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Guo L, Bao W, Yang S, Liu Y, Lyu J, Wang T, Lu Y, Li H, Zhu H, Chen D. Rhei Radix et Rhizoma in Xuanbai-Chengqi decoction strengthens the intestinal barrier function and promotes lung barrier repair in preventing severe viral pneumonia induced by influenza A virus. Journal of Ethnopharmacology 2024; 319:117231. [PMID: 37783404 DOI: 10.1016/j.jep.2023.117231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 09/22/2023] [Accepted: 09/24/2023] [Indexed: 10/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Xuanbai-Chengqi decoction (XCD) is a traditional prescription for treating multiple organ injuries, which has been used to manage pneumonia caused by various pathogens. However, the effects of XCD on repairing pulmonary/intestinal barrier damage remain unclear, and there is a need to understand the compatibility mechanism of rhubarb. AIM OF THE STUDY This work aims to investigate the protective effect and mechanism of XCD on the pulmonary/intestinal barrier guided by the theory of "gut-lung concurrent treatment". Moreover, we elucidate the compatibility mechanism of rhubarb in XCD. MATERIALS AND METHODS An H1N1 virus-infected mouse model was adopted to investigate the reparative effects of XCD on the lung-intestinal barrier by assessing lung-intestinal permeability. Additionally, the characterization of type I alveolar epithelial cells (AT1) and type II alveolar epithelial cells (AT2) was performed to evaluate the damage to the alveolar epithelial barrier. The specific barrier-protective mechanisms of XCD were elucidated by detecting tight junction proteins and the epithelial cell repair factor IL-22. The role of rhubarb in XCD to pneumonia treatment was investigated through lung tissue transcriptome sequencing and flow cytometry. RESULTS XCD significantly improved lung tissue edema, inflammation, and alveolar epithelial barrier damage by regulating IL-6, IL-10, and IL-22, which, could further improve pulmonary barrier permeability when combined with the protection of alveolar epithelial cells (AT1 and AT2) as well as inhibition of H1N1 virus replication. Simultaneously, XCD significantly reduced intestinal inflammation and barrier damage by regulating IL-6, IL-1β, and tight junction protein levels (Claudin-1 and ZO-1), improving intestinal barrier permeability. The role of rhubarb in the treatment of pneumonia is clarified for the first time. In the progression of severe pneumonia, rhubarb can significantly protect the intestinal barrier, promote the repair of AT2 cells, and inhibit the accumulation of CD11b+Ly6Gvariable aberrant neutrophils by regulating the S100A8 protein. CONCLUSION In summary, our findings suggest that rhubarb in XCD plays a critical role in protecting intestinal barrier function and promoting lung barrier repair in preventing severe viral pneumonia caused by influenza A virus.
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Affiliation(s)
- Linfeng Guo
- Department of Natural Medicine, School of Pharmacy, Fudan University, 3728# Jinke Rd., Pudong District, Shanghai, 201203, PR China
| | - Weilian Bao
- Department of Natural Medicine, School of Pharmacy, Fudan University, 3728# Jinke Rd., Pudong District, Shanghai, 201203, PR China
| | - Shuiyuan Yang
- Department of Natural Medicine, School of Pharmacy, Fudan University, 3728# Jinke Rd., Pudong District, Shanghai, 201203, PR China
| | - Yang Liu
- Department of Natural Medicine, School of Pharmacy, Fudan University, 3728# Jinke Rd., Pudong District, Shanghai, 201203, PR China
| | - Jiaren Lyu
- Department of Natural Medicine, School of Pharmacy, Fudan University, 3728# Jinke Rd., Pudong District, Shanghai, 201203, PR China
| | - Ting Wang
- Department of Biological Medicines, Shanghai Engineering Research Center of ImmunoTherapeutics, School of Pharmacy, Fudan University, 3728# Jinke Rd., Pudong, District, Shanghai, 201203, PR China
| | - Yan Lu
- Department of Natural Medicine, School of Pharmacy, Fudan University, 3728# Jinke Rd., Pudong District, Shanghai, 201203, PR China
| | - Hong Li
- Department of Pharmacology, School of Pharmacy, Fudan University, 3728# Jinke Rd., Pudong, Shanghai, 201203, PR China
| | - Haiyan Zhu
- Department of Biological Medicines, Shanghai Engineering Research Center of ImmunoTherapeutics, School of Pharmacy, Fudan University, 3728# Jinke Rd., Pudong, District, Shanghai, 201203, PR China.
| | - Daofeng Chen
- Department of Natural Medicine, School of Pharmacy, Fudan University, 3728# Jinke Rd., Pudong District, Shanghai, 201203, PR China.
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Li H, Liu S, Dai W, Yao B, Zhou Y, Si S, Yu H, Zhao R, Jin F, Jiang L. Pressure-sensitive multivesicular liposomes as a smart drug-delivery system for high-altitude pulmonary edema. J Control Release 2024; 365:301-316. [PMID: 38007195 DOI: 10.1016/j.jconrel.2023.11.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 11/19/2023] [Accepted: 11/20/2023] [Indexed: 11/27/2023]
Abstract
Changes in bodily fluid pressures, such as pulmonary artery pressure, play key roles in high-altitude pulmonary edema (HAPE) and other disorders. Smart delivery systems releasing a drug in response to these pressures might facilitate early medical interventions. However, pressure-responsive delivery systems are unavailable. We here constructed hydrostatic pressure-sensitive multivesicular liposomes (PSMVLs) based on the incomplete filling of the internal vesicle space with neutral lipids. These liposomes were loaded with amlodipine besylate (AB), a next-generation calcium channel inhibitor, to treat HAPE on time. AB-loaded PSMVLs (AB-PSMVLs) were destroyed, and AB was released through treatment under hydrostatic pressure of at least 25 mmHg. At 25 mmHg, which is the minimum pulmonary artery pressure value in HAPE, 38.8% of AB was released within 1 h. In a mouse HAPE model, AB-PSMVLs concentrated in the lung and released AB to diffuse into the vascular wall. Intravenously injected AB-PSMVLs before HAPE modeling resulted in a stronger protection of lung tissues and respiratory function and lower occurrence of pulmonary edema than treatment with free drug or non-pressure-sensitive AB-loaded liposomes. This study offers a new strategy for developing smart drug delivery systems that respond to changes in bodily fluid pressures.
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Affiliation(s)
- Huiyang Li
- School of pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Shuo Liu
- School of pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Wenjin Dai
- School of pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Bingmei Yao
- School of pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Yong Zhou
- School of pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu Province, China; Guanyun People's Hospital, Lianyungang, Jiangsu Province, China
| | - Sujia Si
- School of pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Hairong Yu
- Huaihai Hospital Affiliated to Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Riguang Zhao
- Huaihai Hospital Affiliated to Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Fang Jin
- School of pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Liqun Jiang
- School of pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu Province, China.
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Li N, Cheng Y, Jin T, Cao L, Zha J, Zhu X, He Q. Kaempferol and ginsenoside Rg1 ameliorate acute hypobaric hypoxia induced lung injury based on network pharmacology analysis. Toxicol Appl Pharmacol 2023; 480:116742. [PMID: 37923178 DOI: 10.1016/j.taap.2023.116742] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 10/19/2023] [Accepted: 10/29/2023] [Indexed: 11/07/2023]
Abstract
Acute hypobaric hypoxia at high altitude can cause fatal non-cardiogenic high altitude pulmonary edema. Anti-inflammatory and anti-oxidant treatments appear to be a prospective way to alleviate acute hypoxia lung injury. Kaempferol (KA) and ginsenoside Rg1 (GRg1) can be isolated and purified from ginseng with anti-inflammatory, antioxidant, anti-carcinogenic, neuroprotective, and antiaging effects. However, their effects and pharmacological mechanisms on lung injury remains unclear. Network pharmacology analyses were used to explore potential targets of KA and GRg1 against acute hypobaric hypoxia induced lung injury. Rat lung tissues were further used for animal experiment verification. Among the putative targets of KA and GRg1 for inhibition of acute hypobaric hypoxia induced lung injury, AKT1, PIK3R1, PTK2, STAT3, HSP90AA1 and AKT2 were recognized as higher interrelated targets. And PI3K-AKT signaling pathway is considered to be the most important and relevant pathway. The rat experimental results showed that KA and GRg1 significantly improved histopathological changes and decreased pulmonary edema in rats with lung injury caused by acute hypobaric hypoxia. The concentrations of IL-6, TNF-α, MDA, SOD and CAT in rats treated with KA and GRg1 were significantly ameliorated. Protein and mRNA levels of PI3K and AKTI were significantly inhibited after KA administration. KA and GRg1 can lower lung water content, improve lung tissue damage, reduce the production of pro-inflammatory cytokines and the oxidative stress level.
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Affiliation(s)
- Na Li
- School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Yuan Cheng
- Department of Intensive Care Medicine, The Third People's Hospital of Chengdu/Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
| | - Tao Jin
- School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Lirui Cao
- Department of Intensive Care Medicine, The Third People's Hospital of Chengdu/Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
| | - Jieyu Zha
- Department of Intensive Care Medicine, The Third People's Hospital of Chengdu/Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
| | - Xiong Zhu
- Department of Critical Care Medicine, Zhuhai People's Hospital, Zhuhai, Guangdong, China
| | - Qing He
- School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China; Department of Intensive Care Medicine, The Third People's Hospital of Chengdu/Affiliated Hospital of Southwest Jiaotong University, Chengdu, China.
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Wang G, Hou G, Tian Q, Liu C, Guo Y, Wei H, Zhang Z, Li M. Inhibition of S100A9 alleviates neurogenic pulmonary edema after subarachnoid hemorrhage. Biochem Pharmacol 2023; 218:115905. [PMID: 37949322 DOI: 10.1016/j.bcp.2023.115905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 10/17/2023] [Accepted: 11/01/2023] [Indexed: 11/12/2023]
Abstract
BACKGROUND AND PURPOSE Neurogenic pulmonary edema (NPE) frequently arises as a complication subsequent to subarachnoid hemorrhage (SAH). Heterodimers of S100A8 and S100A9 are commonly formed, thereby initiating an inflammatory reaction through receptor binding on the cell surface. Paquinimod serves as a specific inhibitor of S100A9. The objective of this investigation is to assess the impact of Paquinimod administration and S100A9 knockout on NPE following SAH. METHODS In this study, SAH models of C57BL/6J wild-type (WT) and S100A9 knockout mice were established through intravascular perforation. These models were then divided into several groups, including the WT-sham group, S100A9-KO-sham group, WT-SAH group, WT-SAH + Paquinimod group, and S100A9-KO-SAH group. After 24 h of SAH induction, pulmonary edema was assessed using the lung wet-dry weight method and Hematoxylin and eosin (HE) staining. Additionally, the expression levels of various proteins, such as interleukin-1β (IL-1β), tumor necrosis factor α (TNF-α), occludin, claudin-3, Bax, Bcl-2, TLR4, MYD88, and pNF-κB, in lung tissue were analyzed using western blot and immunofluorescence staining. Lung tissue apoptosis was detected by TUNEL staining. RESULTS Firstly, our findings indicate that the knockout of S100A9 has a protective effect on early brain injury following subarachnoid hemorrhage (SAH). Additionally, the reduction of brain injury after SAH can also alleviate neurogenic pulmonary edema (NPE). Immunofluorescence staining and western blot analysis revealed that compared to SAH mice with wild-type S100A9 expression (WT-SAH), the lungs of S100A9 knockout SAH mice (S100A9-KO-SAH) and mice treated with Paquinimod exhibited decreased levels of inflammatory molecules (IL-1β and TNF-α) and increased levels of tight junction proteins. Furthermore, the knockout of S100A9 resulted in upregulated expression of the apoptotic-associated protein Bax and down-regulated expression of Bcl-2. Furthermore, a decrease in TLR4, MYD88, and phosphorylated pNF-κB was noted in S100A9-KO-SAH and Paquinimod treated mice, indicating the potential involvement of the TLR4/MYD88/NF-κB signaling pathway in the inhibition of the protective effect of S100A9 on NPE following SAH. CONCLUSION The knockout of S100A9 not only ameliorated initial cerebral injury following subarachnoid hemorrhage (SAH), but also mitigated SAH-associated neurogenic pulmonary edema (NPE). Additionally, Paquinimod was found to diminish NPE. These findings imply a correlation between the central nervous system and peripheral organs, highlighting the potential of safeguarding the brain to mitigate harm to peripheral organs.
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Affiliation(s)
- Guijun Wang
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China
| | - Guo Hou
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China; Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China
| | - Qi Tian
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China
| | - Chengli Liu
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China
| | - Yujia Guo
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China
| | - Heng Wei
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China
| | - Zhan Zhang
- Department of Rehabilitation Medicine, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China.
| | - Mingchang Li
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China.
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Wang X, Wang R, Kou Y, He H, Shi J. [Mechanism of dexamethasone combined with glutamine in reducing lung inflammation and pulmonary edema in rats with acute lung injury]. Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi 2023; 39:996-1002. [PMID: 37980551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2023]
Abstract
Objective To investigate the effect of dexamethasone (DEX) combined with glutamine (Gln) on lung inflammation and pulmonary edema in rats with acute lung injury induced by lipopolysaccharide (LPS) and its related mechanisms. Methods Fifty Wistar rats were randomly divided into control group, model group, dexamethasone group (DEX) and DEX combined with Gln group. Except for the control group, rats in other groups were injected with 6 mg/kg LPS intraperitoneally to induce an acute lung injury. The mRNA expression of p38 MAPK, NLRP3, and NF-κB in lung tissue were detected by real-time quantitative PCR. The protein expressions of p-p38 MAPK, NLRP3, phosphorylated inhibitor of nuclear factor κB (p-IκB), NF-κB p65, aquaporin 1 (AQP1) and AQP5 in lung tissue were detected by Western blot analysis. ELISA was used to detect the content of serum tumor necrosis factor-α (TNF-α), interleukin 6 (IL-6), interleukin 1β (IL-1β). Spectrophotometer was employed to detect the content of superoxide dismutase (SOD), malondialdehyde (MDA) and glutathione peroxidase (GSH-Px) in lung tissue. Results Compared with the control group, the lung index of the model group decreased, the content of the serum inflammatory factors TNF-α, IL-6 and IL-1β significantly increased, and the protein expression of p38 MAPK, NLRP3, NF-κB mRNA, p-p38 MAPK, NLRP3, p-IκB and NF-κB p65 in the lung tissue significantly increased, while that of AQP1, AQP5 decreased, and the content of SOD and GSH-Px in lung tissue decreased, while that of MDA increased; Compared with the model group, the above mentioned symptoms and indicators in each treatment group were significantly improved, among which the DEX combined with Gln group was the most significant. Conclusion DEX combined with Gln can inhibit inflammation, resist oxidative damage, relieve pulmonary edema, and prevent acute lung injury. Its mechanism is related to inhibiting the activation of p38 MAPK, NLRP3, and NF-κB signaling pathways, promoting the expression of AQP1 and AQP5, and promoting the activity of antioxidant products.
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Affiliation(s)
- Xuhong Wang
- Department of Respiratory, Affiliated Hospital to Shaanxi University of Chinese Medicine, Xianyang 712000, China
| | - Ruizhe Wang
- Department of Respiratory, Affiliated Hospital to Shaanxi University of Chinese Medicine, Xianyang 712000, China
| | - Yule Kou
- Department of Respiratory, Affiliated Hospital to Shaanxi University of Chinese Medicine, Xianyang 712000, China
| | - Hongwei He
- Department of Respiratory, Affiliated Hospital to Shaanxi University of Chinese Medicine, Xianyang 712000, China
| | - Jie Shi
- Department of Respiratory, Affiliated Hospital to Shaanxi University of Chinese Medicine, Xianyang 712000, China. *Corresponding author, E-mail:
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Pei C, Jia N, Wang Y, Zhao S, Shen Z, Shi S, Huang D, Wu Y, Wang X, Li S, He Y, Wang Z. Notoginsenoside R1 protects against hypobaric hypoxia-induced high-altitude pulmonary edema by inhibiting apoptosis via ERK1/2-P90rsk-BAD ignaling pathway. Eur J Pharmacol 2023; 959:176065. [PMID: 37775017 DOI: 10.1016/j.ejphar.2023.176065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 09/03/2023] [Accepted: 09/19/2023] [Indexed: 10/01/2023]
Abstract
High-altitude pulmonary edema (HAPE) is a potentially fatal disease. Notoginsenoside R1 is a novel phytoestrogen with anti-inflammatory, antioxidant and anti-apoptosis properties. However, its effects and underlying mechanisms in the protection of hypobaric hypoxia-induced HAPE rats remains unclear. This study aimed to explore the protective effects and underlying mechanisms of Notoginsenoside R1 in hypobaric hypoxia-induced HAPE. We found that Notoginsenoside R1 alleviated the lung tissue injury, decreased lung wet/dry ratio, and reduced inflammation and oxidative stress. Additionally, Notoginsenoside R1 ameliorated the changes in arterial blood gas, decreased the total protein concentration in bronchoalveolar lavage fluid, and inhibited the occurrence of apoptosis caused by HAPE. In the process of further exploration of the mechanism, it was found that Notoginsenoside R1 could promote the activation of ERK1/2-P90rsk-BAD signaling pathway, and the effect of Notoginsenoside R1 was attenuated after the use of ERK1/2 inhibitor U0126. Our study indicated that the protective effects of Notoginsenoside R1 against HAPE were mainly related to the inhibition of inflammation, oxidative stress, and apoptosis. Notoginsenoside R1 may be a potential candidate for preventing HAPE.
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Affiliation(s)
- Caixia Pei
- Hospital of Chengdu University of Traditional Chinese Medicine, No.39 Shi-er-qiao Road, Chengdu, Sichuan 610075, China
| | - Nan Jia
- Hospital of Chengdu University of Traditional Chinese Medicine, No.39 Shi-er-qiao Road, Chengdu, Sichuan 610075, China
| | - Yilan Wang
- Hospital of Chengdu University of Traditional Chinese Medicine, No.39 Shi-er-qiao Road, Chengdu, Sichuan 610075, China
| | - Sijing Zhao
- Hospital of Chengdu University of Traditional Chinese Medicine, No.39 Shi-er-qiao Road, Chengdu, Sichuan 610075, China
| | - Zherui Shen
- Hospital of Chengdu University of Traditional Chinese Medicine, No.39 Shi-er-qiao Road, Chengdu, Sichuan 610075, China
| | - Shihua Shi
- Hospital of Chengdu University of Traditional Chinese Medicine, No.39 Shi-er-qiao Road, Chengdu, Sichuan 610075, China
| | - Demei Huang
- Hospital of Chengdu University of Traditional Chinese Medicine, No.39 Shi-er-qiao Road, Chengdu, Sichuan 610075, China
| | - Yongcan Wu
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, Chongqing 400016, China; College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Xiaomin Wang
- Hospital of Chengdu University of Traditional Chinese Medicine, No.39 Shi-er-qiao Road, Chengdu, Sichuan 610075, China
| | - Shuiqin Li
- Hospital of Chengdu University of Traditional Chinese Medicine, No.39 Shi-er-qiao Road, Chengdu, Sichuan 610075, China
| | - Yacong He
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, No.1166 Liutai Avenue, Chengdu, Sichuan 611137, China.
| | - Zhenxing Wang
- Hospital of Chengdu University of Traditional Chinese Medicine, No.39 Shi-er-qiao Road, Chengdu, Sichuan 610075, China.
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Al Gburi MRA, Altinoz E, Elbe H, Onal MO, Yilmaz U, Yilmaz N, Karayakali M, Demir M. Pinealectomy and melatonin administration in rats: their effects on pulmonary edema induced by α-naphthylthiourea. Drug Chem Toxicol 2023; 46:1024-1034. [PMID: 36069203 DOI: 10.1080/01480545.2022.2119994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 04/21/2022] [Accepted: 05/01/2022] [Indexed: 11/03/2022]
Abstract
We aimed to observe the possible effects of melatonin (MLT) deprivation (pinealectomy) and exogenous MLT administration on pulmonary edema induced by alpha-naphthylthiourea (ANTU), a toxic chemical agent, in rats. Seventy animals were assigned to seven groups: control, sham pinealectomy (PINX), PINX, ANTU (10 mg/kg intraperitoneal on day 30), ANTU + MLT (10 mg/kg/day i.p. for 30 days), ANTU + PINX, and ANTU + PINX + MLT.In this study, pleural effusion (PE) formation, lung weight/body weight (LW/BW) and PE/BW ratios (fluid accumulation and weight values in the lungs) increase detected. Pre-ANTU MLT administration led to significant decreases in PE, LW/BW, and PE/BW levels. The inhibited glutathione (GSH) and superoxide dismutase (SOD) levels and high malondialdehyde (MDA) levels that ANTU increase lipid peroxidation in the study. MLT administration eliminated oxidative stress by reducing MDA and ameliorating GSH and SOD levels.Pre-ANTU MLT administration led to a significant decrease in interleukin-1 beta (IL-1β) and tumor necrosis factor-alpha (TNF-α) levels in the lung when compared to the ANTU group without MLT administration. Post-pinealectomy ANTU administration significantly increased IL-1β and TNF-α levels when compared to ANTU and MLT administration without pinealectomy. Diffused inflammatory cell infiltration, interstitial pulmonary edema, and histopathological congestion were observed after the administration of ANTU. Severity of the damage was elevated in the ANTU + PINX group. MLT treatment regressed pulmonary effusion and edema and improves lung structure. In brief, the findings suggested that MLT inhibited proinflammatory mediators and could serve as a therapeutic agent to prevent inflammatory disorders.
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Affiliation(s)
| | - Eyup Altinoz
- Department of Medical Biochemistry, Karabuk University, Karabuk, Turkey
| | - Hulya Elbe
- Department of Histology and Embryology, Mugla Sıtkı Kocman University, Mugla, Turkey
| | - Melike Ozgul Onal
- Department of Histology and Embryology, Mugla Sıtkı Kocman University, Mugla, Turkey
| | - Umit Yilmaz
- Department of Physiology, Karabuk University, Karabuk, Turkey
| | - Nesibe Yilmaz
- Department of Anatomy, Karabuk University, Karabuk, Turkey
| | - Melike Karayakali
- Department of Medical Biochemistry, Karabuk University, Karabuk, Turkey
| | - Mehmet Demir
- Department of Physiology, Karabuk University, Karabuk, Turkey
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Occhipinti G, Laudani C, Spagnolo M, Greco A, Capodanno D. Diuresis-matched versus standard hydration in patients undergoing percutaneous cardiovascular procedures: meta-analysis of randomized clinical trials. Rev Esp Cardiol (Engl Ed) 2023; 76:759-766. [PMID: 36801376 DOI: 10.1016/j.rec.2023.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 02/01/2023] [Indexed: 02/18/2023]
Abstract
INTRODUCTION AND OBJECTIVES Contrast-associated acute kidney injury (CA-AKI) is a potential complication of procedures requiring administration of iodinated contrast medium. RenalGuard, which provides real-time matching of intravenous hydration with furosemide-induced diuresis, is an alternative to standard periprocedural hydration strategies. The evidence on RenalGuard in patients undergoing percutaneous cardiovascular procedures is sparse. We used a Bayesian framework to perform a meta-analysis of RenalGuard as a CA-AKI preventive strategy. METHODS We searched Medline, Cochrane Library and Web of Science for randomized trials of RenalGuard vs standard periprocedural hydration strategies. The primary outcome was CA-AKI. Secondary outcomes were all-cause death, cardiogenic shock, acute pulmonary edema, and renal failure requiring renal replacement therapy. A Bayesian random-effect risk ratio (RR) with corresponding 95% credibility interval (95%CrI) was calculated for each outcome. PROSPERO database number CRD42022378489. RESULTS Six studies were included. RenalGuard was associated with a significant relative reduction in CA-AKI (median RR, 0.54; 95%CrI, 0.31-0.86) and acute pulmonary edema (median RR, 0.35; 95%CrI, 0.12-0.87). No significant differences were observed for the other secondary endpoints [all-cause death (RR, 0.49; 95%CrI, 0.13-1.08), cardiogenic shock (RR, 0.06; 95%CrI, 0.00-1.91), and renal replacement therapy (RR, 0.52; 95%CrI, 0.18-1.18)]. The Bayesian analysis also showed that RenalGuard had a high probability of ranking first for all the secondary outcomes. These results were consistent in multiple sensitivity analyses. CONCLUSIONS In patients undergoing percutaneous cardiovascular procedures, RenalGuard was associated with a reduced risk of CA-AKI and acute pulmonary edema compared with standard periprocedural hydration strategies.
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Affiliation(s)
- Giovanni Occhipinti
- Division of Cardiology, Azienda Ospedaliero-Universitaria Policlinico G. Rodolico-San Marco, University of Catania, Catania, Italy
| | - Claudio Laudani
- Division of Cardiology, Azienda Ospedaliero-Universitaria Policlinico G. Rodolico-San Marco, University of Catania, Catania, Italy
| | - Marco Spagnolo
- Division of Cardiology, Azienda Ospedaliero-Universitaria Policlinico G. Rodolico-San Marco, University of Catania, Catania, Italy
| | - Antonio Greco
- Division of Cardiology, Azienda Ospedaliero-Universitaria Policlinico G. Rodolico-San Marco, University of Catania, Catania, Italy
| | - Davide Capodanno
- Division of Cardiology, Azienda Ospedaliero-Universitaria Policlinico G. Rodolico-San Marco, University of Catania, Catania, Italy.
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Akhter MS, Kubra KT, Uddin MA, Jois S, Barabutis N. An antagonist of growth hormone-releasing hormone protects against LPS-induced increase of bronchoalveolar lavage fluid protein concentration. Inflamm Res 2022; 71:183-185. [PMID: 34993559 PMCID: PMC8736306 DOI: 10.1007/s00011-021-01531-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 11/28/2021] [Accepted: 11/30/2021] [Indexed: 01/27/2023] Open
Abstract
Growth Hormone-Releasing Hormone (GHRH) is a neuropeptide regulating the release of Growth Hormone (GH) from the anterior pituitary gland, and acts as a growth factor in a diverse variety of tissues. GHRH antagonists (GHRHAnt) have been developed to counteract those events, and the beneficial effects of those peptides toward homeostasis have been associated with anti-inflammatory activities. Our lab is interested in delineating the mechanisms governing endothelial barrier function. Our goal is to establish new grounds on the development of efficient countermeasures against Acute Respiratory Distress Syndrome (ARDS), which has been associated with thousands of deaths worldwide due to COVID-19. Herein we demonstrate in vivo that GHRHAnt suppresses LPS-induced increase in bronchoalveolar lavage fluid (BALF) protein concentration, thus protecting the lungs against edema and inflammation.
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Affiliation(s)
- Mohammad S Akhter
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana Monroe, 1800 Bienville Drive, Monroe, LA, 71201, USA
| | - Khadeja-Tul Kubra
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana Monroe, 1800 Bienville Drive, Monroe, LA, 71201, USA
| | - Mohammad A Uddin
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana Monroe, 1800 Bienville Drive, Monroe, LA, 71201, USA
| | - Seetharama Jois
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana Monroe, 1800 Bienville Drive, Monroe, LA, 71201, USA
| | - Nektarios Barabutis
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana Monroe, 1800 Bienville Drive, Monroe, LA, 71201, USA.
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10
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Liu X, Yang J, Li J, Xu C, Jiang W. Vanillin Attenuates Cadmium-Induced Lung Injury Through Inhibition of Inflammation and Lung Barrier Dysfunction Through Activating AhR. Inflammation 2021; 44:2193-2202. [PMID: 34085161 DOI: 10.1007/s10753-021-01492-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 05/17/2021] [Accepted: 05/26/2021] [Indexed: 10/21/2022]
Abstract
Vanillin, the main constituents of vanillin beans, has been reported to exhibit anti-inflammatory effects. However, the effects of vanillin on the cadmium-induced lung injury are still unclear. Therefore, we assay whether vanillin has potential preventive activity on cadmium-induced lung injury in mice. Mice were given vanillin (5, 10, 20 mg/kg) and treated with cadmium for 7 days. The detection data of vanillin on lung tissue changes were analyzed after the cadmium treatment. The results displayed that vanillin obviously decreased the lung histological alterations and myeloperoxidase (MPO) activity. Vanillin also suppressed the levels of TNF-α, IL-1β, and IL-6 in BALF. Furthermore, vanillin prevented cadmium-induced NF-κB activation and upregulation the expression of tight junction protein ZO-1 and occludin. In addition, vanillin significantly increased the expression of aryl hydrocarbon receptor (AhR), and inhibition of AhR by its agonist could reverse the protective effects of vanillin on cadmium-induced lung injury. To sum up, vanillin could be a potential drug for the treatment of cadmium-induced lung injury.
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Affiliation(s)
- Xueshibojie Liu
- Department of Head and Neck Surgery, The Second Affiliated Hospital of Jilin University, Changchun, China
| | - Jinghui Yang
- Department of Hepatobiliary Pancreatic Surgery, China-Japan Friendship Hospital of Jilin University, Changchun, China
| | - Jinqiu Li
- Department of Head and Neck Surgery, The Second Affiliated Hospital of Jilin University, Changchun, China
| | - Chengbi Xu
- Department of Head and Neck Surgery, The Second Affiliated Hospital of Jilin University, Changchun, China
| | - Wei Jiang
- Department of Anesthesiology, The Second Affiliated Hospital of Jilin University, Changchun, China.
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11
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Chen L, Li L, Song Y, Lv T. Blocking SphK1/S1P/S1PR1 Signaling Pathway Alleviates Lung Injury Caused by Sepsis in Acute Ethanol Intoxication Mice. Inflammation 2021; 44:2170-2179. [PMID: 34109517 PMCID: PMC8189277 DOI: 10.1007/s10753-021-01490-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 05/12/2021] [Accepted: 05/25/2021] [Indexed: 12/11/2022]
Abstract
Acute ethanol intoxication increases the risk of sepsis and aggravates the symptoms of sepsis and lung injury. Therefore, this study aimed to explore whether sphingosine kinase 1 (SphK1)/sphingosine-1-phosphate (S1P)/S1P receptor 1 (S1PR1) signaling pathway functions in lung injury caused by acute ethanol intoxication-enhanced sepsis, as well as its underlying mechanism. The acute ethanol intoxication model was simulated by intraperitoneally administering mice with 32% ethanol solution, and cecal ligation and puncture (CLP) was used to construct the sepsis model. The lung tissue damage was observed by hematoxylin-eosin (H&E) staining, and the wet-to-dry (W/D) ratio was used to evaluate the degree of pulmonary edema. Inflammatory cell counting and protein concentration in bronchoalveolar lavage fluid (BALF) were, respectively, detected by hemocytometer and bicinchoninic acid (BCA) method. The levels of tumor necrosis factor (TNF)-α, interleukin (IL)-6, IL-1β, and IL-18 in BALF were detected by their commercial enzyme-linked immunosorbent assay (ELISA) kits. The myeloperoxidase (MPO) activity and expression of apoptosis-related proteins and SphK1/S1P/S1PR1 pathway-related proteins were, respectively, analyzed by MPO ELISA kit and Western blot analysis. The cell apoptosis in lung tissues was observed by TUNEL assay. Acute ethanol intoxication (EtOH) decreased the survival rate of mice and exacerbated the lung injury caused by sepsis through increasing pulmonary vascular permeability, neutrophil infiltration, release of inflammatory factors, and cell apoptosis. In addition, EtOH could activate the SphK1/S1P/S1PR1 pathway in CLP mice. However, PF-543, as a specific inhibitor of SphK1, could partially reverse the deleterious effects on lung injury of CLP mice. PF-543 alleviated lung injury caused by sepsis in acute ethanol intoxication rats by suppressing the SphK1/S1P/S1PR1 signaling pathway.
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Affiliation(s)
- Liang Chen
- Department of Respiratory and Critical Care Medicine, The Affiliated No.1 People's Hospital of Nanjing Medical University, Huaian, 223300, Jiangsu, China
| | - Lingling Li
- Department of Respiratory and Critical Care Medicine, The Affiliated No.1 People's Hospital of Nanjing Medical University, Huaian, 223300, Jiangsu, China
| | - Yong Song
- Jinling Clinical Medical College, Nanjing Medical University, 305 Zhongshan East Road, Xuanwu District, Nanjing City, 210002, Jiangsu Province, China.
| | - Tangfeng Lv
- Jinling Clinical Medical College, Nanjing Medical University, 305 Zhongshan East Road, Xuanwu District, Nanjing City, 210002, Jiangsu Province, China.
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12
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Tang Y, Ding F, Wu C, Liu B. hucMSC Conditioned Medium Ameliorate Lipopolysaccharide-Induced Acute Lung Injury by Suppressing Oxidative Stress and Inflammation via Nrf2/NF- κB Signaling Pathway. Anal Cell Pathol (Amst) 2021; 2021:6653681. [PMID: 34426780 PMCID: PMC8380155 DOI: 10.1155/2021/6653681] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 07/09/2021] [Accepted: 08/03/2021] [Indexed: 12/23/2022] Open
Abstract
Acute lung injury (ALI) is a common clinical syndrome in the cardiac intensive care unit with a high mortality rate. Inflammation and oxidative stress have been reported to play a crucial role in the development of ALI. Previous studies have shown that human umbilical cord mesenchymal stem cells (hucMSCs) have anti-inflammatory and antioxidative effects in various diseases. However, the anti-inflammatory and antioxidative effects of the hucMSC conditioned medium (CM) on LPS-induced ALI remain unclear. Therefore, in this study, we assessed whether the hucMSC conditioned medium could attenuate LPS-induced ALI and the underlying mechanisms. Mice were randomly divided into four groups: the control group, PBS group, LPS+PBS group, and LPS+CM group. The lung histopathology and bronchoalveolar lavage fluid (BALF) were analyzed after intervention. The Nrf2/NF-κB signaling pathway and its downstream target genes were tested, and the cytokines and growth factors in CM were also measured. The results showed that CM significantly attenuated the histological alterations; decreased the wet/dry weight ratio; reduced the levels of MPO, MDA and ROS; increased SOD and GSH activity; and downregulated the level of proinflammatory cytokines such as IL-1β, IL-6, and TNF-α. Furthermore, CM promoted the expression of Nrf2 and its target genes NQ01, HO-1, and GCLC and inhibited the expression of NF-κB and its target genes IL-6, IL-1β, and TNF-α. These effects may be closely related to the large amounts of cytokines and growth factors in the CM. In conclusion, our results demonstrated that CM could attenuate LPS-induced ALI, probably due to inhibition of inflammation and oxidative stress via the Nrf2/NF-κB signaling pathway.
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Affiliation(s)
- Yue Tang
- Department of Cardiothoracic Surgery; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Pediatrics; Chongqing Engineering Research Center of Stem Cell Therapy, Chongqing Medical University, Chongqing, China
| | - Fengxia Ding
- Chongqing Key Laboratory of Pediatrics; Chongqing Engineering Research Center of Stem Cell Therapy, Chongqing Medical University, Chongqing, China
- Department of Respiratory Medicine; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Chun Wu
- Department of Cardiothoracic Surgery; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Bo Liu
- Department of Cardiothoracic Surgery; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Pediatrics; Chongqing Engineering Research Center of Stem Cell Therapy, Chongqing Medical University, Chongqing, China
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13
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Li HX, Liang XY, Wu JH, Yuan YP, Gao Y, Cai SH. Simvastatin attenuates acute lung injury by activation of A2B adenosine receptor. Toxicol Appl Pharmacol 2021; 422:115460. [PMID: 33774062 DOI: 10.1016/j.taap.2021.115460] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 01/13/2021] [Accepted: 02/10/2021] [Indexed: 12/31/2022]
Abstract
To explore the protective mechanism of simvastatin in acute lung injury (ALI), the lipopolysaccharide (LPS) induced (5 mg/kg) ALI rat model was used to examine the effects of simvastatin. Following simvastatin treatment, the histopathological evaluation of lung tissues was made using hematoxylin and eosin (H&E) staining. Also, myeloperoxidase (MPO) activity and the levels of tumor necrosis factor-alpha (TNF-α), interleukin-1 beta (IL-1β), and IL-10 were determined by ELISA. Blood gas analyses of arterial blood samples were performed to assess the pulmonary gas exchange. Moreover, the neutrophil count and total protein content were determined in the bronchoalveolar lavage (BAL) fluid. The ratio of wet lung to dry lung (W/D) and the alveolar fluid clearance (AFC) were calculated to estimate the severity of edema. Lastly, the levels of A2BAR, CFTR, claudin4, and claudin18 were also measured by qRT-PCR and Western blotting. Simvastatin treatment, in a dose-related manner, markedly improved the lung histological injury and decreased the levels of TNF-α, IL-1β, and increased IL-10 in LPS induced ALI. Also, pulmonary neutrophil count was alleviated. Besides, a decreased ratio of W/D lung also confirmed the simvastatin intervention. Notably, simvastatin reduced the levels of A2BAR, CFTR, and claudin18 but upregulated claudin4 in lung tissues. Additionally, treatment with PSB1115, an antagonist of A2BAR, countered the protective effect of simvastatin in ALI. Our study demonstrates that simvastatin has a protective effect against LPS-induced ALI by activating A2BAR and should be exploited as a novel therapeutic target for the treatment of ALI.
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Affiliation(s)
- Hong-Xia Li
- Department of Respiratory and Critical Care Medicine, The Second Medical Center, National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing 100853, China
| | - Xiao-Yan Liang
- Department of Respiratory Medicine in Special Wards, Chinese PLA General Hospital, Beijing 100853, China
| | - Jiong-He Wu
- Department of Respiratory and Critical Care Medicine, The Second Medical Center, National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing 100853, China
| | - Ya-Ping Yuan
- Department of Respiratory and Critical Care Medicine, The Second Medical Center, National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing 100853, China
| | - Yue Gao
- Beijing Institute of Radiation Medicine, AMMS, Haidian, Beijing 100039, China.
| | - Shao-Hua Cai
- Department of Respiratory Medicine in Special Wards, Chinese PLA General Hospital, Beijing 100853, China.
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14
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Li Y, Wang N, Ma Z, Wang Y, Yuan Y, Zhong Z, Hong Y, Zhao M. Lipoxin A4 protects against paraquat‑induced acute lung injury by inhibiting the TLR4/MyD88‑mediated activation of the NF‑κB and PI3K/AKT pathways. Int J Mol Med 2021; 47:86. [PMID: 33760150 PMCID: PMC7992923 DOI: 10.3892/ijmm.2021.4919] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 02/26/2021] [Indexed: 12/25/2022] Open
Abstract
Paraquat (PQ) causes serious oxidative stress and inflammatory responses, particularly to the lungs. Since lipoxin A4 (LXA4) functions as an anti‑inflammatory mediator, the present study aimed to explore its effects on PQ‑induced acute lung injury (ALI) and to elucidate the possible underlying mechanisms. PQ was administered to male SD rats and RAW264.7 cells to establish a model of poisoning, and LXA4 was used as an intervention drug. LXA4 treatment attenuated PQ‑induced lung injury, and this was accompanied by decreased tumor necrosis factor (TNF)‑α and interleukin (IL)‑1β secretion levels, and reduced oxidative stress damage. Additionally, LXA4 treatment inhibited the activation of the inflammation‑related signaling molecules, Toll‑like receptor 4 (TLR4), myeloid differentiation primary response 88 (MyD88), nuclear factor (NF)‑κB p65, p‑phosphoinositide 3‑kinase (PI3K) and p‑AKT. Furthermore, the in vitro experiments further confirmed that the beneficial effects of LXA4 on PQ‑induced damage were TLR4‑dependent. Hence, the present study demonstrated that LXA4 attenuated PQ‑induced toxicity in lung tissue and RAW264.7 macrophages, and that this protective effect may be closely related to the mitigation of inflammatory responses, oxidative stress damage and the TLR4/MyD88‑mediated activation of the PI3K/AKT/NF‑κB pathway.
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Affiliation(s)
- Yuhua Li
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Na Wang
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
- Occupational Disease and Occupational Health Prevention and Control Institute, Liaoning Center for Disease Control and Prevention, Shenyang, Liaoning 110004, P.R. China
| | - Zhongliang Ma
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Yunwen Wang
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Yuan Yuan
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Zhitao Zhong
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Yi Hong
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Min Zhao
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
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15
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Ricardo-da-Silva FY, Armstrong R, Vidal-Dos-Santos M, Correia CDJ, Coutinho E Silva RDS, da Anunciação LF, Moreira LFP, Leuvenink HGD, Breithaupt-Faloppa AC. 17β-Estradiol Treatment Protects Lungs Against Brain Death Effects in Female Rat Donor. Transplantation 2021; 105:775-784. [PMID: 33031230 DOI: 10.1097/tp.0000000000003467] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Brain death (BD) affects the viability of lungs for transplantation. A correlation exists between high-lung inflammation after BD and the decrease in female sex hormones, especially estradiol. Therefore, we investigated the effects of 17β-estradiol (E2) treatment on the lungs of female brain dead rats. METHODS Female Wistar rats were divided into 4 groups: BD (submitted to BD for 6 h), sham (false operated), E2-T0 (treated with E2 immediately after BD; 50 μg/mL, 2 mL/h), and E2-T3 (treated with E2 after 3 h of BD; 50 μg/mL, 2 mL/h). Lung edema, hemorrhage, and leukocyte infiltration were analyzed. Adhesion molecules were evaluated, and analysis of NO synthase gene and protein expression was performed using real-time PCR and immunohistochemistry, respectively. Release of chemokines and matrix degradation in the lungs was analyzed. RESULTS BD increased leukocyte infiltration, as shown by intravital microscopy (P = 0.017), bronchoalveolar lavage cell count (P = 0.016), the release of inflammatory mediators (P = 0.02), and expression of adhesion molecules. BD also increased microvascular permeability and the expression and activity of matrix metalloproteinase-9 in the lungs. E2 treatment reduced leukocyte infiltration, especially in the E2-T3 group, release of inflammatory mediators, adhesion molecules, and matrix metalloproteinase activity in the lungs. CONCLUSIONS E2 treatment was successful in controlling the lung inflammatory response in females submitted to BD. Our results suggest that E2 directly decreases the release of chemokines, restraining cell traffic into the lungs. Thus, E2 has a therapeutic potential, and its role in improving donor lung quality should be explored further.
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Affiliation(s)
- Fernanda Yamamoto Ricardo-da-Silva
- Laboratorio de Cirurgia Cardiovascular e Fisiopatologia da Circulação (LIM-11), Instituto do Coração (InCor), Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Roberto Armstrong
- Laboratorio de Cirurgia Cardiovascular e Fisiopatologia da Circulação (LIM-11), Instituto do Coração (InCor), Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Marina Vidal-Dos-Santos
- Laboratorio de Cirurgia Cardiovascular e Fisiopatologia da Circulação (LIM-11), Instituto do Coração (InCor), Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Cristiano de Jesus Correia
- Laboratorio de Cirurgia Cardiovascular e Fisiopatologia da Circulação (LIM-11), Instituto do Coração (InCor), Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Raphael Dos Santos Coutinho E Silva
- Laboratorio de Cirurgia Cardiovascular e Fisiopatologia da Circulação (LIM-11), Instituto do Coração (InCor), Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Lucas Ferreira da Anunciação
- Laboratorio de Cirurgia Cardiovascular e Fisiopatologia da Circulação (LIM-11), Instituto do Coração (InCor), Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Luiz Felipe Pinho Moreira
- Laboratorio de Cirurgia Cardiovascular e Fisiopatologia da Circulação (LIM-11), Instituto do Coração (InCor), Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | | | - Ana Cristina Breithaupt-Faloppa
- Laboratorio de Cirurgia Cardiovascular e Fisiopatologia da Circulação (LIM-11), Instituto do Coração (InCor), Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
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Li Q, Hu L, Li J, Yu P, Hu F, Wan B, Xu M, Cheng H, Yu W, Jiang L, Shi Y, Li J, Duan M, Long Y, Liu WT. Hydrogen Attenuates Endotoxin-Induced Lung Injury by Activating Thioredoxin 1 and Decreasing Tissue Factor Expression. Front Immunol 2021; 12:625957. [PMID: 33767697 PMCID: PMC7985449 DOI: 10.3389/fimmu.2021.625957] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 02/18/2021] [Indexed: 01/19/2023] Open
Abstract
Endotoxin-induced lung injury is one of the major causes of death induced by endotoxemia, however, few effective therapeutic options exist. Hydrogen inhalation has recently been shown to be an effective treatment for inflammatory lung injury, but the underlying mechanism is unknown. In the current study we aim to investigate how hydrogen attenuates endotoxin-induced lung injury and provide reference values for the clinical application of hydrogen. LPS was used to establish an endotoxin-induced lung injury mouse model. The survival rate and pulmonary pathologic changes were evaluated. THP-1 and HUVECC cells were cultured in vitro. The thioredoxin 1 (Trx1) inhibitor was used to evaluate the anti-inflammatory effects of hydrogen. Hydrogen significantly improved the survival rate of mice, reduced pulmonary edema and hemorrhage, infiltration of neutrophils, and IL-6 secretion. Inhalation of hydrogen decreased tissue factor (TF) expression and MMP-9 activity, while Trx1 expression was increased in the lungs and serum of endotoxemia mice. LPS-stimulated THP-1 and HUVEC-C cells in vitro and showed that hydrogen decreases TF expression and MMP-9 activity, which were abolished by the Trx1 inhibitor, PX12. Hydrogen attenuates endotoxin-induced lung injury by decreasing TF expression and MMP-9 activity via activating Trx1. Targeting Trx1 by hydrogen may be a potential treatment for endotoxin-induced lung injury.
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Affiliation(s)
- Qian Li
- Department of Anesthesiology, Jiangning Hospital Affiliated to Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, Nanjing, China
- Department of Anesthesiology, Jinling College Affiliated to Nanjing Medical University, Nanjing, China
| | - Liang Hu
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, Nanjing, China
| | - Juan Li
- Department of Anesthesiology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Pan Yu
- Department of Burn and Plastic Surgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Fan Hu
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, Nanjing, China
| | - Bing Wan
- Department of Anesthesiology, Jiangning Hospital Affiliated to Nanjing Medical University, Nanjing, China
| | - Miaomiao Xu
- Department of Anesthesiology, Jinling College Affiliated to Nanjing Medical University, Nanjing, China
| | - Huixian Cheng
- Department of Anesthesiology, Jinling Hospital, The First School of Clinical Medicine, Southern Medical University, Nanjing, China
| | - Wanyou Yu
- Department of Anesthesiology, Jiangning Hospital Affiliated to Nanjing Medical University, Nanjing, China
| | - Liping Jiang
- Department of Anesthesiology, Jiangning Hospital Affiliated to Nanjing Medical University, Nanjing, China
| | - Yadan Shi
- Department of Anesthesiology, Jiangning Hospital Affiliated to Nanjing Medical University, Nanjing, China
| | - Jincan Li
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, Nanjing, China
| | - Manlin Duan
- Department of Anesthesiology, Jinling College Affiliated to Nanjing Medical University, Nanjing, China
- Department of Anesthesiology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
- Department of Anesthesiology, Jinling Hospital, The First School of Clinical Medicine, Southern Medical University, Nanjing, China
- Department of Anesthesiology, Guangdong Provincial People's Hospital, Guangzhou, China
| | - Yun Long
- Department of Anesthesiology, Jiangning Hospital Affiliated to Nanjing Medical University, Nanjing, China
| | - Wen-Tao Liu
- Department of Anesthesiology, Jiangning Hospital Affiliated to Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, Nanjing, China
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17
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Zheng F, Zhu J, Zhang W, Fu Y, Lin Z. Thal protects against paraquat-induced lung injury through a microRNA-141/HDAC6/IκBα-NF-κB axis in rat and cell models. Basic Clin Pharmacol Toxicol 2021; 128:334-347. [PMID: 33015978 PMCID: PMC7894280 DOI: 10.1111/bcpt.13505] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 09/18/2020] [Accepted: 09/25/2020] [Indexed: 12/16/2022]
Abstract
The protective functions of thalidomide in paraquat (PQ)-induced injury have been reported. But the mechanisms remain largely unknown. In this research, a PQ-treated rat model was established and further treated with thalidomide. Oedema and pathological changes, oxidative stress, inflammation, fibrosis and cell apoptosis in rat lungs were detected. A PQ-treated RLE-6TN cell model was constructed, and the viability and apoptosis rate of cells were measured. Differentially expressed microRNAs (miRNAs) after thalidomide administration were screened out. Binding relationship between miR-141 and histone deacetylase 6 (HDAC6) was validated. Altered expression of miR-141 and HDAC6 was introduced to identify their involvements in thalidomide-mediated events. Consequently, thalidomide administration alone exerted no damage to rat lungs; in addition it reduced PQ-induced oedema. The oxidative stress, inflammation and cell apoptosis in rat lungs were reduced by thalidomide. In RLE-6TN cells, thalidomide increased cell viability and decreased apoptosis. miR-141 was responsible for thalidomide-mediated protective events by targeting HDAC6. Overexpression of HDAC6 blocked the protection of thalidomide against PQ-induced injury via activating the IkBα-NF-κB signalling pathway. Collectively, this study evidenced that thalidomide protects lung tissues from PQ-induced injury through a miR-141/HDAC6/IkBα-NF-κB axis.
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Affiliation(s)
- Fenshuang Zheng
- Department of Emergency MedicineSecond People's Hospital of Yunnan ProvinceKunmingChina
| | - Junbo Zhu
- Department of Emergency MedicineSecond People's Hospital of Yunnan ProvinceKunmingChina
| | - Wei Zhang
- Department of Emergency MedicineSecond People's Hospital of Yunnan ProvinceKunmingChina
| | - Yangshan Fu
- Department of Emergency MedicineSecond People's Hospital of Yunnan ProvinceKunmingChina
| | - Zhaoheng Lin
- Department of Critical Care MedicinePeople's Hospital of Xishuangbanna Dai Nationality Autonomous PrefecturePingpongChina
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Wu Y, Xiao W, Pei C, Wang M, Wang X, Huang D, Wang F, Wang Z. Astragaloside IV alleviates PM2.5-induced lung injury in rats by modulating TLR4/MyD88/NF-κB signalling pathway. Int Immunopharmacol 2021; 91:107290. [PMID: 33383446 DOI: 10.1016/j.intimp.2020.107290] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 11/25/2020] [Accepted: 12/07/2020] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Astragaloside IV (AS IV) is antioxidant and anti-inflammatory product, which is extracted from the Chinese herb Astragalus membranaceus. It is widely used in a variety of inflammatory diseases. The research was to explored the protective effects of AS IV against lung injury induced by particulate matter 2.5 (PM2.5) in vivo. SUBJECTS AND METHODS Thirty-five male Sprague-Dawley rats were randomly divided into five groups (n=7 per group). (1) Normal saline group (NS), (2) AS IV group (AS) (100 mg/kg), (3) PM2.5 group (PM2.5), (4) PM2.5 + AS IV group (ASL) (50 mg/kg), and (5) PM2.5 + AS IVgroup (ASH) (100 mg/kg). Rats were pre-treated with AS IV intraperitoneally (50 and 100 mg/kg/day) for three days. Then, PM2.5 (7.5 mg/kg) was given by intratracheal instillation to induce lung injury. Six hours after PM2.5 stimulation, the rats were euthanized. Bronchoalveolar lavage fluid (BALF) was collected for assay of cytokines. Lung tissue was collected for oxidative stress, histology, immunohistochemistry, transmission electron microscope, and western blot analyses. RESULTS AS IV alleviated PM2.5-induced lung injury by decreasing lung dry-wet ratio, reducing the level of interleukin-6 (IL-6), tumour necrosis factor-alpha (TNF-α), and C-reactive protein (CRP) in BALF, and reduced oxidative stress response in lung tissue. Western blot results revealed that AS-IV regulated the expression of TLR4/MyD88/NF-κB pathway proteins in lung tissues. CONCLUSION AS IV mitigated PM2.5 induced lung injury by regulating the activity of TLR4/MyD88/NF-κB signalling pathway, reducing inflammatory and oxidative stress responses.
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Affiliation(s)
- Yongcan Wu
- Department of Respiratory Medicine, Hospital of Chengdu University of Traditional Chinese Medicine, No. 39 Shi-er-qiao Road, Chengdu 610072, Sichuan Province, People's Republic of China
| | - Wei Xiao
- Department of Respiratory Medicine, Hospital of Chengdu University of Traditional Chinese Medicine, No. 39 Shi-er-qiao Road, Chengdu 610072, Sichuan Province, People's Republic of China
| | - Caixia Pei
- Department of Geriatrics, Hospital of Chengdu University of Traditional Chinese Medicine, No. 39 Shi-er-qiao Road, Chengdu 610072, Sichuan Province, People's Republic of China
| | - Mingjie Wang
- Department of Respiratory Medicine, Hospital of Chengdu University of Traditional Chinese Medicine, No. 39 Shi-er-qiao Road, Chengdu 610072, Sichuan Province, People's Republic of China
| | - Xiaomin Wang
- Department of Respiratory Medicine, Hospital of Chengdu University of Traditional Chinese Medicine, No. 39 Shi-er-qiao Road, Chengdu 610072, Sichuan Province, People's Republic of China
| | - Demei Huang
- Department of Geriatrics, Hospital of Chengdu University of Traditional Chinese Medicine, No. 39 Shi-er-qiao Road, Chengdu 610072, Sichuan Province, People's Republic of China
| | - Fei Wang
- Department of Geriatrics, Hospital of Chengdu University of Traditional Chinese Medicine, No. 39 Shi-er-qiao Road, Chengdu 610072, Sichuan Province, People's Republic of China
| | - Zhenxing Wang
- Department of Respiratory Medicine, Hospital of Chengdu University of Traditional Chinese Medicine, No. 39 Shi-er-qiao Road, Chengdu 610072, Sichuan Province, People's Republic of China.
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Lin Y, Lu Q, Chen C, Wang B, Guo L, Xie J, Chen C, Huang L, Dong L. A synthetic chalcone derivative, compound 39, alleviates lipopolysaccharide-induced acute lung injury in mice. Eur J Pharmacol 2021; 891:173730. [PMID: 33188742 DOI: 10.1016/j.ejphar.2020.173730] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Revised: 11/06/2020] [Accepted: 11/06/2020] [Indexed: 11/22/2022]
Abstract
Our research group has previously synthesized various chalcone analogues. Of these analogues, compound 39 has been shown to exhibit potent antioxidative activities but its anti-inflammatory and anti-apoptosis effects remain unclear. Thus, the present study investigated the in vivo and in vitro effects and mechanisms of compound 39 in lipopolysaccharide (LPS)-induced acute lung injury (ALI). To induce ALI, the mice received LPS via a tracheal instillation 6 h after intragastric administration of compound 39 or vehicle. Histological changes, the lung wet/dry weight ratio, and the amounts of protein and inflammatory cells in the broncho-alveolar lavage (BAL) fluid were assessed after 24 h. Additionally, to determine its underlying mechanisms, Western blot and immunofluorescence analyses were used. Moreover, the in vitro effects of compound 39 were also investigated. In the in vivo experiment, compound 39 markedly alleviated histopathological alterations, lung edema, and protein leakage, and exhibited potent anti-inflammatory effects. In the in vitro experiments, compound 39 dose-dependently reduced the levels of pro-inflammatory cytokines and reactive oxygen species. The results suggested that the anti-inflammatory effects of compound 39 were due to suppression of the mitogen-activated protein kinase (MAPK)/nuclear factor κB (NF-κB) pathway. Compound 39 also enhanced the protein levels of Bcl-2 and reduced the protein levels of Bax and cleaved caspase-3. The present study confirmed the anti-inflammatory, oxy-radical prohibitive, and anti-apoptosis activities of compound 39 against LPS-induced tissue and cell damage, and revealed the mechanisms underlying those processes.
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Affiliation(s)
- Yuting Lin
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Qingdi Lu
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Chaolei Chen
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Beibei Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Lisha Guo
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jingwen Xie
- Department of Pharmacy, Pharmacy School, Wenzhou Medical University, Wenzhou, China
| | - Chengshui Chen
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Lili Huang
- Department of Pharmacy, Ningbo Medical Centre Lihuili Hospital, Ningbo, China.
| | - Li Dong
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.
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Yang A, Liu B. May sevoflurane prevent the development of neurogenic pulmonary edema and improve the outcome? Or as a new sedation method for severe brain injury patients. Med Hypotheses 2020; 137:109538. [PMID: 31911369 DOI: 10.1016/j.mehy.2019.109538] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 12/16/2019] [Accepted: 12/19/2019] [Indexed: 02/05/2023]
Abstract
Neurogenic pulmonary edema (NPE) is a life-threatening complication that develops rapidly and dramatically after injury to the central nervous system (CNS). Severe primary brain injury and subsequent secondary brain injury cascade events are thought to be involved in the development of NPE. Activation of the sympathetic nervous system and release of vasoactive substances are also essential prerequisites for NPE. We hypothesize that sevoflurane may be an effective treatment for preventing the development of NPE. Sevoflurane may play a role in protecting brain and lung tissue after acute brain injury through its sympatholytic, antioxidative, ion channel stabilizing, anti-inflammatory, anti-apoptotic, and pulmonary protection effects. It has the potential to be used as a sedative in the neurosurgical intensive care unit (NICU), which can help maintain nervous system and cardiopulmonary function in patients with acute brain injury to improve prognosis. Sevoflurane also has the advantages of fast induction of anesthesia, rapid drug metabolism, little interference to the cardiovascular system, and controllable depth of anesthesia. If our hypothesis is supported by further experiments, use of sevoflurane may open a new door for the treatment of acute brain injury and NPE.
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Affiliation(s)
- Aobing Yang
- Department of Neurosurgery, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong 515000, China
| | - Bin Liu
- Department of Neurosurgery, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong 515000, China.
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21
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Badamjav R, Sonom D, Wu Y, Zhang Y, Kou J, Yu B, Li F. The protective effects of Thalictrum minus L. on lipopolysaccharide-induced acute lung injury. J Ethnopharmacol 2020; 248:112355. [PMID: 31669667 DOI: 10.1016/j.jep.2019.112355] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 10/12/2019] [Accepted: 10/24/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Thalictrum minus L., a Mongolian folk medicinal plant, was applied for the treatment of bacterial and fungal infection, tuberculosis and lung inflammation. AIM OF THE STUDY The present work aims to elucidate the protective effects of Thalictrum minus L.(TML) against lipopolysaccharide (LPS)-induced acute lung injury and the underlying mechanisms. METHODS The mice model of acute lung injury was induced by LPS via endotracheal drip, and TML (10, 20, 40 mg/kg) were administered orally 1 h prior to LPS. The efficacy and molecular mechanisms in the presence or absence of TML were investigated. RESULTS We demonstrated that treatment with TML aqueous extract protected the mice from acute lung injury induced by LPS administration. TML significantly inhibited weight loss in mice, decreased the lung wet to dry weight (W/D) ratios and attenuated lung histopathological changes, such as infiltration of inflammatory cells and coagulation, pulmonary edema. Furthermore, we found that TML markedly reduced the LPS-induced inflammatory cytokines including tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β), decreased nitric oxide (NO), and increased superoxide dismutase (SOD) in bronchoalveolar lavage fluid (BALF), and effectively ameliorated LPS-induced increased total protein, leukocyte and macrophages in BALF. In addition, TML pronouncedly suppressed the activation of the MAPKs p38-NLRP3/caspase-1 and COX2, increased the expression of p-AMPK-Nrf2, and suppressed the expression of KEAP, apoptotic-related protein as well as autophagy. CONCLUSIONS These results suggested that TML ameliorated LPS-induced acute lung injury by inhibiting the release of inflammatory cytokines and reducing oxidative damage associated with the MAPKs p38-NLRP3/caspase-1 and COX2 signaling pathways, AMPK-Nrf2/KEAP signaling pathways, as well as apoptosis and autophagy.
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Affiliation(s)
- Rentsen Badamjav
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Research Center for Traceability and Standardization of TCMs, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, China.
| | - Dolgor Sonom
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Research Center for Traceability and Standardization of TCMs, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, China.
| | - Yunhao Wu
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Research Center for Traceability and Standardization of TCMs, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, China.
| | - Yuanyuan Zhang
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Research Center for Traceability and Standardization of TCMs, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, China.
| | - Junping Kou
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Research Center for Traceability and Standardization of TCMs, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, China.
| | - Boyang Yu
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Research Center for Traceability and Standardization of TCMs, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, China.
| | - Fang Li
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Research Center for Traceability and Standardization of TCMs, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, China.
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Addis DR, Lambert JA, Ren C, Doran S, Aggarwal S, Jilling T, Matalon S. Vascular Endothelial Growth Factor-121 Administration Mitigates Halogen Inhalation-Induced Pulmonary Injury and Fetal Growth Restriction in Pregnant Mice. J Am Heart Assoc 2020; 9:e013238. [PMID: 32009528 PMCID: PMC7033856 DOI: 10.1161/jaha.119.013238] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 01/07/2020] [Indexed: 12/16/2022]
Abstract
Background Circulating levels of sFLT-1 (soluble fms-like tyrosine kinase 1), the extracellular domain of vascular endothelial growth factor (VEGF) receptor 1, and its ratio to levels of placental growth factor are markers of the occurrence and severity of preeclampsia. Methods and Results C57BL/6 pregnant mice on embryonic day 14.5 (E14.5), male, and non-pregnant female mice were exposed to air or to Br2 at 600 ppm for 30 minutes and were treated with vehicle or with VEGF-121 (100 μg/kg, subcutaneously) daily, starting 48 hours post-exposure. Plasma, bronchoalveolar lavage fluid, lungs, fetuses, and placentas were collected 120 hours post-exposure. In Br2-exposed pregnant mice, there was a time-dependent and significant increase in plasma levels of sFLT-1 which correlated with increases in mouse lung wet/dry weights and bronchoalveolar lavage fluid protein content. Supplementation of exogenous VEGF-121 improved survival and weight gain, reduced lung wet/dry weights, decreased bronchoalveolar lavage fluid protein levels, enhanced placental development, and improved fetal growth in pregnant mice exposed to Br2. Exogenous VEGF-121 administration had no effect in non-pregnant mice. Conclusions These results implicate inhibition of VEGF signaling driven by sFLT-1 overexpression as a mechanism of pregnancy-specific injury leading to lung edema, maternal mortality, and fetal growth restriction after bromine gas exposure.
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Affiliation(s)
- Dylan R. Addis
- Division of Cardiothoracic AnesthesiologyDepartment of Anesthesiology and Perioperative MedicineUniversity of Alabama at BirminghamBirminghamALUSA
- Division of Molecular and Translational BiomedicineDepartment of Anesthesiology and Perioperative MedicineUniversity of Alabama at BirminghamBirminghamALUSA
- UAB Comprehensive Cardiovascular CenterUniversity of Alabama at BirminghamBirminghamALUSA
- University of Alabama School of MedicineBirminghamALUSA
| | - James A. Lambert
- Division of Molecular and Translational BiomedicineDepartment of Anesthesiology and Perioperative MedicineUniversity of Alabama at BirminghamBirminghamALUSA
- Graduate Biomedical SciencesBiochemistry, Structural and Stem Cell Biology ThemeUniversity of Alabama at BirminghamBirminghamALUSA
- University of Alabama School of MedicineBirminghamALUSA
| | - Changchun Ren
- Department of PediatricsDivision of NeonatologyUniversity of Alabama at BirminghamBirminghamALUSA
- University of Alabama School of MedicineBirminghamALUSA
| | - Stephen Doran
- Division of Molecular and Translational BiomedicineDepartment of Anesthesiology and Perioperative MedicineUniversity of Alabama at BirminghamBirminghamALUSA
- University of Alabama School of MedicineBirminghamALUSA
| | - Saurabh Aggarwal
- Division of Molecular and Translational BiomedicineDepartment of Anesthesiology and Perioperative MedicineUniversity of Alabama at BirminghamBirminghamALUSA
- University of Alabama School of MedicineBirminghamALUSA
| | - Tamas Jilling
- Department of PediatricsDivision of NeonatologyUniversity of Alabama at BirminghamBirminghamALUSA
- University of Alabama School of MedicineBirminghamALUSA
| | - Sadis Matalon
- Division of Molecular and Translational BiomedicineDepartment of Anesthesiology and Perioperative MedicineUniversity of Alabama at BirminghamBirminghamALUSA
- UAB Comprehensive Cardiovascular CenterUniversity of Alabama at BirminghamBirminghamALUSA
- University of Alabama School of MedicineBirminghamALUSA
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Cao HY, Yu TH, Han CH, Liu WW, Zhang PX, Tang P. Roflumilast, a phosphodiesterase-4 inhibitor, improves hyperoxia-induced lung injury via anti-inflammation. Undersea Hyperb Med 2020; 47:189-196. [PMID: 32574434 DOI: 10.22462/04.06.2020.3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Roflumilast is an inhibitor of phosphodiesterase-4 (PDE4) and can suppress the hydrolysis of cAMP in inflammatory cells, conferring anti-inflammatory effects. This study aimed to investigate the protective effects of roflumilast on hyperoxia-induced acute lung injury (HALI) in a rat model. Male Sprague-Dawley rats were randomly assigned into: control group; HALI group; 2.5 mg/kg roflumilast group; and 5 mg/kg roflumilast group. Rats were pressurized to 250 kPa with pure oxygen to induce lung injury. In the roflumilast groups, rats were orally administered with roflumilast at 2.5 or 5 mg/kg once before hyperoxia exposure and once daily for two days after exposure. Rats were sacrificed 72 hours after hyperoxia exposure. The lung tissues were collected for the detection of lung water content, inflammatory cytokines and NF-κB/p-NF-κB protein expression, and the bronchoalveolar lavage fluid was harvested for the measurement of protein concentration and lactate dehydrogenase activity. Results showed roflumilast at different doses could significantly reduce lung edema, improve lung pathology and reduce the expression of inflammatory cytokines in the lung. The protective effects seemed to be related to the dose of roflumilast. Our study indicates roflumilast has the potential as a medication for the treatment of HALI.
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Affiliation(s)
- Hong-Ying Cao
- Department of Pathology, The Affiliated No 1 People's Hospital of Jining City, Jining Medical University, Jining City, Shandong, China
| | - Tian-Hua Yu
- Department of Gynecology, Chinese Medicine Hospital of Penglai City, Shandong, China
| | - Cui-Hong Han
- Department of Pathology, The Affiliated No 1 People's Hospital of Jining City, Jining Medical University, Jining City, Shandong, China
| | - Wen-Wu Liu
- Department of Diving and Hyperbaric Medicine, the Naval Medical University, Shanghai, China
| | - Pei-Xi Zhang
- Department of Cardiac Surgery, The Affiliated No 1 People's Hospital of Jining City, Jining Medical University, Jining City, Shandong, China
| | - Peng Tang
- Department of Cardiac Surgery, The Affiliated No 1 People's Hospital of Jining City, Jining Medical University, Jining City, Shandong, China
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24
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Liu B, Chen A, Lan J, Ren L, Wei Y, Gao L. Protective mechanism of 1-methylhydantoin against lung injury induced by paraquat poisoning. PLoS One 2019; 14:e0222521. [PMID: 31560695 PMCID: PMC6764654 DOI: 10.1371/journal.pone.0222521] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 09/02/2019] [Indexed: 12/15/2022] Open
Abstract
Paraquat (PQ), one of the most widely used herbicides worldwide, causes severe toxic effects in humans and animals. 1-methylhydantoin (MH) is an active ingredient of Ranae Oviductus, which has broad pharmacological activities, e.g., eliminating reactive oxygen species and inhibiting inflammation. This study investigated the effects of MH on lung injury induced by PQ. A PQ poisoning model was established by intragastric infusion of PQ (25 mg/kg), and the control group was simultaneously gavaged with the same dose of saline. The MH group was intraperitoneally injected with 100 mg/kg once per day after intragastric infusion of PQ (25 mg/kg) for five consecutive days. All animals were sacrificed on the sixth day, and the lung tissues were dissected for metabolomics analysis. The lactate dehydrogenase (LDH) activity, superoxide dismutase (SOD) activity, TNF-α and malondialdehyde (MDA) content were determined according to the instructions of the detection kit. Compared with that in the control group, the content of LDH, TNF-α and MDA in the lung tissue of the PQ group was significantly higher, and the activity of SOD in the lung tissue was significantly lower (all p<0.05). Compared with that in the control group, the content of LDH, TNF-α and MDA in the MH group was significantly higher, and the activity of SOD was significantly lower (all p<0.05). However, the differences in SOD activity, LDH activity between the PQ and MH groups were not statistically significant (all p > 0.05). There were significant differences in MDA and TNF-α content between the PQ group and MH group (all p<0.05). MH decreased the production of malondialdehyde and TNF-α to protect against the lung injury caused by PQ poisoning, but it had no significant effect on the activity of LDH and SOD. There were significant differences in metabolomics between the MH group and the PQ poisoning group, primarily in bile acid biosynthesis and metabolism of cholesterol, nicotinate, nicotinamide, alanine, aspartate, glutamate, glycine, threonine, serine, phenylalanine and histidine. Therefore, this study highlights that MH has non-invasive mechanisms and may be a promising tool to treat lung injury induced by PQ poisoning.
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Affiliation(s)
- Bo Liu
- The 3 Clinical Department of China Medical University, Shenyang, Liaoning, China
| | - Annan Chen
- The 3 Clinical Department of China Medical University, Shenyang, Liaoning, China
| | - Jinyi Lan
- The 3 Clinical Department of China Medical University, Shenyang, Liaoning, China
| | - Lei Ren
- The 3 Clinical Department of China Medical University, Shenyang, Liaoning, China
| | - Yifan Wei
- School of Public Health, China Medical University, Shenyang, Liaoning, China
| | - Lina Gao
- School of Forensic Medicine, China Medical University, Shenyang, Liaoning,China
- * E-mail:
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Salah SM, Meisenheimer JD, Rao R, Peda JD, Wallace DP, Foster D, Li X, Li X, Zhou X, Vallejo JA, Wacker MJ, Fields TA, Swenson-Fields KI. MCP-1 promotes detrimental cardiac physiology, pulmonary edema, and death in the cpk model of polycystic kidney disease. Am J Physiol Renal Physiol 2019; 317:F343-F360. [PMID: 31091126 PMCID: PMC6732452 DOI: 10.1152/ajprenal.00240.2018] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 05/13/2019] [Accepted: 05/14/2019] [Indexed: 01/05/2023] Open
Abstract
Polycystic kidney disease (PKD) is characterized by slowly expanding renal cysts that damage the kidney, typically resulting in renal failure by the fifth decade. The most common cause of death in these patients, however, is cardiovascular disease. Expanding cysts in PKD induce chronic kidney injury that is accompanied by immune cell infiltration, including macrophages, which we and others have shown can promote disease progression in PKD mouse models. Here, we show that monocyte chemoattractant protein-1 [MCP-1/chemokine (C-C motif) ligand 2 (CCL2)] is responsible for the majority of monocyte chemoattractant activity produced by renal PKD cells from both mice and humans. To test whether the absence of MCP-1 lowers renal macrophage concentration and slows disease progression, we generated genetic knockout (KO) of MCP-1 in a mouse model of PKD [congenital polycystic kidney (cpk) mice]. Cpk mice are born with rapidly expanding renal cysts, accompanied by a decline in kidney function and death by postnatal day 21. Here, we report that KO of MCP-1 in these mice increased survival, with some mice living past 3 mo. Surprisingly, however, there was no significant difference in renal macrophage concentration, nor was there improvement in cystic disease or kidney function. Examination of mice revealed cardiac hypertrophy in cpk mice, and measurement of cardiac electrical activity via ECG revealed repolarization abnormalities. MCP-1 KO did not affect the number of cardiac macrophages, nor did it alleviate the cardiac aberrancies. However, MCP-1 KO did prevent the development of pulmonary edema, which occurred in cpk mice, and promoted decreased resting heart rate and increased heart rate variability in both cpk and noncystic mice. These data suggest that in this mouse model of PKD, MCP-1 altered cardiac/pulmonary function and promoted death outside of its role as a macrophage chemoattractant.
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Affiliation(s)
- Sally M Salah
- Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, Kansas
- Jared Grantham Kidney Institute, University of Kansas Medical Center, Kansas City, Kansas
| | - James D Meisenheimer
- Jared Grantham Kidney Institute, University of Kansas Medical Center, Kansas City, Kansas
| | - Reena Rao
- Department of Internal Medicine-Division of Nephrology and Hypertension, University of Kansas Medical Center, Kansas City, Kansas
- Jared Grantham Kidney Institute, University of Kansas Medical Center, Kansas City, Kansas
| | - Jacqueline D Peda
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, Kansas
- Jared Grantham Kidney Institute, University of Kansas Medical Center, Kansas City, Kansas
| | - Darren P Wallace
- Department of Internal Medicine-Division of Nephrology and Hypertension, University of Kansas Medical Center, Kansas City, Kansas
- Department of Molecular and Integrative Physiology, University of Kansas Medical Center, Kansas City, Kansas
- Jared Grantham Kidney Institute, University of Kansas Medical Center, Kansas City, Kansas
| | - Dawson Foster
- Jared Grantham Kidney Institute, University of Kansas Medical Center, Kansas City, Kansas
| | - Xiaogang Li
- Department of Internal Medicine-Division of Nephrology and Hypertension, University of Kansas Medical Center, Kansas City, Kansas
- Jared Grantham Kidney Institute, University of Kansas Medical Center, Kansas City, Kansas
- Department of Biochemistry and Molecular Biology, University of Kansas Medical Center, Kansas City, Kansas
| | - Xiaoyan Li
- Department of Internal Medicine-Division of Nephrology and Hypertension, University of Kansas Medical Center, Kansas City, Kansas
- Jared Grantham Kidney Institute, University of Kansas Medical Center, Kansas City, Kansas
| | - Xia Zhou
- Department of Internal Medicine-Division of Nephrology and Hypertension, University of Kansas Medical Center, Kansas City, Kansas
- Jared Grantham Kidney Institute, University of Kansas Medical Center, Kansas City, Kansas
| | - Julian A Vallejo
- Department of Biomedical Sciences, School of Medicine, University of Missouri-Kansas City, Kansas City, Missouri
- Department of Oral and Craniofacial Sciences, School of Dentistry, University of Missouri-Kansas City, Kansas City, Missouri
| | - Michael J Wacker
- Department of Biomedical Sciences, School of Medicine, University of Missouri-Kansas City, Kansas City, Missouri
| | - Timothy A Fields
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, Kansas
- Jared Grantham Kidney Institute, University of Kansas Medical Center, Kansas City, Kansas
| | - Katherine I Swenson-Fields
- Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, Kansas
- Jared Grantham Kidney Institute, University of Kansas Medical Center, Kansas City, Kansas
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Gao J, Feng S, Li Y. Prolonged low-dose cyclophosphamide treatment after pulse therapy attenuates lung injury in rats with paraquat intoxication. Korean J Intern Med 2018; 33:1137-1142. [PMID: 29843494 PMCID: PMC6234390 DOI: 10.3904/kjim.2017.334] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Accepted: 02/02/2018] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND/AIMS This study tested the hypothesis that prolonged low-dose cyclophosphamide (CTX) treatment after pulse therapy attenuate paraquat (PQ)-induced lung injury in rats. METHODS PQ (25 mg/kg) was administered intraperitoneally to induce PQ-intoxicated rat model. The rats were randomly divided into four groups: control group (1 mL/day saline solution for 14 days), PQ group (1 mL/day saline solution for 14 days after PQ exposure), pulse group (15 mg/kg/day CTX in 1 mL of saline solution for 2 days and subsequent 1 mL/day saline solution for 12 days), and prolonged low-dose group (15 mg/kg/day CTX in 1 mL of saline solution for 2 days and subsequent 1.5 mg/kg/day CTX in 1 mL of saline solution for 12 days). A 14-day follow-up was conducted to determine the survival rat, and lung hydroxyproline (HYP), wet-to-dry weight ratios (W/Dc) and histopathological changes were evaluated. RESULTS Results showed similar survival rate (55% vs. 50%, p > 0.05) between prolonged low-dose and pulse groups. Lung W/Dc (4.94 ± 0.38 vs. 5.47 ± 0.28, p < 0.01), HYP (3.34 ± 0.29 µg/mg vs. 3.65 ± 0.19 µg/mg, p < 0.001), and fibrosis score (2.69 ± 0.84 vs. 3.13 ± 0.63, p < 0.05) were lower in prolonged low-dose group than those in the pulse group. CONCLUSION These findings suggested prolonged low-dose CTX treatment after pulse therapy could attenuate PQ-induced lung injury in rats.
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Affiliation(s)
| | | | - Yong Li
- Department of Emergency, Cangzhou Central Hospital, Cangzhou, China
- Correspondence to Yong Li, M.D. Department of Emergency, Cangzhou Central Hospital, No. 16 Xinhua Rd, Yunhe Dist, Cangzhou 061000, China Tel: +86-133-3336-7871 Fax: +86-317-207-5685 E-mail:
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Poole LG, Massey VL, Siow DL, Torres-Gonzáles E, Warner NL, Luyendyk JP, Ritzenthaler JD, Roman J, Arteel GE. Plasminogen Activator Inhibitor-1 Is Critical in Alcohol-Enhanced Acute Lung Injury in Mice. Am J Respir Cell Mol Biol 2017; 57:315-323. [PMID: 28445073 PMCID: PMC5625219 DOI: 10.1165/rcmb.2016-0184oc] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 04/19/2017] [Indexed: 01/07/2023] Open
Abstract
Chronic alcohol exposure is a clinically important risk factor for the development of acute respiratory distress syndrome, the most severe form of acute lung injury (ALI). However, the mechanisms by which alcohol sensitizes the lung to development of this disease are poorly understood. We determined the role of the antifibrinolytic protein plasminogen activator inhibitor-1 (PAI-1) in alcohol enhancement of experimental endotoxin-induced ALI. Wild-type, PAI-1-/-, and integrin β3-/- mice were fed ethanol-containing Lieber-DeCarli liquid or a control diet for 6 weeks, followed by systemic LPS challenge. LPS administration triggered coagulation cascade activation as evidenced by increased plasma thrombin-antithrombin levels and pulmonary fibrin deposition. Ethanol-exposed animals showed enhanced PAI-1 expression and pulmonary fibrin deposition with coincident exaggeration of pulmonary inflammatory edematous injury. PAI-1 deficiency markedly reduced pulmonary fibrin deposition and greatly reduced inflammation and injury without impacting upstream coagulation. Interestingly, pulmonary platelet accumulation was effectively abolished by PAI-1 deficiency in ethanol/LPS-challenged mice. Moreover, mice lacking integrin αIIBβ3, the primary platelet receptor for fibrinogen, displayed a dramatic reduction in early inflammatory changes after ethanol/LPS challenge. These results indicate that the mechanism whereby alcohol exaggerates LPS-induced lung injury requires PAI-1-mediated pulmonary fibrin accumulation, and suggest a novel mechanism whereby alcohol contributes to inflammatory ALI by enhancing fibrinogen-platelet engagement.
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Affiliation(s)
- Lauren G. Poole
- Department of Pharmacology and Toxicology
- Alcohol Research Center, University of Louisville, Louisville, Kentucky; and
| | - Veronica L. Massey
- Department of Pharmacology and Toxicology
- Alcohol Research Center, University of Louisville, Louisville, Kentucky; and
| | - Deanna L. Siow
- Department of Pharmacology and Toxicology
- Alcohol Research Center, University of Louisville, Louisville, Kentucky; and
| | - Edilson Torres-Gonzáles
- Division of Pulmonary, Critical Care and Sleep Disorders Medicine, Department of Medicine, and
| | - Nikole L. Warner
- Department of Microbiology and Immunology, University of Louisville Health Sciences Center, Louisville, Kentucky
| | - James P. Luyendyk
- Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, Michigan
| | - Jeffrey D. Ritzenthaler
- Division of Pulmonary, Critical Care and Sleep Disorders Medicine, Department of Medicine, and
| | - Jesse Roman
- Division of Pulmonary, Critical Care and Sleep Disorders Medicine, Department of Medicine, and
| | - Gavin E. Arteel
- Department of Pharmacology and Toxicology
- Alcohol Research Center, University of Louisville, Louisville, Kentucky; and
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Warner MA, Welsby IJ, Norris PJ, Silliman CC, Armour S, Wittwer ED, Santrach PJ, Meade LA, Liedl LM, Nieuwenkamp CM, Douthit B, van Buskirk CM, Schulte PJ, Carter RE, Kor DJ. Point-of-care washing of allogeneic red blood cells for the prevention of transfusion-related respiratory complications (WAR-PRC): a protocol for a multicenter randomised clinical trial in patients undergoing cardiac surgery. BMJ Open 2017; 7:e016398. [PMID: 28821525 PMCID: PMC5629697 DOI: 10.1136/bmjopen-2017-016398] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
INTRODUCTION The transfusion-related respiratory complications, transfusion-related acute lung injury (TRALI) and transfusion-associated circulatory overload (TACO), are leading causes of transfusion-related morbidity and mortality. At present, there are no effective preventive strategies with red blood cell (RBC) transfusion. Although mechanisms remain incompletely defined, soluble biological response modifiers (BRMs) within the RBC storage solution may play an important role. Point-of-care (POC) washing of allogeneic RBCs may remove these BRMs, thereby mitigating their impact on post-transfusion respiratory complications. METHODS AND ANALYSIS This is a multicenter randomised clinical trial of standard allogeneic versus washed allogeneic RBC transfusion for adult patients undergoing cardiac surgery testing the hypothesis that POC RBC washing is feasible, safe, and efficacious and will reduce recipient immune and physiologic responses associated with transfusion-related respiratory complications. Relevant clinical outcomes will also be assessed. This investigation will enrol 170 patients at two hospitals in the USA. Simon's two-stage design will be used to assess the feasibility of POC RBC washing. The primary safety outcomes will be assessed using Wilcoxon Rank-Sum tests for continuous variables and Pearson chi-square test for categorical variables. Standard mixed modelling practices will be employed to test for changes in biomarkers of lung injury following transfusion. Linear regression will assess relationships between randomised group and post-transfusion physiologic measures. ETHICS AND DISSEMINATION Safety oversight will be conducted under the direction of an independent Data and Safety Monitoring Board (DSMB). Approval of the protocol was obtained by the DSMB as well as the institutional review boards at each institution prior to enrolling the first study participant. This study aims to provide important information regarding the feasibility of POC washing of allogeneic RBCs and its potential impact on ameliorating post-transfusion respiratory complications. Additionally, it will inform the feasibility and scientific merit of pursuing a more definitive phase II/III clinical trial. REGISTRATION ClinicalTrials.gov registration number is NCT02094118 (Pre-results).
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Affiliation(s)
- Matthew A Warner
- Division of Critical Care, Department of Anesthesiology and Perioperative Medicine, Mayo Clinic Minnesota, Rochester, Minnesota, USA
| | - Ian J Welsby
- Department of Anesthesiology, Duke University Medical Center, Raleigh, North Carolina, USA
| | - Phillip J Norris
- Blood Systems Research Institute,University of California, San Francisco, California, USA
| | | | - Sarah Armour
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Erica D Wittwer
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Paula J Santrach
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Laurie A Meade
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Lavonne M Liedl
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, Minnesota, USA
- Department of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, Minnesota, USA
| | - Chelsea M Nieuwenkamp
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Brian Douthit
- Department of Anesthesiology, Duke University Medical Center, Raleigh, North Carolina, USA
| | | | - Phillip J Schulte
- Department of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, Minnesota, USA
| | - Rickey E Carter
- Department of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, Minnesota, USA
| | - Daryl J Kor
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, Minnesota, USA
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Kral‐Pointner JB, Schrottmaier WC, Horvath V, Datler H, Hell L, Ay C, Niederreiter B, Jilma B, Schmid JA, Assinger A, Mackman N, Knapp S, Schabbauer G. Myeloid but not epithelial tissue factor exerts protective anti-inflammatory effects in acid aspiration-induced acute lung injury. J Thromb Haemost 2017; 15:1625-1639. [PMID: 28509332 PMCID: PMC5575489 DOI: 10.1111/jth.13737] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Indexed: 01/11/2023]
Abstract
Essentials Tissue factor (TF) represents a central link between hemostasis and inflammation. We studied the roles of myeloid and airway epithelial TF in acid-caused acute lung injury (ALI). TF on myeloid cells displays a non-coagulatory role regulating the inflammatory response in ALI. Airway epithelial TF contributes to hemostatic functions, but is dispensable in ALI pathogenesis. SUMMARY Introduction Acute lung injury (ALI) is a life-threatening condition characterized by damaged alveolar-capillary structures and activation of inflammatory and hemostatic processes. Tissue factor (TF) represents a crucial link between inflammation and coagulation, as inflammatory mediators induce myeloid TF expression, and TF initiates extrinsic coagulation. Objective As pulmonary inflammation stimulates TF expression and TF modulates immune responses, we aimed to elucidate its impact on ALI. In particular, we wanted to distinguish the contributions of TF expressed on airway epithelial cells and TF expressed on myeloid cells. Methods Mice with different cell type-specific TF deficiency and wild-type littermates were intratracheally treated with hydrochloric acid, and leukocyte recruitment, cytokine levels, thrombin-antithrombin (TAT) complexes and pulmonary protein-rich infiltrates were analyzed. Results Our data demonstrate that a lack of epithelial TF did not influence acute responses, as bronchoalveolar neutrophil accumulation 8 h after ALI induction was unaltered. However, it led to mild, prolonged inflammation, as pulmonary leukocyte and erythrocyte numbers were still increased after 24 h, whereas those in wild-type mice had returned to basal levels. In contrast, myeloid TF was primarily involved in regulating the acute phase of ALI without affecting local coagulation, as indicated by increased bronchoalveolar neutrophil infiltration, pulmonary interleukin-6 levels, and edema formation, but equal TAT complex formation, 8 h after ALI induction. This augmented inflammatory response associated with myeloid TF deficiency was confirmed in vitro, as lipopolysaccharide-stimulated TF-deficient alveolar macrophages released increased levels of chemokine (C-X-C motif) ligand 1 and tumor necrosis factor-α as compared with wild-type macrophages. Conclusion We conclude that myeloid TF dampens inflammation in acid-induced ALI.
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Affiliation(s)
- J. B. Kral‐Pointner
- Institute for PhysiologyCenter for Physiology and PharmacologyMedical University of ViennaViennaAustria
| | - W. C. Schrottmaier
- Institute for PhysiologyCenter for Physiology and PharmacologyMedical University of ViennaViennaAustria
| | - V. Horvath
- Institute for PhysiologyCenter for Physiology and PharmacologyMedical University of ViennaViennaAustria
| | - H. Datler
- Institute for PhysiologyCenter for Physiology and PharmacologyMedical University of ViennaViennaAustria
| | - L. Hell
- Clinical Division of Hematology and HemostaseologyDepartment of Medicine IMedical University of ViennaViennaAustria
| | - C. Ay
- Clinical Division of Hematology and HemostaseologyDepartment of Medicine IMedical University of ViennaViennaAustria
| | - B. Niederreiter
- Division of RheumatologyInternal Medicine IIIMedical University of ViennaViennaAustria
| | - B. Jilma
- Departments of Clinical PharmacologyDepartment of Medicine IMedical University of ViennaViennaAustria
| | - J. A. Schmid
- Department for Vascular Biology and Thrombosis ResearchCenter for Physiology and PharmacologyMedical University of ViennaViennaAustria
| | - A. Assinger
- Institute for PhysiologyCenter for Physiology and PharmacologyMedical University of ViennaViennaAustria
| | - N. Mackman
- Division of Hematology/Oncology, Thrombosis and Hemostasis ProgramUNC McAllister Heart InstituteUniversity of North CarolinaChapel HillNCUSA
| | - S. Knapp
- CEMMResearch Center for Molecular Medicine of the Austrian Academy of SciencesViennaAustria
- Laboratory of Infection BiologyDepartment of Medicine IMedical University of ViennaViennaAustria
| | - G. Schabbauer
- Institute for PhysiologyCenter for Physiology and PharmacologyMedical University of ViennaViennaAustria
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Puis L, Vandezande E, Vercaemst L, Janssens P, Taverniers Y, Foulon M, Demeyere R, Delcroix M, Daenen W. Pulmonary thromboendarterectomy for chronic thromboembolic pulmonary hypertension. Perfusion 2017; 20:101-8. [PMID: 15918447 DOI: 10.1191/0267659105pf791oa] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Introduction. Pulmonary thromboendarterectomy (PTE) is a surgical procedure which is considered the only effective and potentially curative treatment for chronic thromboembolic pulmonary hypertension (CTEPH). CTEPH is a rare outcome from pulmonary emboli and, when left untreated, will result in right ventricular failure and death. Methods. From June 1999 to November 2003, 40 of these procedures were performed in our institution. Emphasis is placed on multidisciplinarity and cooperation between different medical and surgical disciplines. Perfusion management consists of myocar-dial and cerebral protection, deep hypothermia with multiple periods of circulatory arrest, reperfusion at hypothermia, hemofiltration and cellsaving techniques. Results. Hemodynamic improvement occurs immediately post operation. Mean pulmonary artery pressure decreased from 50±11 to 38±10 mmHg, pulmonary vascular resistance from 1246±482 to 515±294 dynes s/cm5 and cardiac index increased from 1.54±0.54 to 2.63±0.75 L/min per m2. Pump runs had an average duration of 187±29 min, circulatory arrest time was 29±11 min and crossclamp time 36±14 min. Extracorporeal membrane oxygenation can be an ultimate treatment for specific postoperative problems like persistent pulmonary hypertension and/or reperfusion pulmonary edema.
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Affiliation(s)
- Luc Puis
- Department of Extra Corporeal Circulation, UZ Gasthuisberg, KU Leuven, Belgium.
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Wei CY, Sun HL, Yang ML, Yang CP, Chen LY, Li YC, Lee CY, Kuan YH. Protective effect of wogonin on endotoxin-induced acute lung injury via reduction of p38 MAPK and JNK phosphorylation. Environ Toxicol 2017; 32:397-403. [PMID: 26892447 DOI: 10.1002/tox.22243] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 01/13/2016] [Accepted: 01/24/2016] [Indexed: 06/05/2023]
Abstract
Acute lung injury (ALI) is a serious inflammatory disorder which remains the primary cause of incidence and mortality in patients with acute pulmonary inflammation. However, there is still no effective medical strategy available clinically for the improvement of ALI. Wogonin, isolated from roots of Scutellaria baicalensis Georgi, is a common medicinal herb which presents biological and pharmacological effects, including antioxidation, anti-inflammation, and anticancer. Preadministration of wogonin inhibited not only lung edema but also protein leakage into the alveolar space in murine model of lipopolysaccharide (LPS)-induced ALI. Moreover, wogonin not only reduced the expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase (COX)-2 but also inhibited the phosphorylation of mitogen-activated protein kinase (MAPK) induced by LPS. We further found wogonin inhibited the phosphorylation of p38 MAPK and JNK at a concentration lower than ERK. In addition, inhibition of lung edema, protein leakage, expression of iNOS and COX-2, and phosphorylation of p38 MAPK and JNK were all observed in a parallel concentration-dependent manner. These results suggest that wogonin possesses potential protective effect against LPS-induced ALI via downregulation of iNOS and COX-2 expression by blocking phosphorylation of p38 MAPK and JNK. © 2016 Wiley Periodicals, Inc. Environ Toxicol 32: 397-403, 2017.
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Affiliation(s)
- Cheng-Yu Wei
- Department of Neurology, Chang Bing Show Chwan Memorial Hospital, Changhua County, Taiwan, Republic of China
- Department of Neurology, Show Chwan Memorial Hospital, Changhua County, Taiwan, Republic of China
- Department of Exercise and Health Promotion, College of Education, Chinese Culture University, Taipei, Taiwan, Republic of China
| | - Hai-Lun Sun
- Department of Pediatrics, Chung Shan Medical University Hospital, Taichung, Taiwan
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Ming-Ling Yang
- Department of Anatomy, School of Medicine, Chung Shan Medical University, Taichung Taiwan
| | - Ching-Ping Yang
- Department of Biotechology and Laboratory Science in Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Li-You Chen
- Department of Anatomy, School of Medicine, Chung Shan Medical University, Taichung Taiwan
| | - Yi-Ching Li
- Department of Pharmacology, School of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Pharmacy, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Chien-Ying Lee
- Department of Pharmacology, School of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Pharmacy, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Yu-Hsiang Kuan
- Department of Pharmacology, School of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Pharmacy, Chung Shan Medical University Hospital, Taichung, Taiwan
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Rong R, Li RR, Hou YB, Li J, Ding JX, Zhang CB, Yang Y. Mahuang-Xixin-Fuzi decoction reduces the infection of influenza A virus in Kidney-Yang deficiency syndrome mice. J Ethnopharmacol 2016; 192:217-224. [PMID: 27401293 DOI: 10.1016/j.jep.2016.07.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2016] [Revised: 06/19/2016] [Accepted: 07/07/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Mahuang-Xixin-Fuzi Decoction (MXF) as a famous formula for the treatment of colds, fever, nasal congestion and headache with elder people, has always been widely used in traditional Chinese medicine. The present study is aimed at investigating the treatment effect of MXF on Kidney-Yang deficiency syndrome in mice simultaneously infected with H1N1 virus. MATERIALS AND METHODS We employed the Kidney-Yang deficiency mouse model to investigate the effect of MXF against influenza A virus (A/FM/1/47, H1N1). Mice were infected with the virus after fifteen days Kidney-Yang deficiency syndrome was established (intraperitoneal injection of estradiol benzoate), while MXF was orally administrated with 1.2-4.7g/kg/d for 6 consecutive days after inoculation. Body weight, rectal temperature, morbidity, and mortality were recorded daily. Histopathologic changes, antioxidant activity of SOD and MDA were detected. Moreover, levels of inflammatory cytokines including IL-6, IL-10, MCP-1, TNF-α were measured in the sera of mice. RESULTS We found that the extract of MXF at dosages of 2.3-4.7g/kg could effectively diminish mortality rate, ameliorate lung edema and inflammation. Administration of MXF decoction significantly depressed the expression of IL-6, MCP-1 and TNF-α, and markedly increased expression of IL-10 in serum. Simultaneously, the extract was also found to reduce MDA and increase SOD in the lung tissue of mice. CONCLUSION These data support the notion that the extract of MXF could treat Kidney-Yang deficiency syndrome in mice simultaneously infected with influenza A virus by reducing inflammation and increasing antioxidant activities.
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Affiliation(s)
- Rong Rong
- Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Rong-Rong Li
- Shandong University of Traditional Chinese Medicine, Jinan 250355, China; Municipal Hospital of Yantai City Government, Yantai 264000, China
| | - Yan-Bao Hou
- Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Jing Li
- Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Jia-Xing Ding
- Shandong University of Traditional Chinese Medicine, Jinan 250355, China; Shandong Lvye Pharmaceutical Co., Ltd., Yantai 264003, China
| | - Cheng-Bo Zhang
- Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Yong Yang
- Shandong University of Traditional Chinese Medicine, Jinan 250355, China
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Zong Y, Zhang H. Amentoflavone prevents sepsis-associated acute lung injury through Nrf2-GCLc-mediated upregulation of glutathione. Acta Biochim Pol 2016; 64:93-98. [PMID: 27718499 DOI: 10.18388/abp.2016_1296] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 04/27/2016] [Accepted: 05/04/2016] [Indexed: 11/10/2022]
Abstract
Sepsis is a serious medical problem and is one of the main causes of high mortality in intensive care units. Fifty percent of patients with severe sepsis will develop acute lung injury (ALI). Amentoflavone (AMF) is a polyphenolic compound possessing potent anti-inflammatory activities. The study aimed to explore the protective effects of AMF against ALI in cecal ligation and puncture (CLP)-induced septic rats. The results showed that AMF administration protected against septic ALI, as reflected by marked amelioration of histological injury of lung tissues and decrease of pulmonary edema in CLP-treated rats. AMF ameliorated CLP-induced increase of systemic and lung TNFα and IL-1β and binding activity of p65 NF-κB, indicating the inhibition of inflammation. Moreover, AMF prevented CLP-induced oxidative stress, as evidenced by increase of oxygen consumption rate, decrease of TBARS content, increase of SOD activity and GSH level in lung tissue of CLP-treated rats. CLP resulted in significant decrease of mRNA expression of Nrf2 and GCLc, which was inhibited by AMF. AMF-induced protective effects on ALI, inflammation, and oxidative stress were inhibited by lentivirus shRNA-mediated silence of Nrf2 and buthionine sulphoximine (BSO), an inhibitor of GSH synthesis. AMF increased Nrf2-binding activity in GCLc promoters in lung tissue of CLP-treated rats. The results suggested that AMF protected against ALI in septic rats through upregulation of Nrf2-GCLc signaling, enhancement of GSH antioxidant defense, reduction of oxidative stress and final amelioration of inflammation and histological injury of lung. The data provide new therapeutic options for the treatment of sepsis-associated ALI.
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Affiliation(s)
- Yuan Zong
- Intensive Care Unit, Shaanxi Provincial People's Hospital, Xi'an 710068, Shaanxi Province, China
| | - Huali Zhang
- Intensive Care Unit, Shaanxi Provincial People's Hospital, Xi'an 710068, Shaanxi Province, China
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Petroni RC, Biselli PJC, de Lima TM, Theobaldo MC, Caldini ET, Pimentel RN, Barbeiro HV, Kubo SA, Velasco IT, Soriano FG. Hypertonic Saline (NaCl 7.5%) Reduces LPS-Induced Acute Lung Injury in Rats. Inflammation 2016; 38:2026-35. [PMID: 25962375 DOI: 10.1007/s10753-015-0183-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Acute respiratory distress syndrome (ARDS) is the most severe lung inflammatory manifestation and has no effective therapy nowadays. Sepsis is one of the main illnesses among ARDS causes. The use of fluid resuscitation is an important treatment for sepsis, but positive fluid balance may induce pulmonary injury. As an alternative, fluid resuscitation with hypertonic saline ((HS) NaCl 7.5%) has been described as a promising therapeutical agent in sepsis-induced ARDS by the diminished amount of fluid necessary. Thus, we evaluated the effect of hypertonic saline in the treatment of LPS-induced ARDS. We found that hypertonic saline (NaCl 7.5%) treatment in rat model of LPS-induced ARDS avoided pulmonary function worsening and inhibited type I collagen deposition. In addition, hypertonic saline prevented pulmonary injury by decreasing metalloproteinase 9 (MMP-9) activity in tissue. Focal adhesion kinase (FAK) activation was reduced in HS group as well as neutrophil infiltration, NOS2 expression and NO content. Our study shows that fluid resuscitation with hypertonic saline decreases the progression of LPS-induced ARDS due to inhibition of pulmonary remodeling that is observed when regular saline is used.
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Affiliation(s)
- Ricardo Costa Petroni
- Emergency Medicine Department, Medical School, University of São Paulo, São Paulo, Brazil.
- Faculdade de Medicina da USP, LIM-51, Av. Dr. Arnaldo, 455, 3 andar, sala 3189, Cerqueira César, 01246-903, São Paulo, SP, Brazil.
| | | | - Thais Martins de Lima
- Emergency Medicine Department, Medical School, University of São Paulo, São Paulo, Brazil
| | | | - Elia Tamaso Caldini
- Laboratory of Cell Biology, Department of Pathology, Medical School, University of Sao Paulo, São Paulo, Brazil
| | | | - Hermes Vieira Barbeiro
- Emergency Medicine Department, Medical School, University of São Paulo, São Paulo, Brazil
| | - Suely Ariga Kubo
- Emergency Medicine Department, Medical School, University of São Paulo, São Paulo, Brazil
| | - Irineu Tadeu Velasco
- Emergency Medicine Department, Medical School, University of São Paulo, São Paulo, Brazil
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Lan CC, Peng CK, Tang SE, Wu SY, Huang KL, Wu CP. Anti-Vascular Endothelial Growth Factor Antibody Suppresses ERK and NF-κB Activation in Ischemia-Reperfusion Lung Injury. PLoS One 2016; 11:e0159922. [PMID: 27513332 PMCID: PMC4981443 DOI: 10.1371/journal.pone.0159922] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Accepted: 02/10/2015] [Indexed: 01/11/2023] Open
Abstract
Ischemia-reperfusion (IR)-induced acute lung injury (ALI) is implicated in several clinical conditions like lung transplantation, acute pulmonary embolism after thrombolytic therapy, re-expansion of collapsed lung from pneumothorax or pleural effusion, cardiopulmonary bypass and etc. Because mortality remains high despite advanced medical care, prevention and treatment are important clinical issues for IR-induced ALI. Vascular endothelial growth factor (VEGF) has a controversial role in ALI. We therefore conducted this study to determine the effects of anti-VEGF antibody in IR-induced ALI. In the current study, the IR-induced ALI was conducted in a rat model of isolated-perfused lung in situ in the chest. The animals were divided into the control, control + preconditioning anti-VEGF antibody (bevacizumab, 5mg/kg), IR, IR + preconditioning anti-VEGF antibody (1mg/kg), IR+ preconditioning anti-VEGF antibody (5mg/kg) and IR+ post-IR anti-VEGF antibody (5mg/kg) group. There were eight adult male Sprague-Dawley rats in each group. The IR caused significant pulmonary micro-vascular hyper-permeability, pulmonary edema, neutrophilic infiltration in lung tissues, increased tumor necrosis factor-α, and total protein concentrations in bronchoalveolar lavage fluid. VEGF and extracellular signal-regulated kinase (ERK) were increased in IR-induced ALI. Administration of preconditioning anti-VEGF antibody significantly suppressed the VEGF and ERK expressions and attenuated the IR-induced lung injury. This study demonstrates the important role of VEGF in early IR-induced ALI. The beneficial effects of preconditioning anti-VEGF antibody in IR-induced ALI include the attenuation of lung injury, pro-inflammatory cytokines, and neutrophilic infiltration into the lung tissues.
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Affiliation(s)
- Chou-Chin Lan
- Division of Pulmonary Medicine, Buddhist Tzu Chi General Hospital, Buddhist Tzu Chi Medical Foundation, Taipei, Taiwan
- School of Medicine, Tzu-Chi University, Hualien, Taiwan
| | - Chung-Kan Peng
- Division of Pulmonary Medicine, Tri-Service General Hospital, Taipei, Taiwan
- Institute of Undersea and Hyperbaric Medicine, National Defense Medical Center, Taipei, Taiwan
| | - Shih-En Tang
- Division of Pulmonary Medicine, Tri-Service General Hospital, Taipei, Taiwan
- Institute of Undersea and Hyperbaric Medicine, National Defense Medical Center, Taipei, Taiwan
| | - Shu-Yu Wu
- Institute of Undersea and Hyperbaric Medicine, National Defense Medical Center, Taipei, Taiwan
| | - Kun-Lun Huang
- Division of Pulmonary Medicine, Tri-Service General Hospital, Taipei, Taiwan
- Institute of Undersea and Hyperbaric Medicine, National Defense Medical Center, Taipei, Taiwan
- * E-mail: (CPW); (KLH)
| | - Chin-Pyng Wu
- Department of Critical Care Medicine, Li-Shin Hospital, Tao-Yuan County, Taiwan
- * E-mail: (CPW); (KLH)
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Vermeijden WJ, de Vries H, Kieboom J, Waterbolk T. Leucocyte depletion in a drowning victim during rewarming with extracorporeal circulation may limit pulmonary oedema. Perfusion 2016; 21:305-8. [PMID: 17201086 DOI: 10.1177/0267659106074772] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Introduction: We report two drowning victims with hypothermic circulatory arrest who were resuscitated with the use of extracorporeal circulation (ECC). The first patient developed severe post–bypass pulmonary oedema and inspired us to use a leucocyte–depletion filter in the second patient to attenuate leucocyte–mediated pulmonary reperfusion injury. Methods: In the first patient, a standard extracorporeal circuit was used. In the second patient, systemic leucocyte depletion was applied using leucocyte–depletion filters (Pall RS 1, Pall, Portsmouth, UK), in the venous side of the extracorporeal circuit. Circulating leucocyte counts were measured and arterial blood gas analysis and chest X–rays were performed. Results: Both patients showed a decrease of the circulating leucocyte counts during rewarming and had nearly similar leucocyte counts on arrival at the intensive care unit (ICU). The first patient developed severe pulmonary oedema, with poor arterial blood gases, whereas the second patient, who had leucocyte–depletion by filtration, did not develop severe pulmonary oedema, and had good arterial blood gases. Conclusion: Profound leucocyte–depletion by means of filtration may have contributed to limit leucocyte–mediated pulmonary reperfusion injury.
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Affiliation(s)
- Wytze J Vermeijden
- Department of Anaesthesiology, University Medical Center Groningen, University of Groningen, The Netherlands.
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Abstract
Improvement in the ratio of PaO2 to the fraction of inspired oxygen and treatment of pulmonary infections in donors have been cited as important goals for improving lungs before implantation and restoring marginal lungs to the donor pool. Likewise, improving donor PaO2 is often critical for other organs during donor care. The common physiological mechanisms responsible for hypoxemia are ventilation/perfusion mismatching, abnormal oxygen diffusion, and hypoventilation. These mechanisms are discussed and treatment options are considered.
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Affiliation(s)
- David J Powner
- Vivian L. Smith Center for Neurologic Research, University of Texas Health Science Center at Houston, TX, USA
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Huang YC, Horng CT, Chen ST, Lee SS, Yang ML, Lee CY, Kuo WH, Yeh CH, Kuan YH. Rutin improves endotoxin-induced acute lung injury via inhibition of iNOS and VCAM-1 expression. Environ Toxicol 2016; 31:185-191. [PMID: 25080890 DOI: 10.1002/tox.22033] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 07/14/2014] [Accepted: 07/18/2014] [Indexed: 06/03/2023]
Abstract
Endotoxins exist anywhere including in water pools, dust, humidifier systems, and machining fluids. The major causal factor is endotoxins in many serious diseases, such as fever, sepsis, multi-organ failure, meningococcemia, and severe morbidities like neurologic disability, or hearing loss. Endotoxins are also called lipopolysaccharide (LPS) and are important pathogens of acute lung injury (ALI). Rutin has potential beneficial effects including anti-inflammation, antioxidation, anti-hyperlipidemia, and anti-platelet aggregation. Pre-treatment with rutin inhibited LPS-induced neutrophil infiltration in the lungs. LPS-induced expression of vascular cell adhesion molecule (VCAM)-1 and inducible nitric oxide synthase (iNOS) was suppressed by rutin, but there was no influence on expression of intercellular adhesion molecule-1 and cyclooxygenase-2. In addition, activation of the nuclear factor (NF)κB was reduced by rutin. Furthermore, we found that the inhibitory concentration of rutin on expression of VCAM-1 and iNOS was similar to NFκB activation. In conclusion, rutin is a potential protective agent for ALI via inhibition of neutrophil infiltration, expression of VCAM-1 and iNOS, and NFκB activation.
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Affiliation(s)
- Yi-Chun Huang
- School of Health, National Taichung University of Science and Technology, Taichung, Taiwan
| | - Chi-Ting Horng
- Medical Education Center, Kaohsiung Armed Forced General Hospital, Kaohsiung, Taiwan
- Department of Ophthalmology, Kaohsiung Armed Forced General Hospital, Kaohsiung, Taiwan
| | - Shyan-Tarng Chen
- School of Optometry, Chung Shan Medical University, Taichung, Taiwan
| | - Shiuan-Shinn Lee
- School of Public Health, Chung Shan Medical University, Taichung, Taiwan
| | - Ming-Ling Yang
- Department of Anatomy, School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Chien-Ying Lee
- Department of Pharmacology, School of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Pharmacy, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Wu-Hsien Kuo
- Department of Medicine, Kaohsiung Armed Forced General Hospital,Taiwan, Kaohsiung, Taiwan
- Department of Medicine, Tri-Service General Hospital, Taipei, Taiwan
| | - Chung-Hsin Yeh
- Department of Neurology, Show Chwan Memorial Hospital, Changhua, Taiwan
- Department of Nursing, College of Medicine & Nursing, Hung Kuang University, Taichung, Taiwan
| | - Yu-Hsiang Kuan
- Department of Pharmacology, School of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Pharmacy, Chung Shan Medical University Hospital, Taichung, Taiwan
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White CI, Jansen MA, McGregor K, Mylonas KJ, Richardson RV, Thomson A, Moran CM, Seckl JR, Walker BR, Chapman KE, Gray GA. Cardiomyocyte and Vascular Smooth Muscle-Independent 11β-Hydroxysteroid Dehydrogenase 1 Amplifies Infarct Expansion, Hypertrophy, and the Development of Heart Failure After Myocardial Infarction in Male Mice. Endocrinology 2016; 157:346-57. [PMID: 26465199 PMCID: PMC4701896 DOI: 10.1210/en.2015-1630] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Global deficiency of 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1), an enzyme that regenerates glucocorticoids within cells, promotes angiogenesis, and reduces acute infarct expansion after myocardial infarction (MI), suggesting that 11β-HSD1 activity has an adverse influence on wound healing in the heart after MI. The present study investigated whether 11β-HSD1 deficiency could prevent the development of heart failure after MI and examined whether 11β-HSD1 deficiency in cardiomyocytes and vascular smooth muscle cells confers this protection. Male mice with global deficiency in 11β-HSD1, or with Hsd11b1 disruption in cardiac and vascular smooth muscle (via SM22α-Cre recombinase), underwent coronary artery ligation for induction of MI. Acute injury was equivalent in all groups. However, by 8 weeks after induction of MI, relative to C57Bl/6 wild type, globally 11β-HSD1-deficient mice had reduced infarct size (34.7 ± 2.1% left ventricle [LV] vs 44.0 ± 3.3% LV, P = .02), improved function (ejection fraction, 33.5 ± 2.5% vs 24.7 ± 2.5%, P = .03) and reduced ventricular dilation (LV end-diastolic volume, 0.17 ± 0.01 vs 0.21 ± 0.01 mL, P = .01). This was accompanied by a reduction in hypertrophy, pulmonary edema, and in the expression of genes encoding atrial natriuretic peptide and β-myosin heavy chain. None of these outcomes, nor promotion of periinfarct angiogenesis during infarct repair, were recapitulated when 11β-HSD1 deficiency was restricted to cardiac and vascular smooth muscle. 11β-HSD1 expressed in cells other than cardiomyocytes or vascular smooth muscle limits angiogenesis and promotes infarct expansion with adverse ventricular remodeling after MI. Early pharmacological inhibition of 11β-HSD1 may offer a new therapeutic approach to prevent heart failure associated with ischemic heart disease.
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MESH Headings
- 11-beta-Hydroxysteroid Dehydrogenase Type 1/deficiency
- 11-beta-Hydroxysteroid Dehydrogenase Type 1/genetics
- 11-beta-Hydroxysteroid Dehydrogenase Type 1/metabolism
- Animals
- Cardiomegaly/etiology
- Cardiomegaly/prevention & control
- Coronary Circulation
- Crosses, Genetic
- Gene Expression Regulation
- Heart Failure/etiology
- Heart Failure/prevention & control
- Heart Ventricles/metabolism
- Heart Ventricles/pathology
- Heart Ventricles/physiopathology
- Male
- Mice, Inbred C57BL
- Mice, Knockout
- Mice, Transgenic
- Muscle, Smooth, Vascular/enzymology
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Myocardial Infarction/metabolism
- Myocardial Infarction/pathology
- Myocardial Infarction/physiopathology
- Myocytes, Cardiac/enzymology
- Myocytes, Cardiac/metabolism
- Myocytes, Cardiac/pathology
- Neovascularization, Physiologic
- Organ Size
- Pulmonary Edema/etiology
- Pulmonary Edema/prevention & control
- Stroke Volume
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Affiliation(s)
- Christopher I White
- British Heart Foundation/University Centre for Cardiovascular Science (C.I.W., M.A.J., K.M., K.J.M., R.V.R., C.M.M., J.R.S., B.R.W., K.E.C., G.A.G.), Queens Medical Research Institute, and Edinburgh Preclinical Imaging (M.A.J., A.T., C.M.M.), College of Medicine and Veterinary Medicine, The University of Edinburgh, Edinburgh EH16 4TJ, Scotland, United Kingdom
| | - Maurits A Jansen
- British Heart Foundation/University Centre for Cardiovascular Science (C.I.W., M.A.J., K.M., K.J.M., R.V.R., C.M.M., J.R.S., B.R.W., K.E.C., G.A.G.), Queens Medical Research Institute, and Edinburgh Preclinical Imaging (M.A.J., A.T., C.M.M.), College of Medicine and Veterinary Medicine, The University of Edinburgh, Edinburgh EH16 4TJ, Scotland, United Kingdom
| | - Kieran McGregor
- British Heart Foundation/University Centre for Cardiovascular Science (C.I.W., M.A.J., K.M., K.J.M., R.V.R., C.M.M., J.R.S., B.R.W., K.E.C., G.A.G.), Queens Medical Research Institute, and Edinburgh Preclinical Imaging (M.A.J., A.T., C.M.M.), College of Medicine and Veterinary Medicine, The University of Edinburgh, Edinburgh EH16 4TJ, Scotland, United Kingdom
| | - Katie J Mylonas
- British Heart Foundation/University Centre for Cardiovascular Science (C.I.W., M.A.J., K.M., K.J.M., R.V.R., C.M.M., J.R.S., B.R.W., K.E.C., G.A.G.), Queens Medical Research Institute, and Edinburgh Preclinical Imaging (M.A.J., A.T., C.M.M.), College of Medicine and Veterinary Medicine, The University of Edinburgh, Edinburgh EH16 4TJ, Scotland, United Kingdom
| | - Rachel V Richardson
- British Heart Foundation/University Centre for Cardiovascular Science (C.I.W., M.A.J., K.M., K.J.M., R.V.R., C.M.M., J.R.S., B.R.W., K.E.C., G.A.G.), Queens Medical Research Institute, and Edinburgh Preclinical Imaging (M.A.J., A.T., C.M.M.), College of Medicine and Veterinary Medicine, The University of Edinburgh, Edinburgh EH16 4TJ, Scotland, United Kingdom
| | - Adrian Thomson
- British Heart Foundation/University Centre for Cardiovascular Science (C.I.W., M.A.J., K.M., K.J.M., R.V.R., C.M.M., J.R.S., B.R.W., K.E.C., G.A.G.), Queens Medical Research Institute, and Edinburgh Preclinical Imaging (M.A.J., A.T., C.M.M.), College of Medicine and Veterinary Medicine, The University of Edinburgh, Edinburgh EH16 4TJ, Scotland, United Kingdom
| | - Carmel M Moran
- British Heart Foundation/University Centre for Cardiovascular Science (C.I.W., M.A.J., K.M., K.J.M., R.V.R., C.M.M., J.R.S., B.R.W., K.E.C., G.A.G.), Queens Medical Research Institute, and Edinburgh Preclinical Imaging (M.A.J., A.T., C.M.M.), College of Medicine and Veterinary Medicine, The University of Edinburgh, Edinburgh EH16 4TJ, Scotland, United Kingdom
| | - Jonathan R Seckl
- British Heart Foundation/University Centre for Cardiovascular Science (C.I.W., M.A.J., K.M., K.J.M., R.V.R., C.M.M., J.R.S., B.R.W., K.E.C., G.A.G.), Queens Medical Research Institute, and Edinburgh Preclinical Imaging (M.A.J., A.T., C.M.M.), College of Medicine and Veterinary Medicine, The University of Edinburgh, Edinburgh EH16 4TJ, Scotland, United Kingdom
| | - Brian R Walker
- British Heart Foundation/University Centre for Cardiovascular Science (C.I.W., M.A.J., K.M., K.J.M., R.V.R., C.M.M., J.R.S., B.R.W., K.E.C., G.A.G.), Queens Medical Research Institute, and Edinburgh Preclinical Imaging (M.A.J., A.T., C.M.M.), College of Medicine and Veterinary Medicine, The University of Edinburgh, Edinburgh EH16 4TJ, Scotland, United Kingdom
| | - Karen E Chapman
- British Heart Foundation/University Centre for Cardiovascular Science (C.I.W., M.A.J., K.M., K.J.M., R.V.R., C.M.M., J.R.S., B.R.W., K.E.C., G.A.G.), Queens Medical Research Institute, and Edinburgh Preclinical Imaging (M.A.J., A.T., C.M.M.), College of Medicine and Veterinary Medicine, The University of Edinburgh, Edinburgh EH16 4TJ, Scotland, United Kingdom
| | - Gillian A Gray
- British Heart Foundation/University Centre for Cardiovascular Science (C.I.W., M.A.J., K.M., K.J.M., R.V.R., C.M.M., J.R.S., B.R.W., K.E.C., G.A.G.), Queens Medical Research Institute, and Edinburgh Preclinical Imaging (M.A.J., A.T., C.M.M.), College of Medicine and Veterinary Medicine, The University of Edinburgh, Edinburgh EH16 4TJ, Scotland, United Kingdom
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Deng W, Deng Y, Deng J, Wang DX, Zhang T. Losartan attenuated lipopolysaccharide-induced lung injury by suppression of lectin-like oxidized low-density lipoprotein receptor-1. Int J Clin Exp Pathol 2015; 8:15670-15676. [PMID: 26884836 PMCID: PMC4730049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Accepted: 10/21/2015] [Indexed: 06/05/2023]
Abstract
INTRODUCTION Recent study has shown that renin-angiotensin system plays an important role in the development of acute lung injury (ALI) with high level of angiotensin II (AngII) generated form AngI catalyzed by angiotensin-converting enzyme. AngII plays a major effect mainly through AT1 receptor. Therefore, we speculate inhibition of AT1 receptor may possibly attenuate the lung injury. Losartan, an antagonist of AT1 receptor for angiotensin II, attenuated lung injury by alleviation of the inflammation response in ALI, but the mechanism of losartan in ALI still remains unclear. METHODS Thirty male Sprague-Dawley rats were randomly divided into Control group, ALI group (LPS), and Losartan group (LPS + Losartan). Bronchoalveolar lavage fluid (BALF) and lung tissue were obtained for analysis. The expressions of lectin-like oxidized low-density lipoprotein receptor-1 (LOX-1), intercellular adhesion molecule-1 (ICAM-1) and caspase-3 were detected by reverse transcriptase polymerase chain reaction (RT-PCR) and western blotting. RESULTS In ALI group, TNF-α and protein level in BALF, MPO activity in lung tissue, pulmonary edema and lung injury were significantly increased. Losartan significantly reduced LPS-induced increase in TNF-α and protein level in BALF, MPO activity, pulmonary edema and lung injury in LPS-induced lung injury. The mRNA and protein expression levels of LOX-1 were significantly decreased with the administration of losartan in LPS-induced lung injury. Also, losartan blocked the protein levels of caspase-3 and ICAM-1 mediated by LOX-1 in LPS-induced lung injury. CONCLUSIONS Losartan attenuated lung injury by alleviation of the inflammation and cell apoptosis by inhibition of LOX-1 in LPS-induced lung injury.
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Affiliation(s)
- Wang Deng
- Department of Respiratory Medicine, The Second Affiliated Hospital of Chongqing Medical University Chongqing 40010, China
| | - Yue Deng
- Department of Respiratory Medicine, The Second Affiliated Hospital of Chongqing Medical University Chongqing 40010, China
| | - Jia Deng
- Department of Respiratory Medicine, The Second Affiliated Hospital of Chongqing Medical University Chongqing 40010, China
| | - Dao-Xin Wang
- Department of Respiratory Medicine, The Second Affiliated Hospital of Chongqing Medical University Chongqing 40010, China
| | - Ting Zhang
- Department of Respiratory Medicine, The Second Affiliated Hospital of Chongqing Medical University Chongqing 40010, China
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Wang YY, Qiu XG, Ren HL. Inhibition of acute lung injury by rubriflordilactone in LPS-induced rat model through suppression of inflammatory factor expression. Int J Clin Exp Pathol 2015; 8:15954-15959. [PMID: 26884869 PMCID: PMC4730082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Accepted: 10/23/2015] [Indexed: 06/05/2023]
Abstract
The present study demonstrates the effect of rubriflordilactone on lipopolysaccharide (LPS)-induced acute kidney injury in rats and MLE-15 cells. LPS administration in rats resulted in formation of edema which was inhibited by pretreatment with rubriflordilactone. The pulmonary tissues of LPS administered rats and MLE-15 cells showed a significant increase in the expression of matrix metalloproteinase-9, interleukin-6 and inducible nitric oxide synthase. However, rubriflordilactone treatment prior to LPS administration caused a significant reduction in the expression of these factors at a concentration of 10 nm/kg. Analysis of the Sirtuin 1 (Sirt1) expression revealed significant (P=0.002) reduction on exposure to LPS in MLE-15 cells. However, rubriflordilactone treatment at 10 nm/ml concentration before LPS exposure caused inhibition of LPS induced reduction in Sirt1 expression. Silencing of Sirt1 by siRNA in MLE-15 cells led to inhibition of increased Sirt1 expression by rubriflordilactone in LPS administered rats. These findings suggest that rubriflordilactone inhibits LPS induced acute lung injury in rats and MLE-15 cells through promotion of Sirt1 expression.
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Affiliation(s)
- Yan-Ying Wang
- Department of Surgical, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450000, P.R. China
- Zhumadian City Central HospitalZhumadian 463000, P.R. China
| | - Xin-Guang Qiu
- Department of Surgical, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450000, P.R. China
| | - Hong-Liang Ren
- Department of Surgical, Zhumadian City Central HospitalZhumadian 463000, P.R. China
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42
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Schossleitner K, Habertheuer A, Finsterwalder R, Friedl HP, Rauscher S, Gröger M, Kocher A, Wagner C, Wagner SN, Fischer G, Schultz MJ, Wiedemann D, Petzelbauer P. A Peptide to Reduce Pulmonary Edema in a Rat Model of Lung Transplantation. PLoS One 2015; 10:e0142115. [PMID: 26536466 PMCID: PMC4633234 DOI: 10.1371/journal.pone.0142115] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 10/16/2015] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Despite significant advances in organ preservation, surgical techniques and perioperative care, primary graft dysfunction is a serious medical problem in transplantation medicine in general and a specific problem in patients undergoing lung transplantation. As a result, patients develop lung edema, causing reduced tissue oxygenation capacity, reduced lung compliance and increased requirements for mechanical ventilatory support. Yet, there is no effective strategy available to protect the grafted organ from stress reactions induced by ischemia/reperfusion and by the surgical procedure itself. METHODS We assessed the effect of a cingulin-derived peptide, XIB13 or a random peptide in an established rat model of allogeneic lung transplantation. Donor lungs and recipients received therapeutic peptide at the time of transplantation and outcome was analyzed 100min and 28 days post grafting. RESULTS XIB13 improved blood oxygenation and reduced vascular leak 100min post grafting. Even after 28 days, lung edema was significantly reduced by XIB13 and lungs had reduced fibrotic or necrotic zones. Moreover, the induction of an allogeneic T cell response was delayed indicating a reduced antigen exchange between the donor and the host. CONCLUSIONS In summary, we provide a new tool to strengthen endothelial barrier function thereby improving outcomes in lung transplantation.
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Affiliation(s)
- Klaudia Schossleitner
- Department of Dermatology, Skin and Endothelium Research Division (SERD) Medical University of Vienna, Vienna, Austria
| | | | - Richard Finsterwalder
- Department of Dermatology, Skin and Endothelium Research Division (SERD) Medical University of Vienna, Vienna, Austria
| | - Heinz P. Friedl
- Department of Dermatology, Skin and Endothelium Research Division (SERD) Medical University of Vienna, Vienna, Austria
| | - Sabine Rauscher
- Core Facility Imaging Medical University of Vienna, Vienna, Austria
| | - Marion Gröger
- Core Facility Imaging Medical University of Vienna, Vienna, Austria
| | - Alfred Kocher
- Department of Cardiac Surgery Medical University of Vienna, Vienna, Austria
| | - Christine Wagner
- Department of Dermatology, Division of Immunology, Allergy and Infectious Diseases Medical University of Vienna, Vienna, Austria
| | - Stephan N. Wagner
- Department of Dermatology, Division of Immunology, Allergy and Infectious Diseases Medical University of Vienna, Vienna, Austria
| | - Gottfried Fischer
- Department of Blood Group Serology and Transfusion Medicine, Medical University of Vienna, Vienna, Austria
| | - Marcus J. Schultz
- Department of Intensive Care & Laboratory of Experimental Intensive Care and Anesthesiology (L.E.I.C.A), Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Dominik Wiedemann
- Department of Cardiac Surgery Medical University of Vienna, Vienna, Austria
| | - Peter Petzelbauer
- Department of Dermatology, Skin and Endothelium Research Division (SERD) Medical University of Vienna, Vienna, Austria
- * E-mail:
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Akella A, Deshpande SB. Vagal efferent stimulation protects against Mesobuthus tamulus venom-induced acute respiratory distress syndrome in rats. Toxicon 2015; 108:189-201. [PMID: 26525658 DOI: 10.1016/j.toxicon.2015.10.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2015] [Revised: 10/18/2015] [Accepted: 10/20/2015] [Indexed: 11/19/2022]
Abstract
Mesobuthus tamulus (MBT) venom and oleic acid (OA) have been shown to produce acute respiratory distress syndrome (ARDS) involving different mechanisms. The role of vagally mediated anti-inflammatory pathway in ARDS is poorly understood. Therefore, the effects of vagal efferent stimulation on these two models of ARDS were examined. Experiments were performed on anesthetized adult rats. Parameters like ventilatory changes (respiratory frequency and minute ventilation), hypoxemic status (PaO2/FiO2 ratio; P/F ratio), survival time, pulmonary water content and histopathological evidences of lung injury were determined to assess the severity of ARDS. In addition, heart rate (HR) and mean arterial pressure (MAP) were monitored. Injection of OA/MBT venom produced respiratory alterations, hypoxemia, pulmonary edema and histopathological changes demonstrating the development of ARDS. In both the groups, animals died around 60 min. Tachypnea and hyperventilation were seen after OA while bradypnea and hypoventilation were seen after MBT venom. Pulmonary edema was absent in vagotomised animals in MBT venom group but not in OA group. Further, electrical stimulation of the cut peripheral ends of vagii prolonged the survival time and attenuated all the parameters of MBT venom-induced ARDS significantly. In case of OA, there was improvement in histopathological changes but the survival time of animals was not prolonged. Stimulation of α7-nicotinic receptors (by pretreatment with GTS-21) exacerbated OA as well as MBT venom-induced ARDS. The present results indicate that vagal efferent stimulation protects against MBT venom-induced ARDS.
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Affiliation(s)
- Aparna Akella
- Department of Physiology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, India
| | - Shripad B Deshpande
- Department of Physiology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, India.
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Zhang Q, Wu D, Yang Y, Liu T, Liu H. Effects of dexmedetomidine on the protection of hyperoxia-induced lung injury in newborn rats. Int J Clin Exp Pathol 2015; 8:6466-6473. [PMID: 26261523 PMCID: PMC4525857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 05/21/2015] [Indexed: 06/04/2023]
Abstract
Dexmedetomidine (Dex) is a specific agonist of α2-adrenoceptor and was reported to have protective effect on a variety of organs, however the effect of Dex on hyperoxia-induced lung injury remains unknown. In the present study, Dex was administrated to newborn rats and its effect against hyperoxia-induced lung injury was examined. The results showed that, Dex significantly attenuated the aberration, macrophage infiltration, inflammatory responses and pulmonary edema induced by hyperoxia. In addition, the down-regulation of AQP1 was also reversed by Dex. These data indicate that Dex may be a potential therapy in the prevention of hyperoxia-induced lung injury in infants.
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Affiliation(s)
- Qiuyue Zhang
- Department of Paediatrics, The First Affiliated Hospital of Harbin Medical UniversityHarbin 150001, People’s Republic of China
| | - Di Wu
- Department of Paediatrics, The First Affiliated Hospital of Harbin Medical UniversityHarbin 150001, People’s Republic of China
| | - Yang Yang
- Department of Paediatrics, The First Affiliated Hospital of Harbin Medical UniversityHarbin 150001, People’s Republic of China
| | - Tingting Liu
- Department of Paediatrics, The First Affiliated Hospital of Harbin Medical UniversityHarbin 150001, People’s Republic of China
| | - Hongyu Liu
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Harbin Medical UniversityHarbin 150001, People’s Republic of China
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Takeda K, Kumamoto T, Nojiri K, Mori R, Taniguchi K, Matsuyama R, Tanaka K, Endo I. Stroke Volume Variation for the Evaluation of Circulating Blood Volume after Living Donor Liver Transplantation. Hepatogastroenterology 2015; 62:693-697. [PMID: 26897956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
BACKGROUND/AIMS Stroke volume variation (SVV) is a sensitive, functional preload index for evaluating responsiveness to volume loading in patients during liver transplantation (LT). However, there have been few reports concerning the experience of using SVV after LT. METHODOLOGY Of 61 patients who underwent living donor LT (LDLT) at our institute, we used only central venous pressure (CVP) to guide fluid management in the first 52 patients (conventional group) and used both SVV and CVP in the next 9 patients (SVV group). The boundary values used for fluid management were 10mmHg for CVP and 10% for SVV. Changes in SVV and CVP were compared. RESULTS In the SVV group, SVV was less than 10% in all patients when the diuretic phase appeared. However, CVP was more than 10mmHg in only 4 cases (44.4%). Between surgery and the removal of endotracheal tubes, the lowest the ratio between arterial oxygen tension and fractional inspired oxygen (PaO2/FiO2 ratio) in the SVV group (290.7 ± 100.5) was significantly higher than that in the conventional group (205.6 ± 98.9, P = 0.017). CONCLUSION Postoperative fluid management using SVV may be especially useful after LDLT. Monitoring the circulating blood volume using a 10% SVV index is useful for avoiding lung edema after LT.
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Karimfar MH, Rostami S, Haghani K, Bakhtiyari S, Noori-Zadeh A. MELATONIN ALLEVIATES BLEOMYCIN-INDUCED PULMONARY FIBROSIS IN MICE. J BIOL REG HOMEOS AG 2015; 29:327-334. [PMID: 26122220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Pulmonary fibrosis occurs as a common end-stage sequela of a number of acute and chronic lung diseases. Eicosanoids exert crucial roles in inflammatory processes pertinent to fibrogenesis induction, however, the role of cyclooxygenase 2 (COX-2) is not fully elucidated in most pulmonary fibrosis related-disorders. Recently, melatonin (MLN) has been introduced as an effective immuno-modulator and anti-oxidant agent. The present study aimed to investigate the effect of MLN on COX-2 expression in idiopathic pulmonary fibrosis (IPF). Animals were divided into five groups, including: 1) saline control, 2) 1% ethanol control, 3) MLN control, 4) bleomycin (BLM), in which mice were injected with BLM (15 mg/kg, i.p.) two times per week for four weeks, and 5) BLM+MLN, in which MLN was given to mice (10 mg/kg, i.p.) 30 minutes prior to BLM injections for four weeks. MLN administration significantly reduced body weight loss (P<0.05), the rate of mortality, edema formation, lung injury, COX-2 expression (P>0.05), interstitial tissue percentage volume (P<0.05), and also increased the alveolar space percentage volume. MLN attenuated the BLM-induced lung injury responses such as collagen accumulation and airway dysfunction in mice. Finally, histological evidence supported the ability of MLN to inhibit COX-2 expression. Thus, it may serve as a novel potential therapeutic agent for IPF.
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Affiliation(s)
- M H Karimfar
- Department of Anatomical Sciences, School of Medicine, Ilam University of Medical Sciences, Ilam, Iran
| | - S Rostami
- Student Research Committee, Ilam University of Medical Sciences, Ilam, Iran
| | - K Haghani
- Department of Clinical Biochemistry, School of Medicine, Ilam University of Medical Sciences, Ilam, Iran
| | - S Bakhtiyari
- Student Research Committee, Ilam University of Medical Sciences, Ilam, Iran
| | - A Noori-Zadeh
- Student Research Committee, Ilam University of Medical Sciences, Ilam, Iran
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Caglayan K, Güngör B, Cinar H, Avci B, Gur S, Arslan N. Effects of oleuropein on serum inflammatory cytokines and histopathological changes in rats with pancreatitis. ADV CLIN EXP MED 2015; 24:213-8. [PMID: 25931351 DOI: 10.17219/acem/40453] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVES Acute pancreatitis is a severe debilitating disease with high morbidity and mortality. The severity of the disease is largely due to the actions of various inflammatory mediators. No specific therapy is indicated for AP and its treatment remains largely supportive. This study investigated the effect of oleuropein on serum inflammatory cytokines and distant organ injury in rats with acute pancreatitis induced by bile-pancreatic duct obstruction. MATERIAL AND METHODS Thirty adult male Wistar rats were randomly assigned to 3 groups of 10 rats each: group I: sham, group II: pancreatitis and group III: pancreatitis+oleuropein. Rats in Group III received oleuropein 20 mg/kg intragastrically during 10 days before surgery. The rats were sacrificed at 24 h after surgery and venous blood, pancreatic and lung tissue samples were obtained for analysis. RESULTS A statistically significant difference was found between groups regarding serum amylase, LDH, lipase, pancreatic amylase, IL-6, IL-10 and TNF-α values with a Kruskal-Wallis test (p<0.05). No statistically significant difference was found between Group II and III regarding pairwise comparison of amylase, LDH, lipase, pancreatic amylase, IL-6, IL-10 and TNF-α value by using pairwise comparisons with a Mann-Whitney U test (p>0.01). A statistically significant difference between groups was found regarding edema, inflammation, hemorrhage and acinar cell necrosis in histopathological examination of the pancreas (p<0.05). No difference was found between group II and III (p>0.01). A difference was found between the groups in terms of lung tissue edema (p<0.05) but no difference was found regarding hemorrhage and inflammation (p>0.05). No statistically significant difference was found between group II and III with pairwise comparison (p>0.01). CONCLUSIONS The experimental model used in this study showed to be appropriate for creation of acute pancreatitis. It was concluded that oleuropein as a prophylactic treatment has no protective effect on serum proinflammatory and anti-inflammatory cytokines as well as pancreatic tissue.
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Affiliation(s)
- Kasim Caglayan
- Department of General Surgery, Bozok University Faculty of Medicine, Yozgat, Turkey
| | - Bülent Güngör
- Department of General Surgery, Ondokuz Mayis University Faculty of Medicine, Samsun, Turkey
| | - Hamza Cinar
- Department of General Surgery, Ondokuz Mayis University Faculty of Medicine, Samsun, Turkey
| | - Bahattin Avci
- Department of Biochemistry, Ondokuz Mayis University Faculty of Medicine, Samsun, Turkey
| | - Sebnem Gur
- Department of Pathology, Ondokuz Mayis University Faculty of Medicine, Samsun, Turkey
| | - Nilden Arslan
- Department of Public Health, Ondokuz Mayis University Faculty of Medicine, Samsun, Turkey
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Abstract
BACKGROUND Blood transfusions are associated with significant morbidity and mortality. Prophylactic administration of loop diuretics (furosemide, bumetanide, ethacrynic acid, or torsemide) is common practice, especially among people who are at risk for circulatory overload, pulmonary oedema or both. OBJECTIVES This review aimed to determine if the prophylactic administration of loop diuretics (furosemide, bumetanide, ethacrynic acid, or torsemide) provides a therapeutic advantage (that is, a favourable risk benefit ratio) in adults and children who are recipients of any blood product transfusion versus placebo, no treatment, or general fluid restriction measures. SEARCH METHODS We searched the Cochrane Renal Group's Specialised Register to 13 January 2015 through contact with the Trials' Search Co-ordinator using search terms relevant to this review. SELECTION CRITERIA All randomised controlled trials (RCTs) and quasi-RCTs assessing a loop diuretic in patients receiving any blood transfusion were considered for inclusion. DATA COLLECTION AND ANALYSIS Two authors independently assessed study quality and extracted data. Study authors were contacted for additional information. Results were to be expressed as risk ratios (RR) and their 95% confidence intervals (CI) for dichotomous outcomes, and mean difference (MD) and 95% CI for continuous outcomes. Mean effect sizes were to be calculated using the random-effects models. MAIN RESULTS We included four studies that involved 100 participants. Furosemide was the only diuretic investigated in all four studies.None of the included studies assessed the clinically important outcomes noted in our protocol. The studies focused on various markers of respiratory function. An improvement in fraction of inspired oxygen (in favour of furosemide) was noted in one study. An improvement in pulmonary capillary wedge pressure (in favour of furosemide) was noted in two studies. AUTHORS' CONCLUSIONS There was insufficient evidence to determine whether premedicating people undergoing blood transfusion with loop diuretics prevents clinically important transfusion-related morbidity. Due to the continued use of prophylactic loop diuretics during transfusions, and because this review highlights the absence of evidence to justify this practice, well-conducted RCTs are needed. Given the high mortality, severe morbidity and increasing incidence of transfusion-associated circulatory overload, determining the therapeutic utility of pre-transfusion loop diuresis is an urgent need.
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Affiliation(s)
- Michael Sarai
- Kansas City University of Medicine & BiosciencesCollege of Medicine1750 E Independence AveKansas CityUSA
| | - Aaron M Tejani
- University of British ColumbiaTherapeutics Initiative2176 Health Sciences MallVancouverCanadaV6T 1Z3
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Klompas M, Anderson D, Trick W, Babcock H, Kerlin MP, Li L, Sinkowitz-Cochran R, Ely EW, Jernigan J, Magill S, Lyles R, O'Neil C, Kitch BT, Arrington E, Balas MC, Kleinman K, Bruce C, Lankiewicz J, Murphy MV, E Cox C, Lautenbach E, Sexton D, Fraser V, Weinstein RA, Platt R. The preventability of ventilator-associated events. The CDC Prevention Epicenters Wake Up and Breathe Collaborative. Am J Respir Crit Care Med 2015; 191:292-301. [PMID: 25369558 PMCID: PMC5447286 DOI: 10.1164/rccm.201407-1394oc] [Citation(s) in RCA: 115] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Accepted: 11/03/2014] [Indexed: 01/08/2023] Open
Abstract
RATIONALE The CDC introduced ventilator-associated event (VAE) definitions in January 2013. Little is known about VAE prevention. We hypothesized that daily, coordinated spontaneous awakening trials (SATs) and spontaneous breathing trials (SBTs) might prevent VAEs. OBJECTIVES To assess the preventability of VAEs. METHODS We nested a multicenter quality improvement collaborative within a prospective study of VAE surveillance among 20 intensive care units between November 2011 and May 2013. Twelve units joined the collaborative and implemented an opt-out protocol for nurses and respiratory therapists to perform paired daily SATs and SBTs. The remaining eight units conducted surveillance alone. We measured temporal trends in VAEs using generalized mixed effects regression models adjusted for patient-level unit, age, sex, reason for intubation, Sequential Organ Failure Assessment score, and comorbidity index. MEASUREMENTS AND MAIN RESULTS We tracked 5,164 consecutive episodes of mechanical ventilation: 3,425 in collaborative units and 1,739 in surveillance-only units. Within collaborative units, significant increases in SATs, SBTs, and percentage of SBTs performed without sedation were mirrored by significant decreases in duration of mechanical ventilation and hospital length-of-stay. There was no change in VAE risk per ventilator day but significant decreases in VAE risk per episode of mechanical ventilation (odds ratio [OR], 0.63; 95% confidence interval [CI], 0.42-0.97) and infection-related ventilator-associated complications (OR, 0.35; 95% CI, 0.17-0.71) but not pneumonias (OR, 0.51; 95% CI, 0.19-1.3). Within surveillance-only units, there were no significant changes in SAT, SBT, or VAE rates. CONCLUSIONS Enhanced performance of paired, daily SATs and SBTs is associated with lower VAE rates. Clinical trial registered with www.clinicaltrials.gov (NCT 01583413).
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Affiliation(s)
- Michael Klompas
- 1 Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Healthcare Institute, Boston, Massachusetts
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Mokra D, Drgova A, Mokry J, Antosova M, Durdik P, Calkovska A. N-acetylcysteine effectively diminished meconium-induced oxidative stress in adult rabbits. J Physiol Pharmacol 2015; 66:101-110. [PMID: 25716970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 06/29/2014] [Accepted: 01/23/2015] [Indexed: 06/04/2023]
Abstract
Since inflammation and oxidative stress are fundamental in the pathophysiology of neonatal meconium aspiration syndrome (MAS), various anti-inflammatory drugs have been used in experimental and clinical studies on MAS. This pilot study evaluated therapeutic potential of N-acetylcysteine in modulation of meconium-induced inflammation and oxidative lung injury. Oxygen-ventilated adult rabbits were intratracheally given 4 ml/kg of meconium (25 mg/ml) or saline (Sal, n = 6). Thirty minutes later, meconium-instilled animals were treated with intravenous N-acetylcysteine (10 mg/kg, Mec + NAC, n=6) or were non-treated (Mec, n = 6). All animals were oxygen-ventilated for additional 5 hours. Total and differential blood leukocyte counts were determined at baseline, and at 1, 3 and 5 h of the treatment. After sacrificing animals, left lung was saline-lavaged and total and differential cell counts in the bronchoalveolar lavage fluid were determined. Right lung was used for biochemical analyses and for estimation of wet-dry weight ratio. In lung tissue homogenate, thiobarbituric acid-reactive substances (TBARS), dityrosine, lysine-lipid peroxidation (LPO) products, and total antioxidant status (TAS) were detected. In isolated lung mitochondria, TBARS, dityrosine, lysine-LPO products, thiol group content, conjugated dienes, and activity of cytochrome c oxidase were estimated. To evaluate systemic effects of meconium instillation and NAC treatment, TBARS and TAS were determined also in plasma. To evaluate participation of eosinophils in the meconium-induced inflammation, eosinophil cationic protein (ECP) was detected in plasma and lung homogenate. Meconium instillation increased oxidation markers and ECP in the lung and decreased TAS (all P<0.05). NAC treatment reduced ECP and oxidation markers (all P<0.05, except of dityrosine in homogenate and conjugated dienes in mitochondria) and prevented a decrease in TAS (P<0.01) in lung homogenate compared to Mec group. In plasma, NAC decreased TBARS (P<0.001) and ECP, and increased TAS (both P<0.05) compared to Mec group. Concluding, N-acetylcysteine diminished meconium-induced inflammation and oxidative lung injury.
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Affiliation(s)
- D Mokra
- Department of Physiology, Comenius University in Bratislava, Jessenius School of Medicine in Martin, Martin, Slovakia.
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