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Godbe KN, Sinik LM, Lemons DV, Sokol JA. Nose-Ocomial Pulmonary Edema: A Rare Complication of Oxymetazoline. Ophthalmic Plast Reconstr Surg 2024; 40:e35-e36. [PMID: 37721321 DOI: 10.1097/iop.0000000000002529] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/19/2023]
Abstract
A 72-year-old female with epiphora presented for outpatient punctoplasty with probing and lacrimal stent placement. Oxymetazoline was administered intranasally and the case was completed in standard fashion. Postoperatively, the patient desaturated with a workup revealing elevated cardiac enzymes, pulmonary congestion, and sinus bradycardia. However, the final cardiac testing was noncontributory, suggesting flash pulmonary edema secondary to intranasal oxymetazoline. This case highlights a rare presentation of pulmonary compromise secondary to oxymetazoline, emphasizing the importance of intraoperative and postoperative vigilance in simple outpatient procedures.
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Affiliation(s)
| | | | | | - Jason A Sokol
- Department of Ophthalmology, University of Kansas Medical Center, Kansas City, Kansas, U.S.A
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2
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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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3
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Huang J, Cai J, Ye Q, Jiang Q, Lin H, Wu L. Fluid retention-associated adverse events in patients treated with BCR::ABL1 inhibitors based on FDA Adverse Event Reporting System (FAERS): a retrospective pharmacovigilance study. BMJ Open 2023; 13:e071456. [PMID: 37536976 PMCID: PMC10401248 DOI: 10.1136/bmjopen-2022-071456] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 07/19/2023] [Indexed: 08/05/2023] Open
Abstract
OBJECTIVES This study aimed to conduct a thorough analysis of fluid retention-associated adverse events (AEs) associated with BCR::ABL inhibitors. DESIGN A retrospective pharmacovigilance study. SETTING Food and Drug Administration Adverse Event Reporting System (FAERS) database for BCR::ABL inhibitors was searched from 1 January 2004 to 30 September 2021. MAIN OUTCOME MEASURES Reporting OR (ROR) and 95% CI were used to detect the signals. ROR was calculated by dividing the odds of fluid retention event reporting for the target drug by the odds of fluid retention event reporting for all other drugs. The signal was considered positive if the lower limit of 95% CI of ROR was >1. The analysis was run only considering coupled fluid retention events/BCR::ABL inhibitors with at least three cases. RESULTS A total of 97 823 reports were identified in FAERS. Imatinib had the most fluid retention signals, followed by dasatinib and nilotinib, while bosutinib and ponatinib had fewer signals. Periorbital oedema (ROR=24.931, 95% CI 22.404 to 27.743), chylothorax (ROR=161.427, 95% CI 125.835 to 207.085), nipple swelling (ROR=48.796, 95% CI 26.270 to 90.636), chylothorax (ROR=35.798, 95% CI 14.791 to 86.642) and gallbladder oedema (ROR=77.996, 95% CI 38.286 to 158.893) were the strongest signals detected for imatinib, dasatinib, nilotinib, bosutinib and ponatinib, respectively. Pleural effusion, pericardial effusion and pulmonary oedema were detected for all BCR::ABL inhibitors, with dasatinib having the highest RORs for pleural effusion (ROR=37.424, 95% CI 35.715 to 39.216), pericardial effusion (ROR=14.146, 95% CI 12.649 to 15.819) and pulmonary oedema (ROR=11.217, 95% CI 10.303 to 12.213). Patients aged ≥65 years using dasatinib, imatinib, nilotinib or bosutinib had higher RORs for pleural effusion, pericardial effusion and pulmonary oedema. Patients aged ≥65 years and females using imatinib had higher RORs for periorbital oedema, generalised oedema and face oedema. CONCLUSIONS This pharmacovigilance study serves as a clinical reminder to physicians to be more vigilant for fluid retention-associated AEs with BCR::ABL inhibitors.
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Affiliation(s)
- Jing Huang
- Department of Pharmacy, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang, China
| | - Juanjuan Cai
- Department of Pharmacy, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang, China
| | - Qingqing Ye
- Department of Pharmacy, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang, China
| | - Qiaoying Jiang
- Department of Pharmacy, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang, China
| | - Huan Lin
- Department of Pharmacy, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang, China
| | - Lun Wu
- Department of Pharmacy, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang, China
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Ayata R, Fujita M, Harada K, Esaki Y, Koga Y, Hisamoto Y, Asami-Noyama M, Takeda S, Harada K, Tsuruta R. A case of pulmonary edema due to guanfacine intoxication with measurement of serum guanfacine concentrations. J Toxicol Sci 2023; 48:641-644. [PMID: 38044125 DOI: 10.2131/jts.48.641] [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] [Indexed: 12/05/2023]
Abstract
Guanfacine hydrochloride extended-release (GXR) is used to treat attention deficit hyperactivity disorder. It is a selective α2A-adrenorecepor agonist that was reported to cause QT prolongation and hypotension in the event of overdosing. We report the case of a 17-year-old man who took 226 tablets of GXR 3 mg for attempted suicide. He was found complaining of dyspnea, and emergency medical services were called. When the patient was transferred to our hospital, his Glasgow coma scale was 12 (E4V3M5). He was agitated and hypoxemic. He was intubated for invasive mechanical ventilation under sedation. His chest X-ray and computed tomography scan showed pulmonary edema. Transthoracic echocardiography showed markedly reduced cardiac function. His serum guanfacine concentration peaked on day 3 after admission. His pulmonary edema improved quickly after a decrease in serum guanfacine concentration, but cardiac decompensation persisted for about 1 month. This case reveals that the decline in cardiac function after guanfacine intoxication is prolonged even after its serum concentration has decreased.
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Affiliation(s)
- Ryo Ayata
- Advanced Medical Emergency and Critical Care Center, Yamaguchi University Hospital
| | - Motoki Fujita
- Acute and General Medicine, Yamaguchi University Graduate School of Medicine
| | - Kayoko Harada
- Advanced Medical Emergency and Critical Care Center, Yamaguchi University Hospital
| | - Yusuke Esaki
- Advanced Medical Emergency and Critical Care Center, Yamaguchi University Hospital
| | - Yasutaka Koga
- Advanced Medical Emergency and Critical Care Center, Yamaguchi University Hospital
| | - Yukari Hisamoto
- Department of Respiratory Medicine and Infectious Disease, Yamaguchi University Hospital
| | - Maki Asami-Noyama
- Department of Respiratory Medicine and Infectious Disease, Yamaguchi University Hospital
| | - Saki Takeda
- Department of Forensic Medicine, Fukushima Medical University School of Medicine
| | - Kazuki Harada
- Department of Forensic Medicine, Fukushima Medical University School of Medicine
| | - Ryosuke Tsuruta
- Advanced Medical Emergency and Critical Care Center, Yamaguchi University Hospital
- Acute and General Medicine, Yamaguchi University Graduate School of Medicine
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Abstract
Phosgene (COCl2) gas is a chemical intermediate of high-volume production with numerous industrial applications worldwide. Due to its high toxicity, accidental exposure to phosgene leads to various chemical injuries, primarily resulting in chemical-induced lung injury due to inhalation. Initially, the illness is mild and presents as coughing, chest tightness, and wheezing; however, within a few hours, symptoms progress to chronic respiratory depression, refractory pulmonary edema, dyspnea, and hypoxemia, which may contribute to acute respiratory distress syndrome or even death in severe cases. Despite rapid advances in medicine, effective treatments for phosgene-inhaled poisoning are lacking. Elucidating the pathophysiology and pathogenesis of acute inhalation toxicity caused by phosgene is necessary for the development of appropriate therapeutics. In this review, we discuss extant literature on relevant mechanisms and therapeutic strategies to highlight novel ideas for the treatment of phosgene-induced acute lung injury.
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Affiliation(s)
- Chao Cao
- Research Center for Chemical Injury, Emergency and Critical Medicine of Fudan University, Shanghai, China
- Key Laboratory of Chemical Injury, Emergency and Critical Medicine of Shanghai Municipal Health Commission, Shanghai, China
- Center of Emergency and Critical Medicine, Jinshan Hospital of Fudan University, Shanghai, China
- Training Center of Acute Poisoning Treatment Technology of Fudan University Shanghai Medical College, Shanghai, China
| | - Lin Zhang
- Research Center for Chemical Injury, Emergency and Critical Medicine of Fudan University, Shanghai, China
- Key Laboratory of Chemical Injury, Emergency and Critical Medicine of Shanghai Municipal Health Commission, Shanghai, China
- Center of Emergency and Critical Medicine, Jinshan Hospital of Fudan University, Shanghai, China
| | - Jie Shen
- Research Center for Chemical Injury, Emergency and Critical Medicine of Fudan University, Shanghai, China
- Key Laboratory of Chemical Injury, Emergency and Critical Medicine of Shanghai Municipal Health Commission, Shanghai, China
- Center of Emergency and Critical Medicine, Jinshan Hospital of Fudan University, Shanghai, China
- Training Center of Acute Poisoning Treatment Technology of Fudan University Shanghai Medical College, Shanghai, China
- *Correspondence: Jie Shen,
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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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Brili S, Bei E, Kounis NG, Chrysohoou C, Antoniou CK, Kontopidou F, Bonfanti L, Cervellin G, Tousoulis DT, Tsioufis C. Hypertensive crisis and pulmonary edema following rituximab-induced anaphylaxis. Acta Biomed 2021; 92:e2021115. [PMID: 34747381 PMCID: PMC10523046 DOI: 10.23750/abm.v92is1.11120] [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: 12/14/2020] [Accepted: 12/16/2020] [Indexed: 11/23/2022]
Abstract
Rituximab is a monoclonal antibody against the protein CD20. Various lymphomas as well as non-malignant immune disorders are treated with this antibody. Hypersensitivity reactions associated with the use of rituximab include urticaria, hypotension, chest tightness, vomiting, oxygen desaturation and bronchospasm. A very uncommon case of hypertensive crisis and pulmonary edema following rituximab-induced hypersensitivity reaction in an 80-year-old man receiving rituximab for non-Hodgkin lymphoma is reported. Anaphylaxis manifesting as coronary vasospasm following drug treatment, including rituximab, could be proved a serious condition in patients who need specific treatment. In these patients desensitization protocols seem to be mandatory.
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Affiliation(s)
| | | | | | | | | | | | - Laura Bonfanti
- Emergency Department, Hospital of Sassuolo, Modena, Italy.
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8
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Appelt P, Gabriel P, Bölter C, Fiedler N, Schierle K, Salameh A, Rassler B. Left ventricular depression and pulmonary edema in rats after short-term normobaric hypoxia: effects of adrenergic blockade and reduced fluid load. Pflugers Arch 2021; 473:1723-1735. [PMID: 34510286 PMCID: PMC8528748 DOI: 10.1007/s00424-021-02618-y] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 08/13/2021] [Accepted: 08/25/2021] [Indexed: 12/25/2022]
Abstract
Acute normobaric hypoxia may induce pulmonary injury with edema (PE) and inflammation. Hypoxia is accompanied by sympathetic activation. As both acute hypoxia and high plasma catecholamine levels may elicit PE, we had originally expected that adrenergic blockade may attenuate the severity of hypoxic pulmonary injury. In particular, we investigated whether administration of drugs with reduced fluid load would be beneficial with respect to both cardiocirculatory and pulmonary functions in acute hypoxia. Rats were exposed to normobaric hypoxia (10% O2) over 1.5 or 6 h and received 0.9% NaCl or adrenergic blockers either as infusion (1 ml/h, increased fluid load) or injection (0.5 ml, reduced fluid load). Control animals were kept in normoxia and received infusions or injections of 0.9% NaCl. After 6 h of hypoxia, LV inotropic function was maintained with NaCl injection but decreased significantly with NaCl infusion. Adrenergic blockade induced a similar LV depression when fluid load was low, but did not further deteriorate LV depression after 6 h of infusion. Reduced fluid load also attenuated pulmonary injury after 6 h of hypoxia. This might be due to an effective fluid drainage into the pleural space. Adrenergic blockade could not prevent PE. In general, increased fluid load and impaired LV inotropic function promote the development of PE in acute hypoxia. The main physiologic conclusion from this study is that fluid reduction under hypoxic conditions has a protective effect on cardiopulmonary function. Consequently, appropriate fluid management has particular importance to subjects in hypoxic conditions.
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Affiliation(s)
- Peter Appelt
- Carl-Ludwig-Institute of Physiology, University of Leipzig, Leipzig, Germany
| | - Philipp Gabriel
- Carl-Ludwig-Institute of Physiology, University of Leipzig, Leipzig, Germany
| | - Christian Bölter
- Carl-Ludwig-Institute of Physiology, University of Leipzig, Leipzig, Germany
| | - Nicole Fiedler
- Carl-Ludwig-Institute of Physiology, University of Leipzig, Leipzig, Germany
| | - Katrin Schierle
- Institute of Pathology, University of Leipzig, Leipzig, Germany
| | - Aida Salameh
- Department of Pediatric Cardiology, Heart Centre, University of Leipzig, Leipzig, Germany
| | - Beate Rassler
- Carl-Ludwig-Institute of Physiology, University of Leipzig, Leipzig, Germany.
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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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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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11
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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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12
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SHIMIZU KAHORI, NANBA MAKI, TAKAISHI YU, HAYASHI NOBUTAKA, YOSHIOKA SHINYA, YAMASAKI MINEO. Acute Pulmonary Edema Induced by a Low Dose of Ritodrine Hydrochloride: A Case Report. Kobe J Med Sci 2021; 66:E166-E169. [PMID: 34001683 PMCID: PMC8212800] [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: 10/15/2020] [Accepted: 12/15/2020] [Indexed: 06/12/2023]
Abstract
OBJECTIVE Acute pulmonary edema associated with ritodrine hydrochloride is a rare, life-threatening complication, and dose and duration of ritodrine use are closely associated with this pathology. We report a case of acute pulmonary edema associated with short-duration infusion of ritodrine hydrochloride in a patient with pectus excavatum as an underlying factor. CASE REPORT A 30-year-old healthy pregnant woman was treated with oral ritodrine for tocolysis between 31 and 35 weeks of pregnancy. At 36 weeks of gestation, she went into preterm labor, with premature rupture of the membrane and breech presentation, and received an infusion of ritodrine hydrochloride for a few hours. Although she was normotensive until labor onset, mild hypertension and proteinuria were recognized. Intraoperatively, a funnel-chest deformity was observed, and she developed postoperative pulmonary edema associated with dyspnea and wet cough and confirmed on chest radiography and arterial gas analysis, and recovered with supportive care. CONCLUSION Small-dose infusion of ritodrine hydrochloride might cause pulmonary edema in patients with underlying medical problems, including pectus excavatum.
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Affiliation(s)
- KAHORI SHIMIZU
- Department of Obstetrics & Gynecology, Palmore Hospital, Hyogo, Japan
| | - MAKI NANBA
- Department of Anesthesiology, Palmore Hospital, Hyogo, Japan
| | - YU TAKAISHI
- Department of Obstetrics & Gynecology, Kobe City Medical Center General Hospital, Hyogo, Japan
| | - NOBUTAKA HAYASHI
- Department of Obstetrics & Gynecology, Kobe City Medical Center General Hospital, Hyogo, Japan
| | - SHINYA YOSHIOKA
- Department of Obstetrics & Gynecology, Kobe City Medical Center General Hospital, Hyogo, Japan
| | - MINEO YAMASAKI
- Department of Obstetrics & Gynecology, Palmore Hospital, Hyogo, Japan
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13
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Snow SJ, Henriquez AR, Thompson LC, Fisher C, Schladweiler MC, Wood CE, Kodavanti UP. Pulmonary and vascular effects of acute ozone exposure in diabetic rats fed an atherogenic diet. Toxicol Appl Pharmacol 2021; 415:115430. [PMID: 33524446 PMCID: PMC8086743 DOI: 10.1016/j.taap.2021.115430] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 01/22/2021] [Accepted: 01/26/2021] [Indexed: 01/06/2023]
Abstract
Air pollutants may increase risk for cardiopulmonary disease, particularly in susceptible populations with metabolic stressors such as diabetes and unhealthy diet. We investigated effects of inhaled ozone exposure and high-cholesterol diet (HCD) in healthy Wistar and Wistar-derived Goto-Kakizaki (GK) rats, a non-obese model of type 2 diabetes. Male rats (4-week old) were fed normal diet (ND) or HCD for 12 weeks and then exposed to filtered air or 1.0 ppm ozone (6 h/day) for 1 or 2 days. We examined pulmonary, vascular, hematology, and inflammatory responses after each exposure plus an 18-h recovery period. In both strains, ozone induced acute bronchiolar epithelial necrosis and inflammation on histopathology and pulmonary protein leakage and neutrophilia; the protein leakage was more rapid and persistent in GK compared to Wistar rats. Ozone also decreased lymphocytes after day 1 in both strains consuming ND (~50%), while HCD increased circulating leukocytes. Ozone increased plasma thrombin/antithrombin complexes and platelet disaggregation in Wistar rats on HCD and exacerbated diet effects on serum IFN-γ, IL-6, KC-GRO, IL-13, and TNF-α, which were higher with HCD (Wistar>GK). Ex vivo aortic contractility to phenylephrine was lower in GK versus Wistar rats at baseline(~30%); ozone enhanced this effect in Wistar rats on ND. GK rats on HCD had higher aortic e-NOS and tPA expression compared to Wistar rats. Ozone increased e-NOS in GK rats on ND (~3-fold) and Wistar rats on HCD (~2-fold). These findings demonstrate ways in which underlying diabetes and HCD may exacerbate pulmonary, systemic, and vascular effects of inhaled pollutants.
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MESH Headings
- Air Pollutants/toxicity
- Animals
- Aorta, Thoracic/drug effects
- Aorta, Thoracic/metabolism
- Aorta, Thoracic/physiopathology
- Biomarkers/blood
- Blood Platelets/drug effects
- Blood Platelets/metabolism
- Cholesterol, Dietary/metabolism
- Cholesterol, Dietary/toxicity
- Cytokines/blood
- Diabetes Mellitus, Type 2/blood
- Diabetes Mellitus, Type 2/complications
- Diet, Atherogenic/adverse effects
- Disease Models, Animal
- Inflammation Mediators/blood
- Inhalation Exposure
- Lung/drug effects
- Lung/metabolism
- Lung/pathology
- Lung Injury/blood
- Lung Injury/chemically induced
- Lung Injury/pathology
- Male
- Necrosis
- Ozone/toxicity
- Pulmonary Edema/blood
- Pulmonary Edema/chemically induced
- Pulmonary Edema/pathology
- Rats, Wistar
- Vascular Diseases/blood
- Vascular Diseases/chemically induced
- Vascular Diseases/physiopathology
- Vasoconstriction/drug effects
- Rats
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Affiliation(s)
- Samantha J Snow
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, United States
| | - Andres R Henriquez
- Oak Ridge Institute for Science and Education Research Participation Program, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, United States
| | - Leslie C Thompson
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, United States
| | - Cynthia Fisher
- School of Public Health, University of North Carolina, Chapel Hill, North Carolina, United States
| | - Mette C Schladweiler
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, United States
| | - Charles E Wood
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, United States
| | - Urmila P Kodavanti
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, United States.
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14
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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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15
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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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16
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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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17
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Cabrera-Aguilera I, Falcones B, Calvo-Fernández A, Benito B, Barreiro E, Gea J, Farré R, Almendros I, Farré N. The conventional isoproterenol-induced heart failure model does not consistently mimic the diaphragmatic dysfunction observed in patients. PLoS One 2020; 15:e0236923. [PMID: 32730329 PMCID: PMC7392250 DOI: 10.1371/journal.pone.0236923] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 05/20/2020] [Accepted: 07/16/2020] [Indexed: 11/25/2022] Open
Abstract
Heart failure (HF) impairs diaphragm function. Animal models realistically mimicking HF should feature both the cardiac alterations and the diaphragmatic dysfunction characterizing this disease. The isoproterenol-induced HF model is widely used, but whether it presents diaphragmatic dysfunction is unknown. However, indirect data from research in other fields suggest that isoproterenol could increase diaphragm function. The aim of this study was to test the hypothesis that the widespread rodent model of isoproterenol-induced HF results in increased diaphragmatic contractility. Forty C57BL/6J male mice were randomized into 2 groups: HF and healthy controls. After 30 days of isoproterenol infusion to establish HF, in vivo diaphragmatic excursion and ex vivo isolated diaphragm contractibility were measured. As compared with healthy controls, mice with isoproterenol-induced HF showed the expected changes in structural and functional echocardiographic parameters and lung edema. isoproterenol-induced HF increased in vivo diaphragm excursion (by ≈30%, p<0.01) and increased by ≈50% both ex vivo peak specific force (p<0.05) and tetanic force (p<0.05) at almost all 10–100 Hz frequencies (p<0.05), with reduced fatigue resistance (p<0.01) when compared with healthy controls. Expression of myosin genes encoding the main muscle fiber types revealed that Myh4 was higher in isoproterenol-induced HF than in healthy controls (p<0.05), suggesting greater distribution of type IIb fibers. These results show that the conventional isoproterenol-induced HF model increases diaphragm contraction, a finding contrary to what is observed in patients with HF. Therefore, this specific model seems limited for translational an integrative HF research, especially when cardio-respiratory interactions are investigated.
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Affiliation(s)
- Ignacio Cabrera-Aguilera
- Unitat de Biofísica i Bioenginyeria, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, Barcelona, Spain
- Heart Diseases Biomedical Research Group, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
- Department of Human Movement Sciences, School of Kinesiology, Faculty of Health Sciences, Universidad de Talca, Talca, Chile
| | - Bryan Falcones
- Unitat de Biofísica i Bioenginyeria, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, Barcelona, Spain
| | - Alicia Calvo-Fernández
- Department of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
- Heart Failure Unit, Department of Cardiology, Hospital del Mar, Barcelona, Spain
| | - Begoña Benito
- Department of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
- Cardiology Department, Hospital Universitari Vall d'Hebron, Vall d'Hebron Research Institute (VHIR), Barcelona, Spain
- CIBER de Enfermedades Cardiovasculares, Madrid, Spain
| | - Esther Barreiro
- Respiratory Department, Hospital del Mar and Hospital del Mar Medical Research Institute (IMIM), Barcelona, Spain
- Health and Experimental Sciences Department (CEXS), Universitat Pompeu Fabra, Barcelona, Spain
- CIBER de Enfermedades Respiratorias, Madrid, Spain
| | - Joaquim Gea
- Respiratory Department, Hospital del Mar and Hospital del Mar Medical Research Institute (IMIM), Barcelona, Spain
- Health and Experimental Sciences Department (CEXS), Universitat Pompeu Fabra, Barcelona, Spain
- CIBER de Enfermedades Respiratorias, Madrid, Spain
| | - Ramon Farré
- Unitat de Biofísica i Bioenginyeria, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, Barcelona, Spain
- CIBER de Enfermedades Respiratorias, Madrid, Spain
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Isaac Almendros
- Unitat de Biofísica i Bioenginyeria, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, Barcelona, Spain
- CIBER de Enfermedades Respiratorias, Madrid, Spain
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Núria Farré
- Heart Diseases Biomedical Research Group, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
- Department of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
- Heart Failure Unit, Department of Cardiology, Hospital del Mar, Barcelona, Spain
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18
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Poros B, Katchanov J, Curta A, Weig T. [Severe noncardiogenic pulmonary edema due to permeability disorder after i.v. administration of CT contrast medium with subsequent venovenous extracorporeal membrane oxygenation]. Anaesthesist 2020; 69:579-582. [PMID: 32548721 DOI: 10.1007/s00101-020-00804-8] [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] [Received: 03/26/2020] [Revised: 05/15/2020] [Accepted: 05/25/2020] [Indexed: 11/26/2022]
Abstract
Hypersensitivity reactions are one of the most feared side effects associated with the use of CT contrast agents. Bronchospasm and lung edema are known manifestations, whereby the latter occurs much less often. In anaphylaxis, numerous mechanisms can lead to cardiac failure with subsequent lung edema. In contrast, the cardiac function is not impaired in noncardiogenic pulmonary edema (NCPE), which is a rare phenomenon but with potentially fatal outcome. The exact pathophysiology of NCPE remains unknown and characteristically response to conventional anaphylaxis treatment is poor. This article presents the case of a 48-year-old man with NCPE who underwent elective coronary CT as part of the evaluation of recurrent syncope. After administration of iodinated contrast medium the patient developed a fulminant lung edema, which led to severe hypoxemia with cardiac arrest despite immediate treatment by the medical emergency team, including assisted ventilation, prednisolone, dimetindene and adrenaline. An early echocardiographic assessment after ROSC and intubation showed an intact cardiac function and no signs of valvular pathologies. Arterial blood gas analysis revealed a severe global respiratory failure (Horowitz quotient 73), profound acidosis (pH 7.06), elevated lactate and hemoglobin levels (8.9 mmol/l and 23.7 g/dl, respectively). A chest X‑ray revealed bilateral inhomogeneous opacities. Nitrous oxide was administered to improve the ventilation-perfusion mismatch. In addition, intravenous hydrocortisone was started to address the severe capillary leak syndrome. Follow-up echocardiography showed consistently stable cardiac function at all times. As the lung function deteriorated despite aggressive countermeasures, venovenous extracorporeal membrane oxygenation (ECMO) was initiated 6 h after the initial event. With the aid of ECMO support the invasiveness of mechanical ventilation could be reduced and volume substitution intensified. In the further course, microcirculatory dysfunction and respiratory function gradually improved and ECMO support could be discontinued after 70 h. The patient was extubated on day 9 and discharged to the normal ward on day 13 without any neurological impairments.
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Affiliation(s)
- B Poros
- Klinik für Anaesthesiologie, LMU Klinikum, Marchioninistr. 15, 81377, München, Deutschland.
| | - J Katchanov
- Medizinische Klinik und Poliklinik III, LMU Klinikum, Marchioninistr. 15, 81377, München, Deutschland
| | - A Curta
- Klinik und Poliklinik für Radiologie, LMU Klinikum, Marchioninistr. 15, 81377, München, Deutschland
| | - T Weig
- Klinik für Anaesthesiologie, LMU Klinikum, Marchioninistr. 15, 81377, München, Deutschland
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19
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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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20
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Abstract
INTRODUCTION Diuretics are a commonly used for the treatment of acute pulmonary edema. However, inappropriate administration of diuretic drugs can result in clinical treatment failure and cause acute pulmonary edema. This is due to rapid decreases in intravascular volume as a result of diuretic treatment. To date, the clinical phenomenon of inappropriate use of diuretics leading to acute pulmonary edema remains unexplored and unrecognized. Here, we report the first case of this problem-pulmonary edema following diuretic therapy. PATIENT CONCERNS A 71-year-old male patient who was intubated and transferred to the intensive care unit (ICU) due to respiratory failure was initially diagnosed with pneumonia as a complication of acute respiratory distress syndrome (ARDS). After treatments including antibiotics, lung protective ventilation strategies, and restrictive fluid management, his respiratory symptoms improved. However, the patient's dyspnea became more severe after experimental diuretic therapy. DIAGNOSIS A point-of-care ultrasound (POCUS) examination showed increased extravascular lung water retention during a hypovolemic state. After full examinations and analysis, the diagnosis of acute pulmonary edema was determined. INTERVENTIONS The most likely cause of acute pulmonary edema was left ventricular (LV) hyperdynamic status due to a hypovolemic status caused by excessive diuretic therapy. Consequently, we administrated intravenous fluids and a β-receptor blocker to the patient. OUTCOMES Following these treatment, the patient's respiratory distress improved remarkably. CONCLUSION We report the first case of pulmonary edema following diuretic therapy to stress the need of physicians to follow guidelines of clinical practice. Maintaining an appropriate volume status and treatment of β-receptor blockers is the key to reversing the progress of this adverse effect. In this process, POCUS is a reliable diagnostic tool to identify the cause of acute pulmonary edema and can increase the accuracy of clinical evaluations. It is likely that a wider use of POCUS will help physicians to obtain a faster, and more accurate, diagnosis of the etiology of acute pulmonary edema, thus allowing a more appropriate therapy.
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Affiliation(s)
- Lixia Liu
- Department of Intensive Care Unit (ICU), The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei
| | - Qian Zhang
- Department of Intensive Care Unit (ICU), The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei
| | - Tao Zhang
- Department of Intensive Care Unit (ICU), The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei
| | - Xinhui Wu
- Department of Intensive Care Unit (ICU), The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei
| | - Lixiao Sun
- Department of Intensive Care Unit (ICU), The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei
| | - Bin Li
- Department of Intensive Care Unit (ICU), The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei
| | - Xiaoting Wang
- Department of Intensive Care Unit (ICU), Peking Union Medical College Hospital
| | - Yangong Chao
- Department of Intensive Care Unit (ICU), The First Affiliated Hospital of Tsinghua University, Beijing, P.R. China
| | - Zhenjie Hu
- Department of Intensive Care Unit (ICU), The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei
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21
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Abstract
A 48-year-old man was brought to our emergency room with acute abdominal pain and systemic edema, indicating acute circulatory failure with lactic acidosis. Furosemide treatment paradoxically worsened the systemic edema and induced confusion. He had no drinking history but hardly ate legumes or meats containing thiamine. Administration of fursultiamine dramatically improved the symptoms and subsequently caused pulmonary edema. Thiamine deficiency may occur in nondrinkers with an unbalanced diet. In this condition, diuretic therapy can worsen the symptoms before thiamine supplementation by promoting the flushing of water-soluble vitamins but is needed for the management of secondary pulmonary edema after thiamine replenishment.
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Affiliation(s)
| | | | - Yuriko Ishida
- Department of Internal Medicine, Tomakomai City Hospital, Japan
| | - Tetsuya Horita
- Department of Internal Medicine, Tomakomai City Hospital, Japan
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22
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Kondo E, Ikeda T, Goto H, Nishikori M, Maeda N, Matsumoto K, Kitagawa H, Noda N, Sugimoto S, Hara J. Pharmacokinetics of thiotepa in high-dose regimens for autologous hematopoietic stem cell transplant in Japanese patients with pediatric tumors or adult lymphoma. Cancer Chemother Pharmacol 2019; 84:849-860. [PMID: 31428821 PMCID: PMC6768914 DOI: 10.1007/s00280-019-03914-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 10/26/2018] [Accepted: 07/25/2019] [Indexed: 12/17/2022]
Abstract
Purpose Thiotepa is used in high-dose chemotherapy (HDT) before autologous hematopoietic stem cell transplantation (HSCT) to treat solid tumors and hematological malignancies. This Phase 1 study was conducted to establish the pharmacokinetics (PK) of thiotepa in a Japanese population. Methods HDT/HSCT was performed in pediatric patients (≥ 2 years) with solid tumors or brain tumors (thiotepa 200 mg/m2/day IV-infused over 24 h on HSCT Days − 12, − 11, − 5, and − 4 and melphalan 70 mg/m2/day IV-infused over 1 h on Days − 11, − 5, and − 4) and adult patients (≥ 16 years) with malignant lymphoma (thiotepa 200 mg/m2/day 2-h IV-infusion on HSCT Days − 4 and − 3 plus busulfan 0.8 mg/kg 2-h IV-infusion every 6 h from HSCT Days − 8 to − 5). Pharmacokinetics of thiotepa were assessed following initial dose. Safety and efficacy were also evaluated. Results Nine pediatric and 10 adult patients were enrolled. Mean volume of distribution (Vz) of thiotepa normalized with body surface area (BSA) was lower for pediatric patients (16.4 L/m2) compared with adult patients (26.4 L/m2) as expected due to the higher specific surface area of children. Clearance and biological half-life were similar between pediatric and adult patients. Two serious adverse events (cardiac arrest and pulmonary edema) were observed. Survival rate (Day 100 post-HSCT) was 77.8% (95% CI 36.5–93.9%) for pediatric patients and 100% for adult patients. Conclusion Thiotepa elimination was comparable in pediatric and adult patients with cancer. Lower Vz in pediatric compared with adult patients was expected. HDT with thiotepa prior to autologous HSCT was well tolerated. Study registration Japic CTI-163433. Electronic supplementary material The online version of this article (10.1007/s00280-019-03914-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Eisei Kondo
- Department of Hematology and Oncology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
- Department of Hematology, Kawasaki Medical School, 577 Matsushima, Kurashiki, 701-0192, Japan.
| | - Takashi Ikeda
- Division of Hematology and Stem Cell Transplantation, Shizuoka Cancer Center, Shizuoka, Japan
| | - Hiroaki Goto
- Hematology/Oncology and Regenerative Medicine, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Momoko Nishikori
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Naoko Maeda
- Department of Pediatrics, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | - Kimikazu Matsumoto
- Children's Cancer Center, National Center for Child Health and Development, Tokyo, Japan
| | - Hideo Kitagawa
- Sumitomo Dainippon Pharma Co., Ltd., 6-8, Doshomachi 2-chome, Chuo-ku, Osaka, Japan
| | - Naoto Noda
- Sumitomo Dainippon Pharma Co., Ltd., 6-8, Doshomachi 2-chome, Chuo-ku, Osaka, Japan
| | - Saori Sugimoto
- Sumitomo Dainippon Pharma Co., Ltd., 6-8, Doshomachi 2-chome, Chuo-ku, Osaka, Japan
| | - Junichi Hara
- Department of Pediatric Hematology/Oncology, Children's Medical Center, Osaka City General Hospital, Osaka, Japan
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23
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Hardy PY, Depierreux F, Ferretti C. [Acute pulmonary edema and tocolytic therapy in pregnant women : clinical case and review of literature.]. Rev Med Liege 2019; 74:129-133. [PMID: 30897311] [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] [Indexed: 06/09/2023]
Abstract
We report the case of a pregnant woman, treated by nifedipine and next by atosiban for premature labour, who develop an acute pulmonary edema. The severity of symptoms and hypoxemia lead the patient to a cesarean and next to the intensive care hospitalization. This clinical case allow us to make a review of literature and reminds us the differential diagnosis to look for during an acute dyspnea in a pregnant woman and the treatment of acute pulmonary edema in these circumstances. The pathophysiological mechanisms which are at the origins of this condition and the implication of the tocolytic treatment will also be discussed.
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Affiliation(s)
- P Y Hardy
- Service d'Anesthésie-Réanimation, CHU Liège, Belgique
| | | | - C Ferretti
- Chef de Service des Soins intensifs, Centre Hospitalier Luxembourgeois, Luxembourg
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Ogawa A, Sakao S, Tanabe N, Matsubara H, Tatsumi K. Use of vasodilators for the treatment of pulmonary veno-occlusive disease and pulmonary capillary hemangiomatosis: A systematic review. Respir Investig 2019; 57:183-190. [PMID: 30473253 DOI: 10.1016/j.resinv.2018.10.004] [Citation(s) in RCA: 10] [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: 07/26/2018] [Revised: 10/02/2018] [Accepted: 10/18/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND There are several medications available to treat pulmonary arterial hypertension (PAH): PAH-targeted drugs. However, in patients with pulmonary veno-occlusive disease and pulmonary capillary hemangiomatosis (PVOD/PCH), rare diseases that cause pulmonary hypertension, the effectiveness and safety of vasodilators, including PAH-targeted drugs, are unclear. METHODS We searched English-language publications listed in three electronic databases (PubMed, Cochrane Library, and the Japan Medical Abstracts Society). Reports with efficacy outcomes (survival, improvement in 6-minute walk distance, and pulmonary vascular resistance) and data on development of pulmonary edema after administration of vasodilators to patients with PVOD/PCH were selected (1966 to August 2015). RESULTS We identified 20 reports that met our criteria. No randomized controlled or prospective controlled studies were reported. The survival time ranged from 71 minutes to 4 years or more after initiation of vasodilators. Most of the reported cases showed an improvement in the 6-minute walk distance and pulmonary vascular resistance. Pulmonary edema was reported in 15 articles, some cases of which were lethal. CONCLUSIONS The present study demonstrates the potential efficacy and difficulties in the use of vasodilators in patients with PVOD/PCH; however, drawing a firm conclusion was difficult because of the lack of randomized controlled trials. Further research is needed to ascertain if vasodilator use is beneficial and safe in patients with PVOD/PCH.
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Affiliation(s)
- Aiko Ogawa
- Department of Clinical Science, National Hospital Organization Okayama Medical Center, 1711-1 Tamasu, Kita-ku, Okayama 701-1192, Japan.
| | - Seiichiro Sakao
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan.
| | - Nobuhiro Tanabe
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan; Department of Advanced Medicine in Pulmonary Hypertension, Graduate School of Medicine, Chiba University, Chiba, Japan.
| | - Hiromi Matsubara
- Department of Clinical Science, National Hospital Organization Okayama Medical Center, 1711-1 Tamasu, Kita-ku, Okayama 701-1192, Japan
| | - Koichiro Tatsumi
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan.
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25
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Abstract
RATIONALE Diffuse alveolar hemorrhage (DAH) is a rare life-threatening condition that accompanies general anesthesia. Negative-pressure pulmonary edema (NPPE) is a rare cause of DAH. PATIENT CONCERNS A 25-year-old male patient developed hemoptysis following remifentanil administration by bolus injection with sugammadex at the emergence from general anesthesia. DIAGNOSIS Chest x-ray and computed tomography showed DAH. INTERVENTIONS Conservative care was provided with 4L of oxygen via nasal prong, 20 mg of Lasix and 2500 mg of tranexamic acid. OUTCOMES The patient was discharged uneventfully. LESSONS Muscle rigidity by remifentanil and the dissociated reversal of neuromuscular blockade by sugammadex was suspected as the cause of NPPE-related DAH. Therefore, the possibility NPPE-related DAH should be considered when using a bolus of remifentanil and sugammadex during emergence from general anesthesia.
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Affiliation(s)
| | | | | | | | - Bong Hee Park
- Department of Urology, Uijeongbu St Mary's Hospital, College of Medicine, Catholic University of Korea, Seoul, Korea
| | - Su Bin Yoo
- Department of Anesthesiology and Pain Medicine
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26
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Caudal V, Whitty J, Snead ECR, Starrak GS. Noncardiogenic pulmonary edema associated with ozone exposure in three kittens. J Am Vet Med Assoc 2018; 253:1328-1333. [PMID: 30398424 DOI: 10.2460/javma.253.10.1328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
CASE DESCRIPTION Three 21-week-old sexually intact female sibling domestic shorthair cats were brought to an emergency clinic because of signs of sudden respiratory distress that were noted by the owner after the cats had been confined for approximately 10 hours in a room with an operating ozone-generating air purifier. No other potential toxicant exposures were reported. CLINICAL FINDINGS On initial examination, the 3 cats were severely dyspneic and tachypneic. Pulmonary crackles were audible on thoracic auscultation. Thoracic radiography revealed a marked peribronchial, unstructured interstitial pulmonary pattern that coalesced to a patchy alveolar pattern, consistent with noncardiogenic pulmonary edema. TREATMENT AND OUTCOME A diuretic (furosemide, 2 mg/kg [0.9 mg/lb], IV) and bronchodilator (terbutaline sulfate, 0.01 mg/kg [0.005 mg/lb], IM) were administered, and supplemental oxygen was provided by placing the cats in an oxygen cage at 80% oxygen saturation. By 24 hours after placement in the oxygen cage, all cats had unremarkable respiratory rates and thoracic auscultation findings. Complete resolution of the respiratory signs and radiographic pulmonary lesions was achieved within 48 to 72 hours after initial evaluation. At a recheck examination performed 3 months after initial evaluation, the cats remained free of respiratory signs, and no radiographic pulmonary lesions were detected. CLINICAL RELEVANCE To the authors' knowledge, this was the first reported case of pulmonary toxicosis believed to have been caused by ozone exposure in cats. Associated respiratory signs were successfully and rapidly reversed following oxygen supplementation and medical treatment.
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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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28
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Abstract
RATIONALE Acute non-cardiogenic pulmonary edema (ANPE) is a rare but challenging complication which occurs during the perioperative period, mainly before and after the extubation in the course of the recovery period of general anesthesia. It is characterized by increased fluid in extravascular pulmonary spaces, preventing gas exchange and further resulting in respiratory failure. PATIENT CONCERNS A 12-year-old boy who had undergone island skin flap in the right upper limb and who developed a unilateral pulmonary edema after the administration of neostigmine during the recovery period of general anesthesia. The neostigmine was administered to reverse neuromuscular block. DIAGNOSES Acute non-cardiogenic pulmonary edema. INTERVENTIONS The patient was transferred to intensive care unit (ICU) and treated with mechanical ventilation (controlled mode ventilation pattern, CMV) and other supportive treatment. OUTCOMES The oxyhemoglobin saturation of the patient returned to the normal level with symptoms and signs of ANPE significantly alleviated. The mechanical ventilation was withdrawn by the fourth day, and no sequela of vital organs was observed. LESSONS Although neostigmine is widely used for recovery from neuromuscular block and exhibits satisfactory effect in most cases, there is a potential risk of ANPE in some cases, which is rare but potentially fatal and could affect the patient outcomes. Therefore, it is necessary for anesthetists to closely monitor the vital signs of patients after administration of neostigmine in the perioperative period.
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Affiliation(s)
- Wenjing Zhang
- Department of Anesthesia, China-Japan Union Hospital of Jilin University
| | - Cong Ning
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun, P.R. China
| | - Guoqing Zhao
- Department of Anesthesia, China-Japan Union Hospital of Jilin University
| | - Zhenbo Su
- Department of Anesthesia, China-Japan Union Hospital of Jilin University
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Gao X, Qian P, Cen D, Hong W, Peng Q, Xue M. Synthesis of phosphatidylcholine in rats with oleic acid-induced pulmonary edema and effect of exogenous pulmonary surfactant on its De Novo synthesis. PLoS One 2018; 13:e0193719. [PMID: 29554114 PMCID: PMC5858825 DOI: 10.1371/journal.pone.0193719] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [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: 07/04/2017] [Accepted: 02/14/2018] [Indexed: 11/26/2022] Open
Abstract
In mammals, oleic acid (OA) induces pulmonary edema (PE), which can initiate acute lung injury (ALI) and lead to acute respiratory distress syndrome (ARDS). Pulmonary surfactant (PS) plays a key role in a broad range of treatments for ARDS. The aim of the present investigation was to assess changes in the synthesis of phosphatidylcholine (PC) from choline and determine the effect of exogenous PS on its de novo synthesis in rats with OA-induced PE. Experimental rats were randomized into three groups, including a control group, OA-induced PE group, and OA-induced group treated with exogenous PS (OA-PS). Twenty-four rats were sacrificed 4 h after induction of the OA model, and tissue was examined by light and electron microscopy to assess the severity of ALI using an established scoring system at the end of the experiment. After 15 μCi 3H-choline chloride was injected intravenously, eight rats in each group were sacrificed at 4, 8, and 16 h. The radioactivity of 3H incorporated into total phospholipid (TPL) and desaturated phosphatidylcholine (DSPC) was measured in bronchoalveolar lavage fluid (BALF) and lung tissue (LT) using a liquid scintillation counter and was expressed as counts per minute (CPM). Results showed that TPL, DSPC, and the ratio of DSPC/total protein (TP) in lung tissue decreased 4 h after challenge with OA, but the levels recovered after 8 and 16 h. At 8 h after injection, 3H-TPL and 3H-DSPC radioactivity in the lungs reached its peak. Importantly, 3H-DSPC CPM were significantly lower in the PS treatment group (LT: Control: 62327 ± 9108; OA-PE: 97315 ± 10083; OA-PS: 45127 ± 10034, P < 0.05; BALF: Control: 7771 ± 1768; OA-PE: 8097 ± 1799; OA-PE: 3651 ± 1027, P < 0.05). Furthermore, DSPC secretory rate (SR) in the lungs was significantly lower in the PS treatment group at 4 h after injection (Control: 0.014 ± 0.003; OA-PE: 0.011 ± 0.004; OA-PS: 0.023 ± 0.006, P < 0.05). Therefore, we hypothesize that exogenous PS treatments may adversely affect endogenous de novo synthetic and secretory phospholipid pathways via feedback inhibition. This novel finding reveals the specific involvement of exogenous PS in endogenous synthetic and secretory phospholipid pathways during the treatment of ARDS. This information improves our understanding of how PS treatment is beneficial against ARDS and opens new opportunities for expanding its use.
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Affiliation(s)
- Xiwen Gao
- Department of Respiratory Diseases, Minhang Hospital, Fudan University, Minhang District, Shanghai, P.R. China
- * E-mail:
| | - Peiyu Qian
- Oncology Bioinformatic Research Center, Minhang Hospital, Fudan University, Minhang District, Shanghai, P.R. China
| | - Dong Cen
- Centre for Clinical Laboratory, Ningbo Yinzhou No 2 Hospital, Zhejiang
| | - Weijun Hong
- Department of Respiratory Diseases, Minhang Hospital, Fudan University, Minhang District, Shanghai, P.R. China
| | - Qing Peng
- Department of Respiratory Diseases, Minhang Hospital, Fudan University, Minhang District, Shanghai, P.R. China
| | - Min Xue
- Department of Respiratory Diseases, Minhang Hospital, Fudan University, Minhang District, Shanghai, P.R. China
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Miller CN, Dye JA, Schladweiler MC, Richards JH, Ledbetter AD, Stewart E, Kodavanti UP. Acute inhalation of ozone induces DNA methylation of apelin in lungs of Long-Evans rats. Inhal Toxicol 2018; 30:178-186. [PMID: 29947284 PMCID: PMC6681647 DOI: 10.1080/08958378.2018.1483984] [Citation(s) in RCA: 12] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 05/01/2018] [Accepted: 05/28/2018] [Indexed: 02/07/2023]
Abstract
Apelin has cardiopulmonary protective properties that promote vasodilation and maintenance of the endothelial barrier. While reductions in apelin have been identified as a contributor to various lung diseases, including pulmonary edema, its role in the effect of air pollutants has not been examined. Thus, in the current study, we sought to investigate if apelin is a downstream target of inhaled ozone and if such change in expression is related to altered DNA methylation in the lung. Male, Long-Evans rats were exposed to filtered air or 1.0 ppm ozone for 4 h. Ventilation changes were assessed using whole-body plethysmography immediately following exposure, and markers of pulmonary edema and inflammation were assessed in the bronchoaveolar lavage (BAL) fluid. The enzymatic regulators of DNA methylation were measured in the lung, along with methylation and hydroxymethylation of the apelin promoter. Data showed that ozone exposure was associated with increased enhanced pause and protein leakage in the BAL fluid. Ozone exposure reduced DNA cytosine-5-methyltransferase (DNMT) activity and Dnmt3a/b gene expression. Exposure-induced upregulation of proliferating cell nuclear antigen, indicative of DNA damage, repair, and maintenance methylation. Increased methylation and reduced hydroxymethylation were measured on the apelin promoter. These epigenetic modifications accompanied ozone-induced reduction of apelin expression and development of pulmonary edema. In conclusion, epigenetic regulation, specifically increased methylation of the apelin promoter downstream of DNA damage, may lead to reductions in protective signaling of the apelinergic system, contributing to the pulmonary edema observed following the exposure to oxidant air pollution.
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Affiliation(s)
- Colette N. Miller
- Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Janice A. Dye
- Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Mette C. Schladweiler
- Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Judy H. Richards
- Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Allen D. Ledbetter
- Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Erica Stewart
- Oak Ridge Institute for Science and Education, Oak Ridge, TN, USA
| | - Urmila P. Kodavanti
- Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
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Zhang D, Zhou J, Ye LC, Li J, Wu Z, Li Y, Li C. Autophagy maintains the integrity of endothelial barrier in LPS-induced lung injury. J Cell Physiol 2018; 233:688-698. [PMID: 28328069 DOI: 10.1002/jcp.25928] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [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: 10/06/2016] [Accepted: 03/21/2017] [Indexed: 12/26/2022]
Abstract
Understanding the role and underlying regulation mechanism of autophagy in lipopolysaccharide-induced lung injury (LPS-LI) may provide potentially new pharmacological targets for treatment of acute lung injury. The aim of this study was to investigate the functional significance of autophagy in LPS-LI. The autophagy of human pulmonary microvascular endothelial cells (HPMVECs) and mice was inhibited before they were challenged with LPS. In vitro, permeability, vitality, and the LDH release rate of the cells were detected, the zonula occluden-1 (ZO-1) expression and the stress fiber formation were determined. In vivo, the lung injury was assessed. We found LPS caused high permeability and increased lactate dehydrogenase (LDH) release rate, lowered viability of the cells, inhibited the ZO-1 expression and induced stress fiber formation, these effects were further aggravated by prohibiting the level of autophagy. Consistently, in in vivo experiments, LPS-induced serious lung injury, which was reflected as edema, leukocyte infiltration and hemorrhage in lung tissue, and the high concentration of pro-inflammation cytokines tumor necrosis factor (TNF)-α and interleukin (IL)-1β in bronchoalveolar lavage fluid (BALF). Inhibiting autophagy further exacerbated LPS-LI. It appears that autophagy played a protective role in LPS-LI in part through restricting the injury of lung microvascular barrier.
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Affiliation(s)
- Dan Zhang
- Department of Respiratory Medicine, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Wenzhou City, Zhejiang Province, P.R. China
| | - Jian Zhou
- Department of Respiratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, P.R. China
| | - Le Chi Ye
- Department of Oncological Surgery, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Wenzhou City, Zhejiang Province, P.R. China
| | - Jing Li
- Department of Respiratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, P.R. China
| | - Zhenzhou Wu
- Department of Respiratory Medicine, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Wenzhou City, Zhejiang Province, P.R. China
| | - Yuping Li
- Department of Respiratory Medicine, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Wenzhou City, Zhejiang Province, P.R. China
| | - Chichi Li
- Department of Plastic Surgery, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Wenzhou City, Zhejiang Province, P.R. China
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Shinohara S, Sunami R, Uchida Y, Hirata S, Suzuki K. Association between total dose of ritodrine hydrochloride and pulmonary oedema in twin pregnancy: a retrospective cohort study in Japan. BMJ Open 2017; 7:e018118. [PMID: 29289935 PMCID: PMC5778295 DOI: 10.1136/bmjopen-2017-018118] [Citation(s) in RCA: 5] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVE Pulmonary oedema is recognised as a severe side effect of ritodrine hydrochloride. Recently, the number of twin pregnancies has been increasing. Few studies have reported the association between total dose of ritodrine hydrochloride prior to delivery and pulmonary oedema in twin pregnancy. We aimed to examine this association and determine the optimal cut-off threshold of total ritodrine hydrochloride dose to predict the incidence of pulmonary oedema in twin pregnancy based on obstetric records. DESIGN Retrospective cohort study. SETTING Yamanashi Prefectural Central Hospital, Japan. PARTICIPANTS Two hundred and twenty-six women with twin pregnancy who delivered at Yamanashi Prefectural Central Hospital between September 2009 and November 2016. METHODS The obstetric records of the participants were analysed. We defined 1 unit of ritodrine hydrochloride as 72 mg per 24 hours continuous transfusion at 50 µg/min to calculate the dose of ritodrine used for tocolysis. OUTCOME MEASURES Multivariable logistic regression analysis was performed to examine the association between total dose of ritodrine hydrochloride used for threatened preterm labour and pulmonary oedema, while controlling for potential confounding factors. Then, a receiver-operating characteristic curve was used to determine the optimal cut-off of total ritodrine dose to predict pulmonary oedema incidence. RESULTS Mean maternal age was 32 (range, 18-46) years; 143 participants were nulliparous (63.3%), 109 had (48.2%) term deliveries and 194 (85.8%) had caesarean deliveries. The overall incidence of pulmonary oedema was 13.7% (31/226). Multivariable analysis showed that the total dose of ritodrine was significantly associated with pulmonary oedema (adjusted OR 1.02; 95% CI 1.004 to 1.03). The best cut-off point to predict the incidence of pulmonary oedema was 26 units (1872 mg) (sensitivity, 61.3%; specificity, 87.8%). CONCLUSION Our results suggest that consideration of the total dose of ritodrine hydrochloride is helpful in the management of patients with threatened preterm labour in twin pregnancy.
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Affiliation(s)
- Satoshi Shinohara
- Department of Obstetrics and Gynecology, Yamanashi Prefectural Central Hospital, Kofu, Yamanashi, Japan
| | - Rei Sunami
- Department of Obstetrics and Gynecology, Yamanashi Prefectural Central Hospital, Kofu, Yamanashi, Japan
| | - Yuzo Uchida
- Department of Obstetrics and Gynecology, Yamanashi Prefectural Central Hospital, Kofu, Yamanashi, Japan
| | - Shuji Hirata
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Kohta Suzuki
- Department of Health and Psychosocial Medicine, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
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Affiliation(s)
- Ali S Raja
- From the Departments of Emergency Medicine (A.S.R., E.S.M.), Radiology (E.J.F.), Medicine (S.E.W.), and Pathology (G.E.), Massachusetts General Hospital, and the Departments of Emergency Medicine (A.S.R., E.S.M.), Radiology (A.S.R., E.J.F.), Medicine (S.E.W.), and Pathology (G.E.), Harvard Medical School - both in Boston
| | - Emily S Miller
- From the Departments of Emergency Medicine (A.S.R., E.S.M.), Radiology (E.J.F.), Medicine (S.E.W.), and Pathology (G.E.), Massachusetts General Hospital, and the Departments of Emergency Medicine (A.S.R., E.S.M.), Radiology (A.S.R., E.J.F.), Medicine (S.E.W.), and Pathology (G.E.), Harvard Medical School - both in Boston
| | - Efrén J Flores
- From the Departments of Emergency Medicine (A.S.R., E.S.M.), Radiology (E.J.F.), Medicine (S.E.W.), and Pathology (G.E.), Massachusetts General Hospital, and the Departments of Emergency Medicine (A.S.R., E.S.M.), Radiology (A.S.R., E.J.F.), Medicine (S.E.W.), and Pathology (G.E.), Harvard Medical School - both in Boston
| | - Sarah E Wakeman
- From the Departments of Emergency Medicine (A.S.R., E.S.M.), Radiology (E.J.F.), Medicine (S.E.W.), and Pathology (G.E.), Massachusetts General Hospital, and the Departments of Emergency Medicine (A.S.R., E.S.M.), Radiology (A.S.R., E.J.F.), Medicine (S.E.W.), and Pathology (G.E.), Harvard Medical School - both in Boston
| | - George Eng
- From the Departments of Emergency Medicine (A.S.R., E.S.M.), Radiology (E.J.F.), Medicine (S.E.W.), and Pathology (G.E.), Massachusetts General Hospital, and the Departments of Emergency Medicine (A.S.R., E.S.M.), Radiology (A.S.R., E.J.F.), Medicine (S.E.W.), and Pathology (G.E.), Harvard Medical School - both in Boston
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Xue R, Jiang J, Dong B, Tan W, Sun Y, Zhao J, Chen Y, Dong Y, Liu C. DJ-1 activates autophagy in the repression of cardiac hypertrophy. Arch Biochem Biophys 2017; 633:124-132. [PMID: 28941803 DOI: 10.1016/j.abb.2017.09.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [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: 01/05/2017] [Revised: 09/10/2017] [Accepted: 09/18/2017] [Indexed: 01/01/2023]
Abstract
Cardiac hypertrophy is the risk factor of heart failure when the heart is confronted with pressure overload or neurohumoral stimuli. Autophagy, a conserved degradative pathway, is one of the important mechanisms involved in the regulation of cardiac hypertrophy. DJ-1 is a traditional anti-oxidative protein and emerging evidence suggested that DJ-1 might modulate autophagy. However, the regulation of autophagy by DJ-1 in the process of cardiac hypertrophy remains unknown. In our study, we firstly discovered that the expression of DJ-1declined in the process of pressure overload cardiac hypertrophy, and its alteration was parallel with the impairment of autophagy. Furthermore, we proved that DJ-1 knockout mice exhibited a more hypertrophied phenotype than wildtype mice in cardiac hypertrophy which indicated that DJ-1 is responsible for the repression of cardiac hypertrophy. Furthermore, DJ-1 knockout significantly exacerbated pulmonary edema due to cardiac hypertrophy. In the process of cardiac hypertrophy, DJ-1 knockout significantly impaired autophagy activation and enhanced mTORC1 and mTORC2 phosphorylation were found. Similarly, our in vitro study proved that DJ-1 overexpression ameliorated phenylephrine (PE)-induced cardiac hypertrophy and promoted autophagy activation. Taken together, DJ-1 might repress both pressure overload and PE-induced cardiac hypertrophy via the activation of autophagy.
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Affiliation(s)
- Ruicong Xue
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China; Key Laboratory on Assisted Circulation, Ministry of Health, Guangzhou, China
| | - Jingzhou Jiang
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China; Key Laboratory on Assisted Circulation, Ministry of Health, Guangzhou, China
| | - Bin Dong
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China; Key Laboratory on Assisted Circulation, Ministry of Health, Guangzhou, China
| | - Weiping Tan
- Department of Respiratory, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Yu Sun
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China; Key Laboratory on Assisted Circulation, Ministry of Health, Guangzhou, China
| | - Jingjing Zhao
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China; Key Laboratory on Assisted Circulation, Ministry of Health, Guangzhou, China
| | - Yili Chen
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China; Key Laboratory on Assisted Circulation, Ministry of Health, Guangzhou, China
| | - Yugang Dong
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China; Key Laboratory on Assisted Circulation, Ministry of Health, Guangzhou, China.
| | - Chen Liu
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China; Key Laboratory on Assisted Circulation, Ministry of Health, Guangzhou, China.
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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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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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Xu C, Jiang L, Zou Y, Xing J, Sun H, Zhu B, Zhang H, Wang J, Zhang J. Involvement of water channel Aquaporin 5 in H 2S-induced pulmonary edema. Environ Toxicol Pharmacol 2017; 49:202-211. [PMID: 28088675 DOI: 10.1016/j.etap.2016.12.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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: 10/08/2016] [Revised: 12/23/2016] [Accepted: 12/27/2016] [Indexed: 06/06/2023]
Abstract
Acute exposure to hydrogen sulfide (H2S) poses a significant threat to life, and the lung is one of the primary target organs of H2S. However, the mechanisms involved in H2S-induced acute pulmonary edema are poorly understood. This study aims to investigate the effects of H2S on the expression of water channel aquaporin 5 (AQP5) and to elucidate the signaling pathways involved in AQP5 regulation. In an in vivo study, C57BL6 mice were exposed to sub-lethal concentrations of inhaled H2S, and histological injury of the lungs and ultrastructure injury of the epithelial cells were evaluated. With real-time PCR and western blot assays, we found that H2S exposure contributed to a significant decrease in AQP5 expression both in murine lung tissue and the A549 cell line, and the ERK1/2 and p38 MAPK signaling pathways were demonstrated to be implicated in AQP5 regulation. Therefore, adjusting AQP5 protein levels could be considered a therapeutic strategy for the treatment of APE induced by H2S and other hazardous gases.
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Affiliation(s)
- Chunyang Xu
- Department of Emergency Medicine, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu, 210029, China
| | - Lei Jiang
- Department of Emergency Medicine, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu, 210029, China
| | - Yuxia Zou
- Key Lab of Modern Toxicology (NJMU), Ministry of Education. Department of Toxicology, School of Public Health, Nanjing Medical University, 818 Tianyuan East Road, Nanjing, Jiangsu, 211166, China
| | - Jingjing Xing
- Department of Emergency Medicine, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu, 210029, China
| | - Hao Sun
- Department of Emergency Medicine, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu, 210029, China
| | - Baoli Zhu
- Department of Occupational Disease Prophylactic-Therapeutic Institution, Jiangsu Provincial Center for Disease Prevention and Control, 122 Heban Cun, Nanjing, Jiangsu, 210028, China
| | - Hengdong Zhang
- Department of Occupational Disease Prophylactic-Therapeutic Institution, Jiangsu Provincial Center for Disease Prevention and Control, 122 Heban Cun, Nanjing, Jiangsu, 210028, China
| | - Jun Wang
- Key Lab of Modern Toxicology (NJMU), Ministry of Education. Department of Toxicology, School of Public Health, Nanjing Medical University, 818 Tianyuan East Road, Nanjing, Jiangsu, 211166, China.
| | - Jinsong Zhang
- Department of Emergency Medicine, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu, 210029, China.
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Hsiao SH, Tumbleson ME, Constable PD, Haschek WM. Use of Formalin-Fixed Tissues to Determine Fumonisin B1-Induced Sphingolipid Alterations in Swine. J Vet Diagn Invest 2016; 19:425-30. [PMID: 17609357 DOI: 10.1177/104063870701900417] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [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] Open
Abstract
Fumonisin B1 is a mycotoxin that causes lethal pulmonary edema in swine. Sphinganine, sphingosine, and the sphinganine to sphingosine ratio are important biomarkers for fumonisin B1 exposure. Currently, tissues selected for sphinganine and sphingosine analyses are frozen at −80°C until analyses take place. However, for diagnostics and some research projects, formalin is used more routinely as a preservative for long-term storage of tissues. To determine whether formalin-fixed tissues could be used for sphinganine and sphingosine analyses, sphinganine and sphingosine concentrations were quantified in both frozen and formalin-fixed lung, liver, kidney, and heart from fumonisin B1-treated and control pigs. Tissues were evaluated 3 months after freezing and 3, 6, and 12 months after formalin fixation. Sphinganine, sphingosine, and the sphinganine to sphingosine ratio of both frozen and formalin-fixed lung and liver from fumonisin B1-treated pigs were elevated. Formalin-fixed tissues had lower sphinganine and sphingosine concentrations but higher sphinganine to sphingosine ratios than the corresponding frozen tissues. Storage in formalin for up to 12 months did not affect the results. Sphingosine analysis could not be performed in formalin-fixed heart and kidney because of noninterpretable chromatograms. Therefore, formalin-fixed lung and liver can be used to determine fumonisin B1-induced sphinganine and sphingosine alterations in swine, with the sphinganine to sphingosine ratio being the most useful.
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Affiliation(s)
- Shih-Hsuan Hsiao
- Veterinary Diagnostic Laboratory, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, IL 61802, USA.
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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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Abstract
The purpose of this paper is to discuss the role and efficacy of dextran in vascular procedures using evidence-based data from the review of surgical literature. A MEDLINE search using “dextran,” “vascular surgery,” and “antiplatelet therapy” as keywords was performed for English-language articles. Further references were obtained through cross-referencing the bibliography cited in each work. Dextran is commonly used in carotid endarterectomy (CEA) patients where the embolic rate is reduced by 46%, resulting in fewer procedure-related strokes. As a prophylactic agent against thrombosis, multiple randomized studies have reported its benefit over other antithrombotic medications. Dextran is also particularly useful in “difficult” infragenicular lower extremity bypasses where artificial grafts (such as polytetrafluoroethylene [PTFE] or umbilical vein) are used in the setting of poor outflow vessels, or those with composite grafts and small-caliber venous conduits. Distal bypasses with adjunctive procedures (eg, arteriovenous fistula or anastomotic cuffs) also have a better outcome with the addition of dextran. Dextran has numerous important implications in vascular surgery, in particular with CEA patients or “difficult” infragenicular bypasses. Its effectiveness with endovascular stents remains unknown.
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Affiliation(s)
- Farshad Abir
- Yale University School of Medicine, Section of Vascular Surgery, New Haven, CT 06520-5062, USA
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Vafaee F. Using Multi-objective Optimization to Identify Dynamical Network Biomarkers as Early-warning Signals of Complex Diseases. Sci Rep 2016; 6:22023. [PMID: 26906975 PMCID: PMC4764930 DOI: 10.1038/srep22023] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [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: 11/17/2015] [Accepted: 02/03/2016] [Indexed: 12/31/2022] Open
Abstract
Biomarkers have gained immense scientific interest and clinical value in the practice of medicine. With unprecedented advances in high-throughput technologies, research interest in identifying novel and customized disease biomarkers for early detection, diagnosis, or drug responses is rapidly growing. Biomarkers can be identified in different levels of molecular biomarkers, networks biomarkers and dynamical network biomarkers (DNBs). The latter is a recently developed concept which relies on the idea that a cell is a complex system whose behavior is emerged from interplay of various molecules, and this network of molecules dynamically changes over time. A DNB can serve as an early-warning signal of disease progression, or as a leading network that drives the system into the disease state, and thus unravels mechanisms of disease initiation and progression. It is therefore of great importance to identify DNBs efficiently and reliably. In this work, the problem of DNB identification is defined as a multi-objective optimization problem, and a framework to identify DNBs out of time-course high-throughput data is proposed. Temporal gene expression data of a lung injury with carbonyl chloride inhalation exposure has been used as a case study, and the functional role of the discovered biomarker in the pathogenesis of lung injury has been thoroughly analyzed.
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Affiliation(s)
- Fatemeh Vafaee
- Charles Perkins Centre, University of Sydney, Sydney, Australia
- School of Mathematics and Statistics, University of Sydney, Sydney, Australia
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Xu X, Liu N, Zhang YX, Cao J, Wu D, Peng Q, Wang HB, Sun WC. The Protective Effects of HJB-1, a Derivative of 17-Hydroxy-Jolkinolide B, on LPS-Induced Acute Distress Respiratory Syndrome Mice. Molecules 2016; 21:77. [PMID: 26760995 PMCID: PMC6273719 DOI: 10.3390/molecules21010077] [Citation(s) in RCA: 10] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 01/04/2016] [Accepted: 01/07/2016] [Indexed: 01/11/2023] Open
Abstract
Acute respiratory distress syndrome (ARDS),which is inflammatory disorder of the lung, which is caused by pneumonia, aspiration of gastric contents, trauma and sepsis, results in widespread lung inflammation and increased pulmonary vascular permeability. Its pathogenesis is complicated and the mortality is high. Thus, there is a tremendous need for new therapies. We have reported that HJB-1, a 17-hydroxy-jolkinolide B derivative, exhibited strong anti-inflammatory effects in vitro. In this study, we investigated its impacts on LPS-induced ARDS mice. We found that HJB-1 significantly alleviated LPS-induced pulmonary histological alterations, inflammatory cells infiltration, lung edema, as well as the generation of inflammatory cytokines TNF-α, IL-1β and IL-6 in BALF. In addition, HJB-1 markedly suppressed LPS-induced IκB-α degradation, nuclear accumulation of NF-κB p65 subunit and MAPK phosphorylation. These results suggested that HJB-1 improved LPS-induced ARDS by suppressing LPS-induced NF-κB and MAPK activation.
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Affiliation(s)
- Xiaohan Xu
- Central Laboratory, The Second Clinical Hospital, Jilin University, Changchun 130041, China.
- Key Laboratory of Zoonosis, Ministry of Education, Institute of Zoonosis, Jilin University, Changchun 130062, China.
- School of Life Sciences and Technology, Tongji University, Shanghai 200092, China.
| | - Ning Liu
- Central Laboratory, The Second Clinical Hospital, Jilin University, Changchun 130041, China.
| | - Yu-Xin Zhang
- Key Laboratory of Molecular Enzymology & Engineering, Ministry of Education, College of Life Science, Jilin University, Changchun 130012, China.
| | - Jinjin Cao
- Central Laboratory, The Second Clinical Hospital, Jilin University, Changchun 130041, China.
| | - Donglin Wu
- Jilin Provincial Center for Disease Control and Prevention, Changchun 130062, China.
| | - Qisheng Peng
- Key Laboratory of Zoonosis, Ministry of Education, Institute of Zoonosis, Jilin University, Changchun 130062, China.
| | - Hong-Bing Wang
- School of Life Sciences and Technology, Tongji University, Shanghai 200092, China.
| | - Wan-Chun Sun
- Central Laboratory, The Second Clinical Hospital, Jilin University, Changchun 130041, China.
- Key Laboratory of Zoonosis, Ministry of Education, Institute of Zoonosis, Jilin University, Changchun 130062, China.
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Fahmi ANA, Shehatou GSG, Shebl AM, Salem HA. Febuxostat protects rats against lipopolysaccharide-induced lung inflammation in a dose-dependent manner. Naunyn Schmiedebergs Arch Pharmacol 2015; 389:269-78. [PMID: 26713331 DOI: 10.1007/s00210-015-1202-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [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: 10/17/2015] [Accepted: 12/15/2015] [Indexed: 01/08/2023]
Abstract
The aim of the present work was to investigate possible protective effects of febuxostat, a highly potent xanthine oxidase inhibitor, against acute lung injury (ALI) induced by lipopolysaccharide (LPS) in rats. Male Sprague Dawley rats were randomly divided into six groups, as follows: (i) vehicle control group; (ii) and (iii) febuxostat 10 and febuxostat 15 groups, drug-treated controls; (iv) LPS group, receiving an intraperitoneal injection of LPS (7.5 mg/kg); (v) and (vi) febuxostat 10-LPS and febuxostat 15-LPS groups, receiving oral treatment of febuxostat (10 and 15 mg/kg/day, respectively) for 7 days before LPS. After 18 h administration of LPS, blood was collected for C-reactive protein (CRP) measurement. Bronchoalveolar lavage fluid (BALF) was examined for leukocyte infiltration, lactate dehydrogenase (LDH) activity, protein content, and total nitrate/nitrite. Lung weight gain was determined, and lung tissue homogenate was prepared and evaluated for oxidative stress. Tumor necrosis factor-α (TNF-α) was assessed in BALF and lung homogenate. Moreover, histological changes of lung tissues were evaluated. LPS elicited lung injury characterized by increased lung water content (by 1.2 fold), leukocyte infiltration (by 13 fold), inflammation and oxidative stress (indicated by increased malondialdehyde (MDA), by 3.4 fold), and reduced superoxide dismutase (SOD) activity (by 34 %). Febuxostat dose-dependently decreased LPS-induced lung edema and elevations in BALF protein content, infiltration of leukocytes, and LDH activity. Moreover, the elevated levels of TNF-α in BALF and lung tissue of LPS-treated rats were attenuated by febuxostat pretreatment. Febuxostat also displayed a potent antioxidant activity by decreasing lung tissue levels of MDA and enhancing SOD activity. Histological analysis of lung tissue further demonstrated that febuxostat dose-dependently reversed LPS-induced histopathological changes. These findings demonstrate a significant dose-dependent protection by febuxostat against LPS-induced lung inflammation in rats.
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Affiliation(s)
- Alaa N A Fahmi
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt
| | - George S G Shehatou
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt.
| | - Abdelhadi M Shebl
- Department of Pathology, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Hatem A Salem
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt
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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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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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Jiang YX, Dai ZL, Zhang XP, Zhao W, Huang Q, Gao LK. Dexmedetomidine alleviates pulmonary edema by upregulating AQP1 and AQP5 expression in rats with acute lung injury induced by lipopolysaccharide. ACTA ACUST UNITED AC 2015; 35:684-688. [PMID: 26489622 DOI: 10.1007/s11596-015-1490-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [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: 02/02/2015] [Revised: 06/29/2015] [Indexed: 01/11/2023]
Abstract
This study aims to elucidate the mechanisms by which dexmedetomidine alleviates pulmonary edema in rats with acute lung injury induced by lipopolysaccharide (LPS). Male Wistar rats were randomly divided into five groups: normal saline control (NS) group, receiving intravenous 0.9% normal saline (5 mL/kg); LPS group, receiving intravenous LPS (10 mg/kg); small-dose dexmedetomidine (S) group, treated with a small dose of dexmedetomidine (0.5 μg · kg(-1) · h(-1)); medium-dose dexmedetomidine (M) group, treated with a medium dose of dexmedetomidine (2.5 μg · kg(-1) · h(-1)); high-dose dexmedetomidine (H) group, treated with a high dose of dexmedetomidine (5 μg · kg(-1) · h(-1)). The rats were sacrificed 6 h after intravenous injection of LPS or NS, and the lungs were removed for evaluating histological characteristics and determining the lung wet/dry weight ratio (W/D). The levels of tumor necrosis factor-alpha (TNF-α) and interleukin-1β (IL-1β) in the lung tissues were assessed by enzyme- linked immunosorbent assay (ELISA). The mRNA and protein expression levels of aquaporin-1 (AQP1) and aquaporin-5 (AQP5) were detected by RT-PCR, immunohistochemistry, and Western blotting. The lung tissues from the LPS groups were significantly damaged, which were less pronounced in the H group but not in the small-dose dexmedetomidine group or medium-dose dexmedetomidine group. The W/D and the concentrations of TNF-α and IL-1β in the pulmonary tissues were increased in the LPS group as compared with those in NS group, which were reduced in the H group but not in S group or M group (P<0.01). The expression of AQP1 and AQP5 was lower in the LPS group than in the NS group, and significantly increased in the H group but not in the S group or M group (P<0.01). Our findings suggest that dexmedetomidine may alleviate pulmonary edema by increasing the expression of AQP-1 and AQP-5.
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Affiliation(s)
- Yuan-Xu Jiang
- Department of Anesthesiology, Shenzhen People's Hospital, Shenzhen, 518020, China.
| | - Zhong-Liang Dai
- Department of Anesthesiology, Shenzhen People's Hospital, Shenzhen, 518020, China
| | - Xue-Ping Zhang
- Department of Anesthesiology, Shenzhen People's Hospital, Shenzhen, 518020, China.
| | - Wei Zhao
- Department of Anesthesiology, Zhujiang Hospital, Nanfang Medical University, Guangzhou, 518000, China
| | - Qiang Huang
- Department of Anesthesiology, Shenzhen People's Hospital, Shenzhen, 518020, China
| | - Li-Kun Gao
- Department of Pathology, Shenzhen People's Hospital, Shenzhen, 518020, China
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Endrizzi J, Nobay F, Wiegand T, Porter E. Bronchoscopic Findings Associated with Inhaled Chlorine Toxicity. J Emerg Med 2015; 49:e123-e125. [PMID: 26153031 DOI: 10.1016/j.jemermed.2015.04.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2015] [Accepted: 04/16/2015] [Indexed: 06/04/2023]
Affiliation(s)
- Julie Endrizzi
- Department of Emergency Medicine, University of Rochester, Rochester, New York
| | - Flavia Nobay
- Department of Emergency Medicine, University of Rochester, Rochester, New York
| | - Timothy Wiegand
- Department of Emergency Medicine, University of Rochester, Rochester, New York
| | - Everett Porter
- Department of Emergency Medicine, University of Rochester, Rochester, New York
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Spiesser-Robelet L, Martin B, Carceller AM, Bussières JF, Touzin K, Audibert F, Lachance C, Ferreira E. [Adverse effects and hemodynamic effects of nifedipine as a tocolytic]. J Gynecol Obstet Hum Reprod 2015; 44:614-620. [PMID: 25283592 DOI: 10.1016/j.jgyn.2014.08.010] [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: 03/07/2014] [Revised: 08/01/2014] [Accepted: 08/28/2014] [Indexed: 06/03/2023]
Abstract
OBJECTIVES To describe maternal and fetal adverse effects, in particular cardiorespiratory, of nifedipine as tocolytic, as well as effects on hemodynamic parameters. MATERIALS AND METHODS A retrospective evaluative study describing the use of nifedipine as tocolytic at CHU Sainte-Justine in Montreal. Demographic data as well as maternal blood pressure and adverse effects, and maternal and fetal heart rate were collected from medical records of women treated with nifedipine following our tocolysis protocol between January 1st 2004 and March 1st 2007. RESULTS The medical records of 213 pregnant women were included in the study. Cardiorespiratory adverse effects were noted in 69 (32.4%); of these, 19 (8.9%) had serious cardiorespiratory adverse events, including 6 acute pulmonary edema or overload. Mean maternal systolic and diastolic blood pressures were significantly decreased and mean maternal and fetal heart rates were significantly increased after the bolus dose. Other adverse effects were reported for 100 (46.9%) women. CONCLUSION Nifedipine may cause cardiorespiratory adverse effects warranting a close monitoring.
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Affiliation(s)
- L Spiesser-Robelet
- Service de pharmacie, CHU d'Angers, 4, rue Larrey, 49933 Angers cedex 9, France; Faculté de pharmacie, université d'Angers, 16, boulevard Daviers, 49045 Angers, France.
| | - B Martin
- Département de pharmacie, CHU Sainte-Justine, faculté de pharmacie, université de Montréal, Montréal, Québec, Canada
| | - A-M Carceller
- Département de pédiatrie, CHU Sainte-Justine, faculté de médecine, université de Montréal, Montréal, Québec, Canada
| | - J-F Bussières
- Département de pharmacie, CHU Sainte-Justine, faculté de pharmacie, université de Montréal, Montréal, Québec, Canada
| | - K Touzin
- Département de pharmacie, CHU Sainte-Justine, faculté de pharmacie, université de Montréal, Montréal, Québec, Canada
| | - F Audibert
- Département d'obstétrique et gynécologie, CHU Sainte-Justine, faculté de médecine, université de Montréal, Montréal, Québec, Canada
| | - C Lachance
- Département de pédiatrie, CHU Sainte-Justine, faculté de médecine, université de Montréal, Montréal, Québec, Canada
| | - E Ferreira
- Département de pharmacie, CHU Sainte-Justine, faculté de pharmacie, université de Montréal, Montréal, Québec, Canada
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Du Q, Yan R, Guo K, Gao B. [A case of suspected acute toxic pulmonary edema caused by notrogen oxide]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2015; 33:705-707. [PMID: 26832714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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