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Cui X, Hu Y, Li D, Lu M, Zhang Z, Kan D, Li C. Association between estimated pulse wave velocity and in-hospital mortality of patients with acute kidney injury: a retrospective cohort analysis of the MIMIC-IV database. Ren Fail 2024; 46:2313172. [PMID: 38357758 PMCID: PMC10877647 DOI: 10.1080/0886022x.2024.2313172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 01/27/2024] [Indexed: 02/16/2024] Open
Abstract
BACKGROUND Estimated pulse wave velocity (ePWV) has been found to be an independent predictor of cardiovascular mortality and kidney injury, which can be estimated noninvasively. This study aimed to investigate the association between ePWV and in-hospital mortality in critically ill patients with acute kidney injury (AKI). METHODS This study included 5960 patients with AKI from the Medical Information Mart for Intensive Care IV (MIMIC-IV) database. The low and high ePWV groups were compared using a Kaplan-Meier survival curve to evaluate the differences in survival status. Cox proportional hazards models were used to explore the association between ePWV and in-hospital mortality in critically ill patients with AKI. To further examine the dose-response relationship, we used a restricted cubic spline (RCS) model. Stratification analyses were conducted to investigate the effect of ePWV on hospital mortality across various subgroups. RESULTS Survival analysis indicated that patients with high ePWV had a lower survival rate than those with low ePWV. Following adjustment, high ePWV demonstrated a statistically significant association with an increased risk of in-hospital mortality among AKI patients (HR = 1.53, 95% CI = 1.36-1.71, p < 0.001). Analysis using the RCS model confirmed a linear increase in the risk of hospital mortality as the ePWV values increased (P for nonlinearity = 0.602). CONCLUSIONS A high ePWV was significantly associated with an increased risk of in-hospital mortality among patients with AKI. Furthermore, ePWV was an independent predictor of in-hospital mortality in critically ill patients with AKI.
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Affiliation(s)
- Xinhai Cui
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yuanlong Hu
- First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Dongxiao Li
- Innovation Research Institute of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Mengkai Lu
- Innovation Research Institute of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Zhiyuan Zhang
- Innovation Research Institute of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Dongfang Kan
- Innovation Research Institute of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Chao Li
- Innovation Research Institute of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
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2
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Zhang Y, Guo S, Fu X, Zhang Q, Wang H. Emerging insights into the role of NLRP3 inflammasome and endoplasmic reticulum stress in renal diseases. Int Immunopharmacol 2024; 136:112342. [PMID: 38820956 DOI: 10.1016/j.intimp.2024.112342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Revised: 05/22/2024] [Accepted: 05/23/2024] [Indexed: 06/02/2024]
Abstract
NLRP3 inflammasome is a key component of the innate immune system, mediating the activation of caspase-1, and the maturity and secretion of the pro-inflammatory cytokine interleukin (IL)-1beta (IL-1β) and IL-18 to cope with microbial infections and cell injury. The NLRP3 inflammasome is activated by various endogenous danger signals, microorganisms and environmental stimuli, including urate, extracellular adenosine triphosphate (ATP) and cholesterol crystals. Increasing evidence indicates that the abnormal activation of NLRP3 is involved in multiple diseases including renal diseases. Hence, clarifying the mechanism of action of NLRP3 inflammasome in different diseases can help prevent and treat various diseases. Endoplasmic reticulum (ER) is an important organelle which participates in cell homeostasis maintenance and protein quality control. The unfolded protein response (UPR) and ER stress are caused by the excessive accumulation of unfolded or misfolded proteins in ER to recover ER homeostasis. Many factors can cause ER stress, including inflammation, hypoxia, environmental toxins, viral infections, glucose deficiency, changes in Ca2+ level and oxidative stress. The dysfunction of ER stress participates in multiple diseases, such as renal diseases. Many previous studies have shown that NLRP3 inflammasome and ER stress play an important role in renal diseases. However, the relevant mechanisms are not yet fully clear. Herein, we focus on the current understanding of the role and mechanism of ER stress and NLRP3 inflammasome in renal diseases, hoping to provide theoretical references for future related researches.
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Affiliation(s)
- Yanting Zhang
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, Henan 475004, China; School of Clinical Medicine, Henan University, Kaifeng, Henan 475004, China
| | - Shiyun Guo
- School of Clinical Medicine, Henan University, Kaifeng, Henan 475004, China
| | - Xiaodi Fu
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, Henan 475004, China
| | - Qi Zhang
- School of Clinical Medicine, Henan University, Kaifeng, Henan 475004, China
| | - Honggang Wang
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, Henan 475004, China.
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3
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Douvris A, Viñas J, Gutsol A, Zimpelmann J, Burger D, Burns K. miR-486-5p protects against rat ischemic kidney injury and prevents the transition to chronic kidney disease and vascular dysfunction. Clin Sci (Lond) 2024; 138:599-614. [PMID: 38739452 PMCID: PMC11130553 DOI: 10.1042/cs20231752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 03/12/2024] [Accepted: 04/29/2024] [Indexed: 05/16/2024]
Abstract
AIM Acute kidney injury (AKI) increases the risk for progressive chronic kidney disease (CKD). MicroRNA (miR)-486-5p protects against kidney ischemia-reperfusion (IR) injury in mice, although its long-term effects on the vasculature and development of CKD are unknown. We studied whether miR-486-5p would prevent the AKI to CKD transition in rat, and affect vascular function. METHODS Adult male rats were subjected to bilateral kidney IR followed by i.v. injection of liposomal-packaged miR-486-5p (0.5 mg/kg). Kidney function and histologic injury were assessed after 24 h and 10 weeks. Kidney endothelial protein levels were measured by immunoblot and immunofluorescence, and mesenteric artery reactivity was determined by wire myography. RESULTS In rats with IR, miR-486-5p blocked kidney endothelial cell increases in intercellular adhesion molecule-1 (ICAM-1), reduced neutrophil infiltration and histologic injury, and normalized plasma creatinine (P<0.001). However, miR-486-5p attenuated IR-induced kidney endothelial nitric oxide synthase (eNOS) expression (P<0.05). At 10 weeks, kidneys from rats with IR alone had decreased peritubular capillary density and increased interstitial collagen deposition (P<0.0001), and mesenteric arteries showed impaired endothelium-dependent vasorelaxation (P<0.001). These changes were inhibited by miR-486-5p. Delayed miR-486-5p administration (96 h, 3 weeks after IR) had no impact on kidney fibrosis, capillary density, or endothelial function. CONCLUSION In rats, administration of miR-486-5p early after kidney IR prevents injury, and protects against CKD development and systemic endothelial dysfunction. These protective effects are associated with inhibition of endothelial ICAM-1 and occur despite reduction in eNOS. miR-486-5p holds promise for the prevention of ischemic AKI and its complications.
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Affiliation(s)
- Adrianna Douvris
- Division of Nephrology, Department of Medicine and Kidney Research Centre, Ottawa Hospital Research Institute, University of Ottawa and the Ottawa Hospital, Ottawa, Canada
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, Canada
| | - Jose L. Viñas
- Division of Nephrology, Department of Medicine and Kidney Research Centre, Ottawa Hospital Research Institute, University of Ottawa and the Ottawa Hospital, Ottawa, Canada
| | - Alexey Gutsol
- Division of Nephrology, Department of Medicine and Kidney Research Centre, Ottawa Hospital Research Institute, University of Ottawa and the Ottawa Hospital, Ottawa, Canada
| | - Joseph Zimpelmann
- Division of Nephrology, Department of Medicine and Kidney Research Centre, Ottawa Hospital Research Institute, University of Ottawa and the Ottawa Hospital, Ottawa, Canada
| | - Dylan Burger
- Division of Nephrology, Department of Medicine and Kidney Research Centre, Ottawa Hospital Research Institute, University of Ottawa and the Ottawa Hospital, Ottawa, Canada
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, Canada
| | - Kevin D. Burns
- Division of Nephrology, Department of Medicine and Kidney Research Centre, Ottawa Hospital Research Institute, University of Ottawa and the Ottawa Hospital, Ottawa, Canada
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, Canada
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4
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Urie RR, Morris A, Farris D, Hughes E, Xiao C, Chen J, Lombard E, Feng J, Li JZ, Goldstein DR, Shea LD. Biomarkers from subcutaneous engineered tissues predict acute rejection of organ allografts. SCIENCE ADVANCES 2024; 10:eadk6178. [PMID: 38748794 PMCID: PMC11095459 DOI: 10.1126/sciadv.adk6178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 04/10/2024] [Indexed: 05/19/2024]
Abstract
Invasive graft biopsies assess the efficacy of immunosuppression through lagging indicators of transplant rejection. We report on a microporous scaffold implant as a minimally invasive immunological niche to assay rejection before graft injury. Adoptive transfer of T cells into Rag2-/- mice with mismatched allografts induced acute cellular allograft rejection (ACAR), with subsequent validation in wild-type animals. Following murine heart or skin transplantation, scaffold implants accumulate predominantly innate immune cells. The scaffold enables frequent biopsy, and gene expression analyses identified biomarkers of ACAR before clinical signs of graft injury. This gene signature distinguishes ACAR and immunodeficient respiratory infection before injury onset, indicating the specificity of the biomarkers to differentiate ACAR from other inflammatory insult. Overall, this implantable scaffold enables remote evaluation of the early risk of rejection, which could potentially be used to reduce the frequency of routine graft biopsy, reduce toxicities by personalizing immunosuppression, and prolong transplant life.
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Affiliation(s)
- Russell R. Urie
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Aaron Morris
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Diana Farris
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA
| | - Elizabeth Hughes
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Chengchuan Xiao
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Judy Chen
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA
- Program in Immunology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Elizabeth Lombard
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Jiane Feng
- Animal Phenotyping Core, University of Michigan, Ann Arbor, MI 48109, USA
| | - Jun Z. Li
- Department of Human Genetics, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI 48109, USA
| | - Daniel R. Goldstein
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA
- Program in Immunology, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Lonnie D. Shea
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
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Erfurt S, Lauxmann M, Asmus K, Oess S, Patschan D, Hoffmeister M. Serum Nostrin-A risk factor of death, kidney replacement therapy and acute kidney disease in acute kidney injury. PLoS One 2024; 19:e0299131. [PMID: 38603667 PMCID: PMC11008819 DOI: 10.1371/journal.pone.0299131] [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: 02/05/2024] [Accepted: 03/26/2024] [Indexed: 04/13/2024] Open
Abstract
BACKGROUND The prediction of Acute Kidney Injury (AKI)-related outcomes remains challenging. Persistent kidney excretory dysfunction for longer than 7 days has been defined as Acute Kidney Disease (AKD). In this study, we prospectively quantified serum Nostrin, an essential regulator of endothelial NO metabolism, in hospitalized patients with AKI. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS In-hospital subjects with AKI of various etiology were identified through the in-hospital AKI alert system of the Brandenburg University Hospital. Serum Nostrin, and serum NGAL and KIM-1 were measured within a maximum of 48 hours from the timepoint of initial diagnosis of AKI. The following endpoints were defined: in-hospital death, need of kidney replacement therapy (KRT), recovery of kidney function (ROKF) until discharge. RESULTS AKI patients had significantly higher serum Nostrin levels compared to Controls. The level of serum Nostrin increased significantly with the severity of AKI. Within the group of AKI patients (n = 150) the in-hospital mortality was 16.7%, KRT was performed in 39.3%, no ROKF occurred in 28%. Patients who required KRT had significantly higher levels of serum Nostrin compared to patients who did not require KRT. Significantly higher levels of serum Nostrin were also detected in AKI patients without ROKF compared to patients with ROKF. In addition, low serum Nostrin levels at the timepoint of AKI diagnosis were predictive of in-hospital survival. For comparison, the serum concentrations of NGAL and KIM-1 were determined in parallel to the Nostrin concentrations and the results confirm the prognostic properties of serum Nostrin in AKI. CONCLUSIONS The current study suggests serum Nostrin as novel biomarker of AKI-associated mortality, KRT and Acute Kidney Disease.
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Affiliation(s)
- Stefan Erfurt
- Brandenburg Medical School Theodor Fontane, Institute of Biochemistry, Brandenburg an der Havel, Germany
- Department of Internal Medicine I—Cardiology, Nephrology and Internal Intensive Medicine, Brandenburg University Hospital, Brandenburg Medical School Theodor Fontane, Brandenburg an der Havel, Germany
| | - Martin Lauxmann
- Brandenburg Medical School Theodor Fontane, Institute of Biochemistry, Brandenburg an der Havel, Germany
- Department of Internal Medicine I—Cardiology, Nephrology and Internal Intensive Medicine, Brandenburg University Hospital, Brandenburg Medical School Theodor Fontane, Brandenburg an der Havel, Germany
| | - Katharina Asmus
- Department of Internal Medicine I—Cardiology, Nephrology and Internal Intensive Medicine, Brandenburg University Hospital, Brandenburg Medical School Theodor Fontane, Brandenburg an der Havel, Germany
| | - Stefanie Oess
- Brandenburg Medical School Theodor Fontane, Institute of Biochemistry, Brandenburg an der Havel, Germany
- Faculty of Health Sciences (FGW), Joint Faculty of the University of Potsdam, The Brandenburg Medical School Theodor Fontane and the Brandenburg Technical University, Cottbus-Senftenberg, Germany
| | - Daniel Patschan
- Department of Internal Medicine I—Cardiology, Nephrology and Internal Intensive Medicine, Brandenburg University Hospital, Brandenburg Medical School Theodor Fontane, Brandenburg an der Havel, Germany
- Faculty of Health Sciences (FGW), Joint Faculty of the University of Potsdam, The Brandenburg Medical School Theodor Fontane and the Brandenburg Technical University, Cottbus-Senftenberg, Germany
| | - Meike Hoffmeister
- Brandenburg Medical School Theodor Fontane, Institute of Biochemistry, Brandenburg an der Havel, Germany
- Faculty of Health Sciences (FGW), Joint Faculty of the University of Potsdam, The Brandenburg Medical School Theodor Fontane and the Brandenburg Technical University, Cottbus-Senftenberg, Germany
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6
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Khbouz B, Musumeci L, Grahammer F, Jouret F. The Dual-specificity Phosphatase 3 (DUSP3): A Potential Target Against Renal Ischemia/Reperfusion Injury. Transplantation 2024:00007890-990000000-00722. [PMID: 38587920 DOI: 10.1097/tp.0000000000005009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
Renal ischemia/reperfusion (I/R) injury is a common clinical challenge faced by clinicians in kidney transplantation. I/R is the leading cause of acute kidney injury, and it occurs when blood flow to the kidney is interrupted and subsequently restored. I/R impairs renal function in both short and long terms. Renal ischemic preconditioning refers to all maneuvers intended to prevent or attenuate ischemic damage. In this context, the present review focuses on the dual-specificity phosphatase 3 (DUSP3), also known as vaccinia H1-related phosphatase, an uncommon regulator of mitogen-activated protein kinase (MAPK) phosphorylation. DUSP3 has different biological functions: (1) it acts as a tumor modulator and (2) it is involved in the regulation of immune response, thrombosis, hemostasis, angiogenesis, and genomic stability. These functions occur either through MAPK-dependent or MAPK-independent mechanisms. DUSP3 genetic deletion dampens kidney damage and inflammation caused by I/R in mice, suggesting DUSP3 as a potential target for preventing renal I/R injury. Here, we discuss the putative role of DUSP3 in ischemic preconditioning and the potential mechanisms of such an attenuated inflammatory response via improved kidney perfusion and adequate innate immune response.
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Affiliation(s)
- Badr Khbouz
- Groupe Interdisciplinaire de Génoprotéomique Appliquée (GIGA), Cardiovascular Sciences, University of Liège (ULiège), Liège, Belgium
- Hamburg Center for Kidney Health (HCKH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Department of Medicine (Nephrology, Rheumatology, Endocrinology), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Lucia Musumeci
- Groupe Interdisciplinaire de Génoprotéomique Appliquée (GIGA), Cardiovascular Sciences, University of Liège (ULiège), Liège, Belgium
- Department of Cardiovascular Surgery, CHU of Liège, Liège, Belgium
| | - Florian Grahammer
- Hamburg Center for Kidney Health (HCKH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Department of Medicine (Nephrology, Rheumatology, Endocrinology), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - François Jouret
- Groupe Interdisciplinaire de Génoprotéomique Appliquée (GIGA), Cardiovascular Sciences, University of Liège (ULiège), Liège, Belgium
- Division of Nephrology, CHU of Liège, University of Liège (CHU ULiège), Liège, Belgium
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7
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Elgendy MM, Cortez J, Saker F, Acun C, Matar RB, Mohamed MA, Aly H. Acute kidney injury in infants with hypoxic-ischemic encephalopathy. Pediatr Nephrol 2024; 39:1271-1277. [PMID: 37947899 DOI: 10.1007/s00467-023-06214-3] [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: 08/09/2023] [Revised: 10/24/2023] [Accepted: 10/24/2023] [Indexed: 11/12/2023]
Abstract
BACKGROUND This study aimed to investigate the prevalence of acute kidney injury (AKI) in infants with varying degrees of hypoxic-ischemic encephalopathy (HIE) and its associated outcomes, including mortality and length of stay (LOS). METHODS The study used the National Inpatient Sample (NIS) dataset from 2010 to 2018. Regression analysis was used to control confounding variables. RESULTS Of 31,220,784 infants included in the study, 30,130 (0.1%) had HIE. The prevalence of AKI was significantly higher in infants with HIE (9.0%) compared to those without (0.04%), with an adjusted odds ratio (aOR) of 77.6 (CI:70.1-85.7, p < 0.001), with the highest prevalence of AKI in infants with severe HIE (19.7%), aOR:130 (CI: 107-159), p < 0.001). Infants with AKI had a higher mortality rate compared to those without AKI in those diagnosed with any degree of HIE (28.9% vs. 8.8%), aOR 3.5 (CI: 3.2-3.9, p < 0.001), particularly among those with severe HIE, aOR:1.4 (1.2-1.6, p < 0.001). CONCLUSIONS HIE is associated with an increased prevalence of AKI. Infants with severe HIE had the highest prevalence of AKI and associated mortality. The study highlights the need for close monitoring and early detection of AKI in infants with HIE, particularly those with severe HIE, to ameliorate the associated adverse outcomes.
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Affiliation(s)
- Marwa M Elgendy
- Department of Pediatrics & Neonatology, University of Florida College of Medicine-Jacksonville, Jacksonville, FL, USA.
| | - Josef Cortez
- Division of Neonatology, University of Florida College of Medicine - Jacksonville, Jacksonville, FL, USA
| | - Firas Saker
- Department of Neonatology, Cleveland Clinic Children's, Cleveland, OH, USA
| | - Ceyda Acun
- Department of Neonatology, Cleveland Clinic Children's, Cleveland, OH, USA
| | - Raed Bou Matar
- Center for Pediatric Nephrology, Cleveland Clinic Children's, Cleveland, OH, USA
| | - Mohamed A Mohamed
- Department of Neonatology, Cleveland Clinic Children's, Cleveland, OH, USA
| | - Hany Aly
- Department of Neonatology, Cleveland Clinic Children's, Cleveland, OH, USA
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Maftoon-Azad MJ, Nazari S, Keshavarz S, Owji SM, Moosavi SMS. Transmission of high arterial pressure into renal microvessels during venous-clamping augments ischaemia/reperfusion-induced acute kidney injury in anaesthetized rats. Nephrology (Carlton) 2024; 29:188-200. [PMID: 38173056 DOI: 10.1111/nep.14266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 11/22/2023] [Accepted: 12/16/2023] [Indexed: 01/05/2024]
Abstract
AIM In two recent studies, we observed that a 30-min renal vein clamping caused formation of interstitial haemorrhagic congestion in ischaemic and ischaemic/reperfused kidney along with the development of severer acute kidney injury (AKI) than renal artery or pedicle clamping. It was suggested that the transmission of high arterial pressure into renal microvessels during vein occlusion probably causes the occurrence of interstitial haemorrhagic congestion that augments AKI. The present investigation aimed to evaluate this suggestion by reducing renal perfusion pressure (RPP) during renal venous occlusion. METHODS Anaesthetized male Sprague-Dawley rats were divided into three groups (n = 8), which underwent a 2-h reperfusion period following 30-min bilateral renal venous clamping along with reduced RPP (VIR-rRPP group) or without reduced RPP (VIR group) and an equivalent period after sham-operation (Sham group). RESULTS The VIR-rRPP group compared with VIR group had lower levels of kidney malondialdehyde and tissue damages as epithelial injuries of proximal tubule and thick ascending limb, vascular congestion, intratubular cast and oedema, along with the less reductions in renal blood flow, creatinine clearance, Na+ -reabsorption, K+ and urea excretion, urine osmolality and free-water reabsorption. Importantly, the formation of intensive interstitial haemorrhagic congestion in the VIR group was not observed in the VIR-rRPP group. CONCLUSION These results indicate that the transmission of high arterial pressure into renal microvessels during venous occlusion leads to rupturing of their walls and the formation of interstitial haemorrhagic congestion, which has an augmenting impact on ischaemia/reperfusion-induced renal structural damages and haemodynamic, excretory and urine-concentrating dysfunctions.
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Affiliation(s)
| | - Somayeh Nazari
- Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Somayeh Keshavarz
- Department of Physiology, The Medical School, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Seyed Mohammad Owji
- Department of Pathology, The Medical School, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Seyed Mostafa Shid Moosavi
- Department of Physiology, The Medical School, Shiraz University of Medical Sciences, Shiraz, Iran
- Shiraz Nephro-Urology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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Ba X, Ye T, Shang H, Tong Y, Huang Q, He Y, Wu J, Deng W, Zhong Z, Yang X, Wang K, Xie Y, Zhang Y, Guo X, Tang K. Recent Advances in Nanomaterials for the Treatment of Acute Kidney Injury. ACS APPLIED MATERIALS & INTERFACES 2024; 16:12117-12148. [PMID: 38421602 DOI: 10.1021/acsami.3c19308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Acute kidney injury (AKI) is a serious clinical syndrome with high morbidity, elevated mortality, and poor prognosis, commonly considered a "sword of Damocles" for hospitalized patients, especially those in intensive care units. Oxidative stress, inflammation, and apoptosis, caused by the excessive production of reactive oxygen species (ROS), play a key role in AKI progression. Hence, the investigation of effective and safe antioxidants and inflammatory regulators to scavenge overexpressed ROS and regulate excessive inflammation has become a promising therapeutic option. However, the unique physiological structure and complex pathological alterations in the kidneys render traditional therapies ineffective, impeding the residence and efficacy of most antioxidant and anti-inflammatory small molecule drugs within the renal milieu. Recently, nanotherapeutic interventions have emerged as a promising and prospective strategy for AKI, overcoming traditional treatment dilemmas through alterations in size, shape, charge, and surface modifications. This Review succinctly summarizes the latest advancements in nanotherapeutic approaches for AKI, encompassing nanozymes, ROS scavenger nanomaterials, MSC-EVs, and nanomaterials loaded with antioxidants and inflammatory regulator. Following this, strategies aimed at enhancing biocompatibility and kidney targeting are introduced. Furthermore, a brief discussion on the current challenges and future prospects in this research field is presented, providing a comprehensive overview of the evolving landscape of nanotherapeutic interventions for AKI.
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Affiliation(s)
- Xiaozhuo Ba
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Tao Ye
- Department of Geriatric Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Haojie Shang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yonghua Tong
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Qiu Huang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yu He
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jian Wu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Wen Deng
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Zichen Zhong
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xiaoqi Yang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Kangyang Wang
- Department of Urology, Wenchang People's Hospital, Wenchang 571300, Hainan Province, China
| | - Yabin Xie
- Department of Urology, Wenchang People's Hospital, Wenchang 571300, Hainan Province, China
| | - Yanlong Zhang
- GuiZhou University Medical College, Guiyang 550025, Guizhou Province, China
| | - Xiaolin Guo
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Kun Tang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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10
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Kadar DD, Warli SM, Ritarwan K, Ichwan M, Ismi J, Fikri E, Harahap J, Alferraly I. Efficacy of metamizole to prevent kidney injury after renal-ischaemic reperfusion injury in Wistar rats. Ann Med Surg (Lond) 2024; 86:1408-1415. [PMID: 38463114 PMCID: PMC10923394 DOI: 10.1097/ms9.0000000000001694] [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: 09/28/2023] [Accepted: 12/27/2023] [Indexed: 03/12/2024] Open
Abstract
Background Renal ischaemia-reperfusion injury (RIRI) is a common kidney procedure complication due to temporary blood flow interruption, leading to kidney injuries. This study aimed to analyze the effect of metamizole on the levels of interleukin-18 (IL-18), neutrophil-gelatinase-associated lipocalin (NGAL), myeloperoxidase (MPO), and histopathological changes in rats with RIRI. Materials and methods Animal pre-clinical design study was used. Thirty-two male Wistar rats (Rattus norvegicus) were divided into four groups: negative control, positive control, M100, and M200. Blood samples were collected by intracardiac puncture, followed by bilateral nephrectomy and analyzed histopathologically. Results Significant difference in IL-18 levels between positive control vs negative control (114.1 + 12.07 vs. 94.0 + 11.4; P = 0.019) and positive control vs M100 (114.1 + 12.07 vs. 86.9 + 8.34; P = 0.007). There was no difference in NGAL. M100 group had the lowest serum MPO levels (14.78+2.01), there was a significant difference in MPO levels in all pairwise analyses. There was a difference in cumulative EGTI scores among the study groups [positive 10.5 (8-11) vs. negative 9 (7-10) vs. M100 9 (7-10) vs. M200 9 (7-11); P = 0.021]. Conclusion Metamizole 100 mg/kgBW can reduce IL-18 and MPO levels in RIRI, giving more optimal results without affecting NGAL levels. Metamizole administration can reduce cumulative EGTI scores in RIRI, both at doses of 100 mg/kgBW and 200 mg/kgBW. This study shows that Metamizole can be used to prevent kidney injury caused by RIRI. IL-18 and MPO can be biomarkers in predicting kidney injury in RIRI.
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Affiliation(s)
| | - Syah Mirsya Warli
- Division of Urology
- Department of Urology, Universitas Sumatera Utara Hospital, Universitas Sumatera Utara
| | - Kiking Ritarwan
- Department of Neurology, Faculty of Medicine, Universitas Sumatera Utara—Haji Adam Malik General Hospital
| | | | - Jufriady Ismi
- Department of Surgery, Faculty of Medicine, Universitas Syiah Kuala—Zainoel Abidin General Hospital, Banda Aceh, Indonesia
| | - Erjan Fikri
- Division of Pediatric Surgery, Department of Surgery
| | | | - Ibnu Alferraly
- Anatomical Pathology, Faculty of Medicine, Universitas Sumatera Utara, Medan
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11
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Zhang H, Zheng C, Xu Y, Hu X. Comprehensive molecular and cellular characterization of endoplasmic reticulum stress-related key genes in renal ischemia/reperfusion injury. Front Immunol 2024; 15:1340997. [PMID: 38495888 PMCID: PMC10940334 DOI: 10.3389/fimmu.2024.1340997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Accepted: 02/19/2024] [Indexed: 03/19/2024] Open
Abstract
Background Renal ischemia-reperfusion injury (RIRI) is an inevitable complication in the process of kidney transplantation and lacks specific therapy. The study aims to determine the underlying mechanisms of RIRI to uncover a promising target for efficient renoprotection. Method Four bulk RNA-seq datasets including 495 renal samples of pre- and post-reperfusion were collected from the GEO database. The machine learning algorithms were utilized to ascertain pivotal endoplasmic reticulum stress genes. Then, we incorporated correlation analysis and determined the interaction pathways of these key genes. Considering the heterogeneous nature of bulk-RNA analysis, the single-cell RNA-seq analysis was performed to investigate the mechanisms of key genes at the single-cell level. Besides, 4-PBA was applied to inhibit endoplasmic reticulum stress and hence validate the pathological role of these key genes in RIRI. Finally, three clinical datasets with transcriptomic profiles were used to assess the prognostic role of these key genes in renal allograft outcomes after RIRI. Results In the bulk-RNA analysis, endoplasmic reticulum stress was identified as the top enriched pathway and three endoplasmic reticulum stress-related genes (PPP1R15A, JUN, and ATF3) were ranked as top performers in both LASSO and Boruta analyses. The three genes were found to significantly interact with kidney injury-related pathways, including apoptosis, inflammatory response, oxidative stress, and pyroptosis. For oxidative stress, these genes were more strongly related to oxidative markers compared with antioxidant markers. In single-cell transcriptome, the three genes were primarily upregulated in endothelium, distal convoluted tubule cells, and collecting duct principal cells among 12 cell types of renal tissues in RIRI. Furthermore, distal convoluted tubule cells and collecting duct principal cells exhibited pro-inflammatory status and the highest pyroptosis levels, suggesting their potential as main effectors of three key genes for mediating RIRI-associated injuries. Importantly, inhibition of these key genes using 4-phenyl butyric acid alleviated functional and histological damage in a mouse RIRI model. Finally, the three genes demonstrated highly prognostic value in predicting graft survival outcomes. Conclusion The study identified three key endoplasmic reticulum stress-related genes and demonstrated their prognostic value for graft survival, providing references for individualized clinical prevention and treatment of postoperative complications after renal transplantation.
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Affiliation(s)
- Hao Zhang
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- Institute of Urology, Capital Medical University, Beijing, China
| | - Chaoyue Zheng
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- Institute of Urology, Capital Medical University, Beijing, China
| | - Yue Xu
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- Institute of Urology, Capital Medical University, Beijing, China
| | - Xiaopeng Hu
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- Institute of Urology, Capital Medical University, Beijing, China
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12
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Starr MC, Barreto E, Charlton J, Vega M, Brophy PD, Ray Bignall ON, Sutherland SM, Menon S, Devarajan P, Akcan Arikan A, Basu R, Goldstein S, Soranno DE. Advances in pediatric acute kidney injury pathobiology: a report from the 26th Acute Disease Quality Initiative (ADQI) conference. Pediatr Nephrol 2024; 39:941-953. [PMID: 37792076 PMCID: PMC10817846 DOI: 10.1007/s00467-023-06154-y] [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: 06/25/2023] [Revised: 08/08/2023] [Accepted: 08/29/2023] [Indexed: 10/05/2023]
Abstract
BACKGROUND In the past decade, there have been substantial advances in our understanding of the pathobiology of pediatric acute kidney injury (AKI). In particular, animal models and studies focused on the relationship between kidney development, nephron number, and kidney health have identified a number of heterogeneous pathophysiologies underlying AKI. Despite this progress, gaps remain in our understanding of the pathobiology of pediatric AKI. METHODS During the 26th Acute Disease Quality Initiative (ADQI) Consensus conference, a multidisciplinary group of experts discussed the evidence and used a modified Delphi process to achieve consensus on recommendations for opportunities to advance translational research in pediatric AKI. The current state of research understanding as well as gaps and opportunities for advancement in research was discussed, and recommendations were summarized. RESULTS Consensus was reached that to improve translational pediatric AKI advancements, diverse teams spanning pre-clinical to epidemiological scientists must work in concert together and that results must be shared with the community we serve with patient involvement. Public and private research support and meaningful partnerships with adult research efforts are required. Particular focus is warranted to investigate the pediatric nuances of AKI, including the effect of development as a biological variable on AKI incidence, severity, and outcomes. CONCLUSIONS Although AKI is common and associated with significant morbidity, the biologic basis of the disease spectrum throughout varying nephron developmental stages remains poorly understood. An incomplete understanding of factors contributing to kidney health, the diverse pathobiologies underlying AKI in children, and the historically siloed approach to research limit advances in the field. The recommendations outlined herein identify gaps and outline a strategic approach to advance the field of pediatric AKI via multidisciplinary translational research.
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Affiliation(s)
- Michelle C Starr
- Department of Pediatrics, Division of Nephrology, Indiana University School of Medicine, Riley Hospital for Children, 1044 W. Walnut Street, Indianapolis, IN, 46202, USA
- Pediatric and Adolescent Comparative Effectiveness Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Erin Barreto
- Department of Pharmacy, Mayo Clinic, Rochester, MN, USA
| | - Jennifer Charlton
- Department of Pediatrics, Division of Nephrology, University of Virginia, Charlottesville, VA, USA
| | - Molly Vega
- Renal and Apheresis Services, Texas Children's Hospital, Houston, TX, USA
| | - Patrick D Brophy
- Department of Pediatrics, Golisano Children's Hospital, University of Rochester, Rochester, NY, USA
| | - O N Ray Bignall
- Department of Pediatrics, Division of Nephrology and Hypertension, Nationwide Children's Hospital and The Ohio State University College of Medicine, Columbus, OH, USA
| | - Scott M Sutherland
- Department of Pediatrics, Division of Nephrology, Stanford University School of Medicine, Stanford, CA, USA
| | - Shina Menon
- Division of Pediatric Nephrology, Seattle Children's Hospital and University of Washington, Seattle, WA, USA
| | - Prasad Devarajan
- Department of Pediatrics, Division of Nephrology and Hypertension, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, OH, USA
| | - Ayse Akcan Arikan
- Department of Pediatrics, Divisions of Critical Care and Nephrology, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, USA
| | - Rajit Basu
- Department of Pediatrics, Division of Critical Care, Northwestern University, Chicago, IL, USA
| | - Stuart Goldstein
- Department of Pediatrics, Division of Nephrology and Hypertension, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, OH, USA
| | - Danielle E Soranno
- Department of Pediatrics, Division of Nephrology, Indiana University School of Medicine, Riley Hospital for Children, 1044 W. Walnut Street, Indianapolis, IN, 46202, USA.
- Department of Bioengineering, Purdue University, West Lafayette, IN, USA.
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13
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Sabet Sarvestani F, Afshari A, Azarpira N. The role of non-protein-coding RNAs in ischemic acute kidney injury. Front Immunol 2024; 15:1230742. [PMID: 38390339 PMCID: PMC10881863 DOI: 10.3389/fimmu.2024.1230742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 01/26/2024] [Indexed: 02/24/2024] Open
Abstract
Acute kidney injury (AKI) is a condition characterized by a rapid decline in kidney function within a span of 48 hours. It is influenced by various factors including inflammation, oxidative stress, excessive calcium levels within cells, activation of the renin-angiotensin system, and dysfunction in microcirculation. Ischemia-reperfusion injury (IRI) is recognized as a major cause of AKI; however, the precise mechanisms behind this process are not yet fully understood and effective treatments are still needed. To enhance the accuracy of diagnosing AKI during its early stages, the utilization of innovative markers is crucial. Numerous studies suggest that certain noncoding RNAs (ncRNAs), such as long noncoding RNAs (lncRNAs), microRNAs (miRNAs), and circular RNAs (circRNAs), play a central role in regulating gene expression and protein synthesis. These ncRNAs are closely associated with the development and recovery of AKI and have been detected in both kidney tissue and bodily fluids. Furthermore, specific ncRNAs may serve as diagnostic markers and potential targets for therapeutic interventions in AKI. This review aims to summarize the functional roles and changes observed in noncoding RNAs during ischemic AKI, as well as explore their therapeutic potential.
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Affiliation(s)
| | - Afsoon Afshari
- Shiraz Nephro-Urology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Negar Azarpira
- Shiraz Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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14
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Wang J, Yu Y, Zhang H, Li L, Wang J, Su S, Zhang Y, Song L, Zhou K. Gypenoside XVII attenuates renal ischemia-reperfusion injury by inhibiting endoplasmic reticulum stress and NLRP3 inflammasome-triggered pyroptosis. Eur J Pharmacol 2024; 962:176187. [PMID: 37984729 DOI: 10.1016/j.ejphar.2023.176187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 10/24/2023] [Accepted: 11/06/2023] [Indexed: 11/22/2023]
Abstract
BACKGROUND Renal ischemia-reperfusion (I/R) is one of the main causes of acute kidney injury (AKI), for which there is currently no effective treatment. Recently, the interaction between endoplasmic reticulum (ER) stress and pyroptosis during AKI has been investigated. AIM The purpose of this study was to investigate the protective effects of Gypenoside XVII (GP-17) against I/R-induced renal injury. METHODS In this study, mice were divided into 6 groups, sham group, I/R group, GP-17 low-, medium-, high-dose group, and positive control 4-PBA group. The renal I/R was performed in mice by clamping the bilateral renal pedicles for 40 min, and then reperfusing for 24 h. Blood and kidney samples were collected for analysis. RESULTS The results showed that GP-17 improved renal function and alleviated renal histopathological abnormalities caused by I/R. In addition, GP-17 pretreatment significantly decreased the expression or phosphorylation of ER stress response proteins including BIP, p-PERK, and CHOP. Besides, GP-17 inhibited the expression of pyroptosis proteins including caspase-1, GSDMD, and apoptotic protein BAX. The inflammatory factor IL-1β in these GP-17 pretreatment groups was also significantly reduced. CONCLUSION GP-17 blocked NLRP3 inflammasome activation by inhibiting ERS, thereby inhibiting renal tubular cell pyroptosis and apoptosis, and prevented renal I/R injury.
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Affiliation(s)
- Jiarui Wang
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Yingli Yu
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China; Tianjin Key Laboratory of Chinese Medicine Pharmacology, Tianjin, 301617, China; State Key Laboratory of Component-based Chinese Medicine, Tianjin, 301617, China.
| | - Haorui Zhang
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Li Li
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Jing Wang
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Shijia Su
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Yue Zhang
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China; Tianjin Key Laboratory of Chinese Medicine Pharmacology, Tianjin, 301617, China; State Key Laboratory of Component-based Chinese Medicine, Tianjin, 301617, China
| | - Lei Song
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China; Tianjin Key Laboratory of Chinese Medicine Pharmacology, Tianjin, 301617, China; State Key Laboratory of Component-based Chinese Medicine, Tianjin, 301617, China
| | - Kun Zhou
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China; Tianjin Key Laboratory of Chinese Medicine Pharmacology, Tianjin, 301617, China; State Key Laboratory of Component-based Chinese Medicine, Tianjin, 301617, China.
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15
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Shaughnessey EM, Kann SH, Charest JL, Vedula EM. Human Kidney Proximal Tubule-Microvascular Model Facilitates High-Throughput Analyses of Structural and Functional Effects of Ischemia-Reperfusion Injury. Adv Biol (Weinh) 2024; 8:e2300127. [PMID: 37786311 DOI: 10.1002/adbi.202300127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 08/27/2023] [Indexed: 10/04/2023]
Abstract
Kidney ischemia reperfusion injury (IRI) poses a major global healthcare burden, but effective treatments remain elusive. IRI involves a complex interplay of tissue-level structural and functional changes caused by interruptions in blood and filtrate flow and reduced oxygenation. Existing in vitro models poorly replicate the in vivo injury environment and lack means of monitoring tissue function during the injury process. Here, a high-throughput human primary kidney proximal tubule (PT)-microvascular model is described, which facilitates in-depth structural and rapid functional characterization of IRI-induced changes in the tissue barrier. The PREDICT96 (P96) microfluidic platform's user-controlled fluid flow can mimic the conditions of IR to induce pronounced changes in cell structure that resemble clinical and in vivo phenotypes. High-throughput trans-epi/endo-thelial electrical resistance (TEER) sensing is applied to non-invasively track functional changes in the PT-microvascular barrier during the two-stage injury process and over repeated episodes of injury. Notably, ischemia causes an initial increase in tissue TEER followed by a sudden increase in permeability upon reperfusion, and this biphasic response occurs only with the loss of both fluid flow and oxygenation. This study demonstrates the potential of the P96 kidney IRI model to enhance understanding of IRI and fuel therapeutic development.
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Affiliation(s)
- Erin M Shaughnessey
- Draper Scholar, The Charles Stark Draper Laboratory Inc., 555 Technology Square, Cambridge, MA, 02139, USA
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA, 02155, USA
| | - Samuel H Kann
- Draper Scholar, The Charles Stark Draper Laboratory Inc., 555 Technology Square, Cambridge, MA, 02139, USA
- Department of Mechanical Engineering, Boston University, 110 Cummington Mall, Boston, MA, 02215, USA
| | - Joseph L Charest
- The Charles Stark Draper Laboratory Inc., 555 Technology Square, Cambridge, MA, 02139, USA
| | - Else M Vedula
- The Charles Stark Draper Laboratory Inc., 555 Technology Square, Cambridge, MA, 02139, USA
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16
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She S, Shen Y, Luo K, Zhang X, Luo C. Prediction of Acute Kidney Injury in Intracerebral Hemorrhage Patients Using Machine Learning. Neuropsychiatr Dis Treat 2023; 19:2765-2773. [PMID: 38106359 PMCID: PMC10723589 DOI: 10.2147/ndt.s439549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Accepted: 11/30/2023] [Indexed: 12/19/2023] Open
Abstract
Background Acute kidney injury (AKI) is prevalent in patients with intracerebral hemorrhage (ICH) and is associated with mortality. This study aimed to verify the predictive accuracy of different machine learning algorithms for AKI in patients with ICH using a large dataset. Methods A total of 1366 ICH patients received treatments between 2001 and 2012 from the Medical Information Mart for Intensive Care-III (MIMIC-III) database were identified based on the ICD-9 code: 431. The main outcome of AKI during hospitalizations was confirmed based on the KDIGO criteria. Overall, ICH patients were randomly divided into the training cohort and validation cohort with the ratio of 7:3. Six machine learning algorithms including extreme gradient boosting, logistic, light gradient boosting machine, random forest, adaptive boosting, support vector machine were trained in the training cohort with the 5-fold cross-validation method to predict the AKI. The predictive accuracy of those algorithms was compared by area under the receiver operating characteristics curve (AUC). Results A total of 1213 ICH patients were included with the incidence of AKI being 29.3%. The incidence of AKI was 29.3% among the 1213 patients with ICH. The AKI group had higher 30-day mortality (p<0.001), longer ICU stay (p<0.001), and longer hospital stay (p<0.001). Among the six machine learning algorithms, the random forest performed the best in predicting AKI in both the training cohort (AUC=1.000) and the validation cohort (AUC=0.698). The top five features in the random forest algorithm-based model were platelets, serum creatinine, vancomycin, hemoglobin, and hematocrit. Conclusion The random forest algorithm-based predictive model we developed incorporating important features, including platelet count, serum creatinine level, vancomycin level, hemoglobin level, and hematocrit level, performed the best in predicting AKI among patients with ICH.
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Affiliation(s)
- Suhua She
- The Second Department of Neurosurgery, Hunan University of Medical General Hospital, Huaihua, Hunan, People’s Republic of China
| | - Yulong Shen
- The Second Department of Neurosurgery, Hunan University of Medical General Hospital, Huaihua, Hunan, People’s Republic of China
| | - Kun Luo
- The Second Department of Neurosurgery, Hunan University of Medical General Hospital, Huaihua, Hunan, People’s Republic of China
| | - Xiaohai Zhang
- The Second Department of Neurosurgery, Hunan University of Medical General Hospital, Huaihua, Hunan, People’s Republic of China
| | - Changjun Luo
- The Second Department of Neurosurgery, Hunan University of Medical General Hospital, Huaihua, Hunan, People’s Republic of China
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17
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Sancho-Martínez SM, López-Hernández FJ. Pathophysiology of Acute Kidney Frailty. Physiology (Bethesda) 2023; 38:0. [PMID: 37738019 DOI: 10.1152/physiol.00011.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 06/28/2023] [Accepted: 06/29/2023] [Indexed: 09/23/2023] Open
Abstract
Acute kidney frailty is a premorbid condition of diminished renal functional reserve that predisposes to acute kidney injury; this condition results from subclinical wear or distortion of renal homeostatic responses that protect the renal excretory function. Knowledge of its pathophysiological basis is critical for the development of diagnostic and therapeutic strategies that allow for prophylactic intervention and disease prevention.
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Affiliation(s)
- Sandra M Sancho-Martínez
- Instituto de Investigación Biomédica de Salamanca (IBSAL), Salamanca, Spain
- Departamento de Fisiología y Farmacología, Universidad de Salamanca, Salamanca, Spain
- Group of Translational Research on Renal and Cardiovascular Diseases (TRECARD), Salamanca, Spain
- National Network for Kidney Research RICORS2040 RD21/0005/0004, Instituto de Salud Carlos III, Madrid, Spain
| | - Francisco J López-Hernández
- Instituto de Investigación Biomédica de Salamanca (IBSAL), Salamanca, Spain
- Departamento de Fisiología y Farmacología, Universidad de Salamanca, Salamanca, Spain
- Group of Translational Research on Renal and Cardiovascular Diseases (TRECARD), Salamanca, Spain
- National Network for Kidney Research RICORS2040 RD21/0005/0004, Instituto de Salud Carlos III, Madrid, Spain
- Instituto de Estudios de Ciencias de la Salud de Castilla y León (IECSCYL), Soria, Spain
- Group of Biomedical Research on Critical Care (BioCritic), Valladolid, Spain
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18
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Lin S, Wang J, Cao B, Huang Y, Sheng X, Zhu Y. Cofilin-1 induces acute kidney injury via the promotion of endoplasmic reticulum stress-mediated ferroptosis. Hum Cell 2023; 36:1928-1937. [PMID: 37548903 PMCID: PMC10587211 DOI: 10.1007/s13577-023-00949-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Accepted: 06/28/2023] [Indexed: 08/08/2023]
Abstract
Ischemia-reperfusion injury (IRI) leads to acute kidney injury (AKI), which poses serious threat to public health and society. Many clinical studies were conducted to evaluate several biomarkers in AKI, among which Cofilin-1 remains to be a very promising one. To explore the potential mechanism of Cofilin-1 in AKI, we established an oxygen-glucose-deprivation (OGD)-induced AKI cell model. The overexpression and knock-down Cofilin-1 were used for gain- and loss-of-function. Pharmacological inhibitors were employed to study the related pathways. The results showed that Cofilin-1 was significantly upregulated in AKI cells, knocking down Cofilin-1 protected cells against the effect of OGD treatment and alleviated AKI phenotypes. Overexpression of Cofilin-1 might induce AKI by triggering ferroptosis, inhibiting NF-κB signaling or ER stress pathway attenuated Cofilin-1 induced lipid peroxidation and AKI. We also validated our findings in IRI-induced AKI mouse models in vivo. Our work elucidated that Cofilin-1 might induce AKI via promoting ER stress-mediated ferroptosis and argues it as a biomarker for early diagnosis of AKI. We also expect to offer novel insights on future therapeutic interventions.
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Affiliation(s)
- Sihao Lin
- Department of Urology, Jiading Branch of Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 800 Huangjiahuayuan Road, Shanghai, 201803, People's Republic of China
| | - Jie Wang
- Department of Urology, Jiading Branch of Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 800 Huangjiahuayuan Road, Shanghai, 201803, People's Republic of China
| | - Bin Cao
- Department of Urology, Jiading Branch of Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 800 Huangjiahuayuan Road, Shanghai, 201803, People's Republic of China
| | - Yang Huang
- Department of Urology, Chengmai County People Hospital, Hainan, 571900, People's Republic of China
| | - Xujun Sheng
- Department of Urology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, People's Republic of China.
| | - Yingjian Zhu
- Department of Urology, Jiading Branch of Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 800 Huangjiahuayuan Road, Shanghai, 201803, People's Republic of China.
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Guo Y, Wang J, Hua Y, Jiang M, Xu W, Shi Y, Yang J, Wan H, Yang R. Network pharmacology and in vitro experimental verification to reveal the mechanism of Astragaloside IV against kidney ischemia-reperfusion injury. Heliyon 2023; 9:e21711. [PMID: 38027853 PMCID: PMC10660051 DOI: 10.1016/j.heliyon.2023.e21711] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 10/26/2023] [Accepted: 10/26/2023] [Indexed: 12/01/2023] Open
Abstract
Ischemic acute kidney injury (AKI) is a prevalent disorder among hospitalized patients worldwide. Astragaloside IV (AS-IV) has been shown to protect against ischemic AKI. However, the specific effects and mechanisms of AS-IV on alleviating kidney ischemia-reperfusion (I/R) injury remain unclear. The objective of this research was to elucidate the regulatory targets and mechanisms through which AS-IV protects kidney I/R injury. A combination of network pharmacology, molecular docking, molecular dynamics (MD) simulation, pharmacodynamic study and Western blot were employed to explore the underlying mechanisms. Network pharmacology revealed that ferroptosis was a potential mechanism of AS-IV against kidney I/R injury. Molecular docking and MD simulations demonstrated strong binding affinity between the GPX4/SLC7A11 and AS-IV. The experimental verification demonstrated that AS-IV improved cell proliferation, decreased the level of ROS and Fe2+, and increased the expressions of GPX4 and SLC7A11 as same as Ferrostatin-1 in OGD/R-injured HUVECs. In conclusion, AS-IV had a significant inhibition on ferroptosis in kidney I/R injury, providing a new perspective for drug development on kidney I/R injury. Definitely, further exploration in vivo is necessary to fully understand whether AS-IV alleviates kidney I/R injury through inhibiting endothelial ferroptosis.
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Affiliation(s)
- Yan Guo
- Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
- Key Laboratory of Kidney Disease Prevention and Control Technology, Zhejiang Province, 310053, China
| | - Jinfu Wang
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
| | - Yanjie Hua
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
| | - Mengya Jiang
- Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
- Key Laboratory of Kidney Disease Prevention and Control Technology, Zhejiang Province, 310053, China
| | - Wanyue Xu
- Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
- Key Laboratory of Kidney Disease Prevention and Control Technology, Zhejiang Province, 310053, China
| | - Yanpeng Shi
- Linping Hospital of Integrated Traditional Chinese and Western Medicine, Hangzhou, Zhejiang, 310053, China
| | - Jiehong Yang
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
| | - Haitong Wan
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
| | - Ruchun Yang
- Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
- Key Laboratory of Kidney Disease Prevention and Control Technology, Zhejiang Province, 310053, China
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Xing D, Ma Y, Lu M, Liu W, Zhou H. Paeoniflorin alleviates hypoxia/reoxygenation injury in HK-2 cells by inhibiting apoptosis and repressing oxidative damage via Keap1/Nrf2/HO-1 pathway. BMC Nephrol 2023; 24:314. [PMID: 37884904 PMCID: PMC10601317 DOI: 10.1186/s12882-023-03366-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Accepted: 10/13/2023] [Indexed: 10/28/2023] Open
Abstract
Acute kidney injury (AKI) is a serious disorder associated with significant morbidity and mortality. AKI and ischemia/reperfusion (hypoxia/reoxygenation, H/R) injury can be induced due to several reasons. Paeoniflorin (PF) is a traditional herbal medicine derived from Paeonia lactiflora Pall. It exerts diverse therapeutic effects, including anti-inflammatory, antioxidative, antiapoptotic, and immunomodulatory properties; thus, it is considered valuable for treating several diseases. However, the effects of PF on H/R injury-induced AKI remain unknown. In this study, we established an in vitro H/R model using COCL2 and investigated the functions and underlying mechanisms of PF on H/R injury in HK-2 cells. The cell vitality was evaluated using the cell count kit-8 assay. The DCFH-DA fluorescence probe was used to measure the levels of reactive oxygen species (ROS). Oxidative damage was detected using superoxide dismutase (SOD) and malondialdehyde (MDA) assay kits. Apoptotic relative protein and Keap1/Nrf2/HO-1 signaling were evaluated by Western blotting. Our results indicated that PF increased cell viability and SOD activity and decreased the ROS and MDA levels in HK-2 cells with H/R injury. PF inhibits apoptosis by increasing Bcl-2 and decreasing Bax. Furthermore, PF significantly upregulated the expression of HO-1 and Nrf2, but downregulated the expression of HIF-1α and Keap1. PF considerably increased Nrf2 nuclear translocation and unregulated the HO-1 expression. The Nrf2 inhibitor (ML385) could reverse the abovementioned protective effects of PF, suggesting that Nrf2 can be a critical target of PF. To conclude, we found that PF attenuates H/R injury-induced AKI by decreasing the oxidative damage via the Nrf2/HO-1 pathway and inhibiting apoptosis.
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Affiliation(s)
- Di Xing
- Department of Nephrology, The First Affiliated Hospital of Jinzhou Medical University, Liaoning, China
| | - Yihua Ma
- Department of Traditional Chinese Medicine, The First Affiliated Hospital of Jinzhou Medical University, Liaoning, China
| | - Miaomiao Lu
- Department of Nephrology, The First Affiliated Hospital of Jinzhou Medical University, Liaoning, China
| | - Wenlin Liu
- Department of Nephrology, The First Affiliated Hospital of Jinzhou Medical University, Liaoning, China
| | - Hongli Zhou
- Department of Nephrology, The First Affiliated Hospital of Jinzhou Medical University, Liaoning, China.
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21
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TORT M, SEVİL H, SEVİL FC, BECİT N, AKSU U, SARITAŞ ZK, DEMİREL HH, BÜLBÜL A, YAŞAR Z, BECİT KIZILKAYA M, SARITAŞ H. Protective effects of safranal on kidney tissue in a rat model of distant ischemia-reperfusion injury with infrarenal aortic occlusion. Turk J Med Sci 2023; 53:1574-1581. [PMID: 38813504 PMCID: PMC10760533 DOI: 10.55730/1300-0144.5726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 12/12/2023] [Accepted: 10/12/2023] [Indexed: 05/31/2024] Open
Abstract
Background/aim Ischemia-reperfusion (IR) injury to a part of the body can cause damage to distant organs such as the kidney and heart. This study investigated the protective effects of safranal against IR-induced renal injury. Materials and methods Used in this study were 24 Wistar Albino male rats, which were divided into 3 equal and randomised groups. The sham group underwent laparotomy only. In the IR group, the infrarenal aorta was clamped for 1 h, and then reperfused for 2 h. In the IR-safranal group, safranal was administered 30 min before the procedure and IR injury was induced in the same way as in the IR group. After the procedure, blood and tissue samples were collected from the rats for biochemical and histopathological analyses. Antioxidant capacity and proinflammatory cytokine analyses were performed on the blood samples. Terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) staining was performed to determine the number of cells undergoing apoptosis in the kidney tissue. Results The estimated glomerular filtration rate, an indicator of renal function, was lower in the IR group (p1 = 0.024 vs. p3 = 0.041, respectively) compared to the other groups, while creatinine levels were higher in the IR group compared to the other groups (p1 = 0.032 vs. p2 = 0.044, respectively). The blood urea nitrogen level was higher in the IR group than in the other groups (p1 = 0.001vs p2 = 0.035, respectively). The total antioxidant and total oxidant status, indicating tissue oxidative stress, did not differ between groups (p = 0.914 vs. p = 0.184, respectively). Among the proinflammatory cytokines, the interleukin-1β (IL-1β) and IL-6 levels were significantly higher in the IR group (p = 0.034 vs. p = 0.001, respectively), but the tumour necrosis factor-α (p = 0.19), and interferon-γ (p = 0.311) levels did not differ between groups. Histopathological examination showed significantly less damage to glomerular and tubular cells in the IR-safranal group (p < 0.001). The number of TUNEL-positive cells was higher in the IR group compared to the other groups (p < 0.001). Conclusion Safranal may have protective effects against kidney damage caused by distant ischemia-reperfusion injury.
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Affiliation(s)
- Mehmet TORT
- Department of Cardiovascular Surgery, Afyonkarahisar Health Sciences University, Faculty of Medicine, Afyonkarahisar,
Turkiye
| | - Hülya SEVİL
- Department of Emergency, Afyonkarahisar Health Sciences University, Faculty of Medicine, Afyonkarahisar,
Turkiye
| | - Fehim Can SEVİL
- Department of Cardiovascular Surgery, Afyonkarahisar Health Sciences University, Faculty of Medicine, Afyonkarahisar,
Turkiye
| | - Necip BECİT
- Department of Cardiovascular Surgery, Afyonkarahisar Health Sciences University, Faculty of Medicine, Afyonkarahisar,
Turkiye
| | - Uğur AKSU
- Department of Cardiology, Afyonkarahisar Health Sciences University, Faculty of Medicine, Afyonkarahisar,
Turkiye
| | - Zülfükar Kadir SARITAŞ
- Department of Surgery, Afyon Kocatepe University, Faculty of Veterinary Medicine, Afyonkarahisar,
Turkiye
| | - Hasan Hüseyin DEMİREL
- Department of Bayat Laborant and Veterinary Health Division, Afyon Kocatepe University, Faculty of Veterinary Medicine, Afyonkarahisar,
Turkiye
| | - Aziz BÜLBÜL
- Department of Physiology, Muğla Sıtkı Koçman University, Faculty of Milas Veterinary Medicine, Mugla,
Turkiye
| | - Zehra YAŞAR
- Department of Surgery, Afyon Kocatepe University, Faculty of Veterinary Medicine, Afyonkarahisar,
Turkiye
| | - Merve BECİT KIZILKAYA
- Department of Pharmaceutical Toxicology, Afyonkarahisar Health Sciences University, Faculty of Pharmacy, Afyonkarahisar,
Turkiye
| | - Hazen SARITAŞ
- Department of Nephrology, Aksaray University, Faculty of Medicine, Aksaray,
Turkiye
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22
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Wang RL, Liu SH, Shen SH, Jian LY, Yuan Q, Guo HH, Huang JS, Chen PH, Huang RF. Protective Mechanism of Cordyceps sinensis Treatment on Acute Kidney Injury-Induced Acute Lung Injury through AMPK/mTOR Signaling Pathway. Chin J Integr Med 2023; 29:875-884. [PMID: 36843056 DOI: 10.1007/s11655-023-3593-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/09/2022] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To investigate protective effect of Cordyceps sinensis (CS) through autophagy-associated adenosine monophosphate-activated protein kinase (AMPK)/mammalian target of rapamycin (mTOR) signaling pathway in acute kidney injury (AKI)-induced acute lung injury (ALI). METHODS Forty-eight male Sprague-Dawley rats were divided into 4 groups according to a random number table, including the normal saline (NS)-treated sham group (sham group), NS-treated ischemia reperfusion injury (IRI) group (IRI group), and low- (5 g/kg·d) and high-dose (10 g/kg·d) CS-treated IRI groups (CS1 and CS2 groups), 12 rats in each group. Nephrectomy of the right kidney was performed on the IRI rat model that was subjected to 60 min of left renal pedicle occlusion followed by 12, 24, 48, and 72 h of reperfusion. The wet-to-dry (W/D) ratio of lung, levels of serum creatinine (Scr), blood urea nitrogen (BUN), inflammatory cytokines such as interleukin- β and tumor necrosis factor- α, and biomarkers of oxidative stress such as superoxide dismutase, malonaldehyde (MDA) and myeloperoxidase (MPO), were assayed. Histological examinations were conducted to determine damage of tissues in the kidney and lung. The protein expressions of light chain 3 II/light chain 3 I (LC3-II/LC3-I), uncoordinated-51-like kinase 1 (ULK1), P62, AMPK and mTOR were measured by Western blot and immunohistochemistry, respectively. RESULTS The renal IRI induced pulmonary injury following AKI, resulting in significant increases in W/D ratio of lung, and the levels of Scr, BUN, inflammatory cytokines, MDA and MPO (P<0.01); all of these were reduced in the CS groups (P<0.05 or P<0.01). Compared with the IRI groups, the expression levels of P62 and mTOR were significantly lower (P<0.05 or P<0.01), while those of LC3-II/LC3-I, ULK1, and AMPK were significantly higher in the CS2 group (P<0.05 or P<0.01). CONCLUSION CS had a potential in treating lung injury following renal IRI through activation of the autophagy-related AMPK/mTOR signaling pathway in AKI-induced ALI.
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Affiliation(s)
- Ruo-Lin Wang
- Nephropathy Department, Shenzhen Hospital (Futian) of Guangzhou University of Chinese Medicine, Shenzhen, Guangdong Province, 518034, China
- The Third Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Shu-Hua Liu
- The Third Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Si-Heng Shen
- Nephropathy Department, Shenzhen Hospital (Futian) of Guangzhou University of Chinese Medicine, Shenzhen, Guangdong Province, 518034, China
- The Third Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Lu-Yong Jian
- Nephropathy Department, Shenzhen Hospital (Futian) of Guangzhou University of Chinese Medicine, Shenzhen, Guangdong Province, 518034, China
- The Third Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Qi Yuan
- Nephropathy Department, Shenzhen Hospital (Futian) of Guangzhou University of Chinese Medicine, Shenzhen, Guangdong Province, 518034, China
- The Third Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Hua-Hui Guo
- Nephropathy Department, Shenzhen Hospital (Futian) of Guangzhou University of Chinese Medicine, Shenzhen, Guangdong Province, 518034, China
| | - Jia-Sheng Huang
- Nephropathy Department, Shenzhen Hospital (Futian) of Guangzhou University of Chinese Medicine, Shenzhen, Guangdong Province, 518034, China
| | - Peng-Hui Chen
- Nephropathy Department, Shenzhen Hospital (Futian) of Guangzhou University of Chinese Medicine, Shenzhen, Guangdong Province, 518034, China
| | - Ren-Fa Huang
- Nephropathy Department, Shenzhen Hospital (Futian) of Guangzhou University of Chinese Medicine, Shenzhen, Guangdong Province, 518034, China.
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23
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Thielemans R, Speeckaert R, Delrue C, De Bruyne S, Oyaert M, Speeckaert MM. Unveiling the Hidden Power of Uromodulin: A Promising Potential Biomarker for Kidney Diseases. Diagnostics (Basel) 2023; 13:3077. [PMID: 37835820 PMCID: PMC10572911 DOI: 10.3390/diagnostics13193077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/25/2023] [Accepted: 09/26/2023] [Indexed: 10/15/2023] Open
Abstract
Uromodulin, also known as Tamm-Horsfall protein, represents the predominant urinary protein in healthy individuals. Over the years, studies have revealed compelling associations between urinary and serum concentrations of uromodulin and various parameters, encompassing kidney function, graft survival, cardiovascular disease, glucose metabolism, and overall mortality. Consequently, there has been a growing interest in uromodulin as a novel and effective biomarker with potential applications in diverse clinical settings. Reduced urinary uromodulin levels have been linked to an elevated risk of acute kidney injury (AKI) following cardiac surgery. In the context of chronic kidney disease (CKD) of different etiologies, urinary uromodulin levels tend to decrease significantly and are strongly correlated with variations in estimated glomerular filtration rate. The presence of uromodulin in the serum, attributable to basolateral epithelial cell leakage in the thick ascending limb, has been observed. This serum uromodulin level is closely associated with kidney function and histological severity, suggesting its potential as a biomarker capable of reflecting disease severity across a spectrum of kidney disorders. The UMOD gene has emerged as a prominent locus linked to kidney function parameters and CKD risk within the general population. Extensive research in multiple disciplines has underscored the biological significance of the top UMOD gene variants, which have also been associated with hypertension and kidney stones, thus highlighting the diverse and significant impact of uromodulin on kidney-related conditions. UMOD gene mutations are implicated in uromodulin-associated kidney disease, while polymorphisms in the UMOD gene show a significant association with CKD. In conclusion, uromodulin holds great promise as an informative biomarker, providing valuable insights into kidney function and disease progression in various clinical scenarios. The identification of UMOD gene variants further strengthens its relevance as a potential target for better understanding kidney-related pathologies and devising novel therapeutic strategies. Future investigations into the roles of uromodulin and regulatory mechanisms are likely to yield even more profound implications for kidney disease diagnosis, risk assessment, and management.
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Affiliation(s)
- Raïsa Thielemans
- Department of Nephrology, Ghent University Hospital, 9000 Ghent, Belgium; (R.T.); (C.D.)
| | | | - Charlotte Delrue
- Department of Nephrology, Ghent University Hospital, 9000 Ghent, Belgium; (R.T.); (C.D.)
| | - Sander De Bruyne
- Department of Laboratory Medicine, Ghent University Hospital, 9000 Ghent, Belgium; (S.D.B.); (M.O.)
| | - Matthijs Oyaert
- Department of Laboratory Medicine, Ghent University Hospital, 9000 Ghent, Belgium; (S.D.B.); (M.O.)
| | - Marijn M. Speeckaert
- Department of Nephrology, Ghent University Hospital, 9000 Ghent, Belgium; (R.T.); (C.D.)
- Research Foundation Flanders, 1000 Brussels, Belgium
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24
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McLarnon SR, Johnson C, Sun J, Wei Q, Csanyi G, O'Herron P, Marshall B, Giddens P, Sullivan JC, Barrett A, O'Connor PM. Extravasation of Blood and Blood Toxicity Drives Tubular Injury from RBC Trapping in Ischemic AKI. FUNCTION 2023; 4:zqad050. [PMID: 37753180 PMCID: PMC10519276 DOI: 10.1093/function/zqad050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 08/04/2023] [Accepted: 08/24/2023] [Indexed: 09/28/2023] Open
Abstract
Red blood cell (RBC) trapping is common in ischemic acute kidney injury (AKI) and presents as densely packed RBCs that accumulate within and engorge the kidney medullary circulation. In this study, we tested the hypothesis that "RBC trapping directly promotes tubular injury independent of extending ischemia time." Studies were performed on rats. Red blood cell congestion and tubular injury were compared between renal arterial clamping, venous clamping, and venous clamping of blood-free kidneys. Vessels were occluded for either 15 or 45 min with and without reperfusion. We found that RBC trapping in the medullary capillaries occurred rapidly following reperfusion from renal arterial clamping and that this was associated with extravasation of blood from congested vessels, uptake of blood proteins by the tubules, and marked tubular injury. To determine if this injury was due to blood toxicity or an extension of ischemia time, we compared renal venous and arterial clamping without reperfusion. Venous clamping resulted in RBC trapping and marked tubular injury within 45 min of ischemia. Conversely, despite the same ischemia time, RBC trapping and tubular injury were minimal following arterial clamping without reperfusion. Confirming the role of blood toward tubular injury, injury was markedly reduced in blood-free kidneys with venous clamping. Our data demonstrate that RBC trapping results in the rapid extravasation and uptake of blood components by tubular cells, causing toxic tubular injury. Tubular toxicity from extravasation of blood following RBC trapping appears to be a major component of tubular injury in ischemic AKI, which has not previously been recognized.
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Affiliation(s)
- Sarah R McLarnon
- Department of Physiology, Medical College of Georgia, Augusta University, 30912, Augusta, GA, USA
- Department of Cell Biology and Physiology, School of Medicine, University of North Carolina, 27599, Chapel Hill, NC, USA
| | - Chloe Johnson
- Department of Physiology, Medical College of Georgia, Augusta University, 30912, Augusta, GA, USA
| | - Jingping Sun
- Department of Physiology, Medical College of Georgia, Augusta University, 30912, Augusta, GA, USA
| | - Qingqing Wei
- Department of Anatomy and Cell Biology, Medical College of Georgia, Augusta University, 30912, Augusta, GA, USA
| | - Gabor Csanyi
- Department of Pharmacology and Toxicology, Augusta University, 30912, Augusta, GA, USA
| | - Phillip O'Herron
- Department of Physiology, Medical College of Georgia, Augusta University, 30912, Augusta, GA, USA
| | - Brendan Marshall
- Department of Anatomy and Cell Biology, Medical College of Georgia, Augusta University, 30912, Augusta, GA, USA
| | - Priya Giddens
- Department of Physiology, Medical College of Georgia, Augusta University, 30912, Augusta, GA, USA
| | - Jennifer C Sullivan
- Department of Physiology, Medical College of Georgia, Augusta University, 30912, Augusta, GA, USA
| | - Amanda Barrett
- Department of Pathology, Medical College of Georgia, Augusta University, 30912, Augusta, GA, USA
| | - Paul M O'Connor
- Department of Physiology, Medical College of Georgia, Augusta University, 30912, Augusta, GA, USA
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25
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DiKun KM, Gudas LJ. Vitamin A and retinoid signaling in the kidneys. Pharmacol Ther 2023; 248:108481. [PMID: 37331524 PMCID: PMC10528136 DOI: 10.1016/j.pharmthera.2023.108481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/18/2023] [Accepted: 06/14/2023] [Indexed: 06/20/2023]
Abstract
Vitamin A (VA, retinol) and its metabolites (commonly called retinoids) are required for the proper development of the kidney during embryogenesis, but retinoids also play key roles in the function and repair of the kidney in adults. Kidneys filter 180-200 liters of blood per day and each kidney contains approximately 1 million nephrons, which are often referred to as the 'functional units' of the kidney. Each nephron consists of a glomerulus and a series of tubules (proximal tubule, loop of Henle, distal tubule, and collecting duct) surrounded by a network of capillaries. VA is stored in the liver and converted to active metabolites, most notably retinoic acid (RA), which acts as an agonist for the retinoic acid receptors ((RARs α, β, and γ) to regulate gene transcription. In this review we discuss some of the actions of retinoids in the kidney after injury. For example, in an ischemia-reperfusion model in mice, injury-associated loss of proximal tubule (PT) differentiation markers occurs, followed by re-expression of these differentiation markers during PT repair. Notably, healthy proximal tubules express ALDH1a2, the enzyme that metabolizes retinaldehyde to RA, but transiently lose ALDH1a2 expression after injury, while nearby myofibroblasts transiently acquire RA-producing capabilities after injury. These results indicate that RA is important for renal tubular injury repair and that compensatory mechanisms exist for the generation of endogenous RA by other cell types upon proximal tubule injury. ALDH1a2 levels also increase in podocytes, epithelial cells of the glomeruli, after injury, and RA promotes podocyte differentiation. We also review the ability of exogenous, pharmacological doses of RA and receptor selective retinoids to treat numerous kidney diseases, including kidney cancer and diabetic kidney disease, and the emerging genetic evidence for the importance of retinoids and their receptors in maintaining or restoring kidney function after injury. In general, RA has a protective effect on the kidney after various types of injuries (eg. ischemia, cytotoxic actions of chemicals, hyperglycemia related to diabetes). As more research into the actions of each of the three RARs in the kidney is carried out, a greater understanding of the actions of vitamin A is likely to lead to new insights into the pathology of kidney disorders and the development of new therapies for kidney diseases.
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Affiliation(s)
- Krysta M DiKun
- Department of Pharmacology, Weill Cornell Medical College of Cornell University, New York, NY, USA; New York Presbyterian Hospital, New York, NY, USA; Weill Cornell Graduate School of Medical Sciences, New York, NY, USA
| | - Lorraine J Gudas
- Department of Pharmacology, Weill Cornell Medical College of Cornell University, New York, NY, USA; Department of Urology, Weill Cornell Medicine, New York, NY, USA; New York Presbyterian Hospital, New York, NY, USA; Weill Cornell Graduate School of Medical Sciences, New York, NY, USA.
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26
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Chiang CH, Chen C, Fang SY, Lin SC, Chen JW, Chang TT. Xanthine oxidase/NADPH oxidase inhibition by hydralazine attenuates acute kidney injury and prevents the transition of acute kidney injury to chronic kidney disease. Life Sci 2023:121863. [PMID: 37331504 DOI: 10.1016/j.lfs.2023.121863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 06/05/2023] [Accepted: 06/12/2023] [Indexed: 06/20/2023]
Abstract
AIMS The enhancement of inflammation and reactive oxygen species leads to the damage of renal tubular cells in acute kidney injury (AKI), and the upregulation of inflammation increases the risk of AKI being converted into chronic kidney disease (CKD). Hydralazine has shown renoprotective effects in multiple kidney diseases and was shown to be a potent xanthine oxidase (XO) inhibitor. This study aimed to investigate the mechanisms of hydralazine in ischemia-reperfusion (I/R)-stimulated renal proximal tubular epithelial cells in vitro and in AKI animals in vivo. MAIN METHODS The effects of hydralazine in AKI-to-CKD transition were also evaluated. Human renal proximal tubular epithelial cells were stimulated by I/R conditions in vitro. To generate a mouse model of AKI, a right nephrectomy was performed, followed by left renal pedicle I/R using a small atraumatic clamp. KEY FINDINGS In the in vitro part, hydralazine could protect renal proximal tubular epithelial cells against insults from the I/R injury through XO/NADPH oxidase inhibition. In the in vivo part, hydralazine preserved renal function in AKI mice and improved the AKI-to-CKD transition by decreasing renal glomerulosclerosis and fibrosis independently of blood pressure lowering. Furthermore, hydralazine exerted antioxidant, anti-inflammatory, and anti-fibrotic effects both in vitro and in vivo. SIGNIFICANCE Hydralazine, as a XO/NADPH oxidase inhibitor, could protect renal proximal tubular epithelial cells from the insults of I/R and prevent kidney damage in AKI and AKI-to-CKD. The above experimental studies strengthen the possibility of repurposing hydralazine as a potential renoprotective agent through its antioxidative mechanisms.
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Affiliation(s)
- Chih-Hung Chiang
- Department of Urology/Medical Research and Education, Taipei Veterans General Hospital, Yuan-Shan, Yilan, Taiwan; Department of Urology, National Taiwan University Hospital, Taipei, Taiwan; Department of Nursing, Cardinal Tien Junior College of Healthcare and Management, New Taipei, Taiwan
| | - Ching Chen
- Department and Institute of Pharmacology, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Shih-Ying Fang
- Department and Institute of Pharmacology, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Su-Chu Lin
- Department of Urology/Medical Research and Education, Taipei Veterans General Hospital, Yuan-Shan, Yilan, Taiwan
| | - Jaw-Wen Chen
- Department and Institute of Pharmacology, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Division of Cardiology and Cardiovascular Research Center, Taipei Medical University Hospital, Taipei, Taiwan; Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Cardiovascular Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Ting-Ting Chang
- Department and Institute of Pharmacology, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Biomedical Industry Ph.D. Program, National Yang Ming Chiao Tung University, Taipei, Taiwan.
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27
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Liu C, Wang Q, Niu L. Sufentanil inhibits Pin1 to attenuate renal tubular epithelial cell ischemia-reperfusion injury by activating the PI3K/AKT/FOXO1 pathway. Int Urol Nephrol 2023:10.1007/s11255-023-03651-9. [PMID: 37300758 DOI: 10.1007/s11255-023-03651-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 05/25/2023] [Indexed: 06/12/2023]
Abstract
BACKGROUND Renal ischemia-reperfusion injury (RIRI) has become a great concern in clinical practice with high morbidity and mortality rates. Sufentanil has protective effects on IRI-induced organ injury. Herein, the effects of sufentanil on RIRI were investigated. METHODS RIRI cell model was established by hypoxia/reperfusion (H/R) stimulation. The mRNA and protein expressions were assessed using qRT-PCR and western blot. TMCK-1 cell viability and apoptosis were assessed using MTT assay and flow cytometry, respectively. The mitochondrial membrane potential and ROS level were detected by JC-1 mitochondrial membrane potential fluorescent probe and DCFH-DA fluorescent probe, respectively. LDH, SOD, CAT, GSH and MDA levels were determined by the kits. The interaction between FOXO1 and Pin1 promoter was analyzed using dual luciferase reporter gene and ChIP assays. RESULTS Our results revealed that sufentanil treatment attenuated H/R-induced cell apoptosis, mitochondrial membrane potential (MMP) dysfunction, oxidative stress, inflammation and activated PI3K/AKT/FOXO1 associated proteins, while these effects were reversed by PI3K inhibitor, suggesting that sufentanil attenuated RIRI via activating the PI3K/AKT/FOXO1 signaling pathway. We subsequently found that FOXO1 transcriptionally activated Pin1 in TCMK-1 cells. Pin1 inhibition ameliorated H/R-induced TCMK-1 cell apoptosis, oxidative stress and inflammation. In addition, as expected, the biological effects of sufentanil on H/R-treated TMCK-1 cells were abrogated by Pin1 overexpression. CONCLUSION Sufentanil reduced Pin1 expression through activation of the PI3K/AKT/FOXO1 signaling to suppress cell apoptosis, oxidative stress and inflammation in renal tubular epithelial cells during RIRI development.
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Affiliation(s)
- Chunhui Liu
- Jiamusi University, Harbin, 154000, Heilongjiang, China
| | - Qingdong Wang
- Department of Anesthesiology, The First Affiliated Hospital of Jiamusi University, Harbin, 154002, Heilongjiang, China
| | - Li Niu
- Department of Anesthesiology, Heilongjiang Sengong General Hospital, No.32 Hexing Road, Xiangfang District, Harbin, 150040, Heilongjiang, China.
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28
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Hess HW, Baker TB, Keeler JM, Freemas JA, Worley ML, Johnson BD, Schlader ZJ. Elevations in sweat sodium concentration following ischemia-reperfusion injury during passive heat stress. J Appl Physiol (1985) 2023; 134:1364-1375. [PMID: 37055036 PMCID: PMC10190839 DOI: 10.1152/japplphysiol.00702.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 03/20/2023] [Accepted: 04/06/2023] [Indexed: 04/15/2023] Open
Abstract
Renal ischemia-reperfusion (I/R) injury results in damage to the renal tubules and causes impairments in sodium [Na+] reabsorption. Given the inability to conduct mechanistic renal I/R injury studies in vivo in humans, eccrine sweat glands have been proposed as a surrogate model given the anatomical and physiological similarities. We tested the hypothesis that sweat Na+ concentration is elevated following I/R injury during passive heat stress. We also tested the hypothesis that I/R injury during heat stress will impair cutaneous microvascular function. Fifteen young healthy adults completed ∼160 min of passive heat stress using a water-perfused suit (50°C). At 60 min of whole body heating, one upper arm was occluded for 20 min followed by a 20-min reperfusion. Sweat was collected from each forearm via an absorbent patch pre- and post-I/R. Following the 20-min reperfusion, cutaneous microvascular function was measured via local heating protocol. Cutaneous vascular conductance (CVC) was calculated as red blood cell flux/mean arterial pressure and normalized to CVC during local heating to 44°C. Na+ concentration was log-transformed and data were reported as a mean change from pre-I/R (95% confidence interval). Changes in sweat sodium concentration from pre-I/R differed between arms post-I/R (experimental arm: +0.97 [+0.67 - 1.27] [LOG] Na+; control arm: +0.68 [+0.38 - 0.99] [LOG] Na+; P < 0.01). However, CVC during the local heating was not different between the experimental (80 ± 10%max) and control arms (78 ± 10%max; P = 0.59). In support of our hypothesis, Na+ concentration was elevated following I/R injury, but likely not accompanied by alterations in cutaneous microvascular function.NEW & NOTEWORTHY In the present study, we have demonstrated that sweat sodium concentration is elevated following ischemia-reperfusion injury during passive heat stress. This does not appear to be mediated by reductions in cutaneous microvascular function or active sweat glands, but may be related to alterations in local sweating responses during heat stress. This study demonstrates a potential use of eccrine sweat glands to understand sodium handling following ischemia-reperfusion injury, particularly given the challenges of in vivo studies of renal ischemia-reperfusion injury in humans.
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Affiliation(s)
- Hayden W Hess
- Environmental Physiology Laboratory, Department of Kinesiology, Indiana University Bloomington, Bloomington, Indiana, United States
| | - Tyler B Baker
- Environmental Physiology Laboratory, Department of Kinesiology, Indiana University Bloomington, Bloomington, Indiana, United States
| | - Jason M Keeler
- Environmental Physiology Laboratory, Department of Kinesiology, Indiana University Bloomington, Bloomington, Indiana, United States
| | - Jessica A Freemas
- Environmental Physiology Laboratory, Department of Kinesiology, Indiana University Bloomington, Bloomington, Indiana, United States
| | - Morgan L Worley
- Center for Research and Education in Special Environments, Department of Exercise and Nutrition Sciences, University at Buffalo, Buffalo, New York, United States
| | - Blair D Johnson
- Environmental Physiology Laboratory, Department of Kinesiology, Indiana University Bloomington, Bloomington, Indiana, United States
| | - Zachary J Schlader
- Environmental Physiology Laboratory, Department of Kinesiology, Indiana University Bloomington, Bloomington, Indiana, United States
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Patschan D, Patschan S, Matyukhin I, Hoffmeister M, Lauxmann M, Ritter O, Dammermann W. Metabolomics in Acute Kidney Injury: The Experimental Perspective. J Clin Med Res 2023; 15:283-291. [PMID: 37434774 PMCID: PMC10332883 DOI: 10.14740/jocmr4913] [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: 03/20/2023] [Accepted: 05/08/2023] [Indexed: 07/13/2023] Open
Abstract
Acute kidney injury (AKI) affects increasing numbers of in-hospital patients in Central Europe and the USA, the prognosis remains poor. Although substantial progress has been achieved in the identification of molecular/cellular processes that induce and perpetuate AKI, more integrated pathophysiological perspectives are missing. Metabolomics enables the identification of low-molecular-weight (< 1.5 kD) substances from biological specimens such as certain types of fluid or tissue. The aim of the article was to review the literature on metabolic profiling in experimental AKI and to answer the question if metabolomics allows the integration of distinct pathophysiological events such as tubulopathy and microvasculopathy in ischemic and toxic AKI. The following databases were searched for references: PubMed, Web of Science, Cochrane Library, Scopus. The period lasted from 1940 until 2022. The following terms were utilized: "acute kidney injury" OR "acute renal failure" OR "AKI" AND "metabolomics" OR "metabolic profiling" OR "omics" AND "ischemic" OR "toxic" OR "drug-induced" OR "sepsis" OR "LPS" OR "cisplatin" OR "cardiorenal" OR "CRS" AND "mouse" OR "mice" OR "murine" OR "rats" OR "rat". Additional search terms were "cardiac surgery", "cardiopulmonary bypass", "pig", "dog", and "swine". In total, 13 studies were identified. Five studies were related to ischemic, seven studies to toxic (lipopolysaccharide (LPS), cisplatin), and one study to heat shock-associated AKI. Only one study, related to cisplatin-induced AKI, was performed as a targeted analysis. The majority of the studies identified multiple metabolic deteriorations upon ischemia/the administration of LPS or cisplatin (e.g., amino acid, glucose, lipid metabolism). Particularly, abnormalities in the lipid homeostasis were shown under almost all experimental conditions. LPS-induced AKI most likely depends on the alterations in the tryptophan metabolism. Metabolomics studies provide a deeper understanding of pathophysiological links between distinct processes that are responsible for functional impairment/structural damage in ischemic or toxic or other types of AKI.
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Affiliation(s)
- Daniel Patschan
- Department of Medicine 1, Cardiology, Angiology, Nephrology, University Hospital Brandenburg of the Brandenburg Medical School Theodor Fontane, Brandenburg, Germany
- Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Germany
| | - Susann Patschan
- Department of Medicine 1, Cardiology, Angiology, Nephrology, University Hospital Brandenburg of the Brandenburg Medical School Theodor Fontane, Brandenburg, Germany
| | - Igor Matyukhin
- Department of Medicine 1, Cardiology, Angiology, Nephrology, University Hospital Brandenburg of the Brandenburg Medical School Theodor Fontane, Brandenburg, Germany
| | - Meike Hoffmeister
- Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Germany
- Institute of Biochemistry, Brandenburg Medical School Theodor Fontane, Brandenburg, Germany
| | - Martin Lauxmann
- Institute of Biochemistry, Brandenburg Medical School Theodor Fontane, Brandenburg, Germany
| | - Oliver Ritter
- Department of Medicine 1, Cardiology, Angiology, Nephrology, University Hospital Brandenburg of the Brandenburg Medical School Theodor Fontane, Brandenburg, Germany
- Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Germany
| | - Werner Dammermann
- Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Germany
- Department of Medicine 2, Gastroenterology, Diabetes, Endocrinology, University Hospital Brandenburg of the Brandenburg Medical School Theodor Fontane, Brandenburg, Germany
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Kaur A, Sharma GS, Kumbala DR. Acute kidney injury in diabetic patients: A narrative review. Medicine (Baltimore) 2023; 102:e33888. [PMID: 37233407 PMCID: PMC10219694 DOI: 10.1097/md.0000000000033888] [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: 02/18/2023] [Accepted: 05/09/2023] [Indexed: 05/27/2023] Open
Abstract
Diabetes mellitus (DM) is the most common cause of chronic kidney disease, which leads to end-stage renal failure worldwide. Glomerular damage, renal arteriosclerosis, and atherosclerosis are the contributing factors in diabetic patients, leading to the progression of kidney damage. Diabetes is a distinct risk factor for acute kidney injury (AKI) and AKI is associated with faster advancement of renal disease in patients with diabetes. The long-term consequences of AKI include the development of end-stage renal disease, higher cardiovascular and cerebral events, poor quality of life, and high morbidity and mortality. In general, not many studies discussed extensively "AKI in DM." Moreover, articles addressing this topic are scarce. It is also important to know the cause of AKI in diabetic patients so that timely intervention and preventive strategies can be implemented to decrease kidney injury. Aim of this review article is to address the epidemiology of AKI, its risk factors, different pathophysiological mechanisms, how AKI differs between diabetic and nondiabetic patients and its preventive and therapeutic implications in diabetics. The increasing occurrence and prevalence of AKI and DM, as well as other pertinent issues, motivated us to address this topic.
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Affiliation(s)
- Amninder Kaur
- Senior Resident, Department of Nephrology, All India Institute of Medical Sciences Rishikesh, Uttarakhand, India
| | - Gaurav Shekhar Sharma
- Assistant Professor, Department of Nephrology, All India Institute of Medical Sciences Rishikesh, Uttrakhand, India
| | - Damodar R Kumbala
- Diagnostic and Interventional Nephrologist, Renal Associates of Baton Rogue, Baton Rogue, LA
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Foguenne M, MacMillan S, Kron P, Nath J, Devresse A, De Meyer M, Michel M, Hosgood S, Darius T. Current Evidence and Future Perspectives to Implement Continuous and End-Ischemic Use of Normothermic and Oxygenated Hypothermic Machine Perfusion in Clinical Practice. J Clin Med 2023; 12:jcm12093207. [PMID: 37176647 PMCID: PMC10178893 DOI: 10.3390/jcm12093207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 04/26/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023] Open
Abstract
The use of high-risk renal grafts for transplantation requires the optimization of pretransplant assessment and preservation reconditioning strategies to decrease the organ discard rate and to improve short- and long-term clinical outcomes. Active oxygenation is increasingly recognized to play a central role in dynamic preservation strategies, independent of preservation temperature, to recondition mitochondria and to restore the cellular energy profile. The oxygen-related decrease in mitochondrial succinate accumulation ameliorates the harmful effects of ischemia-reperfusion injury. The differences between normothermic and hypothermic machine perfusion with regard to organ assessment, preservation, and reconditioning, as well as the logistic and economic implications, are factors to take into consideration for implementation at a local level. Therefore, these different techniques should be considered complementary to the perfusion strategy selected depending on functional intention and resource availability. This review provides an overview of the current clinical evidence of normothermic and oxygenated hypothermic machine perfusion, either as a continuous or end-ischemic preservation strategy, and future perspectives.
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Affiliation(s)
- Maxime Foguenne
- Surgery and Abdominal Transplant Unit, Department of Surgery, University Clinics Saint Luc, Université Catholique de Louvain, 1200 Brussels, Belgium
| | - Serena MacMillan
- Department of Surgery, University of Cambridge, Addenbrooke's Hospital, Cambridge CB2 0QQ, UK
| | - Philipp Kron
- Department of Surgery and Transplantation, Swiss HPB Center, University Hospital Zurich, 8091 Zurich, Switzerland
| | - Jay Nath
- Department of Renal Transplantation, Southmead Hospital Bristol, Bristol BS10 5NB, UK
| | - Arnaud Devresse
- Surgery and Abdominal Transplant Unit, Department of Surgery, University Clinics Saint Luc, Université Catholique de Louvain, 1200 Brussels, Belgium
- Department of Nephrology, University Clinics Saint-Luc, Université Catholique de Louvain, 1200 Brussels, Belgium
| | - Martine De Meyer
- Surgery and Abdominal Transplant Unit, Department of Surgery, University Clinics Saint Luc, Université Catholique de Louvain, 1200 Brussels, Belgium
| | - Mourad Michel
- Surgery and Abdominal Transplant Unit, Department of Surgery, University Clinics Saint Luc, Université Catholique de Louvain, 1200 Brussels, Belgium
| | - Sarah Hosgood
- Department of Surgery, University of Cambridge, Addenbrooke's Hospital, Cambridge CB2 0QQ, UK
| | - Tom Darius
- Surgery and Abdominal Transplant Unit, Department of Surgery, University Clinics Saint Luc, Université Catholique de Louvain, 1200 Brussels, Belgium
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Embaby EM, Saleh RM, Marghani BH, Barakat N, Awadin W, Elshal MF, Ali IS, Abu-Heakal N. The combined effect of zinc oxide nanoparticles and milrinone on acute renal ischemia/reperfusion injury in rats: Potential underlying mechanisms. Life Sci 2023; 323:121435. [PMID: 37068707 DOI: 10.1016/j.lfs.2023.121435] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 01/11/2023] [Accepted: 01/20/2023] [Indexed: 04/19/2023]
Abstract
AIM To investigate the efficacy of zinc oxide nanoparticles (ZnO-NPs) and/or milrinone (MIL) on renal ischemia/reperfusion injury (I/RI) in rats and their possible underlying mechanisms. MATERIALS AND METHODS Forty-eight adult male Sprague-Dawley albino rats were randomly assigned into six equal-sized groups (n = 8): normal control, sham-operated, I/R group (45 min/24 h), ZnO-NPs group (10 mg/Kg i.p.), MIL group (0.5 mg/Kg i.p.), and ZnO-NPs + MIL group in the same previous doses. KEY FINDINGS In comparison to the I/R-operated group, administration of either ZnO-NPs or MIL significantly decreased serum creatinine and urea concentrations, and renal vascular permeability (p < 0.05). The oxidative stress was significantly declined, as evidenced by increased GPx, CAT, and SOD activities and decreased MDA and NO concentrations. Renal expressions of TNF-α, NF-κB, KIM-1, NGAL, and caspase-3 decreased significantly, while Nrf2 increased significantly. Histopathology investigation revealed improvement with minimal renal lesions and fibrosis after ZnO-NPs or MIL treatments. The combined treatments synergistically improved the studied parameters more than either treatment alone. These findings were validated by molecular modeling, which revealed that MIL inhibited TNF-α, NF-kB, caspase-3, KIM-1 and NGAL. SIGNIFICANCE Both ZnO-NPs and MIL exerted cytoprotective effects against acute renal I/RI, and a combination of both was found to be even more effective. This renoprotective effect is suggested to be mediated through activation of Nrf2 and the prevention of the NF-κB activation-induced oxidative stress and inflammation, which may strengthen the potential role of ZnO-NPs or MIL in renal I/RI protection during surgical procedures.
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Affiliation(s)
- Eman M Embaby
- Department of Physiology, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Rasha M Saleh
- Department of Physiology, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt.
| | - Basma H Marghani
- Department of Physiology, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt; Department of Biochemistry, Physiology and Pharmacology, Faculty of Veterinary Medicine, King Salman International University, Ras Sudr, South of Sinaa 46612, Egypt
| | - Nashwa Barakat
- Urology and Nephrology Center, Mansoura University, Mansoura 35516, Egypt
| | - Walaa Awadin
- Department of Pathology, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Mohamed F Elshal
- Molecular Biology Department, Genetic Engineering and Biotechnology Institute, University of Sadat City, Sadat City, Egypt
| | - Islam S Ali
- Basic Science Department, Delta University for Science and Technology, Gamasa, Dakahlia, Egypt
| | - Nabil Abu-Heakal
- Department of Physiology, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt
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Guo L, Chen D, Cheng B, Gong Y, Wang B. Prognostic Value of the Red Blood Cell Distribution Width-to-Albumin Ratio in Critically Ill Older Patients with Acute Kidney Injury: A Retrospective Database Study. Emerg Med Int 2023; 2023:3591243. [PMID: 37051465 PMCID: PMC10085652 DOI: 10.1155/2023/3591243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 03/10/2023] [Accepted: 03/23/2023] [Indexed: 04/05/2023] Open
Abstract
Background. There is no evidence suggesting that red blood cell distribution width-to-albumin ratio (RA) predicts outcomes in severely ill older individuals with acute kidney injury (AKI). We hypothesized that RA is associated with all-cause mortality in critically ill older patients with AKI. Methods. We recorded demographics, laboratory tests, comorbidities, vital signs, and other clinical information from the MIMIC-III V1.4 dataset. The primary endpoint was 90-day all-cause mortality, and the secondary endpoints were 30-day mortality, one-year mortality, renal replacement treatment (RRT), duration of stay in the intensive care unit (ICU), sepsis, and septic shock. We generated Cox proportional hazards and logistic regression models to determine RA’s prognostic values and subgroup analyses to determine the subgroups’ mortality. We conducted a Pearson correlation analysis on RA and C-reactive protein (CRP) in the cohort of patients from the Second Affiliated Hospital of Wenzhou Medical University. Results. A total of 6,361 patients were extracted from MIMIC-III based on the inclusion and exclusion criteria. RA levels directly and linearly correlated with 90-day all-cause mortality. After controlling for ethnicity, gender, age, and other confounding variables in multivariate analysis, higher RA was significantly associated with an increased risk of 30-day, 90-day, and one-year all-cause mortality as opposed to the reduced levels of RA (tertile 3 vs. tertile 1: hazard ratios (HRs), 95% confidence intervals (CIs): 1.70, 1.43–2.01; 1.90, 1.64–2.19; and 1.95, 1.72–2.20, respectively). These results suggested that elevated levels of RA were linked to an elevated risk of 30-day, 90-day, and one-year all-cause death. There was a similar trend between RA and the use of RRT, length of stay in ICUs, sepsis, and septic shock. The subgroup analysis did not reveal any considerable interplay among strata. When areas under the curve were compared, RA was a weaker predictor than the SAPS II score but a stronger predictor than red blood cell distribution width (RDW) or albumin alone (
); RA combined with SAPS II has better predictive power than SAPS II alone (
). The Second Affiliated Hospital of Wenzhou Medical University cohort showed that CRP positively correlated with RA, with a coefficient of 0.2607 (
). Conclusions. RA was an independent prognostic predictor in critically ill older patients with AKI, and greater RA was linked to a higher probability of death. The risk of AKI is complicated when RRT occurs; sepsis and septic shock increase with RA levels.
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Affiliation(s)
- Lei Guo
- Department of Anesthesiology, Critical Care and Pain Medicine, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang, China
| | - Dezhun Chen
- Department of Anesthesiology, Critical Care and Pain Medicine, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang, China
| | - Bihuan Cheng
- Department of Anesthesiology, Critical Care and Pain Medicine, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang, China
| | - Yuqiang Gong
- Department of Anesthesiology, Critical Care and Pain Medicine, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang, China
| | - Benji Wang
- Department of Anesthesiology, Critical Care and Pain Medicine, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang, China
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Tunca O, Kazan S, Kazan ED. Can mean platelet volume predicts renal outcome in acute on chronic kidney disease? Ther Apher Dial 2023; 27:232-239. [PMID: 36165352 DOI: 10.1111/1744-9987.13935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/13/2022] [Accepted: 09/24/2022] [Indexed: 11/29/2022]
Abstract
INTRODUCTION This study aimed to investigate the role of mean platelet volume (MPV) in predicting renal outcome in acute kidney injury (AKI) developing on pre-existing chronic kidney disease (CKD). METHODS The patients whose first hemodialysis program was initiated in our center were divided into two groups as those who were taken to the scheduled dialysis program after discharge and those who were not dialysis-dependent. Groups were compared in terms of demographic characteristics, and laboratory parameters including MPV. RESULTS A total of 288 patients were included in the study (scheduled dialysis = 162 patients, nondialysis dependent = 126 patients). High MPV was found to be an independent risk factor for scheduled dialysis programs in multivariable analyses (OR [95% CI]: 90.9 [6.3-1313.6], p: 0.001). CONCLUSION CKD patients with high MPV were more likely to be included in scheduled dialysis programs after an AKI attack. MPV is found to be an independent risk factor and a reliable predictor for a scheduled dialysis program.
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Affiliation(s)
- Onur Tunca
- Department of Internal Medicine, Afyonkarahisar Health Science University, Faculty of Medicine, Division of Nephrology, Afyonkarahisar, Turkey
| | - Sinan Kazan
- Department of Internal Medicine, Afyonkarahisar Health Science University, Faculty of Medicine, Division of Nephrology, Afyonkarahisar, Turkey
| | - Elif Dizen Kazan
- Department of Internal Medicine, Afyonkarahisar Health Science University, Faculty of Medicine, Afyonkarahisar, Turkey
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Baek J, Kim S. Effects of Transfusion of Stored Red Blood Cells on Renal Ischemia-Reperfusion–Induced Hepatic Injury in Rats. Transplant Proc 2023; 55:629-636. [PMID: 37005156 DOI: 10.1016/j.transproceed.2023.02.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 01/26/2023] [Accepted: 02/24/2023] [Indexed: 04/03/2023]
Abstract
BACKGROUND Renal ischemia-reperfusion (IR) injures the liver as well as the kidneys. Transfusion of stored red blood cells (RBCs) triggers inflammatory responses, oxidative stress, and activation of innate immunity. In the present study, we investigated the effect of transfusion of stored RBCs on renal IR-induced hepatic injury. METHODS Sprague-Dawley rats were randomly divided into 3 groups based on the following treatments: rats subjected to sham operation (sham group), rats subjected to the induction of renal IR only (RIR group), and rats transfused with stored RBCs 1 hour after the start of reperfusion (RIR-TF group). Renal ischemia was induced for 1 hour, and reperfusion was allowed for 24 hours. After reperfusion, blood and liver tissue samples were obtained. RESULTS Serum levels of aspartate and alanine aminotransferase were increased in the RIR-TF group compared with those in the RIR and sham groups. The hepatic mRNA expression levels of heme oxygenase-1 and neutrophil gelatinase-associated lipocalin were increased in the RIR-TF group compared with those in the RIR and sham groups. The mRNA expression level of high mobility group box-1 was also increased in the RIR-TF group compared with that in the RIR group. CONCLUSION The transfusion of stored RBCs exacerbates renal IR-induced liver damage. Oxidative stress may be responsible for hepatic injury.
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XBP1 modulates endoplasmic reticulum and mitochondria crosstalk via regulating NLRP3 in renal ischemia/reperfusion injury. Cell Death Discov 2023; 9:69. [PMID: 36801911 PMCID: PMC9938143 DOI: 10.1038/s41420-023-01360-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 02/01/2023] [Accepted: 02/02/2023] [Indexed: 02/19/2023] Open
Abstract
The functional status of mitochondria and the endoplasmic reticulum are central to renal ischemia/reperfusion injury (IRI). X-box binding protein 1 (XBP1) is an important transcription factor in endoplasmic reticulum stress. NLR family pyrin domain containing-3 (NLRP3) inflammatory bodies are closely related to renal IRI. In vivo and in vitro, we examined the molecular mechanisms and functions of XBP1-NLRP3 signaling in renal IRI, which influences ER-mitochondrial crosstalk. In this study, mice were subjected to 45 min of unilateral renal warm ischemia, the other kidney resected, and reperfusion was performed for 24 h in vivo. In vitro, murine renal tubular epithelial cells (TCMK-1) were exposed to hypoxia for 24 h and reoxygenation for 2 h. Tissue or cell damage was evaluated by measuring blood urea nitrogen and creatinine levels, histological staining, flow cytometry, terminal deoxynucleotidyl transferase-mediated nick-end labeling, diethylene glycol staining, and transmission electron microscopy (TEM). Western blotting, immunofluorescence staining, and ELISA were used to analyze protein expression. Whether XBP1 regulates the NLRP3 promoter was evaluated using a luciferase reporter assay. Kidney damage was reduced with decreasing blood urea nitrogen, creatinine, interleukin-1β, and interleukin-18 levels. XBP1 deficiency reduced tissue damage and cell apoptosis, protecting the mitochondria. Disruption of XBP1 was associated with reduced NLRP3 and cleaved caspase-1 levels and markedly improved survival. In vitro in TCMK-1 cells, XBP1 interference inhibited caspase-1-dependent mitochondrial damage and reduced the production of mitochondrial reactive oxygen species. The luciferase assay showed that spliced XBP1 isoforms enhanced the activity of the NLRP3 promoter. These findings reveal that XBP1 downregulation suppresses the expression of NLRP3, a potential regulator of endoplasmic reticulum mitochondrial crosstalk in nephritic injury and a potential therapeutic target in XBP1-mediated aseptic nephritis.
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Deng J, Li L, Feng Y, Yang J. Comprehensive Management of Blood Pressure in Patients with Septic AKI. J Clin Med 2023; 12:jcm12031018. [PMID: 36769666 PMCID: PMC9917880 DOI: 10.3390/jcm12031018] [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: 11/27/2022] [Revised: 01/18/2023] [Accepted: 01/19/2023] [Indexed: 01/31/2023] Open
Abstract
Acute kidney injury (AKI) is one of the serious complications of sepsis in clinical practice, and is an important cause of prolonged hospitalization, death, increased medical costs, and a huge medical burden to society. The pathogenesis of AKI associated with sepsis is relatively complex and includes hemodynamic abnormalities due to inflammatory response, oxidative stress, and shock, which subsequently cause a decrease in renal perfusion pressure and eventually lead to ischemia and hypoxia in renal tissue. Active clinical correction of hypotension can effectively improve renal microcirculatory disorders and promote the recovery of renal function. Furthermore, it has been found that in patients with a previous history of hypertension, small changes in blood pressure may be even more deleterious for kidney function. Therefore, the management of blood pressure in patients with sepsis-related AKI will directly affect the short-term and long-term renal function prognosis. This review summarizes the pathophysiological mechanisms of microcirculatory disorders affecting renal function, fluid management, vasopressor, the clinical blood pressure target, and kidney replacement therapy to provide a reference for the clinical management of sepsis-related AKI, thereby promoting the recovery of renal function for the purpose of improving patient prognosis.
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Affiliation(s)
- Junhui Deng
- Department of Nephrology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing 400120, China
| | - Lina Li
- Department of Nephrology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing 400120, China
| | - Yuanjun Feng
- Department of Renal Rheumatology, Space Hospital Affiliated to Zunyi Medical University, Zunyi 563002, China
| | - Jurong Yang
- Department of Nephrology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing 400120, China
- Correspondence: or
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Pan JJ, Yang Y, Chen XQ, Shi J, Wang MZ, Tong ML, Zhou XG. RNA sequencing and bioinformatics analysis of circular RNAs in asphyxial newborns with acute kidney injury. Kaohsiung J Med Sci 2023; 39:337-344. [PMID: 36655871 DOI: 10.1002/kjm2.12644] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 12/06/2022] [Accepted: 12/07/2022] [Indexed: 01/20/2023] Open
Abstract
As one kind of novel noncoding RNA, circular RNAs (circRNAs) are involved in different biological processes. Although growing evidences have supported the important role of circRNAs in renal diseases, the mechanism remains unclear in neonatal acute kidney injury (AKI). High-throughput sequencing analysis was used to investigate the expression of circRNAs between hypoxia-induced AKI neonates and controls. Bioinformatics analysis was conducted to predict the function of differentially expressed circRNAs. Finally, the differentially expressed circRNAs were screened and determined by quantitative real-time PCR (qPCR). (1) A total of 296 differentially expressed circRNAs were identified (Fold change >2 and p < 0.05). Of them, 184 circRNAs were markedly upregulated, and 112 were significantly downregulated in the AKI group. (2) The pathway analysis showed that ubiquitin-mediated proteolysis, renal cell carcinoma, Jak-STAT, and HIF-1 signaling pathways participated in AKI. (3) Top five upregulated and five downregulated circRNAs with higher fold changes were selected for qPCR validation. Hsa_circ_0008898 (Fold Change = 5.48, p = 0.0376) and hsa_circ_0005519 (Fold Change = 4.65, p = 0.0071) were significantly upregulated, while hsa_circ_0132279 (Fold Change = -4.47, p = 0.0008), hsa_circ_0112327 (Fold Change = -4.26, p = 0.0048), and hsa_circ_0017647 (Fold Change = -4.15, p = 0.0313) were significantly downregulated in asphyxia-induced AKI group compared with the control group. This study could contribute to future research on neonatal AKI and facilitate the identification of novel therapeutic targets.
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Affiliation(s)
- Jing-Jing Pan
- Department of Neonatology, Children's Hospital of Nanjing Medical University, Nanjing, China
- Department of Neonatology, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Yang Yang
- Department of Neonatology, Children's Hospital of Nanjing Medical University, Nanjing, China
- Department of Child Healthcare, Nanjing Maternity and Child Health Care Hospital, Women's Hospital of Nanjing Medical University, Nanjing, China
| | - Xiao-Qing Chen
- Department of Neonatology, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Jia Shi
- Department of Neonatology, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Mu-Zi Wang
- Department of Neonatology, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Mei-Ling Tong
- Department of Child Healthcare, Nanjing Maternity and Child Health Care Hospital, Women's Hospital of Nanjing Medical University, Nanjing, China
| | - Xiao-Guang Zhou
- Department of Neonatology, Children's Hospital of Nanjing Medical University, Nanjing, China
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Zou Z, Chen B, Tang F, Li X, Xiao D. Predictive value of neutrophil gelatinase-associated lipocalin in children with acute kidney injury: A systematic review and meta-analysis. Front Pediatr 2023; 11:1147033. [PMID: 37051429 PMCID: PMC10083323 DOI: 10.3389/fped.2023.1147033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 03/13/2023] [Indexed: 04/14/2023] Open
Abstract
Purpose Neutrophil gelatin lipase carrier protein (NGAL) has been used as an early biomarker to predict acute kidney injury (AKI). However, the predictive value of NGAL in urine and blood in children with acute kidney injury in different backgrounds remains unclear. Therefore, we conducted this systematic review and meta-analysis to explore the clinical value of NGAL in predicting AKI in children. Methods Computerized databases were searched for relevant the studies published through August 4th, 2022, which included PUBMED, EMBASE, COCHRANE and Web of science. The risk of bias of the original included studies was assessed by using the Quality Assessment of Studies for Diagnostic Accuracy (QUADA-2). At the same time, subgroup analysis of these data was carried out. Results Fifty-three studies were included in this meta-analysis, involving 5,049 patients, 1,861 of whom were AKI patients. The sensitivity and specificity of blood NGAL for predicting AKI were 0.79 (95% CI: 0.69-0.86) and 0.85 (95% CI: 0.75-0.91), respectively, and SROC was 0.89 (95% CI: 0.86-0.91). The sensitivity and specificity of urine NGAL for predicting AKI were 0.83 (95% CI: 0.78-0.87) and 0.81 (95% CI: 0.77-0.85), respectively, and SROC was 0.89 (95% CI: 0.86-0.91). Meanwhile, the sensitivity and specificity of overall NGAL (urine and blood NGAL) for predicting AKI in children were 0.82 (95% CI: 0.77-0.86) and 0.82 (95% CI: 0.78-0.86), respectively, and SROC was 0.89 (95% CI: 0.86-0.91). Conclusion NGAL is a valuable predictor for AKI in children under different backgrounds. There is no significant difference in the prediction accuracy between urine NGAL and blood NGAL, and there is also no significant difference in different measurement methods of NGAL. Hence, NGAL is a non-invasive option in clinical practice. Based on the current evidence, the accuracy of NGAL measurement is the best at 2 h after cardiopulmonary bypass (CPB) and 24 h after birth in asphyxiated newborns. Systematic Review Registration https://www.crd.york.ac.uk/prospero/, identifier: CRD42022360157.
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Affiliation(s)
- Zhuan Zou
- Department of Emergency, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, China
| | - Bin Chen
- Department of Emergency, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, China
| | - Fajuan Tang
- Department of Emergency, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, China
| | - Xihong Li
- Department of Emergency, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, China
- Correspondence: Xihong Li Dongqiong Xiao
| | - Dongqiong Xiao
- Department of Emergency, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, China
- Correspondence: Xihong Li Dongqiong Xiao
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PIM1 attenuates renal ischemia-reperfusion injury by inhibiting ASK1-JNK/P38. Int Immunopharmacol 2023; 114:109563. [PMID: 36513021 DOI: 10.1016/j.intimp.2022.109563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/28/2022] [Accepted: 12/05/2022] [Indexed: 12/14/2022]
Abstract
Renal ischemia-reperfusion injury (IRI) is the main cause of acute kidney injury (AKI), yet therapeutic approaches to alleviate IRI remain limited. PIM1 (provirus integration site for Moloney murine leukemia virus 1) is a constitutive serine threonine kinase that phosphorylates various substrates to regulate cell death and survival. However, the role of PIM1 in renal IRI remains unclear. This study aims to investigate the effect of PIM1 on renal IRI and explore its downstream regulatory mechanism. In this study, we inhibited or overexpressed PIM1 in mice and cultured proximal tubular cells, and then induced renal IRI model in vivo and hypoxia reoxygenation (HR) model in vitro. Renal function, renal structure injuries and cellular death were assessed to reflect the extent of IRI. The expression of PIM1 and the levels of ASK1, MAPK and their phosphorylated forms were detected by immunoblot. RNA sequencing of kidney cortex was performed to analyze downstream pathway of PIM1 in renal IRI. The results showed that PIM1 expression was significantly upregulated in renal IRI mouse model and in renal tubular cell HR model. AZD1208 (a PIM1 inhibitor) aggravated renal IRI, while PIM1 overexpression ameliorated renal IRI. This was involved in the regulation of the ASK1-MAPK pathway. Moreover, results demonstrated that ASK1 was a downstream target of PIM1 by administering Selonsertib (an inhibitor of ASK1 activity), and inhibiting ASK1 alleviated cell death after HR in PIM1 knockdown cells by reducing JNK/P38 activation. In conclusion, this study elucidated the protective effect of PIM1 on renal IRI, and the underlying mechanism may be related to ASK1-JNK/P38 signaling pathway. Taken together, PIM1 may be a potential therapeutic target for renal IRI.
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Wang R, Shen S, Jian L, Liu S, Yuan Q, Guo H, Huang J, Chen P, Huang R. Regulation of the autophagy plays an important role in acute kidney injury induced acute lung injury. Ren Fail 2022; 44:1754-1768. [PMID: 36259464 PMCID: PMC9586646 DOI: 10.1080/0886022x.2022.2135446] [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] [Indexed: 10/31/2022] Open
Abstract
AIM This study aimed to investigate the regulatory role of autophagy in acute kidney injury (AKI) induced acute lung injury (ALI). METHODS The male Sprague-Dawley rats were divided into four groups: normal saline-treated sham rats (sham group), normal saline-treated ischemia-reperfusion injury rats (IRI group), 3-methyladenine-treated IRI rats (3-MA group), and rapamycin-treated IRI rats (RA group). The rats in the IRI rat model received the nephrectomy of the right kidney and was subjected to 60 mins of left renal pedicle occlusion, followed by 12, 24, 48, and 72 h of reperfusion. The levels of Scr, BUN, wet-to-dry ratio of lung, inflammatory cytokines, and oxidative stress were determined. The damage to tissues was detected by histological examinations. The western blot and immunohistochemistry methods were conducted to determine the expression of indicated proteins. RESULTS Renal IRI could induce the pulmonary injury after AKI, which caused significant increases in the function index of pulmonary and renal, the levels of inflammatory cytokines, and biomarkers of oxidative stress. In comparison to the IRI group, the RA group showed significantly decreased P62 and Caspase-3 expression and increased LC-II/LC3-I, Beclin-1, Bcl-2, and unc-51-like autophagy activating kinase 1 expression. Meanwhile, by suppressing the inflammation and oxidative stress, as well as inhibiting the pathological lesions in kidney and lung tissues, the autophagy could effectively ameliorate IRI-induced AKI and ALI. CONCLUSIONS Autophagy plays an important role in AKI-induced ALI, which could be used as a new target for AKI therapy and reduce the mortality caused by the complication.
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Affiliation(s)
- Ruolin Wang
- Nephropathy Department, Shenzhen Hospital (Futian) of Guangzhou University of Chinese Medicine, Shenzhen, China
| | - Siheng Shen
- Nephropathy Department, Shenzhen Hospital (Futian) of Guangzhou University of Chinese Medicine, Shenzhen, China
| | - Luyong Jian
- Nephropathy Department, Shenzhen Hospital (Futian) of Guangzhou University of Chinese Medicine, Shenzhen, China
| | - Shuhua Liu
- The Third Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Qi Yuan
- Nephropathy Department, Shenzhen Hospital (Futian) of Guangzhou University of Chinese Medicine, Shenzhen, China
| | - Huahui Guo
- Nephropathy Department, Shenzhen Hospital (Futian) of Guangzhou University of Chinese Medicine, Shenzhen, China
| | - Jiasheng Huang
- Nephropathy Department, Shenzhen Hospital (Futian) of Guangzhou University of Chinese Medicine, Shenzhen, China
| | - Penghui Chen
- Nephropathy Department, Shenzhen Hospital (Futian) of Guangzhou University of Chinese Medicine, Shenzhen, China
| | - Renfa Huang
- Nephropathy Department, Shenzhen Hospital (Futian) of Guangzhou University of Chinese Medicine, Shenzhen, China
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Pang Y, Li Y, Zhang Y, Wang H, Lang J, Han L, Liu H, Xiong X, Gu L, Wu X. Effects of inflammation and oxidative stress on postoperative delirium in cardiac surgery. Front Cardiovasc Med 2022; 9:1049600. [PMID: 36505383 PMCID: PMC9731159 DOI: 10.3389/fcvm.2022.1049600] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 11/07/2022] [Indexed: 11/23/2022] Open
Abstract
The past decade has witnessed unprecedented medical progress, which has translated into cardiac surgery being increasingly common and safe. However, complications such as postoperative delirium remain a major concern. Although the pathophysiological changes of delirium after cardiac surgery remain poorly understood, it is widely thought that inflammation and oxidative stress may be potential triggers of delirium. The development of delirium following cardiac surgery is associated with perioperative risk factors. Multiple interventions are being explored to prevent and treat delirium. Therefore, research on the potential role of biomarkers in delirium as well as identification of perioperative risk factors and pharmacological interventions are necessary to mitigate the development of delirium.
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Affiliation(s)
- Yi Pang
- Bengbu Medical College, Bengbu, Anhui, China
| | - Yuntao Li
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yonggang Zhang
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Hongfa Wang
- Center for Rehabilitation Medicine, Department of Anesthesiology, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Junhui Lang
- Center for Rehabilitation Medicine, Department of Anesthesiology, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Liang Han
- Center for Rehabilitation Medicine, Department of Anesthesiology, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - He Liu
- Department of Anesthesiology, The Affiliated Huzhou Hospital, Zhejiang University School of Medicine, Huzhou Central Hospital, Huzhou, China
| | - Xiaoxing Xiong
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Lijuan Gu
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, China
| | - Xiaomin Wu
- Center for Rehabilitation Medicine, Department of Anesthesiology, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China,*Correspondence: Xiaomin Wu,
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Piedrafita A, Siwy J, Klein J, Akkari A, Amaya-garrido A, Mebazaa A, Sanz AB, Breuil B, Montero Herrero L, Marcheix B, Depret F, Fernandez L, Tardif E, Minville V, Alves M, Metzger J, Grossac J, Mischak H, Ortiz A, Gazut S, Schanstra JP, Faguer S, Mayeur N, Casemayou A, Labaste F, Mayeur N, Casemayou A, Labaste F. A universal predictive and mechanistic urinary peptide signature in acute kidney injury. Crit Care 2022; 26:344. [PMID: 36345008 PMCID: PMC9640896 DOI: 10.1186/s13054-022-04193-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 10/07/2022] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND The delayed diagnosis of acute kidney injury (AKI) episodes and the lack of specificity of current single AKI biomarkers hamper its management. Urinary peptidome analysis may help to identify early molecular changes in AKI and grasp its complexity to identify potential targetable molecular pathways. METHODS In derivation and validation cohorts totalizing 1170 major cardiac bypass surgery patients and in an external cohort of 1569 intensive care unit (ICU) patients, a peptide-based score predictive of AKI (7-day KDIGO classification) was developed, validated, and compared to the reference biomarker urinary NGAL and NephroCheck and clinical scores. RESULTS A set of 204 urinary peptides derived from 48 proteins related to hemolysis, inflammation, immune cells trafficking, innate immunity, and cell growth and survival was identified and validated for the early discrimination (< 4 h) of patients according to their risk to develop AKI (OR 6.13 [3.96-9.59], p < 0.001) outperforming reference biomarkers (urinary NGAL and [IGFBP7].[TIMP2] product) and clinical scores. In an external cohort of 1569 ICU patients, performances of the signature were similar (OR 5.92 [4.73-7.45], p < 0.001), and it was also associated with the in-hospital mortality (OR 2.62 [2.05-3.38], p < 0.001). CONCLUSIONS An overarching AKI physiopathology-driven urinary peptide signature shows significant promise for identifying, at an early stage, patients who will progress to AKI and thus to develop tailored treatments for this frequent and life-threatening condition. Performance of the urine peptide signature is as high as or higher than that of single biomarkers but adds mechanistic information that may help to discriminate sub-phenotypes of AKI offering new therapeutic avenues.
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Affiliation(s)
- Alexis Piedrafita
- grid.411175.70000 0001 1457 2980Department of Nephrology and Organ Transplantation, University Hospital of Toulouse, and French Intensive Care Renal Network, 31000 Toulouse, France ,grid.7429.80000000121866389National Institute of Health and Medical Research (INSERM), UMR 1297, Institute of Cardiovascular and Metabolic Disease, 31000 Toulouse, France ,grid.15781.3a0000 0001 0723 035XUniversity Paul Sabatier, Toulouse-III, 31000 Toulouse, France
| | - Justyna Siwy
- grid.421873.bMosaiques Diagnostics GmbH, Hannover, Germany
| | - Julie Klein
- grid.7429.80000000121866389National Institute of Health and Medical Research (INSERM), UMR 1297, Institute of Cardiovascular and Metabolic Disease, 31000 Toulouse, France ,grid.15781.3a0000 0001 0723 035XUniversity Paul Sabatier, Toulouse-III, 31000 Toulouse, France
| | - Amal Akkari
- grid.457331.7Université Paris-Saclay, CEA, List, 91120 Palaiseau, France
| | - Ana Amaya-garrido
- grid.7429.80000000121866389National Institute of Health and Medical Research (INSERM), UMR 1297, Institute of Cardiovascular and Metabolic Disease, 31000 Toulouse, France
| | - Alexandre Mebazaa
- Department of Anesthesiology, Critical Care and Burn Unit, Hôpitaux Universitaires Saint Louis-Lariboisière, Assistance Publique-Hôpitaux de Paris, Université Paris Diderot-Paris 7, Sorbonne Paris Cité, UMR-S 942, INSERM, France, INI-CRCT, ParisNancy, France
| | - Anna Belen Sanz
- grid.5515.40000000119578126School of Medicine, IIS-Fundación Jiménez Díaz, Autonomous University of Madrid, FRIAT and REDINREN, Madrid, Spain
| | - Benjamin Breuil
- grid.7429.80000000121866389National Institute of Health and Medical Research (INSERM), UMR 1297, Institute of Cardiovascular and Metabolic Disease, 31000 Toulouse, France ,grid.15781.3a0000 0001 0723 035XUniversity Paul Sabatier, Toulouse-III, 31000 Toulouse, France
| | - Laura Montero Herrero
- grid.5515.40000000119578126School of Medicine, IIS-Fundación Jiménez Díaz, Autonomous University of Madrid, FRIAT and REDINREN, Madrid, Spain
| | - Bertrand Marcheix
- grid.15781.3a0000 0001 0723 035XUniversity Paul Sabatier, Toulouse-III, 31000 Toulouse, France ,grid.411175.70000 0001 1457 2980Department of Cardiac and Vascular Surgery, University Hospital of Toulouse, 31000 Toulouse, France
| | - François Depret
- Department of Anesthesiology, Critical Care and Burn Unit, Hôpitaux Universitaires Saint Louis-Lariboisière, Assistance Publique-Hôpitaux de Paris, Université Paris Diderot-Paris 7, Sorbonne Paris Cité, UMR-S 942, INSERM, France, INI-CRCT, ParisNancy, France
| | - Lucie Fernandez
- grid.7429.80000000121866389National Institute of Health and Medical Research (INSERM), UMR 1297, Institute of Cardiovascular and Metabolic Disease, 31000 Toulouse, France
| | - Elsa Tardif
- grid.411175.70000 0001 1457 2980Department of Anesthesiology and Critical Care Medicine, University Hospital of Toulouse, 31000 Toulouse, France
| | - Vincent Minville
- grid.15781.3a0000 0001 0723 035XUniversity Paul Sabatier, Toulouse-III, 31000 Toulouse, France ,grid.411175.70000 0001 1457 2980Department of Anesthesiology and Critical Care Medicine, University Hospital of Toulouse, 31000 Toulouse, France
| | - Melinda Alves
- grid.7429.80000000121866389National Institute of Health and Medical Research (INSERM), UMR 1297, Institute of Cardiovascular and Metabolic Disease, 31000 Toulouse, France
| | - Jochen Metzger
- grid.421873.bMosaiques Diagnostics GmbH, Hannover, Germany
| | | | - Julia Grossac
- grid.411175.70000 0001 1457 2980Department of Anesthesiology and Critical Care Medicine, University Hospital of Toulouse, 31000 Toulouse, France
| | - Harald Mischak
- grid.421873.bMosaiques Diagnostics GmbH, Hannover, Germany
| | - Alberto Ortiz
- grid.5515.40000000119578126School of Medicine, IIS-Fundación Jiménez Díaz, Autonomous University of Madrid, FRIAT and REDINREN, Madrid, Spain
| | - Stéphane Gazut
- grid.457331.7Université Paris-Saclay, CEA, List, 91120 Palaiseau, France
| | - Joost P. Schanstra
- grid.7429.80000000121866389National Institute of Health and Medical Research (INSERM), UMR 1297, Institute of Cardiovascular and Metabolic Disease, 31000 Toulouse, France ,grid.15781.3a0000 0001 0723 035XUniversity Paul Sabatier, Toulouse-III, 31000 Toulouse, France
| | - Stanislas Faguer
- grid.411175.70000 0001 1457 2980Department of Nephrology and Organ Transplantation, University Hospital of Toulouse, and French Intensive Care Renal Network, 31000 Toulouse, France ,grid.7429.80000000121866389National Institute of Health and Medical Research (INSERM), UMR 1297, Institute of Cardiovascular and Metabolic Disease, 31000 Toulouse, France ,grid.15781.3a0000 0001 0723 035XUniversity Paul Sabatier, Toulouse-III, 31000 Toulouse, France
| | - Nicolas Mayeur
- grid.411175.70000 0001 1457 2980Department of Anesthesiology and Critical Care Medicine, University Hospital of Toulouse, 31000 Toulouse, France
| | - Audrey Casemayou
- grid.7429.80000000121866389Institute for Metabolic and Cardiovascular Disease, National Institute of Health and Medical Research, Toulouse, France
| | - François Labaste
- grid.411175.70000 0001 1457 2980Department of Anesthesiology and Critical Care Medicine, University Hospital of Toulouse, 31000 Toulouse, France
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Vallorz EL, Janda J, Mansour HM, Schnellmann RG. Kidney targeting of formoterol containing polymeric nanoparticles improves recovery from ischemia reperfusion-induced acute kidney injury in mice. Kidney Int 2022; 102:1073-1089. [PMID: 35779607 DOI: 10.1016/j.kint.2022.05.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 04/22/2022] [Accepted: 05/20/2022] [Indexed: 12/14/2022]
Abstract
The β2 adrenergic receptor agonist, formoterol, is an inducer of mitochondrial biogenesis and restorer of mitochondrial and kidney function in acute and chronic models of kidney injury. Unfortunately, systemic administration of formoterol has the potential for adverse cardiovascular effects, increased heart rate, and decreased blood pressure. To minimize these effects, we developed biodegradable and biocompatible polymeric nanoparticles containing formoterol that target the kidney, thereby decreasing the effective dose, and lessen cardiovascular effects while restoring kidney function after injury. Male C57Bl/6 mice, treated with these nanoparticles daily, had reduced ischemia-reperfusion-induced serum creatinine and kidney cortex kidney injury molecule-1 levels by 78% and 73% respectively, compared to control mice six days after injury. With nanoparticle therapy, kidney cortical mitochondrial number and proteins reduced by ischemic injury, recovered to levels of sham-operated mice. Tubular necrosis was reduced 69% with nanoparticles treatment. Nanoparticles improved kidney recovery even when the dosing frequency was reduced from daily to two days per week. Finally, compared to treatment with formoterol-free drug alone, these nanoparticles did not increase heart rate nor decrease blood pressure. Thus, targeted kidney delivery of formoterol-containing nanoparticles is an improvement in standard formoterol therapy for ischemia-reperfusion-induced acute kidney injuries by decreasing the dose, dosing frequency, and cardiac side effects.
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Affiliation(s)
- Ernest L Vallorz
- Department of Pharmacology and Toxicology, The University of Arizona R. Ken Coit College of Pharmacy, Skaggs Pharmaceutical Sciences Center, Tucson, Arizona, USA
| | - Jaroslav Janda
- Department of Pharmacology and Toxicology, The University of Arizona R. Ken Coit College of Pharmacy, Skaggs Pharmaceutical Sciences Center, Tucson, Arizona, USA
| | - Heidi M Mansour
- Department of Pharmacology and Toxicology, The University of Arizona R. Ken Coit College of Pharmacy, Skaggs Pharmaceutical Sciences Center, Tucson, Arizona, USA; The University of Arizona College of Medicine, Tucson, Arizona, USA; The University of Arizona, BIO5 Institute, Tucson, Arizona, USA
| | - Rick G Schnellmann
- Department of Pharmacology and Toxicology, The University of Arizona R. Ken Coit College of Pharmacy, Skaggs Pharmaceutical Sciences Center, Tucson, Arizona, USA; The University of Arizona College of Medicine, Tucson, Arizona, USA; The University of Arizona, BIO5 Institute, Tucson, Arizona, USA; Southern Arizona VA Health Care System, USA.
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Mitochondria-Targeted Antioxidant Mitoquinone Maintains Mitochondrial Homeostasis through the Sirt3-Dependent Pathway to Mitigate Oxidative Damage Caused by Renal Ischemia/Reperfusion. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:2213503. [PMID: 36193071 PMCID: PMC9526615 DOI: 10.1155/2022/2213503] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 08/29/2022] [Accepted: 09/01/2022] [Indexed: 11/17/2022]
Abstract
Mitochondrial dysfunction is a critical factor contributing to oxidative stress and apoptosis in ischemia-reperfusion (I/R) diseases. Mitoquinone (MitoQ) is a mitochondria-targeted antioxidant whose potent anti-I/R injury capacity has been demonstrated in organs such as the heart and the intestine. In the present study, we explored the role of MitoQ in maintaining mitochondrial homeostasis and attenuating oxidative damage in renal I/R injury. We discovered that the decreased renal function and pathological damage caused by renal I/R injury were significantly ameliorated by MitoQ. MitoQ markedly reversed mitochondrial damage after I/R injury and inhibited renal reactive oxygen species production. In vitro, hypoxia/reoxygenation resulted in increased mitochondrial fission and decreased mitochondrial fusion in human renal tubular epithelial cells (HK-2), which were partially prevented by MitoQ. MitoQ treatment inhibited oxidative stress and reduced apoptosis in HK-2 cells by restoring mitochondrial membrane potential, promoting ATP production, and facilitating mitochondrial fusion. Deeply, renal I/R injury led to a decreased expression of sirtuin-3 (Sirt3), which was recovered by MitoQ. Moreover, the inhibition of Sirt3 partially eliminated the protective effect of MitoQ on mitochondria and increased oxidative damage. Overall, our data demonstrate a mitochondrial protective effect of MitoQ, which raises the possibility of MitoQ as a novel therapy for renal I/R.
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The effect of interval and continuous work on markers of acute kidney injury in a hot environment. Eur J Appl Physiol 2022; 122:2437-2450. [PMID: 35999474 DOI: 10.1007/s00421-022-05030-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 07/15/2022] [Indexed: 12/26/2022]
Abstract
PURPOSE To examine the effect of high-intensity interval work (HIIW) and moderate-intensity continuous work (MICW) on markers of acute kidney injury (AKI) and kidney function in a hot environment. METHODS Nine males completed 2 h of work (2 × 60 min with 10 min passive rest) in a hot environment (40 °C and 15% relative humidity) as either HIIW [2 min at 80% peak oxygen consumption (VO2peak) and 3 min at 30% VO2peak] or MICW (matched for total work of HIIW). Blood and urine samples were collected immediately before (Pre), after (Post), 1 h (1 h Post), and 24 h after (24 h Post) the trials. Urine flow rate (UFR), creatinine clearance, insulin-like growth factor binding protein 7 (IGFBP7), urinary neutrophil gelatinase-associated lipocalin (uNGAL), and urinary kidney injury marker 1 (uKIM-1) were measured to assess kidney function and injury. RESULTS Log IGFBP7 (p < 0.01), log uNGAL (p < 0.01), and log uKIM-1 (p = 0.01) all displayed a main effect for time after both HIIW and MICW. IGFBP7 (p = 0.01) and uKIM-1 (p < 0.01), corrected for Uosm, were higher after HIIW compared to MICW at Post, while IGFBP7 was also higher 1 h Post after HIIW compared to MICW (p = 0.02). UFR significantly decreasing from Pre to Post (p < 0.01) and 1 h Post (p < 0.01), but no main effect for condition (p = 0.53). CONCLUSION Both HIIW and MICW in a hot environment caused an increase in biomarkers of kidney injury (IGFBP7, KIM-1, and NGAL), but HIIW may have a greater impact on biomarkers related to AKI.
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Saeed ZM, Khattab MI, Khorshid NE, Salem AE. Ellagic acid and cilostazol ameliorate amikacin-induced nephrotoxicity in rats by downregulating oxidative stress, inflammation, and apoptosis. PLoS One 2022; 17:e0271591. [PMID: 35849599 PMCID: PMC9292089 DOI: 10.1371/journal.pone.0271591] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Accepted: 07/04/2022] [Indexed: 01/24/2023] Open
Abstract
Amikacin (AK) has the largest spectrum of aminoglycosides. However, its use is constrained because of nephrotoxicity and ototoxicity. Ellagic acid (EA) is a polyphenol present in plants. It has antioxidant, anticarcinogenic, and antimutagenic characteristics. Cilostazol (CTZ) is a phosphodiesterase Ш inhibitor, it is a potent vasodilator and antiplatelet drug. CTZ has an inhibitory effect on reactive oxygen species and superoxide generation in addition to hydroxyl radicals scavenging action. This study determines whether EA and cilostazol have a protective effect against AK-induced nephrotoxicity. Forty-nine rats were divided into seven equal groups: control normal; AK 400 mg/kg; EA 10 mg/kg; CTZ 10 mg/kg; AK 400 mg/kg plus EA 10 mg/kg; AK 400 mg/kg plus CTZ 10 mg/kg; AK 400 mg/kg plus EA 10 mg/kg and CTZ 10 mg/kg. For seven days, drugs were administered using gavage one hour before intramuscular injection of AK. Twenty-four hours after the last AK dosage, blood samples were collected to determine blood urea nitrogen and creatinine levels. Kidneys were removed for histopathological examination and measurement of: malondialdehyde (MDA), catalase (CAT), decreased glutathione (GSH), superoxide dismutase (SOD), interleukin 6 (IL6), tumor necrosis factor-alpha (TNFα), nuclear factor kappa B (NFκB), and Bcl-2 associated x protein (BAX). AK caused kidney damage, inflammatory mediator elevation, and oxidative stress and apoptotic markers. Rats receiving EA or CTZ indicated significant improvement in kidney function, decrease in oxidative stress and inflammation through NF-kB down-regulation and BAX expression. The combination of EA and CTZ showed a synergistic effect. In conclusion, EA and CTZ might play a beneficial role in preventing nephrotoxicity induced by AK partially by inhibition of tissue inflammation and apoptosis.
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Affiliation(s)
- Zeinab Mahmoud Saeed
- Clinical Pharmacology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
- * E-mail:
| | - Monira Ismail Khattab
- Clinical Pharmacology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Nadia Esmat Khorshid
- Clinical Pharmacology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Amal Elsayed Salem
- Clinical Pharmacology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
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Qin S, Wu B, Gong T, Zhang ZR, Fu Y. Targeted delivery via albumin corona nanocomplex to renal tubules to alleviate acute kidney injury. J Control Release 2022; 349:401-412. [PMID: 35835398 DOI: 10.1016/j.jconrel.2022.07.013] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 06/30/2022] [Accepted: 07/08/2022] [Indexed: 12/19/2022]
Abstract
Renal tubular epithelial cell (RTEC) is a critical target cell for the treatment of acute kidney injury (AKI). Despite various RTEC targeting strategies using ligand modified nanoparticles (NPs) following systemic administration, the nonspecific interaction between NPs and plasma proteins greatly weakens the targeting efficiency as well as the stability of NPs. Herein, celastrol (CLT) was entrapped in D-α-tocopherol polyethylene glycol 1000 succinate (TPGS) forming a CLT-loaded nanocomplex core (CT) with a high loading capacity of ~50%. Bovine serum albumin (BSA) was then adsorbed onto the CT surface to afford a complete albumin corona without obvious denaturation (CTB). CTB showed uniform particle size distribution and sufficient stability in vitro and in vivo. Besides clathrin-mediated and macropinocytosis pathways, CTB was actively internalized through megalin receptor-mediated endocytosis in HK-2 cells. Per biodistribution studies, CTB demonstrates enhanced renal tubule-specific distribution and targetability in mice compared to CT without albumin corona. Furthermore, pharmacodynamic studies in vivo further support that CTB effectively alleviated ischemia-reperfusion induced injuries without obvious systemic side effects in AKI mice models.
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Affiliation(s)
- Shuo Qin
- Key Laboratory of Drug Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China; Department of Pharmacy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Beibei Wu
- Key Laboratory of Drug Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Tao Gong
- Key Laboratory of Drug Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Zhi-Rong Zhang
- Key Laboratory of Drug Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Yao Fu
- Key Laboratory of Drug Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China.
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49
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Hess HW, Stooks JJ, Baker TB, Chapman CL, Johnson BD, Pryor RR, Basile DP, Monroe JC, Hostler D, Schlader ZJ. Kidney injury risk during prolonged exposure to current and projected wet bulb temperatures occurring during extreme heat events in healthy young men. J Appl Physiol (1985) 2022; 133:27-40. [PMID: 35616302 PMCID: PMC9236880 DOI: 10.1152/japplphysiol.00601.2021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 05/17/2022] [Accepted: 05/19/2022] [Indexed: 11/22/2022] Open
Abstract
Wet bulb temperatures (Twet) during extreme heat events are commonly 31°C. Recent predictions indicate that Twet will approach or exceed 34°C. Epidemiological data indicate that exposure to extreme heat events increases kidney injury risk. We tested the hypothesis that kidney injury risk is elevated to a greater extent during prolonged exposure to Twet = 34°C compared with Twet = 31°C. Fifteen healthy men rested for 8 h in Twet = 31 (0)°C and Twet = 34 (0)°C. Insulin-like growth factor-binding protein 7 (IGFBP7), tissue inhibitor of metalloproteinase 2 (TIMP-2), and thioredoxin 1 (TRX-1) were measured from urine samples. The primary outcome was the product of IGFBP7 and TIMP-2 ([IGFBP7·TIMP-2]), which provided an index of kidney injury risk. Plasma interleukin-17a (IL-17a) was also measured. Data are presented at preexposure and after 8 h of exposure and as mean (SD) change from preexposure. The increase in [IGFBP7·TIMP-2] was markedly greater at 8 h in the 34°C [+26.9 (27.1) (ng/mL)2/1,000) compared with the 31°C [+6.2 (6.5) (ng/mL)2/1,000] trial (P < 0.01). Urine TRX-1, a marker of renal oxidative stress, was higher at 8 h in the 34°C [+77.6 (47.5) ng/min] compared with the 31°C [+16.2 (25.1) ng/min] trial (P < 0.01). Plasma IL-17a, an inflammatory marker, was elevated at 8 h in the 34°C [+199.3 (90.0) fg/dL; P < 0.01] compared with the 31°C [+9.0 (95.7) fg/dL] trial. Kidney injury risk is exacerbated during prolonged resting exposures to Twet experienced during future extreme heat events (34°C) compared with that experienced currently (31°C), likely because of oxidative stress and inflammatory processes.NEW AND NOTEWORTHY We have demonstrated that kidney injury risk is increased when men are exposed over an 8-h period to a wet bulb temperature of 31°C and exacerbated at a wet bulb temperature of 34°C. Importantly, these heat stress conditions parallel those that are encountered during current (31°C) and future (34°C) extreme heat events. The kidney injury biomarker analyses indicate both the proximal and distal tubules as the locations of potential renal injury and that the injury is likely due to oxidative stress and inflammation.
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Affiliation(s)
- Hayden W Hess
- Department of Kinesiology, School of Public Health, Indiana University, Bloomington, Indiana
| | - Jocelyn J Stooks
- Center for Research and Education in Special Environments, Department of Exercise and Nutrition Sciences, University at Buffalo, Buffalo, New York
| | - Tyler B Baker
- Department of Kinesiology, School of Public Health, Indiana University, Bloomington, Indiana
| | | | - Blair D Johnson
- Department of Kinesiology, School of Public Health, Indiana University, Bloomington, Indiana
| | - Riana R Pryor
- Center for Research and Education in Special Environments, Department of Exercise and Nutrition Sciences, University at Buffalo, Buffalo, New York
| | - David P Basile
- School of Medicine, Indiana University, Indianapolis, Indiana
| | - Jacob C Monroe
- School of Medicine, Indiana University, Indianapolis, Indiana
| | - David Hostler
- Center for Research and Education in Special Environments, Department of Exercise and Nutrition Sciences, University at Buffalo, Buffalo, New York
| | - Zachary J Schlader
- Department of Kinesiology, School of Public Health, Indiana University, Bloomington, Indiana
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Domingo IK, Latif A, Bhavsar AP. Pro-Inflammatory Signalling PRRopels Cisplatin-Induced Toxicity. Int J Mol Sci 2022; 23:7227. [PMID: 35806229 PMCID: PMC9266867 DOI: 10.3390/ijms23137227] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/26/2022] [Accepted: 06/27/2022] [Indexed: 02/04/2023] Open
Abstract
Cisplatin is a platinum-based chemotherapeutic that has long since been effective against a variety of solid-cancers, substantially improving the five-year survival rates for cancer patients. Its use has also historically been limited by its adverse drug reactions, or cisplatin-induced toxicities (CITs). Of these reactions, cisplatin-induced nephrotoxicity (CIN), cisplatin-induced peripheral neuropathy (CIPN), and cisplatin-induced ototoxicity (CIO) are the three most common of several CITs recognised thus far. While the anti-cancer activity of cisplatin is well understood, the mechanisms driving its toxicities have only begun to be defined. Most of the literature pertains to damage caused by oxidative stress that occurs downstream of cisplatin treatment, but recent evidence suggests that the instigator of CIT development is inflammation. Cisplatin has been shown to induce pro-inflammatory signalling in CIN, CIPN, and CIO, all of which are associated with persisting markers of inflammation, particularly from the innate immune system. This review covered the hallmarks of inflammation common and distinct between different CITs, the role of innate immune components in development of CITs, as well as current treatments targeting pro-inflammatory signalling pathways to conserve the use of cisplatin in chemotherapy and improve long-term health outcomes of cancer patients.
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Affiliation(s)
| | | | - Amit P. Bhavsar
- Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB T6G 2E1, Canada; (I.K.D.); (A.L.)
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