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Liu Y, Liu N, He P, Cao S, Li H, Liu D. Arginine-methylated c-Myc affects mitochondrial mitophagy in mouse acute kidney injury via Slc25a24. J Cell Physiol 2024; 239:193-211. [PMID: 38164038 DOI: 10.1002/jcp.31160] [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: 07/12/2023] [Revised: 11/07/2023] [Accepted: 11/10/2023] [Indexed: 01/03/2024]
Abstract
The transcription factor methylated c-Myc heterodimerizes with MAX to modulate gene expression, and plays an important role in energy metabolism in kidney injury but the exact mechanism remains unclear. Mitochondrial solute transporter Slc25a24 imports ATP into mitochondria and is central to energy metabolism. Gene Expression Omnibus data analysis reveals Slc25a24 and c-Myc are consistently upregulated in all the acute kidney injury (AKI) cells. Pearson correlation analysis also shows that Slc25a24 and c-Myc are strongly correlated (⍴ > 0.9). Mutant arginine methylated c-Myc (R299A and R346A) reduced its combination with MAX when compared with the wild type of c-Myc. On the other hand, the Slc25a24 levels were also correspondingly reduced, which induced the downregulation of ATP production. The results promoted reactive oxygen species (ROS) production and mitophagy generation. The study revealed that the c-Myc overexpression manifested the most pronounced mitochondrial DNA depletion. Additionally, the varied levels of mitochondrial proteins like TIM23, TOM20, and PINK1 in each group, particularly the elevated levels of PINK1 in AKI model groups and lower levels of TIM23 and TOM20 in the c-Myc overexpression group, suggest potential disruptions in mitochondrial dynamics and homeostasis, indicating enhanced mitophagy or mitochondrial loss. Therefore, arginine-methylated c-Myc affects mouse kidney injury by regulating mitochondrial ATP and ROS, and mitophagy via Slc25a24.
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Affiliation(s)
- Ying Liu
- Department of Nephrology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Naiquan Liu
- Department of Nephrology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Ping He
- Department of Nephrology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Shiyu Cao
- Grade 2018 Clinical Medicine, China Medical University, Shenyang, China
| | - Huabing Li
- Department of Nephrology, Tiemei General Hospital of Liaoning Province Health Industrial Group, Tieling, China
| | - Dajun Liu
- Department of Nephrology, Shengjing Hospital of China Medical University, Shenyang, China
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2
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Sůva M, Kala P, Poloczek M, Kaňovský J, Štípal R, Radvan M, Hlasensky J, Hudec M, Brázdil V, Řehořová J. Contrast-induced acute kidney injury and its contemporary prevention. Front Cardiovasc Med 2022; 9:1073072. [PMID: 36561776 PMCID: PMC9763312 DOI: 10.3389/fcvm.2022.1073072] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 11/22/2022] [Indexed: 12/12/2022] Open
Abstract
The complexity and application range of interventional and diagnostic procedures using contrast media (CM) have recently increased. This allows more patients to undergo procedures that involve CM administration. However, the intrinsic CM toxicity leads to the risk of contrast-induced acute kidney injury (CI-AKI). At present, effective therapy of CI-AKI is rather limited. Effective prevention of CI-AKI therefore becomes crucially important. This review presents an in-depth discussion of CI-AKI incidence, pathogenesis, risk prediction, current preventive strategies, and novel treatment possibilities. The review also discusses the difference between CI-AKI incidence following intraarterial and intravenous CM administration. Factors contributing to the development of CI-AKI are considered in conjunction with the mechanism of acute kidney damage. The need for ultimate risk estimation and the prediction of CI-AKI is stressed. Possibilities of CI-AKI prevention is evaluated within the spectrum of existing preventive measures aimed at reducing kidney injury. In particular, the review discusses intravenous hydration regimes and pre-treatment with statins and N-acetylcysteine. The review further focuses on emerging alternative imaging technologies, alternative intravascular diagnostic and interventional procedures, and new methods for intravenous hydration guidance; it discusses the applicability of those techniques in complex procedures and their feasibility in current practise. We put emphasis on contemporary interventional cardiology imaging methods, with a brief discussion of CI-AKI in non-vascular and non-cardiologic imaging and interventional studies.
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Affiliation(s)
- Marek Sůva
- Department of Internal Medicine and Cardiology, University Hospital, Brno, Czechia,Department of Internal Medicine and Cardiology, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Petr Kala
- Department of Internal Medicine and Cardiology, University Hospital, Brno, Czechia,Department of Internal Medicine and Cardiology, Faculty of Medicine, Masaryk University, Brno, Czechia,*Correspondence: Petr Kala,
| | - Martin Poloczek
- Department of Internal Medicine and Cardiology, University Hospital, Brno, Czechia,Department of Internal Medicine and Cardiology, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Jan Kaňovský
- Department of Internal Medicine and Cardiology, University Hospital, Brno, Czechia,Department of Internal Medicine and Cardiology, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Roman Štípal
- Department of Internal Medicine and Cardiology, University Hospital, Brno, Czechia,Department of Internal Medicine and Cardiology, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Martin Radvan
- Department of Internal Medicine and Cardiology, University Hospital, Brno, Czechia,Department of Internal Medicine and Cardiology, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Jiří Hlasensky
- Department of Internal Medicine and Cardiology, University Hospital, Brno, Czechia,Department of Internal Medicine and Cardiology, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Martin Hudec
- Department of Internal Medicine and Cardiology, University Hospital, Brno, Czechia,Department of Internal Medicine and Cardiology, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Vojtěch Brázdil
- Department of Internal Medicine and Cardiology, University Hospital, Brno, Czechia,Department of Internal Medicine and Cardiology, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Jitka Řehořová
- Department of Internal Medicine and Gastroenterology, University Hospital, Brno, Czechia
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Molecular Mechanisms of Acute Organophosphate Nephrotoxicity. Int J Mol Sci 2022; 23:ijms23168855. [PMID: 36012118 PMCID: PMC9407954 DOI: 10.3390/ijms23168855] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 08/04/2022] [Accepted: 08/05/2022] [Indexed: 11/29/2022] Open
Abstract
Organophosphates (OPs) are toxic chemicals produced by an esterification process and some other routes. They are the main components of herbicides, pesticides, and insecticides and are also widely used in the production of plastics and solvents. Acute or chronic exposure to OPs can manifest in various levels of toxicity to humans, animals, plants, and insects. OPs containing insecticides were widely used in many countries during the 20th century, and some of them continue to be used today. In particular, 36 OPs have been registered in the USA, and all of them have the potential to cause acute and sub-acute toxicity. Renal damage and impairment of kidney function after exposure to OPs, accompanied by the development of clinical manifestations of poisoning back in the early 1990s of the last century, was considered a rare manifestation of their toxicity. However, since the beginning of the 21st century, nephrotoxicity of OPs as a manifestation of delayed toxicity is the subject of greater attention of researchers. In this article, we present a modern view on the molecular pathophysiological mechanisms of acute nephrotoxicity of organophosphate compounds.
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Renoprotective Effect of Vardenafil and Avanafil in Contrast-Induced Nephropathy: Emerging Evidence from an Animal Model. J Pers Med 2022; 12:jpm12050670. [PMID: 35629096 PMCID: PMC9144719 DOI: 10.3390/jpm12050670] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 04/15/2022] [Accepted: 04/19/2022] [Indexed: 02/04/2023] Open
Abstract
The potential renoprotective effects of vardenafil (VAR) have been evaluated in a very limited number of studies using acute kidney injury animal models other than contrast-induced nephropathy (CIN) with promising results, while avanafil (AVA) has not been evaluated in this respect before. The purpose of this study was to evaluate for the first time the potential renoprotective effect of VAR and AVA in a rat model of CIN. Twenty-five male Wistar rats were equally assigned into five groups: control, CIN, CIN+N-acetyl cysteine (NAC) (100 mg/kg/day) as a positive control, CIN+VAR (10 mg/kg/day) and CIN+AVA (50 mg/kg/day). CIN was induced by dehydration, inhibition of prostaglandin and nitric oxide synthesis as well as exposure to the contrast medium (CM). Serum Cr (sCr) levels were measured at 24 and 48 h after CIN induction. At 48 h of CM exposure, animals were sacrificed. Matrix metalloproteinase (MMP) 2 (MMP-2) and MMP-9, kidney injury molecule 1 (KIM-1) and cystatin-C (Cys-C) were measured on renal tissue. Histopathological findings were evaluated on kidney tissue. All treatment groups had close to normal kidney appearance. sCr levels subsided in all treatment groups compared to CIN group at 48 h following CIN induction. A significant decline in the levels of MMP-2, MMP-9, KIM-1 and Cys-C compared to CIN group was observed. These results provide emerging evidence that VAR and AVA may have the potential to prevent CIN.
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Clusterin as a New Marker of Kidney Injury in Children Undergoing Allogeneic Hematopoietic Stem Cell Transplantation-A Pilot Study. J Clin Med 2020; 9:jcm9082599. [PMID: 32796610 PMCID: PMC7465616 DOI: 10.3390/jcm9082599] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 08/07/2020] [Accepted: 08/09/2020] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND AND AIMS The markers of renal damage defining subclinical AKI are not widely used in children undergoing allogeneic hematopoietic stem cell transplantation (alloHSCT). The aim of the study was to evaluate serum and urinary clusterin as indices of kidney injury after alloHSCT in relation to damage (kidney injury molecule (KIM)-1) and functional (cystatin C) markers. MATERIAL AND METHODS Serum and urinary clusterin, KIM-1 and cystatin C concentrations were assessed by ELISA in 27 children before alloHSCT, 24 h, 1, 2, 3 and 4 weeks after alloHSCT and in controls. RESULTS All parameters were significantly higher in HSCT patients compared to controls even before the transplantation. The serum concentrations increased after HSCT and this rising trend was kept until the third (clusterin) or 4th (KIM-1, cystatin C) week. Urinary clusterin and KIM-1 were elevated until the third week and then decreased yet remained higher than before HSCT. Urinary cystatin C has risen from the second week after HSCT and decreased after the third week but was still higher than before alloHSCT. CONCLUSIONS The features of kidney injury are present even before alloHSCT. Clusterin seems useful in the assessment of subclinical AKI and may become a new early marker of sublethal kidney injury in children.
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Georgiadis G, Zisis IE, Docea AO, Tsarouhas K, Fragkiadoulaki I, Mavridis C, Karavitakis M, Stratakis S, Stylianou K, Tsitsimpikou C, Calina D, Sofikitis N, Tsatsakis A, Mamoulakis C. Current Concepts on the Reno-Protective Effects of Phosphodiesterase 5 Inhibitors in Acute Kidney Injury: Systematic Search and Review. J Clin Med 2020; 9:jcm9051284. [PMID: 32365529 PMCID: PMC7287956 DOI: 10.3390/jcm9051284] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 04/16/2020] [Accepted: 04/24/2020] [Indexed: 12/11/2022] Open
Abstract
Acute kidney injury (AKI) is associated with increased morbidity, prolonged hospitalization, and mortality, especially in high risk patients. Phosphodiesterase 5 inhibitors (PDE5Is), currently available as first-line therapy of erectile dysfunction in humans, have shown a beneficial potential of reno-protection through various reno-protective mechanisms. The aim of this work is to provide a comprehensive overview of the available literature on the reno-protective properties of PDE5Is in the various forms of AKI. Medline was systematically searched from 1946 to November 2019 to detect all relevant animal and human studies in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) statement. In total, 83 studies were included for qualitative synthesis. Sildenafil is the most widely investigated compound (42 studies), followed by tadalafil (20 studies), icariin (10 studies), vardenafil (7 studies), zaprinast (4 studies), and udenafil (2 studies). Even though data are limited, especially in humans with inconclusive or negative results of only two clinically relevant studies available at present, the results of animal studies are promising. The reno-protective action of PDE5Is was evident in the vast majority of studies, independently of the AKI type and the agent applied. PDE5Is appear to improve the renal functional/histopathological alternations of AKI through various mechanisms, mainly by affecting regional hemodynamics, cell expression, and mitochondrial response to oxidative stress and inflammation.
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Affiliation(s)
- Georgios Georgiadis
- Department of Urology, University General Hospital of Heraklion, University of Crete, Medical School, Heraklion, Crete, Greece; (G.G.); (I.-E.Z.); (I.F.); (C.M.); (M.K.)
| | - Ioannis-Erineos Zisis
- Department of Urology, University General Hospital of Heraklion, University of Crete, Medical School, Heraklion, Crete, Greece; (G.G.); (I.-E.Z.); (I.F.); (C.M.); (M.K.)
- Department of Forensic Sciences and Toxicology, Faculty of Medicine, University of Crete, Heraklion, Crete 71003, Greece;
| | - Anca Oana Docea
- Department of Toxicology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania;
| | | | - Irene Fragkiadoulaki
- Department of Urology, University General Hospital of Heraklion, University of Crete, Medical School, Heraklion, Crete, Greece; (G.G.); (I.-E.Z.); (I.F.); (C.M.); (M.K.)
- Department of Forensic Sciences and Toxicology, Faculty of Medicine, University of Crete, Heraklion, Crete 71003, Greece;
| | - Charalampos Mavridis
- Department of Urology, University General Hospital of Heraklion, University of Crete, Medical School, Heraklion, Crete, Greece; (G.G.); (I.-E.Z.); (I.F.); (C.M.); (M.K.)
| | - Markos Karavitakis
- Department of Urology, University General Hospital of Heraklion, University of Crete, Medical School, Heraklion, Crete, Greece; (G.G.); (I.-E.Z.); (I.F.); (C.M.); (M.K.)
| | - Stavros Stratakis
- Department of Nephrology, University General Hospital of Heraklion, University of Crete, Medical School, Heraklion, Crete, Greece; (S.S.); (K.S.)
| | - Kostas Stylianou
- Department of Nephrology, University General Hospital of Heraklion, University of Crete, Medical School, Heraklion, Crete, Greece; (S.S.); (K.S.)
| | - Christina Tsitsimpikou
- Department of Hazardous Substances, Mixtures and Articles, General Chemical State Laboratory of Greece, Ampelokipi, Athens, Greece;
| | - Daniela Calina
- Department of Clinical Pharmacy, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania;
| | - Nikolaos Sofikitis
- Department of Urology, School of Medicine, Ioannina University, Ioannina, Greece;
| | - Aristidis Tsatsakis
- Department of Forensic Sciences and Toxicology, Faculty of Medicine, University of Crete, Heraklion, Crete 71003, Greece;
| | - Charalampos Mamoulakis
- Department of Urology, University General Hospital of Heraklion, University of Crete, Medical School, Heraklion, Crete, Greece; (G.G.); (I.-E.Z.); (I.F.); (C.M.); (M.K.)
- Correspondence:
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7
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Morcos R, Kucharik M, Bansal P, Al Taii H, Manam R, Casale J, Khalili H, Maini B. Contrast-Induced Acute Kidney Injury: Review and Practical Update. CLINICAL MEDICINE INSIGHTS-CARDIOLOGY 2019; 13:1179546819878680. [PMID: 31700251 PMCID: PMC6826945 DOI: 10.1177/1179546819878680] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Accepted: 08/20/2019] [Indexed: 12/21/2022]
Abstract
Contrast-induced acute kidney injury (CI-AKI) is an important consideration in patients undergoing cardiac catheterization. There has been a continuous strive to decrease morbidity and improve procedural safety. This review will address the pathophysiology, predictors, and clinical management of CI-AKI with a concise overview of the pathophysiology and a suggested association with left atrial appendage closure. Minimizing contrast administration and intravenous fluid hydration are the cornerstones of an effective preventive strategy. A few adjunctive pharmacotherapies hold promise, but there are no consensus recommendations on prophylactic therapies.
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Affiliation(s)
- Ramez Morcos
- Department of Internal Medicine, Florida Atlantic University, Boca Raton, FL, USA
| | - Michael Kucharik
- Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, USA
| | - Pirya Bansal
- Department of Cardiovascular Diseases, Florida Atlantic University, Boca Raton, FL, USA
| | - Haider Al Taii
- Department of Cardiovascular Diseases, Florida Atlantic University, Boca Raton, FL, USA
| | - Rupesh Manam
- Department of Internal Medicine, Florida Atlantic University, Boca Raton, FL, USA
| | - Joel Casale
- Department of Internal Medicine, Florida Atlantic University, Boca Raton, FL, USA
| | - Houman Khalili
- Department of Cardiovascular Diseases, Florida Atlantic University, Boca Raton, FL, USA.,Tenet Healthcare Corporation, Boca Raton, FL, USA
| | - Brijeshwar Maini
- Department of Cardiovascular Diseases, Florida Atlantic University, Boca Raton, FL, USA.,Tenet Healthcare Corporation, Boca Raton, FL, USA
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8
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Mamoulakis C, Fragkiadoulaki I, Karkala P, Georgiadis G, Zisis IE, Stivaktakis P, Kalogeraki A, Tsiaoussis I, Burykina T, Lazopoulos G, Tsarouhas K, Kouretas D, Tsatsakis A. Contrast-induced nephropathy in an animal model: Evaluation of novel biomarkers in blood and tissue samples. Toxicol Rep 2019; 6:395-400. [PMID: 31080747 PMCID: PMC6506864 DOI: 10.1016/j.toxrep.2019.04.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 04/19/2019] [Accepted: 04/28/2019] [Indexed: 12/26/2022] Open
Abstract
Identification of novel biomarkers of contrast-induced nephropathy (CIN) that may more accurately detect renal function changes; reflect kidney damage; assist monitoring; and elucidate pathophysiology attract considerable scientific attention nowadays. To evaluate novel biomarkers of nephrotoxicity in blood/tissue samples of a CIN model, 10 New Zealand white rabbits were divided into group 1 (n = 5; iopromide) and group 2 (n = 5; control). Blood was drawn at 0 h (immediately), 24 h and 48 h after contrast medium (CM) administration. Animals were euthanized at 48 h and kidneys were removed. Serum creatinine (sCr)/symmetric-asymmetric dimethylarginine (SDMA-ADMA) levels were measured. CM genotoxic/cytotoxic effect was investigated 48 h post-CM exposure using micronucleus assay in lymphocytes. Cytological examination was conducted using touch preparation technique (TPT). All animals in group 1 developed CIN: mean sCr levels increased by 68.2% within 48 h. Significant SDMA-ADMA level elevation was observed at 0 h and 24 h with insignificant drop at 48 h in group 1, remaining normal in group 2 at all time-points. Significant increase in bi-nucleated cells with micronuclei and micronuclei frequency was detected in group 1. Cytokinesis block proliferation index was reduced insignificantly in group 1. TPT revealed degenerative lesions/inflammation, cell degeneration, abnormal uterine tubular casts and rubella in kidneys of all animals in group 1. Group 2 presented normal cells.
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Key Words
- ADMA, asymmetric dimethylarginine
- AKI, acute kidney injury
- ANOVA, analysis of variance
- ARRIVE, animal research: reporting of in vivo experiments
- AVMA, American Veterinary Medical Association
- Animal
- Asymmetric dimethylarginine
- BNMN, Bi-nucleated cells with micronuclei
- CBPI, cytokinesis block proliferation index
- CIN, contrast-induced nephropathy
- CKD, chronic kidney disease
- CM, contrast medium
- Contrast media
- ESI, electrospray ionization
- GFR, glomerular filtration rate
- Iopromide
- KIM-1, kidney injury molecule-1
- Kidney
- LC–MS, liquid chromatography mass spectrometry
- MN, micronuclei
- Models
- NGAL, meutrophil gelatinase–associated lipocalin
- NO, nitric oxide
- Nephropathy
- Nephrotoxicity
- OECD, Organisation for Economic Co-operation and Development
- RBF, renal blood flow
- ROS, reactive oxygen species
- SCR, serum creatinine
- SD, standard deviation
- SDMA, symmetric dimethylarginine
- Symmetric dimethylarginine
- TPT, touch preparation technique
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Affiliation(s)
- Charalampos Mamoulakis
- Department of Urology, University General Hospital of Heraklion, University of Crete, Medical School, Heraklion, Crete, Greece
| | - Irene Fragkiadoulaki
- Department of Urology, University General Hospital of Heraklion, University of Crete, Medical School, Heraklion, Crete, Greece
- Department of Forensic Sciences and Toxicology, Faculty of Medicine, University of Crete, Heraklion, 71003, Greece
| | - Phaedra Karkala
- Department of Forensic Sciences and Toxicology, Faculty of Medicine, University of Crete, Heraklion, 71003, Greece
| | - Georgios Georgiadis
- Department of Urology, University General Hospital of Heraklion, University of Crete, Medical School, Heraklion, Crete, Greece
| | - Ioannis-Erineos Zisis
- Department of Urology, University General Hospital of Heraklion, University of Crete, Medical School, Heraklion, Crete, Greece
- Department of Forensic Sciences and Toxicology, Faculty of Medicine, University of Crete, Heraklion, 71003, Greece
| | - Polychronis Stivaktakis
- Department of Forensic Sciences and Toxicology, Faculty of Medicine, University of Crete, Heraklion, 71003, Greece
| | - Alexandra Kalogeraki
- Department of Pathology-Cytopathology, University General Hospital of Heraklion, University of Crete, Medical School, Heraklion, Crete, Greece
| | - Ioannis Tsiaoussis
- Laboratory of Anatomy-Histology-Embryology, University of Crete, Medical School, Heraklion, Crete, Greece
| | - Tatyana Burykina
- Department of Analytical and Forensic Medical Toxicology, Sechenov University, 2-4 Bolshaya Pirogovskaya st., 119991, Moscow, Russia
| | - George Lazopoulos
- Department of Cardiothoracic Surgery, University General Hospital of Heraklion, University of Crete, Medical School, Heraklion, Crete, Greece
| | | | - Dimitrios Kouretas
- Department of Biochemistry and Biotechnology, University of Thessaly, 41500, Larissa, Greece
| | - Aristides Tsatsakis
- Department of Forensic Sciences and Toxicology, Faculty of Medicine, University of Crete, Heraklion, 71003, Greece
- Department of Analytical and Forensic Medical Toxicology, Sechenov University, 2-4 Bolshaya Pirogovskaya st., 119991, Moscow, Russia
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9
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Wang F, Shang Y, Zhang R, Gao X, Zeng Q. A SIRT1 agonist reduces cognitive decline in type 2 diabetic rats through antioxidative and anti‑inflammatory mechanisms. Mol Med Rep 2018; 19:1040-1048. [PMID: 30483738 PMCID: PMC6323206 DOI: 10.3892/mmr.2018.9699] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Accepted: 03/02/2018] [Indexed: 12/21/2022] Open
Abstract
Sirtuin 1 (SIRT1) is an NAD+‑dependent protein deacetylase that is involved in cell differentiation, aging, apoptosis, physiological rhythms, metabolic regulation, oxidative stress and numerous other important biological processes. In the present study, the ability of a sirtuin‑1 (SIRT1) agonist, SRT1720, to reduce cognitive decline in type 2 diabetes mellitus (T2DM) was investigated. Streptozotocin‑induced male Sprague‑Dawley rats were used to establish a T2DM model and the protective effect of SRT1720 and its underlying mechanisms were investigated. Body weight and fasting blood glucose (FBG) were recorded and cognitive function was measured with the Morris water maze. Levels of oxidative stress, inflammation, caspase‑3 activity and nuclear factor κB (NF‑κB) mRNA expression were detected with a series of commercial assay kits and reverse transcription‑quantitative polymerase chain reaction, respectively. Western blot analysis was performed to determine the protein expression of NF‑κB, endothelial nitric oxide synthase (eNOS), peroxisome proliferator‑activated receptor γ (PPARγ), AMP‑activated protein kinase (AMPK), heat shock 70 kDa protein (HSP70), SIRT1, nuclear factor erythroid 2‑related factor 2 (Nrf2) and heme oxygenase 1 (HO‑1). The results revealed that SRT1720 significantly increased body weight, decreased FBG, improved cognitive function and reduced the levels of proteins associated with oxidative stress and inflammation damage in T2DM rats. Additionally, SRT1720 significantly decreased NF‑κB p65 mRNA expression and increased eNOS and PPARγ expression. SRT1720 significantly reduced caspase‑3 activity and HSP70 protein expression, and increased p‑AMPK, SIRT1, Nrf2 and HO‑1 protein expression. Collectively, the results indicate that SRT1720 may reduce cognitive decline in T2DM rats through antioxidative and anti‑inflammatory action via NF‑κB and AMPK‑dependent mechanisms.
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Affiliation(s)
- Fei Wang
- Health Management Institute, Chinese PLA General Hospital, Beijing 100853, P.R. China
| | - Yanchang Shang
- Department of Geriatric Neurology, Chinese PLA General Hospital, Beijing 100853, P.R. China
| | - Rong Zhang
- Health Management Institute, Chinese PLA General Hospital, Beijing 100853, P.R. China
| | - Xiangyang Gao
- Health Management Institute, Chinese PLA General Hospital, Beijing 100853, P.R. China
| | - Qiang Zeng
- Health Management Institute, Chinese PLA General Hospital, Beijing 100853, P.R. China
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10
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Tungjai M, Sukantamala S, Malasaem P, Dechsupa N, Kothan S. An evaluation of the antioxidant properties of iodinated radiographic contrast media: An in vitro study. Toxicol Rep 2018; 5:840-845. [PMID: 30148067 PMCID: PMC6106711 DOI: 10.1016/j.toxrep.2018.08.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 07/31/2018] [Accepted: 08/13/2018] [Indexed: 02/07/2023] Open
Abstract
This study reveals the antioxidant properties of iodinated radiographic contrast media to be used in diagnostic radiology. Di(phenyl)-(2,4,6-trinitrophenyl) iminoazanium (DPPH), ferric reducing ability of plasma (FRAP), and 2,2'-azino-bis (3-ethylbenzthiazoline-6-sulphonic acid) (ABTS) assays were used for determining in vitro the antioxidant properties of five iodinated radiographic contrast media such as iobitridol (xenetix), iodixanol (visipaque), iohexol (omnipaque), ioxaglate (hexabrix), and isovue (iopamiro). An ascorbic acid and Trolox solution served as a positive control. The absorbance intensity of the colored product was recorded using a spectrophotometer. For DPPH and ABTS assay, the absorbance intensity at 533 and 752 nm, respectively was decreased when compared to control; it indicated an increase in antioxidant activity. For FRAP assay, the absorbance intensity at 593 nm was increased when compared to control; it indicated an increase in antioxidant activity. The results showed that five iodinated radiographic contrast media did not differ in DPPH• radical-scavenging activity when compared to a corresponding control. The ferric reducing ability of all of these iodinated radiographic contrast media also did not differ when compared to a corresponding control, except for iobitridol at 200 mgI/mL and ioxaglate at 50-200 mgI/mL. All iodinated radiographic contrast media showed ABTS•+ radical-scavenging activity. This finding suggested that iobitridol, iodixanol, iohexol, ioxaglate, and isovue exhibited weak in vitro antioxidant properties. The antioxidant ability depended on the type of free radical production and the concentration of iodinated radiographic contrast media.
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Key Words
- ABTS, 2,2′-azino-bis (3-ethylbenzthiazoline-6-sulphonic acid)
- AOPP, advanced oxidation protein products
- Antioxidant property
- DPPH, di(phenyl)-(2,4,6-trinitrophenyl) iminoazanium
- FRAP, Ferric reducing ability of plasma
- Free radical
- NAC, N-acetylcystein
- Radiographic contrast media
- TPTZ, 2,4,6-tri(2-pyridyl)-s-triazine
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