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Koc K, Ozek NS, Aysin F, Demir O, Yilmaz A, Yilmaz M, Geyikoglu F, Erol HS. Hispidulin exerts a protective effect against oleic acid induced-ARDS in the rat via inhibition of ACE activity and MAPK pathway. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2024; 34:755-766. [PMID: 36624973 DOI: 10.1080/09603123.2023.2166023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 01/02/2023] [Indexed: 06/17/2023]
Abstract
This study investigates the protective role of Hispidulin on acute respiratory distress syndrome (ARDS) in rats. Rats were divided into three groups: control, ARDS, ARDS+ Hispidulin. The ARDS models were established by injecting rats with oleic acid. Hispidulin (100 mg/kg) was injected i.p. an hour before ARDS. Myeloperoxidase (MPO), Interleukin-8 (IL-8), Mitogen-activated protein kinases (MAPK), Lipid Peroxidation (LPO), Superoxide Dismutase (SOD), Glutathione (GSH), and Angiotensin-converting enzyme (ACE) were determined by ELISA. Tumor necrosis factor-alpha (TNF-α) expression was described by RT-qPCR. Caspase-3 immunostaining was performed to evaluate apoptosis. Compared with the model group, a significant decrease was observed in the MPO, IL-8, MAPK, ACE, LPO levels, and TNF-α expression in the ARDS+ Hispidulin group. Moreover, reduced caspase-3 immunoreactivity and activity of ACE were detected in the Hispidulin+ARDS group. The protective effect of Hispidulin treatment may act through inhibition of the ACE activity and then regulation of inflammatory cytokine level and alteration of apoptosis.
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Affiliation(s)
- Kubra Koc
- Department of Biology, Faculty of Science, Ataturk University, Erzurum, Turkey
| | - Nihal Simsek Ozek
- Department of Biology, Faculty of Science, Ataturk University, Erzurum, Turkey
- East Anatolian High Technology Research and Application Center (DAYTAM), Ataturk University, Erzurum, Turkey
| | - Ferhunde Aysin
- Department of Biology, Faculty of Science, Ataturk University, Erzurum, Turkey
- East Anatolian High Technology Research and Application Center (DAYTAM), Ataturk University, Erzurum, Turkey
| | - Ozlem Demir
- Department of Histology and Embryology, Faculty of Medicine, Erzincan Binali Yıldırım University, Erzincan, Turkey
| | - Asli Yilmaz
- Department of Molecular Biology and Genetics, Faculty of Science, Atatürk University, Erzurum, Turkey
| | - Mehmet Yilmaz
- Department of Nanoscience and Nanoengineering, Atatürk University, Erzurum, Turkey
| | - Fatime Geyikoglu
- Department of Biology, Faculty of Science, Ataturk University, Erzurum, Turkey
| | - Huseyin Serkan Erol
- Department of Biochemistry, Kastamonu University, Faculty of Veterinary Medicine, Kastamonu, TURKEY
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Silva AR, de Souza e Souza KFC, Souza TBD, Younes-Ibrahim M, Burth P, de Castro Faria Neto HC, Gonçalves-de-Albuquerque CF. The Na/K-ATPase role as a signal transducer in lung inflammation. Front Immunol 2024; 14:1287512. [PMID: 38299144 PMCID: PMC10827986 DOI: 10.3389/fimmu.2023.1287512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 12/26/2023] [Indexed: 02/02/2024] Open
Abstract
Acute respiratory distress syndrome (ARDS) is marked by damage to the capillary endothelium and alveolar epithelium following edema formation and cell infiltration. Currently, there are no effective treatments for severe ARDS. Pathologies such as sepsis, pneumonia, fat embolism, and severe trauma may cause ARDS with respiratory failure. The primary mechanism of edema clearance is the epithelial cells' Na/K-ATPase (NKA) activity. NKA is an enzyme that maintains the electrochemical gradient and cell homeostasis by transporting Na+ and K+ ions across the cell membrane. Direct injury on alveolar cells or changes in ion transport caused by infections decreases the NKA activity, loosening tight junctions in epithelial cells and causing edema formation. In addition, NKA acts as a receptor triggering signal transduction in response to the binding of cardiac glycosides. The ouabain (a cardiac glycoside) and oleic acid induce lung injury by targeting NKA. Besides enzymatic inhibition, the NKA triggers intracellular signal transduction, fostering proinflammatory cytokines production and contributing to lung injury. Herein, we reviewed and discussed the crucial role of NKA in edema clearance, lung injury, and intracellular signaling pathway activation leading to lung inflammation, thus putting the NKA as a protagonist in lung injury pathology.
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Affiliation(s)
- Adriana Ribeiro Silva
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
| | | | - Thamires Bandeira De Souza
- Laboratório de Imunofarmacologia, Departamento de Ciências Fisiológicas, Universidade Federal do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
- Departamento de Biologia Celular e Molecular, Instituto de Biologia, Universidade Federal Fluminense, Niterói, Brazil
| | - Mauricio Younes-Ibrahim
- Departamento de Medicina Interna, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Patrícia Burth
- Departamento de Biologia Celular e Molecular, Instituto de Biologia, Universidade Federal Fluminense, Niterói, Brazil
| | | | - Cassiano Felippe Gonçalves-de-Albuquerque
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
- Laboratório de Imunofarmacologia, Departamento de Ciências Fisiológicas, Universidade Federal do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
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Koc K. Hippophae rhamnoides Prevents Oleic Acid-Induced Acute Respiratory Distress Syndrome by Releasing Acetylcholinesterase Activity and Mitigation of Angiotensin-Converting Enzyme Level. J Med Food 2024; 27:72-78. [PMID: 37976106 DOI: 10.1089/jmf.2023.0150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023] Open
Abstract
Hippophae rhamnoides exhibit a wide variety of medicinal and pharmacological effects. The present study aims to determine the role of ethanol extract of H. rhamnoides on oleic acid (OA)-induced acute respiratory distress syndrome (ARDS) in rats. Male rats were randomly divided into the following groups: (I) Control, (II) OA, and (III) OA+H. rhamnoides. H. rhamnoides extract (500 mg/kg) was given orally for 2 weeks before OA in Group III. Levels of total antioxidant capacity, total oxidant status (TOS), myeloperoxidase (MPO), mitogen-activated protein kinase (MAPK), acetylcholinesterase (AChE), and angiotensin-converting enzyme (ACE) were quantified by enzyme-linked immunosorbent assay (ELISA). Real time quantitative polymerase chain reaction was utilized to evaluate the expression of nuclear factor kappa B (NF-κB), tumor necrosis factor-alpha (TNF-α), interleukin (IL)-6, and matrix metalloproteinase 2 (MMP2). Also, Caspase-3 immunostaining and expression were performed to evaluate apoptosis. Compared with the OA group, there was a significantly decrease in the levels of MPO, TOS, MAPK, and ACE and in the expression of NF-κB, TNF-α, IL-6, MMP2, and Caspase-3 in the H. rhamnoides administration group. Moreover, the activity of AChE and level of TAS were substantially higher in the H. rhamnoides administration compared with the OA group. The findings in the study suggest that the protective effect of H. rhamnoides pretreatment may act through inhibition of the ACE activity, releasing AChE, regulation of inflammatory cytokine levels, and suppression of apoptotic process in ARDS.
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Affiliation(s)
- Kubra Koc
- Department of Biology, Faculty of Science, Ataturk University, Erzurum, Turkey
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Dincer B, Cinar I, Erol HS, Demirci B, Terzi F. Gossypin mitigates oxidative damage by downregulating the molecular signaling pathway in oleic acid-induced acute lung injury. J Mol Recognit 2023; 36:e3058. [PMID: 37696682 DOI: 10.1002/jmr.3058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 07/16/2023] [Accepted: 08/29/2023] [Indexed: 09/13/2023]
Abstract
One of the leading causes of acute lung injury, which is linked to a high death rate, is pulmonary fat embolism. Increases in proinflammatory cytokines and the production of free radicals are related to the pathophysiology of acute lung injury. Antioxidants that scavenge free radicals play a protective role against acute lung injury. Gossypin has been proven to have antioxidant, antimicrobial, and anti-inflammatory properties. In this study, we compared the role of Gossypin with the therapeutically used drug Dexamethasone in the acute lung injury model caused by oleic acid in rats. Thirty rats were divided into five groups; Sham, Oleic acid model, Oleic acid+Dexamethasone (0.1 mg/kg), Oleic acid+Gossypin (10 and 20 mg/kg). Two hours after pretreatment with Dexamethasone or Gossypin, the acute lung injury model was created by injecting 1 g/kg oleic acid into the femoral vein. Three hours following the oleic acid injection, rats were decapitated. Lung tissues were extracted for histological, immunohistochemical, biochemical, PCR, and SEM imaging assessment. The oleic acid injection caused an increase in lipid peroxidation and catalase activity, pathological changes in lung tissue, decreased superoxide dismutase activity, and glutathione level, and increased TNF-α, IL-1β, IL-6, and IL-8 expression. However, these changes were attenuated after treatment with Gossypin and Dexamethasone. By reducing the expression of proinflammatory cytokines and attenuating oxidative stress, Gossypin pretreatment provides a new target that is equally effective as dexamethasone in the treatment of oleic acid-induced acute lung injury.
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Affiliation(s)
- Busra Dincer
- Department of Pharmacology, Faculty of Pharmacy, Ondokuz Mayis University, Samsun, Turkey
| | - Irfan Cinar
- Department of Pharmacology, Faculty of Medicine, Kastamonu University, Kastamonu, Turkey
| | - Huseyin Serkan Erol
- Department of Biochemistry, Faculty of Veterinary Medicine, Kastamonu University, Kastamonu, Turkey
| | - Beste Demirci
- Department of Anatomy, Faculty of Veterinary Medicine, Kastamonu University, Kastamonu, Turkey
| | - Funda Terzi
- Department of Pathology, Faculty of Veterinary Medicine, Kastamonu University, Kastamonu, Turkey
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Barbeta E, Arrieta M, Motos A, Bobi J, Yang H, Yang M, Tanzella G, Di Ginnatale P, Nogas S, Vargas CR, Cabrera R, Battaglini D, Meli A, Kiarostami K, Vázquez N, Fernández-Barat L, Rigol M, Mellado-Artigas R, Frigola G, Camprubí-Rimblas M, Ferrer P, Martinez D, Artigas A, Ferrando C, Ferrer M, Torres A. A long-lasting porcine model of ARDS caused by pneumonia and ventilator-induced lung injury. Crit Care 2023; 27:239. [PMID: 37328874 PMCID: PMC10276390 DOI: 10.1186/s13054-023-04512-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 05/30/2023] [Indexed: 06/18/2023] Open
Abstract
BACKGROUND Animal models of acute respiratory distress syndrome (ARDS) do not completely resemble human ARDS, struggling translational research. We aimed to characterize a porcine model of ARDS induced by pneumonia-the most common risk factor in humans-and analyze the additional effect of ventilator-induced lung injury (VILI). METHODS Bronchoscopy-guided instillation of a multidrug-resistant Pseudomonas aeruginosa strain was performed in ten healthy pigs. In six animals (pneumonia-with-VILI group), pulmonary damage was further increased by VILI applied 3 h before instillation and until ARDS was diagnosed by PaO2/FiO2 < 150 mmHg. Four animals (pneumonia-without-VILI group) were protectively ventilated 3 h before inoculum and thereafter. Gas exchange, respiratory mechanics, hemodynamics, microbiological studies and inflammatory markers were analyzed during the 96-h experiment. During necropsy, lobar samples were also analyzed. RESULTS All animals from pneumonia-with-VILI group reached Berlin criteria for ARDS diagnosis until the end of experiment. The mean duration under ARDS diagnosis was 46.8 ± 7.7 h; the lowest PaO2/FiO2 was 83 ± 5.45 mmHg. The group of pigs that were not subjected to VILI did not meet ARDS criteria, even when presenting with bilateral pneumonia. Animals developing ARDS presented hemodynamic instability as well as severe hypercapnia despite high-minute ventilation. Unlike the pneumonia-without-VILI group, the ARDS animals presented lower static compliance (p = 0.011) and increased pulmonary permeability (p = 0.013). The highest burden of P. aeruginosa was found at pneumonia diagnosis in all animals, as well as a high inflammatory response shown by a release of interleukin (IL)-6 and IL-8. At histological examination, only animals comprising the pneumonia-with-VILI group presented signs consistent with diffuse alveolar damage. CONCLUSIONS In conclusion, we established an accurate pulmonary sepsis-induced ARDS model.
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Affiliation(s)
- Enric Barbeta
- Surgical Intensive Care Unit, Hospital Clínic de Barcelona, Barcelona, Spain
- CIBER de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- University of Barcelona (UB), Barcelona, Spain
| | - Marta Arrieta
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- University of Barcelona (UB), Barcelona, Spain
| | - Ana Motos
- CIBER de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain.
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain.
- University of Barcelona (UB), Barcelona, Spain.
| | - Joaquim Bobi
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- University of Barcelona (UB), Barcelona, Spain
- Department of Cardiology, Erasmus MC, University Medical Center Rotterdam, 3015, Rotterdam, The Netherlands
- Cardiology Department, Institute Clinic Cardiovascular (ICCV), Hospital Clinic, Barcelona, Spain
| | - Hua Yang
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- University of Barcelona (UB), Barcelona, Spain
- Department of Respiratory and Critical Care Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing Institute of Respiratory Medicine, Beijing, China
| | - Minlan Yang
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- University of Barcelona (UB), Barcelona, Spain
- Department of Infectious Diseases, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Giacomo Tanzella
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- Department of Anesthesia and Intensive Care, IRCCS for Oncology and Neurosciences, San Martino Policlinico Hospital, Genoa, Italy
| | - Pierluigi Di Ginnatale
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- Department of Anesthesiology, Critical Care Medicine and Emergency, SS. Annunziata Hospital, Chieti, Italy
| | - Stefano Nogas
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- Department of Anesthesia and Intensive Care, IRCCS for Oncology and Neurosciences, San Martino Policlinico Hospital, Genoa, Italy
| | - Carmen Rosa Vargas
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- University of Barcelona (UB), Barcelona, Spain
| | - Roberto Cabrera
- CIBER de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
| | - Denise Battaglini
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- University of Barcelona (UB), Barcelona, Spain
- Department of Anesthesia and Intensive Care, IRCCS for Oncology and Neurosciences, San Martino Policlinico Hospital, Genoa, Italy
| | - Andrea Meli
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- Department of Anesthesia and Intensive Care, Fondazione IRCCS Ca'Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Kasra Kiarostami
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- University of Barcelona (UB), Barcelona, Spain
| | - Nil Vázquez
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- University of Barcelona (UB), Barcelona, Spain
| | - Laia Fernández-Barat
- CIBER de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- University of Barcelona (UB), Barcelona, Spain
| | - Montserrat Rigol
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- University of Barcelona (UB), Barcelona, Spain
- Cardiology Department, Institute Clinic Cardiovascular (ICCV), Hospital Clinic, Barcelona, Spain
| | - Ricard Mellado-Artigas
- Surgical Intensive Care Unit, Hospital Clínic de Barcelona, Barcelona, Spain
- CIBER de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
| | - Gerard Frigola
- Critical Care Center, Parc Taulí Hospital Universitari, Institut d'Investigació i Innovació Parc Taulí (I3PT), Universitat Autònoma de Barcelona, Sabadell, Spain
| | - Marta Camprubí-Rimblas
- CIBER de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
- Critical Care Center, Parc Taulí Hospital Universitari, Institut d'Investigació i Innovació Parc Taulí (I3PT), Universitat Autònoma de Barcelona, Sabadell, Spain
| | - Pau Ferrer
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- Universitat Pompeu Fabra, Barcelona, Spain
| | - Daniel Martinez
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- Department of Pathology, Hospital Clinic, Barcelona, Spain
| | - Antonio Artigas
- CIBER de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
- Critical Care Center, Parc Taulí Hospital Universitari, Institut d'Investigació i Innovació Parc Taulí (I3PT), Universitat Autònoma de Barcelona, Sabadell, Spain
| | - Carlos Ferrando
- Surgical Intensive Care Unit, Hospital Clínic de Barcelona, Barcelona, Spain
- CIBER de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- University of Barcelona (UB), Barcelona, Spain
| | - Miquel Ferrer
- CIBER de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- University of Barcelona (UB), Barcelona, Spain
- Pneumology Service, Respiratory Institute, Hospital Clinic of Barcelona, Villarroel st. 170, 08036, Barcelona, Spain
| | - Antoni Torres
- CIBER de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain.
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain.
- University of Barcelona (UB), Barcelona, Spain.
- Pneumology Service, Respiratory Institute, Hospital Clinic of Barcelona, Villarroel st. 170, 08036, Barcelona, Spain.
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Cai Q, Jin Y, Jia Z, Liu Z. Paraquat Induces Lung Injury via miR-199-Mediated SET in a Mouse Model. Front Pharmacol 2022; 13:856441. [PMID: 35431948 PMCID: PMC9011139 DOI: 10.3389/fphar.2022.856441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 02/21/2022] [Indexed: 11/13/2022] Open
Abstract
Objective: To explore the molecular mechanism of lung injury caused by paraquat (PQ) poisoning by investigating miR-199-mediated SET.Methods: A paraquat poisoning model was established in C57BL/6 male mice via intraperitoneal injection of paraquat. The mice were transfected with miR-199 siRNA and or mimic. After 14 days of treatment, pathophysiological changes of the lung were observed and lung tissue was analyzed via Hematoxylin-Eosin staining. The levels of miR-199, SETs, surfactant protein SP-A and SP-B, and inflammatory and oxidative factors were analyzed by qPCR, Western Blot, and ELISA kits.Results: A acute lung-injury (ALI) model was established using PQ treatment and confirmed with edema of pulmonary endothelium with low electronic density of endothelial cytoplasm, presence of protein-rich fluid, and numerous erythrocytes in alveolar space, concentric figures of damaged tubular myelin, alveolar destruction, and increase in inflammatory cell numbers. Compared with the control group, miR-199 and SET levels were reduced in the PQ-treated group. miR-199 siRNA increased the SET level, inflammatory and oxidative levels, and reduced the levels of SP-A and SP-B, and miR-199 mimic reduced the SET level, inflammatory and oxidative levels, and increased the levels of SP-A and SP-B. PQ treatment reduced miR-199 level.Conclusion: Paraquat induces ALI by affecting miR-199-mediated SET.
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Hanafy NAN, El-Kemary MA. Silymarin/curcumin loaded albumin nanoparticles coated by chitosan as muco-inhalable delivery system observing anti-inflammatory and anti COVID-19 characterizations in oleic acid triggered lung injury and in vitro COVID-19 experiment. Int J Biol Macromol 2022; 198:101-110. [PMID: 34968533 PMCID: PMC8712435 DOI: 10.1016/j.ijbiomac.2021.12.073] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 11/28/2021] [Accepted: 12/11/2021] [Indexed: 02/08/2023]
Abstract
Respiratory infected by COVID-19 represents a major global health problem at moment even after recovery from virus corona. Since, the lung lesions for infected patients are still sufferings from acute respiratory distress syndrome including alveolar septal edema, pneumonia, hyperplasia, and hyaline membranes Therefore, there is an urgent need to identify additional candidates having ability to overcome inflammatory process and can enhance efficacy in the treatment of COVID-19. The polypenolic extracts were integrated into moeties of bovine serum albumin (BSA) and then were coated by chitosan as a mucoadhesion polymer. The results of interleukin-6, and c-reactive protein showed significant reduction in group treated by Encap. SIL + CUR (64 ± 0.8 Pg/μL & 6 ± 0.5 μg/μL) compared to group treated by Cham. + CUR (102 ± 0.8 Pg/μL & 7 ± 0.5 μg/μL) respectively and free capsules (with no any drug inside) (148 ± 0.6 Pg/μL & 10 ± 0.6 μg/μL) respectively. Histopathology profile was improved completely. Additionally, encapsulating silymarin showed anti-viral activity in vitro COVID-19 experiment. It can be summarized that muco-inhalable delivery system (MIDS) loaded by silymarin can be used to overcome inflammation induced by oleic acid and to overcome COVID-19.
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Affiliation(s)
- Nemany A N Hanafy
- Nanomedicine group, Institute of Nanoscience and Nanotechnology, Kafrelsheikh University, 33516 Kafrelsheikh, Egypt.
| | - Maged A El-Kemary
- Nanomedicine group, Institute of Nanoscience and Nanotechnology, Kafrelsheikh University, 33516 Kafrelsheikh, Egypt.
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8
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Millar JE, Wildi K, Bartnikowski N, Bouquet M, Hyslop K, Passmore MR, Ki KK, See Hoe LE, Obonyo NG, Neyton L, Pedersen S, Rozencwajg S, Baillie JK, Li Bassi G, Suen JY, McAuley DF, Fraser JF. Characterizing preclinical sub-phenotypic models of acute respiratory distress syndrome: An experimental ovine study. Physiol Rep 2021; 9:e15048. [PMID: 34617676 PMCID: PMC8495778 DOI: 10.14814/phy2.15048] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 08/13/2021] [Accepted: 08/15/2021] [Indexed: 12/15/2022] Open
Abstract
The acute respiratory distress syndrome (ARDS) describes a heterogenous population of patients with acute severe respiratory failure. However, contemporary advances have begun to identify distinct sub-phenotypes that exist within its broader envelope. These sub-phenotypes have varied outcomes and respond differently to several previously studied interventions. A more precise understanding of their pathobiology and an ability to prospectively identify them, may allow for the development of precision therapies in ARDS. Historically, animal models have played a key role in translational research, although few studies have so far assessed either the ability of animal models to replicate these sub-phenotypes or investigated the presence of sub-phenotypes within animal models. Here, in three ovine models of ARDS, using combinations of oleic acid and intravenous, or intratracheal lipopolysaccharide, we investigated the presence of sub-phenotypes which qualitatively resemble those found in clinical cohorts. Principal Component Analysis and partitional clustering identified two clusters, differentiated by markers of shock, inflammation, and lung injury. This study provides a first exploration of ARDS phenotypes in preclinical models and suggests a methodology for investigating this phenomenon in future studies.
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Affiliation(s)
- Jonathan E. Millar
- Critical Care Research GroupThe Prince Charles HospitalBrisbaneAustralia
- Faculty of MedicineUniversity of QueenslandBrisbaneAustralia
- Roslin InstituteUniversity of EdinburghEdinburghUK
| | - Karin Wildi
- Critical Care Research GroupThe Prince Charles HospitalBrisbaneAustralia
- Faculty of MedicineUniversity of QueenslandBrisbaneAustralia
- Cardiovascular Research Institute BaselBaselSwitzerland
| | - Nicole Bartnikowski
- Critical Care Research GroupThe Prince Charles HospitalBrisbaneAustralia
- Institute of Health and Biomedical InnovationQueensland University of TechnologyAustralia
| | - Mahe Bouquet
- Critical Care Research GroupThe Prince Charles HospitalBrisbaneAustralia
- Faculty of MedicineUniversity of QueenslandBrisbaneAustralia
| | - Kieran Hyslop
- Critical Care Research GroupThe Prince Charles HospitalBrisbaneAustralia
- Faculty of MedicineUniversity of QueenslandBrisbaneAustralia
| | - Margaret R. Passmore
- Critical Care Research GroupThe Prince Charles HospitalBrisbaneAustralia
- Faculty of MedicineUniversity of QueenslandBrisbaneAustralia
| | - Katrina K. Ki
- Critical Care Research GroupThe Prince Charles HospitalBrisbaneAustralia
- Faculty of MedicineUniversity of QueenslandBrisbaneAustralia
| | - Louise E. See Hoe
- Critical Care Research GroupThe Prince Charles HospitalBrisbaneAustralia
- Faculty of MedicineUniversity of QueenslandBrisbaneAustralia
| | - Nchafatso G. Obonyo
- Critical Care Research GroupThe Prince Charles HospitalBrisbaneAustralia
- Wellcome Trust Centre for Global Health ResearchImperial College LondonUK
| | | | - Sanne Pedersen
- Critical Care Research GroupThe Prince Charles HospitalBrisbaneAustralia
| | - Sacha Rozencwajg
- Critical Care Research GroupThe Prince Charles HospitalBrisbaneAustralia
- Sorbonne UniversitésUPMC Université Paris 06INSERMUMRS‐1166ICAN Institute of Cardiometabolism and Nutrition, Medical ICUPitié‐Salpêtrière University HospitalParisFrance
| | | | - Gianluigi Li Bassi
- Critical Care Research GroupThe Prince Charles HospitalBrisbaneAustralia
- Faculty of MedicineUniversity of QueenslandBrisbaneAustralia
| | - Jacky Y. Suen
- Critical Care Research GroupThe Prince Charles HospitalBrisbaneAustralia
- Faculty of MedicineUniversity of QueenslandBrisbaneAustralia
| | - Daniel F. McAuley
- Wellcome‐Wolfson Institute for Experimental MedicineQueen’s University BelfastBelfastUK
| | - John F. Fraser
- Critical Care Research GroupThe Prince Charles HospitalBrisbaneAustralia
- Faculty of MedicineUniversity of QueenslandBrisbaneAustralia
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Nambiar S, Tan DBA, Clynick B, Bong SH, Rawlinson C, Gummer J, Corte TJ, Glaspole I, Moodley YP, Trengove R. Untargeted metabolomics of human plasma reveal lipid markers unique to chronic obstructive pulmonary disease and idiopathic pulmonary fibrosis. Proteomics Clin Appl 2021; 15:e2000039. [PMID: 33580915 DOI: 10.1002/prca.202000039] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 11/13/2020] [Accepted: 12/16/2020] [Indexed: 12/19/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) is characterised by airway inflammation and progressive airflow limitation, whereas idiopathic pulmonary fibrosis (IPF) is characterised by a restrictive pattern due to fibrosis and impaired gas exchange. We undertook metabolomic analysis of blood samples in IPF, COPD and healthy controls (HC) to determine differences in circulating molecules and identify novel pathogenic pathways. An untargeted metabolomics using an ultra-high-performance liquid chromatography-quadrupole time-of-flight mass spectrometer (UHPLC-QTOF-MS) was performed to profile plasma of patients with COPD (n = 21), and IPF (n = 24) in comparison to plasma from healthy controls (HC; n = 20). The most significant features were identified using multiple database matching. One-way ANOVA and variable importance in projection (VIP) scores were also used to highlight metabolites that influence the specific disease groups. Non-polar metabolites such as fatty acids (FA) and membrane lipids were well resolved and a total of 4805 features were identified. The most prominent metabolite composition differences in lipid mediators identified at ∼2-3 fold higher in both diseases compared to HC were palmitoleic acid, oleic acid and linoleic acid; and dihydrotestosterone was lower in both diseases. We demonstrated that COPD and IPF were characterised by systemic changes in lipid constituents such as essential FA sampled from circulating plasma.
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Affiliation(s)
- Shabarinath Nambiar
- Separation Science and Metabolomics Laboratory, Murdoch University, Murdoch, WA, Australia
| | - Dino Bee Aik Tan
- School of Biomedical Sciences, University of Western Australia, Nedlands, WA, Australia.,Stem Cell Unit, Institute for Respiratory Health, Nedlands, WA, Australia
| | - Britt Clynick
- School of Biomedical Sciences, University of Western Australia, Nedlands, WA, Australia.,Stem Cell Unit, Institute for Respiratory Health, Nedlands, WA, Australia
| | - Sze How Bong
- Separation Science and Metabolomics Laboratory, Murdoch University, Murdoch, WA, Australia
| | - Catherine Rawlinson
- The Centre for Crop and Disease Management, Curtin University, Bentley, WA, Australia
| | - Joel Gummer
- Separation Science and Metabolomics Laboratory, Murdoch University, Murdoch, WA, Australia
| | - Tamera J Corte
- Department of Respiratory Medicine, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia.,School of Medicine, University of Sydney, Sydney, New South Wales, Australia
| | - Ian Glaspole
- Department of Allergy and Respiratory Medicine, The Alfred Hospital, Melbourne, Victoria, Australia.,Faculty of Medicine, Monash University, Melbourne, Victoria, Australia
| | - Yuben P Moodley
- School of Biomedical Sciences, University of Western Australia, Nedlands, WA, Australia.,Stem Cell Unit, Institute for Respiratory Health, Nedlands, WA, Australia.,School of Medicine, University of Western Australia, Nedlands, WA, Australia.,Department of Respiratory Medicine, Fiona Stanley Hospital, Murdoch, WA, Australia
| | - Robert Trengove
- Separation Science and Metabolomics Laboratory, Murdoch University, Murdoch, WA, Australia
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10
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Martins CA, Santos MCBD, Gonçalves-de-Albuquerque CF, Castro-Faria-Neto HC, Castro-Faria MV, Burth P, Younes-Ibrahim M. The relationship of oleic acid/albumin molar ratio and clinical outcomes in leptospirosis. Heliyon 2021; 7:e06420. [PMID: 33732938 PMCID: PMC7944043 DOI: 10.1016/j.heliyon.2021.e06420] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 01/12/2021] [Accepted: 03/01/2021] [Indexed: 11/16/2022] Open
Abstract
Human leptospirosis is an acute infectious zoonosis presenting specific lipid disorders. Previous in vitro studies showed both leptospira glycolipoprotein endotoxin, and high oleic acid levels were associated with Na/K-ATPase inhibition that is amplified by the reduction of circulating albumin levels. In this study, we aimed to investigate the relationship of oleic acid/albumin (OA/A) molar ratio and clinical outcomes in Leptospirosis. Through a prospective observational cohort study employing high-performance liquid chromatography (HPLC) we sequentially determined serum concentrations of nonesterified fatty acids (NEFA) and albumin in twenty-eight patients with severe leptospirosis since their hospital admission. Twenty patients recovered, and eight died. Data was distributed in two groups according to clinical outcomes. Oleic acid/albumin molar ratios (OA/A), initial samples, were higher than those in healthy donors. The ratio OA/A, however, persisted high in dying patients, whereas patients who survived had a reduction matching to healthy donors. Biochemical alterations suggest that cure is correlated to the reestablishment of the OA/A molar ratio, while fatal outcomes related to persisting OA/A imbalances. Analysis by receiver operating characteristic (ROC) showed the area under the curve of 0.864 and the cutoff value of 0.715 being associated with a high odds ratio. Lipid analysis from patients with leptospirosis had an acute high serum OA/A molar ratio, and sustained imbalance has a high odds ratio and strong correlation with mortality.
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Affiliation(s)
- Caroline Azevedo Martins
- Laboratório Integrado de Nefrologia, Department of Internal Medicine, Medical Sciences School, State University of Rio de Janeiro, Brazil
| | - Maria Conceição B dos Santos
- Laboratório Integrado de Nefrologia, Department of Internal Medicine, Medical Sciences School, State University of Rio de Janeiro, Brazil
| | - Cassiano Felippe Gonçalves-de-Albuquerque
- Laboratório de Imunofarmacologia, Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil
- Laboratório de Imunofarmacologia, Departamento de Bioquímica, Universidade Federal do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Mauro Velho Castro-Faria
- Laboratório Integrado de Nefrologia, Department of Internal Medicine, Medical Sciences School, State University of Rio de Janeiro, Brazil
| | - Patricia Burth
- Laboratório de Enzimologia e Sinalização Celular, Department of Cellular and Molecular Biology, Federal Fluminense University, Niteroi, Brazil
| | - Mauricio Younes-Ibrahim
- Laboratório Integrado de Nefrologia, Department of Internal Medicine, Medical Sciences School, State University of Rio de Janeiro, Brazil
- Departamento de Medicina, Pontifícia Universidade Católica, Rio de Janeiro, Brazil
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11
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Talebi A, Emami F, Biranvand R, Moosavi Z, Ramtin K, Sadeghi S, Baghaei K, Lak Z, Nematbakhsh M. Protective Role of Angiotensin II Type 1 Receptor Blocker on Short Time Effect of Oleic Acid Induced Lung and Kidney Injury. Int J Prev Med 2021; 12:4. [PMID: 34084301 PMCID: PMC8106270 DOI: 10.4103/ijpvm.ijpvm_323_18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Accepted: 04/02/2019] [Indexed: 01/13/2023] Open
Abstract
Backgrounds: Acute respiratory distress syndrome (ARDS) causes high mortality rate in clinic, and the pathogenesis of this syndrome may interact with renin angiotensin system (RAS) components. The main objective of this study was to determine the protective role of AT1R antagonist (losartan) on oleic acid (OA) induced ARDS and kidney injury. Methods: The animal model of ARDS was performed by intravenous administration of 250 μl/kg oleic acid (OA). Male and female rats were subjected to received intravenously vehicle (saline, groups 1 and 4), OA (groups 2 and 5), or losartan (10 mg/kg) plus OA (groups 3 and 6), and six hour later, the measurements were performed. Results: Co-treatment of OA and losartan increased the serum levels of blood urea nitrogen significantly (P < 0.05) and creatinine insignificantly in both gender. However, the OA induced kidney damage was decreased by losartan significantly in male (P < 0.05) and insignificantly in female rats. In addition, co-treatment of OA and losartan decreased lung water content significantly in male rats (P < 0.05). Based on tissue staining, no significant difference in lung tissue damages were observed between the groups, however some exudate were observed in lung male rats treated with OA alone which were abolished by losartan. Conclusions: Losartan may protect the kidney and lung against OA induced tissue injury in male rats. This protective action is not certain in female rats.
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Affiliation(s)
- Ardeshir Talebi
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.,Department of Clinical Pathology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Fatemeh Emami
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Reza Biranvand
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.,Student Research Committee, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Zahra Moosavi
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.,Student Research Committee, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Kimia Ramtin
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.,Student Research Committee, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Soheil Sadeghi
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.,Student Research Committee, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Kimia Baghaei
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.,Student Research Committee, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Zahra Lak
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mehdi Nematbakhsh
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.,Department of Physiology, Isfahan University of Medical Sciences, Isfahan, Iran.,IsfahanMN Institute of Basic and Applied Sciences Research, Isfahan, Iran
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12
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Silva AR, Moraes BPT, Gonçalves-de-Albuquerque CF. Mediterranean Diet: Lipids, Inflammation, and Malaria Infection. Int J Mol Sci 2020; 21:ijms21124489. [PMID: 32599864 PMCID: PMC7350014 DOI: 10.3390/ijms21124489] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 02/05/2020] [Accepted: 02/15/2020] [Indexed: 12/11/2022] Open
Abstract
The Mediterranean diet (MedDiet) consists of consumption of vegetables and healthy oils and have beneficial effects on metabolic and inflammatory diseases. Our goal here is to discuss the role of fatty acid content in MedDiet, mostly omega-3, omega-6, and omega-9 on malaria. Malaria affects millions of people around the globe. The parasite Plasmodium causes the disease. The metabolic and inflammatory alterations in the severe forms have damaging consequences to the host. The lipid content in the MedDiet holds anti-inflammatory and pro-resolutive features in the host and have detrimental effects on the Plasmodium. The lipids from the diet impact the balance of pro- and anti-inflammation, thus, lipids intake from the diet is critical to parasite elimination and host tissue damage caused by an immune response. Herein, we go into the cellular and molecular mechanisms and targets of the MedDiet fatty acids in the host and the parasite, reviewing potential benefits of the MedDiet, on inflammation, malaria infection progression, and clinical outcome.
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Affiliation(s)
- Adriana R. Silva
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro 21040-900, Brazil;
- Programa de Neurociências da Universidade Federal Fluminense (UFF), Niterói 24020-141, Brazil
- Programa de Pós-Graduação em Biologia Celular e Molecular, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro 21040-900, Brazil
- Correspondence: or (A.R.S.); or (C.F.G.-d.-A.)
| | - Bianca P. T. Moraes
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro 21040-900, Brazil;
- Programa de Neurociências da Universidade Federal Fluminense (UFF), Niterói 24020-141, Brazil
- Laboratório de Imunofarmacologia, Universidade Federal do Estado do Rio de Janeiro (UNIRIO), Rio de Janeiro 20210-010, Brazil
| | - Cassiano F. Gonçalves-de-Albuquerque
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro 21040-900, Brazil;
- Programa de Neurociências da Universidade Federal Fluminense (UFF), Niterói 24020-141, Brazil
- Laboratório de Imunofarmacologia, Universidade Federal do Estado do Rio de Janeiro (UNIRIO), Rio de Janeiro 20210-010, Brazil
- Programa de Pós-Graduação em Biologia Molecular e Celular, UNIRIO, Rio de Janeiro 20210-010, Brazil
- Correspondence: or (A.R.S.); or (C.F.G.-d.-A.)
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13
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Challenges and perspectives in porcine model of acute lung injury using oleic acid. Pulm Pharmacol Ther 2019; 59:101837. [PMID: 31491506 DOI: 10.1016/j.pupt.2019.101837] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 08/16/2019] [Accepted: 09/02/2019] [Indexed: 11/23/2022]
Abstract
The oleic acid (OA) models of lung injury try to simulate the findings of human Acute Respiratory Distress Syndrome (ARDS). However, these models are difficult to replicate because they vary in terms of animals species, OA doses, time for establishment of lung injury, different observation periods and settings of mechanical ventilation. The objective of this study was to evaluate a protocol of administration of OA in lung injury model, challenges in its development and its effects on respiratory mechanics, hemodynamic changes, histology, gas exchange and mortality. We then submitted ten Large White pigs to acute lung injury through intravenous infusion of acid oleic in the pulmonary artery. The mortality of the model was 50%, due to an intense hemodynamic instability during OA administration, even with early use of vasoactive drugs. Three animals required additional doses of OA to achieve criteria for acute lung injury. Histology showed findings consistent with acute lung injury. However, more pulmonary edema was observed in lower segments than in upper segments of both lungs (p = 0.01). IL-6 and IL-8 were significantly increased compared to normal lungs (p < 0.05), and IL-6 showed higher levels in upper segments compared to lower segments (p = 0.03). Positive cells for Caspase 3 were present in all samples, localized mainly in respiratory epithelial cells and macrophages. In conclusion, this model shows histological findings of acute lung injury and inflammatory response similar to those of clinical ARDS, it presents high mortality, inconsistent reproducibility and hardly controlled hemodynamic instability.
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14
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Serum albumin saturation test based on non-esterified fatty acids imbalance for clinical employment. Clin Chim Acta 2019; 495:422-428. [PMID: 31082361 DOI: 10.1016/j.cca.2019.05.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 04/15/2019] [Accepted: 05/04/2019] [Indexed: 01/13/2023]
Abstract
Fatty acids are fundamental as energy and structural source to the human cells. They are not usually found free in human circulation. Alteration in fatty acids metabolism is linked to diseases such as diabetes, preeclampsia, heart disease, and some infectious diseases. Increased levels of non-esterified fatty acids (NEFA) may cause cell dysfunction and lipotoxicity. Since physiologically fatty acids are transported bound to albumin, we propose here a simple and cheap test that consists of albumin isoelectric focusing determination to measure the potential systemic NEFA cytotoxicity. For validation of this method, albumin isoelectric focusing in 51 serum samples from 40 critically ill patients and 11 controls was compared with NEFA/albumin ratios measured by HPLC. We called this approach an albumin saturation test. This test may indicate to physicians the potential NEFA lipotoxicity guiding them throughout better patient management. The albumin saturation test can point out serum albumin-NEFA saturation through a cheap assay that could be performed by any care facility.
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15
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Chen H, Ding Y, Chen W, Feng Y, Shi G. Glibenclamide alleviates inflammation in oleic acid model of acute lung injury through NLRP3 inflammasome signaling pathway. DRUG DESIGN DEVELOPMENT AND THERAPY 2019; 13:1545-1554. [PMID: 31123394 PMCID: PMC6511253 DOI: 10.2147/dddt.s196040] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 04/02/2019] [Indexed: 12/31/2022]
Abstract
Background: Pulmonary fat embolism (PFE) is one of the important causes of acute lung injury (ALI), but its pathogenesis is unclear. In recent years, it has been found that the NLRP3 inflammasome is closely related to inflammatory response. However, there are no reports about the involvement of NLRP3 in PFE- associated ALI. Glibenclamide is a kind of hypoglycaemic drug with anti-inflammatory effect. It has been reported to have the anti-inflammatory effect related to inhibiting NLRP3. Objective: To determine whether NLRP3 inflammasome was involved in ALI induced by PFE or whether glibenclamide had therapeutic effects on such lung injury, we designed this experiment. Materials and methods: The rat model of intravenous injection of oleic acid (OA) was used to simulate PFE. Rats were divided into three groups: control, OA and glibenclamide treatment group. Blood free fatty acid (FFA) concentration was determined by ACS-ACOD. Histopathological examinations were taken to assess the severity of lung injury. The expression of NLRP3 pathway and its downstream products were analyzed by IHC, WB, qPCR and ELISA. Results: Four hours after intravenous OA injection, the typical pathological manifestations of ALI accompanied by elevated levels of plasma FFAs were found. The activity of NLRP3 inflammasomes increased in OA group, too. Pretreatment with glibenclamide partly inhibited the increase in NLRP3, caspase-1 and IL-1β expression induced by OA, simultaneously attenuated the lung injury. But it has little effect on the expression of Toll-like receptor 4 (TLR4) expression in this experiment. Conclusion: NLRP3 inflammasome, one of the main components of innate immune response, involved in ALI induced by OA. Glibenclamide can alleviate this kind of ALI by inhibiting rather the NLRP3/caspase-1/IL-1β signaling pathway than the levels of FFAs or TLR4 pathway.
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Affiliation(s)
- Hong Chen
- Department of Respiration and Critical Care Disease, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 20025, People's Republic of China.,Institute of Respiratory Diseases, School of Medicine, Shanghai Jiaotong University, Shanghai 20025, People's Republic of China
| | - Yongjie Ding
- Department of Respiration and Critical Care Disease, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 20025, People's Republic of China.,Institute of Respiratory Diseases, School of Medicine, Shanghai Jiaotong University, Shanghai 20025, People's Republic of China
| | - Wei Chen
- Department of Respiration and Critical Care Disease, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 20025, People's Republic of China.,Institute of Respiratory Diseases, School of Medicine, Shanghai Jiaotong University, Shanghai 20025, People's Republic of China
| | - Yun Feng
- Department of Respiration and Critical Care Disease, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 20025, People's Republic of China.,Institute of Respiratory Diseases, School of Medicine, Shanghai Jiaotong University, Shanghai 20025, People's Republic of China
| | - Guochao Shi
- Department of Respiration and Critical Care Disease, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 20025, People's Republic of China.,Institute of Respiratory Diseases, School of Medicine, Shanghai Jiaotong University, Shanghai 20025, People's Republic of China
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16
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Omega-9 Oleic Acid, the Main Compound of Olive Oil, Mitigates Inflammation during Experimental Sepsis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:6053492. [PMID: 30538802 PMCID: PMC6260523 DOI: 10.1155/2018/6053492] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 09/26/2018] [Accepted: 10/10/2018] [Indexed: 12/21/2022]
Abstract
The Mediterranean diet, rich in olive oil, is beneficial, reducing the risk of cardiovascular diseases and cancer. Olive oil is mostly composed of the monounsaturated fatty acid omega-9. We showed omega-9 protects septic mice modulating lipid metabolism. Sepsis is initiated by the host response to infection with organ damage, increased plasma free fatty acids, high levels of cortisol, massive cytokine production, leukocyte activation, and endothelial dysfunction. We aimed to analyze the effect of omega-9 supplementation on corticosteroid unbalance, inflammation, bacterial elimination, and peroxisome proliferator-activated receptor (PPAR) gamma expression, an omega-9 receptor and inflammatory modulator. We treated mice for 14 days with omega-9 and induced sepsis by cecal ligation and puncture (CLP). We measured systemic corticosterone levels, cytokine production, leukocyte and bacterial counts in the peritoneum, and the expression of PPAR gamma in both liver and adipose tissues during experimental sepsis. We further studied omega-9 effects on leukocyte rolling in mouse cremaster muscle-inflamed postcapillary venules and in the cerebral microcirculation of septic mice. Here, we demonstrate that omega-9 treatment is associated with increased levels of the anti-inflammatory cytokine IL-10 and decreased levels of the proinflammatory cytokines TNF-α and IL-1β in peritoneal lavage fluid of mice with sepsis. Omega-9 treatment also decreased systemic corticosterone levels. Neutrophil migration from circulation to the peritoneal cavity and leukocyte rolling on the endothelium were decreased by omega-9 treatment. Omega-9 also decreased bacterial load in the peritoneal lavage and restored liver and adipose tissue PPAR gamma expression in septic animals. Our data suggest a beneficial anti-inflammatory role of omega-9 in sepsis, mitigating leukocyte rolling and leukocyte influx, balancing cytokine production, and controlling bacterial growth possibly through a PPAR gamma expression-dependent mechanism. The significant reduction of inflammation detected after omega-9 enteral injection can further contribute to the already known beneficial properties facilitated by unsaturated fatty acid-enriched diets.
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17
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Kamuf J, Garcia-Bardon A, Ziebart A, Thomas R, Rümmler R, Möllmann C, Hartmann EK. Oleic Acid-Injection in Pigs As a Model for Acute Respiratory Distress Syndrome. J Vis Exp 2018:57783. [PMID: 30417861 PMCID: PMC6235613 DOI: 10.3791/57783] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The acute respiratory distress syndrome is a relevant intensive care disease with an incidence ranging between 2.2% and 19% of intensive care unit patients. Despite treatment advances over the last decades, ARDS patients still suffer mortality rates between 35 and 40%. There is still a need for further research to improve the outcome of patients suffering from ARDS. One problem is that no single animal model can mimic the complex pathomechanism of the acute respiratory distress syndrome, but several models exist to study different parts of it. Oleic acid injection (OAI)-induced lung injury is a well-established model for studying ventilation strategies, lung mechanics and ventilation/perfusion distribution in animals. OAI leads to severely impaired gas exchange, deterioration of lung mechanics and disruption of the alveolo-capillary barrier. The disadvantage of this model is the controversial mechanistic relevance of this model and the necessity for central venous access, which is challenging especially in smaller animal models. In summary, OAI-induced lung injury leads to reproducible results in small and large animals and hence represents a well-suited model for studying ARDS. Nevertheless, further research is necessary to find a model that mimics all parts of ARDS and lacks the problems associated with the different models existing today.
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Affiliation(s)
- Jens Kamuf
- Department of Anesthesiology, University Medical Center of the Johannes Gutenberg-University;
| | - Andreas Garcia-Bardon
- Department of Anesthesiology, University Medical Center of the Johannes Gutenberg-University
| | - Alexander Ziebart
- Department of Anesthesiology, University Medical Center of the Johannes Gutenberg-University
| | - Rainer Thomas
- Department of Anesthesiology, University Medical Center of the Johannes Gutenberg-University
| | - Robert Rümmler
- Department of Anesthesiology, University Medical Center of the Johannes Gutenberg-University
| | - Christian Möllmann
- Department of Anesthesiology, University Medical Center of the Johannes Gutenberg-University
| | - Erik K Hartmann
- Department of Anesthesiology, University Medical Center of the Johannes Gutenberg-University
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18
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Yan X, Li Y, Choi YH, Wang C, Piao Y, Ye J, Jiang J, Li L, Xu H, Cui Q, Yan G, Jin M. Protective Effect and Mechanism of Alprostadil in Acute Respiratory Distress Syndrome Induced by Oleic Acid in Rats. Med Sci Monit 2018; 24:7186-7198. [PMID: 30296789 PMCID: PMC6190919 DOI: 10.12659/msm.909678] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND This study investigated the role and mechanism of alprostadil in acute respiratory distress syndrome (ARDS) induced by oleic acid (OA) in rats. MATERIAL AND METHODS Sprague-Dawley rats were randomly divided into control, OA model, and OA + Alprostadil (2.5, 5, and 10 μg/kg, respectively) groups. The ARDS model was induced by femoral vein injection of OA, and alprostadil was administrated immediately. Lung injury was evaluated by lung wet-dry weight ratio (W/D) and histological analyses. Expressions of ACE, inflammatory mediators, apoptotic-related proteins, and proteins in the MAPKs and NF-κB signaling pathways were determined by Western blot or immunohistochemical staining. RESULTS Compared with the control group, the OA model group had significantly increased W/D, lung injury score, and collagen deposition at 3 h after OA injection. However, alprostadil (10 μg/kg) treatment significantly reduced OA-induced elevation of these indicators. Additionally, OA-induced expression of TNF-α and IL-1β were suppressed by alprostadil. The OA-induced activation of nuclear factor (NF) κB p65 was also reduced by alprostadil. Furthermore, we found that Alprostadil had an inhibitory effect on the phosphorylation of JNK, ERK1/2, and p38 MAPKs. Alprostadil inhibited Bax but increased Bcl-2, indicating a suppressive role in apoptosis. Remarkably increased expression of ACE in the OA model group was observed, which was decreased by alprostadil. CONCLUSIONS Alprostadil has a protective effect on ARDS induced by OA in rats, possibly through inhibiting apoptosis, suppressing the activation of MAPKs and NF-κB signaling pathways, and decreasing ACE protein expression. Therefore, the use of alprostadil in clinical ARDS treatment is promising.
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Affiliation(s)
- Xiujuan Yan
- Intensive Care Unit, Yanbian University Hospital, Yanji, Jilin, China (mainland)
| | - Yingxiu Li
- College of Marine Science, Shandong University (Weihai), Weihai, Shandong, China (mainland)
| | - Yun Ho Choi
- Department of Anatomy, Medical School, Institute for Medical Sciences, Chonbuk National University, Jeonju, Jeonbuk, South Korea
| | - Chongyang Wang
- Department of Anatomy, Histology, and Embryology, Yanbian University Medical College, Yanji, Jilin, China (mainland)
| | - Yihua Piao
- Intensive Care Unit, Yanbian University Hospital, Yanji, Jilin, China (mainland)
| | - Jing Ye
- Department of Anatomy, Histology, and Embryology, Yanbian University Medical College, Yanji, Jilin, China (mainland)
| | - Jingzhi Jiang
- Department of Anatomy, Histology, and Embryology, Yanbian University Medical College, Yanji, Jilin, China (mainland)
| | - Liangchang Li
- Department of Anatomy, Medical School, Institute for Medical Sciences, Chonbuk National University, Jeonju, Jeonbuk, South Korea
| | - Huixian Xu
- Intensive Care Unit, Yanbian University Hospital, Yanji, Jilin, China (mainland)
| | - Qingsong Cui
- Intensive Care Unit, Yanbian University Hospital, Yanji, Jilin, China (mainland)
| | - Guanghai Yan
- Department of Anatomy, Histology, and Embryology, Yanbian University Medical College, Yanji, Jilin, China (mainland)
| | - Minggen Jin
- Intensive Care Unit, Yanbian University Hospital, Yanji, Jilin, China (mainland)
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19
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Zheng W, Wu X, Goudarzi M, Shi J, Song W, Li C, Liu J, Chen H, Zhang X, Zeng X, Li HH. Metabolomic alterations associated with Behçet's disease. Arthritis Res Ther 2018; 20:214. [PMID: 30249301 PMCID: PMC6154820 DOI: 10.1186/s13075-018-1712-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 09/04/2018] [Indexed: 01/07/2023] Open
Abstract
Background The diagnosis of Behçet’s disease (BD) remains challenging due to the lack of diagnostic biomarkers. This study aims to identify potential serum metabolites associated with BD and its disease activity. Methods Medical records and serum samples of 24 pretreated BD patients, 12 post-treated BD patients, and age-matched healthy controls (HC) were collected for metabolomics and lipidomics profiling using UPLC-QTOF-MS and UPLC-QTOF-MSE approaches. Additionally, serum samples from an independent cohort of BD patients, disease controls including rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), Takayasu’s arteritis (TA), Crohn’s disease (CD) patients, and HC were collected for further validation of two potential biomarkers using UPLC-QTOFMS analysis. Results Unsupervised principal component analysis (PCA) showed a clear separation of metabolomics profiles of BD patients from HC. Statistical analysis of the data revealed differential metabolites between BD patients and HC. The serum levels of some phosphatidylcholines (PCs) were found to be significantly lower in BD patients, while the levels of several polyunsaturated fatty acids (PUFAs) were increased markedly in the BD group compared with HC. Furthermore, the serum level of two omega-6 PUFAs, linoleic acid (LA) and arachidonic acid (AA), were dramatically decreased in patients with remission. A validation cohort confirmed that the serum LA and AA levels in BD patients were significantly higher than those in HC and patients with RA, SLE, TA, and CD. In addition, receiver operating characteristic (ROC) analysis indicated good sensitivity and specificity. Conclusions The serum metabolomics profiles in BD patients are altered. Serum LA and AA are promising diagnostic biomarkers for BD. Electronic supplementary material The online version of this article (10.1186/s13075-018-1712-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Wenjie Zheng
- Department of Rheumatology and Clinical Immunology, Key Laboratory of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Ministry of Education, Beijing, China.
| | - Xiuhua Wu
- Department of Rheumatology and Clinical Immunology, Key Laboratory of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Ministry of Education, Beijing, China.,Department of Rheumatology, General Hospital of Tianjin Medical University, Tianjin, China
| | - Maryam Goudarzi
- Georgetown University Medical Center, Georgetown University, Washington, DC, USA
| | - Jing Shi
- Department of Rheumatology and Clinical Immunology, Key Laboratory of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Ministry of Education, Beijing, China
| | - Wei Song
- Central Research Laboratory, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Ministry of Education, Beijing, China
| | - Chaoran Li
- Department of Rheumatology and Clinical Immunology, Key Laboratory of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Ministry of Education, Beijing, China
| | - Jinjing Liu
- Department of Rheumatology and Clinical Immunology, Key Laboratory of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Ministry of Education, Beijing, China
| | - Hua Chen
- Department of Rheumatology and Clinical Immunology, Key Laboratory of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Ministry of Education, Beijing, China
| | - Xuan Zhang
- Department of Rheumatology and Clinical Immunology, Key Laboratory of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Ministry of Education, Beijing, China
| | - Xiaofeng Zeng
- Department of Rheumatology and Clinical Immunology, Key Laboratory of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Ministry of Education, Beijing, China
| | - Heng-Hong Li
- Georgetown University Medical Center, Georgetown University, Washington, DC, USA.
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Kamuf J, Garcia-Bardon A, Ziebart A, Thomas R, Folkert K, Frauenknecht K, Thal SC, Hartmann EK. Lung injury does not aggravate mechanical ventilation-induced early cerebral inflammation or apoptosis in an animal model. PLoS One 2018; 13:e0202131. [PMID: 30092082 PMCID: PMC6084980 DOI: 10.1371/journal.pone.0202131] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Accepted: 07/02/2018] [Indexed: 12/11/2022] Open
Abstract
Introduction The acute respiratory distress syndrome is not only associated with a high mortality, but also goes along with cognitive impairment in survivors. The cause for this cognitive impairment is still not clear. One possible mechanism could be cerebral inflammation as result of a “lung-brain-crosstalk”. Even mechanical ventilation itself can induce cerebral inflammation. We hypothesized, that an acute lung injury aggravates the cerebral inflammation induced by mechanical ventilation itself and leads to neuronal damage. Methods After approval of the institutional and state animal care committee 20 pigs were randomized to one of three groups: lung injury by central venous injection of oleic acid (n = 8), lung injury by bronchoalveolar lavage in combination with one hour of injurious ventilation (n = 8) or control (n = 6). Brain tissue of four native animals from a different study served as native group. For six hours all animals were ventilated with a tidal volume of 7 ml kg-1 and a scheme for positive end-expiratory pressure and inspired oxygen fraction, which was adapted from the ARDS network tables. Afterwards the animals were killed and the brains were harvested for histological (number of neurons and microglia) and molecular biologic (TNFalpha, IL-1beta, and IL-6) examinations. Results There was no difference in the number of neurons or microglia cells between the groups. TNFalpha was significantly higher in all groups compared to native (p < 0.05), IL-6 was only increased in the lavage group compared to native (p < 0.05), IL-1beta showed no difference between the groups. Discussion With our data we can confirm earlier results, that mechanical ventilation itself seems to trigger cerebral inflammation. This is not aggravated by acute lung injury, at least not within the first 6 hours after onset. Nevertheless, it seems too early to dismiss the idea of lung-injury induced cerebral inflammation, as 6 hours might be just not enough time to see any profound effect.
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Affiliation(s)
- Jens Kamuf
- Department of Anesthesiology, University Medical Centre, Johannes Gutenberg-University Mainz, Mainz, Germany
- * E-mail:
| | - Andreas Garcia-Bardon
- Department of Anesthesiology, University Medical Centre, Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Alexander Ziebart
- Department of Anesthesiology, University Medical Centre, Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Rainer Thomas
- Department of Anesthesiology, University Medical Centre, Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Konstantin Folkert
- Department of Anesthesiology, University Medical Centre, Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Katrin Frauenknecht
- Institute of Neuropathology, University Medical Centre, Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Serge C. Thal
- Department of Anesthesiology, University Medical Centre, Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Erik K. Hartmann
- Department of Anesthesiology, University Medical Centre, Johannes Gutenberg-University Mainz, Mainz, Germany
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Wei Y, Wang Y. Celastrol attenuates impairments associated with lipopolysaccharide-induced acute respiratory distress syndrome (ARDS) in rats. J Immunotoxicol 2018; 14:228-234. [PMID: 29179596 DOI: 10.1080/1547691x.2017.1394933] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Celastrol, a constituent from a traditional Chinese medicinal herb belonging to the family Celastraceae, has been shown to impart anti-inflammatory properties, in part, by inhibiting NF-κB activity and related induction of pro-inflammatory cytokine formation/release. The present study investigated the effects of celastrol in an animal model of acute respiratory distress syndrome (ARDS) induced by intratracheal administration of lipopolysaccharides (LPSs). Celastrol pre-treatment groups received celastrol by intraperitoneal injection on seven consecutive days before LPS treatment. In rats evaluated 24 h after LPS administration, oxygenation indices and lung injury were measured, as were levels of inflammatory cells and cytokines in isolated bronchoalveolar lavage fluid (BALF). Lung tissue expression of proteins involved in NF-κB and ERK/MAPK pathways were measured by Western blot analyses. Celastrol pre-treatments appeared to attenuate LPS-induced lung injury and inflammatory responses in the rats, including decreases in inducible aggregation\infiltration of inflammatory cells and production/release of pro-inflammatory cytokines into the lung airways. Celastrol appeared to also inhibit NF-κB activation, but had no effect on ERK/MAPK pathways in the LPS-induced ARDS. The results here thus indicated that celastrol pre-treatment could impart protective effects against LPS-induced ARDS, and that these effects may be occurring through an inhibition of induction of NF-κB signaling pathways.
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Affiliation(s)
- Yongjun Wei
- a Tianjin First Center Hospital , Tianjin , China
| | - Yu Wang
- a Tianjin First Center Hospital , Tianjin , China
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22
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El Ayed M, Kadri S, Smine S, Elkahoui S, Limam F, Aouani E. Protective effects of grape seed and skin extract against high-fat-diet-induced lipotoxicity in rat lung. Lipids Health Dis 2017; 16:174. [PMID: 28903761 PMCID: PMC5598067 DOI: 10.1186/s12944-017-0561-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Accepted: 09/04/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Obesity is a public health problem characterized by increased fat accumulation in different tissues. Obesity is directly linked to breathing problems and medical complications with lung, including obstructive sleep apnea syndrome, obesity hypoventilation syndrome, chronic obstructive pulmonary disease, asthma….In the present work, we aimed to investigate the effect of high fat diet (HFD) on lung lipotoxicity, oxidative stress, fatty acid composition and proportions in lung and implication in asthma development. The likely protection provided by grape seed extract (GSSE) was also investigated. METHODS In order to assess HFD effect on lung and GSSE protection we used a rat model. We analyzed the lipid plasma profile, lung peroxidation and antioxidant activities (SOD, CAT and POD). We also analyzed transition metals (Ca2+, Mg2+, Zn2+ and iron) and lung free fatty acids using gas chromatography coupled to mass spectrometry (GC-MS). RESULTS HFD induced lipid profile imbalance increasing cholesterol and VLDL-C. HFD also induced an oxidative stress assessed by elevated MDA level and the drop of antioxidant activities such as SOD, CAT and POD. Moreover, HFD induced mineral disturbances by decreasing magnesium level and increasing Calcium and iron levels. HFD induced also disturbances in lung fatty acid composition by increasing oleic, stearic and arachidonic acids. Interestingly, GSSE alleviated all these deleterious effects of HFD treatment. CONCLUSION As a whole, GSSE had a significant preventive effect against HFD-induced obesity, and hence may be used as an anti-obesity agent, and a benefic agent with potential applications against damages in lung tissue.
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Affiliation(s)
- Mohamed El Ayed
- Bioactive Substances Laboratory, Biotechnology Centre, Technopolis Borj-Cedria, BP-901, 2050, Hammam-Lif, Tunisia.
| | - Safwen Kadri
- Bioactive Substances Laboratory, Biotechnology Centre, Technopolis Borj-Cedria, BP-901, 2050, Hammam-Lif, Tunisia
| | - Selima Smine
- Bioactive Substances Laboratory, Biotechnology Centre, Technopolis Borj-Cedria, BP-901, 2050, Hammam-Lif, Tunisia.,Proteomic Platform PISSARO, Institut de Recherche et d'Innovation Biomédicale (IRIB), University of Rouen, 76821, Mont Saint Aignan, Cedex, France
| | - Salem Elkahoui
- Bioactive Substances Laboratory, Biotechnology Centre, Technopolis Borj-Cedria, BP-901, 2050, Hammam-Lif, Tunisia
| | - Ferid Limam
- Bioactive Substances Laboratory, Biotechnology Centre, Technopolis Borj-Cedria, BP-901, 2050, Hammam-Lif, Tunisia
| | - Ezzedine Aouani
- Bioactive Substances Laboratory, Biotechnology Centre, Technopolis Borj-Cedria, BP-901, 2050, Hammam-Lif, Tunisia
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Haj Ahmed S, Kharroubi W, Zarrouk A, Brahmi F, Nury T, Lizard G, Hammami M. Protective effects of bezafibrate against elaidic acid-induced accumulation of lipid droplets in monocytic cells. Curr Res Transl Med 2016; 65:20-30. [PMID: 28340693 DOI: 10.1016/j.retram.2016.08.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 07/24/2016] [Accepted: 08/05/2016] [Indexed: 01/15/2023]
Abstract
Some factors related to diet, such as trans fatty acids (TFA), are known to be involved in the progression of atherosclerosis in humans. Thus, the aim of our study was (i) to evaluate the effects of three dietary free fatty acids (FFA) (elaidic (EA), oleic (OA) and palmitic acid (PA)) on U937 human monocytes, and (ii) to study the eventual benefits of bezafibrate (BZF), a pan-agonist for PPAR isoforms (α, γ and δ) in U937 cells treated with FFA. Morphologic and functional changes were investigated by microscopic and flow cytometric methods. Cellular lipid content, lipid droplets and FA composition were identified and studied. All analyses were also realized in association with or without BZF. Contrary to OA and PA, EA slightly induced both propidium iodide-positive cells and mitochondrial depolarization. In addition, in contrast to OA and PA, EA induced only a slight increase in superoxide anion production. However, EA and OA promoted cytoplasmic lipid droplets accumulation. Only EA and OA significantly increased CD36 expression. It is noteworthy that BZF had a more or less pronounced protective effect against EA-, OA- and PA-induced side effects: BZF attenuated the impaired cell viability and inflammatory response, decreased superoxide anion production and prevented the accumulation of neutral and polar lipids. The effects were less pronounced with OA and PA than with EA. Altogether, our data revealed a benefit of BZF on the side effects induced especially with EA. It may thus be of interest in preventing the early stages of atherosclerotic plaque formation.
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Affiliation(s)
- S Haj Ahmed
- Laboratoire 'nutrition, aliments fonctionnels et santé vasculaire', UR12ES05 faculté de médecine, université de Monastir, Monastir, Tunisia.
| | - W Kharroubi
- Laboratoire 'nutrition, aliments fonctionnels et santé vasculaire', UR12ES05 faculté de médecine, université de Monastir, Monastir, Tunisia
| | - A Zarrouk
- Laboratoire 'nutrition, aliments fonctionnels et santé vasculaire', UR12ES05 faculté de médecine, université de Monastir, Monastir, Tunisia; Équipe 'biochimie du peroxysome, inflammation et métabolisme lipidique' EA7270/université de Bourgogne Franche Comté/Inserm, 21000 Dijon, France
| | - F Brahmi
- Laboratoire de biophysique, biochimie, biomathématique et scientométrie (3BS), département des sciences alimentaires, faculté des Sciences de la Nature et de la Vie, université Abderrahmane Mira, Béjaia, Algeria
| | - T Nury
- Équipe 'biochimie du peroxysome, inflammation et métabolisme lipidique' EA7270/université de Bourgogne Franche Comté/Inserm, 21000 Dijon, France
| | - G Lizard
- Équipe 'biochimie du peroxysome, inflammation et métabolisme lipidique' EA7270/université de Bourgogne Franche Comté/Inserm, 21000 Dijon, France
| | - M Hammami
- Laboratoire 'nutrition, aliments fonctionnels et santé vasculaire', UR12ES05 faculté de médecine, université de Monastir, Monastir, Tunisia
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Nehra S, Bhardwaj V, Bansal A, Saraswat D. Nanocurcumin accords protection against acute hypobaric hypoxia induced lung injury in rats. J Physiol Biochem 2016; 72:763-779. [PMID: 27534650 DOI: 10.1007/s13105-016-0515-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Accepted: 08/08/2016] [Indexed: 10/21/2022]
Abstract
Decline in oxygen availability experienced under hypobaric hypoxia (HH) mediates imbalance in lung fluid clearance and is a causative agent of acute lung injury. Here, we investigate the pathological events behind acute HH mediated lung injury and assess the therapeutic efficacy of nanocurcumin in its amelioration. We assess the protective efficacy of nanotized curcumin (nanocurcumin) in ameliorating HH induced lung injury and compare to curcumin. Rats exposed to acute HH (6, 12, 24, 48 and 72 h) were subjected to histopathology, blood-gas analysis and clinical biochemistry, cytokine response and redox damage. HH induced lung injury was analysed using markers of lung injury due to pulmonary vasoconstriction (ET-1/2/3 and endothelin receptors A and B) and trans-vascular fluid balance mediator (Na+/K+ ATPase). The protective efficacy of nanocurcumin was analysed by examination of Akt/Erk signalling cascade by western blot. HH induced lung injury was associated with discrete changes in blood analytes, differential circulatory cytokine response and severe pulmonary redox damages. Up-regulation of ET-1/2/3 and its receptors along with down-regulation of Na+/K+ ATPase confirmed defective pulmonary fluid clearance which promoted edema formation. Nanocurcumin treatment prevented lung edema formation and restored expression levels of ET-1/2/3 and its receptors while restoring the blood analytes, circulatory cytokines and pulmonary redox status better than curcumin. Modulation in Akt/Erk signalling pathway in rat lungs under HH confirmed the protective efficacy of nanocurcumin.
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Affiliation(s)
- Sarita Nehra
- Experimental Biology Division, Department of Experimental Biology, Defence Institute of Physiology and Allied Science, Defence Research and Development Organization, Lucknow Road, Timarpur, New Delhi-54, India
| | - Varun Bhardwaj
- Experimental Biology Division, Department of Experimental Biology, Defence Institute of Physiology and Allied Science, Defence Research and Development Organization, Lucknow Road, Timarpur, New Delhi-54, India
| | - Anju Bansal
- Experimental Biology Division, Department of Experimental Biology, Defence Institute of Physiology and Allied Science, Defence Research and Development Organization, Lucknow Road, Timarpur, New Delhi-54, India
| | - Deepika Saraswat
- Experimental Biology Division, Department of Experimental Biology, Defence Institute of Physiology and Allied Science, Defence Research and Development Organization, Lucknow Road, Timarpur, New Delhi-54, India.
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25
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Fatty acids as modulators of neutrophil recruitment, function and survival. Eur J Pharmacol 2016; 785:50-58. [DOI: 10.1016/j.ejphar.2015.03.098] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Revised: 03/05/2015] [Accepted: 03/16/2015] [Indexed: 12/26/2022]
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Acute Respiratory Distress Syndrome: Role of Oleic Acid-Triggered Lung Injury and Inflammation. Mediators Inflamm 2015; 2015:260465. [PMID: 26640323 PMCID: PMC4660020 DOI: 10.1155/2015/260465] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 10/25/2015] [Indexed: 01/22/2023] Open
Abstract
Lung injury especially acute respiratory distress syndrome (ARDS) can be triggered by diverse stimuli, including fatty acids and microbes. ARDS affects thousands of people worldwide each year, presenting high mortality rate and having an economic impact. One of the hallmarks of lung injury is edema formation with alveoli flooding. Animal models are used to study lung injury. Oleic acid-induced lung injury is a widely used model resembling the human disease. The oleic acid has been linked to metabolic and inflammatory diseases; here we focus on lung injury. Firstly, we briefly discuss ARDS and secondly we address the mechanisms by which oleic acid triggers lung injury and inflammation.
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Boshuizen M, Leopold JH, Zakharkina T, Knobel HH, Weda H, Nijsen TME, Vink TJ, Sterk PJ, Schultz MJ, Bos LDJ. Levels of cytokines in broncho-alveolar lavage fluid, but not in plasma, are associated with levels of markers of lipid peroxidation in breath of ventilated ICU patients. J Breath Res 2015; 9:036010. [DOI: 10.1088/1752-7155/9/3/036010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Kim KY, Lee HS, Seol GH. Eucalyptol suppresses matrix metalloproteinase-9 expression through an extracellular signal-regulated kinase-dependent nuclear factor-kappa B pathway to exert anti-inflammatory effects in an acute lung inflammation model. J Pharm Pharmacol 2015; 67:1066-74. [DOI: 10.1111/jphp.12407] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Accepted: 01/07/2015] [Indexed: 01/20/2023]
Abstract
Abstract
Objectives
The acute lung injury (ALI) model is characterised by a severe acute inflammatory response in the lungs that represents the pathogenesis of acute respiratory distress syndrome (ARDS). In this study, we sought to elucidate the anti-inflammatory mechanism of eucalyptol in relation to tissue remodelling in acute lung inflammation.
Methods
BALB/C mice were intraperitoneally injected with eucalyptol (100, 200 or 400 mg/kg) or dexamethasone (1 mg/kg) 1 h before intratracheal challenge with lipopolysaccharide (LPS; 1.5 mg/kg) and sacrificed after 4 h. The anti-inflammatory effects of eucalyptol were assessed by determining cell counts, measuring cytokine and nitric oxide production and performing Western blotting and histological analyses.
Key findings
Eucalyptol attenuated inflammation-associated increases in cell numbers, matrix metalloproteinase-9 (MMP-9) expression, production of cytokines (tumour necrosis factor-α and interleukin-6) and nitric oxide, and nuclear factor-kappa B (NF-κB) and phosphorylated extracellular signal-regulated kinase protein levels induced by LPS in bronchoalveolar lavage fluid from ALI mice. Furthermore, pretreatment with 400 mg/kg eucalyptol prevented LPS-induced histopathological changes. Collectively, these results indicate that eucalyptol acts through a mechanism involving decreased MMP-9 expression and an extracellular signal-regulated kinase-dependent NF-κB pathway to exert anti-inflammatory actions in acute lung inflammation.
Conclusions
Thus, eucalyptol may be a potentially important agent in the treatment of pulmonary inflammation.
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Affiliation(s)
- Ka Young Kim
- Department of Basic Nursing Science, School of Nursing, Korea University, Seoul, Republic of Korea
| | - Hui Su Lee
- Department of Basic Nursing Science, School of Nursing, Korea University, Seoul, Republic of Korea
| | - Geun Hee Seol
- Department of Basic Nursing Science, School of Nursing, Korea University, Seoul, Republic of Korea
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Gonçalves-de-Albuquerque CF, Burth P, Silva AR, de Moraes IMM, de Oliveira FMJ, Santelli RE, Freire AS, Younes-Ibrahim M, de Castro-Faria-Neto HC, de Castro-Faria MV. Na/K-ATPase assay in the intact mice lung subjected to perfusion. BMC Res Notes 2014; 7:798. [PMID: 25399325 PMCID: PMC4242599 DOI: 10.1186/1756-0500-7-798] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Accepted: 10/24/2014] [Indexed: 02/26/2023] Open
Abstract
BACKGROUND Among the characteristics of acute respiratory distress syndrome (ARDS) is edema formation and its resolution depends on pneumocyte Na/K-ATPase activity. Increased concentration of oleic acid (OA) in plasma induces lung injury by targeting Na/K-ATPase and, thus, interfering in sodium transport. FINDINGS Presently, we adapted a radioactivity-free assay to detect Na/K-ATPase activity in perfused lung mice, comparing the inhibitory effect of ouabain and OA. We managed to perfuse only the lung, avoiding the systemic loss of rubidium. Rb+ incorporation into lung was measured by inductively coupled plasma optical emission spectrometry (ICP OES) technique, after lung tissue digestion. Na/K-ATPase activity was the difference between Rb+ incorporation with or without ouabain. Lung Na/K-ATPase was completely inhibited by perfusion with ouabain. However, OA caused a partial inhibition. CONCLUSIONS In the present work the amount of incorporated Rb+ was greater than seen in our previous report, showing that the present technique is trustworthy. This new proposed assay may allow researchers to study the importance of Na/K-ATPase activity in lung pathophysiology.
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Gonçalves-de-Albuquerque CF, Burth P, Silva AR, de Moraes IMM, Oliveira FMDJ, Santelli RE, Freire AS, de Lima GS, da Silva ED, da Silva CI, Morandi V, Bozza PT, Younes-Ibrahim M, de Castro Faria Neto HC, de Castro Faria MV. Murine lung injury caused by Leptospira interrogans glycolipoprotein, a specific Na/K-ATPase inhibitor. Respir Res 2014; 15:93. [PMID: 25265888 PMCID: PMC4151191 DOI: 10.1186/s12931-014-0093-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Accepted: 07/31/2014] [Indexed: 12/15/2022] Open
Abstract
Background Leptospiral glycolipoprotein (GLP) is a potent and specific Na/K-ATPase inhibitor. Severe pulmonary form of leptospirosis is characterized by edema, inflammation and intra-alveolar hemorrhage having a dismal prognosis. Resolution of edema and inflammation determines the outcome of lung injury. Na/K-ATPase activity is responsible for edema clearance. This enzyme works as a cell receptor that triggers activation of mitogen-activated protein kinase (MAPK) intracellular signaling pathway. Therefore, injection of GLP into lungs induces injury by triggering inflammation. Methods We injected GLP and ouabain, into mice lungs and compared their effects. Bronchoalveolar lavage fluid (BALF) was collected for cell and lipid body counting and measurement of protein and lipid mediators (PGE2 and LTB4). The levels of the IL-6, TNFα, IL-1B and MIP-1α were also quantified. Lung images illustrate the injury and whole-body plethysmography was performed to assay lung function. We used Toll-like receptor 4 (TLR4) knockout mice to evaluate leptospiral GLP-induced lung injury. Na/K-ATPase activity was determined in lung cells by nonradioactive rubidium incorporation. We analyzed MAPK p38 activation in lung and in epithelial and endothelial cells. Results Leptospiral GLP and ouabain induced lung edema, cell migration and activation, production of lipid mediators and cytokines and hemorrhage. They induced lung function alterations and inhibited rubidium incorporation. Using TLR4 knockout mice, we showed that the GLP action was not dependent on TLR4 activation. GLP activated of p38 and enhanced cytokine production in cell cultures which was reversed by a selective p38 inhibitor. Conclusions GLP and ouabain induced lung injury, as evidenced by increased lung inflammation and hemorrhage. To our knowledge, this is the first report showing GLP induces lung injury. GLP and ouabain are Na/K-ATPase targets, triggering intracellular signaling pathways. We showed p38 activation by GLP-induced lung injury, which was may be linked to Na/K-ATPase inhibition. Lung inflammation induced by GLP was not dependent on TLR4 activation.
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Lee SM, Choi H, Yang G, Park KC, Jeong S, Hong S. microRNAs mediate oleic acid-induced acute lung injury in rats using an alternative injury mechanism. Mol Med Rep 2014; 10:292-300. [PMID: 24736893 DOI: 10.3892/mmr.2014.2155] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Accepted: 03/17/2014] [Indexed: 11/06/2022] Open
Abstract
Intravenous (IV) infusion of oleic acid (OA) distributes OA microemboli in the pulmonary capillaries, which results in severe vascular congestion, hemorrhage vascular congestion, interstitial edema, intravascular coagulation and bleeding. The immune response to acute lung injury (ALI) is known to be associated with rapid and widespread changes in microRNA (miRNA) expression in the lung. The present study of a model of rat lung injury aimed to investigate how the lung miRNA profile changes to mediate ALI. For the induction of ALI, OA (200 µl/kg) suspended in 20% ethyl alcohol was injected through the tail vein for 20 min. Lung tissue samples were acquired at 3, 6 and 24 h, and miRNA microarray and quantitative polymerase chain reaction were performed using these samples. The activation of phosphatase and tensin homolog (PTEN), protein kinase B (Akt), extracellular signal-regulated kinases (ERK) and c-Jun N-terminal kinases (JNK) were analyzed by western blot analysis. There were 75 miRNAs that demonstrated >1.5‑fold changes in expression levels. miR-101a was highly upregulated at 3 h. miR-21 was upregulated in the OA group throughout the 24 h following OA challenge. miR-1 was the most downregulated miRNA at 24 h. In order to examine the expression levels of PTEN and Akt as targets of miR-21, western blot analysis was performed. At 3 h, the levels of PTEN were attenuated in the OA group as compared with those in the control group; however, p-Akt/Akt levels were increased at 3 h for the OA group. PTEN and p-Akt/Akt were significantly higher in the OA group at 3 h and were rapidly decreased at 6 h. The immunohistochemical stain of α-smooth muscle actin in the bronchial and alveolar wall increased 24 h after OA‑induced ALI. These results indicated that the profile of miRNAs dynamically changed throughout the OA-induced ALI process, and mitogen-activated protein kinase activation, PTEN/Akt pathway alteration and smooth muscle actin activation were observed in this ALI model.
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Affiliation(s)
- Sang Mook Lee
- Department of Anaesthesia and Pain Medicine, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seocho-gu, Seoul 137‑701, Republic of Korea
| | - Hyunsoo Choi
- Clinical Research Institute, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seocho-gu, Seoul 137‑701, Republic of Korea
| | - Geumjin Yang
- Clinical Research Institute, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seocho-gu, Seoul 137‑701, Republic of Korea
| | - Ki Cheol Park
- Clinical Research Institute, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seocho-gu, Seoul 137‑701, Republic of Korea
| | - Sikyoung Jeong
- Department of Emergency Medicine, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seocho-gu, Seoul 137‑701, Republic of Korea
| | - Sungyoup Hong
- Department of Emergency Medicine, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seocho-gu, Seoul 137‑701, Republic of Korea
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Reyes-Quiroz ME, Alba G, Saenz J, Santa-María C, Geniz I, Jiménez J, Ramírez R, Martín-Nieto J, Pintado E, Sobrino F. Oleic acid modulates mRNA expression of liver X receptor (LXR) and its target genes ABCA1 and SREBP1c in human neutrophils. Eur J Nutr 2014; 53:1707-17. [PMID: 24722912 DOI: 10.1007/s00394-014-0677-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Accepted: 02/19/2014] [Indexed: 01/04/2023]
Abstract
PURPOSE Regulation of liver X receptors (LXRs) is essential for cholesterol homeostasis and inflammation. The present study was conducted to determine whether oleic acid (OA) could regulate mRNA expression of LXRα and LXRα-regulated genes and to assess the potential promotion of oxidative stress by OA in neutrophils. METHODS Human neutrophils were treated with OA at different doses and LXR target gene expression, oxidative stress production, lipid efflux and inflammation state were analyzed. RESULTS We describe that mRNA synthesis of both LXRα and ABCA1 (a reverse cholesterol transporter) was induced by OA in human neutrophils. This fatty acid enhanced the effects of LXR ligands on ABCA1 and LXR expression, but it decreased the mRNA levels of sterol regulatory element-binding protein 1c (a transcription factor that regulates the synthesis of triglycerides). Although OA elicited a slight oxidative stress in the short term (15-30 min) in neutrophils, it is unlikely that this is relevant for the modulation of transcription in our experimental conditions, which involve longer incubation time (i.e., 6 h). Of physiological importance is our finding that OA depresses intracellular lipid levels and that markers of inflammation, such as ERK1/2 and p38 mitogen-activated protein kinase phosphorylation, were decreased by OA treatment. In addition, 200 μM OA reduced the migration of human neutrophils, another marker of the inflammatory state. However, OA did not affect lipid peroxidation induced by pro-oxidant agents. CONCLUSIONS This work presents for the first time evidence that human neutrophils are highly sensitive to OA and provides novel data in support of a protective role of this monounsaturated acid against the activation of neutrophils during inflammation.
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Affiliation(s)
- María Edith Reyes-Quiroz
- Departamento de Bioquímica Médica y Biología Molecular, Facultad de Medicina, Universidad de Sevilla, Avda. Sánchez Pizjuán 4, 41009, Sevilla, Spain
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Cornélio Favarin D, Robison de Oliveira J, Jose Freire de Oliveira C, de Paula Rogerio A. Potential effects of medicinal plants and secondary metabolites on acute lung injury. BIOMED RESEARCH INTERNATIONAL 2013; 2013:576479. [PMID: 24224172 PMCID: PMC3810192 DOI: 10.1155/2013/576479] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Revised: 08/16/2013] [Accepted: 08/23/2013] [Indexed: 12/20/2022]
Abstract
Acute lung injury (ALI) is a life-threatening syndrome that causes high morbidity and mortality worldwide. ALI is characterized by increased permeability of the alveolar-capillary membrane, edema, uncontrolled neutrophils migration to the lung, and diffuse alveolar damage, leading to acute hypoxemic respiratory failure. Although corticosteroids remain the mainstay of ALI treatment, they cause significant side effects. Agents of natural origin, such as medicinal plants and their secondary metabolites, mainly those with very few side effects, could be excellent alternatives for ALI treatment. Several studies, including our own, have demonstrated that plant extracts and/or secondary metabolites isolated from them reduce most ALI phenotypes in experimental animal models, including neutrophil recruitment to the lung, the production of pro-inflammatory cytokines and chemokines, edema, and vascular permeability. In this review, we summarized these studies and described the anti-inflammatory activity of various plant extracts, such as Ginkgo biloba and Punica granatum, and such secondary metabolites as epigallocatechin-3-gallate and ellagic acid. In addition, we highlight the medical potential of these extracts and plant-derived compounds for treating of ALI.
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Affiliation(s)
- Daniely Cornélio Favarin
- Departamento de Clínica Médica, Laboratório de ImunoFarmacologia Experimental, Instituto de Ciências da Saúde, Universidade Federal do Triângulo Mineiro, Rua Manoel Carlos 162, 38025-380 Uberaba, MG, Brazil
| | - Jhony Robison de Oliveira
- Departamento de Clínica Médica, Laboratório de ImunoFarmacologia Experimental, Instituto de Ciências da Saúde, Universidade Federal do Triângulo Mineiro, Rua Manoel Carlos 162, 38025-380 Uberaba, MG, Brazil
| | | | - Alexandre de Paula Rogerio
- Departamento de Clínica Médica, Laboratório de ImunoFarmacologia Experimental, Instituto de Ciências da Saúde, Universidade Federal do Triângulo Mineiro, Rua Manoel Carlos 162, 38025-380 Uberaba, MG, Brazil
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