVR wall occur after ischemia. A rise in 1400W sensitive NO generation and iNOS expression occurs that is associated with diminished contractile responses to ANG II. Pericyte hyperpolarization occurs that is not explained by the rise in ambient NO generation within the DVR wall.
Collapse
Affiliation(s)
- Zhong Zhang
- Division of Nephrology, Department of Medicine, University of Maryland School of Medicine , Baltimore, Maryland
| | - Kristie Payne
- Division of Nephrology, Department of Medicine, University of Maryland School of Medicine , Baltimore, Maryland
| | - Thomas L Pallone
- Division of Nephrology, Department of Medicine, University of Maryland School of Medicine , Baltimore, Maryland.,Baltimore Veterans Administration Medical Center , Baltimore, Maryland
| |
Collapse
|
9
|
Choi EK, Jung H, Kwak KH, Yi SJ, Lim JA, Park SH, Park JM, Kim S, Jee DL, Lim DG. Inhibition of Oxidative Stress in Renal Ischemia-Reperfusion Injury. Anesth Analg 2017; 124:204-213. [PMID: 27607480 DOI: 10.1213/ane.0000000000001565] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
BACKGROUND Superoxide, nitric oxide (NO), and peroxynitrite are important mediators in the pathogenesis of ischemia-reperfusion (I/R) injury. We tested the renoprotective effects of allopurinol (ALP), a xanthine oxidase inhibitor, N-nitro-L-arginine methyl ester (L-NAME), and 5,10,15,20-tetrakis (N-methyl-4-pyridyl) porphyrinato iron (III) (FeTMPyP) by selective inhibition of superoxide, NO, and peroxynitrite, respectively. METHODS Male Sprague-Dawley rats were randomly assigned to 5 groups (n = 6 per group). Group 1 was a sham-operated group. Group 2 was the renal I/R group (30-minute ischemia followed by 24-hour reperfusion). Rats in groups 3, 4, and 5 received ALP, L-NAME, or FeTMPyP, respectively, at 5 minutes before the reperfusion. Serum creatinine (Cr), blood urea nitrogen (BUN), renal tissue malondialdehyde, superoxide dismutase, histological changes, apoptosis, and monocyte infiltration were evaluated. In addition, the combined treatment with ALP and L-NAME was compared with FeTMPyP in a second independent experiment. RESULTS The administration of ALP, L-NAME, and FeTMPyP diminished the increase in Cr (P = .0066 for all) and BUN (P = .0066 for ALP; and P = .013 for L-NAME) induced by I/R injury and decreased the histological damage (P = .0066 for all). In addition, ALP, L-NAME, and FeTMPyP attenuated the oxidative stress response as determined by a decrease in malondialdehyde level (P = .0066 for all), apoptotic renal tubular cells (P = .0066 for all), and monocyte infiltration (P = .0066 for all). The combined treatment of ALP and L-NAME decreased Cr and BUN levels to a greater degree than FeTMPyP (P = .016 for Cr; P = .0079 for BUN). CONCLUSIONS Superoxide, NO, and peroxynitrite are involved in renal I/R injury. The reduction of peroxynitrite formation, via inhibition of superoxide or NO, or the induction of peroxynitrite decomposition may be beneficial in renal I/R injury.
Collapse
Affiliation(s)
- Eun Kyung Choi
- From the *Department of Anesthesiology and Pain Medicine, School of Medicine, Kyungpook National University, Daegu, Korea; and †Department of Anesthesiology and Pain Medicine, Yeungnam University College of Medicine, Daegu, Korea
| | | | | | | | | | | | | | | | | | | |
Collapse
|
10
|
Gallego-Villar L, Hannibal L, Häberle J, Thöny B, Ben-Omran T, Nasrallah GK, Dewik AN, Kruger WD, Blom HJ. Cysteamine revisited: repair of arginine to cysteine mutations. J Inherit Metab Dis 2017; 40:555-567. [PMID: 28643139 PMCID: PMC5740875 DOI: 10.1007/s10545-017-0060-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 05/22/2017] [Accepted: 05/30/2017] [Indexed: 12/22/2022]
Abstract
Cysteamine is a small aminothiol endogenously derived from coenzyme A degradation. For some decades, synthetic cysteamine has been employed for the treatment of cystinosis, and new uses of the drug continue to emerge. In this review, we discuss the role of cysteamine in cellular and extracellular homeostasis and focus on the potential use of aminothiols to reconstitute the function of proteins harboring arginine (Arg) to cysteine (Cys) mutations, via repair of the Cys residue into a moiety that introduces an amino group, as seen in basic amino acid residues Lys and Arg. Cysteamine has been utilized in vitro and ex vivo in four different genetic disorders, and thus provides "proof of principle" that aminothiols can modify Cys residues. Other aminothiols such as mercaptoethylguanidine (MEG) with closer structural resemblance to the guanidinium moiety of Arg are under examination for their predicted enhanced capacity to reconstitute loss of function. Although the use of aminothiols holds clinical potential, more studies are required to refine specificity and treatment design. The efficacy of aminothiols to target proteins may vary substantially depending on their specific extracellular and intracellular locations. Redox potential, pH, and specific aminothiol abundance in each physiological compartment are expected to influence the reactivity and turnover of cysteamine and analogous drugs. Upcoming research will require the use of suitable cell and animal models featuring Arg to Cys mutations. Since, in general, Arg to Cys changes comprise about 8% of missense mutations, repair of this specific mutation may provide promising avenues for many genetic diseases.
Collapse
Affiliation(s)
- L Gallego-Villar
- Laboratory of Clinical Biochemistry and Metabolism, Department of General Pediatrics, Adolescent Medicine and Neonatology, University Medical Centre Freiburg, Mathildenstrasse 1, 79106, Freiburg, Germany
| | - Luciana Hannibal
- Laboratory of Clinical Biochemistry and Metabolism, Department of General Pediatrics, Adolescent Medicine and Neonatology, University Medical Centre Freiburg, Mathildenstrasse 1, 79106, Freiburg, Germany
| | - J Häberle
- University Children's Hospital and Children's Research Center, Zurich, Switzerland
| | - B Thöny
- University Children's Hospital and Children's Research Center, Zurich, Switzerland
| | - T Ben-Omran
- Clinical and Metabolic Genetics, Department of Pediatrics, Hamad Medical Corporation, Doha, Qatar
| | - G K Nasrallah
- Department of Biomedical Sciences, College of Health Sciences, Qatar University, Doha, Qatar
- Biomedical Research Center, Qatar University, Doha, Qatar
| | - Al-N Dewik
- Clinical and Metabolic Genetics, Department of Pediatrics, Hamad Medical Corporation, Doha, Qatar
| | - W D Kruger
- Cancer Biology Program, Fox Chase Cancer Center, Philadelphia, PA, USA
| | - H J Blom
- Laboratory of Clinical Biochemistry and Metabolism, Department of General Pediatrics, Adolescent Medicine and Neonatology, University Medical Centre Freiburg, Mathildenstrasse 1, 79106, Freiburg, Germany.
| |
Collapse
|
11
|
Ali SI, Alhusseini NF, Atteia HH, Idris RAES, Hasan RA. Renoprotective effect of a combination of garlic and telmisartan against ischemia/reperfusion-induced kidney injury in obese rats. Free Radic Res 2016; 50:966-86. [PMID: 27405440 DOI: 10.1080/10715762.2016.1211644] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Obesity enhances the frequency and severity of acute kidney injury (AKI). Telmisartan pre-treatment was used experimentally in the amelioration of ischemia/reperfusion (IR)-induced AKI. However, there is a lack of evidence regarding its beneficial effects on AKI in obese animals. The present study, therefore, aimed to explore the protective effects of garlic and/or telmisartan against renal damage induced by unilateral IR in obese rats. Meloxicam was used as a standard anti-inflammatory agent. Prophylactic oral administration of meloxicam (3 mg kg(-1)), garlic (500 mg kg(-1)) and/or telmisartan (5 and 10 mg kg(-1)) for 4 wk protected against renal function deterioration induced by IR in obese rats. Both doses of telmisartan significantly reduced serum total cholesterol and triacyglycerol levels as well as peri-renal adipocytes size and renal fibrosis. Renal nuclear factor-kappa B immunoreactivity, tumor necrosis factor-alpha content as well as interleukin-10, adiponectin receptor 1 and macrophages (M1, M2) polarization markers (CD11c, CD206) mRNA expressions were down-regulated in ischemic kidney tissues and white adipose tissues around them by all treatments. Moreover, garlic, telmisartan and their combinations significantly suppressed oxidative stress in renal ischemic tissues. Histological picture was also improved by these treatments. Interestingly, the combinations provided a greater protection than their monotherapy in a dose-dependent manner. We suppose that this combination may be a promising prophylactic regimen for managing AKI in case of obesity. Thus, future experimental and clinical large-scale studies are necessary.
Collapse
Affiliation(s)
- Sousou Ibrahim Ali
- a Department of Biochemistry, Faculty of Pharmacy , Zagazig University , Zagazig , Sharkia Governorate , Egypt
| | | | - Hebatallah Husseini Atteia
- a Department of Biochemistry, Faculty of Pharmacy , Zagazig University , Zagazig , Sharkia Governorate , Egypt
| | - Reham Abd El-Satar Idris
- a Department of Biochemistry, Faculty of Pharmacy , Zagazig University , Zagazig , Sharkia Governorate , Egypt
| | - Rehab Abdallah Hasan
- c Department of Histology, Faculty of Medicine for Girls , Al-Azhar University , Cairo , Egypt
| |
Collapse
|
12
|
Kanani F, Fazelnia F, Mojarradfard M, Nematbakhsh M, Moslemi F, Eshraghi-Jazi F, Talebi A. Role of S-methylisothiourea (SMT) in renal ischemia/reperfusion injury in rats. J Renal Inj Prev 2016. [PMID: 27069965 PMCID: PMC4827383 DOI: 10.15171/jrip.2016.07] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Introduction: Excessive production of nitric oxide (NO) via inducible nitric oxide synthase (iNOS) is associated in renal ischemia reperfusion injury (IRI).
Objectives: This study was designed to investigate the role of S-methylisothiourea (SMT) as selective inhibitor iNOS in renal IRI.
Materials and Methods: Male Wistar rats were subjected to 45 minutes of bilateral renal ischemia by occlusion of renal vessels of both kidney followed by 24 hours of reperfusion. Prior to renal IRI, the rats received either vehicle (saline, group 2) or SMT (50 mg/kg, group 3), and were compared with the sham-operated animals (group 1). At the end of reperfusion period, the rats were sacrificed for kidney tissue pathology investigation.
Results: Serum creatinine (Cr), blood urea nitrogen (BUN), nitrite levels, and kidney weight significantly increased in groups 2 and 3 (P < 0.05). Kidney tissue damage scores in groups 2 and 3 were also higher than that in the sham-operated group (P < 0.05).
Conclusion: SMT not only prevent the kidney during IRI, but also promotes kidney function disturbance and severity of renal injury.
Collapse
Affiliation(s)
- Fatemeh Kanani
- Water & Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Faezeh Fazelnia
- Water & Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | | | - Mehdi Nematbakhsh
- Water & 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 & Applied Sciences Research, Isfahan, Iran
| | - Fatemeh Moslemi
- Water & Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Fatemeh Eshraghi-Jazi
- Water & Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ardeshir Talebi
- Department of Clinical Pathology, Isfahan University of Medical Sciences, Isfahan, Iran
| |
Collapse
|
13
|
Momtaz HE, Dehghan A, Karimian M. Correlation of cystatin C and creatinine based estimates of renal function in children with hydronephrosis. J Renal Inj Prev 2016; 5:25-8. [PMID: 27069964 PMCID: PMC4827382 DOI: 10.15171/jrip.2016.06] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Accepted: 02/21/2016] [Indexed: 12/27/2022] Open
Abstract
INTRODUCTION The use of a simple and accurate glomerular filtration rate (GFR) estimating method aiming minute assessment of renal function can be of great clinical importance. OBJECTIVES This study aimed to determine the association of a GFR estimating by equation that includes only cystatin C (Gentian equation) to equation that include only creatinine (Schwartz equation) among children. PATIENTS AND METHODS A total of 31 children aged from 1 day to 5 years with the final diagnosis of unilateral or bilateral hydronephrosis referred to Besat hospital in Hamadan, between March 2010 and February 2011 were consecutively enrolled. Schwartz and Gentian equations were employed to determine GFR based on plasma creatinine and cystatin C levels, respectively. RESULTS The proportion of GFR based on Schwartz equation was 70.19± 24.86 ml/min/1.73 m(2), while the level of this parameter based on Gentian method and using cystatin C was 86.97 ± 21.57 ml/min/1.73 m(2). The Pearson correlation coefficient analysis showed a strong direct association between the two levels of GFR measured by Schwartz equation based on serum creatinine level and Gentian method and using cystatin C (r = 0.594, P < 0.001). The linear association between GFR values measured with the two methods included cystatin C based GFR = 50.8+ 0.515 × Schwartz GFR. The correlation between GFR values measured by using serum creatinine and serum cystatin C measurements remained meaningful even after adjustment for patients' gender and age (r = 0.724, P < 0.001). CONCLUSION The equation developed based on cystatin C level is comparable with another equation, based on serum creatinine (Schwartz formula) to estimate GFR in children.
Collapse
Affiliation(s)
- Hossein-Emad Momtaz
- Division of pediatric nephrology, Besat Hospital, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Arash Dehghan
- Department of Pathology, Besat Hospital, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mohammad Karimian
- Department of Pathology, Besat Hospital, Hamadan University of Medical Sciences, Hamadan, Iran
| |
Collapse
|
14
|
Fujisawa A, Yamamoto Y. Edaravone, a potent free radical scavenger, reacts with peroxynitrite to produce predominantly 4-NO-edaravone. Redox Rep 2016. [PMID: 26196041 DOI: 10.1179/1351000215y.0000000025] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVES 3-Methyl-1-phenyl-2-pyrazolin-5-one (edaravone) is used in clinical treatment of acute brain infarction to rescue the penumbra, based on its ability to prevent lipid peroxidation by scavenging lipid peroxyl radicals. Here, we show that edaravone also reacts with peroxynitrite to yield 4-NO-edaravone as the major product and 4-NO2-edaravone as a minor product. RESULTS We observed little formation of 3-methyl-1-phenyl-2-pyrazolin-4,5-dione (4-oxoedaravone) and its hydrate, 2-oxo-3-(phenylhydrazono)butanoic acid, which are the major free radical-induced oxidation products of edaravone, suggesting that free radicals are not involved in the reaction with peroxynitrite. The reaction of peroxynitrite with edaravone is approximately 30-fold greater than with uric acid, a physiological peroxynitrite scavenger (reaction rate k = 1.5 × 10 (4) M(-1) s(-1) vs. 480 M(-1) s(-1)). DISCUSSION These results suggest that edaravone functions therapeutically as a scavenger of peroxynitrite as well as lipid peroxyl radicals, which is consistent with a report that edaravone treatment reduced levels of 3-nitrotyrosine in the cerebrospinal fluid of patients with amyotrophic lateral sclerosis.
Collapse
Affiliation(s)
- Akio Fujisawa
- a School of Bioscience and Biotechnology , Tokyo University of Technology , 1404-1 Katakura-cho, Hachioji 192-0982 , Japan
| | - Yorihiro Yamamoto
- a School of Bioscience and Biotechnology , Tokyo University of Technology , 1404-1 Katakura-cho, Hachioji 192-0982 , Japan
| |
Collapse
|
15
|
Small aminothiol compounds improve the function of Arg to Cys variant proteins: effect on the human cystathionine β-synthase p.R336C. Hum Mol Genet 2015; 24:7339-48. [DOI: 10.1093/hmg/ddv431] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 10/07/2015] [Indexed: 12/13/2022] Open
|
16
|
Malkoc E, Alp BF, Demirer Z, Guragac A, Dursun F, Ates F, Yildirim I, Yuksel R, Uysal B, Topal T, Kurt YG, Ozcan A, Guven A. Efficacy of poly(adenosine diphosphate-ribose) polymerase inhibition in extracorporeal shock wave-induced renal injury. Ren Fail 2014; 36:1564-9. [PMID: 25238491 DOI: 10.3109/0886022x.2014.962423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES Extracorporeal shock wave lithotripsy (ESW) induces renal damage by excessive production of free oxygen radicals. Free Oxygen radicals cause cellular injury by inducing nicks in DNA. The enzyme poly(adenosine diphosphate-ribose) polymerase (PARP) involved in the process of repair of DNA in damaged cells. However, its activation in damaged cells can lead to adenosine triphosphate depletion and death. Thus, we designed a study to evaluate the efficacy of 3-aminobenzamide (3-AB), a PARP inhibitor, against extracorporeal shock wave induced renal injury. METHODS Twenty-four Sprague-Dawley rats were divided into three groups: control, ESW, ESW + 3-AB groups. All groups except control group were subjected to ESW procedure. ESW + 3-AB group received 20 mg/kg/day 3-aminobenzamide intraperitoneally at 2 h before ESW and continued once a day for consecutive 3 days. The surviving animals were sacrificed at the 4th day and their kidneys were harvested for biochemical and histopathologic analysis. Blood samples from animals were also obtained. RESULTS Serum ALT and AST levels, serum neopterin and tissue oxidative stress parameters were increased in the ESW group and almost came to control values in the treatment group (p < 0.05, ESW vs. ESW + 3-AB). Histopathological injury score were significantly lower in treatment group than the ESW group (p < 0.05, ESW vs. ESW + 3-AB). CONCLUSION Our data showed that PARP inhibition protected renal tissue against ESW induced renal injury. These findings suggest that it would be possible to improve the outcome of ESW induced renal injury by using PARP inhibitors as a preventive therapy.
Collapse
Affiliation(s)
- Ercan Malkoc
- Department of Urology, Gulhane Military Medical Academy Haydarpasa Training Hospital , Uskudar, Istanbul , Turkey
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
17
|
Alp BF, Malkoc E, Demirer Z, Guragac A, Turker T, Altayli E, Ozcan A, Uysal B, Topal T, Akgul EO, Yildirim I, Guven A. Inhibition of inducible nitric oxide synthase prevents shock wave therapy induced renal injury. Ren Fail 2014; 36:774-80. [DOI: 10.3109/0886022x.2014.884396] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
18
|
Peerapanyasut W, Thamprasert K, Wongmekiat O. Ubiquinol supplementation protects against renal ischemia and reperfusion injury in rats. Free Radic Res 2013; 48:180-9. [PMID: 24151980 DOI: 10.3109/10715762.2013.858148] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Generation of toxic oxygen metabolites followed by oxidant- and inflammatory-mediated tissue injury plays a crucial role in the pathogenesis of ischemia and reperfusion (IR). Ubiquinol, the reduced form of coenzyme Q10, is recognized for its potent antioxidant and anti-inflammatory properties in biological membranes. The present study was established to examine the possible protective effect of ubiquinol against renal IR injury. Groups of male Wistar rats were assigned into sham, ubiquinol, IR (45-min bilateral renal ischemia followed by 24-h reperfusion), and ubiquinol+ IR (ubiquinol 300 mg/kg given orally for 7 consecutive days before IR induction). Renal morphology, function, oxidative stress, and inflammatory markers were evaluated at the end of reperfusion. IR caused renal dysfunction as shown by significant increases in blood urea nitrogen, plasma creatinine, and a decrease in creatinine clearance. Light and electron microscopic examinations exhibited severe tubular damages and abnormal mitochondrial structure. IR-induced renal injuries were associated with significant increases in malondialdehyde, nitric oxide, tumor necrosis factor-α, but decreases in antioxidant thiols and superoxide dismutase. Pretreatment with ubiquinol obviously attenuated all the changes caused by IR, whereas it had no considerable effect in the sham-operated rats. These findings indicate that supplementation of ubiquinol prior to IR incidence confers functional and morphological protection to the ischemic kidney by maintaining the redox balance and regulating the generation of inflammatory mediator. The outcomes suggest that ubiquinol may be a potential candidate to counteract organ dysfunction in conditions involving IR injury.
Collapse
Affiliation(s)
- W Peerapanyasut
- Department of Physiology, Renal Physiology Unit, Faculty of Medicine, Chiang Mai University , Chiang Mai , Thailand
| | | | | |
Collapse
|
19
|
Barrera-Chimal J, Pérez-Villalva R, Ortega JA, Uribe N, Gamba G, Cortés-González C, Bobadilla NA. Intra-renal transfection of heat shock protein 90 alpha or beta (Hsp90α or Hsp90β) protects against ischemia/reperfusion injury. Nephrol Dial Transplant 2013; 29:301-12. [PMID: 24166465 DOI: 10.1093/ndt/gft415] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND We previously reported that radicicol (Hsp90 inhibitor) induced a reduction in the renal blood flow and glomerular filtration rate, in part due to a reduction in urinary NO2/NO3 excretion, suggesting that Hsp90 regulates renal vascular tone in physiological conditions. However, there is a lack of information concerning Hsp90α or Hsp90β role on eNOS activity and their association with acute kidney injury (AKI) characterized by an inadequate NO production. This study evaluated the effects of Hsp90α or Hsp90β intra-renal transfection under ischemia/reperfusion (IR) injury. METHODS Uninephrectomized (Nx) rats were intra-renally transfected through injections with Hsp90α or Hsp90β cloned into pcDNA3.1(+) or empty vector (EV) at 48 h before inducing IR, as indicated in the following groups: (i) Nx+sham, (ii) Nx+IR, (iii) Nx+IR+EV, (iv) Nx+IR+Hsp90α and (v) Nx+IR+Hsp90β. After 24 h, physiological, histopathological, biochemical and molecular studies were performed. RESULTS IR-induced renal dysfunction, structural injury, tubular proliferation, the elevation of urinary Hsp72 and the reduction of urinary NO2/NO3 excretion. These alterations were associated with reduced eNOS-Hsp90 coupling and changes in the eNOS phosphorylation state mediated through a reduction in PKCα and increased Rho kinase expression. In contrast, intra-renal transfection of Hsp90α or Hsp90β prevented IR injury that was associated with the restoration of eNOS-Hsp90 coupling, eNOS activating phosphorylation and PKCα and Rho kinase levels. CONCLUSIONS Here we showed that eNOS-Hsp90 uncoupling plays a critical role in promoting NO reduction during IR. This effect was effectively reversed through Hsp90α or Hsp90β intra-renal transfection, suggesting their implication in regulating NO/eNOS pathway and the renal vascular tone.
Collapse
Affiliation(s)
- Jonatan Barrera-Chimal
- Molecular Physiology Unit, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | | | | | | | | | | | | |
Collapse
|
20
|
Ilhan H, Eroglu M, Inal V, Eyi YE, Arziman I, Yildirim AO, Tansel A, Uzun G, Yamanel L. Hyperbaric oxygen therapy alleviates oxidative stress and tissue injury in renal ischemia/reperfusion injury in rats. Ren Fail 2012; 34:1305-8. [PMID: 23009323 DOI: 10.3109/0886022x.2012.723776] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Hyperbaric oxygen (HBO) therapy has been shown to attenuate renal ischemia/reperfusion (I/R) injury in rats, when applied in the early reperfusion period. The aim of this study was to elucidate possible beneficial effects of HBO therapy on renal I/R injury, when applied 24 h after ischemia. Rats were randomized into three groups: (1) control group (n = 20), (2) I/R group (n = 20), and (3) I/R + HBO group (n = 20). Renal I/R injury was created by interrupting renal blood flow for 30 min with a non-traumatic vascular clamp. HBO therapy was administered 24 h after I/R injury and continued for 5 days. At the end of the study, rats were sacrificed under anesthesia, blood was drawn, and right kidneys were harvested for analysis. Renal I/R injury increased serum and tissue malondialdehyde (MDA) levels and reduced superoxide dismutase (SOD) and glutathione peroxidase (GPx) levels. HBO therapy attenuated MDA levels by increasing SOD and GPx activities. HBO therapy also prevented neutrophil infiltration and tissue injury in kidneys. Taken together, HBO therapy has been found to be effective in the delayed period of I/R injury.
Collapse
Affiliation(s)
- Haluk Ilhan
- Department of Emergency Medicine, Gulhane Military Medical Academy, Ankara, Turkey
| | | | | | | | | | | | | | | | | |
Collapse
|
21
|
Ahmed LA, Salem HA, Mawsouf MN, Attia AS, Agha AM. Cardioprotective effects of ozone oxidative preconditioning in an in vivo model of ischemia/reperfusion injury in rats. Scandinavian Journal of Clinical and Laboratory Investigation 2012; 72:345-54. [PMID: 22862559 DOI: 10.3109/00365513.2012.663100] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Several studies have demonstrated the beneficial effects of ozone oxidative preconditioning in several pathologies characterized by cellular oxidative and inflammatory burden. The present study was designed to investigate the cardioprotective effects of oxidative preconditioning in ischemia/reperfusion (I/R) injury. METHODS Rats were randomly assigned into five groups. Groups 1 and 2 were normal and I/R groups, respectively. Two of the other groups received two different doses of ozone therapies by rectal insufflations. The last group received vehicle (oxygen). Rats were subjected to myocardial I/R (40 min/10 min). Heart rate and ventricular arrhythmias were recorded during I/R progress. At the end of reperfusion, plasma creatine kinase-MB (CK-MB) activity and total nitrate/nitrite (NO(x)) were determined. In addition, lactate, adenine nucleotides, thiobarbituric acid reactive substances (TBARS), reduced glutathione (GSH) and myeloperoxidase (MPO) activity were estimated in the heart left ventricle. Histological examination was also performed to visualize the protective cellular effects. RESULTS Both doses of ozone therapy were equally protective in reducing CK-MB release. However, the higher dose was more effective in reducing oxidative stress, lactate accumulation, elevated MPO activity and plasma NO(x) as well as preserving myocardial adenine nucleotides. Histological examination also revealed better improvement with a higher dose of ozone therapy compared to the I/R group. CONCLUSION Ozone therapy can afford significant cardioprotection against biochemical and histological changes associated with I/R injury.
Collapse
Affiliation(s)
- Lamiaa A Ahmed
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt.
| | | | | | | | | |
Collapse
|
22
|
Fouad AA, Al-Mulhim AS, Jresat I. Cannabidiol treatment ameliorates ischemia/reperfusion renal injury in rats. Life Sci 2012; 91:284-92. [PMID: 22877651 DOI: 10.1016/j.lfs.2012.07.030] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2012] [Revised: 07/06/2012] [Accepted: 07/16/2012] [Indexed: 12/11/2022]
Abstract
AIMS To investigate the protective effect of cannabidiol, the major non-psychotropic Cannabis constituent, against renal ischemia/reperfusion injury in rats. MAIN METHODS Bilateral renal ischemia was induced for 30 min followed by reperfusion for 24h. Cannabidiol (5mg/kg, i.v.) was given 1h before and 12h following the procedure. KEY FINDINGS Ischemia/reperfusion caused significant elevations of serum creatinine and renal malondialdehyde and nitric oxide levels, associated with a significant decrease in renal reduced glutathione. Cannabidiol significantly attenuated the deterioration in the measured biochemical parameters induced by ischemia/reperfusion. Histopathological examination showed that cannabidiol ameliorated ischemia/reperfusion-induced kidney damage. Immunohistochemical analysis revealed that cannabidiol significantly reduced the expression of inducible nitric oxide synthase, tumor necrosis factor-α, cyclooxygenase-2, nuclear factor-κB, Fas ligand and caspase-3, and increased the expression of survivin in ischemic/reperfused kidney tissue. SIGNIFICANCE Cannabidiol, via its antioxidant and anti-inflammatory properties, may represent a potential therapeutic option to protect against ischemia/reperfusion renal injury.
Collapse
Affiliation(s)
- Amr A Fouad
- Department of Biomedical Sciences, Pharmacology Division, College of Medicine, King Faisal University, Al-Ahsa, Saudi Arabia.
| | | | | |
Collapse
|
23
|
Oztosun M, Akgul EO, Cakir E, Cayci T, Uysal B, Ogur R, Ozcan A, Ozgurtas T, Guven A, Korkmaz A. The Effects of Medical Ozone Therapy on Renal Ischemia/Reperfusion Injury. Ren Fail 2012; 34:921-5. [DOI: 10.3109/0886022x.2012.692752] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
24
|
Nabavi SM, Nabavi SF, Habtemariam S, Moghaddam AH, Latifi AM. Ameliorative effects of quercetin on sodium fluoride-induced oxidative stress in rat's kidney. Ren Fail 2012; 34:901-6. [PMID: 22680615 DOI: 10.3109/0886022x.2012.687347] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE The in vivo nephroprotective effect of quercetin against sodium fluoride (NaF)-induced damage was studied. METHODS Renal injury was induced by daily administration of NaF (600 ppm) through drinking water for 1 week. The levels of reduced glutathione (GSH), lipid peroxidation as well as superoxide dismutase and catalase activity of kidney homogenates were determined. The serum markers of glomerular damage, including creatinine, serum urea, and blood urea nitrogen levels, were also assessed. RESULTS The study revealed that administration of fluoride resulted in a significant downregulation of antioxidant defenses coupled with an increased serum level of glomerular damage markers. The administration of quercetin prior to fluoride reversed the antioxidant-oxidant balance to control (fluoride-untreated) level. The level of protection obtained for the 20 mg/kg quercetin treatment was equivalent to the positive control, ascorbic acid (10 mg/kg). The therapeutic implication of antioxidants in fluoride-induced nephrotoxicity is discussed. CONCLUSIONS This study showed that NaF intoxication caused renal damage by increasing oxidative stress, and quercetin and vitamin C administration gave protection against fluoride-induced oxidative stress to some degree.
Collapse
Affiliation(s)
- Seyed Mohammad Nabavi
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran.
| | | | | | | | | |
Collapse
|
25
|
Nabavi SF, Moghaddam AH, Eslami S, Nabavi SM. Protective effects of curcumin against sodium fluoride-induced toxicity in rat kidneys. Biol Trace Elem Res 2012; 145:369-74. [PMID: 21901432 DOI: 10.1007/s12011-011-9194-7] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2011] [Accepted: 08/24/2011] [Indexed: 10/17/2022]
Abstract
In the present study, the protective effect of curcumin against sodium fluoride-induced nephrotoxicity was evaluated in rats. Renal injury was induced by daily administration of 600 ppm sodium fluoride in drinking water for 1 week. One week before the administration of fluoride, the animals selected as study group were given curcumin (10 and 20 mg/kg body weight, intraperitoneally). After 1 week, lipid peroxidation level, activities of superoxide dismutase, catalase, and level of glutathione in kidney homogenate were measured. Blood serum samples were examined for creatinine, serum urea, and blood urea nitrogen levels. Another group of rats received vitamin C (10 mg/kg) as standard antioxidant. The results show that curcumin and vitamin C treatment prior to fluoride administration normalized the levels of serum creatinine, serum urea, and blood urea nitrogen. Moreover, curcumin and vitamin C administrations prevented the antioxidant enzyme decreasing and lipid peroxidation levels imbalance. In conclusion, curcumin treatment at the doses of 10 and 20 mg/kg (intraperitoneally) showed significant nephroprotective effects.
Collapse
|
26
|
Nabavi SF, Nabavi SM, Moghaddam AH, Naqinezhad A, Bigdellou R, Mohammadzadeh S. Protective effects of Allium paradoxum against gentamicin-induced nephrotoxicity in mice. Food Funct 2012; 3:28-9. [DOI: 10.1039/c1fo10173k] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
27
|
Ahmed LA, Salem HA, Attia AS, Agha AM. Comparative study of the cardioprotective effects of local and remote preconditioning in ischemia/reperfusion injury. Life Sci 2011; 90:249-56. [PMID: 22154903 DOI: 10.1016/j.lfs.2011.11.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2011] [Revised: 09/02/2011] [Accepted: 11/14/2011] [Indexed: 11/18/2022]
Abstract
AIMS Though the cardioprotective effects of local or remote preconditioning have been estimated, it is still unclear which of them is more reliable and provides more cardioprotection. The present investigation was directed to compare, in one study, the cardioprotective effects of different cycles of local or remote preconditioning in ischemia/reperfusion (I/R)-induced electrophysiological, biochemical and histological changes in rats. MAIN METHODS Rats were randomly assigned into 10 groups. Groups 1 and 2 were normal and I/R groups, respectively. Other groups were subjected to 1, 2, 3, 4 cycles of local or remote preconditioning before myocardial I/R (40 min/10 min). Heart rate and ventricular arrhythmias were recorded during I/R progress. At the end of reperfusion, plasma creatine kinase-MB (CK-MB) activity and total nitrate/nitrite (NO(x)) were determined. In addition, lactate, adenine nucleotides, thiobarbituric acid reactive substances (TBARS), reduced glutathione (GSH) and myeloperoxidase (MPO) activity were estimated in the heart left ventricle. Histological examination was also performed to visualize the protective cellular effects of the effective cycle of local or remote preconditioning. KEY FINDINGS In general, local preconditioning was more effective than remote preconditioning in reducing ventricular arrhythmias, CK-MB release, lactate accumulation and elevated MPO activity as well as preserving adenine nucleotides. Concerning the most effective group in each therapy, 3 cycles of local preconditioning provided more cardioprotection than that of remote preconditioning in the histological examination. SIGNIFICANCE Despite being invasive, local preconditioning provided more effective cardioprotection than remote preconditioning in ameliorating the overall electrophysiological, biochemical and histological changes.
Collapse
Affiliation(s)
- Lamiaa A Ahmed
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Kasr El Aini Street, Cairo, Egypt.
| | | | | | | |
Collapse
|
28
|
Sakellariou GK, Pye D, Vasilaki A, Zibrik L, Palomero J, Kabayo T, McArdle F, Van Remmen H, Richardson A, Tidball JG, McArdle A, Jackson MJ. Role of superoxide-nitric oxide interactions in the accelerated age-related loss of muscle mass in mice lacking Cu,Zn superoxide dismutase. Aging Cell 2011; 10:749-60. [PMID: 21443684 PMCID: PMC3531889 DOI: 10.1111/j.1474-9726.2011.00709.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Mice lacking Cu,Zn superoxide dismutase (SOD1) show accelerated, age-related loss of muscle mass. Lack of SOD1 may lead to increased superoxide, reduced nitric oxide (NO), and increased peroxynitrite, each of which could initiate muscle fiber loss. Single muscle fibers from flexor digitorum brevis of wild-type (WT) and Sod1−/− mice were loaded with NO-sensitive (4-amino-5-methylamino-2′,7′-difluorofluorescein diacetate, DAF-FM) and superoxide-sensitive (dihydroethidium, DHE) probes. Gastrocnemius muscles were analyzed for SOD enzymes, nitric oxide synthases (NOS), and 3-nitrotyrosine (3-NT) content. A lack of SOD1 did not increase superoxide availability at rest because no increase in ethidium or 2-hydroxyethidium (2-HE) formation from DHE was seen in fibers from Sod1−/− mice compared with those from WT mice. Fibers from Sod1−/− mice had decreased NO availability (decreased DAF-FM fluorescence), increased 3-NT in muscle proteins indicating increased peroxynitrite formation and increased content of peroxiredoxin V (a peroxynitrite reductase), compared with WT mice. Muscle fibers from Sod1−/− mice showed substantially reduced generation of superoxide in response to contractions compared with fibers from WT mice. Inhibition of NOS did not affect DHE oxidation in fibers from WT or Sod1−/− mice at rest or during contractions, but transgenic mice overexpressing nNOS showed increased DAF-FM fluorescence and reduced DHE oxidation in resting muscle fibers. It is concluded that formation of peroxynitrite in muscle fibers is a major effect of lack of SOD1 in Sod1−/− mice and may contribute to fiber loss in this model, and that NO regulates superoxide availability and peroxynitrite formation in muscle.
Collapse
Affiliation(s)
- Giorgos K Sakellariou
- Institute of Ageing and Chronic Disease, University of LiverpoolLiverpool L693GA, UK
| | - Deborah Pye
- Institute of Ageing and Chronic Disease, University of LiverpoolLiverpool L693GA, UK
| | - Aphrodite Vasilaki
- Institute of Ageing and Chronic Disease, University of LiverpoolLiverpool L693GA, UK
| | - Lea Zibrik
- Institute of Ageing and Chronic Disease, University of LiverpoolLiverpool L693GA, UK
| | - Jesus Palomero
- Institute of Ageing and Chronic Disease, University of LiverpoolLiverpool L693GA, UK
| | - Tabitha Kabayo
- Institute of Ageing and Chronic Disease, University of LiverpoolLiverpool L693GA, UK
| | - Francis McArdle
- Institute of Ageing and Chronic Disease, University of LiverpoolLiverpool L693GA, UK
| | - Holly Van Remmen
- The Barshop Institute for Longevity and Aging Studies, University of Texas Health Center at San AntonioSan Antonio, TX 78229-3900, USA
| | - Arlan Richardson
- The Barshop Institute for Longevity and Aging Studies, University of Texas Health Center at San AntonioSan Antonio, TX 78229-3900, USA
| | - James G Tidball
- Molecular, Cellular and Integrative Physiology Program, University of California at Los AngelesLos Angeles, CA 90095-1606, USA
| | - Anne McArdle
- Institute of Ageing and Chronic Disease, University of LiverpoolLiverpool L693GA, UK
| | - Malcolm J Jackson
- Institute of Ageing and Chronic Disease, University of LiverpoolLiverpool L693GA, UK
- Correspondence Professor Malcolm J. Jackson, Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool L693GA, UK. Tel.: +44 1517064072; fax: +44 1517065802; e-mail:
| |
Collapse
|
29
|
Guven A, Uysal B, Caliskan B, Oztas E, Ozturk H, Korkmaz A. Mercaptoethylguanidine attenuates caustic esophageal injury in rats: a role for scavenging of peroxynitrite. J Pediatr Surg 2011; 46:1746-52. [PMID: 21929984 DOI: 10.1016/j.jpedsurg.2011.02.060] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2010] [Revised: 02/11/2011] [Accepted: 02/13/2011] [Indexed: 12/30/2022]
Abstract
INTRODUCTION After ingestion of caustic material, tissue damage is caused by reactive oxygen species and reactive nitrogen species such as peroxynitrite. Mercaptoethylguanidine (MEG) is a well-known scavenger of peroxynitrite. This study was designed to determine whether MEG has a beneficial effect on caustic esophageal injury. MATERIALS AND METHODS Forty-five rats were allocated into 3 groups: sham-operated, untreated, and treated groups. Caustic esophageal burn was created by instilling 15% NaOH in the distal esophagus. The rats were left untreated or treated with 10 mg/kg per day MEG intraperitoneally for 5 days. All rats were killed at 28 days. Efficacy of the treatment was assessed both histopathologically and biochemically. RESULTS Of 15 rats, 6 (40%) died in the untreated group, and only 1 (7%) rat died in the treated group. The stenosis index (SI) and the histopathologic damage score were significantly lower in the MEG treatment group than the untreated group, which showed a correlation with tissue hydroxyproline level. In the untreated group, tissue oxidative stress parameters (malondialdehyde and protein carbonyl content) were significantly higher; and antioxidant enzyme activities (superoxide dismutase and glutathione peroxidase) were significantly lower. Administration of MEG ameliorated oxidative stress parameters and antioxidant enzyme activities. Urinary nitrate and nitrite levels increased in the treated and untreated groups in the first 3 days, suggesting increased nitrosative stress; but at the fourth day, nitrate and nitrite level reached control values in the treated group. CONCLUSION Peroxynitrites play an important role in the healing process of caustic esophagitis. As a peroxynitrites scavenger, MEG potentially might be a useful adjuvant agent in the treatment of esophageal caustic burn by modulating the antioxidant defense mechanism.
Collapse
Affiliation(s)
- Ahmet Guven
- Department of Pediatric Surgery, Gulhane Military Medical Academy, 06170 Etlik, Ankara, Turkey.
| | | | | | | | | | | |
Collapse
|
30
|
Abraham P, Rabi S. Aminoguanidine, a selective nitric oxide synthase inhibitor, attenuates cyclophosphamide-induced renal damage by inhibiting protein nitration and poly(ADP-Ribose) polymerase activation. Chemotherapy 2011; 57:327-34. [PMID: 21893984 DOI: 10.1159/000330463] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2010] [Accepted: 05/30/2011] [Indexed: 01/06/2023]
Abstract
BACKGROUND Cyclophosphamide (CP) is an antineoplastic agent that is used for the treatment of many neoplastic diseases. Renal damage is one of the dose-limiting side effects of CP. Recent studies show that nitrosative stress plays an important role in CP-induced renal damage. AIM The purpose of our study was to investigate whether aminoguanidine (AG), a selective inducible nitric oxide synthase inhibitor, protects against CP-induced nitrosative stress and renal damage. METHOD Renal damage was induced in rats by administration of a single injection of CP at a dose of 150 mg/kg body weight intraperitoneally. For the AG pretreatment studies, the rats were injected intraperitoneally with AG at a dose of 200 mg/kg body weight 1 h before administration of CP. The control rats received AG or saline alone. All the rats were killed 16 h after the administration of CP or saline. Pretreatment with AG prevented CP-induced nitration of protein tyrosine and poly(ADP-ribose) polymerase (PARP) activation. RESULT Pretreatment with AG attenuated CP-induced renal damage. The present study demonstrates that AG is effective in preventing CP-induced renal damage and also that the protective effect is from its ability to inhibit nitric oxide-induced protein nitration and PARP activation. CONCLUSION The present study shows that AG can prevent CP-induced renal damage by inhibiting protein tyrosine nitration and PARP activation. Thus, a more efficient and comfortable therapy can be achieved for patients in need of CP treatment. AG appears to be a promising drug for the prevention of nephrotoxicity of CP.
Collapse
Affiliation(s)
- Premila Abraham
- Department of Biochemistry, Christian Medical College, Vellore, India. premilaabraham @ yahoo.com
| | | |
Collapse
|
31
|
Kizilgun M, Poyrazoglu Y, Oztas Y, Yaman H, Cakir E, Cayci T, Akgul OE, Kurt YG, Yaren H, Kunak ZI, Macit E, Ozkan E, Taslipinar MY, Turker T, Ozcan A. Beneficial effects of N-acetylcysteine and ebselen on renal ischemia/reperfusion injury. Ren Fail 2011; 33:512-7. [PMID: 21545313 DOI: 10.3109/0886022x.2011.574767] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
INTRODUCTION It has been demonstrated that peroxynitrite accompanies acute renal ischemia and contributes to the pathophysiology of renal damage. Therefore, we aimed to investigate the roles of N-acetylcysteine (NAC), a well-known powerful antioxidant, and ebselen (E), a scavenger of peroxynitrite, on renal injury induced by renal ischemia/reperfusion injury (IRI) of rat kidney. MATERIALS AND METHODS Forty male Sprague-Dawley rats were divided into five groups: sham, renal IRI, renal IRI+NAC, renal IRI+E, and renal IRI+NAC+E. IR injury was induced by 60 min of bilateral renal ischemia followed by 6 h of reperfusion. After reperfusion, kidneys and blood samples were obtained for histopathological and biochemical evaluations. RESULTS Renal IR resulted in increased malondialdehyde and nitrite/nitrate levels suggesting increased lipid peroxidation and peroxynitrite production and decreased superoxide dismutase and glutathione peroxidase activities. Both NAC and E alone significantly decreased malondialdehyde and nitrite/nitrate levels and increased superoxide dismutase and glutathione peroxidase activities. Additionally in the renal IRI+NAC+E group, all biochemical results were quite close to those of sham group. Histopathologically, the kidney injury in rats treated with combination of NAC and E was found significantly less than the other groups. CONCLUSIONS Both NAC and E are able to ameliorate IRI of the kidney by decreasing oxidative and nitrosative stresses and increasing free radical scavenger properties. Additionally, combination of NAC and E prevents kidney damage more than when each drug is used alone, suggesting that scavenging peroxynitrite nearby antioxidant activity is important in preventing renal IRI.
Collapse
Affiliation(s)
- Murat Kizilgun
- Department of Biochemistry, Diskapi Children's Health and Diseases, Hematology, Oncology Training and Research Hospital , Ankara , Turkey
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Pharmacological preconditioning with nicorandil and pioglitazone attenuates myocardial ischemia/reperfusion injury in rats. Eur J Pharmacol 2011; 663:51-8. [PMID: 21549700 DOI: 10.1016/j.ejphar.2011.04.038] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2010] [Revised: 02/22/2011] [Accepted: 04/14/2011] [Indexed: 12/18/2022]
Abstract
The present investigation was designed to study the cardioprotective effects of nicorandil and pioglitazone preconditioning in myocardial ischemia/reperfusion-induced hemodynamic, biochemical and histological changes in rats. Oral doses of nicorandil (3 or 6 mg/kg) and pioglitazone (10 or 20mg/kg) were administered once daily for 5 consecutive days. Rats were then subjected to myocardial ischemia/reperfusion (40 min/10 min). Heart rate and ventricular arrhythmias were recorded during ischemia/reperfusion progress. At the end of reperfusion, plasma creatine kinase-MB activity and total nitrate/nitrite were determined. In addition, lactate, adenine nucleotides, thiobarbituric acid reactive substances, reduced glutathione and myeloperoxidase activity were estimated in the heart left ventricle. Finally, histological examination was performed to visualize the protective cellular effects of different pretreatments. Nicorandil (3 or 6 mg/kg) was effective in attenuating the ischemia/reperfusion-induced ventricular arrhythmias, creatine kinase-MB release, lactate accumulation and oxidative stress. Nicorandil (3 mg/kg) was more effective in improving the energy production and lowering the elevated myeloperoxidase activity. Both doses of pioglitazone (10 or 20 mg/kg) were equally effective in reducing lactate accumulation and completely counteracting the oxidative stress. Pioglitazone (10 mg/kg) was more effective in improving energy production and reducing ventricular arrhythmias, plasma creatine kinase-MB release and total nitrate/nitrite. It seems that selective mitochondrial K(ATP) channel opening by lower doses of nicorandil and pioglitazone in the present study provided more cardioprotection against ventricular arrhythmias and biochemical changes induced by ischemia/reperfusion. Histological examination revealed also better improvement by the lower dose of nicorandil than that of pioglitazone.
Collapse
|
33
|
Bhalodia Y, Sheth N, Vaghasiya J, Jivani N. Role of fenofibrate alone and in combination with telmisartan on renal ischemia/reperfusion injury. Ren Fail 2010; 32:1088-94. [DOI: 10.3109/0886022x.2010.504911] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
34
|
Ersoz N, Guven A, Cayci T, Uysal B, Turk E, Oztas E, Akgul EO, Korkmaz A, Cetiner S. Comparison of the efficacy of melatonin and 1400W on renal ischemia/reperfusion injury: a role for inhibiting iNOS. Ren Fail 2010; 31:704-10. [PMID: 19814638 DOI: 10.3109/08860220903085989] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
INTRODUCTION We investigated the roles of melatonin (a powerful antioxidant, iNOS inhibitor, and a scavenger of peroxynitrite) and 1400W (a strong and selective inhibitor of inducible nitric oxide) on renal dysfunction and injury induced by ischemia/reperfusion (I/R) of rat kidney, since oxidative and nitrosative injury are believed to be the major causes. MATERIALS AND METHODS Thirty-two male Sprague-Dawley rats were divided into four groups of sham-operated, I/R, I/R + Melatonin and I/R + 1400W. Rats were given either melatonin (10 mg/kg) or 1400W (10 mg/kg) in the I/R + Melatonin and I/R + 1400W groups respectively at 6 h prior to ischemia and at the beginning of reperfusion via intraperitoneal route. I/R injury was induced by 60 min of bilateral renal ischemia followed by 6 h of reperfusion. After reperfusion, kidneys and blood were obtained for histopathologic and biochemical evaluation. RESULTS Melatonin and 1400W had an ameliorative effect on both oxidative and nitrosative stress in the kidneys against renal I/R injury in rats. In addition, melatonin significantly reduced elevated nitro-oxidative stress product, restored decreased antioxidant enzymes and attenuated histological alterations when compared with 1400W. CONCLUSIONS Both Melatonin and 1400W were efficient in ameliorating experimental I/R injury of the kidneys. Moreover, melatonin was more effective than 1400W possibly through inhibiting iNOS as well as scavenging free oxygen radicals and peroxynitrite.
Collapse
Affiliation(s)
- Nail Ersoz
- Gulhane Military Medical Academy, Department of Surgery, 06018 Etlik, Ankara, Turkey
| | | | | | | | | | | | | | | | | |
Collapse
|
35
|
Tunc T, Demirin H, Karaoglu A, Kesik V, Temiz A, Ozler M, Sadir S, Atabek C, Kul M, Oztas E, Korkmaz A. Evaluation of effects of s-methyl isothiourea and melatonin on intestinal ischemia/reperfusion injury in rats. Fetal Pediatr Pathol 2010; 29:212-23. [PMID: 20594145 DOI: 10.3109/15513811003786319] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The present study was designed to evaluate whether the administration of s-methylisothiourea and melatonin has protective potential in intestinal ischemia/reperfusion injury. Forty male Sprague-Dawley rats were divided into five groups. Ileal specimens were obtained to determine the levels of malondialdehyde, protein carbonyl content, levels of antioxidant enzymes and evaluation of histologic changes. Combination of s-methylisothiourea and melatonin, led to a statistically significant increase in activities of antioxidant enzymes with a decrease in malondialdehyde and protein carbonyl content and intestinal mucosal injury scores. It was shown; combination of SMT and melatonin may exert more promised results.
Collapse
Affiliation(s)
- Turan Tunc
- Department of Pediatrics, School of Medicine, Gulhane Military Medical Academy, Ankara, Turkey.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
36
|
Melatonin and 1400 W Ameliorate both Intestinal and Remote Organ Injury Following Mesenteric Ischemia/Reperfusion. J Surg Res 2009; 157:e97-e105. [DOI: 10.1016/j.jss.2008.12.024] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2008] [Revised: 12/11/2008] [Accepted: 12/17/2008] [Indexed: 11/24/2022]
|
37
|
Guven A, Gundogdu G, Vurucu S, Uysal B, Oztas E, Ozturk H, Korkmaz A. Medical ozone therapy reduces oxidative stress and intestinal damage in an experimental model of necrotizing enterocolitis in neonatal rats. J Pediatr Surg 2009; 44:1730-5. [PMID: 19735816 DOI: 10.1016/j.jpedsurg.2009.01.007] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2008] [Revised: 11/21/2008] [Accepted: 01/08/2009] [Indexed: 11/25/2022]
Abstract
PURPOSE Necrotizing enterocolitis (NEC) remains a major cause of morbidity and death in neonates. Evidence suggests that an imbalance between activated proinflammatory response with inadequate antiinflammatory protection results in NEC. Ozone has been proposed as an antioxidant enzyme activator, immunomodulator, and cellular metabolic activator. Therefore, this study was designed to investigate whether medical ozone therapy is effective on neonatal rat model of NEC. MATERIALS AND METHODS Thirty-eight newborn Sprague-Dawley pups were randomly divided into 3 groups of NEC, NEC + ozone, and control (left to breast feed). Necrotizing enterocolitis was induced by enteral formula feeding and exposure to 100% carbon dioxide inhalation for 10 minutes after +4 degrees C cold exposures for 5 minutes and 97% oxygen for 5 minutes 2 times daily. The NEC + ozone group received 0.7 mg/kg per day ozone/oxygen mixture intraperitoneally for a total of 3 days after first day of NEC procedure. The pups were killed at fourth day, and their intestinal tissues were harvested for biochemical and histopathologic analysis. Blood sample from pups were also obtained. RESULTS The mortality rate and the weight loss were significantly higher in NEC group than control and treatment groups. Oxidative stress markers (malondialdehyde and protein carbonyl content) significantly increased and antioxidant enzyme activities (superoxide dismutase and glutathione peroxidase) were significantly decreased in NEC group. All these biochemical changes were ameliorated in NEC + ozone group. Nitrate plus nitrite levels and serum tumor necrosis factor alpha were elevated in NEC group and reduced in treatment group. In addition, histopathologic injury score of NEC group was significantly higher than NEC + ozone group. CONCLUSION Ozone treatment significantly reduced the severity of NEC by modulating antioxidative defense and antiinflammatory protection in our experimental animal model.
Collapse
Affiliation(s)
- Ahmet Guven
- Department of Pediatric Surgery, Gulhane Military Medical Academy, Etlik, Ankara, Turkey.
| | | | | | | | | | | | | |
Collapse
|
38
|
Oztas E, Guven A, Turk E, Uysal B, Akgul EO, Cayci T, Ersoz N, Korkmaz A. 3-Aminobenzamide, a Poly ADP Ribose Polymerase Inhibitor, Attenuates Renal Ischemia/Reperfusion Injury. Ren Fail 2009; 31:393-9. [DOI: 10.1080/08860220902882741] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
|
39
|
Yanarates O, Guven A, Sizlan A, Uysal B, Akgul O, Atim A, Ozcan A, Korkmaz A, Kurt E. Ameliorative effects of proanthocyanidin on renal ischemia/reperfusion injury. Ren Fail 2009; 30:931-8. [PMID: 18925534 DOI: 10.1080/08860220802359410] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
INTRODUCTION Several natural products have been reported to have beneficial effects on ischemia/reperfusion (I/R) injury, particularly from a preventative perspective. Therefore, this study was designed to investigate the efficiency of proanthocyanidin (PA), a natural product derived from grape seed, on renal dysfunction and injury induced by I/R of rat kidney. MATERIALS AND METHODS Twenty-four male Sprague-Dawley rats were divided into three groups: sham-operated, I/R, I/R+PA. Rats were given PA (100 mg/kg/day peroral) 7 days prior to I/R. All rats except sham-operated underwent 60 min of bilateral renal ischemia followed by 6 h of reperfusion. After reperfusion, kidneys and blood were obtained for evaluation. Superoxide dismutase, glutathione peroxidase, malondialdehyde, protein carbonyl content, and nitrite/nitrate level (NO(x)) were determined in the renal tissue. Serum creatinine (S(Cr)), blood urea nitrogen (BUN), and aspartate aminotransferase (AST) were determined in the blood. Additionally, renal sections were used for histological grade of renal injury. RESULTS PA significantly reduced the I/R-induced increases in S(Cr), BUN, and AST. In addition, PA markedly reduced elevated oxidative stress product, restored decreased antioxidant enzymes, and attenuated histological alterations. Moreover, PA attenuated the tissue NO(x), levels indicating reduced NO production. CONCLUSIONS The pretreatment of rats with PA reduced the renal dysfunction and morphological changes, ameliorated cellular injury, and restored renal antioxidant enzymes caused by renal I/R.
Collapse
Affiliation(s)
- Omer Yanarates
- Department of Anesthesiology and Reanimation, Gulhane Military Medical Academy, Ankara, Turkey
| | | | | | | | | | | | | | | | | |
Collapse
|