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Zhang Y, Ma R, Wang J. Protective effects of fargesin on cadmium-induced lung injury through regulating aryl hydrocarbon receptor. J Biochem Mol Toxicol 2022; 36:e23197. [PMID: 35983679 DOI: 10.1002/jbt.23197] [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: 04/13/2022] [Revised: 07/04/2022] [Accepted: 08/05/2022] [Indexed: 11/12/2022]
Abstract
Fragesin, a traditional Chinese medicine, has been shown to exert anti-inflammatory effect. The aim of this study was to figure out the possible effectiveness of the fargesin, and to invest the mechanisms by which it works in the cadmium-induced lung injury in mice. Fargesin was given 1 h before cadmium treatment for 7 days. Then, the bronchoalveolar lavage fluid (BALF) were harvested to test inflammatory cells and pro-inflammatory cytokine production. Lung histopathological changes, myeloperoxidase (MPO) activity, and aryl hydrocarbon receptor (AhR) and nuclear factor kappa B (NF-κB) activation were measured. Fargesin dose-dependently reduced inflammatory cells and pro-inflammatory cytokines in BALF, improved lung histopathological injury, and inhibited lung wet/dry ratio and MPO activity. Furthermore, fargesin inhibited cadmium-induced NF-κB activation. In addition, fargesin was found to increase AhR expression. In conclusion, fargesin attenuates cadmium-induced lung injury may be via activating AhR, which subsequently suppressing the inflammatory response.
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Affiliation(s)
- Yuting Zhang
- Department of Ophthalmology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Rui Ma
- Department of Pharmacy, Affiliated Hospital of Shandong University of Traditional Chinese, Jinan, China
| | - Juan Wang
- Department of Otorhinolaryngology, Qilu Hospital of Shandong University, Jinan, China.,NHC Key Laboratory of Otorhinolaryngology, Shandong University, Jinan, China
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Lu S, Wu X, Xin S, Zhang J, Lin H, Miao Y, Li Y. Knockdown of circ_0001679 alleviates lipopolysaccharide-induced MLE-12 lung cell injury by regulating the miR-338-3p/ mitogen-activated protein kinase 1 axis. Bioengineered 2022; 13:5803-5817. [PMID: 35264058 PMCID: PMC8973724 DOI: 10.1080/21655979.2022.2034564] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The upregulation of circ_0001679 was reported in lipopolysaccharide (LPS)-induced lung injury mouse model, but its functional roles and mechanisms in LPS-induced lung injury remain to be investigated. In this study, we aimed to explore the potential role of circ_0001679 in septic acute lung injury. We initially established an in vitro lung cell injury model using LPS-treated MLE-12 cells. siRNAs targeting circRNA_0001679 were employed to stably knock down circRNA_0001679, followed by functional assays to investigate the effect of circRNA_0001679 silencing. The levels of inflammatory cytokines such as IL-6, IL-β and TNF-α (Tumor necrosis factor-α) were detected by ELISA (Enzyme-linked immunosorbent assay). Meanwhile, protein levels of Bcl-2, cleaved-caspase 3, Bax, and MAPK1 (Mitogen-Activated Protein Kinase 1) proteins expression level were measured by Western blot. We found that Circ_0001679 was upregulated in LPS-induced MLE-12 cells, and silencing circ_0001679 attenuated the growth inhibition and suppressed apoptosis induced by LPS. Circ_0001679 knockdown also lowered levels of IL-6, IL-β and TNF-α, and prevent the activation of cleaved-caspase 3 protein. We further revealed that circ_0001679 functioned as a sponge of miR-338-3p to negatively regulate miR-338-3p activity. miR-338-3p downregulated its downstream target MAPK1, while the upregulation of circ_0001679 maintained a high-level expression of MAPK1 by suppressing miR-338-3p. Collectively, our study indicates that circ_0001679/miR-338-3p/MAPK1 axis may play an important role in the pathogenesis of acute lung injury (ALI).
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Affiliation(s)
- Shenggui Lu
- Intensive Care Unit, The 910th Hospital of People's Liberation Army Joint Logistic Support Force, Quanzhou, China
| | - Xinmiao Wu
- Department of Emergency, Hospital of Traditional Chinese Medicine, Quanzhou, Fujian Provice, China
| | - Shuai Xin
- Department of Anesthesiology, The 910th Hospital of People's Liberation Army Joint Logistic Support Force, China
| | - Jing Zhang
- Intensive Care Unit, The 910th Hospital of People's Liberation Army Joint Logistic Support Force, Quanzhou, China
| | - Hanying Lin
- Intensive Care Unit, The 910th Hospital of People's Liberation Army Joint Logistic Support Force, Quanzhou, China
| | - Yu Miao
- Department of Nursing, The 910th Hospital of People's Liberation Army Joint Logistic Support Force, Quanzhou, Fujian, China
| | - Yixin Li
- Intensive Care Unit, The 910th Hospital of People's Liberation Army Joint Logistic Support Force, Quanzhou, China
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The Protective Mechanism of Dexmedetomidine on Renal in Hemorrhagic Shock. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:6394544. [PMID: 35186114 PMCID: PMC8856797 DOI: 10.1155/2022/6394544] [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: 12/30/2021] [Revised: 01/17/2022] [Accepted: 01/18/2022] [Indexed: 11/26/2022]
Abstract
Objective To explore the protective effect of dexmedetomidine on renal function in patients with hemorrhagic shock and its possible mechanism. Methods Seventy patients with traumatic hemorrhagic shock requiring surgical treatment were randomly divided into the control group (group C) and the dexmedetomidine group (group D), with 35 patients in each group. Patients in both groups were actively treated with volumetric resuscitation while surgical hemostasis. Group D was given dexmedetomidine 0.5 μg/kg before skin incision after anesthesia induction, for 10 min, followed by intravenous infusion at a rate of 0.4 μg·kg−1·h−1 until 30 min before surgery, and group C was given equal volume of normal saline before skin resection (H1). Venous blood was collected 2 h (H2) and 4 h (H4) after skin resection, and plasma levels of BUN, creatinine (SCr), lipid peroxides (MDA), and inflammatory mediators IL-6 and IL-8 were measured on the 1st and 2nd day after surgery. Results Compared with H1, BUN and SCr levels had no significant difference at 2 h and 4 h after skin resection but significantly decreased at 1 and 2 postoperative days (D1) (P < 0.05). There were significant differences in MDA, IL-6, and IL-8 at 2 and 4 h after skin resection (P < 0.05), but there were no significant differences at 1 day after surgery (D1) and 2 days after surgery (D2). Compared with group C, the levels of MDA, IL-6, and IL-8 in group U were significantly decreased at 2 h and 4 h after skin resection (P < 0.05), and the levels of BUN and SCr in group U were significantly decreased at 1 and 2 days after skin resection (P < 0.05). Conclusion Dexmedetomidine can effectively inhibit the release of oxygen free radicals in the shock stage and the shock recovery stage in patients with hemorrhagic trauma shock and has a protective effect on renal function.
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Wang S, Tang Z, Zheng X, Deng J, Wang Z. Efficacy of human immunoglobulin injection and effects on serum inflammatory cytokines in neonates with acute lung injury. Exp Ther Med 2021; 22:931. [PMID: 34306200 PMCID: PMC8281239 DOI: 10.3892/etm.2021.10363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 10/15/2020] [Indexed: 12/02/2022] Open
Abstract
The present study aimed to explore the efficacy of intravenous immunoglobulin (IVIG) injection in neonates with acute lung injury (ALI) and assess its effects on serum inflammatory cytokine levels. The research subjects were 140 neonates with ALI who were evenly distributed into a control group (COG) and a study group (STG). The COG patients were treated routinely, whereas patients in the STG were administered IVIG in addition to the standard treatment received by the COG. The arterial partial pressure of oxygen (PaO2), PaO2/fraction of inspired oxygen (FIO2), mechanical ventilation time and hospitalization time were compared between the two groups. ELISA was used to determine the levels of interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) in the patients before treatment and at 12, 24 and 36 h after treatment. The Kaplan-Meier method was used to analyze the survival of the patients, including their survival for 30 days after treatment. The patients were divided into high and low cytokine expression groups based on their mean expression levels of serum IL-6 and TNF-α before treatment. After treatment, PaO2 and PaO2/FiO2 were significantly higher and mechanical ventilation and hospitalization time were reduced in the STG in comparison with the COG (all P<0.001). At 12, 24 and 36 h after treatment, serum IL-6 and TNF-α levels in the STG were lower than those in the COG (both P<0.05). The 30-day survival rate after treatment was not significantly different between the two groups (P>0.05). The 30-day survival rate in the high IL-6 and high TNF-α expression COG was lower than that in the low IL-6 and low TNF-α expression COG (both P<0.05). The results of the present study indicate that IVIG may improve pulmonary gas exchange, shorten the course of disease and reduce the inflammatory response in neonates with ALI.
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Affiliation(s)
- Shaohua Wang
- Neonatal Intensive Care Unit, Women and Children Health Institute of Futian, University of South China, Shenzen, Guangdong 518033, P.R. China
| | - Zanmei Tang
- Neonatal Intensive Care Unit, Women and Children Health Institute of Futian, University of South China, Shenzen, Guangdong 518033, P.R. China
| | - Xuemei Zheng
- Neonatal Intensive Care Unit, Women and Children Health Institute of Futian, University of South China, Shenzen, Guangdong 518033, P.R. China
| | - Jian Deng
- Neonatal Intensive Care Unit, Women and Children Health Institute of Futian, University of South China, Shenzen, Guangdong 518033, P.R. China
| | - Zhangxing Wang
- Neonatal Intensive Care Unit, Longhua People's Hospital, Shenzhen, Guangdong 518109, P.R. China
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Schutte SC, Evdokiou A, Satish L. Protease levels are significantly altered in pediatric burn wounds. Burns 2020; 46:1603-1611. [PMID: 32482377 DOI: 10.1016/j.burns.2020.04.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 04/24/2020] [Accepted: 04/28/2020] [Indexed: 10/24/2022]
Abstract
Burn wounds contain high levels of protease activity due to the need to remodel the damaged extracellular matrix proteins. While necessary, excessive protease activity can lead to improper wound healing and is associated with increased contraction and fibrosis. No studies to date have investigated the expression changes of all the collagenases and elastases in burn wounds. The present study compares gene expression changes and changes in collagenase and elastase activity between burn wound eschar and normal skin in a pediatric population. Deidentified pediatric tissues were used for these experiments. Burn wound tissue was excised as part of normal standard care within a week from injury; normal skin was removed during elective plastic surgery procedures. RNA-sequencing was performed and significant results were confirmed with qRT-PCR. Activity assays showed a significant increase in both collagenase and elastase activity in the burn wound tissue compared to the normal skin. Western blotting and substrate zymography of tissue homogenates evaluated the results at the protein levels. Four elastases and three collagenases were determined to be significantly upregulated in the wound tissues by both RNA-sequencing and qRT-PCR. Cathepsin V was the only protease that was significantly downregulated. All but one metalloproteinase studied was significantly upregulated. None of the serine proteases were significantly altered in the wound tissues. In conclusion, matrix metalloproteinases appear to be the most highly elevated proteases after a pediatric burn wound injury, at least within the first 3-7 days. The data warrant further investigation into the effects of MMPs on burn wound healing.
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Affiliation(s)
- Stacey C Schutte
- Department of Research, Shriners Hospitals for Children-Cincinnati, 3229 Burnet Avenue, Cincinnati, OH 45229, USA; Department of Biomedical Engineering, University of Cincinnati, 2901 Woodside Drive, Cincinnati, OH 45221, USA.
| | - Alexander Evdokiou
- Department of Research, Shriners Hospitals for Children-Cincinnati, 3229 Burnet Avenue, Cincinnati, OH 45229, USA
| | - Latha Satish
- Department of Research, Shriners Hospitals for Children-Cincinnati, 3229 Burnet Avenue, Cincinnati, OH 45229, USA; Department of Pathology and Laboratory Medicine, University of Cincinnati School of Medicine, 234 Goodman Street, Cincinnati, OH 45219, USA
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Mitochondrial Division Inhibitor 1 Attenuates Mitophagy in a Rat Model of Acute Lung Injury. BIOMED RESEARCH INTERNATIONAL 2019; 2019:2193706. [PMID: 31205936 PMCID: PMC6530225 DOI: 10.1155/2019/2193706] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Accepted: 04/17/2019] [Indexed: 01/15/2023]
Abstract
The regulation of intracellular mitochondria degradation is mediated by mitophagy. While studies have shown that mitophagy can lead to mitochondrial dysfunction and cell damage, the role of Mdivi-1 and mitophagy remains unclear in acute lung injury (ALI) pathogenesis. In this study, we demonstrated that Mdivi-1, which is widely used as an inhibitor of mitophagy, ameliorated acute lung injury assessed by HE staining, pulmonary microvascular permeability assay, measurement of wet/dry weight (W/D) ratio, and oxygenation index (PaO2/FiO2) analysis. Then, the mitophagy related proteins were evaluated by western blot. The results indicated that LPS-induced activation of mitophagy was inhibited by Mdivi-1 treatment. In addition, we found that Mdivi-1 protected A549 cells against LPS-induced mitochondrial dysfunction. We also found that Mdivi-1 reduced pulmonary cell apoptosis in the LPS-challenged rats and protected pulmonary tissues from oxidative stress (represented by the content of superoxide dismutase, malondialdehyde and lipid peroxides in lung). Moreover, Mdivi-1 treatment ameliorated LPS-induced lung inflammatory response and cells recruitment. These findings indicate that Mdivi-1 mitigates LPS-induced apoptosis, oxidative stress, and inflammation in ALI, which may be associated with mitophagy inhibition. Thus, the inhibition of mitophagy may represent a potential therapy for treating ALI.
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Pharmacological Effects of Verticine: Current Status. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:2394605. [PMID: 30956677 PMCID: PMC6431433 DOI: 10.1155/2019/2394605] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 02/18/2019] [Accepted: 02/27/2019] [Indexed: 12/14/2022]
Abstract
Verticine is the major bioactive constituent of Fritillaria as a kind of Traditional Chinese Medicine. Pharmacological researches have reported various benefits of verticine, including anticancer, anti-inflammatory, protecting against acute lung injury, tracheobronchial relaxation, antitussive, expectorant, sedative, and analgesic activities, in addition to inhibiting proliferation of cultured orbital fibroblast, angiotensin converting enzyme (ACE), and acetylcholinesterase (AChE) and inhibiting hERG potassium channels. The underlying mechanisms of verticine are still under investigation. This review will comprehensively summarize the metabolism, biological activities, and possible mechanism of verticine.
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Zhang M, Zhang YH, Fu HQ, Zhang QM, Wang TL. Ulinastatin May Significantly Improve Postoperative Cognitive Function of Elderly Patients Undergoing Spinal Surgery by Reducing the Translocation of Lipopolysaccharide and Systemic Inflammation. Front Pharmacol 2018; 9:1007. [PMID: 30356711 PMCID: PMC6189321 DOI: 10.3389/fphar.2018.01007] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 08/17/2018] [Indexed: 12/01/2022] Open
Abstract
Background: Studies have shown that perioperative inflammatory response is one of the important factors that caused postoperative cognitive dysfunction (POCD). Ulinastatin is a broad-spectrum protease inhibitor that inhibits inflammatory. We investigated the effects of ulinastatin on inflammatory response and early postoperative cognitive function in elderly patients undergoing spinal surgery. Methods: This clinical trial was approved by the Xuanwu Hospital Ethical Committee (Registration number: ChiCTR-IPR-16008931). Sixty elderly patients undergoing elective spinal surgery with American Society of Anesthesiologists (ASA) status of I–II were randomized into ulinastatin and control groups; total intravenous anesthesia was performed. The elderly patients in ulinastatin group underwent intravenous infusion of ulinastatin 10,000 units/kg following anesthesia induction and before surgical incision, and 5000 units/kg on post-operative days 1 and 2. Cognitive function was determined with Montreal Cognitive Assessment (MOCA) test preoperatively and on post-operative day 7 by a neurologist. Serum lipopolysaccharide (LPS), interleukin-6 (IL-6), C-reactive protein (CRP), and matrix metalloprotease-9 (MMP-9) concentration levels were measured at baseline, the end of surgery, and on post-operative days 1 and 3. Results: All elderly patients completed the study. Ulinastatin infusion significantly reduced the incidence of POCD in elderly patients undergoing spine surgery (ulinastatin group 16% vs. control group 43%, χ2 = 5.079, P = 0.024, P < 0.05). The elderly patients in ulinastatin group exhibited lower serum LPS, IL-6, CRP, and MMP-9 concentrations, as well as a shortened peak value duration, compared with those in the control group following surgery (P < 0.05). Conclusion: Systemic inflammation and translocation of LPS were inhibited by the infusion of ulinastatin in elderly patients undergoing spinal surgery. The anti-inflammation intervention with ulinastatin can significantly improve the elderly patients’ postoperative cognitive function.
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Affiliation(s)
- Min Zhang
- Department of Anesthesiology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Yan-Hua Zhang
- Department of Anesthesiology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Hui-Qun Fu
- Department of Anesthesiology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Qing-Ming Zhang
- Department of Orthopedics, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Tian-Long Wang
- Department of Anesthesiology, Xuanwu Hospital, Capital Medical University, Beijing, China
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Liu W, Liu Z, Zhang W, Cai S. Ulinastatin protects the lungs of COPD rats through the HMGB1/TLR4 signaling pathway. Oncol Lett 2018; 16:4057-4063. [PMID: 30128028 DOI: 10.3892/ol.2018.9123] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Accepted: 02/12/2018] [Indexed: 12/12/2022] Open
Abstract
The present study aimed to investigate the protective mechanism of ulinastatin against lung injury. Rat models with chronic obstructive pulmonary disease (COPD) were used to provide guidance for the medical treatment of this disease. The rats were divided into three groups: A control group, a model group and an experimental group (each, n=10). With the exception of the control group, all of the rats were prepared as models of COPD, using the composite molding method of smoking and intratracheal instillation of lipopolysaccharide. The rats in the model group all received a conventional treatment, while the rats in the experimental group received ulinastatin. A small animal lung function detector was used to examine lung function. The forced expiratory volume/sec (FEV) was negatively correlated with the protein expression levels of Toll-like receptor 4 (TLR4) and high mobility group box protein 1 (HMGB1). Real-time fluorescence quantitative polymerase chain reaction and western blot analyses were used to detect TLR4, MyD88 (myeloid differentiation factor 88), TRAF-6 (TNF receptor-associated factor 6), LOX-1 (lectin-type oxidized LDL receptor 1) and HMGB1 mRNA, along with their protein expression levels. The lung function of rats in the model group was significantly decreased compared with in the control group (P<0.05). In the experimental group the lung function was significantly greater, when compared with in the model group; however, it remained lower than in the control group. The mRNA and protein expression levels of TLR4, MyD88, TRAF-6, LOX-1 and HMGB1 were significantly higher in the model group than in the control and experimental groups; however, levels in the experimental group were significantly higher when compared with in the control group (P<0.05). The TLR4 and HMGB1 expression levels were positively correlated in all groups, which indicated involvement of the HMGB1/TLR4 signaling pathway. The FEV was negatively correlated with the protein expression levels of TLR4 and HMGB1. Thus, the protective effect of ulinastatin in the lungs of rats with COPD is associated with changes in the HMGB1/TLR4 signaling pathway.
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Affiliation(s)
- Wei Liu
- Chronic Airway Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China.,Department of Respiratory Medicine, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan 410005, P.R. China
| | - Zhiguang Liu
- Department of Respiratory Medicine, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan 410005, P.R. China
| | - Weidong Zhang
- Department of Respiratory Medicine, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan 410005, P.R. China
| | - Shaoxi Cai
- Chronic Airway Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
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Remote Burn Injury Increases Pulmonary Histone Deacetylase 1 and Reduces Histone Acetylation. J Burn Care Res 2018; 37:321-7. [PMID: 26629657 DOI: 10.1097/bcr.0000000000000318] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Dermal burn injury causes profound physiological derangements. Respiratory failure is a primary cause of morbidity and mortality after burn injury, in part, because of excessive and prolonged release of local and systemic proinflammatory mediators. Clinical and preclinical evidence suggests histone deacetylases (HDACs) are key mediators of inflammatory responses. The study objective was to explore the effects of dermal burn injury on pulmonary HDAC activity, identify specific lung HDAC(s) altered by burn, and characterize histone lysine acetylation status. Mice were subjected to a 15% total body surface area scald burn or a sham injury and euthanized 24 hours later. Whole lungs were harvested, or alveolar macrophages were isolated from bronchoalveolar lavage fluid. HDAC specific activity assays were performed, Western blots were run to analyze HDACs1, 2, 3, 4, and 10 or histone lysine acetylation levels, and HDAC1 and phosphorylated-HDAC1 levels and localization were examined by immunofluorescence. Burned mice had higher HDAC specific activity and increased HDAC1 levels compared with controls, but levels of other HDACs were comparable between groups. Burn injury increased levels of HDAC1 and phosphorylated-HDAC1 in bronchioles and alveolar sacs and was associated with global and specific diminished levels of histone H3 and histone H4 lysine acetylation. Our analyses reveal that pulmonary inflammation after burn injury may be modulated by epigenetic mechanisms involving HDACs because HDAC activity, HDAC1 expression and activity, and downstream histone acetylation were all altered after burn. Future studies will explore the role of HDAC inhibitors in reversing inflammatory defects and may ultimately lead to new treatment interventions for burn patients.
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Ulinastatin inhibits renal tubular epithelial apoptosis and interstitial fibrosis in rats with unilateral ureteral obstruction. Mol Med Rep 2017; 16:8916-8922. [PMID: 28990075 PMCID: PMC5779974 DOI: 10.3892/mmr.2017.7692] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Accepted: 09/05/2017] [Indexed: 02/07/2023] Open
Abstract
The effect of ulinastatin (UTI) on renal tubular epithelial apoptosis and interstitial fibrosis in rats with unilateral ureteral obstruction (UUO) was investigated. A total of 18 male Wistar rats were randomly divided into the following 3 groups: The Sham group (n=6), the UUO group (n=6), and the UTI group (n=6). In the UUO and UTI groups, the left ureter was ligated to establish a UUO model. Starting from day 1 after surgery, an intervention treatment was performed using normal saline (1 ml/kg/d) and UTI (40,000 unit/kg/d). On day 7 after surgery, 6 rats from each group were sacrificed. In the Sham group, the left ureter was only freed, not ligated; after 7 days of abdominal closure, all of the rats were sacrificed. Blood samples were collected prior to sacrificing the animals to measure the blood urea nitrogen (BUN) and serum creatinine (Scr). The incidence of renal interstitial lesions on the obstruction side was observed by hematoxylin and eosin, and Masson staining. Terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) staining, and immunohistochemical detection of apoptosis regulator Bax (Bax), apoptosis regulator Bcl-2 (Bcl-2) and caspase-3 were performed to observe the presence of renal tubular epithelial cell apoptosis. The UTI did not have a significant influence on the mouse BUN and Scr levels in any of the groups (P>0.05). Compared with that in the Sham group, renal tissue injury in the UUO group was significantly aggravated with renal tubular dilation, epithelial cell atrophy, renal interstitial inflammatory cell infiltration and fibrous tissue hyperplasia (P<0.01). Furthermore, the renal tubular epithelial TUNEL+ cell number and Bax and caspase-3 levels were increased, and the expression of Bcl-2 was decreased (P<0.01). Following the UTI treatment, the renal interstitial injury at the obstruction side was significantly attenuated (P<0.05), the renal tubular epithelial TUNEL+ cell number, and Bax and caspase-3 levels significantly decreased, and the expression of Bcl-2 was restored (P<0.05). UTI inhibited renal tubular epithelial apoptosis and interstitial fibrosis in UUO rats.
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Polydeoxyribonucleotide Ameliorates Lipopolysaccharide-Induced Lung Injury by Inhibiting Apoptotic Cell Death in Rats. Int J Mol Sci 2017; 18:ijms18091847. [PMID: 28837114 PMCID: PMC5618496 DOI: 10.3390/ijms18091847] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 08/21/2017] [Accepted: 08/21/2017] [Indexed: 12/27/2022] Open
Abstract
Lung injury is characterized by diffuse lung inflammation, alveolar-capillary destruction, and alveolar flooding, resulting in respiratory failure. Polydexyribonucleotide (PDRN) has an anti-inflammatory effect, decreasing inflammatory cytokines, and suppressing apoptosis. Thus, we investigated its efficacy in the treatment of lung injury, which was induced in rats using lipopolysaccharide (LPS). Rats were randomly divided into three groups according to sacrifice time, and each group split into control, lung injury-induced, and lung injury-induced + PDRN-treated groups. Rats were sacrificed 24 h and 72 h after PDRN administration, according to each group. Lung injury was induced by intratracheal instillation of LPS (5 mg/kg) in 0.2 mL saline. Rats in PDRN-treated groups received a single intraperitoneal injection of 0.3 mL distilled water including PDRN (8 mg/kg), 1 h after lung injury induction. Percentages of terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL)-positive, cleaved caspase-3-, -8-, and -9-positive cells, the ratio of Bcl-2-associated X protein (Bax) to B-cell lymphoma 2 (Bcl-2), and expressions of inflammatory cytokines (tumor necrosis factor-α, interleukin-6) were decreased by PDRN treatment in the LPS-induced lung injury rats. Therefore, treatment with PDRN reduced lung injury score. This anti-apoptotic effect of PDRN can be ascribed to the enhancing effect of PDRN on adenosine A2A receptor expression. Based on these results, PDRN might be considered as a new therapeutic agent for the treatment of lung injury.
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Liu W, Pang G, Wang S, Sun A. Protective effect of ulinastatin on severe pulmonary infection under immunosuppression and its molecular mechanism. Exp Ther Med 2017; 14:3583-3588. [PMID: 29042952 PMCID: PMC5639405 DOI: 10.3892/etm.2017.4993] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 08/16/2017] [Indexed: 02/04/2023] Open
Abstract
The objective of the present study was to investigate the protective effect of ulinastatin on severe pulmonary infection under immunosuppression, and its molecular mechanism. Mice were treated with methylprednisolone and lipopolysaccharide (LPS) to establish the model of severe pulmonary infection under immunosuppression. Mice were randomly divided into group A (model group; treated with equal volumes of saline), group B (treated with 1×105 U/kg ulinastatin), and group C (normal control group). Bronchoalveolar lavage fluid (BALF) was collected, and the concentrations of cytokines in BALF were measured by enzyme-linked immunosorbent assay (ELISA). Pathological changes in lung tissues were observed by hematoxylin and eosin (H&E) staining. The mRNA levels of M1 and M2 macrophage markers in lung tissues were detected by real-time polymerase chain reaction (PCR). Specific protein levels in lung tissues were measured by western blotting. Apoptosis in lung tissues was detected by the terminal-deoxynucleoitidyl transferase mediated nick end-labeling (TUNEL) method. The concentrations of TNF-α, IL-6, and IL-1β in BALF, the mRNA levels of the three M1 macrophage markers, and the protein levels of p-Janus Kinase 2 (p-JAK2), p-signal transducer and activator of transcription-3 (p-STAT-3), cleaved caspase-9, and cleaved poly-ADP-ribose polymerase (PARP), and the number of apoptotic cells in lung tissues in group A were significantly higher than those in groups B and C (P<0.05), whereas the concentrations of IL-4, IL-10, and IL-13 and the mRNA levels of the three M2 macrophage markers were significantly lower than those in groups B and C (P<0.05). Immunofluorescence showed that the nuclei of lung epithelial macrophages in group A became smaller and moved towards the side of nuclear membranes. In conclusion, ulinastatin can improve the inflammatory response caused by severe infection under immunosuppression, which balances the inflammatory microenvironment and inhibits apoptosis at least partially through inhibiting JAK2/STAT-3 and/or caspase pathway activity, ultimately playing a role in lung protection.
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Affiliation(s)
- Wenshuai Liu
- Intensive Care Unit, Dezhou People's Hospital, Dezhou, Shandong 253000, P.R. China
| | - Guozhong Pang
- Intensive Care Unit, Dezhou People's Hospital, Dezhou, Shandong 253000, P.R. China
| | - Shengyan Wang
- Intensive Care Unit, Dezhou People's Hospital, Dezhou, Shandong 253000, P.R. China
| | - Aiqin Sun
- Intensive Care Unit, Dezhou People's Hospital, Dezhou, Shandong 253000, P.R. China
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Intraintestinal administration of ulinastatin protects against sepsis by relieving intestinal damage. J Surg Res 2017; 211:70-78. [DOI: 10.1016/j.jss.2016.11.061] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 11/18/2016] [Accepted: 11/30/2016] [Indexed: 11/22/2022]
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Effects of Ulinastatin on Perioperative Inflammatory Response and Pulmonary Function in Cardiopulmonary Bypass Patients. Am J Ther 2017; 23:e1680-e1689. [PMID: 26938752 DOI: 10.1097/mjt.0000000000000243] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The aim of this study was to investigate whether ulinastatin (UTL) has protective effects on perioperative proinflammatory cytokines and lung injury in cardiopulmonary bypass (CPB) patients. The study included 60 patients undergoing CPB who were randomly divided into a UTL group and a control group. Blood routine examination and inflammatory cytokines concentrations were detected after anesthetic induction (T1), immediately after aortic valve opening (T2), and 4 (T3) and 24 (T4) hours after weaning from CPB. Flow cytometry was used to detect TLR4 and HSP70 expressions. Arterial blood gas and respiratory function were analyzed at the same time points. Compared with the control group, the levels of IL-2, IL-8, TNF-α, NE, TLR4, PA - aDO2, and RI at T2 were significantly lower, whereas HSP70, PaO2, OI, Cd, and Cs were higher in the UTL group (all P < 0.05). Relative to the control group at T3, white blood cell count, TLR4, IL-2, IL-6, IL-8, TNF-α, NE, and RI decreased significantly, whereas IL-10, HSP70, PaO2, OI, and Cs increased in the UTL group (all P < 0.05). At T4, IL-2, IL-6, IL-8, TNF-α, TLR4, and PaCO2 in the UTL group were significantly lower, and PaO2, IL-10, HSP70, and Cs were higher than in the control group (all P < 0.05). Our data show strong evidence that UTL suppresses proinflammatory cytokine elevation and upregulates release of anti-inflammatory mediators, reducing pulmonary injury and improving pulmonary function after CPB.
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Ulinastatin attenuates pulmonary endothelial glycocalyx damage and inhibits endothelial heparanase activity in LPS-induced ARDS. Biochem Biophys Res Commun 2016; 478:669-75. [PMID: 27498004 DOI: 10.1016/j.bbrc.2016.08.005] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Accepted: 08/02/2016] [Indexed: 11/22/2022]
Abstract
Acute respiratory distress syndrome (ARDS) is a syndrome of acute respiratory failure characterized by major pathologic mechanisms of increased microvascular permeability and inflammation. The glycocalyx lines on the endothelial surface, which determines the vascular permeability, and heparanase play pivotal roles in the degradation of heparan sulfate (HS). HS is the major component of the glycocalyx. The aim of this study is to examine the effects of Ulinastatin (UTI) on vascular permeability and pulmonary endothelial glycocalyx dysfunction induced by lipopolysaccharide (LPS). In our study, C57BL/6 mice and human umbilical vein endothelial cells were stimulated with LPS to induce injury models. After 6 h of LPS stimulation, pulmonary pathological changes, pulmonary edema, and vascular permeability were notably attenuated by UTI. UTI inhibited LPS-induced endothelial glycocalyx destruction and significantly decreased the production of HS as determined by ELISA and immunofluorescence. UTI also reduced the active form of heparanase (50 kDa) expression and heparanase activity. Moreover, lysosome pH was investigated because heparanase (65 kDa) can be reduced easily in its active form at 50 kDa in a low pH environment within lysosome. Results showed that UTI could inhibit LPS-induced pH elevation in lysosome. In conclusion, UTI protects pulmonary endothelial glycocalyx integrity and inhibits heparanase activity during LPS-induced ARDS.
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Bai X, Fan L, He T, Jia W, Yang L, Zhang J, Liu Y, Shi J, Su L, Hu D. SIRT1 protects rat lung tissue against severe burn-induced remote ALI by attenuating the apoptosis of PMVECs via p38 MAPK signaling. Sci Rep 2015; 5:10277. [PMID: 25992481 PMCID: PMC4445725 DOI: 10.1038/srep10277] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Accepted: 04/08/2015] [Indexed: 12/14/2022] Open
Abstract
Silent information regulator type-1 (SIRT1) has been reported to be involved in the
cardiopulmonary protection. However, its role in the pathogenesis of burn-induced
remote acute lung injury (ALI) is currently unknown. The present study aims to
investigate the role of SIRT1 in burn-induced remote ALI and the involved signaling
pathway. We observed that SIRT1 expression in rat lung tissue after burn injury
appeared an increasing trend after a short period of suppression. The upregulation
of SIRT1 stimulated by resveratrol exhibited remission of histopathologic changes,
reduction of cell apoptosis, and downregulation of pro-inflammatory cytokines in rat
pulmonary tissues suffering from severe burn. We next used primary pulmonary
microvascular endothelial cells (PMVECs) challenged by burn serum (BS) to simulate
in vivo rat lung tissue after burn injury, and found that BS
significantly suppressed SIRT1 expression, increased cell apoptosis, and activated
p38 MAPK signaling. The use of resveratrol reversed these effects, while knockdown
of SIRT1 by shRNA further augmented BS-induced increase of cell apoptosis and
activation of p38 MAPK. Taken together, these results indicate that SIRT1 might
protect lung tissue against burn-induced remote ALI by attenuating PMVEC apoptosis
via p38 MAPK signaling, suggesting its potential therapeutic effects on the
treatment of ALI.
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Affiliation(s)
- Xiaozhi Bai
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Lei Fan
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Ting He
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Wenbin Jia
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Longlong Yang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Jun Zhang
- Department of Burn and Plastic Surgery, No.205 Hospital of Chinese People's Liberation Army, Jinzhou, Liaoning, China
| | - Yang Liu
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Jihong Shi
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Linlin Su
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Dahai Hu
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
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Shu Y, Li R, Yang Y, Dai Y, Qiu W, Chen Y, Zhao Z, Lu Z, Hu X. Urinary trypsin inhibitor levels are reduced in cerebrospinal fluid of multiple sclerosis and neuromyelitis optica patients during relapse. Neurochem Int 2014; 81:28-31. [PMID: 25555815 DOI: 10.1016/j.neuint.2014.12.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2014] [Revised: 12/10/2014] [Accepted: 12/22/2014] [Indexed: 12/18/2022]
Abstract
BACKGROUND Neutrophil-mediated inflammation plays an important role in the pathogenesis of multiple sclerosis (MS) and neuromyelitis optica (NMO). Concentrations of urinary trypsin inhibitor (UTI) have attracted attention as a useful index of the status of inflammatory response. Evidence suggests serum UTI levels are increased in some inflammatory diseases, but little attention has been paid to cerebrospinal fluid (CSF) levels of UTI. OBJECTIVE To measure CSF concentration of UTI and determine its relationship with disease activity in MS and NMO. METHODS CSF UTI was measured by an enzyme-linked immunosorbent assay in 18 MS patients, 28 NMO patients and eight controls. RESULTS CSF UTI concentrations in MS and NMO groups were both significantly lower than those in controls. Expanded disability status scale scores of MS and NMO revealed a trend of increased disease disability with decreased CSF UTI level. The CSF UTI concentrations were not significantly associated with CSF white blood cell counts, total protein, glucose and chlorine concentrations in MS and NMO subgroups. CONCLUSIONS Our results indicate a reduced UTI level in CSF of MS and NMO patients. The levels were associated with the severity of the two demyelinating diseases during relapse.
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Affiliation(s)
- Yaqing Shu
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510630, China
| | - Rui Li
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510630, China
| | - Yu Yang
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510630, China
| | - Yongqiang Dai
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510630, China
| | - Wei Qiu
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510630, China
| | - Ying Chen
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510630, China
| | - Zhihua Zhao
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510630, China
| | - Zhengqi Lu
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510630, China
| | - Xueqiang Hu
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510630, China.
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Bao P, Zhao W, Li Y, Liu Y, Zhou Y, Liu C. Protective effect of ulinastatin in patients with non-small cell lung cancer after radiation therapy: a randomized, placebo-controlled study. Med Oncol 2014; 32:405. [PMID: 25502081 DOI: 10.1007/s12032-014-0405-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Accepted: 11/24/2014] [Indexed: 02/06/2023]
Abstract
Radiation-induced lung injury (RILI) is a frequent, sometimes life-threatening complication of radiation therapy for the treatment of lung cancer. The anti-inflammatory role of ulinastatin has been well documented, and the potential application of ulinastatin in management of acute lung injury has been suggested in multiple animal studies. In this article, we described a double-blind, randomized, placebo-controlled study in patients with non-small cell lung cancer. A total of 120 patients were randomized into two groups: the trial group was treated with ulinastatin for 3 days prior to and for the first 7 days of radiation therapy and the control group was treated with placebo for 10 days following the same schedule. The results from follow-up studies showed that the incidence and grade of RILI were significantly lower in the trial group than in the control group. Reduction in pulmonary function from baseline was significantly smaller in the trial group than that in the control group. Production of serum TGF-β1, TNF-α and IL-6 decreased significantly in the trial group promptly following radiation therapy. However, no difference in survival or tumour response rate was found between the two groups. The results indicated that ulinastatin exerted a protective effect on radiation-induced lung injury. Treatment with ulinastatin could be an effective management strategy and greatly improve the clinical efficacy of radiation therapy for patients with lung cancer.
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Affiliation(s)
- Pengtao Bao
- Department of Nanlou Respiratory Pulmonology, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, 100853, People's Republic of China
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Huang G, Liang B, Liu G, Liu K, Ding Z. Low dose of glucocorticoid decreases the incidence of complications in severely burned patients by attenuating systemic inflammation. J Crit Care 2014; 30:436.e7-11. [PMID: 25307976 DOI: 10.1016/j.jcrc.2014.09.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Revised: 09/10/2014] [Accepted: 09/14/2014] [Indexed: 01/09/2023]
Abstract
BACKGROUND Excessive systemic inflammatory response remains as a major problem underlying severe burns. This study aimed to assess the effect of low-dose glucocorticoid treatment in downregulating systemic inflammation in severely burned patients. METHODS A prospective study from 2001 to 2014 at our hospital was conducted to compare the patients who received low-dose glucocorticoid during the acute phase with those who did not. Patients with burns 70% or greater of their total body surface area were included, and their plasma levels of inflammatory cytokines and clinical outcomes were compared. RESULTS A total of 69 patients were included in this study, with 31 patients receiving glucocorticoid treatment and the others not. Patient demographics including age, burn size, and incidence of inhalation injury were similar in both groups. The incidence of pulmonary infection and stress ulcer (and/or hemorrhage) was 24.2% and 3.0% in the treatment group, respectively, significantly lower than 47.8% and 19.6% of the control group (P < .05). Length of hospital stay was almost 13 days shorter in the treatment group (P < .05), whereas there was no significant difference in the overall mortality, duration of mechanical ventilation, and incidence of sepsis between the 2 groups. The enzyme-linked immunosorbent assay results confirmed that the plasma levels of C-reactive protein, tumor necrosis factor-α, interleukin-6, and interleukin-8 were significantly lower in the treatment group (P < .05). CONCLUSION Low dose of glucocorticoid treatment during the acute phase could reduce the levels of proinflammatory cytokines in severely burned patients and subsequently decrease the incidence of pulmonary infection and stress ulcer, as well as the length of hospital stay.
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Affiliation(s)
- Guofeng Huang
- Center for Orthopedics and Burns, 175th Hospital of People's Liberation Army, Affiliated Southeast Hospital of Xiamen University, Zhangzhou, PR China, 363000
| | - Bowei Liang
- Center for Orthopedics and Burns, 175th Hospital of People's Liberation Army, Affiliated Southeast Hospital of Xiamen University, Zhangzhou, PR China, 363000
| | - Guojun Liu
- Center for Orthopedics and Burns, 175th Hospital of People's Liberation Army, Affiliated Southeast Hospital of Xiamen University, Zhangzhou, PR China, 363000
| | - Kuisheng Liu
- Center for Orthopedics and Burns, 175th Hospital of People's Liberation Army, Affiliated Southeast Hospital of Xiamen University, Zhangzhou, PR China, 363000
| | - Zhenqi Ding
- Center for Orthopedics and Burns, 175th Hospital of People's Liberation Army, Affiliated Southeast Hospital of Xiamen University, Zhangzhou, PR China, 363000.
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Jiang GT, Chen X, Li D, An HX, Jiao JD. Ulinastatin attenuates renal interstitial inflammation and inhibits fibrosis progression in rats under unilateral ureteral obstruction. Mol Med Rep 2014; 10:1501-8. [PMID: 24926571 DOI: 10.3892/mmr.2014.2323] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Accepted: 03/21/2014] [Indexed: 11/06/2022] Open
Abstract
The aim of the present study was to examine the protective effects of the urinary trypsin inhibitor ulinastatin (UTI) on renal interstitial inflammation and fibrosis in rats subjected to unilateral ureteral obstruction (UUO). A total of 24 male Wistar rats were randomly divided into the three groups; the sham operation (SOR) group (n=8), the UUO group (n=8) and the UUO+UTI group (post‑UUO UTI treatment, n=8). UUO was performed with complete ligation of the left ureter. As a medical intervention, saline (4 ml kg‑1 d‑1) and UTI (40000 units kg‑1 d‑1) were injected, respectively, into the animals of the corresponding groups on day one following surgery. The rats in all three groups were euthanized on day seven post surgery. Blood samples were harvested for blood urea nitrogen (BUN) and serum creatinine (Scr) content measurements. The degree of interstitial pathological changes in the tissues from the obstructed kidneys were observed through hematoxylin and eosin (H&E) and Masson staining. The CD68+ macrophage amount, tumor necrosis factor‑α (TNF‑α), interleukin 1β (IL‑1β), nuclear factor‑κB (NF‑κB), transforming growth factor‑β1 (TGF‑β1) and type I collagen (Col‑I) levels were examined immunohistochemically. The protein expression levels of NF‑κB were examined using western blot analysis. Total superoxide dismutase (SOD) activity and malondialdehyde (MDA) content of homogenates were measured spectrophotometrically. The results revealed that ulinastatin had no statistically significant effect on the BUN and Scr levels (P>0.05). However, in comparison with the SOR group, the UUO group exhibited significantly more severe renal interstitial pathological injury in terms of tubular dilation, epithelial atrophy, renal interstitial inflammatory cell infiltration and proliferation of fibrous tissues, as well as significantly elevated levels of interstitial CD68+ macrophages, IL‑1β, TNF‑α, NF‑κB, TGF‑β1 and Col‑I (P<0.01). UTI treatment significantly reduced UUO‑induced renal interstitial damage with reduced levels of interstitial CD68+ macrophages, IL‑1β, TNF‑α, NF‑κB, TGF‑β1 and Col‑I and MDA (P<0.05), and increased SOD levels (P<0.05). In conclusion, the present study indicated that UTI is able to effectively inhibit UUO‑side renal interstitial inflammatory reaction and fibrosis in UUO‑inflicted rats.
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Affiliation(s)
- Guo-Tao Jiang
- Department of Nephrology, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Xiao Chen
- Department of Nephrology, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Dong Li
- Department of Nephrology, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Hui-Xia An
- Department of Nephrology, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Jun-Dong Jiao
- Department of Nephrology, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
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Does intraoperative ulinastatin improve postoperative clinical outcomes in patients undergoing cardiac surgery: a meta-analysis of randomized controlled trials. BIOMED RESEARCH INTERNATIONAL 2014; 2014:630835. [PMID: 24734237 PMCID: PMC3964764 DOI: 10.1155/2014/630835] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Revised: 11/04/2013] [Accepted: 12/02/2013] [Indexed: 11/18/2022]
Abstract
INTRODUCTION The systematic meta-analysis of randomized controlled trials (RCTs) evaluated the effects of intraoperative ulinastatin on early-postoperative recovery in patients undergoing cardiac surgery. METHODS RCTs comparing intraoperative ulinastatin with placebo in cardiac surgery were searched through PubMed, Cochrane databases, Medline, SinoMed, and the China National Knowledge Infrastructure (1966 to May 20th, 2013). The primary endpoints included hospital mortality, postoperative complication rate, length of stay in intensive care unit, and extubation time. The physiological and biochemical parameters illustrating postoperative cardiac and pulmonary function as well as inflammation response were considered as secondary endpoints. RESULTS Fifteen RCTs (509 patients) met the inclusion criteria. Ulinastatin did not affect hospital mortality, postoperative complication rate, or ICU length of stay but reduced extubation time. Ulinastatin also increased the oxygenation index on postoperative day 1 and reduced the plasma level of cardiac troponin-I. Additionally, ulinastatin inhibited the increased level of tumor necrosis factor-alpha, polymorphonuclear neutrophil elastase, interleukin-6, and interleukin-8 associated with cardiac surgery. CONCLUSION Ulinastatin may be of value for the inhibition of postoperative increased inflammatory agents and most likely provided pulmonary protective effects in cardiac surgery. However, larger adequately powered RCTs are required to define the clinical effect of ulinastatin on postoperative outcomes in cardiac surgery.
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Leng YX, Yang SG, Song YH, Zhu X, Yao GQ. Ulinastatin for acute lung injury and acute respiratory distress syndrome: A systematic review and meta-analysis. World J Crit Care Med 2014; 3:34-41. [PMID: 24834400 PMCID: PMC4021152 DOI: 10.5492/wjccm.v3.i1.34] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Revised: 10/05/2013] [Accepted: 11/02/2013] [Indexed: 02/06/2023] Open
Abstract
AIM To investigate the efficacy and safety of ulinastatin for patients with acute lung injury (ALI) and those with acute respiratory distress syndrome (ARDS). METHODS A systematic review of randomized controlled trials (RCTs) of ulinastatin for ALI/ARDS was conducted. Oxygenation index, mortality rate [intensive care unit (ICU) mortality rate, 28-d mortality rate] and length of ICU stay were compared between ulinastatin group and conventional therapy group. Meta-analysis was performed by using Rev Man 5.1. RESULTS Twenty-nine RCTs with 1726 participants were totally included, the basic conditions of which were similar. No studies discussed adverse effect. Oxygenation index was reported in twenty-six studies (1552 patients). Ulinastatin had a significant effect in improving oxygenation [standard mean difference (SMD) = 1.85, 95%CI: 1.42-2.29, P < 0.00001, I(2) = 92%]. ICU mortality and 28-d mortality were respectively reported in eighteen studies (987 patients) and three studies (196 patients). We found that ulinastatin significantly decreased the ICU mortality [I(2) = 0%, RR = 0.48, 95%CI: 0.38-0.59, number needed to treat (NNT) = 5.06, P < 0.00001], while the 28-d mortality was not significantly affected (I(2) = 0%, RR = 0.78, 95%CI: 0.51-1.19, NNT = 12.66, P = 0.24). The length of ICU stay (six studies, 364 patients) in the ulinastatin group was significantly lower than that in the control group (SMD = -0.97, 95%CI: -1.20--0.75, P < 0.00001, I(2) = 86%). CONCLUSION Ulinastatin seems to be effective for ALI and ARDS though most trials included were of poor quality and no information on safety was provided.
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Liang X, Wang RS, Wang F, Liu S, Guo F, Sun L, Wang YJ, Sun YX, Chen XL. Sodium butyrate protects against severe burn-induced remote acute lung injury in rats. PLoS One 2013; 8:e68786. [PMID: 23874764 PMCID: PMC3708909 DOI: 10.1371/journal.pone.0068786] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2013] [Accepted: 06/01/2013] [Indexed: 12/14/2022] Open
Abstract
High-mobility group box 1 protein (HMGB1), a ubiquitous nuclear protein, drives proinflammatory responses when released extracellularly. It plays a key role as a distal mediator in the development of acute lung injury (ALI). Sodium butyrate, an inhibitor of histone deacetylase, has been demonstrated to inhibit HMGB1 expression. This study investigates the effect of sodium butyrate on burn-induced lung injury. Sprague-Dawley rats were divided into three groups: 1) sham group, sham burn treatment; 2) burn group, third-degree burns over 30% total body surface area (TBSA) with lactated Ringer's solution for resuscitation; 3) burn plus sodium butyrate group, third-degree burns over 30% TBSA with lactated Ringer's solution containing sodium butyrate for resuscitation. The burned animals were sacrificed at 12, 24, and 48 h after burn injury. Lung injury was assessed in terms of histologic changes and wet weight to dry weight (W/D) ratio. Tumor necrosis factor (TNF)-α and interleukin (IL)-8 protein concentrations in bronchoalveolar lavage fluid (BALF) and serum were measured by enzyme-linked immunosorbent assay, and HMGB1 expression in the lung was determined by Western blot analysis. Pulmonary myeloperoxidase (MPO) activity and malondialdehyde (MDA) concentration were measured to reflect neutrophil infiltration and oxidative stress in the lung, respectively. As a result, sodium butyrate significantly inhibited the HMGB1 expressions in the lungs, reduced the lung W/D ratio, and improved the pulmonary histologic changes induced by burn trauma. Furthermore, sodium butyrate administration decreased the TNF-α and IL-8 concentrations in BALF and serum, suppressed MPO activity, and reduced the MDA content in the lungs after severe burn. These results suggest that sodium butyrate attenuates inflammatory responses, neutrophil infiltration, and oxidative stress in the lungs, and protects against remote ALI induced by severe burn, which is associated with inhibiting HMGB1 expression.
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Affiliation(s)
- Xun Liang
- Department of Burns, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, PR China
| | - Ren-Su Wang
- Department of Burns, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, PR China
| | - Fei Wang
- Department of Burns, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, PR China
| | - Sheng Liu
- Department of Burns, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, PR China
| | - Feng Guo
- Department of Burns, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, PR China
| | - Li Sun
- Department of Burns, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, PR China
| | - Yong-Jie Wang
- Department of Burns, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, PR China
| | - Ye-Xiang Sun
- Department of Burns, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, PR China
| | - Xu-Lin Chen
- Department of Burns, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, PR China
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Yu HP, Liu FC, Tsai YF, Hwang TL. Osthole attenuates hepatic injury in a rodent model of trauma-hemorrhage. PLoS One 2013; 8:e65916. [PMID: 23755293 PMCID: PMC3675024 DOI: 10.1371/journal.pone.0065916] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Accepted: 04/30/2013] [Indexed: 01/14/2023] Open
Abstract
Recent evidences show that osthole possesses anti-inflammatory properties and protective effects following shock-like states, but the mechanism of these effects remains unknown. The p38 mitogen-activated protein kinase (p38 MAPK) pathway exerts anti-inflammatory effects in injury. The aim of this study was to investigate whether p38 MAPK plays any role in the osthole-mediated attenuation of hepatic injury after trauma-hemorrhage. Male Sprague-Dawley rats underwent trauma-hemorrhage (mean blood pressure maintained at approximately 35-40 mmHg for 90 minutes), followed by fluid resuscitation. During resuscitation, a single dose of osthole (3 mg/kg, intravenously) with and without a p38 MAPK inhibitor SB-203580 (2 mg/kg, intravenously), SB-203580 or vehicle was administered. Plasma alanine aminotransferase (ALT) with aspartate aminotransferase (AST) concentrations and various hepatic parameters were measured (n = 8 rats/group) at 24 hours after resuscitation. The results showed that trauma-hemorrhage increased hepatic myeloperoxidase activity, intercellular adhesion molecule-1 and interleukin-6 levels, and plasma ALT and AST concentrations. These parameters were significantly improved in the osthole-treated rats subjected to trauma-hemorrhage. Osthole treatment also increased hepatic phospho-p38 MAPK expression compared with vehicle-treated trauma-hemorrhaged rats. Co-administration of SB-203580 with osthole abolished the osthole-induced beneficial effects on the above parameters and hepatic injury. These results suggest that the protective effect of osthole administration on alleviation of hepatic injury after trauma-hemorrhage, which is, at least in part, through p38 MAPK-dependent pathway.
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Affiliation(s)
- Huang-Ping Yu
- Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
- * E-mail: (HPY); (TLH)
| | - Fu-Chao Liu
- Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Yung-Fong Tsai
- Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
- Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, Chang Gung University, Taoyuan, Taiwan
- * E-mail: (HPY); (TLH)
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Xu CE, Zou CW, Zhang MY, Guo L. Effects of High-Dose Ulinastatin on Inflammatory Response and Pulmonary Function in Patients With Type-A Aortic Dissection After Cardiopulmonary Bypass Under Deep Hypothermic Circulatory Arrest. J Cardiothorac Vasc Anesth 2013; 27:479-84. [DOI: 10.1053/j.jvca.2012.11.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Indexed: 11/11/2022]
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Sirtinol attenuates trauma hemorrhage-induced hepatic injury through Akt-dependent pathway in rats. J Trauma Acute Care Surg 2013; 74:1027-32. [PMID: 23511141 DOI: 10.1097/ta.0b013e3182858389] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND Recent evidences show that sirtinol possesses anti-inflammatory properties and protective effects after shocklike states, but the mechanism of these effects remains unknown. Akt (also known as protein kinase B) exerts anti-inflammatory effects in injury. The aim of this study was to investigate whether Akt plays any role in the sirtinol-mediated attenuation of hepatic injury after trauma hemorrhage. METHODS Male Sprague-Dawley rats underwent trauma hemorrhage (mean blood pressure maintained at approximately 35-40 mm Hg for 90 minutes), followed by fluid resuscitation. During resuscitation, a single dose of sirtinol (1 mg/kg i.v.) with and without a PI3K inhibitor wortmannin (1 mg/kg i.v.), wortmannin, or vehicle was administered. Plasma alanine aminotransferase with aspartate aminotransferase (AST) concentrations and various hepatic parameters were measured (n = 8 rats per group) at 24 h after resuscitation. One-way analysis of variance and Tukey testing were used for statistical analysis. RESULTS Trauma hemorrhage increased hepatic myeloperoxidase activity, intercellular adhesion molecule-1 (ICAM-1) and interleukin-6 levels, and plasma alanine aminotransferase and aspartate aminotransferase concentrations. These parameters were significantly improved in the sirtinol-treated rats subjected to trauma hemorrhage. Sirtinol treatment also increased hepatic phospho-Akt expression compared with vehicle-treated trauma-hemorrhaged rats. The coadministration of wortmannin with sirtinol abolished the sirtinol-induced beneficial effects on the above parameters and hepatic injury. CONCLUSION These results suggest the protective effect of sirtinol administration on the alleviation of hepatic injury after trauma hemorrhage, which is, at least in part, through Akt-dependent pathway.
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Ulinastatin suppresses burn-induced lipid peroxidation and reduces fluid requirements in a Swine model. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2013; 2013:904370. [PMID: 23738046 PMCID: PMC3655655 DOI: 10.1155/2013/904370] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Revised: 04/06/2013] [Accepted: 04/08/2013] [Indexed: 12/02/2022]
Abstract
Objective. Lipid peroxidation plays a critical role in burn-induced plasma leakage, and ulinastatin has been reported to reduce lipid peroxidation in various models. This study aims to examine whether ulinastatin reduces fluid requirements through inhibition of lipid peroxidation in a swine burn model. Methods. Forty miniature swine were subjected to 40% TBSA burns and were randomly allocated to the following four groups: immediate lactated Ringer's resuscitation (ILR), immediate LR containing ulinastatin (ILR/ULI), delayed LR resuscitation (DLR), and delayed LR containing ulinastatin (DLR/ULI). Hemodynamic variables, net fluid accumulation, and plasma thiobarbituric acid reactive substances (TBARS) concentrations were measured. Heart, liver, lung, skeletal muscle, and ileum were harvested at 48 hours after burn for evaluation of TBARS concentrations, activities of antioxidant enzymes, and tissue water content. Results. Ulinastatin significantly reduced pulmonary vascular permeability index (PVPI) and extravascular lung water index (ELWI), net fluid accumulation, and water content of heart, lung, and ileum in both immediate or delayed resuscitation groups. Furthermore, ulinastatin infusion significantly reduced plasma and tissue concentrations of TBARS in both immediate or delayed resuscitation groups. Conclusions. These results indicate that ulinastatin can reduce fluid requirements through inhibition of lipid peroxidation.
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Zhang BQ, Wang G, Zhang JP, Hu JY, Xiao R, Lei ZY, Ruan J, Dang YM, Zhang DX, Bian XW, Huang YS. Protective effects of enalapril, an angiotensin-converting enzyme inhibitor, on multiple organ damage following scald injury in rats. Biotechnol Appl Biochem 2013; 59:307-13. [PMID: 23586864 DOI: 10.1002/bab.1027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2012] [Accepted: 06/14/2012] [Indexed: 01/11/2023]
Abstract
The aim of this study is to investigate the effects of enalapril, an angiotensin-converting enzyme inhibitor, on multiple organ damage after scald injury. Healthy adult rats (half male and half female; 8-12 weeks old) were randomly assigned to the following treatments: sham operation, scald injury, and intraperitoneal enalapril (1, 2, and 4 mg/kg body weight) treatment after scalding. At 1, 12, and 24 H postscald, left ventricular and aortic hemodynamics were measured using a multichannel physiological recorder. Functional and pathological changes of the heart, liver, and kidney were examined by biochemical and histological methods. Compared with sham controls, untreated scalded animals showed decreased hemodynamic parameters and increased myocardial angiotensin II, serum creatine kinase heart isoenzyme, and serum cardiac troponin I and histopathological inflammation in the myocardium 12 H postscald. These hemodynamic, functional, and pathological changes were attenuated by 1 mg/kg enalapril. Enalapril reversed scald-induced elevations in aspartate aminotransferase, alanine aminotransferase, blood urea nitrogen, and blood creatinine 12 H postscald, and ameliorated focal necrosis in the liver and erythrocyte cast formation in renal tubules. However, higher doses of enalapril yielded less or no improvement in organ dysfunction. Enalapril at 1 mg/kg attenuates scald-induced multiple organ damage in rats.
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Affiliation(s)
- Bing-Qian Zhang
- Institute of Burn Research of PLA, National Key Laboratory of Trauma, Burn and Combined Injury, Third Military Medical University, Chongqing, People's Republic of China
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Li M, Yong-Zhe L, Ya-Qun M, Sheng-Suo Z, Li-Tao Z, Ning-Ling P. Ulinastatin alleviates neuroinflammation but fails to improve cognitive function in aged rats following partial hepatectomy. Neurochem Res 2013; 38:1070-7. [PMID: 23508312 DOI: 10.1007/s11064-013-1018-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2012] [Revised: 02/17/2013] [Accepted: 03/12/2013] [Indexed: 11/29/2022]
Abstract
Postoperative cognitive dysfunction (POCD) is very common complication of surgery in aged individuals. Accumulated evidence suggests that neuroinflammation may be the underlying cause of POCD. The aim of the present study was to investigate the effects of ulinastatin (UTI) on neuroinflammation and on learning and memory of aged rats after anesthesia and surgery. Our results showed that anesthetic isoflurane increased the hippocampal mRNA level of IL-1β, while surgery of partial hepatectomy increased the hippocampal mRNA levels of IL-1β, TNF-α, and IL-6 as well as impaired rats' spatial memory at day 7 post-surgery. UTI (10,000 U/kg, i.v.) decreased the anesthesia- and surgery-induced increases in mRNA levels of all three cytokines, but did not improve the rats' impaired working memory. In conclusion, moderate and temporary suppression of UTI-induced inflammatory cytokines in hippocampus is not sufficient to alleviate the impairment of working memory.
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Affiliation(s)
- Ma Li
- Department of Anesthesiology, Beijing Military General Hospital of the Chinese People's Liberation Army, Beijing 100700, China.
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Wang X, Xue Q, Yan F, Li L, Liu J, Li S, Hu S. Ulinastatin as a neuroprotective and anti-inflammatory agent in infant piglets model undergoing surgery on hypothermic low-flow cardiopulmonary bypass. Paediatr Anaesth 2013; 23:209-16. [PMID: 23384299 DOI: 10.1111/pan.12073] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/02/2012] [Indexed: 11/27/2022]
Abstract
OBJECTIVE Infants are potentially more susceptible to brain injury mediated via cell death attributed to cardiopulmonary bypass (CPB) especially with prolonged hypothermic low flow (HLF). We hypothesized that a human urinary protease inhibitor (ulinastatin), by its anti-inflammatory effect, would reduce central nervous system (CNS) injury during HLF. METHODS Fifteen general-type infant piglets were randomized to ulinastatin group (group U, n = 5), control group (group C, n = 5), and sham operation group (group S, n = 5). Routine CPB was established after median thoracotomy in group U and C under anesthesia. When the temperature of infant piglets dropped down to 25 °C, low-flow CPB (50 ml·kg(-1) ·min(-1) ) was instituted. After 120 min of aortic cross-clamping and 20- to 30-min rewarming, the aortic cross-clamp was removed and finally the piglet was weaned from CPB. Five thousand units per killogram of ulinastatin and equivalently normal saline were, respectively, given at the beginning of and at aortic declamping in group U and group C. group S just received sham median thoracotomy. Venous blood samples were taken immediately after anesthesia induction in all three groups, 5- and 120-min post CPB in both group U and C, respectively; plasma markers of inflammation and CNS injury were compared. Pathology results of hippocampus were observed by light microscopy. RESULTS Statistically significant differences between group C and U were noted in the expression of inflammatory markers such as IL-10, TNF-α and neuron-specific enolase at 120-min post CPB. Brain injuries were observed in both groups (index cases and controls) and were milder in group U. CONCLUSIONS In our study, HLF CPB on infant piglets resulted in brain injury, and ulinastatin might reduce the extent of such injury.
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Affiliation(s)
- Xiaocou Wang
- Department of Anesthesiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Luo HM, Hu S, Zhou GY, Bai HY, Lv Y, Wang HB, Lin HY, Sheng ZY. The effects of ulinastatin on systemic inflammation, visceral vasopermeability and tissue water content in rats with scald injury. Burns 2012; 39:916-22. [PMID: 23219090 DOI: 10.1016/j.burns.2012.11.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2012] [Revised: 10/10/2012] [Accepted: 11/07/2012] [Indexed: 11/18/2022]
Abstract
BACKGROUND The aim of this study was to examine whether administration of ulinastatin inhibits pro-inflammatory mediators and ameliorate visceral vasopermeability both in a rat model of major burn, and also in rat cultured endothelial cells stimulated with permeability-evoking mediators. METHODS Plasma levels of tumor necrosis factor-alpha (TNF-α), C-reactive protein (CRP), myeloperoxidase (MPO), microvascular permeability, and water content of organ tissues were evaluated in a rodent model of a 55% TBSA full-thickness scald injury. Microvascular permeability was also evaluated with a cultured pulmonary microvascular endothelial cells (PMECs) monolayer after stimulation with trypsin, bradykinin, histamine, prostaglandin E2 and burn serum. RESULTS We found that the plasma levels of TNF-α, CRP, MPO, vascular permeability and water content of heart, lung, kidney, and small intestine tissues were significantly increased in animals after scald injury, and administration of ulinastatin lowered the levels TNF-α, CRP, MPO, vascular permeability and water content of those organ tissues. In vitro, ulinastatin lowered the levels of TNF-α, interleukin-6 (IL-6) and attenuated permeability in PMEC monolayers after being stimulated with burn serum or trypsin, but not by bradykinin, histamine or prostaglandin E2. CONCLUSIONS These results indicate that ulinastatin attenuates the systemic inflammatory response and visceral vasopermeability both in vivo and vitro, and may serve as a therapeutic agent for prevention of systemic inflammatory response and leakage of fluid into tissue after major burn.
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Affiliation(s)
- Hong-Min Luo
- Laboratory of Shock and Organ Dysfunction, Burns Institute, The First Hospital Affiliated to the People's Liberation Army General Hospital, 51 Fu Cheng Road, Beijing 100048, China.
| | - Sen Hu
- Laboratory of Shock and Organ Dysfunction, Burns Institute, The First Hospital Affiliated to the People's Liberation Army General Hospital, 51 Fu Cheng Road, Beijing 100048, China.
| | - Guo-yong Zhou
- Laboratory of Shock and Organ Dysfunction, Burns Institute, The First Hospital Affiliated to the People's Liberation Army General Hospital, 51 Fu Cheng Road, Beijing 100048, China.
| | - Hui-Ying Bai
- Laboratory of Shock and Organ Dysfunction, Burns Institute, The First Hospital Affiliated to the People's Liberation Army General Hospital, 51 Fu Cheng Road, Beijing 100048, China.
| | - Yi Lv
- Laboratory of Shock and Organ Dysfunction, Burns Institute, The First Hospital Affiliated to the People's Liberation Army General Hospital, 51 Fu Cheng Road, Beijing 100048, China.
| | - Hai-Bin Wang
- Department of Clinical Laboratory, The First Hospital Affiliated to the People's Liberation Army General Hospital, 51 Fu Cheng Road, Beijing 100048, China.
| | - Hong-Yuan Lin
- Department of Critical Care Medicine, The First Hospital Affiliated to the People's Liberation Army General Hospital, 51 Fu Cheng Road, Beijing 100048, China.
| | - Zhi-Yong Sheng
- Laboratory of Shock and Organ Dysfunction, Burns Institute, The First Hospital Affiliated to the People's Liberation Army General Hospital, 51 Fu Cheng Road, Beijing 100048, China.
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Huang N, Wang F, Wang Y, Hou J, Li J, Deng X. Ulinastatin improves survival of septic mice by suppressing inflammatory response and lymphocyte apoptosis. J Surg Res 2012; 182:296-302. [PMID: 23158408 DOI: 10.1016/j.jss.2012.10.043] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Revised: 10/16/2012] [Accepted: 10/18/2012] [Indexed: 10/27/2022]
Abstract
BACKGROUND Sepsis involves imbalance between the proinflammatory and antiinflammatory response to bacterial insults. Ulinastatin (UTI) is a serine protease inhibitor and reportedly exhibits antiinflammatory properties aside from its blocking of the protease pathway both in vitro and in vivo. This study was designed to investigate the potential therapeutic efficacy of UTI for sepsis. MATERIALS AND METHODS Adult C57BL/6 male mice were divided into three groups: sham group, cecal ligation and puncture (CLP) group, and CLP + UTI group. Acute septic peritonitis was induced by CLP. Saline and UTI (100,000 U/kg) were intravenously injected 30 min after CLP in CLP and CLP + UTI groups, respectively. Samples were collected for further analysis 24 h after surgery. RESULTS UTI administration significantly improved 7-d survival; ameliorated morphologic damage and weight loss in the spleen and thymus; decreased serum tumor necrosis factor α, interleukin-6, and interleukin-10 (IL-10) levels; increased the number of T and B cells in peripheral blood, spleen, and thymus; and inhibited T-cell apoptosis in the thymus and spleen in septic mice. CONCLUSIONS UTI exerted a protective effect against sepsis by suppressing inflammatory response and lymphocyte apoptosis.
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Affiliation(s)
- Na Huang
- Department of Anesthesiology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
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