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Li Y, Wang J. Contrast-induced acute kidney injury: a review of definition, pathogenesis, risk factors, prevention and treatment. BMC Nephrol 2024; 25:140. [PMID: 38649939 PMCID: PMC11034108 DOI: 10.1186/s12882-024-03570-6] [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: 01/25/2024] [Accepted: 04/02/2024] [Indexed: 04/25/2024] Open
Abstract
Contrast-induced acute kidney injury (CI-AKI) has become the third leading cause of hospital-acquired AKI, which seriously threatens the health of patients. To date, the precise pathogenesis of CI-AKI has remained not clear and may be related to the direct cytotoxicity, hypoxia and ischemia of medulla, and oxidative stress caused by iodine contrast medium, which have diverse physicochemical properties, including cytotoxicity, permeability and viscosity. The latest research shows that microRNAs (miRNAs) are also involved in apoptosis, pyroptosis, and autophagy which caused by iodine contrast medium (ICM), which may be implicated in the pathogenesis of CI-AKI. Unfortunately, effective therapy of CI-AKI is very limited at present. Therefore, effective prevention of CI-AKI is of great significance, and several preventive options, including hydration, antagonistic vasoconstriction, and antioxidant drugs, have been developed. Here, we review current knowledge about the features of iodine contrast medium, the definition, pathogenesis, molecular mechanism, risk factors, prevention and treatment of CI-AKI.
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Affiliation(s)
- Yanyan Li
- Department of Pharmacy, Chongqing Traditional Chinese Medicine Hospital, 400021, Chongqing, P.R. China
| | - Junda Wang
- Department of Radiology, Chongqing Traditional Chinese Medicine Hospital, No. 6 Panxi 7 Branch Road, 400021, Chongqing, P.R. China.
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Chen HY, Wu YH, Wei CY, Liao ZY, Wu HT, Chen YC, Pang JHS. Incomplete Recovery from the Radiocontrast-Induced Dysregulated Cell Cycle, Adhesion, and Fibrogenesis in Renal Tubular Cells after Radiocontrast (Iohexol) Removal. Int J Mol Sci 2023; 24:10945. [PMID: 37446141 DOI: 10.3390/ijms241310945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 06/28/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023] Open
Abstract
Contrast-induced nephropathy (CIN) is one of the most common causes of acute kidney injury (AKI). However, management is still limited, and the cellular response to radiocontrast removal for CIN remains unclear. This study aimed to explore the latent effects of iohexol in cultured renal tubular cells with or without the removal of iohexol by medium replacement. HK2 renal tubular cells were subcultured 24 h before use in CIN experiments. Three treatment groups were established: the control, a radiocontrast (iohexol)-only group at 75 mg I/mL (I-75), and iohexol exposure for 24 h with culture medium replacement (I-75/M). Cell cycle arrest, fibrogenic mediator assays, cell viability, cell function, and cell-cycle-related protein expression were compared between groups. Iohexol induced numerous changes in HK2 renal tubular cells, such as enlarged cell shape, cell cycle arrest, increased apoptosis, and polyploidy. Iohexol inhibited the expression of cyclins, CDKs, ZO-1, and E-cadherin but conversely enhanced the expression of p21 and fibrosis-related genes, including TGF-β1, CTGF, collagen I, collagen III, and HIF-1α within 60 hr after the exposure. Except for the recovery from cell cycle arrest and cell cycle gene expression, notably, the removal of iohexol by medium replacement could not fully recover the renal tubular cells from the formation of polyploid cells, the adhesion or spreading, or the expression of fibrosis-related genes. The present study demonstrates, for the first time, that iohexol exerts latent cytotoxic effects on cultured renal tubular cells after its removal, suggesting that these irreversible cell changes may cause the insufficiency of radiocontrast reduction in CIN, which is worth investigating further.
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Affiliation(s)
- Hsing-Yu Chen
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
- Division of Chinese Internal Medicine, Center for Traditional Chinese Medicine, Chang Gung Memorial Hospital, Taoyuan 33378, Taiwan
- School of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
| | - Yi-Hong Wu
- Division of Chinese Internal Medicine, Center for Traditional Chinese Medicine, Chang Gung Memorial Hospital, Taoyuan 33378, Taiwan
- School of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
| | - Cheng-Yu Wei
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
| | - Zhi-Yao Liao
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
| | - Hsiao-Ting Wu
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
| | - Yung-Chang Chen
- School of Medicine, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
- Division of Nephrology, Department of Internal Medicine, Chang Gung Memorial Hospital, Taoyuan 33342, Taiwan
| | - Jong-Hwei S Pang
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
- Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital, Taoyuan 33342, Taiwan
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Bolten JS, Mancuso RV, Roos NJ, Mayr A, Puligilla RD, Kraus L, Odermatt A, Fricker G, Huwyler J. Nephrotoxicity of iopamidol is associated with mitochondrial impairment in human cell and teleost models. Toxicol Appl Pharmacol 2023; 466:116493. [PMID: 36977437 DOI: 10.1016/j.taap.2023.116493] [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: 02/09/2023] [Revised: 03/23/2023] [Accepted: 03/24/2023] [Indexed: 03/29/2023]
Abstract
Iopamidol is a nonionic, low-osmolar iodinated contrast agent used for angiography. Its clinical use is associated with renal dysfunction. Patients suffering from preexisting kidney disease have an increased risk of renal failure upon iopamidol administration. Studies in animals confirmed renal toxicity, but the involved mechanisms remain unclear. Therefore, the aim of the present study was to use human embryonic kidney cells (HEK293T) as a general cell model of mitochondrial damage, as well as, zebrafish larvae, and isolated proximal tubules of killifish to investigate factors promoting renal tubular toxicity of iopamidol with a focus on mitochondrial damage. Results from in vitro HEK293T cell-based assays indicate that iopamidol affects mitochondrial function Treatment with iopamidol induces ATP depletion, reduces the mitochondrial membrane potential, and elevates mitochondrial superoxide and reactive oxygen species accumulation. Similar results were obtained with gentamicin sulfate and cadmium chloride, two well-known model compounds associated with renal tubular toxicity. Confocal microscopy confirms changes in mitochondrial morphology, such as mitochondrial fission. Importantly, these results were confirmed in proximal renal tubular epithelial cells using ex vivo and in vivo teleost models. In conclusion, this study provides evidence for iopamidol-induced mitochondrial damage in proximal renal epithelial cells. Teleost models allow studying proximal tubular toxicity with translational relevance for humans.
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Affiliation(s)
- Jan Stephan Bolten
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Technology, University of Basel, 4056, Switzerland
| | - Riccardo Vincenzo Mancuso
- Department of Pharmaceutical Sciences, Division of Clinical Pharmacology & Toxicology, University of Basel, 4031, Switzerland; Department of Pharmaceutical Sciences, Division of Molecular Pharmacy, University of Basel, 4056, Switzerland
| | - Noëmi Johanna Roos
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Technology, University of Basel, 4056, Switzerland
| | - Aline Mayr
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Technology, University of Basel, 4056, Switzerland
| | - Ramya Deepthi Puligilla
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Technology, University of Basel, 4056, Switzerland
| | - Lisa Kraus
- Institute of Pharmacy and Molecular Biotechnology, University of Heidelberg, 69120, Germany
| | - Alex Odermatt
- Department of Pharmaceutical Sciences, Division of Molecular and Systems Toxicology, University of Basel, 4056, Switzerland
| | - Gert Fricker
- Institute of Pharmacy and Molecular Biotechnology, University of Heidelberg, 69120, Germany; Mount Desert Island Biological Laboratory, Salsbury Cove, ME 04672, USA
| | - Jörg Huwyler
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Technology, University of Basel, 4056, Switzerland; Mount Desert Island Biological Laboratory, Salsbury Cove, ME 04672, USA.
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Gursoy E, Baydar O. The triglyceride-glucose index and contrast-induced nephropathy in non-ST elevation myocardial infarction patients undergoing percutaneous coronary intervention. Medicine (Baltimore) 2023; 102:e32629. [PMID: 36637929 PMCID: PMC9839251 DOI: 10.1097/md.0000000000032629] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
The triglyceride glucose (TyG) index is an indicator of insulin resistance and associated with increased risk of diabetes mellitus and cardiovascular events. Our study investigates the correlation between TyG index and contrast induced nephropathy (CIN) in non-diabetic patients with non-ST elevation myocardial infarction (NSTEMI) undergoing percutaneous coronary intervention (PCI). 350 non-diabetic NSTEMI patients (183, 52.3% male) undergoing PCI were retrospectively enrolled. The enrolled cohort was divided into 2 groups based on the calculated TyG index, namely values < 8.65 or higher. CIN was defined as an increase in serum creatinine > 25% or 0.5 mg/dL from baseline in the first 48 to 72 hours after PCI. A total of 56 (16%) cases of CIN were diagnosed. In contrast to patients with lower TyG indexes, patients with higher TyG indexes (≥8.65) had a higher frequency of CIN, 9.5%. versus 20.8% respectively (P .004). Patients with CIN also had higher TyG indexes (8.74 ± 0.12 vs 8.67 ± 0.11, P < .001). In addition, TyG index, age, and glomerular filtration rate were identified as independent risk factors for CIN in logistic regression model (OR: 2.5 CI: 1.3-4.6, P .006, OR: 1.0 CI: 1.0-1.1, P < .001, OR: 1.0 KI: 1.03-1.06, P .025). In the ROC analysis, the area under the curve predictive of CIN was 0.666 (P < .001, 95% [CI] 0.58-0.75) with a cutoff value of 8.69 (sensitivity 71,4%, specificity 55.1%) TyG index. Higher TyG indexes are associated with an increased risk of CIN in non-diabetic patients with NSTEMI.
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Affiliation(s)
- Erol Gursoy
- Koc University Hospital, Department of Cardiology, Istanbul, Turkey
- * Correspondence: Erol Gürsoy, Koc University Hospital, Department of Cardiology, Maltepe District, Davutpaşa Street, No:4, Zeytinburnu, Istanbul, Turkey (e-mail: )
| | - Onur Baydar
- Koc University Hospital, Department of Cardiology, Istanbul, Turkey
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Briguori C, Donahue M, D'Amore C. Renal Insufficiency and the Impact of Contrast Agents. Interv Cardiol 2022. [DOI: 10.1002/9781119697367.ch28] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Kim K, Jeong B, Lee YM, Son HE, Ryu JY, Park S, Jeong JC, Chin HJ, Kim S. Three-Dimensional Kidney-on-a-Chip Assessment of Contrast-Induced Kidney Injury: Osmolality and Viscosity. MICROMACHINES 2022; 13:mi13050688. [PMID: 35630155 PMCID: PMC9146534 DOI: 10.3390/mi13050688] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 04/22/2022] [Accepted: 04/27/2022] [Indexed: 12/19/2022]
Abstract
Increased viscosity of concentrated contrast media (CM) in the renal tubules can perturb renal hemodynamics and have a detrimental effect on tubular epithelial cells. However, the effects of viscosity on contrast-induced nephropathy (CIN) remain poorly understood. Conventional in vitro culture studies do not reflect the rheological properties of CM. Therefore, we investigated the effects of CM viscosity on renal tubules using a kidney-on-a-chip and two different types of CM. Renal proximal tubule epithelial cells (RPTEC) were cultured in a three-dimensional microfluidic culture platform under bidirectional fluid shear stress. We treated the RPTEC with two types of CM: low- (LOCM, iopromide) and iso-osmolar contrast media (IOCM, iodixanol). Renal tubular cell injury induced by LOCM and IOCM was examined under different iodine concentrations (50–250 mgI/mL) and shear-stress conditions. LOCM showed a significant dose-dependent cytotoxic effect, which was significantly higher than that of IOCM under static and low-to-moderate shear stress conditions. However, high shear-stress resulted in reduced cell viability in IOCM; no difference between IOCM and LOCM was found under high shear-stress conditions. The cytotoxic effects were pronounced at a mean shear stress of 1 dyn/cm2 or higher. The high viscosity of IOCM slowed the fluid flow rate and augmented fluid shear-stress. We suggest an alternative in vitro model of CIN using the three-dimensional kidney-on-a-chip. Our results indicate a vital role of viscosity-induced nephrotoxicity under high shear-stress conditions, contrary to the findings of conventional in vitro studies.
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Affiliation(s)
- Kipyo Kim
- Division of Nephrology and Hypertension, Department of Internal Medicine, Inha University College of Medicine, Incheon 22332, Korea;
| | - Beomgyun Jeong
- Research Center for Materials Analysis, Korea Basic Science Institute, Daejeon 34133, Korea;
| | - Yun-Mi Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam 13620, Korea; (Y.-M.L.); (H.-E.S.); (J.-Y.R.); (S.P.); (J.C.J.); (H.J.C.)
| | - Hyung-Eun Son
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam 13620, Korea; (Y.-M.L.); (H.-E.S.); (J.-Y.R.); (S.P.); (J.C.J.); (H.J.C.)
| | - Ji-Young Ryu
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam 13620, Korea; (Y.-M.L.); (H.-E.S.); (J.-Y.R.); (S.P.); (J.C.J.); (H.J.C.)
| | - Seokwoo Park
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam 13620, Korea; (Y.-M.L.); (H.-E.S.); (J.-Y.R.); (S.P.); (J.C.J.); (H.J.C.)
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Jong Cheol Jeong
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam 13620, Korea; (Y.-M.L.); (H.-E.S.); (J.-Y.R.); (S.P.); (J.C.J.); (H.J.C.)
| | - Ho Jun Chin
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam 13620, Korea; (Y.-M.L.); (H.-E.S.); (J.-Y.R.); (S.P.); (J.C.J.); (H.J.C.)
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Sejoong Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam 13620, Korea; (Y.-M.L.); (H.-E.S.); (J.-Y.R.); (S.P.); (J.C.J.); (H.J.C.)
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul 03080, Korea
- Correspondence: ; Tel.: +82-31-787-7051; Fax: +82-31-787-4052
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Mandurino-Mirizzi A, Munafò A, Crimi G. Contrast-Associated Acute Kidney Injury. J Clin Med 2022; 11:2167. [PMID: 35456260 PMCID: PMC9027950 DOI: 10.3390/jcm11082167] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 03/28/2022] [Accepted: 04/06/2022] [Indexed: 01/25/2023] Open
Abstract
Contrast-associated acute kidney injury (CA-AKI) is an impairment of renal function, which occurs within days of intravascular administration of iodinated contrast media. Taking into account that minimally invasive cardiac interventions are becoming increasingly popular, compared to traditional surgery, given their impact on prognosis and costs, CA-AKI remains a subject of increasing interest for patients and physicians. This review summarizes the epidemiology and risk stratification, diagnostic criteria, pathophysiology and clinical implications of CA-AKI, providing evidence for the most studied preventive strategies.
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Affiliation(s)
| | - Andrea Munafò
- Division of Cardiology, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy; (A.M.-M.); (A.M.)
| | - Gabriele Crimi
- Interventional Cardiology Unit, Cardio-Thoraco Vascular Department (DICATOV), IRCCS Ospedale Policlinico San Martino, 16100 Genova, Italy
- IRCCS Italian Cardiovascular Network & Department of Internal Medicine, University of Genova, 16100 Genova, Italy
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Andreucci M, Provenzano M, Faga T, Gagliardi I, Pisani A, Perticone M, Coppolino G, De Sarro G, Serra R, Michael A. Darbepoetin alfa reduces cell death due to radiocontrast media in human renal proximal tubular cells. Toxicol Rep 2021; 8:816-821. [PMID: 33868961 PMCID: PMC8044868 DOI: 10.1016/j.toxrep.2021.03.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 03/17/2021] [Accepted: 03/27/2021] [Indexed: 01/19/2023] Open
Abstract
Radiocontrast medium, sodium diatrizoate, reduces renal cell viability in vitro. Effect of darbepoetin on diatrizoate-treated cells was studied. Pre-treatment of renal cells with darbepoetin could reduce diatrizoate toxicity. Darbepoetin caused changes in the activation state of signaling molecules.
The hypersialylated erythropoiesis stimulating agent (ESA) darbepoetin alfa was developed for the treatment of anemia, and has also been reported to have other nonerythropoietic effects. This study outlines one such effect against the toxicity of the radiocontrast medium (RCM) sodium diatrizoate (NaD) in human renal proximal tubular (HK-2) cells in vitro. Using a standard cell viability assay, we observed that pre-incubation of HK-2 cells with darbepoetin (at concentrations of 0.25and 1.0 μg/mL) for 2.5 h prior to addition of NaD (75 mg I/mL, for 2 h) reduced the decrease in cell viability due to the RCM, assayed 22 h after removal of the NaD, whilst maintaining the cells incubated with darbepoetin. Western blot analysis showed that darbepoetin reduced the phosphorylation of c-Jun N-terminal kinases (JNK)1/2 over a period of 1 h incubation with NaD, but did not have an obvious effect on several other targets associated with cell death/survival. However, incubation of HK-2 cells with darbepoetin for a further 22 h after prior exposure to NaD (75 mg I/mL, for 2 h) and subsequent immunoblotting showed that darbepoetin: caused recovery of the activity (phosphorylation) of pro-proliferative/survival signalling molecules, such as Akt (Ser473), STAT (signal transducer and activator of transcription)3(Tyr705); decreased activation of the pro-apoptotic transcription factor FOXO3a by increasing its phosphorylation at Thr32; decreased phosphorylation (activation) of p38 Mitogen activated protein kinase; and reduced poly(ADP-ribose)polymerase (PARP)-1 cleavage. In summary, we present here a beneficial nonerythropoietic effect of darbepoetin alfa against radiocontrast-induced toxicity together with modulation of signalling molecules that play a crucial role in determining cell fate.
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Affiliation(s)
- Michele Andreucci
- Department of "Health Sciences", Nephrology Unit, "Magna Graecia" University, I-88100, Catanzaro, Italy
| | - Michele Provenzano
- Department of "Health Sciences", Nephrology Unit, "Magna Graecia" University, I-88100, Catanzaro, Italy
| | - Teresa Faga
- Department of "Health Sciences", Nephrology Unit, "Magna Graecia" University, I-88100, Catanzaro, Italy
| | - Ida Gagliardi
- Department of "Health Sciences", Nephrology Unit, "Magna Graecia" University, I-88100, Catanzaro, Italy
| | - Antonio Pisani
- Department of "Public Health", Nephrology Unit, "Federico II" University, I-80131, Naples, Italy
| | - Maria Perticone
- Department of Experimental and Clinical Medicine, "Magna Græcia" University, I-88100, Catanzaro, Italy
| | - Giuseppe Coppolino
- Department of "Health Sciences", Nephrology Unit, "Magna Graecia" University, I-88100, Catanzaro, Italy
| | - Giovambattista De Sarro
- Department of "Health Sciences", Pharmacology Unit, "Magna Graecia" University, I-88100, Catanzaro, Italy
| | - Raffaele Serra
- Interuniversity Center of Phlebolymphology (CIFL), International Research and Educational Program in Clinical and Experimental Biotechnology, Headquarters: "Magna Graecia" University, I-88100, Catanzaro, Italy
| | - Ashour Michael
- Department of "Health Sciences", Nephrology Unit, "Magna Graecia" University, I-88100, Catanzaro, Italy
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Kim H, Jo K. Laboratory Predictors of Contrast-Induced Nephropathy After Neurointervention: A Prospective 3-Year Observational Study. World Neurosurg 2019; 135:e77-e82. [PMID: 31698123 DOI: 10.1016/j.wneu.2019.10.166] [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: 07/22/2019] [Revised: 10/23/2019] [Accepted: 10/24/2019] [Indexed: 10/25/2022]
Abstract
OBJECTIVE The purpose of this study was to assess the natural course of contrast-induced nephropathy (CIN) and to determine the predictive abilities of preprocedural high-sensitivity C-reactive protein (hs-CRP) and urine neutrophil gelatinase-associated lipocalin for CIN after neurointervention procedures. METHODS We prospectively enrolled 176 patients who underwent an elective neurointervention procedure (diagnostic angiography or endovascular surgery). CIN was defined as an increase in serum creatinine of more than 0.5 mg/dL or an increase of at least 25% from the baseline value within 48 hours of contrast media exposure. The predictive value of hs-CRP and serial urine NGAL (baseline, 6, 24, and 48 hours) for the risk of CIN was assessed using multivariate logistic regression. RESULTS CIN occurred in 17 patients (9.46%). Multivariate analysis revealed that the CIN incidence was significantly associated with high baseline hs-CRP. All patients with CIN had creatinine return to baseline levels within 7 days. No patients required dialysis or suffered permanent sequelae as a result of a creatinine increase. During the 3-year follow-up period, no cerebro- or cardiovascular events occurred in the CIN group. However, 3 patients in the non-CIN group suffered a vascular event. One was a myocardial infarction, and 2 were ischemic strokes. CONCLUSIONS The incidence of CIN after neurointervention procedures was relatively high (9.46%). The natural course of CIN was favorable, however, and did not affect cerebrovascular events. Additionally, patients with CIN typically recovered with supportive care within 7 days. Elevated preprocedural hs-CRP levels (>5 mg/dL) were a significant and independent predictor of CIN after neurointervention procedures.
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Affiliation(s)
- Hoon Kim
- Department of Neurosurgery, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - KwangWook Jo
- Department of Neurosurgery, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
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Baydar O, Kilic A. CHA2DS2-VASC Score Predicts Risk of Contrast-Induced Nephropathy in Non-ST Elevation Myocardial Infarction Patients Undergoing Percutaneous Coronary Interventions. KIDNEY DISEASES (BASEL, SWITZERLAND) 2019; 5:266-271. [PMID: 31768384 PMCID: PMC6873045 DOI: 10.1159/000501036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 05/18/2019] [Indexed: 05/05/2023]
Abstract
BACKROUND The CHA2DS2-VASC score, used for embolic risk stratification in atrial fibrillation, has been reported recently to predict adverse clinical outcomes in patients with coronary artery disease. We investigated the correlation between the CHA2DS2-VASC score and contrast-induced nephropathy (CIN) in patients with non-ST elevation myocardial infarction (NSTEMI) who underwent percutaneous coronary intervention (PCI). METHODS We retrospectively enrolled 363 (191; 52.6% men) NSTEMI patients undergoing PCI. The CHA2 DS2-VASC score was calculated for each patient, and the study population was divided into 2 groups: CHA2DS2-VASC score <2 group (low score; n = 259, 71.3%) and CHA2DS2-VASC score ≥2 group (high score; n = 104, 28.6%). Patients were then reallocated to 2 groups according to the presence or absence of CIN. CIN was defined as a rise in serum creatinine >0.5 mg/dL or >25% increase in baseline within 72 h after PCI. RESULTS Overall, 56 cases (15.4%) of CIN were diagnosed. When patients with a CHA2DS2-VASC score of <2 were compared with those with a CHA2DS2-VASC score of ≥2, patients with a high score had a higher frequency of CIN (33) 31.7% versus (23) 8.9%; p < 0.001. Also patients with CIN had higher CHADS2 VASC score (3.94 ± 1.13 vs. 1.68 ± 0.46, p < 0.001). Additionally, in-hospital mortality, length of hospital stay, major bleeding, requirement of mechanical ventilation, and dialysis were observed significantly higher in patients with CHA2DS2-VASC score of ≥2 (p = 0.001, p = 0.002, p = 0.006, p = 0.001, p = 0.001, respectively). In receiver operating characteristic curve analysis, the area under the curve for predicting CIN was 0.702 (p < 0.001, 95% CI 0.617-0.787) and cutoff value was 2.5 (sensitivity 58.9%, specificity 76.9%) for the number of CHA2DS2-VASC score. CONCLUSION In NSTEMI patients undergoing PCI, CHADS2 VASC score is associated with an increased risk for CIN and in-hospital morbidity and mortality.
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Affiliation(s)
- Onur Baydar
- *Onur Baydar, MD, Department of Cardiology, Koc University Hospital, ZEYTINBURNU, TR–34000 Istanbul (Turkey), E-Mail
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11
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Abstract
Contrast nephropathy (CN) is acute kidney injury (AKI) that occurs within 24 to 72 hours of iodinated contrast medium (ICM) administration. Mechanisms of CN include hyperviscosity, free radical formation, and renal medullary oxygen supply/demand mismatch. Although risk factors for CN have been identified, it remains uncertain whether ICM causes or is simply associated with AKI. The cornerstones of CN prevention are using low-osmolal ICM, intravenous hydration, and statins, especially in patients with chronic kidney disease. With appropriate CN risk mitigation, coronary angiography and intervention should not be routinely withheld from patients with acute coronary syndromes.
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Affiliation(s)
- James E Novak
- Division of Nephrology, Henry Ford Hospital, Wayne State University, CFP-505, 2799 West Grand Boulevard, Detroit, MI 48202, USA.
| | - Richa Handa
- Division of Nephrology, Henry Ford Hospital, CFP-506, 2799 West Grand Boulevard, Detroit, MI 48202, USA
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Faucon AL, Bobrie G, Clément O. Nephrotoxicity of iodinated contrast media: From pathophysiology to prevention strategies. Eur J Radiol 2019; 116:231-241. [DOI: 10.1016/j.ejrad.2019.03.008] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 03/09/2019] [Accepted: 03/12/2019] [Indexed: 12/28/2022]
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13
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Feng YQ, He XY, Song FE, Chen JY. Association between Contrast Media Volume and 1-Year Clinical Outcomes in Patients Undergoing Coronary Angiography. Chin Med J (Engl) 2019; 131:2424-2432. [PMID: 30334527 PMCID: PMC6202589 DOI: 10.4103/0366-6999.243563] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Background: The excess volume of contrast media (CM) is a marker of a more severe coronary culprit lesion and longer intervention duration in patients undergoing cardiac procedures. However, it is unclear whether the contrast volume is directly correlated with worse clinical outcomes. The aim of this study was to investigate the association between contrast dose and the incidence of 1-year major adverse cardiac and cerebrovascular events (MACCE) and all-cause bleeding events in patients undergoing cardiac catheterization and coronary angiography (CAG). Methods: We prospectively enrolled 10,961 consecutive patients diagnosed with coronary heart disease expecting CAG from 2012 to 2013. The study population was pursued with a follow-up duration of 1 year. The predictive value of contrast volume, divided into quartiles, for the risk of MACCE and all-cause bleeding events was assessed using logistic regression analysis. Results: The cumulative incidence of 1-year MACCE was 8.65%, which was directly associated with increasing contrast volume. In particular, MACCE was observed in 7.16%, 7.89%, 9.31%, and 11.73% of cases in the contrast volume quartile Q1 (≤100 ml), Q2 (101–140 ml), Q3 (141–200 ml), and Q4 (>200 ml), respectively (P < 0.001). Moreover, the incidence of 1-year all-cause bleeding events was noted in 4.70%, 5.93%, 7.28%, and 8.21% of patients in Q1, Q2, Q3, and Q4, respectively (P < 0.001). The survival analysis showed that the 1-year MACCE rate was higher in patients using greater CM volume during the CAG. CM volume used >140 ml was associated with the occurrence of 1-year MACCE, and the incidence was dramatically elevated in patients exceeding a contrast volume of 200 ml (P = 0.007). Conclusion: Our data suggested that higher contrast volume was significantly correlated with an increased risk of MACCE and all-cause bleeding events in patients undergoing cardiac catheterization. Trial Registration: ClinicalTrials.gov, NCT01735305; https://clinicaltrials.gov/ct2/show/NCT01735305?id=NCT017353057rank=1.
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Affiliation(s)
- Ying-Qing Feng
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, China
| | - Xu-Yu He
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, China
| | - Fei-Er Song
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, China
| | - Ji-Yan Chen
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, China
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Vergadis C, Festas G, Spathi E, Pappas P, Spiliopoulos S. Methods for Reducing Contrast Use and Avoiding Acute Kidney Injury During Endovascular Procedures. Curr Pharm Des 2019; 25:4648-4655. [PMID: 31823699 DOI: 10.2174/1381612825666191211112800] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 12/03/2020] [Indexed: 02/08/2023]
Abstract
Iodinated Contrast Media (CM) has a plethora of applications in routine non-invasive or percutaneous invasive imaging examinations and therapeutic interventions. Unfortunately, the use of CM is not without complications, with contrast-induced acute kidney injury (CI-AKI) being among the most severe. CI-AKI is a syndrome defined as a rapid development of renal impairment after a few days of CM endovascular injection, without the presence of any other underlying related pathologies. Although mostly transient and reversible, for a subgroup of patients with comorbidities related to renal failure, CI-AKI is directly leading to longer hospitalization, elevated rates of morbidity and mortality, as well as the increased cost of funding. Thus, a need for classification in accordance with clinical and peri-procedural criteria is emerged. This would be very useful for CI-AKI patients in order to predict the ones who would have the greatest advantage from the application of preventive strategies. This article provides a practical review of the recent evidence concerning CI-AKI incidence, diagnosis, and sheds light on prevention methods for reducing contrast use and avoiding AKI during endovascular procedures. In conclusion, despite the lack of a specific treatment protocol, cautious screening, assessment, identification of the high-risk patients, and thus the application of simple interventions -concerning modifiable risk factors- can significantly reduce CI-AKI risk.
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Affiliation(s)
- Chrysovalantis Vergadis
- Department of Radiology, Division of Interventional Radiology, "Laiko" General Hospital, 11527 Athens, Greece
| | - Georgios Festas
- Department of Radiology, Division of Interventional Radiology, School of Medicine, National and Kapodistrian University of Athens, "Attikon" University General Hospital, Athens, Greece
| | - Eleni Spathi
- Department of Radiology, "Elena Venizelou" General Maternal Hospital, 11521 Athens, Greece
| | - Paris Pappas
- Department of Radiology, Division of Interventional Radiology, "Laiko" General Hospital, 11527 Athens, Greece
| | - Stavros Spiliopoulos
- Department of Radiology, Division of Interventional Radiology, School of Medicine, National and Kapodistrian University of Athens, "Attikon" University General Hospital, Athens, Greece
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15
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Cytotoxicity of radiocontrast dyes in human umbilical cord mesenchymal stem cells. Toxicol Appl Pharmacol 2018; 349:72-82. [PMID: 29705293 DOI: 10.1016/j.taap.2018.04.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 04/13/2018] [Accepted: 04/24/2018] [Indexed: 11/22/2022]
Abstract
Radiocontrast dyes are used for a wide range of diagnostic procedures for enhancing the image of anatomical structures, pain targets, and vascular uptake. While some of these dyes show toxicity to primary cells, their effect on stem cells, particularly mesenchymal stem cells (MSCs), is unknown. This study investigates the cytotoxic effects of two clinically used radiocontrast dyes, iohexol and iopamidol, on bone marrow and human umbilical cord MSCs. Exposure to these dyes significantly affected morphology of MSCs from both sources, as treated cells appeared transparent and no longer fibroblastoid. Cell viability decreased as determined by trypan blue and Annexin-V/PI staining, in a dose dependent manner with simultaneous loss of CD90 and CD105 concurrent with spontaneous differentiation in MSCs treated with iohexol and iopamidol. In addition, significantly higher cell death was observed in MSCs exposed to iopamidol than iohexol. At a concentration of 1:1, iohexol and iopamidol induced apoptosis in 19% and 92% (<.01) of MSCs, respectively. Global transcriptome analysis of treated MSCs revealed 139 and 384 differentially expressed genes in iohexol vs control and iopamidol vs control at p ≤ .01 and 1.5-fold, respectively. This suggested that iopamidol had more significant effect on the transcription of MSCs. Based on these results a molecular mechanism of radiocontast dye induced cell death via intrinsic apoptosis pathway mediated by p53 was proposed. Since iopamidol was significantly more toxic than iohexol in human MSCs, a more careful examination of safety of radiocontrast dyes for clinical use is warranted.
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16
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Does contrast media volume affect long-term survival in patients with chronic kidney disease? ACTA ACUST UNITED AC 2017; 2:e82-e89. [PMID: 29242849 PMCID: PMC5728076 DOI: 10.5114/amsad.2017.71280] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Accepted: 10/10/2017] [Indexed: 01/10/2023]
Abstract
Introduction The aim of this study was to investigate the relationships between survival and related features in patients with chronic kidney disease undergoing cardiac catheterization and coronary angiography. Material and methods Three hundred and seven consecutive patients with an estimated glomerular filtration rate (e-GFR) less than 60 ml/min/1.73 m2 undergoing coronary angiography were enrolled in the study. The study population was pursued with a median follow-up duration of 41.5 months. Results In the Cox proportional hazards regression model, age (HR = 1.047, 95% CI: 1.011-1.084, p = 0.01), contrast media volume (HR = 1.004, 95% CI: 1.001-1.007, p = 0.008), angiotensin II receptor blocker (ARB) use (HR = 0.485, 95% CI: 0.261-0.901, p = 0.02), and e-GFR (HR = 0.978, 95% CI: 0.940-1.016, p = 0.04) were found to be independent predictors of long-term all-cause mortality. The survival analysis showed that the long-term all-cause mortality rate was higher in patients using contrast media volume greater than 140 ml compared to patients given less than or equal to 140 ml during the coronary angiography (3.6% vs. 11.6% log-rank, p = 0.001). Conclusions In patients with chronic kidney disease undergoing cardiac catheterization, age, contrast media volume, e-GFR and low ARB use were found to be independent predictors of long-term all-cause mortality. Contrast media volume used > 140 ml was independently associated with long-term all-cause mortality compared to less than or equal to 140 ml during cardiac catheterization.
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17
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Weisbord SD, du Cheryon D. Contrast-associated acute kidney injury is a myth: No. Intensive Care Med 2017; 44:107-109. [DOI: 10.1007/s00134-017-5015-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 11/29/2017] [Indexed: 01/08/2023]
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18
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Andreucci M, Faga T, Pisani A, Serra R, Russo D, De Sarro G, Michael A. Quercetin protects against radiocontrast medium toxicity in human renal proximal tubular cells. J Cell Physiol 2017; 233:4116-4125. [PMID: 29044520 DOI: 10.1002/jcp.26213] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Accepted: 10/12/2017] [Indexed: 11/08/2022]
Abstract
Radiocontrast media (RCM)-induced acute kidney injury (CI-AKI) is a major clinical problem whose pathophysiology is not well understood. Direct toxic effects on renal cells, possibly mediated by reactive oxygen species, have been postulated as contributing to CI-AKI. We investigated the effect of quercetin on human renal proximal tubular (HK-2) cells treated with the radiocontrast medium (RCM) sodium diatrizoate. Quercetin is the most widely studied flavonoid, and the most abundant flavonol present in foods. It has been suggested to have many health benefits, including angioprotective properties and anti-cancer effects. These beneficial effects have been attributed to its antioxidant properties and its ability to modulate cell signaling pathways. Incubation of HK-2 cells with 100 μM quercetin caused a decrease in cell viability and pre-treatment of HK-2 cells with 100 μM quercetin followed by incubation with 75 mgI/ml sodium diatrizoate for 2 hr caused a decrease in cell viability which was worse than in cells treated with diatrizoate alone. However, further incubation of the cells (for 22 hr) after removal of the diatrizoate and quercetin caused a recovery in cell viability in those cells previously treated with quercetin + diatrizoate and quercetin alone. Analysis of signaling molecules by Western blotting showed that in RCM-treated cells receiving initial pre-treatment with quercetin, followed by its removal, an increase in phosphorylation of Akt (Ser473), pSTAT3 (Tyr705), and FoxO3a (Thr32) as well as an induction of Pim-1 and decrease in PARP1 cleavage were observed. Quercetin may alleviate the longer-term toxic effects of RCM toxicity and its possible beneficial effects should be further investigated.
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Affiliation(s)
- Michele Andreucci
- Department of Health Sciences (Nephrology Unit), "Magna Graecia" University, Catanzaro, Italy
| | - Teresa Faga
- Department of Health Sciences (Nephrology Unit), "Magna Graecia" University, Catanzaro, Italy
| | - Antonio Pisani
- Department of Public Health (Nephrology Unit), "Federico II" University, Naples, Italy
| | - Raffaele Serra
- Department of Medical and Surgical Sciences, "Magna Graecia" University, Catanzaro, Italy
| | - Domenico Russo
- Department of Public Health (Nephrology Unit), "Federico II" University, Naples, Italy
| | - Giovambattista De Sarro
- Department of Health Sciences (Pharmacology Unit), "Magna Graecia" University, Catanzaro, Italy
| | - Ashour Michael
- Department of Health Sciences (Nephrology Unit), "Magna Graecia" University, Catanzaro, Italy
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19
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Liu N, Lei R, Tang MM, Cheng W, Luo M, Xu Q, Duan SB. Autophagy is activated to protect renal tubular epithelial cells against iodinated contrast media‑induced cytotoxicity. Mol Med Rep 2017; 16:8277-8282. [PMID: 28944925 DOI: 10.3892/mmr.2017.7599] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 07/14/2017] [Indexed: 11/05/2022] Open
Abstract
With the steady increase in the use of various contrast‑related technologies in recent years, contrast‑induced nephropathy has received significant attention from clinicians and researchers. The present study aimed to determine the potential role of autophagy in iodinated contrast media (CM)‑induced cell injury and apoptosis in human proximal renal tubular epithelial HK‑2 cells. The present study used the iodinated CM iohexol (200 mg iodine/ml) to treat HK‑2 cells for 6 h, in order to establish a damaged cell model. The autophagy inhibitor 3‑methyladenine (3‑MA; 10 mM) was used to inhibit the formation of autophagosomes. Immunofluorescence assay and transmission electron microscopy (TEM) were used to observe the formation of autophagosomes in the cytoplasm. The protein expression levels of microtubule‑associated protein 1A/1B‑light chain 3 (LC3)‑II and autophagy‑related protein 7 (Atg7) were detected by western blotting. The cytotoxicity of CM was evaluated by MTT assay and lactate dehydrogenase release, and cell apoptosis was detected by flow cytometry. Increased formation of autophagosomes and autophagic vesicles was observed under TEM in HK‑2 cells following iohexol treatment for 6 h. Immunofluorescence assay demonstrated that iohexol increased LC3‑II expression in HK‑2 cells. Furthermore, the expression levels of LC3‑II and Atg7 in HK‑2 cells were significantly upregulated by iohexol administration; however, LC3‑II and Atg7 expression was decreased by 3‑MA treatment. These results provided evidence to suggest that autophagy is activated in response to iohexol‑induced cell injury and apoptosis, and may exert a renoprotective role in HK‑2 cells.
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Affiliation(s)
- Na Liu
- Department of Nephrology, Second Xiangya Hospital of Central South University, Nephrology Institute of Central South University, Center of Kidney Disease and Dialysis In Hunan Province, Changsha, Hunan 410011, P.R. China
| | - Rong Lei
- Department of Nephrology, Second Xiangya Hospital of Central South University, Nephrology Institute of Central South University, Center of Kidney Disease and Dialysis In Hunan Province, Changsha, Hunan 410011, P.R. China
| | - Mi-Mi Tang
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Wei Cheng
- Department of Nephrology, Second Xiangya Hospital of Central South University, Nephrology Institute of Central South University, Center of Kidney Disease and Dialysis In Hunan Province, Changsha, Hunan 410011, P.R. China
| | - Min Luo
- Department of Nephrology, Second Xiangya Hospital of Central South University, Nephrology Institute of Central South University, Center of Kidney Disease and Dialysis In Hunan Province, Changsha, Hunan 410011, P.R. China
| | - Qian Xu
- Department of Nephrology, Second Xiangya Hospital of Central South University, Nephrology Institute of Central South University, Center of Kidney Disease and Dialysis In Hunan Province, Changsha, Hunan 410011, P.R. China
| | - Shao-Bin Duan
- Department of Nephrology, Second Xiangya Hospital of Central South University, Nephrology Institute of Central South University, Center of Kidney Disease and Dialysis In Hunan Province, Changsha, Hunan 410011, P.R. China
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20
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Schmucker J, Fach A, Becker M, Seide S, Bünger S, Zabrocki R, Fiehn E, Würmann-Busch B, Pohlabeln H, Günther K, Ahrens W, Hambrecht R, Wienbergen H. Predictors of acute kidney injury in patients admitted with ST-elevation myocardial infarction - results from the Bremen STEMI-Registry. EUROPEAN HEART JOURNAL-ACUTE CARDIOVASCULAR CARE 2017; 7:710-722. [PMID: 29064276 DOI: 10.1177/2048872617708975] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
BACKGROUND: Deterioration of renal function after exposition to contrast media is a common problem in patients with myocardial infarction undergoing percutaneous coronary interventions. The aim of the present study was to assess the incidence of acute kidney injury in patients admitted with ST-elevation-myocardial infarction (STEMI) and its association with infarction severity, comorbidities and treatment modalities, including amount of contrast media applied. METHODS: All patients with STEMI from the metropolitan area of Bremen, Germany are treated at the Bremen Heart Centre and since 2006 documented in the Bremen STEMI-Registry. Acute kidney injury was graded from stage 0 to 3 following the Kidney-disease-improving-global outcomes criteria from 2012. RESULTS: Data from 3810 patients admitted with STEMI were included in this study. No acute kidney injury was observed in 3120 (82%) patients while acute kidney injury was detected in 690 (18%) patients: Stage 1: n=497 (13%), 2: n=66 (2%), 3: n=127 (3%). Acute kidney injury was associated with elevated 30-day (0: 3%, 1: 20%, 2: 46%, 3: 58%) and one-year mortality rates (0: 6%, 1: 26%, 2: 49%, 3: 66%). Higher acute kidney injury stages were associated with higher peak creatine kinase (in U/l±SEM): stage 0: 1748±33, 1: 2588±127, 2: 3684±395, 3: 3330±399, p (<0.01), lower mean systolic blood pressure at admission (in mmHG±SD): 0: 133±28, 1: 129±31; 2: 121±31, 3: 115±33 ( p<0.01) and higher Thrombolysis in Myocardial Infarction risk score for STEMI (scale 0-14±SD): 0: 2.71±2, 1: 4.08±2, 2: 4.98±2, 3: 5.05±2, ( p<0.01). However, no such association could be found between acute kidney injury stage and amount of contrast media applied (in ml±SD) 0: 138±57, 1: 139±61; 2: 140±76; 3: 145±80 ( p=0.5). Reduced initial glomerular filtration rate was associated with higher incidences of acute kidney injury while again no relation to amount of contrast media could be observed in subgroups ranked by initial glomerular filtration rate. A multivariate analysis confirmed these results: while left-heart-failure/cardiogenic shock (odds ratio (OR) 4.2, 95% confidence interval (CI) 3.3-5.5) as well as larger infarctions (peak creatine kinase >3000 U/l (OR 2.2, 95% CI 1.7-2.8)) were independently associated with a greater risk for acute kidney injury, amount of contrast media applied during angiography was not (150-250 ml, OR 0.95, 95% CI 0.8-1.2 ( p=0.7), >250 ml, OR 1.3, 95% CI 0.8-2.0 ( p=0.5)). CONCLUSIONS: Acute kidney injury, which was associated with elevated short- and long-term mortality rates, could be observed in 18% of patients admitted with STEMI. The present data suggest that severity and haemodynamic impairment due to STEMI rather than contrast-media-induced nephropathy is the key contributor for acute kidney injury in STEMI patients. The deleterious effect of the myocardial infarction itself on renal function can be explained through renal hypoperfusion, neurohormonal activation or other pathomechanisms that might have been underestimated in the past.
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Affiliation(s)
- Johannes Schmucker
- 1 The Bremer Institut für Herz- und Kreislaufforschung am Klinikum Links der Weser, Bremen, Germany
| | - Andreas Fach
- 1 The Bremer Institut für Herz- und Kreislaufforschung am Klinikum Links der Weser, Bremen, Germany
| | | | - Susanne Seide
- 1 The Bremer Institut für Herz- und Kreislaufforschung am Klinikum Links der Weser, Bremen, Germany
| | - Stefanie Bünger
- 1 The Bremer Institut für Herz- und Kreislaufforschung am Klinikum Links der Weser, Bremen, Germany
| | - Robert Zabrocki
- 1 The Bremer Institut für Herz- und Kreislaufforschung am Klinikum Links der Weser, Bremen, Germany
| | - Eduard Fiehn
- 1 The Bremer Institut für Herz- und Kreislaufforschung am Klinikum Links der Weser, Bremen, Germany
| | - Bettina Würmann-Busch
- 1 The Bremer Institut für Herz- und Kreislaufforschung am Klinikum Links der Weser, Bremen, Germany
| | - Hermann Pohlabeln
- 3 Leibniz-Institut für Präventionsforschung und Epidemiologie, Bremen, Germany
| | - Kathrin Günther
- 3 Leibniz-Institut für Präventionsforschung und Epidemiologie, Bremen, Germany
| | - Wolfgang Ahrens
- 3 Leibniz-Institut für Präventionsforschung und Epidemiologie, Bremen, Germany
| | - Rainer Hambrecht
- 1 The Bremer Institut für Herz- und Kreislaufforschung am Klinikum Links der Weser, Bremen, Germany
| | - Harm Wienbergen
- 1 The Bremer Institut für Herz- und Kreislaufforschung am Klinikum Links der Weser, Bremen, Germany
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Atanda AC, Olafiranye O. Contrast-induced acute kidney injury in interventional cardiology: Emerging evidence and unifying mechanisms of protection by remote ischemic conditioning. CARDIOVASCULAR REVASCULARIZATION MEDICINE 2017; 18:549-553. [PMID: 28610773 DOI: 10.1016/j.carrev.2017.06.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 05/29/2017] [Accepted: 06/02/2017] [Indexed: 11/25/2022]
Abstract
Contrast-induced acute kidney injury (CI-AKI) is a common complication of many diagnostic and therapeutic cardiovascular procedures. It is associated with longer in-hospital stay, more complicated hospitalization course, and higher in-hospital morbidity and mortality. With increasing use of contrast media in various diagnostic and interventional procedures, the prevalence of CI-AKI is expected to rise. Although pre-hydration with intravenous normal saline is recommended in patients with elevated risk of CI-AKI, this approach is often not feasible in many clinical settings. Remote ischemic conditioning (RIC), elicited by application of one or more, brief, non-injurious episodes of ischemia and reperfusion of a limb, is a promising therapy for preventing or attenuating the deleterious effects of contrast media on the kidney. Although the mechanisms of protection by RIC have not been completely defined, complex humoral, neural, and inflammatory pathways have been hypothesized to be in play. Given that RIC is non-invasive and cheap, it is attractive from clinical and economic perspective as a therapy to protect the kidney from CI-AKI. In this succinct review, we highlight the unifying mechanisms of CI-AKI and provide an overview of proposed biological mechanisms of renal protection by RIC. Emerging pre-clinical and clinical evidence in interventional cardiology is also discussed.
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Affiliation(s)
- Adebayo C Atanda
- Department of Medicine, Howard University Hospital, Washington, DC
| | - Oladipupo Olafiranye
- Heart and Vascular Institute, Center for Critical Care Nephrology, University of Pittsburgh School of Medicine, Pittsburgh, PA.
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Andreucci M, Faga T, Serra R, De Sarro G, Michael A. Update on the renal toxicity of iodinated contrast drugs used in clinical medicine. Drug Healthc Patient Saf 2017; 9:25-37. [PMID: 28579836 PMCID: PMC5447694 DOI: 10.2147/dhps.s122207] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
An important side effect of diagnostic contrast drugs is contrast-induced acute kidney injury (CI-AKI; a sudden decrease in renal function) occurring 48-72 hours after injection of a contrast drug that cannot be attributed to other causes. Its existence has recently been challenged, because of some retrospective studies in which the incidence of AKI was not different between subjects who received a contrast drug and those who did not, even using propensity score matching to prevent selection bias. For some authors, only patients with estimated glomerular filtration rate <30 mL/min/1.73 m2 are at significant risk of CI-AKI. Most agree that when renal function is normal, there is no CI-AKI risk. Many experimental studies, however, are in favor of the existence of CI-AKI. Contrast drugs have been shown to cause the following changes: renal vasoconstriction, resulting in a rise in intrarenal resistance (decrease in renal blood flow and glomerular filtration rate and medullary hypoxia); epithelial vacuolization and dilatation and necrosis of proximal tubules; potentiation of angiotensin II effects, reducing nitric oxide (NO) and causing direct constriction of descending vasa recta, leading to formation of reactive oxygen species in isolated descending vasa recta of rats microperfused with a solution of iodixanol; increasing active sodium reabsorption in the thick ascending limbs of Henle's loop (increasing O2 demand and consequently medullary hypoxia); direct cytotoxic effects on endothelial and tubular epithelial cells (decrease in release of NO in vasa recta); and reducing cell survival, due to decreased activation of Akt and ERK1/2, kinases involved in cell survival/proliferation. Prevention is mainly based on extracellular volume expansion, statins, and N-acetylcysteine; conflicting results have been obtained with nebivolol, furosemide, calcium-channel blockers, theophylline, and hemodialysis.
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Affiliation(s)
| | | | - Raffaele Serra
- Interuniversity Center of Phlebolymphology (CIFL), International Research and Educational Program in Clinical and Experimental Biotechnology, Department of Medical and Surgical Sciences
| | - Giovambattista De Sarro
- Pharmacology Unit, Department of Health Sciences, Magna Graecia University, Catanzaro, Italy
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Relaxin Attenuates Contrast-Induced Human Proximal Tubular Epithelial Cell Apoptosis by Activation of the PI3K/Akt Signaling Pathway In Vitro. BIOMED RESEARCH INTERNATIONAL 2017; 2017:2869405. [PMID: 28540295 PMCID: PMC5429925 DOI: 10.1155/2017/2869405] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 03/22/2017] [Accepted: 03/26/2017] [Indexed: 12/29/2022]
Abstract
Background. Contrast-induced acute kidney injury (CI-AKI) is one of the main causes of iatrogenic acute kidney injury (AKI); however, therapeutic strategies for AKI remain limited. This study aims to explore the effect of relaxin (RLX) on contrast-induced HK-2 apoptosis and its underlying mechanisms. Methods. Renal tubular epithelial cells (HK-2) were incubated either with or without ioversol, human H2 relaxin, and LY294002 (the inhibitor of the PI3K/Akt signal pathway). Cell viability was evaluated with a CCK-8 assay. Apoptotic morphologic alterations were observed using the Hoechst 33342 staining method. Apoptosis was detected with Annexin V staining. Western blot analysis was employed to measure the expression of pAkt (S473), Akt, cleaved caspase-3, Bcl-2, Bax, and actin proteins. Results. Ioversol reduced the viability of HK-2 cells. Western blotting results revealed decreased expression of phosphorylated Akt in cells treated with ioversol. The activities of caspase-3 and Bax protein increased, while the expression of Bcl-2 protein decreased. As a result, the Bax/Bcl-2 ratio increased after treatment with ioversol. These effects were reversed when HK-2 cells were cotreated with RLX. However, with preadministration of PI3K/Akt pathway inhibitor LY294002, the effect of RLX was blocked. Conclusion. Our study demonstrates that relaxin attenuates ioversol induced cell apoptosis via activation of the PI3K/Akt signaling pathway, suggesting that RLX might play a protective role in the treatment of CI-AKI.
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Predictive Value of CHA2DS2-VASC Score for Contrast-Induced Nephropathy After Percutaneous Coronary Intervention for Acute Coronary Syndrome. Am J Cardiol 2017; 119:819-825. [PMID: 28040187 DOI: 10.1016/j.amjcard.2016.11.033] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 11/14/2016] [Accepted: 11/14/2016] [Indexed: 01/18/2023]
Abstract
The CHA2DS2-VASC score, used for embolic risk stratification in atrial fibrillation (AF), has been reported recently to predict adverse clinical outcomes in patients with acute coronary syndrome (ACS), regardless of having AF. We investigated the correlation between the CHA2DS2-VASC score and contrast-induced nephropathy (CIN) in patients with ACS who underwent urgent percutaneous coronary intervention (PCI). A total of 1,408 patients were enrolled in the study. The CHA2DS2-VASC score was calculated for each patient. Based on the receiver operating characteristic analysis, the study population was divided into 2 groups: CHA2DS2-VASC score ≤3 group (n = 944) and CHA2DS2-VASC score ≥4 group (n = 464). Patients were then reallocated to 2 groups according to the presence or absence of CIN. CIN was defined as a rise in serum creatinine >0.5 mg/dl or >25% increase in baseline within 72 hours after PCI. Overall, 159 cases (11.3%) of CIN were diagnosed. Receiver operating characteristic curve analysis revealed good diagnostic value of CHA2DS2-VASC score in predicting CIN (area under the curve 0.769, 95% confidence interval 0.733 to 0.805; p <0.001). When patients with a CHA2DS2-VASC score of ≥4 were compared with those with a CHA2DS2-VASC score of ≤3, patients with high score had a higher frequency of CIN (23.9% vs 5.1%; p <0.001), and multivariate analysis identified the CHA2DS2-VASC score of ≥4 as an independent predictor of CIN. In conclusion, CHA2DS2-VASC score can be used as a new, simple, and reliable tool to predict CIN in patients with ACS who underwent urgent PCI.
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Abstract
Contrast-induced acute kidney injury (CI-AKI) is defined as an abrupt deterioration in renal function associated with the administration of iodinated contrast media. This type of acute kidney injury is frequently encountered as a complication of percutaneous coronary intervention (PCI) and is associated with adverse short- and long-term outcomes including mainly mortality, cardiovascular morbidity and prolongation of hospitalization. The incidence of CI-AKI after PCI ranges from 2 to 20 % according to baseline kidney function. It may also range according to the clinical setting, being higher after emergency PCI. The primary manifestation is a small decline in kidney function, occurring 1 to 3 days after the procedure. Kidney function usually returns to preexisting levels within 7 days. Incidence of acute renal failure requiring dialysis following PCI is rare (<1 %). The present article aims to review up-to-date published data concerning diagnosis, definition, epidemiology and prognosis of this novel in-hospital epidemic.
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Affiliation(s)
- George Chalikias
- University Cardiology Department, Medical School, Democritus University of Thrace, Dragana, GR-68131, Alexandroupolis, Greece
| | - Ioannis Drosos
- University Cardiology Department, Medical School, Democritus University of Thrace, Dragana, GR-68131, Alexandroupolis, Greece
| | - Dimitrios N Tziakas
- University Cardiology Department, Medical School, Democritus University of Thrace, Dragana, GR-68131, Alexandroupolis, Greece.
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Histopathological Evaluation of Contrast-Induced Acute Kidney Injury Rodent Models. BIOMED RESEARCH INTERNATIONAL 2016; 2016:3763250. [PMID: 27975052 PMCID: PMC5128699 DOI: 10.1155/2016/3763250] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Revised: 10/06/2016] [Accepted: 10/19/2016] [Indexed: 12/20/2022]
Abstract
Contrast-induced acute kidney injury (CI-AKI) can occur in 3–25% of patients receiving radiocontrast material (RCM) despite appropriate preventive measures. Often patients with an atherosclerotic vasculature have to receive large doses of RCM. Thus, animal studies to uncover the exact pathomechanism of CI-AKI are needed. Sensitive and specific histologic end-points are lacking; thus in the present review we summarize the histologic appearance of different rodent models of CI-AKI. Single injection of RCM causes overt renal damage only in rabbits. Rats and mice need an additional insult to the kidney to establish a clinically manifest CI-AKI. In this review we demonstrate that the concentrating ability of the kidney may be responsible for species differences in sensitivity to CI-AKI. The most commonly held theory about the pathomechanism of CI-AKI is tubular cell injury due to medullary hypoxia. Thus, the most common additional insult in rats and mice is some kind of ischemia. The histologic appearance is tubular epithelial cell (TEC) damage; however severe TEC damage is only seen if RCM is combined by additional ischemia. TEC vacuolization is the first sign of CI-AKI, as it is a consequence of RCM pinocytosis and lysosomal fusion; however it is not sensitive as it does not correlate with renal function and is not specific as other forms of TEC damage also cause vacuolization. In conclusion, histopathology alone is insufficient and functional parameters and molecular biomarkers are needed to closely monitor CI-AKI in rodent experiments.
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Shen J, Wang L, Jiang N, Mou S, Zhang M, Gu L, Shao X, Wang Q, Qi C, Li S, Wang W, Che X, Ni Z. NLRP3 inflammasome mediates contrast media-induced acute kidney injury by regulating cell apoptosis. Sci Rep 2016; 6:34682. [PMID: 27721494 PMCID: PMC5056378 DOI: 10.1038/srep34682] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 09/16/2016] [Indexed: 12/20/2022] Open
Abstract
Iodinated contrast media serves as a direct causative factor of acute kidney injury (AKI) and is involved in the progression of cellular dysfunction and apoptosis. Emerging evidence indicates that NLRP3 inflammasome triggers inflammation, apoptosis and tissue injury during AKI. Nevertheless, the underlying renoprotection mechanism of NLRP3 inflammasome against contrast-induced AKI (CI-AKI) was still uncertain. This study investigated the role of NLRP3 inflammasome in CI-AKI both in vitro and in vivo. In HK-2 cells and unilateral nephrectomy model, NLRP3 and NLRP3 inflammasome member ASC were significantly augmented with the treatment of contrast media. Moreover, genetic disruption of NLRP3 notably reversed contrast-induced expression of apoptosis related proteins and secretion of proinflammatory factors, similarly to the effects of ASC deletion. Consistent with above results, absence of NLRP3 in mice undergoing unilateral nephrectomy also protected against contrast media-induced renal cells phenotypic alteration and cell apoptosis via modulating expression level of apoptotic proteins. Collectively, we demonstrated that NLRP3 inflammasome mediated CI-AKI through modulating the apoptotic pathway, which provided a potential therapeutic target for the treatment of contrast media induced acute kidney injury.
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Affiliation(s)
- Jianxiao Shen
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, 1630 Dong Fang Road, Shanghai, 200127, China
| | - Ling Wang
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, 1630 Dong Fang Road, Shanghai, 200127, China
| | - Na Jiang
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, 1630 Dong Fang Road, Shanghai, 200127, China
| | - Shan Mou
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, 1630 Dong Fang Road, Shanghai, 200127, China
| | - Minfang Zhang
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, 1630 Dong Fang Road, Shanghai, 200127, China
| | - Leyi Gu
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, 1630 Dong Fang Road, Shanghai, 200127, China
| | - Xinghua Shao
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, 1630 Dong Fang Road, Shanghai, 200127, China
| | - Qin Wang
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, 1630 Dong Fang Road, Shanghai, 200127, China
| | - Chaojun Qi
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, 1630 Dong Fang Road, Shanghai, 200127, China
| | - Shu Li
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, 1630 Dong Fang Road, Shanghai, 200127, China
| | - Wanpeng Wang
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, 1630 Dong Fang Road, Shanghai, 200127, China
| | - Xiajing Che
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, 1630 Dong Fang Road, Shanghai, 200127, China
| | - Zhaohui Ni
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, 1630 Dong Fang Road, Shanghai, 200127, China
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Rowe ES, Rowe VD, Biswas S, Mosher G, Insisienmay L, Ozias MK, Gralinski MR, Hunter J, Barnett JS. Preclinical Studies of a Kidney Safe Iodinated Contrast Agent. J Neuroimaging 2016; 26:511-8. [PMID: 27171830 PMCID: PMC5084786 DOI: 10.1111/jon.12356] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 03/30/2016] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND AND PURPOSE Contrast-induced acute kidney injury (CI-AKI) is a serious complication of the use of iodinated contrast agents. This problem is particularly acute in interventional neurology and interventional cardiology, probably due to the intra-arterial route of injection, high contrast volumes, and preexisting risk factors of these patients. In an attempt to develop a contrast agent that is less damaging to the kidneys, we have studied the effects of adding a small amount of the substituted cyclodextrin, sulfobutyl-ether-β-cyclodextrin (SBECD), to iohexol in rodent models of renal toxicity. METHODS Renally compromised mice and rats were injected with iohexol and iohexol-SBECD via the tail vein. The renal pathology, creatinine clearance, and survival benefits of iohexol-SBECD were studied. The safety of direct intra-arterial injection of the iohexol-SBECD formulation was studied in a dog heart model system. Mechanism of action studies in cell culture model using a human kidney cell line was performed using flow cytometry. RESULTS Nephrotoxicity was significantly reduced using iohexol-SBECD compared to iohexol alone, at mole ratios of iohexol:SBECD of 1:0.025. SBECD increased survival from 50% to 88% in a rat survival study. In the dog heart model, iohexol-SBECD was safe. Cell culture studies suggest that SBECD interferes with the early stages of contrast-induced apoptosis in a human renal cell line. CONCLUSION We have shown that the addition of a small amount of SBECD (one molecule of SBECD per 40 iohexol molecules) significantly protects rodent kidneys from CI-AKI. Further development of this new formulation of iodinated contrast is warranted.
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CHADS2 score predicts risk of contrast-induced nephropathy in stable coronary artery disease patients undergoing percutaneous coronary interventions. J Formos Med Assoc 2016; 115:501-9. [PMID: 26830105 DOI: 10.1016/j.jfma.2015.12.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Revised: 12/03/2015] [Accepted: 12/10/2015] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND/PURPOSE To investigate the correlation between the CHADS2 score and risk of contrast-induced nephropathy (CIN), we conducted a retrospective study in patients who underwent elective percutaneous coronary intervention (PCI) and compared its accuracy with previous scoring systems. METHODS A total of 539 patients who underwent elective PCI were enrolled. Based on their underlying diseases, such as hypertension, diabetes, and kidney disease, CHADS2 score, R2CHADS2 score, and Mehran's risk score were calculated for each patient. Incidence of CIN was defined as a rise in serum creatinine >0.5 mg/dL or >25% increase in baseline within 48 hours after PCI. All study participants were followed up until October 2014, or until the occurrence of major adverse cardiovascular events (MACEs). RESULTS Overall, 55 cases (10.2%) of CIN and 90 cases (16.7%) of MACEs were identified after participants were followed up for 1.57 ± 1.46 years. The study cohort was divided into three groups according to CHADS2 scores: score 0, score 1-2, and score 3-6. In multivariate analysis, an increase of 1 point in the CHADS2 score was independently associated with a 37% increase in the risk of CIN (odds ratio, 1.37; 95% confidence interval, 1.00-1.87; p = 0.048) and a 49% increase in MACEs (hazard ratio, 1.49; 95% confidence interval, 1.18-1.88, p = 0.001). In pairwise comparison, the discriminatory performance of CHADS2 score was not inferior to either R2CHADS2 score (p = 0.226) or Mehran's risk score (p = 0.075). CONCLUSION CHADS2 score could be a simple and useful predictor for CIN in patients undergoing elective PCI.
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Abstract
Contrast-induced acute kidney injury (CI-AKI) is characterised by a rapid deterioration of renal function within a few days of parenteral administration of contrast media (CM) in the absence of alternative causes. CI-AKI is the most common form of iatrogenic kidney dysfunction with an estimated prevalence of 12 % in patients undergoing percutaneous coronary intervention. Although usually self-resolving, in patients with pre-existing chronic kidney disease (CKD) or concomitant risk factors for renal damage, CI-AKI is associated with increased short-and long-term morbidity and mortality. Therefore, risk stratification based on clinical and peri-procedural characteristics is crucial in selecting patients at risk of CI-AKI who would benefit the most from implementation of preventive measures.
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Affiliation(s)
- Michela Faggioni
- Interventional Cardiovascular Research and Clinical Trials, The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York City, NY, USA.,Cardiac Thoracic and Vascular Department, Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy
| | - Roxana Mehran
- Interventional Cardiovascular Research and Clinical Trials, The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York City, NY, USA
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Wong PCY, Guo J, Zhang A. A hypothesis on the conflicting results of angiotensin converting enzyme inhibitor in the prevention of contrast-induced nephropathy. Med Hypotheses 2015; 85:874-7. [PMID: 26432630 DOI: 10.1016/j.mehy.2015.09.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Revised: 09/15/2015] [Accepted: 09/20/2015] [Indexed: 11/28/2022]
Abstract
Contrast-induced nephropathy (CIN) is regarded as acute tubular necrosis resulting from the cytotoxicity of contrast media and the medullary hypoxia linking to the interplay of vasoconstriction and vasodilatation. Saline infusion may prevent CIN by inhibiting renin release and thus production of angiotensin II (ANG II), a vasoconstrictor, from angiotensin I (ANG I). Yet the use of angiotensin converting enzyme inhibitor (ACEI) yields conflicting results in the prevention of CIN. We hypothesise that ACEI will be useful for CIN prevention when the saline infusion is insufficient, useless when the saline infusion is sufficient, and counterproductive when the saline infusion is excessive, respectively. When the production of ANG I and thus ANG II is insufficiently inhibited by insufficient saline infusion, ACEI may help prevent CIN by conferring extra inhibition on the production of ANG II from ANG I. The counterproductive effect may result from ACEI blocking the generation of angiotensin 1-7, a potent vasodilator, from angiotensin 1-9 whose precursor, ANG I, is excessively diminished by excessive saline infusion. Clinical data suggest that normal saline infusion at a rate of 1 ml/kg/h for 12 h, 1 ml/kg/h for 6 h, and 2 ml/kg/h for 6 h before and after contrast injection provide sufficient, insufficient, and excessive hydration in the prevention of CIN, respectively. The mainstream guideline is to stop ACEI and provide sufficient hydration for CIN prevention. Alternatively one may continue to have ACEI but the use of normal saline infusion must be limited to 1 ml/kg/h for 6 h before and after contrast injection.
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Affiliation(s)
- Philip Ching Yat Wong
- Department of Cardiology, First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Jun Guo
- Department of Cardiology, First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Aidong Zhang
- Department of Cardiology, First Affiliated Hospital of Jinan University, Guangzhou, China.
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Jiao Z, Chen J, Liu Y, Liu T, Chen K, Li G. Role of ERK1/2 and JNK phosphorylation in iodine contrast agent-induced apoptosis in diabetic rat kidneys. Ren Fail 2015; 37:1349-55. [PMID: 26399978 DOI: 10.3109/0886022x.2015.1068031] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Luchi WM, Shimizu MHM, Canale D, Gois PHF, de Bragança AC, Volpini RA, Girardi ACC, Seguro AC. Vitamin D deficiency is a potential risk factor for contrast-induced nephropathy. Am J Physiol Regul Integr Comp Physiol 2015; 309:R215-22. [PMID: 26041113 DOI: 10.1152/ajpregu.00526.2014] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Accepted: 05/28/2015] [Indexed: 11/22/2022]
Abstract
Vitamin D deficiency (VDD) is widespread in the general population. Iodinated (IC) or gadolinium-based contrast media (Gd) may decrease renal function in high-risk patients. This study tested the hypothesis that VDD is a predisposing factor for IC- or Gd-induced nephrotoxicity. To this end, male Wistar rats were fed standard (SD) or vitamin D-free diet for 30 days. IC (diatrizoate), Gd (gadoterate meglumine), or 0.9% saline was then administered intravenously and six groups were obtained as the following: SD plus 0.9% saline (Sham-SD), SD plus IC (SD+IC), SD plus Gd (SD+Gd), vitamin D-free diet for 30 days plus 0.9% saline (Sham-VDD30), vitamin D-free diet for 30 days plus IC (VDD30+IC), and vitamin D-free diet for 30 days plus Gd (VDD30+Gd). Renal hemodynamics, redox status, histological, and immunoblot analysis were evaluated 48 h after contrast media (CM) or vehicle infusion. VDD rats showed lower levels of total serum 25-hydroxyvitamin D [25(OH)D], similar plasma calcium and phosphorus concentration, and higher renal renin and angiotensinogen protein expression compared with rats fed SD. IC or Gd infusion did not affect inulin clearance-based estimated glomerular filtration rate (GFR) in rats fed SD but significantly decreased GFR in rats fed vitamin D-free diet. Both CM increased renal angiotensinogen, and the interaction between VDD and CM triggered lower renal endothelial nitric oxide synthase abundance and higher renal thiobarbituric acid reactive substances-to-glutathione ratio (an index of oxidative stress) on VDD30+IC and VDD30+Gd groups. Conversely, worsening of renal function was not accompanied by abnormalities on kidney structure. Additionally, rats on a VDD for 60 days displayed a greater fall in GFR after CM administration. Collectively, our findings suggest that VDD is a potential risk factor for IC- or Gd-induced nephrotoxicity most likely due to imbalance in intrarenal vasoactive substances and oxidative stress.
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Affiliation(s)
- Weverton M Luchi
- Medical Investigation Laboratory 12, Division of Nephrology, University of São Paulo Medical School, São Paulo, Brazil; Division of Nephrology, Federal University of Espírito Santo, Vitória, Brazil; and
| | - Maria Heloisa M Shimizu
- Medical Investigation Laboratory 12, Division of Nephrology, University of São Paulo Medical School, São Paulo, Brazil
| | - Daniele Canale
- Medical Investigation Laboratory 12, Division of Nephrology, University of São Paulo Medical School, São Paulo, Brazil
| | - Pedro Henrique F Gois
- Medical Investigation Laboratory 12, Division of Nephrology, University of São Paulo Medical School, São Paulo, Brazil
| | - Ana Carolina de Bragança
- Medical Investigation Laboratory 12, Division of Nephrology, University of São Paulo Medical School, São Paulo, Brazil
| | - Rildo A Volpini
- Medical Investigation Laboratory 12, Division of Nephrology, University of São Paulo Medical School, São Paulo, Brazil
| | - Adriana C C Girardi
- Laboratory of Genetics and Molecular Cardiology, Heart Institute, University of São Paulo Medical School, São Paulo, Brazil
| | - Antonio C Seguro
- Medical Investigation Laboratory 12, Division of Nephrology, University of São Paulo Medical School, São Paulo, Brazil
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Prevention of contrast-induced nephropathy through a knowledge of its pathogenesis and risk factors. ScientificWorldJournal 2014; 2014:823169. [PMID: 25525625 PMCID: PMC4266998 DOI: 10.1155/2014/823169] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2014] [Accepted: 09/30/2014] [Indexed: 12/13/2022] Open
Abstract
Contrast-induced nephropathy (CIN) is an iatrogenic acute renal failure (ARF) occurring after the intravascular injection of iodinated radiographic contrast media. During the past several years, in many patients undergoing computed tomography, iodinated contrast media have not been used for the fear of ARF, thereby compromising the diagnostic procedure. But recent studies have demonstrated that CIN is rarely occurring in patients with normal renal function and that preexisting chronic renal failure and/or diabetes mellitus represent(s) predisposing condition(s) for its occurrence. After the description of CIN and its epidemiology and pathophysiology, underlying the important role played by dehydration and salt depletion, precautions for prevention of CIN are listed, suggested, and discussed. Maximum priority has to be given to adequate hydration and volume expansion prior to radiographic procedures. Other important precautions include the need for monitoring renal function before, during, and after contrast media injection, discontinuation of potentially nephrotoxic drugs, use of either iodixanol or iopamidol at the lowest dosage possible, and administration of antioxidants. A long list of references is provided that will enable readers a deep evaluation of the topic.
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Andreucci M, Faga T, Pisani A, Sabbatini M, Michael A. Acute kidney injury by radiographic contrast media: pathogenesis and prevention. BIOMED RESEARCH INTERNATIONAL 2014; 2014:362725. [PMID: 25197639 PMCID: PMC4150431 DOI: 10.1155/2014/362725] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Accepted: 07/07/2014] [Indexed: 12/14/2022]
Abstract
It is well known that iodinated radiographic contrast media may cause kidney dysfunction, particularly in patients with preexisting renal impairment associated with diabetes. This dysfunction, when severe, will cause acute renal failure (ARF). We may define contrast-induced Acute Kidney Injury (AKI) as ARF occurring within 24-72 hrs after the intravascular injection of iodinated radiographic contrast media that cannot be attributed to other causes. The mechanisms underlying contrast media nephrotoxicity have not been fully elucidated and may be due to several factors, including renal ischaemia, particularly in the renal medulla, the formation of reactive oxygen species (ROS), reduction of nitric oxide (NO) production, and tubular epithelial and vascular endothelial injury. However, contrast-induced AKI can be prevented, but in order to do so, we need to know the risk factors. We have reviewed the risk factors for contrast-induced AKI and measures for its prevention, providing a long list of references enabling readers to deeply evaluate them both.
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Affiliation(s)
- Michele Andreucci
- Nephrology Unit, Department of Health Sciences, “Magna Graecia” University, Campus “Salvatore Venuta”, Viale Europa, Località Germaneto, 88100 Catanzaro, Italy
| | - Teresa Faga
- Nephrology Unit, Department of Health Sciences, “Magna Graecia” University, Campus “Salvatore Venuta”, Viale Europa, Località Germaneto, 88100 Catanzaro, Italy
| | - Antonio Pisani
- Nephology Unit, Department of Public Health, “Federico II” University, Via Pansini no. 5, 80131 Naples, Italy
| | - Massimo Sabbatini
- Nephology Unit, Department of Public Health, “Federico II” University, Via Pansini no. 5, 80131 Naples, Italy
| | - Ashour Michael
- Nephrology Unit, Department of Health Sciences, “Magna Graecia” University, Campus “Salvatore Venuta”, Viale Europa, Località Germaneto, 88100 Catanzaro, Italy
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Andreucci M, Faga T, Russo D, Bertucci B, Tamburrini O, Pisani A, Sabbatini M, Fuiano G, Michael A. Differential activation of signaling pathways by low-osmolar and iso-osmolar radiocontrast agents in human renal tubular cells. J Cell Biochem 2014; 115:281-9. [PMID: 24023012 DOI: 10.1002/jcb.24662] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Accepted: 08/19/2013] [Indexed: 11/10/2022]
Abstract
Radiocontrast media (RCM)-induced nephrotoxicity (CIN) is a major clinical problem accounting for 12% of all hospital-acquired cases of acute kidney injury (AKI). The pathophysiology of AKI due to RCM is not well understood, but direct toxic effects on renal cells have been postulated as contributing to CIN. It is believed that iso-osmolar RCM (IOCM) are less nephrotoxic than low-osmolar RCM (LOCM) but clinical data have been controversial. We have investigated the intracellular signaling pathways that may be affected by the LOCM iomeprol (IOM) and the IOCM iodixanol (IOD). Both IOM and IOD caused a dramatic decrease in phosphorylation of the kinase Akt at Ser473 and Thr308 in human renal tubular (HK-2) cells, with IOM having a greater effect; IOM also caused a greater decrease in cell viability. IOM also had a greater effect on phosphorylation of p38 MAP kinases, JNKs, and NF-kB (Ser276), and caused a marked decrease in the phosphorylation of forkhead box O3a (FOXO3a) and signal transducer and activator of transcription 3 (STAT3). However, IOD caused a greater decrease in the phosphorylation of mTOR (Ser2448) and phospho-ERK 1/2 while both RCM caused a similar decrease in the phosphorylation of phospho-p70S6 kinase (Ser371). In vivo studies showed that both IOM and IOD caused a significant decrease in both pAkt (Ser473) and pERK 1/2 in rat kidneys. Our study gives an insight into the possible mechanism of toxicity of RCM via their action on intracellular signaling pathways and may help in developing pharmacological interventions for their side-effects.
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Affiliation(s)
- Michele Andreucci
- Chair of Nephrology, Department of Health Sciences, "Magna Graecia" University, Catanzaro, I-88100, Italy
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Andreucci M. Side effects of radiographic contrast media. BIOMED RESEARCH INTERNATIONAL 2014; 2014:872574. [PMID: 24991572 PMCID: PMC4060789 DOI: 10.1155/2014/872574] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/04/2014] [Accepted: 05/04/2014] [Indexed: 11/17/2022]
Affiliation(s)
- Michele Andreucci
- Department of Health Sciences, Magna Graecia University, Campus Salvatore Venuta, Viale Europa, Località Germaneto, 88100 Catanzaro, Italy
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Andreucci M, Solomon R, Tasanarong A. Side effects of radiographic contrast media: pathogenesis, risk factors, and prevention. BIOMED RESEARCH INTERNATIONAL 2014; 2014:741018. [PMID: 24895606 PMCID: PMC4034507 DOI: 10.1155/2014/741018] [Citation(s) in RCA: 113] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Accepted: 03/03/2014] [Indexed: 12/18/2022]
Abstract
Radiocontrast media (RCM) are medical drugs used to improve the visibility of internal organs and structures in X-ray based imaging techniques. They may have side effects ranging from itching to a life-threatening emergency, known as contrast-induced nephropathy (CIN). We define CIN as acute renal failure occurring within 24-72 hrs of exposure to RCM that cannot be attributed to other causes. It usually occurs in patients with preexisting renal impairment and diabetes. The mechanisms underlying CIN include reduction in medullary blood flow leading to hypoxia and direct tubule cell damage and the formation of reactive oxygen species. Identification of patients at high risk for CIN is important. We have reviewed the risk factors and procedures for prevention, providing a long list of references enabling readers a deep evaluation of them both. The first rule to follow in patients at risk of CIN undergoing radiographic procedure is monitoring renal function by measuring serum creatinine and calculating the eGFR before and once daily for 5 days after the procedure. It is advised to discontinue potentially nephrotoxic medications, to choose radiocontrast media at lowest dosage, and to encourage oral or intravenous hydration. In high-risk patients N-acetylcysteine may also be given.
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Affiliation(s)
- Michele Andreucci
- Nephrology Unit, Department of “Health Sciences”, Campus “Salvatore Venuta”, “Magna Graecia” University, Loc. Germaneto, 88100 Catanzaro, Italy
| | - Richard Solomon
- University of Vermont College of Medicine, Fletcher Allen Health Care, Burlington, VT, USA
| | - Adis Tasanarong
- Nephrology Unit, Department of Medicine, Faculty of Medicine, Thammasat University, Rangsit Campus, Khlong Luang, Pathum Thani 12121, Thailand
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Michael A, Faga T, Pisani A, Riccio E, Bramanti P, Sabbatini M, Navarra M, Andreucci M. Molecular mechanisms of renal cellular nephrotoxicity due to radiocontrast media. BIOMED RESEARCH INTERNATIONAL 2014; 2014:249810. [PMID: 24745009 PMCID: PMC3976916 DOI: 10.1155/2014/249810] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Revised: 12/09/2013] [Accepted: 12/24/2013] [Indexed: 11/29/2022]
Abstract
Modern iodinated radiocontrast media are all based on the triiodinated benzene ring with various chemical modifications having been made over the last few decades in order to reduce their toxicity. However, CIN remains a problem especially in patients with pre-existing renal failure. In vitro studies have demonstrated that all RCM are cytotoxic. RCM administration in vivo may lead to a decrease in renal medullary oxygenation leading to the generation of reactive oxygen species that may cause harmful effects to renal tissue. In addition, endothelin and adenosine release and decreased nitric oxide levels may worsen the hypoxic milieu. In vitro cell culture studies together with sparse in vivo rat model data have shown that important cell signalling pathways are affected by RCM. In particular, the prosurvival and proproliferative kinases Akt and ERK1/2 have been shown to be dephosphorylated (deactivated), whilst proinflammatory/cell death molecules such as the p38 and JNK kinases and the transcription factor NF- κ B may be activated by RCM, accompanied by activation of apoptotic mediators such as caspases. Increasing our knowledge of the mechanisms of RCM action may help to develop future therapies for CIN.
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Affiliation(s)
- Ashour Michael
- Department of Health Sciences, Nephrology Unit, “Magna Graecia” University, I-88100 Catanzaro, Italy
| | - Teresa Faga
- Department of Health Sciences, Nephrology Unit, “Magna Graecia” University, I-88100 Catanzaro, Italy
| | - Antonio Pisani
- Department of Nephrology, “Federico II” University, I-80131 Naples, Italy
| | - Eleonora Riccio
- Department of Nephrology, “Federico II” University, I-80131 Naples, Italy
| | | | - Massimo Sabbatini
- Department of Nephrology, “Federico II” University, I-80131 Naples, Italy
| | - Michele Navarra
- Department of Drug Sciences and Health Products, University of Messina, I-98168 Messina, Italy
| | - Michele Andreucci
- Department of Health Sciences, Nephrology Unit, “Magna Graecia” University, I-88100 Catanzaro, Italy
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Yao L, Kolluru GK, Kevil CG, Zhang WW. Intravascular radiocontrast iodixanol increases permeability of proximal tubule epithelium: a possible mechanism of contrast-induced nephropathy. Vasc Endovascular Surg 2013; 47:632-8. [PMID: 24005192 DOI: 10.1177/1538574413503560] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
PURPOSE To investigate the effect of Iodixanol on kidney proximal tubular cell line human kidney 2 (HK-2). METHODS The HK-2 cells were treated with Iodixanol. A Terminal deoxynucleotidyl transferase dUTP nick-end labeling (TUNEL) assay was used to evaluate apoptosis. Cell viability was measured by proliferation assay kit. Cell permeability changes were assessed by transwell assay and intercellular gaps measurement. Expression of claudin-2 was assessed by quantitative reverse transcriptase-polymerase chain reaction (qRT-PCR) and Western blot. RESULTS Iodixanol reduced tubule cell viability (P < .01) but did not cause apoptosis. The intercellular gap formation (P < .01) and transwell (P < .05) assays revealed that cell permeability significantly increased after Iodixanol treatment of monolayer cells. Western blot and qRT-PCR showed significant upregulation of claudin-2 protein (P < .05) and messenger RNA expression (P < .01). CONCLUSIONS Our in vitro data do not support the hypothesis that direct kidney cell death from Iodixanol is a major mechanism of contrast-induced nephropathy (CIN). However, increased permeability of proximal tubule epithelium caused by Iodixanol may play an important role in CIN.
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Affiliation(s)
- Luyu Yao
- 1Department of Surgery, Louisiana State University Health Sciences Center, Shreveport, LA, USA
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Gong X, Wang Q, Tang X, Wang Y, Fu D, Lu H, Wang G, Norgren S. Tetramethylpyrazine prevents contrast-induced nephropathy by inhibiting p38 MAPK and FoxO1 signaling pathways. Am J Nephrol 2013; 37:199-207. [PMID: 23446291 DOI: 10.1159/000347033] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2012] [Accepted: 01/11/2013] [Indexed: 01/16/2023]
Abstract
BACKGROUND Apoptosis is recognized as an important mechanism in contrast-induced nephropathy (CIN). As tetramethylpyrazine (TMP) has been recently found to be renoprotective and anti-apoptotic in multiple kidney injuries, we hypothesized that TMP would prevent CIN. METHODS An experimental model of CIN was established in rats. Serum creatinine, blood urea nitrogen, plasma cystatin C, urinary N-acetyl-β-glucosaminidase, and urinary γ-glutamyl transpeptidase were measured to evaluate kidney function. Apoptosis was assessed by transmission electron microscopy, transferase-mediated deoxyuridine triphosphate nick end-labeling staining, and poly-ADP-ribose polymerase cleavage. Fork-head box O1 transcriptional factor (FoxO1) mRNA expression was evaluated by quantitative real-time PCR. Phospho-p38 mitogen-activated protein kinase (MAPK) protein expression was assessed by immunohistochemistry and Western blotting. RESULTS TMP significantly attenuated the resulting renal dysfunction and renal tubular cell apo-ptosis. Mechanistically, TMP decreased the expression of phospho-p38 MAPK protein and attenuated the increased FoxO1 mRNA and nuclear protein expression. In addition, TMP inhibited inducible nitric oxide synthase and Bax protein expression while it upregulated Bcl-2. CONCLUSION In summary, this study demonstrated the protective role of TMP against CIN and indicated the effects of TMP may be mediated by the inhibition of p38 MAPK and FoxO1 pathways. Thus, TMP may be a new potential therapeutic agent to prevent CIN.
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Affiliation(s)
- Xuezhong Gong
- Division of Nephrolog, Shanghai Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
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Ludwig U, Connemann J, Keller F. Effect of low-osmolar contrast medium iopromide and iso-osmolar iodixanol on DNA fragmentation in renal tubular cell culture. Clin Exp Nephrol 2013; 17:779-82. [PMID: 23345070 DOI: 10.1007/s10157-013-0774-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2012] [Accepted: 01/09/2013] [Indexed: 11/30/2022]
Abstract
BACKGROUND Intravascular administration of iodinated contrast media continues to be a common cause of hospital-acquired acute kidney injury. Accumulating evidence suggests that radiocontrast agent-induced nephrotoxicity is associated with increased oxidative stress, which leads to renal tissue damage with DNA fragmentation. We therefore tested whether an iso-osmolar contrast medium (iodixanol) causes less oxidative DNA damage to renal tubular cells than a low-osmolar contrast medium (iopromide). METHODS HK-2 cells (human proximal renal tubular cell line) were incubated at different time points (10 min-2 h) with increasing concentrations (20-120 mg/ml iodine) of iodixanol or of iopromide. Oxidative DNA damage to renal tubular cells was measured by alkaline comet assay (single-cell gel electrophoresis). RESULTS Both iso- and low-osmolar contrast agents induced time- and concentration-dependent DNA fragmentation. DNA fragmentation was maximal at 2 h with 120 mg/ml iodine for iopromide (32 ± 27 tail moments) and iodixanol (46 ± 41 tail moments); both were significantly different from the control value with 3.15 ± 1.6 tail moments (Student's t test; p < 0.001). After 1 and 2 h and for all concentrations, iodixanol produced significantly higher DNA fragmentation than iopromide (ANOVA for 1 h p = 0.039 and 2 h p = 0.025, respectively). CONCLUSION We were able to demonstrate for the first time that an iso-osmolar contrast medium induced even greater oxidative stress and DNA damage than a low-osmolar agent in HK-2 cells. This could provide an explanation for the nephrotoxicity that also is observed with iodixanol in clinical practice.
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Affiliation(s)
- Ulla Ludwig
- Division of Nephrology, Internal Medicine I, University of Ulm, Albert-Einstein Allee 23, 89081, Ulm, Germany,
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Wong PCY, Li Z, Guo J, Zhang A. Pathophysiology of contrast-induced nephropathy. Int J Cardiol 2012; 158:186-92. [DOI: 10.1016/j.ijcard.2011.06.115] [Citation(s) in RCA: 129] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2011] [Revised: 06/10/2011] [Accepted: 06/25/2011] [Indexed: 12/31/2022]
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Gruber HE, Rhyne AL, Hansen KJ, Phillips RC, Hoelscher GL, Ingram JA, Norton HJ, Hanley EN. Deleterious effects of discography radiocontrast solution on human annulus cell in vitro: changes in cell viability, proliferation, and apoptosis in exposed cells. Spine J 2012; 12:329-35. [PMID: 22424848 DOI: 10.1016/j.spinee.2012.02.003] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2011] [Revised: 11/18/2011] [Accepted: 02/07/2012] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT Carragee et al. have recently shown that modern discography injections are associated with subsequent acceleration of disc degeneration, herniation, and loss of disc height. Although needle puncture and pressurization are known trauma events that can create disc degeneration in animal models, another likely culprit in clinical discography-associated degeneration is a direct effect of the contrast agent itself on disc cells. PURPOSE To test the hypothesis that discography contrast solution would have a deleterious effect on human annulus cells in vitro. STUDY DESIGN An in vitro study using cultured human annulus cells to assay cell death, cell proliferation, and apoptosis. PATIENT SAMPLE Annulus cells from eight surgical disc specimens were evaluated (two Thompson Grade III discs and six Grade IV discs) for cell death and proliferation, and an additional five cultures were tested for apoptosis. OUTCOME MEASURES The proportion of dead and live cells, cell proliferation, and the proportion of apoptotic cells in control and experimental groups. METHODS After internal review board approval, experimental design used two sets of controls: untreated cells under our normal culture conditions (control) and a set with added glucose to adjust the osmolality to match respective Isovue radiocontrast solution treatments (glucose controls) using a freezing point osmometer. Treated cells received Isovue 200 (iopamidol, Isovue-M 200; Bracco Diagnostics, Inc., Princeton, NJ, USA) at 12.5, 25, 50, or 100 mg/mL. Twenty thousand cells/well were seeded in triplicate in 24 well plates, control or test media added, and incubated for 24 hours. At termination, dead cells were identified with trypan blue staining and percentage dead cells determined. Cells were also tested to determine the percentage of apoptotic cells after 50 or 100 mg/mL Isovue exposures. Proliferation assays used standard plate reader methods. Statistical analysis used repeated measures analysis of variance with SAS software (version 9.2; SAS Institute, Inc., Cary, NC, USA). RESULTS Analysis of cell death showed a significant increase in the percentage of dead cells with increasing Isovue concentrations compared with control cells (p=.018-.0008). Cell proliferation analyses showed significantly reduced division in Isovue-treated cells (p=.004), and apoptosis assays revealed a significantly higher proportion of apoptotic cells in cells exposed to 50 and 100 mg/mL Isovue (p=.016 and .0003, respectively). CONCLUSIONS Discography is used extensively in the evaluation of low back pain. Because the lifetime prevalence of disc degeneration and low back pain is high (80% in the general population), many patients may undergo this procedure. Data presented here show that cells exposed in vitro to a radiocontrast agent with adjustments for osmolality have significantly reduced proliferation, increased cell death, and increased programmed cell death (apoptosis). In light of the well-recognized age- and degeneration-related decrease in disc cell numbers, it is possible that radiocontrast exposure may be contributing significantly to disc cell loss with subsequent progression of disc degeneration. Findings presented here provide a plausible cell-based explanation for the previously reported disc degeneration in patients receiving discography contrast solutions.
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Affiliation(s)
- Helen E Gruber
- Department of Orthopaedic Surgery, Orthopaedic Research Biology, Cannon Research, Room 304, Carolinas Medical Center, PO Box 32861, Charlotte, NC 28232, USA.
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Wang J, Zhang Y, Yang X, Wang X, Zhang J, Fang J, Jiang X. Time course study on the effects of iodinated contrast medium on intrarenal water transport function using diffusion-weighted MRI. J Magn Reson Imaging 2012; 35:1139-44. [DOI: 10.1002/jmri.23511] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2011] [Accepted: 10/24/2011] [Indexed: 11/11/2022] Open
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Jensen H, Doughty RW, Grant D, Myhre O. The effects of the iodinated X-ray contrast media iodixanol, iohexol, iopromide, and ioversol on the rat kidney epithelial cell line NRK 52-E. Ren Fail 2011; 33:426-33. [PMID: 21529272 DOI: 10.3109/0886022x.2011.568146] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Nephrotoxicity, associated with the administration of iodinated X-ray contrast media (ICM), continues to be a major side effect in a significant number of vulnerable patients undergoing diagnostic X-ray imaging procedures. The molecular mechanisms underlying these adverse effects on the kidneys are unclear despite several decades of investigation. Side effects are more common after exposure to high-osmolar compared with low-osmolar ICM, suggesting that osmolality may be an important physical-chemical property related to nephrotoxicity. This investigation in cultured NRK 52-E cells, a cell line of renal origin, compares the in vitro toxicity of the iso-osmolal ICM iodixanol with the low-osmolal ICM iohexol, iopromide, and ioversol. The cellular toxicity was evaluated with the trypan blue exclusion assay, the MTT assay, and incidences of cell death. A qualitative assessment of vacuolation of the cultured NRK 52-E cells was taken as a measure of intracellular uptake of ICM. A difference in cell death incidence was observed between the iso-osmolal iodixanol and the low-osmolal iohexol, iopromide, and ioversol contrast media, with the iso-osmolal iodixanol having the least effect in each of the in vitro systems tested. The osmolality of the contrast media appeared to be the major cause for the observed in vitro toxicity.
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Affiliation(s)
- Hanne Jensen
- Research Biology, GE Healthcare AS, Oslo, Norway.
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Abstract
1. The present review focuses on the cytotoxic effects of iodinated contrast media (CM) that are shared by all types of CM. 2. Although the clinical nephrotoxicity of CM has been progressively improved, all currently available CM still possess a level of cytotoxicity, which is probably caused by iodine. 3. The toxicity caused by specific CM properties, such as osmolarity, viscosity and ionic strength, can be differentiated from the cytotoxicity common to all CM in studies using cell culture, isolated blood vessels and isolated tubules. 4. The cytotoxicity induced by CM leads to apoptosis and cell death of endothelial and tubular cells and may be initiated by cell membrane damage, together with oxidative stress. 5. Cell damage may be aggravated by factors such as tissue hypoperfusion and hypoxia, properties of individual CM, such as ionic strength, high osmolarity and/or viscosity, and clinically unfavourable conditions. 6. Clinically detectable renal failure may result from the summation of all these factors.
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Affiliation(s)
- Mauricio M Sendeski
- Institute of Vegetative Physiology, Charité Medical University, Berlin, Germany.
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Li X, Li T, Cong H. Is angiotensin-converting enzyme inhibitor a contraindication for contrast-induced nephropathy prophylaxis? A review about its paradox. Cardiovasc Ther 2011; 30:273-6. [PMID: 21884031 DOI: 10.1111/j.1755-5922.2011.00299.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Contrast-induced nephropathy (CIN) is reported to be the third leading cause of acute renal failure. The role of angiotensin-converting enzyme (ACE) inhibitors in CIN is controversial. Some studies pointed out that it was effective in the prevention of CIN, while some concluded that it was associated with increased risk of CIN, especially for patients with preexisting renal impairment. Nevertheless, it is a common practice in many centers to prescribe ACE inhibitors before coronary angiography. The most likely mechanisms leading to CIN are medullary hypoxia due to decreased renal blood flow (RBF) secondary to renal artery vasoconstriction and direct tubular toxicity by contrast medium (CM). Furthermore, experimental data suggest that an activated renin-angiotensin-aldosterone system, increased endothelin-1, and reactive oxygen species play a role in the pathogenesis of CIN and these can be inhibited by using ACE inhibitors. In this context, we review the medical literatures and discuss the pathogenesis, the role of renin-angiotensin-aldosterone system on the development of CIN and ACE inhibitors' effect on CIN.
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Affiliation(s)
- Ximing Li
- Department of Cardiology, Tianjin Chest Hospital, Tianjin Medical University, Tianjin, China
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de Bie MK, van Rees JB, Herzog CA, Rabelink TJ, Schalij MJ, Jukema JW. How to reduce the incidence of contrast induced acute kidney injury after cardiac invasive procedures, a review and practical recommendations. Curr Med Res Opin 2011; 27:1347-57. [PMID: 21561396 DOI: 10.1185/03007995.2011.580732] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND Contrast induced acute kidney injury is an important complication after cardiac (invasive) procedures and is associated with substantial morbidity and mortality. The aim of the current article is to provide a comprehensive overview of the current knowledge regarding contrast induced acute kidney injury. METHODS Current literature was reviewed and relevant articles were selected. Articles were identified through MEDLINE and Pubmed selecting articles, limited between 1980 and 2010. RESULTS The pathophysiological process resulting in contrast induced acute kidney injury is not completely understood, nevertheless several mechanisms involved have been proposed. However, the risk factors for contrast induced acute kidney injury and its timing are well known, making it amenable for preventive strategies. In the past decade various preventive strategies have been investigated with different results. CONCLUSIONS Currently, only adequate hydration, with saline, is uniformly accepted as a beneficial prophylactic strategy. Furthermore promising results have also been reported for several other prophylactic strategies. These results, however, need to be confirmed in future trials.
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Affiliation(s)
- Mihály K de Bie
- Department of Cardiology, Leiden University Medical Center, the Netherlands
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