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Ishii S, Sugawara S, Tanaka Y, Kawamoto N, Hara J, Yamakuni R, Suenaga H, Fukushima K, Ito H. Impact of iodine contrast media on gamma camera-based GFR and factors affecting the difference between serum creatinine-based estimated GFR and Gate's GFR. Nucl Med Commun 2024; 45:573-580. [PMID: 38618748 DOI: 10.1097/mnm.0000000000001848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
OBJECTIVE We aimed to elucidate the factors underlying the difference between estimated glomerular filtration rate (eGFR) calculated from serum creatinine and Gate's GFR (gGFR) measured using technetium-99m diethylene triamine pentaacetic acid ( 99m Tc-DTPA) scintigraphy. METHODS This study was based on consecutive patients who underwent 99m Tc-DTPA scintigraphy at our hospital between January 2021 and December 2022 and whose blood serum creatinine data were obtained on the same day as the 99m Tc-DTPA scintigraphy. Relationships between the ratio of gGFR and eGFR (gGFR/eGFR) and age, sex, BMI, visceral fat, psoas muscle index (PMI), serum blood urea nitrogen, and creatinine level were investigated based on 75 patients. Additionally, for 44 patients who had two or more follow-up DTPA studies, we compared gGFR values for studies that used iodine contrast media (ICM) for computed tomography before same-day 99m Tc-DTPA studies and those that did not in the same patients. RESULTS Weak correlations were observed between gGFR/eGFR and PMI ( r = 0.30), BMI ( r = 0.24), and the visceral fat area ( r = 0.33). Multi-regression analyses showed that gGFR/eGFR was correlated with PMI ( β = 0.34, P < 0.01) and approached significance with the visceral fat area ( β = 0.24, P = 0.05). A significant difference was observed in gGFR between patients who received ICM before the 99m Tc-DTPA renogram and those who did not ( P < 0.001, eGFR 80.5 ± 19.0 vs. 91.7 ± 27.8 ml/min). CONCLUSION ICM administration temporarily decreased gGFR, and increased muscle mass increased the difference between eGFR and gGFR values.
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Affiliation(s)
- Shiro Ishii
- Department of Radiology, Fukushima Medical University, Fukushima, Japan
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2
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Zhao J, Tang MH, Shen QH, Xu DC. The effectiveness of dexmedetomidine for preventing acute kidney injury after surgery: a systematic review and meta-analysis. Front Med (Lausanne) 2024; 11:1414794. [PMID: 38854666 PMCID: PMC11157052 DOI: 10.3389/fmed.2024.1414794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 05/14/2024] [Indexed: 06/11/2024] Open
Abstract
Background Postoperative acute kidney injury (AKI) is a serious and distressing complication connected to various adverse outcomes following the surgical operation. Controversy remains regarding the dexmedetomidine's preventive impact on postoperative AKI. Therefore, this investigation aims to explore the efficiency and safety of dexmedetomidine in preventing AKI after surgical operation. Methods We systematically searched electronic databases such as PubMed, Embase, Web of Science, and the Cochrane Library to detect eligible randomized controlled studies that used dexmedetomidine for the prevention of AKI following operation up to April 30, 2023. The main outcome evaluated was AKI incidence. The evidence quality was assessed employing the Grading of Recommendations Assessment, Development, and Evaluation. Results The meta-analysis included 25 trials, including 3,997 individuals. Of these, 2,028 were in the dexmedetomidine group, and 1,969 were in the control group. The result showed that patients administered dexmedetomidine significantly decreased the AKI incidence following surgical operation in contrast to the control group (risk ratio, 0.60; 95% confidence intervals, 0.45-0.78; p < 0.05; I 2 = 46%). In addition, dexmedetomidine decreased the period of hospitalization in both the intensive care unit (ICU) and the hospital while also reducing postoperative delirium (POD) occurrence. However, dexmedetomidine elevated the incidence of bradycardia but did not have a significant impact on other indicators. Conclusion Our meta-analysis indicates that the dexmedetomidine treatment reduces the postoperative AKI and POD risk while also shortening the time of hospitalization in the ICU and hospital. However, it is connected to an increased bradycardia risk.
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Affiliation(s)
- Jing Zhao
- Department of Anesthesiology, Jiashan First People’s Hospital, Jiaxing, China
| | - Ming-hao Tang
- Department of Anesthesiology, Jiashan First People’s Hospital, Jiaxing, China
| | - Qi-hong Shen
- Department of Anesthesiology, First Hospital of Jiaxing, Jiaxing, China
| | - Ding-chao Xu
- Department of Anesthesiology, Jiashan First People’s Hospital, Jiaxing, China
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3
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Wasfie T, Hardy R, Naisan M, Hella J, Barber K, Yapchai R, Memar S, Megaly M, Shapiro B. Value of Thoracic CT in Blunt Trauma Patients With High Glasgow Coma Scale and Low Injury Severity Scale. Am Surg 2023; 89:5678-5681. [PMID: 37118989 DOI: 10.1177/00031348231173423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
OBJECTIVE To determine the value of ordering a routine chest CT (CCT) in patients with blunt trauma presenting to the emergency department with a high GCS and low ISS, we retrospectively collected patient data including CT scan results, when physical examination and initial chest X-ray were normal in the trauma bay area. METHODS A retrospective data collection of 901 consecutive blunt trauma patients seen in the ED between 2017 and 2019 was analyzed. Data included physical examination, age, gender, current use of anticoagulation therapy, comorbid conditions, as well as the result of radiologic images, hospital length of stay, surgical intervention, and mortality. The patients were divided into two groups: group one (patients with negative physical examination; chest x-ray and CT) and group 2 (negative physical examination, positive or negative chest x-ray, and positive CT). Statistical analysis was performed using student's t-test and chi-square test. RESULTS Of the 901 patients there were 489 (54%) males and 412 (46%) females with a mean age of 56 years. There were 461 patients who had a physical examination, chest x-ray, abdominal and CCT done. Group one included 442 (96%) patients, with negative physical examination, negative chest X-ray and CT scan. In group 2, 19 (4%) patients who had positive CT and or chest x-ray. Both groups were similar in GCS and ISS. Of the 19 patients, sixteen patients had a positive CCT, and thirteen of those had a positive chest x-ray. In the three patients who had negative physical examination and chest x-ray, the CT findings included one with a nondisplaced 10th rib fracture and two patients with osteoporotic compression fractures of dorsal vertebrae. The rate of both chest x-ray and CCT being positive among a group of screened patients was 16% (3/19) and the rate of a negative chest x-ray but positive CT was 16% (3/19). The odds ratio between the two outcomes was one. CONCLUSION In blunt trauma patients presenting to the ED with a high GCS and low ISS score, when initial physical examination and chest x-ray are negative, routine CCT is of little value.
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Affiliation(s)
- Tarik Wasfie
- Department of Trauma and General Surgery, Ascension Genesys Hospital, Grand Blanc, MI, USA
| | - Rachel Hardy
- Department of Trauma and General Surgery, Ascension Genesys Hospital, Grand Blanc, MI, USA
| | | | - Jennifer Hella
- Department of Academic Research, Ascension Genesys Hospital, Grand Blanc, MI, USA
| | - Kimberly Barber
- Department of Academic Research, Ascension Genesys Hospital, Grand Blanc, MI, USA
| | - Raquel Yapchai
- Department of Trauma and General Surgery, Ascension Genesys Hospital, Grand Blanc, MI, USA
| | - Shayan Memar
- Kirkville College of Osteopathic Medicine, Kirksville, MO, USA
| | - Maher Megaly
- College of Medicine, Central Michigan University, Mount Pleasant, MI, USA
| | - Brian Shapiro
- Department of Trauma and General Surgery, Ascension Genesys Hospital, Grand Blanc, MI, USA
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4
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You JS, Cho J, Shin HJ, Beom JH. Baseline eGFR cutoff for increased risk of post-contrast acute kidney injury in patients undergoing percutaneous coronary intervention for ST-elevation myocardial infarction in the emergency department. PLoS One 2023; 18:e0293598. [PMID: 37883518 PMCID: PMC10602274 DOI: 10.1371/journal.pone.0293598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 10/16/2023] [Indexed: 10/28/2023] Open
Abstract
Acute myocardial infarction is an acute-stage disease that requires prompt diagnosis and treatment. Primary percutaneous coronary intervention (pPCI) for ST-elevation myocardial infarction (STEMI) is a high-risk factor for post-contrast acute kidney injury (PC-AKI). This retrospective cohort study analyzed the data of 754 patients with STEMI who underwent pPCI and were integrated into the Fast Interrogation Rule for STEMI critical pathway program between 2015 and 2019. We aimed to determine the optimal cutoff baseline eGFR for identifying a high risk of PC-AKI after multivariable adjustment with statistically significant risk factors. We also compared the incidence rates of PC-AKI between the previous and current diagnostic criteria. The probability of PC-AKI increased when the baseline estimated glomerular filtration rate (eGFR) was ≤ 79mL/min/1.73 m2. The optimal cutoff baseline eGFR for high risk of PC-AKI was found to be an eGFR of ≤ 61 mL/min/1.73 m2 after multivariable adjustment. The current diagnostic criteria more accurately identified the patient group with impaired renal function. Our results have clinically significant implications for identifying patients at a high risk of developing PC-AKI, especially before and after the use of contrast agents in patients who require PCI for STEMI in the emergency department.
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Affiliation(s)
- Je Sung You
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
- Department of Emergency Medicine, Yonsei University College of Medicine, Gangnam Severance Hospital, Seoul, Republic of Korea
| | - Junho Cho
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hye Jung Shin
- Department of Biomedical Systems Informatics, Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jin Ho Beom
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
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Mehta R, Sorbo D, Ronco F, Ronco C. Key Considerations regarding the Renal Risks of Iodinated Contrast Media: The Nephrologist's Role. Cardiorenal Med 2023; 13:324-331. [PMID: 37757781 PMCID: PMC10664334 DOI: 10.1159/000533282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 06/23/2023] [Indexed: 09/29/2023] Open
Abstract
BACKGROUND The administration of iodinated contrast medium during diagnostic and therapeutic procedures has always been associated with the fear of causing acute kidney injury (AKI) or an exacerbation of chronic kidney disease. This has led, on the one hand, to the deterrence, when possible, of the use of contrast medium (preferring other imaging methods with the risk of loss of diagnostic power), and on the other hand, to the trialling of multiple prophylaxis protocols in an attempt to reduce the risk of kidney injury. SUMMARY A literature review on contrast-induced (CI)-AKI risk mitigation strategies was performed, focussing on the recognition of individual risk factors and on the most recent evidence regarding prophylaxis. KEY MESSAGES Nephrologists can contribute significantly in the CI-AKI context, from the early stages of the decision-making process to stratifying patients by risk, individualising prophylaxis measures based on the risk profile, and ensuring appropriate evaluation of kidney function and damage post-procedure to improve care.
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Affiliation(s)
- Ravindra Mehta
- Division of Nephrology-Hypertension University of California – San Diego, San Diego, CA, USA
| | - David Sorbo
- Nephrology, Dialysis and Transplantation Unit, St. Bortolo Hospital, ULSS8 Berica, Vicenza, Italy
| | - Federico Ronco
- Interventional Cardiology – Department of Cardiac Thoracic and Vascular Sciences Ospedale dell’Angelo – Mestre (Venice), Venice, Italy
| | - Claudio Ronco
- Nephrology, Dialysis and Transplantation Unit and International Renal Research Institute, St Bortolo Hospital, ULSS8 Berica, Vicenza, Italy
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Nanodrugs alleviate acute kidney injury: Manipulate RONS at kidney. Bioact Mater 2023; 22:141-167. [PMID: 36203963 PMCID: PMC9526023 DOI: 10.1016/j.bioactmat.2022.09.021] [Citation(s) in RCA: 28] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 08/12/2022] [Accepted: 09/19/2022] [Indexed: 02/06/2023] Open
Abstract
Currently, there are no clinical drugs available to treat acute kidney injury (AKI). Given the high prevalence and high mortality rate of AKI, the development of drugs to effectively treat AKI is a huge unmet medical need and a research hotspot. Although existing evidence fully demonstrates that reactive oxygen and nitrogen species (RONS) burst at the AKI site is a major contributor to AKI progression, the heterogeneity, complexity, and unique physiological structure of the kidney make most antioxidant and anti-inflammatory small molecule drugs ineffective because of the lack of kidney targeting and side effects. Recently, nanodrugs with intrinsic kidney targeting through the control of size, shape, and surface properties have opened exciting prospects for the treatment of AKI. Many antioxidant nanodrugs have emerged to address the limitations of current AKI treatments. In this review, we systematically summarized for the first time about the emerging nanodrugs that exploit the pathological and physiological features of the kidney to overcome the limitations of traditional small-molecule drugs to achieve high AKI efficacy. First, we analyzed the pathological structural characteristics of AKI and the main pathological mechanism of AKI: hypoxia, harmful substance accumulation-induced RONS burst at the renal site despite the multifactorial initiation and heterogeneity of AKI. Subsequently, we introduced the strategies used to improve renal targeting and reviewed advances of nanodrugs for AKI: nano-RONS-sacrificial agents, antioxidant nanozymes, and nanocarriers for antioxidants and anti-inflammatory drugs. These nanodrugs have demonstrated excellent therapeutic effects, such as greatly reducing oxidative stress damage, restoring renal function, and low side effects. Finally, we discussed the challenges and future directions for translating nanodrugs into clinical AKI treatment. AKI is a common clinical acute syndrome with high morbidity and mortality but without effective clinical drug available. Hypoxia and accumulation of toxic substances are key pathological features of various heterogeneous AKI. Excessive RONS is the core of the pathological mechanism of AKI. The development of nanodrugs is expected to achieve successful treatment in AKI.
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Wada S, Iwanaga Y, Nakai M, Nakao YM, Miyamoto Y, Noguchi T. Combination of coronary CT angiography, FFR CT , and risk factors in the prediction of major adverse cardiovascular events in patients suspected CAD. Clin Cardiol 2023; 46:494-501. [PMID: 36860175 DOI: 10.1002/clc.23989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 01/18/2023] [Accepted: 01/29/2023] [Indexed: 03/03/2023] Open
Abstract
BACKGROUND To examine the utility of fractional flow reserve by coronary computed tomography (CT) angiography (FFRCT ) for predicting major adverse cardiovascular events (MACE) in patients with suspected coronary artery disease (CAD). METHODS This was a nationwide multicenter prospective cohort study including consecutive 1187 patients aged 50-74 years with suspected CAD and had available coronary CT angiography (CCTA). In patients with ≥50% coronary artery stenosis (CAS), FFRCT was further analyzed. The Cox proportional hazards model was used to examine the association of FFRCT and cardiovascular risk factors with incident MACE within 2 years. RESULTS Among 933 patients with available information on MACE within 2 years after enrollment, the incidence rate of MACE was higher in 281 patients with CAS than in those without CAS (6.11 vs. 1.16 per 100 patient-year). In 241 patients with CAS, the Cox proportional hazards analysis showed that FFRCT as well as diabetes mellitus and low high-density lipoprotein cholesterol level were independently associated with incident MACE. Moreover, the hazard ratio was significantly higher in patients harboring all three factors compared to those harboring 0-2 of the three factors (6.01; 95% confidence interval: 2.77-13.03). CONCLUSIONS Combinatorial assessment using CCTA for stenosis, FFRCT , and risk factors was useful for more accurate prediction of MACE in patients with suspected CAD. Among patients with CAS, those with lower FFRCT , diabetes mellitus, and low high-density lipoprotein cholesterol level were at highest risk for MACE during the 2-year period following enrollment.
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Affiliation(s)
- Shinichi Wada
- Department of Medical and Health Information Management, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Yoshitaka Iwanaga
- Department of Medical and Health Information Management, National Cerebral and Cardiovascular Center, Suita, Japan.,Department of Cardiology, Sakurabashi Watanabe Hospital, Osaka, Japan
| | - Michikazu Nakai
- Department of Medical and Health Information Management, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Yoko M Nakao
- Department of Medical and Health Information Management, National Cerebral and Cardiovascular Center, Suita, Japan.,Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
| | - Yoshihiro Miyamoto
- Department of Medical and Health Information Management, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Teruo Noguchi
- Department of Cardiology, National Cerebral and Cardiovascular Center, Suita, Japan
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Infante B, Conserva F, Pontrelli P, Leo S, Stasi A, Fiorentino M, Troise D, dello Strologo A, Alfieri C, Gesualdo L, Castellano G, Stallone G. Recent advances in molecular mechanisms of acute kidney injury in patients with diabetes mellitus. Front Endocrinol (Lausanne) 2023; 13:903970. [PMID: 36686462 PMCID: PMC9849571 DOI: 10.3389/fendo.2022.903970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 12/14/2022] [Indexed: 01/06/2023] Open
Abstract
Several insults can lead to acute kidney injury (AKI) in native kidney and transplant patients, with diabetes critically contributing as pivotal risk factor. High glucose per se can disrupt several signaling pathways within the kidney that, if not restored, can favor the instauration of mechanisms of maladaptive repair, altering kidney homeostasis and proper function. Diabetic kidneys frequently show reduced oxygenation, vascular damage and enhanced inflammatory response, features that increase the kidney vulnerability to hypoxia. Importantly, epidemiologic data shows that previous episodes of AKI increase susceptibility to diabetic kidney disease (DKD), and that patients with DKD and history of AKI have a generally worse prognosis compared to DKD patients without AKI; it is therefore crucial to monitor diabetic patients for AKI. In the present review, we will describe the causes that contribute to increased susceptibility to AKI in diabetes, with focus on the molecular mechanisms that occur during hyperglycemia and how these mechanisms expose the different types of resident renal cells to be more vulnerable to maladaptive repair during AKI (contrast- and drug-induced AKI). Finally, we will review the list of the existing candidate biomarkers of diagnosis and prognosis of AKI in patients with diabetes.
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Affiliation(s)
- Barbara Infante
- Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - Francesca Conserva
- Department of Emergency and Organ Transplantation, University of Bari Aldo Moro, Bari, Italy
| | - Paola Pontrelli
- Department of Emergency and Organ Transplantation, University of Bari Aldo Moro, Bari, Italy
| | - Serena Leo
- Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - Alessandra Stasi
- Department of Emergency and Organ Transplantation, University of Bari Aldo Moro, Bari, Italy
| | - Marco Fiorentino
- Department of Emergency and Organ Transplantation, University of Bari Aldo Moro, Bari, Italy
| | - Dario Troise
- Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | | | - Carlo Alfieri
- Nephrology, Dialysis and Renal Transplant Unit, Department of Clinical Sciences and Community Health, University of Milan, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Loreto Gesualdo
- Department of Emergency and Organ Transplantation, University of Bari Aldo Moro, Bari, Italy
| | - Giuseppe Castellano
- Nephrology, Dialysis and Renal Transplant Unit, Department of Clinical Sciences and Community Health, University of Milan, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Giovanni Stallone
- Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
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Youden B, Wang F, Zhang X, Curry D, Majtenyi N, Shaaer A, Bingham K, Nguyen Q, Bragg L, Liu J, Servos M, Zhang X, Jiang R. Degradable Multifunctional Gold-Liposomes as an All-in-One Theranostic Platform for Image-Guided Radiotherapy. Int J Pharm 2022; 629:122413. [DOI: 10.1016/j.ijpharm.2022.122413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 11/07/2022] [Accepted: 11/13/2022] [Indexed: 11/23/2022]
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Chaudhari H, Mahendrakar S, Baskin SE, Reddi AS. Contrast-Induced Acute Kidney Injury: Evidence in Support of Its Existence and a Review of Its Pathogenesis and Management. Int J Nephrol Renovasc Dis 2022; 15:253-266. [PMID: 36311164 PMCID: PMC9604418 DOI: 10.2147/ijnrd.s371700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 08/10/2022] [Indexed: 11/06/2022] Open
Abstract
The role of contrast-induced nephropathy (CIN) remains controversial. Many experts contend that CIN does not exist or is extremely rare. The diagnosis was previously made too frequently and inappropriately in the presence of coexisting and confounding comorbidities and risk factors making it difficult to singularly isolate the etiologic role of intravenous contrast media in acute kidney injury (AKI). It is probable that many patients were denied important diagnostic information from radiocontrast studies for fear of CIN. Recently, a new terminology for CIN was introduced, and the term CIN was replaced by two interrelated new terms: one is contrast-associated acute kidney injury (CA-AKI), and the second one is contrast-induced acute kidney injury (CI-AKI). CA-AKI occurs in association with risk factors or comorbidities, therefore, it is a correlative diagnosis. On the other hand, CI-AKI is a subtype of CA-AKI that results directly from iodinated contrast media. In this review, we present evidence from various studies that argue against CI-AKI and also those that suggest its existence but with much lower frequency. We will also provide the current status of the pathophysiology and management of CA-AKI/CI-AKI.
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Affiliation(s)
- Harshad Chaudhari
- Department of Medicine, Rutgers New Jersey Medical School, Newark, NJ, USA,Correspondence: Harshad Chaudhari, Email
| | - Smita Mahendrakar
- Department of Medicine, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Stuart E Baskin
- Department of Medicine, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Alluru S Reddi
- Department of Medicine, Rutgers New Jersey Medical School, Newark, NJ, USA
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Rosiglitazone Alleviates Contrast-Induced Acute Kidney Injury in Rats via the PPARγ/NLRP3 Signaling Pathway. DISEASE MARKERS 2022; 2022:4158692. [PMID: 36225198 PMCID: PMC9550500 DOI: 10.1155/2022/4158692] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 09/07/2022] [Indexed: 11/17/2022]
Abstract
Background This study investigated the effect and mechanism of rosiglitazone on a rat model with contrast-induced acute kidney injury (CI-AKI). Materials and Methods The CI-AKI rat model was established from Sprague Dawley rats by furosemide injection (10 ml/kg) to the caudal vein followed by iohexol (11.7 ml/kg). The experimental grouping was randomly allocated into control, model, rosiglitazone, and T0070907 groups. Blood samples were collected from the abdominal aorta. Serum creatinine, urea nitrogen, MDA, and SOD contents were detected by biochemical analysis. TNF-α and IL-10 expression was detected by ELISA. Urine creatinine and urine protein were measured following 24-h urine biochemistry testing. Cell pathology and apoptosis were detected by H&E and TUNEL staining, respectively. PPARγ, NLRP3, eNOS, and caspase-3 mRNA expression were detected by qPCR. Caspase-3 and NLRP3 expression were detected by immunohistochemistry. Results The CI-AKI rat model was successfully established because the results showed that compared with control, serum creatinine, urea nitrogen, MDA, SOD, TNF-α, and IL-10, urine creatinine and urine protein levels were significantly increased in the model group, indicating AKI, but was significantly decreased with rosiglitazone treatment, indicating recovery from injury, while opposite results were obtained with SOD. Apoptosis rate was significantly increased in the model group and significantly decreased with rosiglitazone treatment. NLRP3 and eNOS increased significantly in the model group and decreased significantly with rosiglitazone treatment, while opposite results were obtained with PPARγ. NLRP3 and caspase-3 protein expression was significantly increased in the model group and significantly decreased with rosiglitazone treatment. Conclusion Rosiglitazone could alleviate acute renal injury in the CI-AKI rat model by regulating the PPARγ/NLRP3 signaling pathway and should be further investigated as a potential treatment in clinical studies.
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12
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Sheen JC, Vella D, Hung L. Retrospective analysis of liver lobe torsion in pet rabbits: 40 cases (2016-2021). Vet Rec 2022; 191:e1971. [PMID: 35841624 DOI: 10.1002/vetr.1971] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 05/04/2022] [Accepted: 06/06/2022] [Indexed: 11/07/2022]
Abstract
BACKGROUND Liver lobe torsion (LLT) in rabbits can be under-recognised and potentially fatal. The clinical features of cases presented to an exotic animal veterinary service in Australia were retrospectively reviewed. METHOD Medical records of confirmed rabbit LLT cases between 2016 and 2021 were reviewed for signalment, clinical signs and findings, diagnostic imaging results, management strategies and outcomes. Variables of interest were analysed for statistical association with outcome. RESULTS A total of 40 rabbits were included. The mean presenting age was 56.2 months (SD 30.5). Neutered males (23/40, 57.5%) were over-represented. Common clinical signs and findings included reduced appetite (40/40, 100%), lethargy (32/40, 80.0%), reduced faecal production (16/40, 40.0%), a doughy distended stomach (20/40, 50.0%), pale mucous membranes (19/40, 47.5%) and hypothermia (17/40, 42.5%). Anaemia and elevated plasma alanine aminotransferase and blood urea nitrogen were common clinicopathologic findings. Computed tomography (CT) was performed in 34 of 40 rabbits, confirming the presence and position of LLT (34/34, 100%), stenosis of the caudal vena cava or portal system (28/34, 82.4%) and increased free peritoneal fluid (29/34, 85.3%). Fifteen (15/40, 37.5%) rabbits were medically managed, and surgical intervention was performed in 23 of 40 (57.5%) rabbits. Overall, 30 of 40 (75.0%) rabbits survived. Surgical intervention did not confer a significant difference in outcome compared to medical management (odds ratio 0.77, 95% confidence interval 0.15-4.10, p = 0.761). CONCLUSION CT can be an invaluable diagnostic modality for rabbit LLT. Favourable outcomes can be achieved in selected cases with medical management alone.
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Affiliation(s)
- Joanne C Sheen
- Sydney Exotics & Rabbit Vets, North Shore Veterinary Specialist Centre, Artarmon, New South Wales, Australia
| | - David Vella
- Sydney Exotics & Rabbit Vets, North Shore Veterinary Specialist Centre, Artarmon, New South Wales, Australia
| | - Lily Hung
- Animalius, Bayswater, Western Australia, Australia
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13
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Abdalla MA, Ahmed KO, Yousef BA. Incidence and Risk Factors of Contrast-Induced Acute Kidney Injury in Sudanese Patients Undergoing Coronary Angiography: A Descriptive Prospective Study. Cureus 2022; 14:e21876. [PMID: 35273847 PMCID: PMC8901158 DOI: 10.7759/cureus.21876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/03/2022] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND Contrast-induced acute kidney injury (CI-AKI) has been reported to be the third most common cause of hospital-acquired acute kidney injury (AKI) and is associated with significant morbidity and mortality. OBJECTIVES This study aimed to assess the incidence and risk factors of CI-AKI in Sudanese patients undergoing coronary angiography. METHODS The study was a descriptive, prospective, hospital-based study conducted at Alshaab Hospital between January and April 2019. A total of 163 patients undergoing coronary angiography were enrolled, and a checklist was used to collect data. Chi-square and regression analyses were performed to identify the risk factors of CI‑AKI. CI‑AKI was defined as a rise in serum creatinine ≥25% above baseline within three days after percutaneous coronary angiography (PCA). RESULTS CI‑AKI incidence in patients undergoing coronary angiography was 31.9% (52/163). Among independent variables, diabetes mellitus, the type of coronary angiography, and the volume of contrast medium were statistically significantly (p-value ˂ 0.05) associated with CI-AKI development. Logistic analysis showed that diabetes (odds ratio (OR): 15.2; 95% CI: 6.771-33.974; p = 0.001), percutaneous coronary intervention (PCI) (OR: 2.4; 95% CI: 1.168-4.901; p = 0.017), and the volume of contrast medium (OR 2.1; 95% CI: 1.440-3.054; p = 0.001) were independent predictors correlated to CI‑AKI development. CONCLUSION The incidence of CI-AKI is 31.9%, and diabetes mellitus, PCI, and high volume of contrast medium are associated with a higher risk of CI-AKI in patients undergoing coronary angiography.
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Affiliation(s)
- Mohira A Abdalla
- Department of Clinical Pharmacy, Faculty of Pharmacy, University of Khartoum, Khartoum, SDN
| | - Kannan O Ahmed
- Department of Clinical Pharmacy, Faculty of Pharmacy, University of Gezira, Wad Madani, SDN
| | - Bashir A Yousef
- Department of Pharmacology, University of Khartoum, Khartoum, SDN
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14
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Rauch S. Contrast media and side effects. Nucl Med Mol Imaging 2022. [DOI: 10.1016/b978-0-12-822960-6.00189-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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15
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Li J, Peng Y, Zhang X, Yang C, Li X, He H, Li Q, Shu C. Endovascular repair of abdominal aortic or iliac artery pathologies in patients with autosomal dominant polycystic kidney disease. INT ANGIOL 2021; 41:41-47. [PMID: 34751540 DOI: 10.23736/s0392-9590.21.04692-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND This study aims to evaluate the efficacy and safety of endovascular aneurysm repair (EVAR) of abdominal aortic or iliac artery pathologies in patients with autosomal dominant polycystic kidney disease (ADPKD). METHODS From January 2014 to December 2019, fifteen consecutive patients (13 men, mean age 69.3 years, range 56-82 years) with abdominal aortic or iliac artery pathologies coexisting with ADPKD underwent EVAR in our department. Their general data, perioperative results and follow-up outcomes were retrospectively reviewed and analyzed. RESULTS:Among the fifteen patients, eleven had abdominal aortic aneurysms, one had isolated abdominal aortic dissection and the other three had iliac artery aneurysms. Three patients had thoracic penetrating aortic ulcer and two had intracranial aneurysms as the comorbidities. All patients underwent EVAR with the aorto-iliac pathologies successfully excluded. The average operative time was 171±73 minutes and average contrast volume was 87±12mL. The average follow-up time was 38.4 months (range 6-60). Aorta-bi-iliac stent-grafts were deployed in fourteen patients, while one patient received tubular stent-graft. Two patients underwent simultaneous TEVAR and EVAR, and One underwent EVAR 3 months after TEVAR. One patient was found to have a hematoma at the site of femoral access 3 days after EVAR. One patient was found to have a Type Ib endoleak 5 months after EVAR, and he recovered well with a secondary endovascular intervention. Contrast-induced nephropathy was observed in two patients (13%) post EVAR. Another patient developed renal failure 20 months after EVAR, and was treated with regular hemodialysis. All other patients did not have any reported significant deterioration of renal function during follow-up. No other adverse events, such as death, paraplegia, aneurysm rupture, or open surgery conversion occurred during operation and follow-up. CONCLUSIONS For patients with abdominal aortic or iliac artery diseases coexisting with ADPKD, EVAR had satisfactory mid-term outcomes, without significantly exacerbating the decline of renal function. However, patients with ADPKD might have multiple vascular lesions, especially intracranial aneurysms, which should be paid enough attention in clinical practice.
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Affiliation(s)
- Jiehua Li
- Department of Vascular Surgery, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China.,Vascular Disease Institute, Central South University, Changsha, Hunan, China
| | - Yuan Peng
- Department of Vascular Surgery, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China.,Vascular Disease Institute, Central South University, Changsha, Hunan, China
| | - Xiaolong Zhang
- Department of Vascular Surgery, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China.,Vascular Disease Institute, Central South University, Changsha, Hunan, China
| | - Chenzi Yang
- Department of Vascular Surgery, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China.,Vascular Disease Institute, Central South University, Changsha, Hunan, China
| | - Xin Li
- Department of Vascular Surgery, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China.,Vascular Disease Institute, Central South University, Changsha, Hunan, China
| | - Hao He
- Department of Vascular Surgery, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China.,Vascular Disease Institute, Central South University, Changsha, Hunan, China
| | - Quanming Li
- Department of Vascular Surgery, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China.,Vascular Disease Institute, Central South University, Changsha, Hunan, China
| | - Chang Shu
- Department of Vascular Surgery, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China - .,Vascular Disease Institute, Central South University, Changsha, Hunan, China.,Center of Vascular Surgery, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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16
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Peters AA, Heverhagen JT, Boehm IB. Delayed hypersensitivity reaction after oral intake of non-ionic iodinated contrast medium. Acta Clin Belg 2021; 77:785-786. [PMID: 34556010 DOI: 10.1080/17843286.2021.1982217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Following intravenous contrast medium (CM) injection, a small proportion of patients acquires hypersensitivity reactions that occur either immediately or non-immediately (delayed). Although it is now claer that even oral applied CMs are able to cause adverse reactions, many radiologists as well as physicians of other disciplines, still believe that CM-application via the gastrointestinal route does not induce hypersensitivity reactions. Since this kind of misinterpretation may harm the patient, education on this topic is still necessary. Therefore, we describe a case who acquired a delayed hypersensitivity reaction following the oral intake of a non-ionic iodinated CM.
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Affiliation(s)
- Alan A. Peters
- Department of Diagnostic, Interventional and Pediatric Radiology, Inselspital, University Hospital, University of Bern, Bern, Switzerland
| | - Johannes T. Heverhagen
- Department of Diagnostic, Interventional and Pediatric Radiology, Inselspital, University Hospital, University of Bern, Bern, Switzerland
| | - Ingrid B. Boehm
- Department of Diagnostic, Interventional and Pediatric Radiology, Inselspital, University Hospital, University of Bern, Bern, Switzerland
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17
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Shan XS, Dai HR, Zhao D, Yang BW, Feng XM, Liu H, Peng K, Ji FH. Dexmedetomidine reduces acute kidney injury after endovascular aortic repair of Stanford type B aortic dissection: A randomized, double-blind, placebo-controlled pilot study. J Clin Anesth 2021; 75:110498. [PMID: 34488061 DOI: 10.1016/j.jclinane.2021.110498] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 08/23/2021] [Accepted: 08/29/2021] [Indexed: 12/14/2022]
Abstract
STUDY OBJECTIVE To determine the effect of dexmedetomidine on acute kidney injury (AKI) following endovascular aortic repair (EVAR) for Stanford type B aortic dissection (TBAD). DESIGN Randomized, double-blind, placebo-controlled, pilot study. SETTING University Hospital. PATIENTS 102 TBAD patients undergoing EVAR procedures were enrolled. Patients with dissection involving aortic arch or renal artery were excluded. INTERVENTIONS Patients were randomly assigned, in a 1:1 ratio, to a dexmedetomidine group (intravenous dexmedetomidine 0.4 μg/kg/h immediately after anesthesia induction and 0.1 μg/kg/h after extubation, which was maintained until 24 h) or a normal saline control group. MEASUREMENTS The primary outcome was the incidence of AKI within the first two days after surgery, based on the Acute Kidney Injury Network (AKIN) criteria. The secondary outcomes included serum cystatin C and estimated glomerular filtration rate on postoperative days 1, 2, and 7, and in-hospital need for renal replacement therapy (RRT). Long-term outcomes included RRT and all-cause mortality. MAIN RESULTS Ninety-eight patients completed the study (dexmedetomidine, n = 48; control, n = 50). AKIN stage 1 AKI occurred in 3/48 (6.3%) patients receiving dexmedetomidine, compared with 11/50 (22%) patients receiving normal saline (odds ratio = 0.24, 95% CI: 0.07 to 0.89, P = 0.041). This difference remained significant after adjusting for baseline covariates (adjusted odds ratio = 0.21, 95% CI: 0.05 to 0.84; P = 0.028). Dexmedetomidine led to a lower serum cystatin C on postoperative day 1 (median [IQR] mg/L: 1.31 [1.02-1.72] vs. 1.58 [1.28-1.96]). There were no between-group differences in other secondary or long-term outcomes. During the follow-up (median = 28.4 months), 1 patient in the dexmedetomidine group and 3 patients in the control group required RRT. CONCLUSIONS Dexmedetomidine reduced the incidence of AKI in TBAD patients after EVAR procedures. The long-term benefits of dexmedetomidine in this patient population warrant further investigation. TRIAL REGISTRATION ChiCTR-IPR-15006372.
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Affiliation(s)
- Xi-Sheng Shan
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Hui-Rong Dai
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China; Department of Anesthesiology, Yancheng Third People's Hospital, Yancheng, Jiangsu, China
| | - Dan Zhao
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Bi-Wen Yang
- Department of Cardiovascular Surgery, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Xiao-Mei Feng
- Department of Anesthesiology, University of Utah Health, Salt Lake City, UT, USA; Transitional Residency Program, Intermountain Medical Center, Murray, UT, USA
| | - Hong Liu
- Department of Anesthesiology and Pain Medicine, University of California Davis Health, Sacramento, CA, USA
| | - Ke Peng
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China.
| | - Fu-Hai Ji
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China.
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18
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Serra R, Bracale UM, Ielapi N, Del Guercio L, Di Taranto MD, Sodo M, Michael A, Faga T, Bevacqua E, Jiritano F, Serraino GF, Mastroroberto P, Provenzano M, Andreucci M. The Impact of Chronic Kidney Disease on Peripheral Artery Disease and Peripheral Revascularization. Int J Gen Med 2021; 14:3749-3759. [PMID: 34326661 PMCID: PMC8315808 DOI: 10.2147/ijgm.s322417] [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: 05/29/2021] [Accepted: 07/05/2021] [Indexed: 12/11/2022] Open
Abstract
Chronic kidney disease (CKD) is a clinical condition characterized by high morbidity and mortality. Globally, CKD is also increasing in prevalence and incidence. The two principal kidney measures namely estimated glomerular filtration rate (eGFR) and albuminuria have been found to be predictors of renal and cardiovascular (CV) endpoints including peripheral artery disease (PAD). The prevalence of PAD was increased in CKD patients and, particularly, in patients with more severe CKD stages. Despite the fact that revascularization strategies are suitable in CKD patients in similar fashion to non-CKD patients, few CKD patients underwent these procedures. In fact, if it is true that revascularization improves prognosis in PAD patients irrespective of baseline eGFR, it was also demonstrated that CKD patients, who underwent revascularization, were at higher risk for amputations, mortality, re-intervention and perioperative complications. With the present review article, we have examined the association between CKD, PAD and peripheral revascularization highlighting data about epidemiology, pathophysiologic mechanisms, and results from previous observational and intervention studies. We have also examined the future perspectives and challenges of research around the association between CKD and PAD.
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Affiliation(s)
- Raffaele Serra
- Interuniversity Center of Phlebolymphology (CIFL), "Magna Graecia" University, Catanzaro, Italy.,Department of Surgical and Medical Sciences, University Magna Graecia of Catanzaro, Viale Europa, Catanzaro, 88100, Italy
| | | | - Nicola Ielapi
- Department of Public Health and Infectious Disease, "Sapienza" University of Rome, Roma, 00185, Italy
| | - Luca Del Guercio
- Department of Public Health, University of Naples "Federico II", Naples, Italy
| | - Maria Donata Di Taranto
- Department of Molecular Medicine and Medical Biotechnology, University Federico II of Naples, Naples, Italy
| | - Maurizio Sodo
- Department of Public Health, University of Naples "Federico II", Naples, Italy
| | - Ashour Michael
- Department of Health Sciences, "Magna Graecia" University, Catanzaro, Italy
| | - Teresa Faga
- Department of Health Sciences, "Magna Graecia" University, Catanzaro, Italy
| | - Egidio Bevacqua
- Department of Experimental and Clinical Medicine, University of Catanzaro, Catanzaro, 88100, Italy
| | - Federica Jiritano
- Department of Experimental and Clinical Medicine, University of Catanzaro, Catanzaro, 88100, Italy
| | | | - Pasquale Mastroroberto
- Department of Experimental and Clinical Medicine, University of Catanzaro, Catanzaro, 88100, Italy
| | - Michele Provenzano
- Department of Medical and Surgical Sciences, University Magna Graecia of Catanzaro, Viale Europa, Catanzaro, 88100, Italy
| | - Michele Andreucci
- Department of Health Sciences, "Magna Graecia" University, Catanzaro, Italy
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19
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Johansen CB, Martinsen ACT, Enden TR, Svanteson M. The potential of iodinated contrast reduction in dual-energy CT thoracic angiography; an evaluation of image quality. Radiography (Lond) 2021; 28:2-7. [PMID: 34301491 DOI: 10.1016/j.radi.2021.07.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 07/02/2021] [Accepted: 07/05/2021] [Indexed: 10/20/2022]
Abstract
INTRODUCTION The purpose of this study was to compare a dual energy CT (DECT) protocol with 50% reduction of iodinated contrast to a single energy CT (SECT) protocol using standard contrast dose in imaging of the thoracic aorta. METHODS DECT with a 50% reduction in iodinated contrast was compared with SECT. For DECT, monoenergetic images at 50, 55, 60, 65, 68, 70, and 74 keV were reconstructed with adaptive statistical iterative reconstruction (ASiR-V) of 50% and 80%. Objective image quality parameters included intravascular attenuation (HU), image noise (SD), contrast-to-noise ratio (CNR), and signal-to-noise ratio (SNR). Two independent radiologists subjectively assessed the image quality for the 55 and 68 keV DECT reconstructions and SECT on a five-point Likert scale. RESULTS Across 14 patients, the intravascular attenuation at 50-55 keV was comparable to SECT (p > 0.05). The CNRs were significantly lower for DECT with ASIR-V 50% compared to SECT for all keV-values (p < 0.05 for all). For ASIR-V 80%, CNR was comparable to SECT at energies below 60 keV (p > 0.05). The subjective image quality was comparable between DECT and SECT independent of keV level. CONCLUSION This study indicates that a 50% reduction in iodinated contrast may result in adequate image quality using DECT with monoenergetic reconstructions at lower energy levels for the imaging of the thoracic aorta. The best image quality was obtained for ASiR-V 80% image reconstructions at 55 keV. IMPLICATIONS OF PRACTICE Dual energy CT with a reduction in iodinated contrast may result in adequate image quality in imaging of the thoracic aorta. However, increased radiation dose may limit the use to patients in which a reduction in fluid and iodinated contrast volume may outweigh this risk.
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Affiliation(s)
- C B Johansen
- Department of Radiology and Nuclear Medicine, Oslo University Hospital, Norway; Faculty of Health Science, Oslo Metropolitan University, Norway.
| | - A C T Martinsen
- Faculty of Health Science, Oslo Metropolitan University, Norway; Sunnaas Rehabilitation Hospital, Norway.
| | - T R Enden
- Department of Radiology and Nuclear Medicine, Oslo University Hospital, Norway.
| | - M Svanteson
- Department of Radiology and Nuclear Medicine, Oslo University Hospital, Norway; ImTECH, Department of Diagnostic Physics, Oslo University Hospital, Norway.
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20
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de Abreu JSS, Fernandes J. The contrast agent 2,3,5-triiodobenzoic acid (TIBA) induces cell death in tumor cells through the generation of reactive oxygen species. Mol Biol Rep 2021; 48:5199-5207. [PMID: 34196897 DOI: 10.1007/s11033-021-06524-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 06/25/2021] [Indexed: 11/28/2022]
Abstract
The 2,3,5-triiodobenzoic acid (TIBA) is an iodine contrast agent used for visualization of tissue in X-ray techniques. However, TIBA induces physiological complications like increase in oxygen reactive species (ROS), and consequently, contrast-induced nephropathies. TIBA's antitumor activity was demonstrated in lung cancer, but the subcellular mechanisms involving its activity in tumor cells are still unknown. Thus, the objective of this work was evaluate whether the anti-tumor activity of TIBA involves ROS increase, in tumor lines of non-small cell lung cancer (H460), chronic myeloid leukemia (K562), and its cytotoxicity in normal renal epithelial (VERO). The MTT (3-(4,5-dimethylthiazol-2-yl)-2,5 diphenyltetrazolium bromide) assay was used for evaluation of cell viability, the H2DCFDA (cell-permeant 2',7'-dichlorodihydrofluorescein diacetate) fluorescent probe to evaluate ROS induction, cell cycle analysis was performed using flow cytometry to measure cell death, and immunofluorescence with annexin/7-AAD (7-amino-actinomycin D), to assess the association of cell death with the ROS generation. TIBA decreases cell viability in a dose-dependent manner for the H460 and K562. However, VERO cells showed less response to the drug, with 70% viable cells after 72 h of treatment in the highest concentration of the drug. While the tumor cells with only 20% viable cells. Besides, tumor cells exhibited higher DNA fragmentation, compared to the renal line (VERO with 5% of fragmented DNA, H460 with 26%, and 56% in K562). Finally, TIBA-induced ROS increase and apoptosis in all lines, which is significantly decreased after treatment with the antioxidant N-acetyl-cysteine (NAC). These data demonstrate the relationship between the increased cellular oxidative stress and the anti-tumor action of the TIBA.
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Affiliation(s)
- Jéssica Sodré Silva de Abreu
- Nucleus of Multidisciplinary Research in Biology (Numpex-Bio), Universidade Federal Do Rio de Janeiro (UFRJ), Rio de Janeiro, Duque de Caxias, Brazil
| | - Janaína Fernandes
- Nucleus of Multidisciplinary Research in Biology (Numpex-Bio), Universidade Federal Do Rio de Janeiro (UFRJ), Rio de Janeiro, Duque de Caxias, Brazil.
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21
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Salem HT, Sabek EAS. Value of Coronary Calcium Scoring in Symptomatic and Asymptomatic Coronary Artery Disease Patients. Curr Med Imaging 2021; 17:517-523. [PMID: 33100206 DOI: 10.2174/1573405616666201023142030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 08/08/2020] [Accepted: 09/15/2020] [Indexed: 11/22/2022]
Abstract
AIM AND OBJECTIVE The study aimed to estimate the relationship between Coronary Calcium Scoring (CCS) and the presence of different degrees of obstructive coronary artery disease (CAD) to avoid unnecessary examinations and hence unnecessary radiation exposure and contrast injection. BACKGROUND Coronary Calcium Scoring (CCS) is a test that uses x-ray equipment to produce pictures of the coronary arteries to determine the degree of its narrowing by the build-up of calcified plaques. Despite the lack of definitive data linking ionizing radiation with cancer, the American Heart Association supports widely that practitioners of Computed tomography Coronary Angiography (CTCA) should keep "patient radiation doses as low as reasonably achievable but consistent with obtaining the desired medical information". METHODS Data obtained from 275 CTCA examinations were reviewed. Radiation effective doses were estimated for both CCS and CTCA, and measures to keep them as low as possible were presented. CCS and Framingham risk estimates were compared to obtain the final results of CTCA to detect sensitivity and specificity of each one in detecting obstructive lesions. RESULTS CCS is a strong discriminator for obstructive CAD with high sensitivity and specificity and correlates well with the degree of obstruction even more than Framingham risk estimate, which has high sensitivity and low specificity. CONCLUSION CCS helps to reduce the effective radiation dose if properly evaluated to skip unnecessary CTCA if obstructive lesions are unlikely, and this as a test does not use contrast material, thus harmful effect on the kidney will be avoided as most of the coronary atherosclerotic patients have renal problems.
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Affiliation(s)
- Hala T Salem
- Department of Health and Radiation Research, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt
| | - Eman A S Sabek
- Department of Health and Radiation Research, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt
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Rivera-Rodriguez A, Rinaldi-Ramos CM. Emerging Biomedical Applications Based on the Response of Magnetic Nanoparticles to Time-Varying Magnetic Fields. Annu Rev Chem Biomol Eng 2021; 12:163-185. [PMID: 33856937 DOI: 10.1146/annurev-chembioeng-102720-015630] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Magnetic nanoparticles are of interest for biomedical applications because of their biocompatibility, tunable surface chemistry, and actuation using applied magnetic fields. Magnetic nanoparticles respond to time-varying magnetic fields via physical particle rotation or internal dipole reorientation, which can result in signal generation or conversion of magnetic energy to heat. This dynamic magnetization response enables their use as tracers in magnetic particle imaging (MPI), an emerging biomedical imaging modality in which signal is quantitative of tracer mass and there is no tissue background signal or signal attenuation. Conversion of magnetic energy to heat motivates use in nanoscale thermal cancer therapy, magnetic actuation of drug release, and rapid rewarming of cryopreserved organs. This review introduces basic concepts of magnetic nanoparticle response to time-varying magnetic fields and presents recent advances in the field, with an emphasis on MPI and conversion of magnetic energy to heat.
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Affiliation(s)
- Angelie Rivera-Rodriguez
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, Florida 32611, USA; ,
| | - Carlos M Rinaldi-Ramos
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, Florida 32611, USA; , .,Department of Chemical Engineering, University of Florida, Gainesville, Florida 32611, USA
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23
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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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Saoud R, Abou Heidar N, Aizen J, Andolfi C, Galansky L, Ahmed O, Shalhav AL. Long term renal function following selective angioembolization for iatrogenic vascular lesions after partial nephrectomy: A matched case-control study. Investig Clin Urol 2021; 62:267-273. [PMID: 33834638 PMCID: PMC8100014 DOI: 10.4111/icu.20200510] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 12/21/2020] [Accepted: 12/30/2020] [Indexed: 01/09/2023] Open
Abstract
Purpose Partial nephrectomy is associated with a 1%–2% risk of renal iatrogenic vascular lesion (IVL) that are commonly treated with selective angioembolization (SAE). The theoretical advantage of SAE is preservation of renal parenchyma by targeting only the bleeding portion of the kidney. Our study aims to assess the long-term effect of SAE on renal function, especially that this intervention requires potentially nephrotoxic contrast load injection. Materials and Methods A retrospective review of patients undergoing partial nephrectomy between 2002 and 2018 was performed, and patients who developed IVL were identified. A 1:4 matched case-control analysis was performed. Paired t-test and χ2 test were used for continuous and categorical variables, respectively. Multivariable logistic and Cox proportional hazards regression analyses were used to identify risk factors and confounders for SAE and postoperative renal function. Results Eighteen patients found to have an IVL after partial nephrectomy were matched with 72 control patients. IVL's were more common in patients after minimally invasive partial nephrectomy (89% vs. 70%, p=0.008) and in those with higher RENAL nephrometry scores (8.8±2.0 vs. 6.5±1.8, p<0.001). On multivariable analysis, lower RENAL scores proved to decrease the odds of requiring postoperative SAE. No significant difference in renal function outcomes was seen at 24 months of follow-up after surgery. Conclusions SAE for the management of IVL following partial nephrectomy is a safe and efficient procedure with no significant impact on short or long-term renal function. Less complex renal tumors with lower RENAL scores are less likely to require postoperative SAE.
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Affiliation(s)
- Ragheed Saoud
- Section of Urology, Department of Surgery, The University of Chicago Medicine, Chicago, IL, USA.
| | - Nassib Abou Heidar
- Division of Urology, Department of Surgery, The American University of Beirut Medical Center, Beirut, Lebanon
| | - Joshua Aizen
- Section of Urology, Department of Surgery, The University of Chicago Medicine, Chicago, IL, USA
| | - Ciro Andolfi
- Section of Urology, Department of Surgery, The University of Chicago Medicine, Chicago, IL, USA
| | - Logan Galansky
- Pritzker School of Medicine, The University of Chicago, Chicago, IL, USA
| | - Osmanuddin Ahmed
- Department of Radiology, The University of Chicago Medicine, Chicago, IL, USA
| | - Arieh L Shalhav
- Section of Urology, Department of Surgery, The University of Chicago Medicine, Chicago, IL, USA
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Microfluidic-assisted synthesis of multifunctional iodinated contrast agent polymeric nanoplatforms. Int J Pharm 2021; 599:120447. [PMID: 33676989 DOI: 10.1016/j.ijpharm.2021.120447] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 02/13/2021] [Accepted: 02/26/2021] [Indexed: 02/07/2023]
Abstract
Contrast Induced Nephropathy is the most severe side-effect arising after non-ionic iodinated contrast agents (CAs) intravenous administration. The use of antioxidants (i.e., N-Acetylcysteine; NAC) is one of the attempted prevention approaches. Herein, we describe the microfluidic-assisted synthesis of iodinated polymeric nanoparticles (NPs) as new multifunctional blood pool CA. The aim of this research is to co-encapsulate Iohexol (IOX; iodinated CA) and NAC (preventive agent) into poly-D,L-lactide-co-glycolide (PLGA) and PEGylated-PLGA (PLGA-PEG) NPs to exploit CA diagnostic proprieties and NAC preventing antioxidant activity. A microfluidic-assisted nanoprecipitation protocol has been set-up for PLGA and PLGA-PEG NPs, evaluating the effect of formulation and microfluidic parameters by analysing the size, PDI and IOX and NAC encapsulation efficiency. The optimized NPs (PLGA-PEG, L:G 50:50, 5% PEG, Mw 90 kDa) formulated with a size of 67 ± 2.8 nm with PDI < 0.2, spherical shape, and an IOX and NAC encapsulation efficiency of 38% and 20%, respectively. The IOX and NAC encapsulation was confirmed by FTIR and DSC. In vitro release study showed an IOX retention into the polymeric matrix and NAC sustained release up to 24-48 h stating microfluidics as powerful tool for the formulation of multifunctional nanoplatforms. Finally, the protective effect of NPs and NAC were preliminary assessed on human kidney cells.
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26
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Motes AT, Ratanasrimetha P, Wongsaengsak S, Vorakunthada Y, Mingbunjerdsuk T, Pena C, Nugent K. Impact of Angiotensin-Converting Enzyme Inhibitors/Angiotensin Receptor Blockers on Renal Function in Chronic Kidney Disease Patients Undergoing Coronary Angiography. Cureus 2021; 13:e12808. [PMID: 33628676 PMCID: PMC7894381 DOI: 10.7759/cureus.12808] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Background: Cardiac catheterizations and coronary angiography are minimally invasive methods for studying the heart and the coronary arteries, using iodinated radiocontrast agents which can cause acute kidney injury (AKI). Angiotensin-converting enzyme (ACE) inhibitors and angiotensin receptor blockers (ARB) are widely used due to their well-established benefit in coronary artery disease and renal protection in diabetes mellitus. Renin-angiotensin-aldosterone system inhibitors can induce AKI in some patients. Method: This study analyzed the effect of radiocontrast media used for coronary angiography on renal function in patients with chronic kidney disease (CKD) stages 2-5 who also took ACE inhibitors/ARB medications. Information was collected from the electronic medical records of 116 cases to determine changes in serum creatinine following angiography. Result: The average age of patients was 65.2 ± 12.3 years. There were 89 men (76.7%) and 27 women (23.3%). Six patients had documented ACE inhibitor discontinuation, and one patient had documented ARB discontinuation prior to their procedures. Based on the criteria of an increase in serum creatinine (SCr) by ≥0.3 mg/dl within 48 hours, 19 cases (16.4%) had AKI. Based on the criteria of increasing in SCr to ≥ 1.5 times baseline, AKI developed in 2 cases (1.7%) on day 1, 4 cases (3.5%) on day 2, and 7 cases (6.0%) on day 3 after coronary angiography. Conclusion: This study suggests that the continuation of ACE inhibitors/ARB does not appear to have any important effect or association with changes in renal function, within one-month post angiography in patients with CKD stages 2-5.
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Affiliation(s)
- Arunee T Motes
- Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, USA
| | | | - Sariya Wongsaengsak
- Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, USA
| | - Yuttiwat Vorakunthada
- Internal Medicine/Pulmonary Medicine, Critical Care and Sleep Medicine, University of Arizona College of Medicine - Phoenix, Phoenix, USA
| | | | - Camillo Pena
- Internal Medicine/Nephrology, Texas Tech University Health Sciences Center, Lubbock, USA
| | - Kenneth Nugent
- Internal Medicine/Pulmonary and Critical Care Medicine, Texas Tech University Health Sciences Center, Lubbock, USA
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27
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Do early non-steroidal anti-inflammatory drugs for analgesia worsen acute kidney injury in critically ill trauma patients? An inverse probability of treatment weighted analysis. J Trauma Acute Care Surg 2020; 89:673-678. [PMID: 32649618 DOI: 10.1097/ta.0000000000002875] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Administration of nonsteroidal anti-inflammatory drugs (NSAIDs) for acute posttraumatic analgesia is increasing in popularity as an alternative to opioids despite reservations regarding its potential impact on the development of acute kidney injury (AKI). We hypothesized that early NSAID administration for analgesia would be associated with worsened renal function in severely injured trauma patients. METHODS A retrospective cohort study of severely injured adult (≥16 years) patients admitted to the intensive care unit with ≥1 rib fracture between 2010 and 2017 was performed. The early NSAID group was defined by receipt of one or more doses of NSAID within the first 48 hours of hospitalization. Acute kidney injury diagnosis and staging were defined by the Kidney Disease Improving Global Outcomes Guidelines. The primary outcome was a composite measure of two outcomes within the first week of hospitalization: (1) AKI progression (increase in AKI stage from arrival) or (2) death. Secondary outcomes included AKI progression, AKI improvement, AKI duration, and mortality. Inverse propensity of treatment weights were generated using clinically sound covariates suspected to be associated with the decision to give early NSAIDs and the primary or secondary outcomes. Multivariable analyses were performed adjusting for inverse propensity of treatment weights, covariates, and length of stay. RESULTS Of 2,340 patients, 268 (11%) were administered early NSAIDs. When compared with the control group, patients who received early NSAIDs were less severely injured. Renal outcomes were worse in the control group. Standardized mean differences were minimal after weighting. On multivariable analysis, administration of early NSAIDs was not associated with worsened renal outcomes or increased mortality. CONCLUSION Although only 11% of patients received early NSAIDs after trauma for analgesia, early NSAID exposure was not associated with increased AKI progression, decreased AKI improvement, prolonged duration, or increased mortality. Given the lack of evidence showing harm, early NSAIDs for analgesia may be underused for severely injured patients. LEVEL OF EVIDENCE Prognostic, level III, Therapeutic, level IV.
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28
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Gallitto E, Faggioli G, Vacirca A, Pini R, Mascoli C, Fenelli C, Logiacco A, Abualhin M, Gargiulo M. The benefit of combined carbon dioxide automated angiography and fusion imaging in preserving perioperative renal function in fenestrated endografting. J Vasc Surg 2020; 72:1906-1916. [DOI: 10.1016/j.jvs.2020.02.051] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 02/29/2020] [Indexed: 11/25/2022]
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29
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Koudrina A, O'Brien J, Garcia R, Boisjoli S, Kan PTM, Tsai EC, DeRosa MC. Assessment of Aptamer-Targeted Contrast Agents for Monitoring of Blood Clots in Computed Tomography and Fluoroscopy Imaging. Bioconjug Chem 2020; 31:2737-2749. [PMID: 33232126 DOI: 10.1021/acs.bioconjchem.0c00525] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Objective: Random formation of thrombi is classified as a pathological process that may result in partial or complete obstruction of blood flow and limited perfusion. Further complications include pulmonary embolism, thrombosis-induced myocardial infraction, ischemic stroke, and others. Location and full delineation of the blood clot are considered to be two clinically relevant aspects that could streamline proper diagnosis and treatment follow-up. In this work, we prepared two types of X-ray attenuating contrast formulations, using fibrinogen aptamer as the clot-seeking moiety. Methods: Two novel aptamer-targeted formulations were designed. Iodine-modified bases were directly incorporated into a fibrinogen aptamer (iodo-FA). Isothermal titration calorimetry was used to confirm that these modifications did not negatively impact target binding. Iodo-FA was tested for its ability to produce concentration-dependent contrast enhancement in a phantom CT. It was subsequently tested in vitro with clotted human and swine blood. This allowed for translation into ex vivo testing, using fluoroscopy. FA was also used to functionalize gold nanoparticles (FA-AuNPs), and contrast capabilities were confirmed. This formulation was tested in vitro using clotted human blood in a CT scan. Results: Unmodified FA and iodo-FA demonstrated a nearly identical affinity toward fibrin, confirming that base modifications did not impact target binding. Iodo-FA and FA-AuNPs both demonstrated excellent concentration-dependent contrast enhancement capabilities (40.5 HU mM-1 and 563.6 HU μM-1, respectively), which were superior to the clinically available agent, iopamidol. In vitro CT testing revealed that iodo-FA is able to penetrate into the blood clots, producing contrast enhancement throughout, while FA-AuNPs only accumulated on the surface of the clot. Iodo-FA was thereby translated to ex vivo testing, confirming target-binding associated accumulation of the contrast material at the location of the clot within the dilation of the external carotid artery. This resulted in a 34% enhancement of the clot. Conclusions: Both iodo-FA and FA-AuNPs were confirmed to be effective contrast formulations in CT. Targeting of fibrin, a major structural constituent of thrombi, with these novel contrast agents would allow for higher contrast enhancement and better clot delineation in CT and fluoroscopy.
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Affiliation(s)
- Anna Koudrina
- Department of Chemistry, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada
| | | | - Roberto Garcia
- Department of Neurosurgery, The University of Texas Medical Branch, 301 University Boulevard, Galveston, Texas 77555, United States
| | - Spencer Boisjoli
- Department of Chemistry, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada
| | - Peter T M Kan
- Department of Neurosurgery, The University of Texas Medical Branch, 301 University Boulevard, Galveston, Texas 77555, United States
| | - Eve C Tsai
- The Ottawa Hospital, Ottawa, ON K1Y 4E9, Canada.,Ottawa Hospital Research Institute, Ottawa, ON K1Y 4E9, Canada.,Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada
| | - Maria C DeRosa
- Department of Chemistry, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada
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El Andari J, Grimm D. Production, Processing, and Characterization of Synthetic AAV Gene Therapy Vectors. Biotechnol J 2020; 16:e2000025. [PMID: 32975881 DOI: 10.1002/biot.202000025] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 09/13/2020] [Indexed: 12/14/2022]
Abstract
Over the last two decades, gene therapy vectors based on wild-type Adeno-associated viruses (AAV) are safe and efficacious in numerous clinical trials and are translated into three approved gene therapy products. Concomitantly, a large body of preclinical work has illustrated the power and potential of engineered synthetic AAV capsids that often excel in terms of an organ or cell specificity, the efficiency of in vitro or in vivo gene transfer, and/or reactivity with anti-AAV immune responses. In turn, this has created a demand for new, scalable, easy-to-implement, and plug-and-play platform processes that are compatible with the rapidly increasing range of AAV capsid variants. Here, the focus is on recent advances in methodologies for downstream processing and characterization of natural or synthetic AAV vectors, comprising different chromatography techniques and thermostability measurements. To illustrate the breadth of this portfolio, two chimeric capsids are used as representative examples that are derived through forward- or backwards-directed molecular evolution, namely, AAV-DJ and Anc80. Collectively, this ever-expanding arsenal of technologies promises to facilitate the development of the next AAV vector generation derived from synthetic capsids and to accelerate their manufacturing, and to thus boost the field of human gene therapy.
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Affiliation(s)
- Jihad El Andari
- Dept. of Infectious Diseases/Virology, Medical Faculty, University of Heidelberg, 69120, Heidelberg, Germany.,BioQuant, Cluster of Excellence CellNetworks, University of Heidelberg, 69120, Heidelberg, Germany
| | - Dirk Grimm
- Dept. of Infectious Diseases/Virology, Medical Faculty, University of Heidelberg, 69120, Heidelberg, Germany.,BioQuant, Cluster of Excellence CellNetworks, University of Heidelberg, 69120, Heidelberg, Germany.,German Center for Infection Research (DZIF) and German Center for Cardiovascular Research (DZHK), partner site Heidelberg, 69120, Heidelberg, Germany
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31
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Boozari M, Hosseinzadeh H. Preventing contrast-induced nephropathy (CIN) with herbal medicines: A review. Phytother Res 2020; 35:1130-1146. [PMID: 33015894 DOI: 10.1002/ptr.6880] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 08/20/2020] [Accepted: 08/31/2020] [Indexed: 12/12/2022]
Abstract
OBJECTIVES Currently, the use of iodinated contrast media in diagnostic imaging has been increased in clinical medicine. Contrast-induced nephropathy (CIN) is an important adverse effect of contrast media injection. According to the significant role of oxidative stress in the pathophysiology of CIN, different herbal antioxidants have been used for the prevention of nephropathy in different studies. In this review, we discussed the preventive effects of herbal medicine and natural products against CIN. METHODS We searched the electronic databases or search engines including PubMed, Scopus, ISI, Google Scholar with search terms such as "Contrast-induced nephropathy" and "Herbal medicine," "Contrast acute kidney injury" AND "natural products" and similar headings such as plant and extract. RESULTS Known medicinal plants and active ingredients such as green tea, ginger, garlic, silymarin, curcumin, resveratrol, and thymoquinone have been examined for prophylactic effects or treatment of contrast media nephropathy. CONCLUSION Herbal medicines have promising effects in the laboratory-based studies for the prevention and/or treatment of CIN. However, more practical and completed clinical trials are needed to investigate the clinical benefits of natural products against CIN.
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Affiliation(s)
- Motahareh Boozari
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Hosseinzadeh
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.,Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
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32
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Koudrina A, DeRosa MC. Advances in Medical Imaging: Aptamer- and Peptide-Targeted MRI and CT Contrast Agents. ACS OMEGA 2020; 5:22691-22701. [PMID: 32954116 PMCID: PMC7495450 DOI: 10.1021/acsomega.0c02650] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 08/18/2020] [Indexed: 05/11/2023]
Abstract
Computed tomography (CT) and magnetic resonance imaging (MRI) are among the most well-established modalities in the field of noninvasive medical imaging. Despite being powerful tools, both suffer from a number of limitations and often fall short when it comes to full delineation of pathological tissues. Since its conception, molecular imaging has been commonly utilized to further the understanding of disease progression, as well as monitor treatment efficacy. This has naturally led to the advancement of the field of targeted imaging. Targeted imaging research is currently dominated by ligand-modified contrast media for applications in MRI and CT imaging. Although a plethora of targeting ligands exist, a fine balance between their size and target binding efficiency must be considered. This review will focus on aptamer- and peptide-modified contrast agents, outlining selected formulations developed in recent years while highlighting the advantages offered by these targeting ligands.
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Affiliation(s)
- Anna Koudrina
- Department of Chemistry, Carleton University, Ottawa, ON K1S
5B6, Canada
| | - Maria C. DeRosa
- Department of Chemistry, Carleton University, Ottawa, ON K1S
5B6, Canada
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Zhao N, Chen Z, Zhou Y, Xu Q, Xu Z, Tong W, Li L, Mao Q, Song Y, Jin J, Huang L, Azzalini L, Zhao X. Effects of a High Dose of the Contrast Medium Iodixanol on Renal Function in Patients Following Percutaneous Coronary Intervention. Angiology 2020; 72:145-152. [PMID: 32911955 DOI: 10.1177/0003319720953044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Iodixanol is associated with lower rates of contrast-induced acute kidney injury (CI-AKI). However, the effects of high volumes of iodixanol on renal function after percutaneous coronary intervention (PCI) have not been fully elucidated. This study evaluates the effects of high-dose (>300 mL) iodixanol on renal function within 72 hours of PCI. We retrospectively reviewed 676 consecutive patients who received high-dose (>300 mL) iodixanol during PCI between October 2015 and December 2017 in 4 centers. Logistic regression analysis was used to identify significant independent predictors for CI-AKI. The incidence of CI-AKI was 3.5% (23/651). In patients administered 300 to 500 mL and >500 mL iodixanol, the incidence of CI-AKI was 3.9% and 1.7%, respectively. In patients with an estimated glomerular filtration rate (eGFR) <60 mL/min/1.73 m2, the incidence of CI-AKI was 2.6%. In high-risk and very high-risk patients, stratified by the Mehran risk score, the incidence of CI-AKI was 3.3% and 4.3%, respectively. In patients received high-dose iodixanol (>300 mL), logistic regression analysis demonstrated that female sex, chronic kidney disease, and eGFR were independent risk factors for CI-AKI, but contrast volume was not. The administration of high (300-500 mL) and very high (>500 mL) dose of iodixanol is associated with low rates of CI-AKI.
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Affiliation(s)
- Ning Zhao
- Institution of Cardiovascular Research, Xinqiao Hospital, 105785Third Military Medical University (Army Medical University), Chongqing, China
| | - Zaiyan Chen
- Institution of Cardiovascular Research, Xinqiao Hospital, 105785Third Military Medical University (Army Medical University), Chongqing, China
| | - Yinpin Zhou
- The Fuling Central Hospital of Chongqing, Chongqing, China
| | - Qiang Xu
- The Fifth people's Hospital of Chongqing, Chongqing, China
| | - Zhonglin Xu
- The Ninth people's Hospital of Chongqing, Chongqing, China
| | - Wuyang Tong
- Institution of Cardiovascular Research, Xinqiao Hospital, 105785Third Military Medical University (Army Medical University), Chongqing, China
| | - Lufeng Li
- Institution of Cardiovascular Research, Xinqiao Hospital, 105785Third Military Medical University (Army Medical University), Chongqing, China
| | - Qi Mao
- Institution of Cardiovascular Research, Xinqiao Hospital, 105785Third Military Medical University (Army Medical University), Chongqing, China
| | - Yaoming Song
- Institution of Cardiovascular Research, Xinqiao Hospital, 105785Third Military Medical University (Army Medical University), Chongqing, China
| | - Jun Jin
- Institution of Cardiovascular Research, Xinqiao Hospital, 105785Third Military Medical University (Army Medical University), Chongqing, China
| | - Lan Huang
- Institution of Cardiovascular Research, Xinqiao Hospital, 105785Third Military Medical University (Army Medical University), Chongqing, China
| | - Lorenzo Azzalini
- Division of Cardiology, VCU Health Pauley Heart Center, 6889Virginia Commonwealth University, Richmond, VA, USA
| | - Xiaohui Zhao
- Institution of Cardiovascular Research, Xinqiao Hospital, 105785Third Military Medical University (Army Medical University), Chongqing, China
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Renin-angiotensin-aldosterone system inhibition decreased contrast-associated acute kidney injury in chronic kidney disease patients. J Formos Med Assoc 2020; 120:641-650. [PMID: 32762878 DOI: 10.1016/j.jfma.2020.07.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 07/06/2020] [Accepted: 07/14/2020] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND/PURPOSE Chronic kidney disease (CKD) is a risk factor for contrast associated acute kidney injury (CA-AKI). The risk of renin-angiotensin-aldosterone system inhibitor (RASi) use in patients with CKD before the administration of contrast is not clear. METHODS In this nested case-control study, 8668 patients received contrast computed tomography (CT) from 2013 to 2018 during index administration in a multicenter hospital cohort. The identification of AKI is based on the Kidney Disease: Improving Global Outcomes (KDIGO) serum creatinine criteria within 48 h after contrast medium used. RESULTS Finally, 986 patients (age, 63.36 ± 12.22; men, 72.92%) with CKD (estimated glomerular filtration rate (eGFR) = 35.0 ± 19.8 mL/min/1.73 m2) were eligible for analysis. After the index date, RASi users (n = 315) were less likely to develop CA-AKI (13.65% vs 30.4%, p < 0.001), and had a lower hospital mortality (8.25% vs 19.23%, p < 0.001) compared with non-users. The pre-contrast use of RASi decrease the risk of AKI (OR, 0.342, p < 0.001) and hospital mortality (OR, 0.602, p = 0.045). Even a few defined daily doses (DDDs) of RASi treatment, more than 0.02 prior to contrast CT could attenuate CA-AKI. The hospital mortality was higher in RASi non-users if their eGFR value was more than 17.9 mL/min/1.73 m2. CONCLUSION RASi use in patients with CKD prior to contrast CT has the potential to mitigate the incidence of AKI and hospital mortality. Even a low dose of RASi will noticeably decrease the risk of AKI and will not increase the risk of hyperkalemia.
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Anti-Apoptotic and Antioxidant Effects of 3- Epi-Iso -Seco-Tanapartholide Isolated from Artemisia Argyi Against Iodixanol-Induced Kidney Epithelial Cell Death. Biomolecules 2020; 10:biom10060867. [PMID: 32517090 PMCID: PMC7356648 DOI: 10.3390/biom10060867] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 05/22/2020] [Accepted: 06/03/2020] [Indexed: 12/12/2022] Open
Abstract
Iodixanol is a non-ionic iso-osmolar contrast agent, but it is a risk factor for kidney damage and increases morbidity and mortality. In this study, we investigated the effect of 9 sesquiterpenes isolated from mugwort (Artemisia argyi) in contrast agent-induced cytotoxicity in LLC-PK1 cells. Cells were exposed to nine sesquiterpene compounds for 2 h, followed by incubation with iodixanol for 3 h. Cell viability was assessed using the Ez-Cytox assay. The level of reactive oxygen species was measured using 2′,7′-dichlorodihydrofluorescein diacetate staining. Apoptotic cell death was detected using annexin V/PI staining. In addition, immunofluorescence staining and western blotting were performed using antibodies against proteins related to apoptosis, oxidative stress, and MAPK pathways. The most effective 3-epi-iso-seco-tanapartholide (compound 8) among the 9 sesquiterpene compounds protected LLC-PK1 cells from iodixanol-induced cytotoxicity, oxidative stress, and apoptotic cell death. Pretreatment with compound 8 reversed iodixanol-induced increases in the expression of JNK, ERK, p38, Bax, caspase-3, and caspase-9. It also reversed the iodixanol-induced decrease in Bcl-2 expression. Furthermore, pretreatment with compound 8 caused nuclear translocation of Nrf2 and upregulated HO-1 via the Nrf2 pathway in iodixanol-treated LLC-PK1 cells. Thus, we demonstrated here that compound 8 isolated from A. argyi has the potential to effectively prevent iodixanol-induced kidney epithelial cell death via the caspase-3/MAPK pathways and HO-1 via the Nrf2 pathway.
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Bathla G, Priya S, Samaniego E, Deo SK, Fain NH, Soni N, Ward C, Derdeyn CP. Cerebral computed tomographic angiography using third-generation reconstruction algorithm provides improved image quality with lower contrast and radiation dose. Neuroradiology 2020; 62:965-970. [PMID: 32277245 DOI: 10.1007/s00234-020-02406-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 03/13/2020] [Indexed: 02/03/2023]
Abstract
PURPOSE We hypothesized that cerebral CT angiogram performed using third-generation reconstruction algorithm and lower contrast dose-low-kVp technique (LD-CTA) will provide better image quality when compared with regular contrast dose CTA at 120 kVp using a sinogram-affirmed iterative reconstruction algorithm (ND-CTA). METHODS Retrospective imaging review of 100 consecutive patients (50 each in LD- and ND-CTA groups). Two readers independently assessed the subjective image quality across multiple vascular segments on a Likert-like scale. Differences in contrast dose, CT dose index (CTDI), and dose length product (DLP) were compared using Mann-Whitney U test. Fisher's exact test was used to compare subjective image quality. Similarly, contrast- and signal-to-noise ratios (CNR and SNR) were compared in the mid-M1 MCA vessels bilaterally and the mid-basilar artery using Mann-Whitney U test. Interclass correlation coefficient (ICC) was calculated for the SNR/CNR values. RESULTS Both observers showed excellent correlation in subjective image quality (mean percentage agreement of 95.2% for group 1 versus 89.2% for group 2). LD-CTA group showed better SNR and CNR (p < 0.0001) for both MCA vessels and the mid-basilar artery. Interclass correlation coefficient showed moderate correlation (0.51-0.63) between readers. LD-CTA group also used lower contrast (49 cc versus 97 cc in ND-CTA) and had lower radiation exposure (DLP/CTDI for both groups 268.3/80.7 vs 519.5/36.08, both < 0.0001). CONCLUSION Next-generation reconstruction algorithm and low-kV scanning significantly improved image quality on cerebral CTA images despite lower contrast dose and, in addition, have lower radiation exposure.
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Affiliation(s)
- Girish Bathla
- Department of Radiology, University of Iowa Hospitals and Clinics, 200 Hawkins Drive, Iowa City, IA, 52242, USA.
| | - Sarv Priya
- Department of Radiology, University of Iowa Hospitals and Clinics, 200 Hawkins Drive, Iowa City, IA, 52242, USA
| | - Edgar Samaniego
- Department of Radiology, University of Iowa Hospitals and Clinics, 200 Hawkins Drive, Iowa City, IA, 52242, USA
- Department of Neurology, University of Iowa Hospitals and Clinics, Iowa City, IA, USA
| | - Simmi K Deo
- Department of Radiology, University of Iowa Hospitals and Clinics, 200 Hawkins Drive, Iowa City, IA, 52242, USA
| | - Nicholas H Fain
- Department of Radiology, University of Iowa Hospitals and Clinics, 200 Hawkins Drive, Iowa City, IA, 52242, USA
| | - Neetu Soni
- Department of Radiology, University of Iowa Hospitals and Clinics, 200 Hawkins Drive, Iowa City, IA, 52242, USA
| | - Caitlin Ward
- Department of Biostatistics, University of Iowa, Iowa City, IA, USA
| | - Colin P Derdeyn
- Department of Radiology, University of Iowa Hospitals and Clinics, 200 Hawkins Drive, Iowa City, IA, 52242, USA
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37
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Which patients are prone to undergo disproportionate recurrent CT imaging and should we worry? Eur J Radiol 2020; 125:108898. [DOI: 10.1016/j.ejrad.2020.108898] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 01/08/2020] [Accepted: 02/11/2020] [Indexed: 01/11/2023]
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Gupta A, Dosekun AK, Kumar V. Carbon dioxide-angiography for patients with peripheral arterial disease at risk of contrast-induced nephropathy. World J Cardiol 2020; 12:76-90. [PMID: 32184976 PMCID: PMC7061263 DOI: 10.4330/wjc.v12.i2.76] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Revised: 01/03/2020] [Accepted: 01/13/2020] [Indexed: 02/06/2023] Open
Abstract
Patients with peripheral arterial disease (PAD) and critical limb ischemia are at risk for limb amputation and require urgent management to restore blood flow. Patients with PAD often have several comorbidities, including chronic kidney disease, diabetes mellitus, and hypertension. Diagnostic and interventional angiography using iodinated contrast agents provides excellent image resolution but can be associated with contrast-induced nephropathy (CIN). The use of carbon dioxide (CO2) as a contrast agent reduces the volume of iodine contrast required for angiography and reduces the incidence of CIN. However, CO2 angiography has been underutilized due to concerns regarding safety and image quality. Modern CO2 delivery systems with advanced digital subtraction angiography techniques and hybrid angiography have improved imaging accuracy and reduced the incidence of CIN. Awareness of the need for optimal imaging conditions, contraindications, and potential complications have improved the safety of CO2 angiography. This review aims to highlight current technological advances in the delivery of CO2 in vascular angiography for patients with PAD and critical limb ischemia, which result in limb preservation while preventing kidney damage.
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Affiliation(s)
- Amol Gupta
- Department of Cardiology, Heart, Vascular and Leg Center, Bakersfield, CA 93309, United States
| | | | - Vinod Kumar
- Department of Cardiology, Heart, Vascular and Leg Center, Bakersfield, CA 93309, United States
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Di Lullo L, Bellasi A, Guastamacchia E, Triggiani V, Ronco C, Lavalle C, Di Iorio BR, Russo D, Cianciolo G, La Manna G, Settembrini S. Glifozines and cardiorenal outcomes. Minerva Cardioangiol 2020; 68:188-196. [PMID: 32083429 DOI: 10.23736/s0026-4725.20.05078-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Diabetes mellitus, with its complications, is one of the major health problems in economically developed countries and its prevalence is constantly increasing. Kidneys and heart involvement represent main comorbidities in diabetic patients often leading to organ failure. The treatments available until a few years ago are often associated with hypoglycemia, weight gain, gastro-intestinal disorders and other side effects together with serious adverse effects on renal function. The new frontiers of diabetic cardionephropathy treatment are mainly focused on delay of heart and renal failure both on diabetic and nondiabetic patients ad it was shown by last data reports. In the following review, we will focus on Gliflozins, one of the newest classes of hypoglycemic drugs that have shown to hold peculiar pharmacological properties in managing cardiac and renal complications.
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Affiliation(s)
- Luca Di Lullo
- Department of Nephrology and Dialysis, L. Parodi-Delfino Hospital, Colleferro, Rome, Italy -
| | - Antonio Bellasi
- Department of Research, Innovation, Brand Reputation, Bergamo Hospital, ASST Papa Giovanni XXIII, Bergamo, Italy
| | | | - Vincenzo Triggiani
- Interdisciplinar Department of Medicine, University of Bari, Bari, Italy
| | - Claudio Ronco
- International Renal Research Institute, S. Bortolo Hospital, Vicenza, Italy
| | - Carlo Lavalle
- Department of Cardiovascular Disease, Umberto I Polyclinic Hospital, Rome, Italy
| | - Biagio R Di Iorio
- Department of Nephrology and Dialysis, "Antonio Cardarelli" Hospital, Naples, Italy
| | - Domenico Russo
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Giuseppe Cianciolo
- Unit of Nephrology, Dialysis and Transplantation, Department of Experimental Diagnostic and Specialty Medicine, S. Orsola Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Gaetano La Manna
- Unit of Nephrology, Dialysis and Transplantation, Department of Experimental Diagnostic and Specialty Medicine, S. Orsola Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Silvio Settembrini
- Department of Diabetology and Metabolic Disease, Pellegrini Hospital, Naples, Italy
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40
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Li X, Zhang W, Liu J, Gonzalez L, Liu D, Zhang L, Dardik A, Shu C. Contrast-Induced Kidney Nephropathy in Thoracic Endovascular Aortic Repair: A 2-Year Retrospective Study in 470 Patients. Angiology 2019; 71:242-248. [PMID: 31829038 DOI: 10.1177/0003319719893578] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
We identified changes in renal function in patients who underwent thoracic endovascular aortic repair (TEVAR) and the factors that may influence renal function. Information on 470 consecutive patients was collected. Kidney function and contrast volume were recorded. Unpaired t test, Spearman correlation, and logistic regression were used for statistical analysis. A Kaplan-Meier curve helped clarify our follow-up findings. Mean contrast volume was 90.5 ± 21.2 mL. The change in serum creatinine was significantly correlated with (1) preexisting renal pathology (P = .033) and (2) aortic dissection (AD) involving the renal arteries (P = .019). The change in serum urea nitrogen (ΔBUN) was only significantly correlated with AD involving the renal arteries (P = .0348). Contrast volume (P = .036, odds ratio = 1.010, 95% confidence interval: 1.001-1.019) was a risk factor for contrast-induced nephropathy (CIN) after TEVAR. Survival rates and renal failure rates among no CIN, CIN, and CIN-acute kidney injury groups at longest 27 months follow-up were significantly different. Creatinine and BUN were generally elevated post-TEVAR. Contrast-induced nephropathy post-TEVAR may correlate with renal comorbidities and renal artery involvement. Contrast volume is risk factor for CIN after TEVAR. More attention needs to be paid to patient renal function during follow-up.
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Affiliation(s)
- Xin Li
- Department of Vascular Surgery, the Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China.,Vascular Disease Institute, Central South University, Changsha, Hunan, People's Republic of China
| | - Weichang Zhang
- Department of Vascular Surgery, the Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China.,Vascular Disease Institute, Central South University, Changsha, Hunan, People's Republic of China
| | - Jia Liu
- Department of Vascular Surgery, the Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China.,Vascular Disease Institute, Central South University, Changsha, Hunan, People's Republic of China.,Department of Surgery and the Interdepartmental Program in Vascular Biology & Therapeutics, Yale University School of Medicine, New Haven, CT, USA
| | - Luis Gonzalez
- Department of Surgery and the Interdepartmental Program in Vascular Biology & Therapeutics, Yale University School of Medicine, New Haven, CT, USA
| | - Dingxiao Liu
- Department of Vascular Surgery, the Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China.,Vascular Disease Institute, Central South University, Changsha, Hunan, People's Republic of China
| | - Lei Zhang
- Department of Vascular Surgery, the Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China.,Vascular Disease Institute, Central South University, Changsha, Hunan, People's Republic of China
| | - Alan Dardik
- Department of Surgery and the Interdepartmental Program in Vascular Biology & Therapeutics, Yale University School of Medicine, New Haven, CT, USA
| | - Chang Shu
- Department of Vascular Surgery, the Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China.,Vascular Disease Institute, Central South University, Changsha, Hunan, People's Republic of China.,State Key Laboratory of Cardiovascular Disease, Center of Vascular Surgery, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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41
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Lee CJ, Gardiner BS, Evans RG, Smith DW. Analysis of the critical determinants of renal medullary oxygenation. Am J Physiol Renal Physiol 2019; 317:F1483-F1502. [DOI: 10.1152/ajprenal.00315.2019] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
We have previously developed a three-dimensional computational model of oxygen transport in the renal medulla. In the present study, we used this model to quantify the sensitivity of renal medullary oxygenation to four of its major known determinants: medullary blood flow (MBF), medullary oxygen consumption rate (V̇o2,M), hemoglobin (Hb) concentration in the blood, and renal perfusion pressure. We also examined medullary oxygenation under special conditions of hydropenia, extracellular fluid volume expansion by infusion of isotonic saline, and hemodilution during cardiopulmonary bypass. Under baseline (normal) conditions, the average medullary tissue Po2 predicted for the whole renal medulla was ~30 mmHg. The periphery of the interbundle region in the outer medulla was identified as the most hypoxic region in the renal medulla, which demonstrates that the model prediction is qualitatively accurate. Medullary oxygenation was most sensitive to changes in renal perfusion pressure followed by Hb, MBF, and V̇o2,M, in that order. The medullary oxygenation also became sensitized by prohypoxic changes in other parameters, leading to a greater fall in medullary tissue Po2 when multiple parameters changed simultaneously. Hydropenia did not induce a significant change in medullary oxygenation compared with the baseline state, while volume expansion resulted in a large increase in inner medulla tissue Po2 (by ~15 mmHg). Under conditions of cardiopulmonary bypass, the renal medulla became severely hypoxic, due to hemodilution, with one-third of the outer stripe of outer medulla tissue having a Po2 of <5 mmHg.
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Affiliation(s)
- Chang-Joon Lee
- College of Science, Health, Engineering and Education, Murdoch University, Perth, Western Australia, Australia
- Faculty of Engineering and Mathematical Sciences, The University of Western Australia, Perth, Western Australia, Australia
| | - Bruce S. Gardiner
- College of Science, Health, Engineering and Education, Murdoch University, Perth, Western Australia, Australia
- Faculty of Engineering and Mathematical Sciences, The University of Western Australia, Perth, Western Australia, Australia
| | - Roger G. Evans
- Cardiovascular Disease Program, Biomedicine Discovery Institute and Department of Physiology, Monash University, Melbourne, Victoria, Australia
| | - David W. Smith
- Faculty of Engineering and Mathematical Sciences, The University of Western Australia, Perth, Western Australia, Australia
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Nishida M, Kubo S, Morishita Y, Nishikawa K, Ikeda K, Itoi T, Hosoi H. Kidney injury biomarkers after cardiac angiography in children with congenital heart disease. CONGENIT HEART DIS 2019; 14:1087-1093. [PMID: 31605509 DOI: 10.1111/chd.12853] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Accepted: 09/26/2019] [Indexed: 11/28/2022]
Abstract
OBJECTIVE This study aims to investigate the changes in renal function and levels of urinary biomarkers before and after cardiac angiography in children with congenital heart disease (CHD). SETTING Children with CHD are at a risk for kidney injury during contrast exposure in cardiac angiography. OUTCOME MEASURES We measured urinary protein, albumin, N-acetyl-β-D-glucosaminidase (NAG), β2-microglobulin (BMG), and liver-type fatty acid-binding protein (L-FABP) levels, as well as serum creatinine and cystatin C levels, before and after cardiac angiography in 33 children with CHD. RESULTS No significant decrease was noted in either the creatinine-based or cystatin C-based estimated glomerular filtration rate at 24 hours after angiography compared with that before angiography. Urinary protein, NAG, BMG, and L-FABP levels were significantly increased at 24 hours after angiography, all of which returned to baseline levels at more than 7 days after angiography. An increase in urinary level of protein, albumin, NAG, or BMG was mostly associated with increased urinary L-FABP level. An increase in both urinary BMG and L-FABP, but not that in urinary L-FABP alone, was associated with increased levels of urinary protein and NAG, as well as the greater dose of contrast media. CONCLUSIONS Transient increases of kidney injury biomarkers following cardiac angiography are not necessarily associated with the impairment of renal function in a short time period; however, the increase in urinary protein, albumin, NAG, or BMG level may indicate greater stresses to the kidneys than the increase in urinary L-FABP alone in children with CHD.
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Affiliation(s)
- Masashi Nishida
- Department of Pediatrics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Shingo Kubo
- Department of Pediatrics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yuma Morishita
- Department of Pediatrics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kosuke Nishikawa
- Department of Pediatrics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kazuyuki Ikeda
- Department of Pediatrics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Toshiyuki Itoi
- Department of Pediatrics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hajime Hosoi
- Department of Pediatrics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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Production of adeno-associated virus vectors for in vitro and in vivo applications. Sci Rep 2019; 9:13601. [PMID: 31537820 PMCID: PMC6753157 DOI: 10.1038/s41598-019-49624-w] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 07/11/2019] [Indexed: 12/14/2022] Open
Abstract
Delivering and expressing a gene of interest in cells or living animals has become a pivotal technique in biomedical research and gene therapy. Among viral delivery systems, adeno-associated viruses (AAVs) are relatively safe and demonstrate high gene transfer efficiency, low immunogenicity, stable long-term expression, and selective tissue tropism. Combined with modern gene technologies, such as cell-specific promoters, the Cre/lox system, and genome editing, AAVs represent a practical, rapid, and economical alternative to conditional knockout and transgenic mouse models. However, major obstacles remain for widespread AAV utilization, such as impractical purification strategies and low viral quantities. Here, we report an improved protocol to produce serotype-independent purified AAVs economically. Using a helper-free AAV system, we purified AAVs from HEK293T cell lysates and medium by polyethylene glycol precipitation with subsequent aqueous two-phase partitioning. Furthermore, we then implemented an iodixanol gradient purification, which resulted in preparations with purities adequate for in vivo use. Of note, we achieved titers of 1010-1011 viral genome copies per µl with a typical production volume of up to 1 ml while requiring five times less than the usual number of HEK293T cells used in standard protocols. For proof of concept, we verified in vivo transduction via Western blot, qPCR, luminescence, and immunohistochemistry. AAVs coding for glutaredoxin-1 (Glrx) shRNA successfully inhibited Glrx expression by ~66% in the liver and skeletal muscle. Our study provides an improved protocol for a more economical and efficient purified AAV preparation.
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de Souza Santos V, Peters B, Côco LZ, Alves GM, de Assis ALEM, Nogueira BV, Meyrelles SS, Porto ML, Vasquez EC, Campagnaro BP, Pereira TMC. Silymarin protects against radiocontrast-induced nephropathy in mice. Life Sci 2019; 228:305-315. [PMID: 31047898 DOI: 10.1016/j.lfs.2019.04.061] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Silymarin, an extract from Silybum marianum (milk thistle) containing a standardized mixture of flavonolignans that ameliorates some types of liver disease and, more recently, kidney damage, could be used for the ROS-scavenging effect of these antioxidants. Furthermore, contrast-induced nephropathy (CIN) is an iatrogenic impairment of renal function in patients subjected to angiographic procedures for which there is not yet a successful preventative treatment. Recent evidence has shown that this event is related to tubular/vascular injury activated mainly by oxidative stress. However, whether this bioavailable and pharmacologically safe extract protects against CIN is not clear. We proposed to evaluate the possible protective role of the antioxidant silymarin in an experimental model of CIN. Adult male Swiss mice were separated into 6 groups and pretreated orally with silymarin (50, 200 and 300 mg/kg), N-acetylcysteine (200 mg/kg) or vehicle for 5 days before the CIN and control groups. Renal function was analyzed by plasma creatinine, urea and cystatin C levels. Additionally, blood reactive oxygen species (ROS) were evaluated using ROS bioavailability, protein oxidation and DNA damage. Renal oxidative damage was evaluated using apoptosis/cell viability assays and histological analysis. We showed that silymarin preserved renal function and decreased systemic and renal oxidative damage (antigenotoxic and antiapoptotic properties, respectively) in a dose-dependent manner and was superior to conventional treatment with N-acetylcysteine. Histologically, silymarin treatment also had beneficial effects on renal glomerular and tubular injuries. Therefore, silymarin prophylaxis may be an interesting strategy for the prevention of CIN.
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Affiliation(s)
| | - Beatriz Peters
- Pharmaceutical Sciences Graduate Program, Vila Velha University (UVV), Vila Velha, ES, Brazil
| | - Larissa Zambom Côco
- Pharmaceutical Sciences Graduate Program, Vila Velha University (UVV), Vila Velha, ES, Brazil
| | - Gisele Maziero Alves
- Pharmaceutical Sciences Graduate Program, Vila Velha University (UVV), Vila Velha, ES, Brazil
| | | | - Breno Valentim Nogueira
- Department of Morphology, Health Sciences Center, Federal University of Espirito Santo, Vitoria, Brazil
| | - Silvana Santos Meyrelles
- Laboratory of Translational Physiology, Health Sciences Center, Federal University of Espirito Santo, Vitoria, Brazil
| | - Marcella Leite Porto
- Federal Institute of Education, Science and Technology (IFES), Vila Velha, ES, Brazil
| | - Elisardo Corral Vasquez
- Pharmaceutical Sciences Graduate Program, Vila Velha University (UVV), Vila Velha, ES, Brazil; Laboratory of Translational Physiology, Health Sciences Center, Federal University of Espirito Santo, Vitoria, Brazil
| | | | - Thiago Melo Costa Pereira
- Pharmaceutical Sciences Graduate Program, Vila Velha University (UVV), Vila Velha, ES, Brazil; Federal Institute of Education, Science and Technology (IFES), Vila Velha, ES, Brazil.
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45
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SGLT2 Inhibitors: Nephroprotective Efficacy and Side Effects. ACTA ACUST UNITED AC 2019; 55:medicina55060268. [PMID: 31212638 PMCID: PMC6630922 DOI: 10.3390/medicina55060268] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 05/30/2019] [Accepted: 06/06/2019] [Indexed: 02/06/2023]
Abstract
The burden of diabetic kidney disease (DKD) has increased worldwide in the last two decades. Besides the growth of diabetic population, the main contributors to this phenomenon are the absence of novel nephroprotective drugs and the limited efficacy of those currently available, that is, the inhibitors of renin-angiotensin system. Nephroprotection in DKD therefore remains a major unmet need. Three recent trials testing effectiveness of sodium-glucose cotransporter 2 inhibitors (SGLT2-i) have produced great expectations on this therapy by consistently evidencing positive effects on hyperglycemia control, and more importantly, on the cardiovascular outcome of type 2 diabetes mellitus. Notably, these trials also disclosed nephroprotective effects when renal outcomes (glomerular filtration rate and albuminuria) were analyzed as secondary endpoints. On the other hand, the use of SGLT2-i can be potentially associated with some adverse effects. However, the balance between positive and negative effects is in favor of the former. The recent results of Canagliflozin and Renal Endpoints in Diabetes with Established Nephropathy Clinical Evaluation Study and of other trials specifically testing these drugs in the population with chronic kidney disease, either diabetic or non-diabetic, do contribute to further improving our knowledge of these antihyperglycemic drugs. Here, we review the current state of the art of SGLT2-i by addressing all aspects of therapy, from the pathophysiological basis to clinical effectiveness.
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46
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[Kidney function in contrast media-enhanced imaging]. Radiologe 2019; 59:425-434. [PMID: 31016343 DOI: 10.1007/s00117-019-0529-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND The potential adverse reactions to contrast media-enhanced imaging regularly offer challenges in decision-making for nephrologists and radiologists. OBJECTIVE The clinical pictures of contrast media-induced acute kidney injury (CI-AKI) and nephrogenic systemic fibrosis (NSF) were evaluated, which are both caused by contrast media and closely linked to the kidney function. MATERIAL AND METHODS The literature in PubMed and Medline was searched for the terms "kidney function" and "contrast media" and complemented by our own experiences. RESULTS While there is an ongoing re-evaluation of the clinical relevance of CI-AKI, no new cases of NSF have recently been reported under consideration of certain preventive interventions and very restricted use of gadolinium-based contrast agents. CONCLUSION Considering the results of the latest clinical research, the potential risk of CI-AKI has been overestimated for a long time and should no longer outweigh the diagnostic benefit of contrast media-enhanced imaging. Nevertheless, the most effective prophylaxis for CI-AKI is the avoidance of unnecessary administration of contrast media.
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47
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Functionalization of endovascular devices with superparamagnetic iron oxide nanoparticles for interventional cardiovascular magnetic resonance imaging. Biomed Microdevices 2019; 21:38. [DOI: 10.1007/s10544-019-0393-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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48
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Zhang Z, Shao X, Jiang N, Mou S, Gu L, Li S, Lin Q, He Y, Zhang M, Zhou W, Ni Z. Caspase-11-mediated tubular epithelial pyroptosis underlies contrast-induced acute kidney injury. Cell Death Dis 2018; 9:983. [PMID: 30250284 PMCID: PMC6155357 DOI: 10.1038/s41419-018-1023-x] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 08/06/2018] [Accepted: 08/27/2018] [Indexed: 12/17/2022]
Abstract
Contrast-induced acute kidney injury (CI-AKI) is a serious complication in patients after administration of iodinated contrast media and is associated with a significant high risk for severe renal failure and death due to the wholesale necrosis of the tubules and interstitial inflammation. Pyroptosis is a form of programmed lytic cell death that is triggered by inflammatory caspases, but little is known about its role in tubular epithelial cell (TEC) death and contrast-induced acute kidney injury. Here we show that systemic exposure to contrast media causes severe tubular epithelial pyroptosis that is mediated by the inflammatory caspases, caspases 4/5 in human TECs, or the murine homolog caspase-11 in mice in vivo and in mouse TECs in vitro. Knockdown of caspase-4/5 preserved human TECs from cell death and reduced the release of mature IL-1β, and in caspase-11-deficient mice, contrast-induced acute kidney injury was abrogated, indicating a central role for caspase-11 in acute kidney injury. In addition, deletion of caspase-11 in TECs reduced Gsdmd cleavage, which is the key process for execution of pyroptosis. These results establish the requisite role of epithelial pyroptosis in contrast-induced acute kidney injury and suggest that epithelial inflammatory caspases are an important therapeutic target for acute kidney injury.
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Affiliation(s)
- Zhen Zhang
- Department of Nephrology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Xinghua Shao
- Department of Nephrology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Na Jiang
- Department of Nephrology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Shan Mou
- Department of Nephrology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Leyi Gu
- Department of Nephrology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Shu Li
- Department of Nephrology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Qisheng Lin
- Department of Nephrology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Yipei He
- Department of Nephrology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Minfang Zhang
- Department of Nephrology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Wenyan Zhou
- Department of Nephrology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Zhaohui Ni
- Department of Nephrology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China.
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Cai L, Bai X, Lei H, Wu H, Liu Y, Zhu Q, Zhang S, Liu Y, Lin Q, Chen J, Zhang B, He G, Geng Q, Huang M, Zhong S. High Plasma Exposure of Statins Associated With Increased Risk of Contrast-Induced Acute Kidney Injury in Chinese Patients With Coronary Artery Disease. Front Pharmacol 2018; 9:427. [PMID: 29760658 PMCID: PMC5936793 DOI: 10.3389/fphar.2018.00427] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 04/11/2018] [Indexed: 01/05/2023] Open
Abstract
The role of statins in reducing the incidence of contrast-induced acute kidney injury (CI-AKI) remains controversial. We sought to evaluate the association between CI-AKI and high plasma exposure of statins in coronary artery disease (CAD) patients undergoing coronary angiography (CAG). This association was first evaluated in 1,219 patients with CAD receiving atorvastatin (AT) therapy and validated in 635 patients receiving rosuvastatin (RST) therapy. The plasma concentrations of statins were quantified using validated UPLC-MS/MS methods and CI-AKI incidence was assessed during the first 48 h postoperatively. Among all participants (n = 1,854), AKI occurred in 57 of 1219 (4.7%) in the AT cohort and 30 of 635 (4.7%) in the RST cohort. High plasma AT-all exposure was associated with increased risk of CI-AKI (odds ratio [OR]: 2.265; 95% confidence interval [CI]: 1.609–3.187; p < 0.0001). Plasma AT-all concentration in the CI-AKI group (22.40 ± 24.63 ng/mL) was 2.6-fold higher than that in the control group (8.60 ± 9.65 ng/mL). High plasma RST exposure also significantly increased the risk of CI-AKI (OR: 2.281; 95% CI: 1.441–3.612; p = 0.0004). We further divided patients into two subgroups for each statin according to baseline renal function, and association between high plasma statin exposure and CI-AKI still remained highly significant in both subgroups. This study suggests for the first time that high plasma exposure of statins may significantly increase the risk of CI-AKI. Statins should be used with greater caution in CAD patients undergoing CAG to reduce the occurrence of CI-AKI.
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Affiliation(s)
- Liyun Cai
- Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,School of Medicine, South China University of Technology, Guangzhou, China
| | - Xue Bai
- Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,School of Medicine, South China University of Technology, Guangzhou, China.,Laboratory of Drug Metabolism and Pharmacokinetics, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Heping Lei
- Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,School of Medicine, South China University of Technology, Guangzhou, China
| | - Hong Wu
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yong Liu
- Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,School of Medicine, South China University of Technology, Guangzhou, China
| | - Qian Zhu
- Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,School of Medicine, South China University of Technology, Guangzhou, China
| | - Shanshan Zhang
- Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,School of Medicine, South China University of Technology, Guangzhou, China
| | - Yibin Liu
- Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,School of Medicine, South China University of Technology, Guangzhou, China
| | - Qiuxiong Lin
- Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,School of Medicine, South China University of Technology, Guangzhou, China
| | - Jiyan Chen
- Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,School of Medicine, South China University of Technology, Guangzhou, China
| | - Bin Zhang
- Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,School of Medicine, South China University of Technology, Guangzhou, China
| | - Guodong He
- Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,School of Medicine, South China University of Technology, Guangzhou, China
| | - Qingshan Geng
- Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,School of Medicine, South China University of Technology, Guangzhou, China
| | - Min Huang
- Laboratory of Drug Metabolism and Pharmacokinetics, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Shilong Zhong
- Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,School of Medicine, South China University of Technology, Guangzhou, China
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Increased transforming growth factor beta (TGF-β) and pSMAD3 signaling in a Murine Model for Contrast Induced Kidney Injury. Sci Rep 2018; 8:6630. [PMID: 29700311 PMCID: PMC5919895 DOI: 10.1038/s41598-018-24340-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 03/26/2018] [Indexed: 01/14/2023] Open
Abstract
We tested the hypothesis that post-contrast acute kidney injury (PC-AKI) occurs due to increase in transforming growth factor beta (Tgf-β) and pSMAD3 signaling in a murine model of PC-AKI. Mice had nephrectomy performed and twenty-eight days later, 100-μL of radio-contrast (Vispaque 320) or saline was administered via the jugular vein. Animals were sacrificed at 2, 7, and 28 days later and the serum BUN, creatinine, urine protein levels, and kidney weights were assessed. In human kidney-2 (HK-2) cells, gene and protein expression with cellular function was assessed following inhibition of TGFβR-1 plus contrast exposure. After contrast administration, the average serum creatinine is significantly elevated at all time points. The average gene expression of connective tissue growth factor (Ctgf), Tgfβ-1, matrix metalloproteinase-9 (Mmp-9), and collagen IVa (Col IVa) are significantly increased at 2 days after contrast administration (P < 0.05). Cellular proliferation is decreased and there is increased apoptosis with tubulointerstitial fibrosis. Contrast administered to HK-2 cells results in increased pSMAD3 levels and gene expression of Ctgf, Tgfβ-1, Tgfβ-2, Col IVa, Mmp-9, and caspase/7 activity with a decrease in proliferation (all, P < 0.05). TGFβR-1 inhibition decreased the expression of contrast mediated pro-fibrotic genes in HK-2 cells with no change in the proliferation and apoptosis.
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