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Wang L, Wang X. Diagnostic value of multi-parameter ultrasound evaluation in sepsis complicated by acute kidney injury. Ren Fail 2024; 46:2313861. [PMID: 38344995 PMCID: PMC10863507 DOI: 10.1080/0886022x.2024.2313861] [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: 08/10/2023] [Accepted: 01/30/2024] [Indexed: 02/15/2024] Open
Abstract
BACKGROUND This study aimed to discuss the diagnostic value of multi-parameter ultrasound evaluation in sepsis complicated with acute kidney injury (AKI). METHODS Patients were divided into an AKI group (n = 50) and a non-injury group (n = 50) based on the presence of AKI. The clinical characteristics were collected, and renal function parameters between the two groups were compared, including 24-h urine volume, serum creatinine, urea, serum cystatin C (CysC), renal parenchymal thickness (RPT), renal artery resistance index (RI), and multi-parameter ultrasound scoring (MPUS). Additionally, logistic regression analysis was conducted to determine the influencing factors of sepsis complicated with AKI. The prediction value was evaluated using a receiver operating characteristic (ROC) curve. RESULTS In the AKI group, creatinine, CysC, urea, MPUS score, RPT, and RI values were significantly higher, while the 24-h urine volume was lower than those in the non-injury group (p < 0.01). Moreover, multivariate logistic analysis indicated that high CysC and RI values were independent risk factors, whereas high 24-h urine volume and low MPUS were independent protective factors for sepsis-induced AKI. The ROC curve demonstrated that RI (AUC = 0.906) was more effective than 24-h urine volume (AUC = 0.797), CysC (AUC = 0.730), and MPUS (AUC = 0.794) in identifying sepsis-induced AKI. CONCLUSION High RI values increase the risk of sepsis-induced AKI, whereas low MPUS may reduce it. RI showed high diagnosis values for sepsis complicated with AKI.
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Affiliation(s)
- Liu Wang
- Department of Ultrasound Medicine, Sinopharm Dongfeng General Hospital, Hubei University of Medicine, Shiyan, China
| | - Xiang Wang
- Department of Critical Care Medicine, Sinopharm Dongfeng General Hospital, Hubei University of Medicine, Shiyan, China
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2
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Wu M, Huang Z, Akuetteh PDP, Huang Y, Pan J. Eriocitrin prevents Sepsis-induced acute kidney injury through anti-inflammation and anti-oxidation via modulating Nrf2/DRP1/OPA1 signaling pathway. Biochim Biophys Acta Gen Subj 2024; 1868:130628. [PMID: 38642815 DOI: 10.1016/j.bbagen.2024.130628] [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: 01/20/2024] [Revised: 04/11/2024] [Accepted: 04/17/2024] [Indexed: 04/22/2024]
Abstract
BACKGROUND Severe inflammation and oxidative stress are characteristics of sepsis-associated kidney injury with high morbidity and mortality. Eriocitrin (ERI) has shown promise in suppressing sepsis-associated kidney injury and LPS-induced periodontal disease, however, its efficacy in alleviating SAKI remains unexplored. This study aimed to investigate the therapeutic potential of ERI on SAKI through in vivo and in vitro experiments, elucidating its underlying mechanism. METHODS The therapeutic effects of ERI against SAKI were evaluated by survival rate, changes of serum creatinine (Scr) and blood urea nitrogen (BUN) and statistic of renal histological score in a Cecal ligation and puncture (CLP)-induced septic mice. Impactions about anti-coagulation, anti-inflammation, anti-oxidative stress and improvement of mitochondrial damage and mitochondrial morphology were further assayed. In vitro, HUVECs upon stimulation of LPS with or without different dosage of ERI, followed by evaluating changes in inflammation, mitochondrial dynamic equilibrium and signaling pathways. RESULTS ERI demonstrated ameliorative effects on SAKI by attenuating inflammation, oxidative stress and coagulation evidenced by the improved survival rate, alleviated kidney histological injury, declined BUN and Scr in serum and diminished levels of inflammation cytokines, and coagulation factors. Mechanistically, ERI suppressed DRP1-regulated mitochondrial fission and promoted OPA1-modulated mitochondrial fusion by activating Nrf2 in septic mice and LPS-stimulated HUVECs, which maintained mitochondrial dynamic equilibrium, improved mitochondrial morphology, assured integrity of mitochondrial function, decreased oxidative stress, impeded overwhelming inflammation, and thus, played a pivotal role in ERI's protection against SAKI. CONCLUSION Our data confirmed the therapeutic potential of ERI in mitigating SAKI,suggesting its viability as a pharmacological agent in clinic settings.
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Affiliation(s)
- Minmin Wu
- Zhejiang Key Laboratory of Intelligent Cancer Biomarker Discovery and Translation, First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, China; Key Laboratory of Intelligent Treatment and Life Support for Critical Diseases of Zhejiang Provincial, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Zhuang Huang
- Zhejiang Key Laboratory of Intelligent Cancer Biomarker Discovery and Translation, First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, China
| | - Percy David Papa Akuetteh
- College of Science and Technology, Wenzhou-Kean University, Wenzhou 325060, Zhejiang Province, China; Dorothy and George Hennings College of Science, Mathematics and Technology, Kean University, Union, NJ 07083, USA
| | - Yueyue Huang
- Department of Intensive Care Unit, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China; Key Laboratory of Intelligent Treatment and Life Support for Critical Diseases of Zhejiang Provincial, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China.
| | - Jingye Pan
- Department of Intensive Care Unit, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China; Key Laboratory of Intelligent Treatment and Life Support for Critical Diseases of Zhejiang Provincial, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China.
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3
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Rui Y, Zhang X, Min X, Xie H, Ma X, Geng F, Liu R. Unlocking renal Restoration: Mesaconine from Aconitum plants restore mitochondrial function to halt cell apoptosis in acute kidney injury. Int Immunopharmacol 2024; 133:112170. [PMID: 38691919 DOI: 10.1016/j.intimp.2024.112170] [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: 02/11/2024] [Revised: 04/09/2024] [Accepted: 04/27/2024] [Indexed: 05/03/2024]
Abstract
Acute kidney injury (AKI) is characterized by a sudden decline in renal function. Traditional Chinese medicine has employed Fuzi for kidney diseases; however, concerns about neurotoxicity and cardiotoxicity have constrained its clinical use. This study explored mesaconine, derived from processed Fuzi, as a promising low-toxicity alternative for AKI treatment. In this study, we assessed the protective effects of mesaconine in gentamicin (GM)-induced NRK-52E cells and AKI rat models in vitro and in vivo, respectively. Mesaconine promotes the proliferation of damaged NRK-52E cells and down-regulates intracellular transforming growth factor β1 (TGF-β1) and kidney injury molecule 1 (KIM-1) to promote renal cell repair. Concurrently, mesaconine restored mitochondrial morphology and permeability transition pores, reversed the decrease in mitochondrial membrane potential, mitigated mitochondrial dysfunction, decreased ATP production, inhibited inflammatory factor release, and reduced early apoptosis rates. In vivo, GM-induced AKI rat models exhibited elevated AKI biomarkers, in which mesaconine was effectively reduced, indicating improved renal function. Mesaconine enhanced superoxide dismutase activity, reduced malondialdehyde content, alleviated inflammatory infiltrate, mitigated tubular and glomerular lesions, and downregulated NF-κB (nuclear factor-κb) p65 expression, leading to decreased tumor necrosis factor-α (TNF-α) and IL-1β (interleukin-1β) levels in GM-induced AKI animals. Furthermore, mesaconine inhibited the expression of renal pro-apoptotic proteins (Bax, cytochrome c, cleaved-caspase 9, and cleaved-caspase 3) and induced the release of the anti-apoptotic protein bcl-2, further suppressing apoptosis. This study highlighted the therapeutic potential of mesaconine in GM-induced AKI. Its multifaceted mechanisms, including the restoration of mitochondrial dysfunction, anti-inflammatory and antioxidant effects, and apoptosis mitigation, make mesaconine a promising candidate for further exploration in AKI management.
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Affiliation(s)
- Yixin Rui
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China; Department of Pharmacology, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China
| | - Xiumeng Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China; Department of Pharmacology, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China
| | - Xinran Min
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China; Department of Pharmacology, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China
| | - Hongxiao Xie
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China; Department of Pharmacology, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China
| | - Xiuying Ma
- Sichuan Engineering Research Center for Medicinal Animals, Sichuan 611137, China
| | - Funeng Geng
- Sichuan Engineering Research Center for Medicinal Animals, Sichuan 611137, China; Guizhou Yunfeng Pharmaceutical, Guizhou 510000, China.
| | - Rong Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China; Department of Pharmacology, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China.
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Singh S. Antioxidant nanozymes as next-generation therapeutics to free radical-mediated inflammatory diseases: A comprehensive review. Int J Biol Macromol 2024; 260:129374. [PMID: 38242389 DOI: 10.1016/j.ijbiomac.2024.129374] [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: 09/12/2023] [Revised: 12/30/2023] [Accepted: 01/08/2024] [Indexed: 01/21/2024]
Abstract
Recent developments in exploring the biological enzyme mimicking properties in nanozymes have opened a separate avenue, which provides a suitable alternative to the natural antioxidants and enzymes. Due to high and tunable catalytic activity, low cost of synthesis, easy surface modification, and good biocompatibility, nanozymes have garnered significant research interest globally. Several inorganic nanomaterials have been investigated to exhibit catalytic activities of some of the key natural enzymes, including superoxide dismutase (SOD), catalase, glutathione peroxidase, peroxidase, and oxidase, etc. These nanozymes are used for diverse biomedical applications including therapeutics, imaging, and biosensing in various cells/tissues and animal models. In particular, inflammation-related diseases are closely associated with reactive oxygen and reactive nitrogen species, and therefore effective antioxidants could be excellent therapeutics due to their free radical scavenging ability. Although biological enzymes and other artificial antioxidants could perform well in scavenging the reactive oxygen and nitrogen species, however, suffer from several drawbacks such as the requirement of strict physiological conditions for enzymatic activity, limited stability in the environment beyond their optimum pH and temperature, and high cost of synthesis, purification, and storage make then unattractive for broad-spectrum applications. Therefore, this review systematically and comprehensively presents the free radical-mediated evolution of various inflammatory diseases (inflammatory bowel disease, mammary gland fibrosis, and inflammation, acute injury of the liver and kidney, mammary fibrosis, and cerebral ischemic stroke reperfusion) and their mitigation by various antioxidant nanozymes in the biological system. The mechanism of free radical scavenging by antioxidant nanozymes under in vitro and in vivo experimental models and catalytic efficiency comparison with corresponding natural enzymes has also been presented.
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Affiliation(s)
- Sanjay Singh
- National Institute of Animal Biotechnology (NIAB), Opposite Journalist Colony, Near Gowlidoddy, Extended Q-City Road, Gachibowli, Hyderabad 500032, Telangana, India.
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Bani Hamad D, Rababa M, Tanash MI, Abuali R. The Predictors of Perceived Barriers and Facilitators of Applying Sepsis Six Guidelines Among Critical Care Nurses. Cureus 2024; 16:e57355. [PMID: 38694411 PMCID: PMC11060988 DOI: 10.7759/cureus.57355] [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] [Accepted: 03/31/2024] [Indexed: 05/04/2024] Open
Abstract
BACKGROUND Sepsis is a life-threatening condition that demands quick and cautious interventions from nurses, as they are the frontline caregivers, so they are essential in recognizing early signs of sepsis, initiating prompt healthcare interventions, and providing comprehensive care to improve patient outcomes. This study aimed to examine the predictors of perceived barriers and facilitators of applying evidence-based sepsis guidelines among critical care nurses. METHODS This cross-sectional descriptive study was conducted on a convenience sample of 180 nurses working in critical care settings (ICU, critical care unit, ED, burning unit, dialysis unit) at a university hospital. A valid and reliable questionnaire was used to examine the predictors of perceived barriers and facilitators of applying evidence-based sepsis guidelines among critical care nurses. RESULTS This study revealed that the main barriers faced by critical care nurses are lack of sepsis recognition during observational rounds and delay in sepsis diagnosis by medical staff. For the most common facilitators of applying Sepsis Six guidelines, the participating nurses reported the presence of a written tool/protocol for sepsis identification and management. CONCLUSIONS The study emphasized the importance of the presence of evidence-based protocols for sepsis assessment and management and nurses' compliance with guidelines. Ongoing education training for nurses and providing step-by-step written checklists are a cornerstone to improving nurses' knowledge and the practical skills of early identification and management of sepsis.
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Affiliation(s)
- Dania Bani Hamad
- Department of Applied Sciences/Nursing, Al-Balqa Applied University, Al-Salt, JOR
| | - Mohammad Rababa
- Department of Adult Health Nursing, Jordan University of Science and Technology, Irbid, JOR
| | - Mu'ath I Tanash
- Department of Adult Health Nursing, The Hashemite University, Zarqa, JOR
| | - Raeda Abuali
- Department of Applied Sciences/Nursing, Al-Balqa Applied University, Al-Salt, JOR
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Zhou F, Liu D, Ye J, Li B. Circ_0006944 aggravates LPS-induced HK2 cell injury via modulating miR-205-5p/UBL4A pathway. Autoimmunity 2023; 56:2276066. [PMID: 37994026 DOI: 10.1080/08916934.2023.2276066] [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: 02/20/2023] [Accepted: 10/21/2023] [Indexed: 11/24/2023]
Abstract
Circular RNAs (circRNAs) has been manifested to be involved in the development of human diseases, including sepsis-associated acute kidney injury (SA-AKI). However, the function and mechanism of circ_0006944 in SA-AKI has not been validated. Lipopolysaccharide (LPS) was utilised to induce AKI cell model. Levels of genes and proteins were monitored by quantitative real-time polymerase chain reaction (qRT-PCR) and western blot. Cell counting kit 8 assay, EdU assay and flow cytometry were exploited to estimate cell proliferation and apoptosis. The concentrations of inflammation factors were measured via using ELISA assay. The levels of MDA and SOD were tested by the corresponding kits. The relationship between miR-205-5p and circ_0006944 or UBL4A was verified by dual-luciferase reporter assay and RIP assay. Circ_0006944 was overexpressed in SA-AKI patients, and interference of circ_0006944 restrained LPS-stimulated HK2 cell proliferation repression, apoptosis, inflammation and oxidative stress. Mechanistically, circ_0006944 could sponge miR-205-5p, and miR-205-5p interference counteracted circ_0006944 inhibition-mediated impact on the biological functions in LPS-induced HK2 cell. Additionally, UBL4A was targeted by miR-205-5p, and UBL4A overexpression also partially abolished the repressive impacts of miR-205-5p on LPS-triggered HK2 cell damage. Importantly, circ_0006944 sponged miR-205-5p to mediate the expression of UBL4A. Our outcomes identified that circ_0006944 exacerbated SA-AKI development via miR-205-5p/UBL4A axis, which might be a potential treatment and diagnosis biomarker for SA-AKI.
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Affiliation(s)
- Fan Zhou
- Department of Infectious Diseases, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Edong Healthcare Group, Hubei, China
- Hubei Key Laboratory of Kidney Disease Pathogenesis and Intervention, Hubei, China
| | - Dong Liu
- Hubei Key Laboratory of Kidney Disease Pathogenesis and Intervention, Hubei, China
- Department of Intensive Care Unit, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Edong Healthcare Group, Hubei, China
| | - Junwei Ye
- Hubei Key Laboratory of Kidney Disease Pathogenesis and Intervention, Hubei, China
- Department of Intensive Care Unit, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Edong Healthcare Group, Hubei, China
| | - Bingqi Li
- Hubei Key Laboratory of Kidney Disease Pathogenesis and Intervention, Hubei, China
- Department of Intensive Care Unit, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Edong Healthcare Group, Hubei, China
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Song R, He S, Wu Y, Tan S. Pyroptosis in sepsis induced organ dysfunction. Curr Res Transl Med 2023; 72:103419. [PMID: 38246070 DOI: 10.1016/j.retram.2023.103419] [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: 04/17/2023] [Revised: 09/27/2023] [Accepted: 10/05/2023] [Indexed: 01/23/2024]
Abstract
As an uncontrolled inflammatory response to infection, sepsis and sepsis induced organ dysfunction are great threats to the lives of septic patients. Unfortunately, the pathogenesis of sepsis is complex and multifactorial, which still needs to be elucidated. Pyroptosis is a newly discovered atypical form of inflammatory programmed cell death, which depends on the Caspase-1 dependent classical pathway or the non-classical Caspase-11 (mouse) or Caspase-4/5 (human) dependent pathway. Many studies have shown that pyroptosis is related to sepsis. The Gasdermin proteins are the key molecules in the membrane pores formation in pyroptosis. After cut by inflammatory caspase, the Gasdermin N-terminal fragments with perforation activity are released to cause pyroptosis. Pyroptosis is closely related to the occurrence and development of sepsis induced organ dysfunction. In this review, we summarized the molecular mechanism of pyroptosis, the key role of pyroptosis in sepsis and sepsis induced organ dysfunction, with the aim to bring new diagnostic biomarkers and potential therapeutic targets to improve sepsis clinical treatments.
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Affiliation(s)
- Ruoyu Song
- Department of Pathophysiology, School of Basic Medicine Science, Central South University, Changsha, China; Sepsis Translational Medicine Key Laboratory of Hunan Province, Central South University, Changsha, China; National Medicine Functional Experimental Teaching Center, Central South University, Changsha, China.
| | - Shijun He
- Department of Pathophysiology, School of Basic Medicine Science, Central South University, Changsha, China; Sepsis Translational Medicine Key Laboratory of Hunan Province, Central South University, Changsha, China; National Medicine Functional Experimental Teaching Center, Central South University, Changsha, China
| | - Yongbin Wu
- Department of Pathophysiology, School of Basic Medicine Science, Central South University, Changsha, China; Sepsis Translational Medicine Key Laboratory of Hunan Province, Central South University, Changsha, China; National Medicine Functional Experimental Teaching Center, Central South University, Changsha, China
| | - Sipin Tan
- Department of Pathophysiology, School of Basic Medicine Science, Central South University, Changsha, China; Sepsis Translational Medicine Key Laboratory of Hunan Province, Central South University, Changsha, China; National Medicine Functional Experimental Teaching Center, Central South University, Changsha, China.
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8
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Liu Y, Fang Q, Ming T, Zuo J, Jing G, Song X. Knockout of Erbin promotes pyroptosis via regulating NLRP3/caspase-1/Gasdermin D pathway in sepsis-induced acute kidney injury. Clin Exp Nephrol 2023; 27:781-790. [PMID: 37310569 DOI: 10.1007/s10157-023-02364-8] [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: 09/19/2022] [Accepted: 05/28/2023] [Indexed: 06/14/2023]
Abstract
BACKGROUND This study aims to investigate the correlation between Erbin and sepsis, and the role of Erbin on the pyroptosis pathway in acute kidney injury caused by sepsis and NLRP3/caspase-1/Gasdermin D pathway. METHODS In the study, lipopolysaccharide (LPS) treatment or cecal ligation and puncture (CLP) surgery on mice were used to stimulate the in vitro and in vivo sepsis-induced renal injury model. The male C57BL/6 of wild-type mice (WT) and Erbin-knockout mice (Erbin-/-, EKO) were randomly divided into four groups (WT + Sham, WT + CLP, EKO + Sham, EKO + CLP). Inflammatory cytokine, renal function, pyroptotic cell numbers and the levels of protein and mRNA expression of pyroptosis, including the NLRP3 (all P < 0.05), were analyzed and found increase in Erbin-/- mice with CLP and LPS-induced HK-2 cells. RESULTS The inhibited of Erbin shows a renal damaged effect by promoting NLRP3 inflammasome-mediated pyroptosis in SI-AKI. CONCLUSION This study demonstrated a novel mechanism by which Erbin regulates NLRP3 inflammasome-mediated pyroptosis in SI-AKI.
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Affiliation(s)
- Yuping Liu
- The Department of Research Centre of Anesthesiology and Critical Care Medicine Anesthesiology, Zhongnan Hospital of Wuhan University, Wuchang, Wuhan, 430071, Hubei Province, China
- Department of Anesthesiology, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Qing Fang
- The Department of Research Centre of Anesthesiology and Critical Care Medicine Anesthesiology, Zhongnan Hospital of Wuhan University, Wuchang, Wuhan, 430071, Hubei Province, China
| | - Tingqian Ming
- Department of Anesthesiology, Nanfang Hospital of Southern Medical University, Guangzhou, China
| | - Jing Zuo
- The Department of Research Centre of Anesthesiology and Critical Care Medicine Anesthesiology, Zhongnan Hospital of Wuhan University, Wuchang, Wuhan, 430071, Hubei Province, China
| | - Guoqing Jing
- The Department of Research Centre of Anesthesiology and Critical Care Medicine Anesthesiology, Zhongnan Hospital of Wuhan University, Wuchang, Wuhan, 430071, Hubei Province, China
| | - Xuemin Song
- The Department of Research Centre of Anesthesiology and Critical Care Medicine Anesthesiology, Zhongnan Hospital of Wuhan University, Wuchang, Wuhan, 430071, Hubei Province, China.
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Liu W, Hu C, Zhang B, Li M, Deng F, Zhao S. Exosomal microRNA-342-5p secreted from adipose-derived mesenchymal stem cells mitigates acute kidney injury in sepsis mice by inhibiting TLR9. Biol Proced Online 2023; 25:10. [PMID: 37085762 PMCID: PMC10120132 DOI: 10.1186/s12575-023-00198-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 04/11/2023] [Indexed: 04/23/2023] Open
Abstract
BACKGROUND Sepsis-related acute kidney injury (AKI) is an inflammatory disease associated with extremely high mortality and health burden. This study explored the possibility of exosomes secreted by adipose-derived mesenchymal stem cells (AMSCs) serving as a carrier for microRNA (miR)-342-5p to alleviate sepsis-related AKI and investigated the possible mechanism. METHODS Serum was obtained from 30 patients with sepsis-associated AKI and 30 healthy volunteers for the measurement of miR-342-5p, blood urea nitrogen (BUN), and serum creatinine (SCr) levels. For in vitro experiments, AMSCs were transfected with LV-miR-342-5p or LV-miR-67 to acquire miR-342-5p-modified AMSCs and miR-67-modified AMSCs, from which the exosomes (AMSC-Exo-342 and AMSC-Exo-67) were isolated. The human renal proximal tubular epithelial cell line HK-2 was induced by lipopolysaccharide (LPS) to construct a cellular model of sepsis. The expression of Toll-like receptor 9 (TLR9) was also detected in AKI cells and mouse models. The interaction between miR-342-5p and TLR9 was predicted by dual luciferase reporter gene assay. RESULTS Detection on clinical serum samples showed that BUN, SCr, and TLR9 were elevated and miR-342-5p level was suppressed in the serum of patients with sepsis-associated AKI. Transfection with LV-miR-342-5p reinforced miR-342-5p expression in AMSCs and AMSC-secreted exosomes. miR-342-5p negatively targeted TLR9. LPS treatment enhanced TLR9 expression, reduced miR-342-5p levels, suppressed autophagy, and increased inflammation in HK-2 cells, while the opposite trends were observed in LPS-induced HK-2 cells exposed to AMSC-Exo-342, Rapa, miR-342-5p mimic, or si-TLR9. Additionally, the effects of AMSC-Exo-342 on autophagy and inflammation in LPS-induced cells could be weakened by 3-MA or pcDNA3.1-TLR9 treatment. Injection of AMSC-Exo-342 enhanced autophagy, mitigated kidney injury, suppressed inflammation, and reduced BUN and SCr levels in sepsis-related AKI mouse models. CONCLUSION miR-342-5p transferred by exosomes from miR-342-5p-modified AMSCs ameliorated AKI by inhibiting TLR9 to accelerate autophagy.
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Affiliation(s)
- Wei Liu
- Department of Critical Care Medicine, Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
- Hunan Provincial Clinical Research Center for Critical Care Medicine, Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
| | - Chenghuan Hu
- Department of Critical Care Medicine, Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
- Hunan Provincial Clinical Research Center for Critical Care Medicine, Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
| | - Buyao Zhang
- Department of Critical Care Medicine, Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
| | - Mingxia Li
- Department of Critical Care Medicine, Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
| | - Fuxing Deng
- Department of Critical Care Medicine, Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
| | - Shuangping Zhao
- Department of Critical Care Medicine, Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China.
- Hunan Provincial Clinical Research Center for Critical Care Medicine, Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China.
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10
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Cardoso RDR, Chambo SD, Zaninelli TH, Bianchini BHS, da Silva MDV, Bertozzi MM, Saraiva-Santos T, Franciosi A, Martelossi-Cebinelli G, Garcia-Miguel PE, Borghi SM, Casagrande R, Verri WA. Resolvin D5 (RvD5) Reduces Renal Damage Caused by LPS Endotoxemia in Female Mice. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010121. [PMID: 36615318 PMCID: PMC9821966 DOI: 10.3390/molecules28010121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 12/18/2022] [Accepted: 12/19/2022] [Indexed: 12/29/2022]
Abstract
In self-revolving gram-negative Escherichia coli infection, Resolvin D5 (RvD5) was found to enhance bacteria phagocytosis and reduce the production of inflammatory mediators, contributing to the resolution of infection. LPS (lipopolysaccharide) is a gram-negative bacterial structure product which activates the immune system and, at high doses, leads to endotoxemia. To our knowledge, the effect of RvD5 against LPS endotoxemia has not been investigated to date. Female Swiss mice received an i.p. treatment with RvD5 (0.1, 1 or 10 ng/animal). After 1 h, they were stimulated with LPS (10 mg/kg, i.v.), and samples were collected after additional 6 h. The resulting data demonstrated that RvD5 protected the kidneys (urea and creatinine serum levels) from tissue injury. These effects were related to an improvement in histopathological parameters and a reduction of enzymatic markers of leukocyte infiltration, pro-inflammatory cytokine (IL-1β, TNF-α, and IL-6) production, and oxidative stress. Antioxidant markers were also increased by RvD5, but IL-10 (an anti-inflammatory cytokine) levels were unaltered. We also observed that RvD5 reduced the infiltration of CD45+ hematopoietic cells into the kidneys, reduced the activation of NFκB and promoted the Nrf2 pathway by reducing Keap-1 levels. Our data indicate that RvD5 may be a therapeutic possibility to reduce kidney lesions in LPS endotoxemia.
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Affiliation(s)
- Renato D. R. Cardoso
- Laboratory of Pain, Inflammation, Neuropathy and Cancer, Department of Pathology, Centre of Biological Sciences, Londrina State University, Londrina 86057-970, Brazil
| | - Sandmary D. Chambo
- Laboratory of Pain, Inflammation, Neuropathy and Cancer, Department of Pathology, Centre of Biological Sciences, Londrina State University, Londrina 86057-970, Brazil
| | - Tiago H. Zaninelli
- Laboratory of Pain, Inflammation, Neuropathy and Cancer, Department of Pathology, Centre of Biological Sciences, Londrina State University, Londrina 86057-970, Brazil
| | - Beatriz H. S. Bianchini
- Laboratory of Pain, Inflammation, Neuropathy and Cancer, Department of Pathology, Centre of Biological Sciences, Londrina State University, Londrina 86057-970, Brazil
| | - Matheus Deroco Veloso da Silva
- Laboratory of Pain, Inflammation, Neuropathy and Cancer, Department of Pathology, Centre of Biological Sciences, Londrina State University, Londrina 86057-970, Brazil
| | - Mariana M. Bertozzi
- Laboratory of Pain, Inflammation, Neuropathy and Cancer, Department of Pathology, Centre of Biological Sciences, Londrina State University, Londrina 86057-970, Brazil
| | - Telma Saraiva-Santos
- Laboratory of Pain, Inflammation, Neuropathy and Cancer, Department of Pathology, Centre of Biological Sciences, Londrina State University, Londrina 86057-970, Brazil
| | - Anelise Franciosi
- Laboratory of Pain, Inflammation, Neuropathy and Cancer, Department of Pathology, Centre of Biological Sciences, Londrina State University, Londrina 86057-970, Brazil
| | - Geovana Martelossi-Cebinelli
- Laboratory of Pain, Inflammation, Neuropathy and Cancer, Department of Pathology, Centre of Biological Sciences, Londrina State University, Londrina 86057-970, Brazil
| | - Pamela E. Garcia-Miguel
- Laboratory of Pain, Inflammation, Neuropathy and Cancer, Department of Pathology, Centre of Biological Sciences, Londrina State University, Londrina 86057-970, Brazil
| | - Sergio M. Borghi
- Laboratory of Pain, Inflammation, Neuropathy and Cancer, Department of Pathology, Centre of Biological Sciences, Londrina State University, Londrina 86057-970, Brazil
| | - Rubia Casagrande
- Department of Pharmaceutical Sciences, Centre of Health Science, Londrina State University, Londrina 86039-440, Brazil
| | - Waldiceu A. Verri
- Laboratory of Pain, Inflammation, Neuropathy and Cancer, Department of Pathology, Centre of Biological Sciences, Londrina State University, Londrina 86057-970, Brazil
- Correspondence: ; Tel.: +55-43-3371-4979
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Hou J, Fan JM. KCNQ1OT1 Influences HK-2 Apoptosis and Inflammation in LPS-Induced Acute Renal Injury via Modulating miR-30a-5p/NLRP3 Axis. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2022; 2022:2789900. [PMID: 36523420 PMCID: PMC9747322 DOI: 10.1155/2022/2789900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 06/22/2022] [Accepted: 07/08/2022] [Indexed: 07/29/2023]
Abstract
Objective To investigate the influence of KCNQ1OT1 on HK-2 apoptosis and inflammation in ARI and its molecular mechanism. Methods Normal cultivated HK-2 cells were used as negative control (NC) group. Three different concentrations of lipopolysaccharide (LPS) were used to treat the cells (5 μg/mL, 10 μg/mL, and 20 μg/mL). The groups included si-KCN1OT1+ LPS, si-NC + LPS, miR-30a-5p + LPS, pcDNA-NLRP3+si-KCNQ1OT1 + LPS group, miR-NC + LPS group, and pcDNA + si-KCNQ1OT1 + LPS group. CCK-8 and flow cytometry are used to measure cell viability and apoptosis, while RT-qPCR and Western blotting are used to detect KCNQ1OT1, miR-30a-5p, and NLRP3 mRNA. ELISA was used to detect the levels of TNF-α, IL-6, and IL-1β in HK-2 cells. The targeting relationship among KCNQ1OT1, miR-30a-5p, and NLRP3 was verified. Results After the intervention of LPS, the viability of HK-2 cells was decreased, while the apoptosis rates were increased. The mRNA and protein expressions of NLRP3 and KCNQ1OT1 were increased, while the mRNA and protein levels of miR-30a-5p were decreased (P < 0.05). The expressions of Bax and Cleaved-caspase-3 were downregulated after silencing KCNQ1OT1 and overexpressed miR-30a-5p. In addition, the viability of HK-2 cells was improved, and the apoptosis was reduced by inhibiting KCNQ1OT1 and overexpressed miR-30a-5p. Thus, KCNQ1OT1 modulated NLRP3 via targeting miR-30a-5p. Overexpression of NLRP3 reverses KCNQ1OT1 inhibition of LPS-induced apoptosis, activity, and inflammation in HK-2 cells. Conclusions Through modulating the miR-30a-5p/NLRP3 axis, inhibition of KCNQ1OT1 may reduce HK-2 apoptosis and inflammation in LPS-induced ARI.
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Affiliation(s)
- Jing Hou
- Department of Geriatrics, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Jun-Ming Fan
- Department of Geriatrics, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Chengdu Medical College Southwest Medical University, Chengdu, China
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Intracellular infection-responsive release of NO and peptides for synergistic bacterial eradication. J Control Release 2022; 352:87-97. [PMID: 36243236 DOI: 10.1016/j.jconrel.2022.10.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 09/14/2022] [Accepted: 10/07/2022] [Indexed: 11/06/2022]
Abstract
Bacteria have the ability to invade and survive in host cells to form intracellular bacteria (ICBs), and challenges remain in the intracellular delivery of sufficient antibiotics to remove ICBs. Herein, antimicrobial peptide of epsilon-poly-l-lysine (ePL) and nitric oxide (NO) donors are integrated into nanoparticles (NPs) for ICB treatment without using any antibiotics. ePL was grafted with dodecyl alcohol through ethyl dichlorophosphate to prepare ePL-C12, followed by conjugation of nitrate-functionalized NO donors to obtain ePL-C12NO. PNO/C NPs were prepared from mixtures of ePL-C12NO and ePL-C12 and the optimal ePL-C12NO ratio was 7% in terms of bactericidal effect and macrophage toxicity. Once being engulfed by bacteria-infected macrophages (BIMs), NPs are disintegrated when encountering with ICB-secreted phosphatase, and the NP degradation accelerates intracellular NO release in response to the elevated glutathione levels in BIMs. The selective and abrupt release of NO and ePL with different antimicrobial mechanisms exhibits synergistic eradication of ICBs and no apparent toxicity to macrophages. ICB-infected mice show persistent weight loss and 100% of mortality rate after treatment with ePL-C12 NPs for 7 days, while PNO/C treatment causes entire survival of infected mice and full recovery of body weights to normal values. ICB-infected mice are also accompanied with apparent hepatomegaly and splenomegaly, which are only eliminated by PNO/C treatment without associated any pathological abnormality. PNO/C treatment reduces bacterial burdens in livers (2.45 log), spleens (2.16 log) and kidneys (3.46 log) and restores hepatic and renal function to normal levels. Thus, this study provides a feasible strategy to selectively release NO and cationic peptides in response to intracellular infection-derived signals, achieving synergistic eradication of ICBs and function restoration of the main tissues.
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Rababa M, Bani-Hamad D, Hayajneh AA, Al Mugheed K. Nurses’ knowledge, attitudes, practice, and decision-making skills related to sepsis assessment and management. ELECTRONIC JOURNAL OF GENERAL MEDICINE 2022. [DOI: 10.29333/ejgm/12556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
<b>Objectives</b>: The present study examines the critical care nurse’s knowledge, attitudes, practice (KAP), and decision-making related to early assessment and management of sepsis.<br />
<b>Methods</b>: This cross-sectional descriptive study utilized a convenience sample of 70 nurses working in a college hospital in the northern region of Jordan. Data were gathered employing a sepsis vignette and valid questionnaires via Google document. The nursing decision-making instrument and the knowledge, attitudes, and practice survey were utilized to assess nurses’ decision-making skills, knowledge, attitudes, and practice, respectively. Nurses’ sociodemographic/professional data, including gender, marital status, experience, education, and work environment, were also measured.<br />
<b>Result</b>: The participating nurses reported poor KAP, and analytical decision-making skills related to sepsis management. Experienced nurses and those with a master’s degree reported significantly better KAP, and intuitive decision-making skills than naïve and those with a bachelor’s degree. Nurses with analytical decision-making modes reported higher levels of knowledge, attitudes, and practice than nurses with intuitive or flexible analytical-intuitive decision-making modes.<br />
<b>Conclusion</b>: Poor decision-making skills, as well as knowledge, attitudes, and practice related to sepsis assessment and management, is a substantial problem that demands a productive re-evaluation of the current sepsis management practices. Boosting the knowledge and improving the practices on sepsis assessment and management through comprehensive educational programs and campaigns are necessary to improve nurses’ decision-making skills.
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Affiliation(s)
- Mohammad Rababa
- Department of Adult Health Nursing Faculty of Nursing, Jordan University of Science and Technology, Irbid, JORDAN
| | - Dania Bani-Hamad
- Department of Adult Health Nursing Faculty of Nursing, Jordan University of Science and Technology, Irbid, JORDAN
| | - Audai A Hayajneh
- Department of Adult Health Nursing Faculty of Nursing, Jordan University of Science and Technology, Irbid, JORDAN
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Silencing circ_0074371 inhibits the progression of sepsis-induced acute kidney injury by regulating miR-330-5p/ELK1 axis. Mamm Genome 2022; 33:642-653. [PMID: 35994105 DOI: 10.1007/s00335-022-09961-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 07/09/2022] [Indexed: 10/15/2022]
Abstract
BACKGROUND Sepsis-induced acute kidney injury (AKI) is a common in clinic. Circular RNAs (circRNAs) play significant roles in ameliorating AKI. The purpose of this study was aimed to identify the role of circ_0074371 and the potential action mechanism in sepsis-induced AKI. METHODS AKI patients and healthy individual serum samples were collected and the relative expression of circ_0074371 was measured by real-time polymerase chain reaction (RT-PCR). HK2 cells were treated with different dose (0, 2.5, 5 and 10 μg/ml) lipopolysaccharide (LPS) to establish the AKI cell model. The cell viability and apoptosis of HK2 cells were detected using cell counting kit-8 (CCK-8) and flow cytometry, respectively. The contents of malondialdehyde (MDA), and superoxide dismutase (SOD) were evaluated using the relative commercial kits. The IL-1β and TNF-α levels in cell culture supernatants were measured by ELISA. The interaction relationship between miR-330-5p and circ_0074371 or ELK1 was predicted by Targetscan database and further confirmed by the dual-luciferase reporter assay system. RESULTS The circ_0074371 expression was up-regulated in sepsis patients and LPS-induced HK2 cells. Silencing circ_0074371 promoted HK2 cells viability and inhibited the HK2 cells apoptosis. miR-330-5p inhibitor weakened circ_0074371 inhibitor-induced cell viability, apoptosis and oxidative stress. Further mechanism analysis showed that circ_0074371 acted as a sponge for miR-330-5p to increase ELK1 expression level. Importantly, miR-330-5p downregulation or ELK1 upregulation reversed the action of circ_0074371 knockdown on LPS-induced HK2 cells. CONCLUSION Knockdown of circ_0074371 ameliorated LPS-induced HK2 cells apoptosis, inflammation and oxidative stress via regulating miR-330-5p/ELK1, opening a new window into the pathogenesis AKI.
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15
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Lin T, Lu C, Chang K, Lee C. Juniperus communis
extract ameliorates
lipopolysaccharide‐induced
acute kidney injury through the adenosine monophosphate–activated protein kinase pathway. Food Sci Nutr 2022; 10:3405-3414. [PMID: 36249972 PMCID: PMC9548363 DOI: 10.1002/fsn3.2941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 04/20/2022] [Accepted: 04/24/2022] [Indexed: 11/10/2022] Open
Abstract
Septic shock can aggravate organ dysfunction and even lead to death. Juniperus communis (JCo) extract has been experimentally demonstrated to have anti‐inflammatory and antioxidant effects. We investigated the anti‐inflammatory and antioxidant mechanism of JCo extract in vivo and in vitro. In a lipopolysaccharide (LPS)‐induced acute kidney injury rat model, JCo extract improved animal survival, reduced kidney injury scores, suppressed kidney injury molecule‐1, and preserved E‐cadherin expression from LPS damage, as demonstrated by the immunohistochemistry examinations of the rat kidneys. In LPS‐stimulated NRK‐52E cells, JCo extract inhibited nuclear factor‐κB (NF‐κB) and increased adenosine monophosphate–activated protein kinase (AMPK) expression, prompting the activation of the antioxidant nuclear factor erythroid 2–related factor‐2/heme oxygenase‐1 pathway against oxidative stress. JCo extract ameliorated LPS‐induced acute kidney injury by suppressing NF‐κB signaling and stimulating the release of tumor necrosis factor‐α and interleukin‐1β through the AMPK pathway.
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Affiliation(s)
- Ta‐Chin Lin
- Department of Surgery, National Defense Medical Center Tri‐Service General Hospital Penghu Branch Magong City Taiwan
| | - Chia‐Wen Lu
- Department of Nursing Buddhist Tzu Chi General Hospital Hualien Taiwan
| | - Kai‐Fu Chang
- Department of Medical Laboratory and Biotechnology Chung Shan Medical University Taichung Taiwan
| | - Chung‐Jen Lee
- Department of Nursing Tzu Chi University of Science and Technology Hualien Taiwan
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Rababa M, Bani Hamad D, Hayajneh AA. Sepsis assessment and management in critically Ill adults: A systematic review. PLoS One 2022; 17:e0270711. [PMID: 35776738 PMCID: PMC9249173 DOI: 10.1371/journal.pone.0270711] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 06/14/2022] [Indexed: 12/15/2022] Open
Abstract
Background
Early assessment and management of patients with sepsis can significantly reduce its high mortality rates and improve patient outcomes and quality of life.
Objectives
The purposes of this review are to: (1) explore nurses’ knowledge, attitude, practice, and perceived barriers and facilitators related to early recognition and management of sepsis, (2) explore different interventions directed at nurses to improve sepsis management.
Methods
A systematic review method according to the PRISMA guidelines was used. An electronic search was conducted in March 2021 on several databases using combinations of keywords. Two researchers independently selected and screened the articles according to the eligibility criteria.
Results
Nurses reported an adequate of knowledge in certain areas of sepsis assessment and management in critically ill adult patients. Also, nurses’ attitudes toward sepsis assessment and management were positive in general, but they reported some misconceptions regarding antibiotic use for patients with sepsis, and that sepsis was inevitable for critically ill adult patients. Furthermore, nurses reported they either were not well-prepared or confident enough to effectively recognize and promptly manage sepsis. Also, there are different kinds of nurses’ perceived barriers and facilitators related to sepsis assessment and management: nurse, patient, physician, and system-related. There are different interventions directed at nurses to help in improving nurses’ knowledge, attitudes, and practice of sepsis assessment and management. These interventions include education sessions, simulation, decision support or screening tools for sepsis, and evidence-based treatment protocols/guidelines.
Discussion
Our findings could help hospital managers in developing continuous education and staff development training programs on assessing and managing sepsis in critical care patients.
Conclusion
Nurses have poor to good knowledge, practices, and attitudes toward sepsis as well as report many barriers related to sepsis management in adult critically ill patients. Despite all education interventions, no study has collectively targeted critical care nurses’ knowledge, attitudes, and practice of sepsis management.
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Affiliation(s)
- Mohammad Rababa
- Adult Health Nursing Department, Faculty of Nursing, Jordan University of Science and Technology, Irbid, Jordan
- * E-mail:
| | - Dania Bani Hamad
- Adult Health Nursing Department, Faculty of Nursing, Jordan University of Science and Technology, Irbid, Jordan
| | - Audai A. Hayajneh
- Adult Health Nursing Department, Faculty of Nursing, Jordan University of Science and Technology, Irbid, Jordan
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The role of nitric oxide in sepsis-associated kidney injury. Biosci Rep 2022; 42:231441. [PMID: 35722824 PMCID: PMC9274646 DOI: 10.1042/bsr20220093] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 06/07/2022] [Accepted: 06/17/2022] [Indexed: 01/09/2023] Open
Abstract
Sepsis is one of the leading causes of acute kidney injury (AKI), and several mechanisms including microcirculatory alterations, oxidative stress, and endothelial cell dysfunction are involved. Nitric oxide (NO) is one of the common elements to all these mechanisms. Although all three nitric oxide synthase (NOS) isoforms are constitutively expressed within the kidneys, they contribute in different ways to nitrergic signaling. While the endothelial (eNOS) and neuronal (nNOS) isoforms are likely to be the main sources of NO under basal conditions and participate in the regulation of renal hemodynamics, the inducible isoform (iNOS) is dramatically increased in conditions such as sepsis. The overexpression of iNOS in the renal cortex causes a shunting of blood to this region, with consequent medullary ischemia in sepsis. Differences in the vascular reactivity among different vascular beds may also help to explain renal failure in this condition. While most of the vessels present vasoplegia and do not respond to vasoconstrictors, renal microcirculation behaves differently from nonrenal vascular beds, displaying similar constrictor responses in control and septic conditions. The selective inhibition of iNOS, without affecting other isoforms, has been described as the ideal scenario. However, iNOS is also constitutively expressed in the kidneys and the NO produced by this isoform is important for immune defense. In this sense, instead of a direct iNOS inhibition, targeting the NO effectors such as guanylate cyclase, potassium channels, peroxynitrite, and S-nitrosothiols, may be a more interesting approach in sepsis-AKI and further investigation is warranted.
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Hiengrach P, Visitchanakun P, Tongchairawewat P, Tangsirisatian P, Jungteerapanich T, Ritprajak P, Wannigama DL, Tangtanatakul P, Leelahavanichkul A. Sepsis Encephalopathy Is Partly Mediated by miR370-3p-Induced Mitochondrial Injury but Attenuated by BAM15 in Cecal Ligation and Puncture Sepsis Male Mice. Int J Mol Sci 2022; 23:ijms23105445. [PMID: 35628259 PMCID: PMC9141734 DOI: 10.3390/ijms23105445] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 05/06/2022] [Accepted: 05/10/2022] [Indexed: 02/06/2023] Open
Abstract
BAM15 (a mitochondrial uncoupling agent) was tested on cecal ligation and puncture (CLP) sepsis mice with in vitro experiments. BAM15 attenuated sepsis as indicated by survival, organ histology (kidneys and livers), spleen apoptosis (activated caspase 3), brain injury (SHIRPA score, serum s100β, serum miR370-3p, brain miR370-3p, brain TNF-α, and apoptosis), systemic inflammation (cytokines, cell-free DNA, endotoxemia, and bacteremia), and blood-brain barrier (BBB) damage (Evan's blue dye and the presence of green fluorescent E. coli in brain after an oral administration). In parallel, brain miR arrays demonstrated miR370-3p at 24 h but not 120 h post-CLP, which was correlated with metabolic pathways. Either lipopolysaccharide (LPS) or TNF-α upregulated miR370-3p in PC12 (neuron cells). An activation by sepsis factors (LPS, TNF-α, or miR370-3p transfection) damaged mitochondria (fluorescent color staining) and reduced cell ATP, possibly through profound mitochondrial activity (extracellular flux analysis) that was attenuated by BAM15. In bone-marrow-derived macrophages, LPS caused mitochondrial injury, decreased cell ATP, enhanced glycolysis activity (extracellular flux analysis), and induced pro-inflammatory macrophages (iNOS and IL-1β) which were neutralized by BAM15. In conclusion, BAM15 attenuated sepsis through decreased mitochondrial damage, reduced neuronal miR370-3p upregulation, and induced anti-inflammatory macrophages. BAM15 is proposed to be used as an adjuvant therapy against sepsis hyperinflammation.
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Affiliation(s)
- Pratsanee Hiengrach
- Center of Excellence on Translational Research in Inflammation and Immunology (CETRII), Department of Microbiology, Chulalongkorn University, Bangkok 10330, Thailand; (P.H.); (P.V.)
| | - Peerapat Visitchanakun
- Center of Excellence on Translational Research in Inflammation and Immunology (CETRII), Department of Microbiology, Chulalongkorn University, Bangkok 10330, Thailand; (P.H.); (P.V.)
| | - Pakteema Tongchairawewat
- Chulalongkorn University International Medical Program, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand; (P.T.); (P.T.); (T.J.)
| | - Ponphisudti Tangsirisatian
- Chulalongkorn University International Medical Program, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand; (P.T.); (P.T.); (T.J.)
| | - Thitiphat Jungteerapanich
- Chulalongkorn University International Medical Program, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand; (P.T.); (P.T.); (T.J.)
| | - Patcharee Ritprajak
- Research Unit in Integrative Immuno-Microbial Biochemistry and Bioresponsive Nanomaterials, Department of Microbiology, Faculty of Dentistry, Chulalongkorn University, Bangkok 10330, Thailand;
| | - Dhammika Leshan Wannigama
- Antimicrobial Resistance and Stewardship Research Unit, Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand;
- School of Medicine, Faculty of Health and Medical Sciences, The University of Western Australia, Nedlands, WA 6009, Australia
| | - Pattarin Tangtanatakul
- Department of Transfusion Medicine and Clinical Microbiology, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand
- Center of Excellence in Immunology and Immune-Mediated Disease, Department of Microbiology, Chulalongkorn University, Bangkok 10330, Thailand
- Correspondence: (P.T.); (A.L.); Tel.: +66-2256-4132 (A.L.); Fax: +66-2252-5952 (A.L.)
| | - Asada Leelahavanichkul
- Center of Excellence on Translational Research in Inflammation and Immunology (CETRII), Department of Microbiology, Chulalongkorn University, Bangkok 10330, Thailand; (P.H.); (P.V.)
- Nephrology Unit, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
- Correspondence: (P.T.); (A.L.); Tel.: +66-2256-4132 (A.L.); Fax: +66-2252-5952 (A.L.)
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Several Alkaloids in Chinese Herbal Medicine Exert Protection in Acute Kidney Injury: Focus on Mechanism and Target Analysis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:2427802. [PMID: 35602100 PMCID: PMC9122709 DOI: 10.1155/2022/2427802] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 04/03/2022] [Accepted: 04/21/2022] [Indexed: 12/13/2022]
Abstract
Objectives Acute kidney injury (AKI) is a loose set of kidney diseases accompanied by a variety of syndromes, which is a serious threat to human life and health. Some alkaloids are derived from various Chinese herbs have been widely concerned in the improvement of AKI. This review provides the research progress of alkaloids in AKI experimental models and discusses the related molecular mechanisms. Key Findings. Alkaloids can protect AKI through various mechanisms including antioxidant stress, improvement of mitochondrial damage, reduction of cell death, induction of autophagy, and inhibition of inflammation. These mechanisms are mainly related to the activation of Nrf2/HO-1 signaling pathway, inhibition of ferroptosis and apoptosis, regulation of PINK1/Parkin pathway, inhibition of TLR4/NF-κB pathway and NLRP3 inflammatory bodies, upregulation of Klotho protein level and so on. In addition, there are a few alkaloids that have certain toxicity on the kidney. Conclusion Alkaloids have been shown to significantly improve AKI, but only in pharmacological studies. This paper summarizes the main experimental models currently used in AKI research and describes some representative alkaloids based on recent research. Their potential roles in the prevention and treatment of AKI through different mechanisms are highlighted.
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Gao Q, Zheng Y, Wang H, Hou L, Hu X. circSTRN3 aggravates sepsis-induced acute kidney injury by regulating miR-578/ toll like receptor 4 axis. Bioengineered 2022; 13:11388-11401. [PMID: 35510365 PMCID: PMC9275965 DOI: 10.1080/21655979.2022.2061293] [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: 12/02/2022] Open
Abstract
Sepsis is a systemic inflammatory response caused by infection, and severe sepsis is commonly associated with the development of acute kidney injury (AKI). Accumulating evidence has revealed the implication of circular RNAs in AKI. In this study, we explored the potential engagement and the underlying mechanism of hsa_circ_010157 (circSTRN3) in sepsis-induced AKI. CircSTRN3 levels in HK2 cells and serum samples of patients were determined by RT-PCR. The protein levels of TLR4 (Toll Like Receptor 4), bax (Bcl-2-associated X protein), cleaved caspase 3 and bcl-2 (B-cell lymphoma-2) were detected by Western blotting (WB), and the levels of proinflammatory cytokines were detected by ELISA. The molecular interactions between mir-578/TLR4 and circSTRN3/miR-578 were analyzed by dual luciferase reporter assay as well as RNA pull-down experiment. Lipopolysaccharide (LPS) treated HK2 cells were used as an in vitro model to investigate the functional interaction of circSTRN3/miR-578/TLR4 axis. We found that the expression level of circSTRN3 in patients with sepsis-induced AKI and LPS-induced HK2 cells was higher. Silencing cicrSTRN3 alleviated LPS-induced cell proliferation, and suppressed the inflammatory response and apoptosis in LPS-treated HK2 cells. In contrast, the overexpression of circSTRN3 aggravated the cellular damages induced by LPS treatment. CircSTRN3 targeted miR-578/TLR4 axis to influence the damage effect induced by LPS. miR-578 inhibitor or TLR4 overexpression impaired the rescue effect of circSTRN3 knockdown. These results indicate that circSTRN3 upregulation in sepsis-induced AKI modulates miR-578/TLR4 axis to promote the pathogenesis of AKI, which could serve as future therapeutic targets for AKI treatment.
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Affiliation(s)
- Qiuying Gao
- Department of Hematology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
| | - Yan Zheng
- Department of Hematology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
| | - Hui Wang
- Department of Hematology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
| | - Limin Hou
- Department of Hematology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
| | - Xingxing Hu
- Department of Hematology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
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Xie Z, Wei L, Chen J, Chen Z. LncRNA NORAD deficiency alleviates kidney injury in mice and decreases the inflammatory response and apoptosis of lipopolysaccharide-stimulated HK-2 cells via the miR-577/GOLPH3 axis. Cytokine 2022; 153:155844. [DOI: 10.1016/j.cyto.2022.155844] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 02/21/2022] [Accepted: 02/23/2022] [Indexed: 12/13/2022]
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Zhang Y, Song C, Ni W, Pei Q, Wang C, Ying Y, Yao M. HSP70 Ameliorates Septic Acute Kidney Injury via Binding with TRAF6 to Inhibit of Inflammation-Mediated Apoptosis. J Inflamm Res 2022; 15:2213-2228. [PMID: 35411167 PMCID: PMC8994667 DOI: 10.2147/jir.s352717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 03/25/2022] [Indexed: 11/23/2022] Open
Abstract
Purpose Methods Results Conclusion
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Affiliation(s)
- Yiqiu Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
| | - Chenlu Song
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
| | - Wei Ni
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Qing Pei
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
| | - Caixia Wang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
| | - Youguo Ying
- Department of Intensive Care Unit, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
| | - Min Yao
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
- Correspondence: Min Yao; Youguo Ying, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, People’s Republic of China, Email ;
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Wang Z, Weng J, Yang J, Zhou X, Xu Z, Hou R, Zhou Z, Wang L, Chen C, Jin S. Acute kidney injury-attributable mortality in critically ill patients with sepsis. PeerJ 2022; 10:e13184. [PMID: 35356476 PMCID: PMC8958971 DOI: 10.7717/peerj.13184] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 03/07/2022] [Indexed: 01/12/2023] Open
Abstract
Background To assess whether acute kidney injury (AKI) is independently associated with hospital mortality in ICU patients with sepsis, and estimate the excess AKI-related mortality attributable to AKI. Methods We analyzed adult patients from two distinct retrospective critically ill cohorts: (1) Medical Information Mart for Intensive Care IV (MIMIC IV; n = 15,610) cohort and (2) Wenzhou (n = 1,341) cohort. AKI was defined by Kidney Disease: Improving Global Outcomes (KDIGO) criteria. We applied multivariate logistic and linear regression models to assess the hospital and ICU mortality, hospital length-of-stay (LOS), and ICU LOS. The excess attributable mortality for AKI in ICU patients with sepsis was further evaluated. Results AKI occurred in 5,225 subjects in the MIMIC IV cohort (33.5%) and 494 in the Wenzhou cohort (36.8%). Each stage of AKI was an independent risk factor for hospital mortality in multivariate logistic regression after adjusting for baseline illness severity. The excess attributable mortality for AKI was 58.6% (95% CI [46.8%-70.3%]) in MIMIC IV and 44.6% (95% CI [12.7%-76.4%]) in Wenzhou. Additionally, AKI was independently associated with increased ICU mortality, hospital LOS, and ICU LOS. Conclusion Acute kidney injury is an independent risk factor for hospital and ICU mortality, as well as hospital and ICU LOS in critically ill patients with sepsis. Thus, AKI is associated with excess attributable mortality.
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Affiliation(s)
- Zhiyi Wang
- Department of General Practice, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China,Center for Health Assessment, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jie Weng
- Department of General Practice, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jinwen Yang
- Department of Geriatric Medicine, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, China
| | - Xiaoming Zhou
- Department of General Practice, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Zhe Xu
- Department of Emergency Intensive Care Unit, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Ruonan Hou
- Department of General Practice, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Zhiliang Zhou
- Department of General Practice, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Liang Wang
- Department of Public Health, Robbins College of health and Human Sciences, Baylor University, Waco, TX, United States of America
| | - Chan Chen
- Department of Geriatric Medicine, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, China
| | - Shengwei Jin
- Department of Anesthesia and Critical Care, the Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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Inhibition of microRNA-665 Alleviates Septic Acute Kidney Injury by Targeting Bcl-2. JOURNAL OF HEALTHCARE ENGINEERING 2022; 2022:2961187. [PMID: 35281537 PMCID: PMC8913057 DOI: 10.1155/2022/2961187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 02/03/2022] [Indexed: 12/29/2022]
Abstract
Sepsis can easily cause acute kidney injury (AKI) and seriously endanger human health. This article aims to investigate and study the role of microRNA-665 (miR-665) in septic AKI and the underlying molecular mechanism. Lipopolysaccharide (LPS) was used to construct cell and animal models of septic AKI. The expression of miR-665 in cells and kidney tissues was detected by quantitative reverse-transcription polymerase chain reaction (RT-PCR). The contents of inflammatory factors (TNF-α, IL-1β, and IL-6) in the cell supernatant were detected using commercial kits. Renal tissue damage was observed by hematoxylin-eosin (HE) staining. Kidney function was assessed by serum Cr, serum BUN, and urine NAG levels. The apoptosis of HK-2 cells was analyzed by flow cytometry and TUNEL staining. Luciferase activity assay was performed for the verification of the target of miR-665. The expression of miR-665 was increased in the cell model and animal model of septic AKI constructed by LPS. By transfecting miR-665 inhibitor in HK-2 cells and injecting miR-665 antagomir (antagomiR-665) through the tail vein of rats, the expression of miR-665 in HK-2 cells and rat kidneys was remarkably reduced. Silencing miR-665 dramatically inhibited the expression of inflammatory factors (TNF-α, IL-1β, and IL-6) in LPS-induced HK-2 cells and reduced LPS-induced apoptosis in HK-2 cells. At the same time, the levels of serum Cr, serum BUN, and urine NAG decreased markedly, and the damage of the kidney was also alleviated. Finally, luciferase reporter experiments demonstrated that miR-665 directly targets Bcl-2. We revealed that miR-665 expression was increased in septic AKI, and silencing miR-665 could inhibit LPS-induced inflammation and apoptosis of the kidney by targeting Bcl-2, thereby improving renal function.
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25
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Falk GE, Rogers J, Lu L, Ablah E, Okut H, Vindhyal MR. Sepsis, Septic Shock, and Differences in Cardiovascular Event Occurrence. J Intensive Care Med 2022; 37:1528-1534. [PMID: 35236176 DOI: 10.1177/08850666221083644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Introduction: Mortality estimates from sepsis and septic shock ranged from 18% to 35% and 40% to 60%, respectively, prior to 2014. Sepsis patients who experience subsequent cardiovascular events have increased mortality; however, data are limited among septic shock patients. This study reports in-hospital mortality, incident cardiovascular events, and cardiovascular procedures among sepsis patients with and without subsequent septic shock. Methods: Patients with a primary diagnosis of sepsis with and without a secondary diagnosis of septic shock were identified from the 2016 and 2017 National Readmissions Database. These patients were then evaluated for the occurrence of cardiovascular events and procedures. Results: A total of 2,127,137 patients were included in the study, with a mean age of 66 years. Twenty percent of patients (n = 420,135) developed subsequent septic shock. In-hospital mortality among patients with a primary diagnosis of sepsis was 5.3%, and it was 31.2% for those with subsequent septic shock. Notable cardiovascular events occurring among sepsis patients with and without subsequent septic shock, respectively, included: acute kidney injury (65.1% vs. 32.8%, P < .0001), acute systolic heart failure (9.8% vs. 5.1%, P < .0001), NSTEMI (8.8% vs. 3.2%, P < .0001), and ischemic stroke (2.3% vs. 0.9%, P < .0001). Similarly, the most common cardiovascular procedures between the two groups were: percutaneous coronary intervention (0.37% vs. 0.20%, P < .0001), intra-aortic balloon pump (0.19% vs. 0.02%, P < .0001), and extracorporeal membrane oxygenation (0.18% vs. 0.01%, P < .0001). Conclusions: Sepsis with subsequent septic shock is associated with an increased frequency of in-hospital cardiovascular events and procedures.
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Affiliation(s)
- Grace E Falk
- Medical Students, 8586University of Kansas School of Medicine-Wichita, Wichita, KS, USA
| | - Jerad Rogers
- Medical Students, 8586University of Kansas School of Medicine-Wichita, Wichita, KS, USA
| | - Liuqiang Lu
- Department of Population Health, 8586University of Kansas School of Medicine-Wichita, Wichita, KS, USA
| | - Elizabeth Ablah
- Department of Population Health, 8586University of Kansas School of Medicine-Wichita, Wichita, KS, USA
| | - Hayrettin Okut
- Department of Population Health, 8586University of Kansas School of Medicine-Wichita, Wichita, KS, USA
| | - Mohinder R Vindhyal
- Department of Cardiovascular Disease, 21638Kansas University Medical Center, Kansas City, KS, USA
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Gao M, Li H, Liu Q, Ma N, Zi P, Shi H, Du Y. KLF6 Promotes Pyroptosis of Renal Tubular Epithelial Cells in Septic Acute Kidney Injury. Shock 2022; 57:417-426. [PMID: 34710881 DOI: 10.1097/shk.0000000000001881] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
ABSTRACT Septic acute kidney injury (SAKI) represents a clinical challenge with high morbidity and mortality. The current study aimed to analyze the effects and molecular mechanism of Krüppel-like factor 6 (KLF6) on SAKI. First, SAKI mouse models were established by cecum ligation and puncture, while in vivo cell models were established using lipopolysaccharide (LPS). RT-qPCR assay was subsequently performed to detect the levels of KLF6 mRNA. SAKI mice and LPS-treated TCMK-1 cells were further treated with KLF6 siRNA. Afterward, HE staining, PAS staining, Western blot assay, and ELISA were adopted to ascertain the effects of KLF6 in pyroptosis. The binding relationships between KLF6 and miR-223-3p promoter /miR-223-3p and NLRP3 were analyzed with the help of CHIP and dual-luciferase reporter assays. RT-qPCR was adopted to determine the expression patterns of miR-223-3p and NLRP3. Lastly, a rescue experiment was designed to confirm the role of miR-223-3p. It was found that KLF6 was highly expressed in SAKI, whereas knockdown of KLF6 alleviated oxidative stress (OS) and pyroptosis in SAKI mice and LPS-treated TCMK-1 cells. Mechanistic results confirmed that KLF6 inhibited miR-223-3p via binding to the miR-223-3p promoter and promoted NLRP3. On the other hand, downregulation of miR-223-3p activated the NLRP3/Caspase-1/IL-1β pathway and aggravated OS and pyroptosis. Overall, our findings indicated that KLF6 inhibited miR-223-3p via binding to the miR-223-3p promoter and promoted NLRP3, and activated the NLRP3/Caspase-1/IL-1β pathway, thereby aggravating pyroptosis and SAKI.
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Affiliation(s)
- Min Gao
- Department of Critical Care Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
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Wang B, Li Z, Mao L, Zhao M, Yang B, Tao X, Li Y, Yin G. Hydrogen: A Novel Treatment Strategy in Kidney Disease. KIDNEY DISEASES (BASEL, SWITZERLAND) 2022; 8:126-136. [PMID: 35527991 PMCID: PMC9021642 DOI: 10.1159/000520981] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Accepted: 11/14/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND Hydrogen is a chemical substance that has yet to be widely used in medicine. However, recent evidence indicates that hydrogen has multi-faceted pharmacological effects such as antioxidant, anti-inflammatory, and antiapoptotic properties. An increased number of studies are being conducted on the application of hydrogen in various diseases, especially those affecting the renal system. SUMMARY Hydrogen can be inhaled, as a gas or liquid, and can be administered orally, intravenously, or locally. Hydrogen can rapidly enter suborganelles such as mitochondria and nucleus by simple diffusion, producing reactive oxygen species (ROS) and triggering DNA damage. Hydrogen can selectively scavenge hydroxyl radical (•OH) and peroxynitrite (ONOO-), but not other reactive oxygen radicals with physiological functions, such as peroxyanion (O2-) and hydrogen peroxide (H2O2). Although the regulatory effect of hydrogen on the signal transduction pathway has been confirmed, the specific mechanism of its influence on signal molecules remains unknown. Although many studies have investigated the therapeutic and preventive effects of H2 in cellular and animal experiments, clinical trials are few and still far behind. As a result, more clinical trials are required to investigate the role of hydrogen in kidney disease, as well as the effect of its dose, timing, and form on the overall efficacy. Large-scale randomized controlled clinical trials will be required before hydrogen can be used to treat renal illnesses. KEY MESSAGES This article reviews the mechanisms of hydrogen in the treatment of renal disease and explores the possibilities of its use in clinical practice.
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Affiliation(s)
- Bo Wang
- Department of Urology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Zhuoshu Li
- Department of Pediatrics, The Third Xiangya Hospital, Central South University, Changsha, China
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Longfei Mao
- Bioinformatics Center, College of Biology, Hunan University, Changsha, China
| | - Mingyi Zhao
- Department of Pediatrics, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Bingchang Yang
- Department of Critical Care Medicine, Central South University, Changsha, China
| | - Xiaowu Tao
- Department of Urology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Yuxiang Li
- Department of Urology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Guangming Yin
- Department of Urology, The Third Xiangya Hospital, Central South University, Changsha, China
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Sun J, Ge X, Wang Y, Niu L, Tang L, Pan S. USF2 knockdown downregulates THBS1 to inhibit the TGF-β signaling pathway and reduce pyroptosis in sepsis-induced acute kidney injury. Pharmacol Res 2022; 176:105962. [PMID: 34756923 DOI: 10.1016/j.phrs.2021.105962] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 10/20/2021] [Accepted: 10/25/2021] [Indexed: 12/19/2022]
Abstract
OBJECTIVE Acute kidney injury (AKI) is a serious complication of sepsis. This study was performed to explore the mechanism that THBS1 mediated pyroptosis by regulating the TGF-β signaling pathway in sepsis-induced AKI. METHODS Gene expression microarray related to sepsis-induced AKI was obtained from the GEO database, and the mechanism in sepsis-induced AKI was predicted by bioinformatics analysis. qRT-PCR and ELISA were performed to detect expressions of THBS1, USF2, TNF-α, IL-1β, and IL-18 in sepsis-induced AKI patients and healthy volunteers. The mouse model of sepsis-induced AKI was established, with serum creatinine, urea nitrogen, 24-h urine output measured, and renal tissue lesions observed by HE staining. The cell model of sepsis-induced AKI was cultured in vitro, with expressions of TNF-α, IL-1β, and IL-18, pyroptosis, Caspase-1 and GSDMD-N, and activation of TGF-β/Smad3 pathway detected. The upstream transcription factor USF2 was knocked down in cells to explore its effect on sepsis-induced AKI. RESULTS THBS1 and USF2 were highly expressed in patients with sepsis-induced AKI. Silencing THBS1 protected mice against sepsis-induced AKI, and significantly decreased the expressions of NLRP3, Caspase-1, GSDMD-N, IL-1β, and IL-18, increased cell viability, and decreased LDH activity, thus partially reversing the changes in cell morphology. Mechanistically, USF2 promoted oxidative stress responses by transcriptionally activating THBS1 to activate the TGF-β/Smad3/NLRP3/Caspase-1 signaling pathway and stimulate pyroptosis, and finally exacerbated sepsis-induced AKI. CONCLUSION USF2 knockdown downregulates THBS1 to inhibit the TGF-β/Smad3 signaling pathway and reduce pyroptosis and further ameliorate sepsis-induced AKI.
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Affiliation(s)
- Jian Sun
- Department of Emergency, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Yangpu District, Shanghai 518110, China
| | - Xiaoli Ge
- Department of Emergency, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Yangpu District, Shanghai 518110, China
| | - Yang Wang
- Department of Emergency, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Yangpu District, Shanghai 518110, China
| | - Lei Niu
- Department of Emergency, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Yangpu District, Shanghai 518110, China
| | - Lujia Tang
- Department of Emergency, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Yangpu District, Shanghai 518110, China
| | - Shuming Pan
- Department of Emergency, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Yangpu District, Shanghai 518110, China.
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Mohammad KN, Chan EYY, Lau SYF, Lam HCY, Goggins WB, Chong KC. Relationship between acute kidney injury, seasonal influenza, and environmental factors: A 14-year retrospective analysis. ENVIRONMENT INTERNATIONAL 2021; 153:106521. [PMID: 33819723 DOI: 10.1016/j.envint.2021.106521] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 02/26/2021] [Accepted: 03/11/2021] [Indexed: 06/12/2023]
Abstract
Despite high incidence of acute kidney injury (AKI) among patients hospitalised for influenza, no previous work has attempted to analyse and quantify the association between the two. Herein, we made use of Hong Kong's surveillance data to evaluate the time-varying relationship between seasonal influenza and risk of AKI with adjustment for potential environmental covariates. Generalized additive model was used in conjunction with distributed-lag non-linear model to estimate the association of interest with daily AKI admissions as outcome and daily influenza admissions as predictor, while controlling for environmental variables (i.e. temperature, relative humidity, total rainfall, nitrogen dioxide, and ozone). Results suggested a positive association between risk of AKI admission and number of influenza hospitalisation cases, with relative risk reaching 1.12 (95% confidence interval, 1.10-1.15) at the 95th percentile. Using median as reference, an almost U-shaped association between risk of AKI admission and temperature was observed; the risk increased significantly when the temperature was low. While ozone was not shown to be a risk factor for AKI, moderate-to-high levels of nitrogen dioxide (50-95th percentile) were significantly associated with increased risk of AKI admission. This study mentioned the possibility that AKI hospitalisations are subject to environmental influences and offered support for a positive association between seasonal influenza and AKI occurrence in Hong Kong. Authorities are urged to extend the influenza vaccination program to individuals with pre-existing renal conditions to safeguard the health of the vulnerable. Given that adverse health effects are evident at current ambient levels of nitrogen dioxide, the government is recommended to adopt clean-air policies at the earliest opportunity to protect the health of the community.
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Affiliation(s)
- Kirran N Mohammad
- School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
| | - Emily Ying Yang Chan
- School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
| | - Steven Yuk-Fai Lau
- School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
| | - Holly Ching Yu Lam
- National Heart & Lung Institute, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - William Bernard Goggins
- School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
| | - Ka Chun Chong
- School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China; Clinical Trials and Biostatistics Laboratory, Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China; Centre for Health System and Policy Research, The Chinese University of Hong Kong, Hong Kong, China.
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Plasma miR-370-3P as a Biomarker of Sepsis-Associated Encephalopathy, the Transcriptomic Profiling Analysis of Microrna-Arrays From Mouse Brains. Shock 2021; 54:347-357. [PMID: 31743302 DOI: 10.1097/shk.0000000000001473] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The diagnosis of sepsis-associated encephalopathy (SAE), an alteration of conscious from sepsis, is difficult due to the similarity to altered states of conscious that occur from other causes. Transcriptomic analyses between mouse brains at 24 h after cecal ligation and puncture (CLP) (SAE brain as evaluated by SHIRPA score) and at 120 h post-CLP (survivor) were performed to discover the SAE biomarker. Then, candidate microRNAs were validated in mouse and patient samples.As such, increased miR-370-3p in SAE mouse-brains (compared with recovery phase) was demonstrated by transcriptomic miR-profiling and was highly expressed in brain (but not other organs) of 24 h post-CLP mice. Plasma miR-370-3p also increased in CLP but was non-detectable in bilateral-nephrectomy (BiNx, a representative model of acute uremic encephalopathy) despite blood brain barrier permeability defect (determined by plasma s100β and Evan blue dye assay) in both conditions. In parallel, high plasma miR-370-3p was demonstrated in patients with SAE (but not sepsis alone or uremia) suggesting the specificity toward SAE. The association among TNF-α, miR-370-3p and brain apoptosis was demonstrated by high serum TNF-α and increased brain apoptosis in SAE mice, TNF-α (but not other cytokines) activated miR-370-3p expression in PC-12 neuron cell, and increased cell apoptosis in miR-370-3p transfected PC-12 after incubation with TNF-α.In conclusion, miR-370-3p increased in brain and plasma of SAE mice but not uremic encephalopathy. Perhaps, TNF-α enhances cell susceptibility toward brain apoptosis in SAE, in part, through miR-370-3p induction in neuron. Our pilot results in patients with SAE supported the possibility that plasma miR-370-3p is an interesting SAE biomarker candidate. Further studies are warranted.
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Li L, Liu X, Li S, Wang Q, Wang H, Xu M, An Y. Tetrahydrocurcumin protects against sepsis-induced acute kidney injury via the SIRT1 pathway. Ren Fail 2021; 43:1028-1040. [PMID: 34187277 PMCID: PMC8253188 DOI: 10.1080/0886022x.2021.1942915] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Sepsis-induced acute kidney injury (AKI) continues to be associated with poor outcomes in critical care patients. Previous research has revealed that tetrahydrocurcumin (THC) exerts renoprotective effects in multiple nephritic disorders by modulating inflammation and oxidative stress. However, the effects of THC on sepsis-induced AKI and the underlying mechanisms remain unclear. In this study, a mouse model of sepsis-induced AKI, generated by cecal ligation and puncture operation, was used to investigate the protective effects of THC and the role of SIRT1. Histological manifestation and TUNEL analysis were observed to determine the severity of kidney damage. Levels of BUN, SCr, KIM-1, and UAlb/Cr were calculated to assess the renal function. Expressions of IL-1β, IL-6, and TNF-α were measured to evaluate the inflammatory response. MDA content, SOD, GSH, CAT, and GPx activities and DHE staining were analyzed to estimate the degree of oxidative stress. Protein expressions of SIRT1, Ac-p65, and Ac-foxo1 were detected to explore the underlying mechanisms. We observed that THC not only increased the survival rate, improved the kidney function and ameliorated the renal histological damage of septic mice, but also inhibited inflammatory response, prohibited oxidative stress, and prevented cell apoptosis in renal tissues in septic mice. Mechanistically, THC remarkably increased the expression of SIRT1, accompanied by decreased expressions of downstream molecules Ac-p65 and Ac-foxo1. Meanwhile, the beneficial effects of THC were clearly abolished by the SIRT1-specific inhibitor EX527. These results delineate that THC prevents sepsis-induced AKI by suppressing inflammation and oxidative stress through activating the SIRT1 signaling. Abbreviation: Ac-p65: acetylated p65; Ac-foxo 1: acetylated forkhead box O1; AKI: acute kidney injury; BUN: blood urea nitrogen; CAT: catalase; DHE: dihydroethidium; GPx: glutathione peroxidase; GSH: reduced glutathione; IL-1β: Interleukin-1 beta; IL-6: Interleukin-6; KIM-1: kidney injury molecule 1; MDA: malondialdehyde; SCr: serum creatinine; SIRT1: silent information regulator 1; SOD: superoxide dismutase; THC: tetrahydrocurcumin; TNF-α: tumor necrosis factor-alpha; TUNEL: TdT-mediated dUTP Nick-End Labeling; UAlb/Cr: urine micro albumin/creatinine.
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Affiliation(s)
- Lu Li
- Department of Nephrology, The First Affiliated Hospital, Xi'an Medical University, Xi'an, China
| | - Xiaoxi Liu
- Department of Nephrology, The First Affiliated Hospital, Xi'an Medical University, Xi'an, China
| | - Shasha Li
- Department of Nephrology, The First Affiliated Hospital, Xi'an Medical University, Xi'an, China
| | - Qingyan Wang
- Department of Nephrology, The First Affiliated Hospital, Xi'an Medical University, Xi'an, China
| | - Hongru Wang
- Department of Nephrology, The First Affiliated Hospital, Xi'an Medical University, Xi'an, China
| | - Menglu Xu
- Department of Nephrology, The First Affiliated Hospital, Xi'an Medical University, Xi'an, China
| | - Yanxin An
- Department of General Surgery, The First Affiliated Hospital, Xi'an Medical University, Xi'an, China
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Liu S, Zhao L, Zhang L, Qiao L, Gao S. Downregulation of miR-574-5p inhibits HK-2 cell viability and predicts the onset of acute kidney injury in sepsis patients. Ren Fail 2021; 43:942-948. [PMID: 34134589 PMCID: PMC8901276 DOI: 10.1080/0886022x.2021.1939051] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Background Increased levels of microRNA-574-5p (miR-574-5p) have been found to be associated with increased survival of septic patients, indicating the potential role of miR-574-5p in protecting against septic progression and complications. Acute kidney injury (AKI) is one of the most common and serious complications of sepsis. Therefore, the aim of this study was to test these hypotheses: (1) in a renal cell culture line (HK-2), upregulated expression of miR-574-5p increases, and downregulated expression of miR-574-5p decreases cell viability, and (2) serum levels of miR-574-5p from patients with sepsis and AKI are lower than those of patients with sepsis but no AKI. Methods The expression of miR-574-5p was regulated by cell transfection in HK-2 cells, and HK-2 cell viability was measured using the Cell Counting Kit-8. Serum miR-574-5p expression was analyzed using qRT-PCR. The predictive value of miR-574-5p for AKI onset was evaluated using the receiver operating characteristic curve and logistic regression analysis. Results The overexpression of miR-574-5p promoted HK-2 cell viability. Fifty-eight sepsis patients developed AKI, who had significantly lower miR-574-5p expression. miR-574-5p expression was decreased with AKI stage increase and correlated with kidney injury biomarker and had relatively high accuracy to predict AKI occurrence from sepsis patients. Conclusion Overexpression of miR-574-5p in cultured HK-2 cells increases cell viability and knocked-down expression of miR-574-5p decreases cell viability. Consistently, septic patients with AKI were found to have less upregulation of miR-574-5p expression compared to septic patients without AKI. Thus, serum miR-574-5p may provide a novel biomarker for septic AKI.
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Affiliation(s)
- Shanshan Liu
- Emergent Intensive Care Unit, Shengli Oilfield Central Hospital, Dongying, China
| | - Lishu Zhao
- Department of Critical Care Medicine, Shengli Oilfield Central Hospital, Dongying, China
| | - Li Zhang
- Department of Critical Care Medicine, Shengli Oilfield Central Hospital, Dongying, China
| | - Lujun Qiao
- Department of Critical Care Medicine, Shengli Oilfield Central Hospital, Dongying, China
| | - Shufang Gao
- Emergent Intensive Care Unit, Shengli Oilfield Central Hospital, Dongying, China
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Yin L, Zhao H, Zhang H, Li Y, Dong Y, Ju H, Kong F, Zhao S. Remdesivir Alleviates Acute Kidney Injury by Inhibiting the Activation of NLRP3 Inflammasome. Front Immunol 2021; 12:652446. [PMID: 34093539 PMCID: PMC8176923 DOI: 10.3389/fimmu.2021.652446] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 04/29/2021] [Indexed: 01/20/2023] Open
Abstract
Acute kidney injury (AKI) is a frequent clinical complication in critically ill patients, and it rapidly develops into renal failure with high morbidity and mortality. However, other than dialysis, no effective therapeutic interventions can offer reliable treatment to limit renal injury and improve survival. Here, we firstly reported that remdesivir (RDV, GS-5734), a broad-spectrum antiviral nucleotide prodrug, alleviated AKI by specifically inhibiting NOD-, LRR-, and pyrin domain-containing protein 3 (NLRP3) inflammasome activation in macrophages. Mechanically, RDV effectively suppressed the activities of nuclear transcription factor (NF)-κB, mitogen-activated protein kinase (MAPK), which further led to the reduction of the inflammasome genes of NLRP3 transcription, limiting the activation of NLRP3 inflammasome in vivo and in vitro. RDV also inhibited other pro-inflammatory genes including tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), IL-12, IL-1β, and interferon–β (IFN-β), leading to the reduction of inflammatory factors release. Thus, RDV can ameliorate AKI via modulating macrophage inflammasome activation and inflammatory immune responses and may have a therapeutic potential for patients with AKI in clinical application.
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Affiliation(s)
- Liang Yin
- Department of Central Laboratory, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.,Engineering Laboratory of Urinary Organ and Functional Reconstruction of Shandong Province, Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, China
| | - Haoxin Zhao
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, OH, United States
| | - Huiyu Zhang
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - Yi Li
- Department of Central Laboratory, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.,Engineering Laboratory of Urinary Organ and Functional Reconstruction of Shandong Province, Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, China
| | - Yuhao Dong
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Huijin Ju
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Feng Kong
- Department of Central Laboratory, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.,Engineering Laboratory of Urinary Organ and Functional Reconstruction of Shandong Province, Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, China
| | - Shengtian Zhao
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.,Binzhou Medical University, Yantai, China
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Yang S, Su T, Huang L, Feng LH, Liao T. A novel risk-predicted nomogram for sepsis associated-acute kidney injury among critically ill patients. BMC Nephrol 2021; 22:173. [PMID: 33971853 PMCID: PMC8111773 DOI: 10.1186/s12882-021-02379-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 04/28/2021] [Indexed: 02/06/2023] Open
Abstract
Background Acute kidney injury (AKI) is a prevalent and severe complication of sepsis contributing to high morbidity and mortality among critically ill patients. In this retrospective study, we develop a novel risk-predicted nomogram of sepsis associated-AKI (SA-AKI). Methods A total of 2,871 patients from the Medical Information Mart for Intensive Care III (MIMIC-III) critical care database were randomly assigned to primary (2,012 patients) and validation (859 patients) cohorts. A risk-predicted nomogram for SA-AKI was developed through multivariate logistic regression analysis in the primary cohort while the nomogram was evaluated in the validation cohort. Nomogram discrimination and calibration were assessed using C-index and calibration curves in the primary and external validation cohorts. The clinical utility of the final nomogram was evaluated using decision curve analysis. Results Risk predictors included in the prediction nomogram included length of stay in intensive care unit (LOS in ICU), baseline serum creatinine (SCr), glucose, anemia, and vasoactive drugs. Nomogram revealed moderate discrimination and calibration in estimating the risk of SA-AKI, with an unadjusted C-index of 0.752, 95 %Cl (0.730–0.774), and a bootstrap-corrected C index of 0.749. Application of the nomogram in the validation cohort provided moderate discrimination (C-index, 0.757 [95 % CI, 0.724–0.790]) and good calibration. Besides, the decision curve analysis (DCA) confirmed the clinical usefulness of the nomogram. Conclusions This study developed and validated an AKI risk prediction nomogram applied to critically ill patients with sepsis, which may help identify reasonable risk judgments and treatment strategies to a certain extent. Nevertheless, further verification using external data is essential to enhance its applicability in clinical practice.
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Affiliation(s)
- Shanglin Yang
- Department of Academic Affairs Office, YouJiang Medical University for Nationalities, Baise, China
| | - Tingting Su
- Department of ECG Diagnostics, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Lina Huang
- Department of Comprehensive Internal Medicine, The Affiliated Tumor Hospital of Guangxi Medical University, Nanning, China
| | - Lu-Huai Feng
- Department of Comprehensive Internal Medicine, The Affiliated Tumor Hospital of Guangxi Medical University, Nanning, China.
| | - Tianbao Liao
- Department of President's Office, YouJiang Medical University for Nationalities, Baise, China.
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Wang J, Zhang W, Lu G. Thioredoxin relieves lipopolysaccharide-induced acute kidney injury in mice by reducing inflammation, oxidative stress and apoptosis. Exp Ther Med 2021; 21:629. [PMID: 33936285 PMCID: PMC8082584 DOI: 10.3892/etm.2021.10061] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 03/08/2021] [Indexed: 12/16/2022] Open
Abstract
Acute kidney injury (AKI) is a serious disease with rapid onset and a high mortality rate. It is therefore particularly important to identify a suitable method for treating AKI. Thioredoxin (Trx) is a potent anti-inflammatory and anti-oxidant protein that is prevalent in living organisms. The aim of the present study was to facilitate the clinical treatment of AKI via the study of Trx. Lipopolysaccharide (LPS) was used to construct an AKI model in mice and the mice were pre-treated with Trx to examine its effect on AKI. In addition, human renal tubular epithelial HK-2 cells were cultured and stimulated with Trx to examine its effect on inflammation, levels of oxidative stress and apoptosis in the HK-2 cells. The NF-κB signaling pathway is a classical inflammation-related pathway and the mechanism of Trx was investigated by evaluating the association between Trx and the NF-κB signaling pathway. Trx treatment reduced LPS-induced levels of inflammation, oxidative stress and apoptosis in the HK-2 cells. The activity of NF-κB signaling pathway was increased in LPS-induced HK-2 cells, while Trx treatment effectively reduced NF-κB signaling pathway activity. In addition, Trx treatment significantly reduced LPS-induced mouse AKI in vivo, which was characterized by a decrease in inflammatory factors in mouse serum, a decrease in AKI-associated molecules in mouse urine and a decrease in oxidative stress levels in mouse kidney tissue samples. Trx treatment reduced inflammation, levels of oxidative stress and apoptosis in HK-2 cells by inhibiting the NF-κB signaling pathway, thereby alleviating LPS-induced mouse AKI.
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Affiliation(s)
- Jingjing Wang
- Department of Nephrology, Changzhou Fourth People's Hospital, Changzhou, Jiangsu 213000, P.R. China
| | - Wenjuan Zhang
- Department of Nephrology, Changzhou Fourth People's Hospital, Changzhou, Jiangsu 213000, P.R. China
| | - Guoyuan Lu
- Department of Nephrology, First Affiliated Hospital of Suzhou University, Suzhou, Jiangsu 215000, P.R. China
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Zhang X, Huang Z, Wang Y, Wang T, Li J, Xi P. Long Non-Coding RNA RMRP Contributes to Sepsis-Induced Acute Kidney Injury. Yonsei Med J 2021; 62:262-273. [PMID: 33635017 PMCID: PMC7934096 DOI: 10.3349/ymj.2021.62.3.262] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 10/15/2020] [Accepted: 11/11/2020] [Indexed: 12/14/2022] Open
Abstract
PURPOSE This study aimed to explore the role of the long non-coding RNA (lncRNA) RNA component of mitochondrial RNAase P (RMRP) in sepsis-induced acute kidney injury (AKI). MATERIALS AND METHODS Venous blood was collected from septic patients and healthy people. C57BL/6 mice who underwent cecal ligation and puncture (CLP) were used as in vivo models of septic AKI. Lipopolysaccharide (LPS)-induced HK-2 cells were employed as in vitro models of AKI. Flow cytometry analysis was conducted to detect cell apoptosis. Enzyme-linked immunosorbent assay and Western blot assays were used to detect levels of pro-inflammatory cytokines. RESULTS RMRP was upregulated in sera from patients with AKI and in LPS-induced cells. Knockdown of RMRP inhibited cell apoptosis and reduced production of inflammatory factors in LPS-induced cells, as well as alleviated AKI in CLP mice. RMRP facilitated inflammation by activating NACHT, LRR, and PYD domains-containing protein 3 (NLRP3) inflammasome. We found that microRNA 206 (miR-206) binds with and is negatively regulated by RMRP: miR-206 directly targets the 3' untranslated region of DEAD-box helicase 5 (DDX5) and negatively regulates DDX5 expression. By binding with miR-206, RMRP upregulated DDX5 expression. Rescue assays revealed that overexpression of DDX5 counteracted the effect of RMRP inhibition on cell apoptosis and inflammatory response in LPS-induced cells. CONCLUSION The lncRNA RMRP contributes to sepsis-induced AKI through upregulation of DDX5 in a miR-206 dependent manner and through activation of NLRP3 inflammasome. This novel discovery may provide a potential strategy for treating AKI.
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Affiliation(s)
- Xia Zhang
- Department of Emergency, Affiliated Hospital of Nantong University, Nantong, China
| | - Zhongwei Huang
- Department of Emergency, Affiliated Hospital of Nantong University, Nantong, China.
| | - Yan Wang
- Department of Emergency, Affiliated Hospital of Nantong University, Nantong, China
| | - Ting Wang
- Department of Emergency, Affiliated Hospital of Nantong University, Nantong, China
| | - Jingjing Li
- Department of Emergency, Affiliated Hospital of Nantong University, Nantong, China
| | - Peipei Xi
- Department of Emergency, Affiliated Hospital of Nantong University, Nantong, China
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Ma X, Zhu G, Jiao T, Shao F. Effects of circular RNA Ttc3/miR-148a/Rcan2 axis on inflammation and oxidative stress in rats with acute kidney injury induced by sepsis. Life Sci 2021; 272:119233. [PMID: 33600863 DOI: 10.1016/j.lfs.2021.119233] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 02/05/2021] [Accepted: 02/11/2021] [Indexed: 02/07/2023]
Abstract
Aim Increasing evidence demonstrated circular RNAs (circRNAs) are involved in the development of various diseases, including sepsis-induced AKI. Although CIRC-Ttc3 has been proved to regulate cardiac function after myocardial infarction, its role in sepsis-induced AKI remains unclear. MATERIALS AND METHODS The AKI rat model was firstly induced by sepsis through cecal ligation puncture (CLP). Serum levels of creatinine, BUN, NGAL, TNF-α, IL-6, SOD, MDA and IL-1β were measured through appropriate kits. The pathological alteration and renal microvascular permeability in renal tissues were determined by HE staining and Evans Blue assays. Cell apoptosis was detected by TUNEL assay. The expression levels of CIRC-Ttc3, miR-148a, TNF-α, IL-1β and iNOS in rats' renal samples were tested by qRT-PCR or/and western blot. The binding ability between CIRC-Ttc3 and miR-148a was evaluated through luciferase reporter, RIP and RNA pull-down assays. KEY FINDINGS Kidney injury was found in CLP-treated rats. CIRC-Ttc3 expression was down-regulated, and upregulation of CIRC-Ttc3 improved inflammatory responses and oxidative stress in AKI rats. Mechanismly, CIRC-Ttc3 was confirmed to bind to and negatively regulate miR-148a. Further rescue assays revealed that overexpression of miR-148a rescued the improvement of CIRC-Ttc3 on sepsis-induced AKI. Then, it was illustrated that CIRC-Ttc3 regulated Rcan2 expression by binding to miR-148a. Finally, knockdown of Rcan2 reversed the effects of miR-148a inhibition on sepsis-induced AKI. SIGNIFICANCE CIRC-Ttc3 relieved inflammation and oxidative stress through regulating the miR-148a/Rcan2 axis in rats with AKI induced by sepsis. Therefore, CIRC-Ttc3 may be a potential therapeutic target for sepsis-induced AKI.
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Affiliation(s)
- Xu Ma
- Department of Nephrology, People's Hospital of Zhengzhou University, Zhengzhou 450003, People's Republic of China
| | - Guizhen Zhu
- Department of Nephrology, People's Hospital of Zhengzhou University, Zhengzhou 450003, People's Republic of China
| | - Tiantian Jiao
- Department of Nephrology, People's Hospital of Zhengzhou University, Zhengzhou 450003, People's Republic of China
| | - Fengmin Shao
- Department of Nephrology, People's Hospital of Zhengzhou University, Zhengzhou 450003, People's Republic of China.
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Fenner BP, Darden DB, Kelly LS, Rincon J, Brakenridge SC, Larson SD, Moore FA, Efron PA, Moldawer LL. Immunological Endotyping of Chronic Critical Illness After Severe Sepsis. Front Med (Lausanne) 2021; 7:616694. [PMID: 33659259 PMCID: PMC7917137 DOI: 10.3389/fmed.2020.616694] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 12/14/2020] [Indexed: 12/15/2022] Open
Abstract
Improved management of severe sepsis has been one of the major health care accomplishments of the last two decades. Due to enhanced recognition and improved management of severe sepsis, in-hospital mortality has been reduced by up to 40%. With that good news, a new syndrome has unfortunately replaced in-hospital multi-organ failure and death. This syndrome of chronic critical illness (CCI) includes sepsis patients who survive the early "cytokine or genomic storm," but fail to fully recover, and progress into a persistent state of manageable organ injury requiring prolonged intensive care. These patients are commonly discharged to long-term care facilities where sepsis recidivism is high. As many as 33% of sepsis survivors develop CCI. CCI is the result, at least in part, of a maladaptive host response to chronic pattern-recognition receptor (PRR)-mediated processes. This maladaptive response results in dysregulated myelopoiesis, chronic inflammation, T-cell atrophy, T-cell exhaustion, and the expansion of suppressor cell functions. We have defined this panoply of host responses as a persistent inflammatory, immune suppressive and protein catabolic syndrome (PICS). Why is this important? We propose that PICS in survivors of critical illness is its own common, unique immunological endotype driven by the constant release of organ injury-associated, endogenous alarmins, and microbial products from secondary infections. While this syndrome can develop as a result of a diverse set of pathologies, it represents a shared outcome with a unique underlying pathobiological mechanism. Despite being a common outcome, there are no therapeutic interventions other than supportive therapies for this common disorder. Only through an improved understanding of the immunological endotype of PICS can rational therapeutic interventions be designed.
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Affiliation(s)
- Brittany P Fenner
- Department of Surgery, Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, FL, United States
| | - D B Darden
- Department of Surgery, Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, FL, United States
| | - Lauren S Kelly
- Department of Surgery, Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, FL, United States
| | - Jaimar Rincon
- Department of Surgery, Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, FL, United States
| | - Scott C Brakenridge
- Department of Surgery, Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, FL, United States
| | - Shawn D Larson
- Department of Surgery, Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, FL, United States
| | - Frederick A Moore
- Department of Surgery, Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, FL, United States
| | - Philip A Efron
- Department of Surgery, Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, FL, United States
| | - Lyle L Moldawer
- Department of Surgery, Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, FL, United States
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Zhang D, Qi B, Li D, Feng J, Huang X, Ma X, Huang L, Wang X, Liu X. Phillyrin Relieves Lipopolysaccharide-Induced AKI by Protecting Against Glycocalyx Damage and Inhibiting Inflammatory Responses. Inflammation 2021; 43:540-551. [PMID: 31832909 PMCID: PMC7095384 DOI: 10.1007/s10753-019-01136-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Damage to the integrity of heparin sulfate (HS) in the endothelial glycocalyx is an important factor of glomerular filtration barrier dysfunction, which is the basic pathological feature of acute kidney injury (AKI). AKI is a common clinical critical illness with few drugs options offering effective treatment. Phillyrin (Phil), the main pharmacological component of Forsythia suspensa, possesses a wide range of pharmacological activities. However, the effects of Phil on lipopolysaccharide (LPS)-induced AKI have yet to be reported. The aim of the present study is to analyze the effects of Phil on HS damage and inflammatory signaling pathways in LPS-induced AKI. Results revealed that Phil reduces pathological changes and improves renal function in LPS-induced AKI. Further analysis indicated that Phil effectively protects against glycocalyx HS degradation in LPS-stimulated EA.hy926 cells in vitro and LPS-induced AKI mice in vivo. The protective effect of Phil on HS damage may be associated with the isolate's ability to suppress the production of reactive oxygen species, and decrease expression levels of cathepsin L and heparanase in vitro and in vivo. In addition, ELISA and Western blot results revealed that Phil inhibits the activation of the NF-κB and MAPK signaling pathways and decreases the levels of inflammatory cytokines (IL-1β, IL-6, and TNF-α) in LPS-induced ARDS mice. In general, protection against endothelial glycocalyx HS damage and inhibition of inflammatory responses by Phil may be used as treatment targets for LPS-induced AKI.
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Affiliation(s)
- Dong Zhang
- Department of Respirator Medicine and Intensive Care Unit, Affiliated Hospital of Binzhou Medical University, Binzhou, China
| | - Boyang Qi
- Department of Respirator Medicine and Intensive Care Unit, Affiliated Hospital of Binzhou Medical University, Binzhou, China
| | - Dongxiao Li
- Department of Respirator Medicine and Intensive Care Unit, Affiliated Hospital of Binzhou Medical University, Binzhou, China
| | - Jiali Feng
- Department of Respirator Medicine and Intensive Care Unit, Affiliated Hospital of Binzhou Medical University, Binzhou, China
| | - Xiao Huang
- Department of Respirator Medicine and Intensive Care Unit, Affiliated Hospital of Binzhou Medical University, Binzhou, China
| | - Xiaohong Ma
- Department of Respirator Medicine and Intensive Care Unit, Affiliated Hospital of Binzhou Medical University, Binzhou, China
| | - Lina Huang
- Department of Cell Biology, Binzhou Medical University, Yantai, China
| | - Xiaozhi Wang
- Department of Respirator Medicine and Intensive Care Unit, Affiliated Hospital of Binzhou Medical University, Binzhou, China.
| | - Xiangyong Liu
- Department of Cell Biology, Binzhou Medical University, Yantai, China.
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Zhang H, Che L, Wang Y, Zhou H, Gong H, Man X, Zhao Q. Deregulated microRNA-22-3p in patients with sepsis-induced acute kidney injury serves as a new biomarker to predict disease occurrence and 28-day survival outcomes. Int Urol Nephrol 2021; 53:2107-2116. [PMID: 33511504 DOI: 10.1007/s11255-021-02784-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 01/19/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND Acute kidney injury (AKI) is a common and serious complication of sepsis. MicroRNA-22-3p (miR-22-3p) has been found to be involved in septic AKI progression. The purpose of this study was to analyze both the serum and urinary expression of miR-22-3p in septic AKI patients, and evaluated the clinical value of miR-22-3p in the diagnosis and prognosis of sepsis-induced AKI. METHODS Serum and urinary expression of miR-22-3p was examined using qRT-PCR. The risk factors related with septic AKI onset were assessed using logistic analysis. A receiver-operating characteristic (ROC) curve was constructed to evaluate the diagnostic performance of miR-22-3p, and the Kaplan-Meier survival curves and Cox regression analysis were used to evaluate the predictive value of miR-22-3p for the 28-day survival of septic AKI patients. RESULTS Both serum and urinary miR-22-3p expression was decreased and negatively correlated with kidney injury biomarkers in septic AKI patients. MiR-22-3p expression was a risk factor for AKI onset and had diagnostic accuracy in septic AKI patients. The expression of both serum and urinary miR-22-3p was lower in patients who died, and served as a prognostic biomarker to predict 28-day survival in septic AKI patients. CONCLUSION Serum and urinary miR-22-3p was reduced in sepsis-induced AKI patients, and served as a biomarker to predict AKI occurrence and 28-day survival in sepsis patients.
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Affiliation(s)
- Hui Zhang
- Department of Nephrology, The Affiliated Hospital of Qingdao University, No. 16, Jiangsu Road, Qingdao, 266003, Shandong, China
| | - Lin Che
- Department of Nephrology, The Affiliated Hospital of Qingdao University, No. 16, Jiangsu Road, Qingdao, 266003, Shandong, China
| | - Yanfei Wang
- Department of Nephrology, The Affiliated Hospital of Qingdao University, No. 16, Jiangsu Road, Qingdao, 266003, Shandong, China
| | - Haiyan Zhou
- Department of Nephrology, The Affiliated Hospital of Qingdao University, No. 16, Jiangsu Road, Qingdao, 266003, Shandong, China
| | - Haihong Gong
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Qingdao University, No. 16, Jiangsu Road, Qingdao, 266003, Shandong, China
| | - Xiaofei Man
- Department of Nephrology, The Affiliated Hospital of Qingdao University, No. 16, Jiangsu Road, Qingdao, 266003, Shandong, China
| | - Qian Zhao
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Qingdao University, No. 16, Jiangsu Road, Qingdao, 266003, Shandong, China.
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Guerrero-Hue M, Rayego-Mateos S, Vázquez-Carballo C, Palomino-Antolín A, García-Caballero C, Opazo-Rios L, Morgado-Pascual JL, Herencia C, Mas S, Ortiz A, Rubio-Navarro A, Egea J, Villalba JM, Egido J, Moreno JA. Protective Role of Nrf2 in Renal Disease. Antioxidants (Basel) 2020; 10:antiox10010039. [PMID: 33396350 PMCID: PMC7824104 DOI: 10.3390/antiox10010039] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 12/26/2020] [Accepted: 12/27/2020] [Indexed: 02/07/2023] Open
Abstract
Chronic kidney disease (CKD) is one of the fastest-growing causes of death and is predicted to become by 2040 the fifth global cause of death. CKD is characterized by increased oxidative stress and chronic inflammation. However, therapies to slow or prevent CKD progression remain an unmet need. Nrf2 (nuclear factor erythroid 2-related factor 2) is a transcription factor that plays a key role in protection against oxidative stress and regulation of the inflammatory response. Consequently, the use of compounds targeting Nrf2 has generated growing interest for nephrologists. Pre-clinical and clinical studies have demonstrated that Nrf2-inducing strategies prevent CKD progression and protect from acute kidney injury (AKI). In this article, we review current knowledge on the protective mechanisms mediated by Nrf2 against kidney injury, novel therapeutic strategies to induce Nrf2 activation, and the status of ongoing clinical trials targeting Nrf2 in renal diseases.
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Affiliation(s)
- Melania Guerrero-Hue
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), University of Cordoba, 14004 Cordoba, Spain; (M.G.-H.); (S.R.-M.); (C.G.-C.); (J.L.M.-P.)
| | - Sandra Rayego-Mateos
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), University of Cordoba, 14004 Cordoba, Spain; (M.G.-H.); (S.R.-M.); (C.G.-C.); (J.L.M.-P.)
| | - Cristina Vázquez-Carballo
- Instituto de Investigación Sanitaria (IIS)-Fundación Jiménez Díaz, Autónoma University, 28040 Madrid, Spain; (C.V.-C.); (L.O.-R.); (C.H.); (S.M.); (A.O.); (J.E.)
| | - Alejandra Palomino-Antolín
- Research Unit, Hospital Universitario Santa Cristina, IIS-Hospital Universitario de la Princesa, 28006 Madrid, Spain; (A.P.-A.); (J.E.)
- Departament of Pharmacology and Therapeutics, Medicine Faculty, Instituto Teófilo Hernando, Autónoma University, 28029 Madrid, Spain
| | - Cristina García-Caballero
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), University of Cordoba, 14004 Cordoba, Spain; (M.G.-H.); (S.R.-M.); (C.G.-C.); (J.L.M.-P.)
| | - Lucas Opazo-Rios
- Instituto de Investigación Sanitaria (IIS)-Fundación Jiménez Díaz, Autónoma University, 28040 Madrid, Spain; (C.V.-C.); (L.O.-R.); (C.H.); (S.M.); (A.O.); (J.E.)
- Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), 28040 Madrid, Spain
| | - José Luis Morgado-Pascual
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), University of Cordoba, 14004 Cordoba, Spain; (M.G.-H.); (S.R.-M.); (C.G.-C.); (J.L.M.-P.)
| | - Carmen Herencia
- Instituto de Investigación Sanitaria (IIS)-Fundación Jiménez Díaz, Autónoma University, 28040 Madrid, Spain; (C.V.-C.); (L.O.-R.); (C.H.); (S.M.); (A.O.); (J.E.)
| | - Sebastián Mas
- Instituto de Investigación Sanitaria (IIS)-Fundación Jiménez Díaz, Autónoma University, 28040 Madrid, Spain; (C.V.-C.); (L.O.-R.); (C.H.); (S.M.); (A.O.); (J.E.)
- Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), 28040 Madrid, Spain
| | - Alberto Ortiz
- Instituto de Investigación Sanitaria (IIS)-Fundación Jiménez Díaz, Autónoma University, 28040 Madrid, Spain; (C.V.-C.); (L.O.-R.); (C.H.); (S.M.); (A.O.); (J.E.)
- Red Nacional Investigaciones Nefrológicas (REDINREN), 28040 Madrid, Spain
| | - Alfonso Rubio-Navarro
- Weill Center for Metabolic Health and Division of Cardiology, Department of Medicine, Weill Cornell Medicine, New York, NY 10065, USA;
| | - Javier Egea
- Research Unit, Hospital Universitario Santa Cristina, IIS-Hospital Universitario de la Princesa, 28006 Madrid, Spain; (A.P.-A.); (J.E.)
- Departament of Pharmacology and Therapeutics, Medicine Faculty, Instituto Teófilo Hernando, Autónoma University, 28029 Madrid, Spain
| | - José Manuel Villalba
- Department of Cell Biology, Physiology, and Immunology, Agrifood Campus of International Excellence (ceiA3), University of Cordoba, 14014 Cordoba, Spain;
| | - Jesús Egido
- Instituto de Investigación Sanitaria (IIS)-Fundación Jiménez Díaz, Autónoma University, 28040 Madrid, Spain; (C.V.-C.); (L.O.-R.); (C.H.); (S.M.); (A.O.); (J.E.)
- Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), 28040 Madrid, Spain
| | - Juan Antonio Moreno
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), University of Cordoba, 14004 Cordoba, Spain; (M.G.-H.); (S.R.-M.); (C.G.-C.); (J.L.M.-P.)
- Department of Cell Biology, Physiology, and Immunology, Agrifood Campus of International Excellence (ceiA3), University of Cordoba, 14014 Cordoba, Spain;
- Hospital Universitario Reina Sofia, 14004 Cordoba, Spain
- Biomedical Research Networking Center on Cardiovascular Diseases (CIBERCV), 28040 Madrid, Spain
- Correspondence: ; Tel.: +34-957-218-039
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42
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Ding C, Zheng J, Wang B, Li Y, Xiang H, Dou M, Qiao Y, Tian P, Ding X, Xue W. Exosomal MicroRNA-374b-5p From Tubular Epithelial Cells Promoted M1 Macrophages Activation and Worsened Renal Ischemia/Reperfusion Injury. Front Cell Dev Biol 2020; 8:587693. [PMID: 33324643 PMCID: PMC7726230 DOI: 10.3389/fcell.2020.587693] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 10/28/2020] [Indexed: 01/06/2023] Open
Abstract
Tubular epithelial cells (TECs) represent the primary site of renal ischemia/reperfusion injury (RIRI). However, whether the damage of TECs could drive the initiation of inflammation was unclear. Here we investigated the role of the TECs and macrophages during RIRI. Increased expression of inflammation response and activated M1 macrophage were determined in the mice model of RIRI. Moreover, we demonstrated global miRNA expression profiling of renal exosomes, and miR-374b-5p was most upregulated in these exosomes in vivo. Inhibition of miR-374b-5p in the mice upon RIR operation would alleviate the kidney injury via decreasing the production of proinflammatory cytokines and suppressing the macrophage activation. Similar results were also identified in the hypoxia-induced cell model where exosomal miR-374b-5p was dramatically upregulated. Uptake of exosomes derived from the hypoxic TECs by macrophages would trigger M1 polarization via transferring miR-374b-5p. Besides, we confirmed that miR-374b-5p could directly bind to Socs1 using a dual-luciferase reporter assay. Notably, when we injected the miR-374b-5p-enriched exosomes into mice, a high-level inflammatory response and M1 macrophage activation were performed. Our studies demonstrated that exosomal miR-374b-5p played an essential role in the communication between injured TECs and macrophages, resulting in the M1 macrophage activation during RIRI. The blockage of the release of such exosomes may serve as a new therapeutic strategy for RIRI.
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Affiliation(s)
- Chenguang Ding
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Jin Zheng
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Bo Wang
- Institute of Organ Transplantation, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China.,Department of Materials Science and Engineering, Monash University, Melbourne, VIC, Australia
| | - Yang Li
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Heli Xiang
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Meng Dou
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Yuxi Qiao
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Puxun Tian
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Xiaoming Ding
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Wujun Xue
- Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China.,Institute of Organ Transplantation, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
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43
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Wei W, Ma N, Fan X, Yu Q, Ci X. The role of Nrf2 in acute kidney injury: Novel molecular mechanisms and therapeutic approaches. Free Radic Biol Med 2020; 158:1-12. [PMID: 32663513 DOI: 10.1016/j.freeradbiomed.2020.06.025] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 05/24/2020] [Accepted: 06/11/2020] [Indexed: 12/13/2022]
Abstract
Acute kidney injury (AKI) is a common clinical syndrome that is related to high morbidity and mortality. Oxidative stress, including the production of reactive oxygen species (ROS), appears to be the main element in the occurrence of AKI and the cause of the progression of chronic kidney disease (CKD) into end-stage renal disease (ESRD). Nuclear factor erythroid 2 related factor 2 (Nrf2) is a significant regulator of redox balance that has been shown to improve kidney disease by eliminating ROS. To date, researchers have found that the use of Nrf2-activated compounds can effectively reduce ROS, thereby preventing or retarding the progression of various types of AKI. In this review, we summarized the molecular mechanisms of Nrf2 and ROS in AKI and described the latest findings on the therapeutic potential of Nrf2 activators in various types of AKI.
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Affiliation(s)
- Wei Wei
- Department of Urology, The First Hospital, Jilin University, Changchun, China
| | - Ning Ma
- Department of Urology, The First Hospital, Jilin University, Changchun, China
| | - Xiaoye Fan
- Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China
| | - Qinlei Yu
- Jilin Provincial Animal Disease Control Center, 4510 Xi'an Road, Changchun, 130062, China
| | - Xinxin Ci
- Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China.
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Nrp-1 Mediated Plasmatic Ago2 Binding miR-21a-3p Internalization: A Novel Mechanism for miR-21a-3p Accumulation in Renal Tubular Epithelial Cells during Sepsis. BIOMED RESEARCH INTERNATIONAL 2020; 2020:2370253. [PMID: 32923478 PMCID: PMC7453242 DOI: 10.1155/2020/2370253] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 07/24/2020] [Accepted: 07/30/2020] [Indexed: 12/13/2022]
Abstract
The mechanism underlying sepsis-associated acute kidney injury (SAKI), which is an independent risk factor for sepsis-associated death, is unclear. A previous study indicates that during sepsis miR-21a-3p accumulates in renal tubular epithelial cells (TECs) as the mediator of inflammation and mediates TEC malfunction by manipulating its metabolism. However, the specific mechanism responsible for the accumulation of miR-21a-3p in TECs during sepsis is unrevealed. In this study, a cecal ligation and puncture- (CLP-) induced sepsis rat model and rat TEC line were used to elucidate the mechanism. Firstly, miR-21a-3p and Ago2 levels were found out to increase in both plasma and TECs during sepsis, and the increase of intracellular Ago2 and miR-21a-3p could be mitigated when Ago2 was either inactivated or downregulated in septic plasma. Moreover, membrane Nrp-1 expression of TECs was increased significantly during sepsis and Nrp-1 knockdown also mitigated the rise of both the intracellular Ago2 and miR-21a-3p levels in TECs incubated with septic plasma. Furthermore, it was revealed that Ago2 can be internalized by TECs mediated with Nrp-1 and this process had no effect on the intracellular content of miR-21a-3p. Both Ago2 and miR-21a-3p could bind to TECs derived Nrp-1 directly. Finally, it was determined that miR-21a-3p was internalized by TECs via Nrp-1 and Ago2 facilitated this process. Taken together, it can be concluded from our results that Ago2 binding miR-21a-3p from septic plasma can be actively internalized by TECs via Nrp-1 mediated cell internalization, and this mechanism is crucial for the rise of intracellular miR-21a-3p content of TECs during sepsis. These findings will improve our understanding of the mechanisms underlying SAKI and aid in developing novel therapeutic strategies.
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45
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SIKIAT1/miR-96/FOXA1 axis regulates sepsis-induced kidney injury through induction of apoptosis. Inflamm Res 2020; 69:645-656. [PMID: 32342116 DOI: 10.1007/s00011-020-01350-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 04/10/2020] [Accepted: 04/16/2020] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVE AND DESIGN Nowadays, sepsis-induced acute kidney injury (AKI) has gradually become a global problem for its high incidence and increasing mortality. Previous study has reported lncRNA ENST00000452391.1 in sepsis patients. However, its potential biological function and downstream molecular mechanism are still mysterious. METHODS AND RESULTS: Our study found that it was upregulated in sepsis-induced AKI patients, so it was identified as "sepsis-induced kidney injury associated transcript 1 (SIKIAT1)". We used lipopolysaccharide (LPS) stimulated HK-2 cells as an in vitro model to demonstrated that SIKIAT1 acts as a ceRNA for miR-96-3p to enhance FOXA1 expression and promote HK-2 cell apoptosis. CONCLUSION Therefore, it could be a potential biomarker and therapeutic target for sepsis-induced AKI in the development of disease.
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CXCL14 Overexpression Attenuates Sepsis-Associated Acute Kidney Injury by Inhibiting Proinflammatory Cytokine Production. Mediators Inflamm 2020; 2020:2431705. [PMID: 32317861 PMCID: PMC7150711 DOI: 10.1155/2020/2431705] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 01/22/2020] [Accepted: 03/13/2020] [Indexed: 12/20/2022] Open
Abstract
CXCL14 is a relatively novel chemokine with a wide spectrum of biological activities. The present study was designed to investigate whether CXCL14 overexpression attenuates sepsis-associated acute kidney injury (AKI) in mice. Sepsis model has been established by cecal ligation and puncture (CLP). CLP induced AKI in mice as assessed by increased renal neutrophil gelatinase-associated lipocalin (NGAL) expression and serum creatinine levels. We found that renal CXCL14 expression in the kidney was significantly decreased at 12 hours after CLP. Correlation analysis demonstrated a negative association between renal CXCL14 expression and AKI markers including serum creatinine and renal NGAL. Moreover, CXCL14 overexpression reduced cytokine (TNF-α, IL-6, and IL-1β) production and NGAL expression in the kidney and decreased serum creatinine levels. In vivo and in vitro experiments found that CXCL14 overexpression inhibited M1 macrophage polarization but increased M2 polarization. Together, these results suggest that CXCL14 overexpression attenuates sepsis-associated AKI probably through the downregulation of macrophages-derived cytokine production. However, further studies are required to elucidate the underlying mechanism.
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Yao W, Guo A, Han X, Wu S, Chen C, Luo C, Li H, Li S, Hei Z. Aerosol inhalation of a hydrogen-rich solution restored septic renal function. Aging (Albany NY) 2019; 11:12097-12113. [PMID: 31841441 PMCID: PMC6949055 DOI: 10.18632/aging.102542] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 11/19/2019] [Indexed: 12/29/2022]
Abstract
Sepsis-related acute kidney injury (AKI) is known to be caused by inflammation. We explored the renal protective effects of aerosol inhalation of a hydrogen-rich solution (HRS; hydrogen gas dissolved to saturation in saline) in a mouse model of septic AKI. Septic AKI was induced through 18 hours of cecal ligation and puncture. AKI occurred during the early stage of sepsis, as evidenced by increased blood urea nitrogen and serum creatinine levels, pathological changes, renal fibrosis and renal tubular epithelial cell apoptosis, accompanied by macrophage infiltration and M1 macrophage-associated pro-inflammatory cytokine (Il-6 and Tnf-α) generation in renal tissues. Aerosol inhalation of the HRS increased anti-inflammatory cytokine (Il-4 and Il-13) mRNA levels in renal tissues and promoted macrophage polarization to the M2 type, which generated additional anti-inflammatory cytokines (Il-10 and Tgf-β). Ultimately, aerosol inhalation of HRS protected the kidneys and increased survival among septic mice. HRS was confirmed to promote M2 macrophage polarization in lipopolysaccharide-stimulated RAW 264.7 cells. The TGF-β1 receptor inhibitor SB-431542 partly reversed the effects of HRS on renal function, fibrosis, tubular epithelial cell apoptosis and senescence in mice. Thus, HRS aerosol inhalation appears highly useful for renal protection and inflammation reduction in septic AKI.
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Affiliation(s)
- Weifeng Yao
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Anshun Guo
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China.,Department of Anesthesiology, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China
| | - Xue Han
- Department of Anesthesiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510000, China
| | - Shan Wu
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Chaojin Chen
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Chenfang Luo
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Haobo Li
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524023, China
| | - Shangrong Li
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Ziqing Hei
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
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Tan J, He J, Qin W, Zhao L. [Quercetin alleviates lipopolysaccharide-induced acute kidney injury in mice by suppressing TLR4/NF-κB pathway]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2019; 39:598-602. [PMID: 31140426 DOI: 10.12122/j.issn.1673-4254.2019.05.16] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
OBJECTIVE To investigate the protective effect of quercetin against lipopolysaccharide (LPS)- induced acute kidney injury (AKI) in mice and explore its mechanism. METHODS Forty male BALB/c mice were randomly divided into control group (with saline treatment), 15 mg/kg LPS group, and quercetin-treated groups with intragastric quercetin treatment (once daily for 3 consecutive days) at low (25 mg/kg) and high (50 mg/kg) dose prior to 15 mg/kg LPS injection. LPS was administered by intraperitoneally injection 1 after the last gavage of quercetin. The mice were sacrificed 24 h after LPS injection for analysis of kidney pathologies, blood urea nitrogen (BUN) and creatinine levels; serum levels of tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β) and IL-6 were detected by ELISA, and the expressions of Toll-like receptor-4 (TLR4), MyD88, TRAF-6 and NF-κBp65 in the kidney were detected by Western blotting. RESULTS Quercetin significantly lessened renal pathologies, lowered BUN and creatinine levels (P < 0.05) and inhibited TNF-α, IL-1β, and IL-6 production in mice with LPS-induced AKI (P < 0.05). Pretreatment with quercetin also significantly inhibited TLR4, MyD88, and TRAF-6 expressions and NF-κBp65 activation in the kidneys of the rats with LPS challenge (P < 0.05). CONCLUSIONS Quercetin pretreatment can protect mice against LPSinduced AKI by inhibiting TLR4/NF-κB signaling pathway.
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Affiliation(s)
- Jixiang Tan
- Department of Critical Care Medicine, First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Jin He
- Department of Nephrology, First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Wenyi Qin
- Department of Integrated Traditional Chinese and Western Medicine, First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Lin Zhao
- Department of Critical Care Medicine, First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
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A simple risk score for prediction of sepsis associated-acute kidney injury in critically ill patients. J Nephrol 2019; 32:947-956. [PMID: 31313123 DOI: 10.1007/s40620-019-00625-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Accepted: 06/18/2019] [Indexed: 02/05/2023]
Abstract
BACKGROUND Sepsis is common and frequently fatal condition in critically ill patients and is a major cause of acute kidney injury (AKI). In this retrospective study, we sought to develop a comprehensive risk score model of sepsis associated-AKI (SA-AKI). METHODS A total of 2617 patients were randomly assigned to a development (1554 patients) and a validation group (777 patients). The risk score model for SA-AKI was developed with multivariate regression analysis in development group and the model was further evaluated on validation group. RESULTS We identified 16 independent predictors of SA-AKI in development group (age ≥ 60 years, hypertension/coronary heart disease, diabetes, chronic kidney disease, heart failure, chronic obstructive pulmonary disease, acute severe pancreatitis, hypotension, hypoproteinemia, lactic acidosis, the length of stay in intensive care unit(ICU), 60 g/L<hemoglobin < 90 g/L, hemoglobin ≤ 60 g/L, and ≥ 2 failed organs. This model had excellent performance characteristics in validation cohort(c statistic 0.857, 95% CI 0.839-0.874). CONCLUSION The novel risk score model for SA-AKI in ICU can identify patients at high risk to develop AKI. Application of this model could help clinicians to stratify patients for primary prevention, surveillance and early therapeutic intervention to improve care and prognosis of sepsis patients in ICU.
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He J, Huang T, Zhao L. 3,3'‑Diindolylmethane mitigates lipopolysaccharide‑induced acute kidney injury in mice by inhibiting NOX‑mediated oxidative stress and the apoptosis of renal tubular epithelial cells. Mol Med Rep 2019; 19:5115-5122. [PMID: 31059037 PMCID: PMC6522920 DOI: 10.3892/mmr.2019.10178] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 03/29/2019] [Indexed: 12/11/2022] Open
Abstract
3,3′-Diindolylmethane (DIM) is a naturally derived indole compound found in the Brassica family of vegetables. DIM has several beneficial effects, including anti-cancer, anti-inflammatory and anti-angiogenic functions. However, the effects of DIM on acute kidney injury (AKI) stimulated by lipopolysaccharide (LPS) are poorly studied. In this present study, male BALB/c mouse models of AKI were established using intraperitoneal injections of 10 mg/kg LPS. DIM (40 mg/kg) was administered intraperitoneally 24 and 2 h before LPS exposure. The results indicated that DIM significantly mitigated histopathological changes in the kidneys and improved the levels of blood urea nitrogen and serum creatinine. DIM also suppressed the LPS-induced production of reactive oxygen species and cell apoptosis. Furthermore, DIM treatment significantly decreased the expression of NADPH oxidase 2 (NOX2) and NOX4 in LPS-treated mice. Therefore, DIM may exert its renoprotective actions by inhibiting NOX-mediated oxidative stress and the apoptosis of renal tubular epithelial cells.
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Affiliation(s)
- Jin He
- Department of Nephrology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Tao Huang
- Department of Emergency, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Lin Zhao
- Department of Emergency, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
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