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https://www.readbyqxmd.com/read/28912779/v%C3%AE-4-%C3%AE-%C3%AE-t-cells-aggravate-severe-h1n1-influenza-virus-infection-induced-acute-pulmonary-immunopathological-injury-via-secreting-interleukin-17a
#1
Chunxue Xue, Mingjie Wen, Linlin Bao, Hui Li, Fengdi Li, Meng Liu, Qi Lv, Yunqing An, Xulong Zhang, Bin Cao
The influenza A (H1N1) pdm09 virus remains a critical global health concern and causes high levels of morbidity and mortality. Severe acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are the major outcomes among severely infected patients. Our previous study found that interleukin (IL)-17A production by humans or mice infected with influenza A (H1N1) pdm09 substantially contributes to ALI and subsequent morbidity and mortality. However, the cell types responsible for IL-17A production during the early stage of severe influenza A (H1N1) pdm09 infection remained unknown...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28905112/extracorporeal-membrane-oxygenation-in-spina-bifida-and-h1n1-induced-acute-respiratory-distress-syndrome
#2
Oliver Jansen, Oliver Kamp, Christian Waydhas, Valentin Rausch, Thomas Armin Schildhauer, Justus Strauch, Dirk Buchwald, Uwe Hamsen
Acute respiratory distress syndrome (ARDS) is characterized as an acute hypoxemic and/or hypercapnic respiratory failure seen in critically ill patients and is still, although decreased over the past few years, associated with high mortality. Furthermore, ARDS may be a life-threatening complication of H1N1 pneumonia. We report on a 45-year-old spina bifida patient with confirmed H1N1 influenza virus infection causing acute respiratory failure, who was successfully weaned from 42-day veno-venous extracorporeal membrane oxygenation (vv-ECMO) treatment with an excellent outcome...
September 13, 2017: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/28885377/clinical-pearls-in-venovenous-extracorporeal-life-support-for-adult-respiratory-failure
#3
Chee Kiang Tay, Kiick Sung, Yang Hyun Cho
Extracorporeal life support (ECLS) has been widely utilized to treat neonatal respiratory failure for two decades. However, its uptake in the case of adult respiratory failure has been slow because of a paucity of quality evidence and a sluggish tempo of ECLS-related technological advances. In recent years, interest in ECLS has been piqued after encouraging results were reported from its use during the 2009 H1N1 influenza pandemic. In a world constantly under threat from another influenza epidemic or deadly novel respiratory infection, e...
September 6, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28774302/airway-and-parenchyma-immune-cells-in-influenza-a-h1n1-pdm09-viral-and-non-viral-diffuse-alveolar-damage
#4
Monique Buttignol, Ruy Camargo Pires-Neto, Renata Calciolari Rossi E Silva, Marina Ballarin Albino, Marisa Dolhnikoff, Thais Mauad
BACKGROUND: Diffuse alveolar damage (DAD), which is the histological surrogate for acute respiratory distress syndrome (ARDS), has a multifactorial aetiology. Therefore it is possible that the immunopathology differs among the various presentations of DAD. The aim of this study is to compare lung immunopathology of viral (influenza A(H1N1)pdm09) to non-viral, extrapulmonary aetiologies in autopsy cases with DAD. METHODS: The lung tissue of 44 patients, was divided in the H1N1 group (n = 15) characterized by severe pulmonary injury due to influenza A(H1N1)pdm09 infection; the ARDS group (n = 13), characterized by patients with DAD due to non-pulmonary causes; and the Control group (n = 16), consisting of patients with non-pulmonary causes of death...
August 3, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28714069/discriminant-biomarkers-of-acute-respiratory-distress-syndrome-associated-to-h1n1-influenza-identified-by-metabolomics-hplc-qtof-ms-ms-platform
#5
Alessia Ferrarini, Laura Righetti, Ma Paz Martínez, Mariano Fernández-López, Annalaura Mastrangelo, Juan P Horcajada, Antoni Betbesé, Andrés Esteban, Jordi Ordóñez, Joaquín Gea, Jesús Ruiz Cabello, Federica Pellati, José A Lorente, Nicolás Nin, Francisco J Rupérez
Acute respiratory distress syndrome (ARDS) is a serious complication of influenza A (H1N1) virus infection. Its pathogenesis is unknown and biomarkers are lacking. Untargeted metabolomics allows the analysis of the whole metabolome in a biological compartment, identifying patterns associated with specific conditions. We hypothesized that LC-MS could help identify discriminant metabolites able to define the metabolic alterations occurring in patients with influenza A (H1N1) virus infection that developed ARDS...
July 17, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28690868/mirna-200c-3p-is-crucial-in-acute-respiratory-distress-syndrome
#6
Qiang Liu, Jianchao Du, Xuezhong Yu, Jun Xu, Fengming Huang, Xiaoyun Li, Cong Zhang, Xiao Li, Jiahui Chang, Daozhen Shang, Yan Zhao, Mingyao Tian, Huijun Lu, Jiantao Xu, Chang Li, Huadong Zhu, Ningyi Jin, Chengyu Jiang
Influenza infection and pneumonia are known to cause much of their mortality by inducing acute respiratory distress syndrome (ARDS), which is the most severe form of acute lung injury (ALI). Angiotensin-converting enzyme 2 (ACE2), which is a negative regulator of angiotensin II in the renin-angiotensin system, has been reported to have a crucial role in ALI. Downregulation of ACE2 is always associated with the ALI or ARDS induced by avian influenza virus, severe acute respiratory syndrome-coronavirus, respiratory syncytial virus and sepsis...
2017: Cell Discovery
https://www.readbyqxmd.com/read/28688767/the-activation-of-b-cells-enhances-dc-sign-expression-and-promotes-susceptibility-of-b-cells-to-hpai-h5n1-infection
#7
Prasit Na-Ek, Jutarat Thewsoongnoen, Maytawan Thanunchai, Suwimon Wiboon-Ut, Noppadol Sa-Ard-Iam, Rangsini Mahanonda, Arunee Thitithanyanont
The interplay between highly pathogenic avian influenza (HPAI) H5N1 virus and immune cells has been extensively studied for years, as host immune components are thought to play significant roles in promoting the systemic spread of the virus and responsible for cytokine storm. Previous studies suggested that the interaction of B cells and monocytes could promote HPAI H5N1 infection by enhancing avian influenza virus receptor expression. In this study, we further investigate the relationship between the HPAI H5N1 virus, activated B cells, and DC-SIGN expression...
September 2, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28675634/predictors-for-fatal-human-infections-with-avian-h7n9-influenza-evidence-from-four-epidemic-waves-in-jiangsu-province-eastern-china-2013-2016
#8
Wang Ma, Haodi Huang, Jian Chen, Ke Xu, Qigang Dai, Huiyan Yu, Fei Deng, Xian Qi, Shenjiao Wang, Jie Hong, Changjun Bao, Xiang Huo, Minghao Zhou
BACKGROUND: Four epidemic waves of human infection with H7N9 have been recorded in China up to 1 June 2016, including in Jiangsu Province. However, few studies have investigated the differences in patients' characteristics among the four epidemic waves, and the analyses of factors associated with fatal infection lacked statistical power in previous studies due to limited sample size. METHODS: All laboratory-confirmed A(H7N9) patients in Jiangsu province were analysed...
September 2017: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/28664154/geldanamycin-reduces-acute-respiratory-distress-syndrome-and-promotes-the-survival-of-mice-infected-with-the-highly-virulent-h5n1-influenza-virus
#9
Chengmin Wang, Pengpeng Liu, Jing Luo, Hua Ding, Yan Gao, Lei Sun, Fubing Luo, Xiaodong Liu, Hongxuan He
Infections with lethal influenza viruses lead to acute lung injury (ALI) or acute respiratory distress syndrome (ARDS), which may be related to the activation of the host's immune system. Here, in our study, male C57BL/6 mice were infected with 10 LD50 of the H5N1 influenza virus and treated with geldanamycin or oseltamivir 2 h after infection. Lung injury was assessed by histopathology on days 4 and 7. The viral load was quantified by measuring the NP gene expression level on days 2, 4, and 7. Levels of cytokines and chemokines in bronchoalveolar lavage fluids and inflammatory cells were analyzed at different time points...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28643320/revised-protocol-of-extracorporeal-membrane-oxygenation-ecmo-therapy-in-severe-ards-recommendations-of-the-veno-venous-ecmo-expert-panel-appointed-in-february-2016-by-the-national-consultant-on-anesthesiology-and-intensive-care
#10
Romuald Lango, Zbigniew Szkulmowski, Dariusz Maciejewski, Andrzej Sosnowski, Krzysztof Kusza
Extracorporeal Membrane Oxygenation (ECMO) has become well established technique of the treatment of severe acute respiratory failure (Veno-Venous ECMO) or circulatory failure (Veno-Arterial ECMO) which enables effective blood oxygenation and carbon dioxide removal for several weeks. Veno-Venous ECMO (V-V ECMO ) is a lifesaving treatment of patients in whom severe ARDS makes artificial lung ventilation unlikely to provide satisfactory blood oxygenation for preventing further vital organs damage and progression to death...
2017: Anaesthesiology Intensive Therapy
https://www.readbyqxmd.com/read/28635208/association-of-clinical-characteristics-of-patients-presenting-with-influenza-like-illness-or-severe-acute-respiratory-illness-with-development-of-acute-respiratory-distress-syndrome
#11
Muhammad Ijaz, Muhammad Jaffar Khan, Jawad Khan, Usama Usama
Clinical judgement and suspicion of influenza based on signs and symptoms of influenza-like illness and severe acute respiratory illness are critical for better patient outcome. Whether clinical characteristics of patients are associated with the development of acute respiratory distress syndrome and PCR positivity of samples was the aim of this study. We included all patients (n=37) presenting with influenza like illness (ILI) or severe acute respiratory illness (SARI) to a tertiary care hospital in northwest Pakistan during December 2015 until the end of January 2016...
May 18, 2017: Monaldi Archives for Chest Disease, Archivio Monaldi Per le Malattie del Torace
https://www.readbyqxmd.com/read/28553293/a-role-for-neutrophils-in-viral-respiratory-disease
#12
REVIEW
Jeremy V Camp, Colleen B Jonsson
Neutrophils are immune cells that are well known to be present during many types of lung diseases associated with acute respiratory distress syndrome (ARDS) and may contribute to acute lung injury. Neutrophils are poorly studied with respect to viral infection, and specifically to respiratory viral disease. Influenza A virus (IAV) infection is the cause of a respiratory disease that poses a significant global public health concern. Influenza disease presents as a relatively mild and self-limiting although highly pathogenic forms exist...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28421067/c-c-motif-chemokine-ligand-2-ccl2-mediates-acute-lung-injury-induced-by-lethal-influenza-h7n9-virus
#13
Chengcai Lai, Keyu Wang, Zhongpeng Zhao, Liangyan Zhang, Hongjing Gu, Penghui Yang, Xiliang Wang
An avian-origin influenza A (H7N9) virus was a cause for concern in China in the spring of 2013. Most H7N9 infections resulted in acute respiratory distress syndrome (ARDS), which is a severe form of acute lung injury (ALI) that contributes to morbidity and mortality. In this study, we induced viral ALI by infecting wild-type and CCL2-deficient mice with influenza H7N9 virus. The results suggested a close association between C-C motif chemokine ligand 2 (CCL2) expressions and ALI induced by a lethal H7N9 virus strain (A/Hebei/01/2013)...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28403799/descriptive-analysis-of-mortality-predictors-in-h1n1-influenza-in-south-indian-patients
#14
Kanav Khera, Ajit Singh, Girish Thunga, Jatin Agarwal, Shivanshu Awasthi, Jewel Maria Francis, Rama Bhat
BACKGROUND: H1N1 (hemagglutinin-H-neuroaminidase-N) influenza infection is associated with high morbidity and mortality because of associated complications and related factors. Predictors of mortality in H1N1 patients are studied with very few without seasonal/pandemic declaration. This study was carried out to describe the clinical features, complications and different risk factors that affect the outcome in the patients with confirmed H1N1influenza infection. METHODS: A retrospective study was done in Kasturba Medical College Hospital, Manipal, India by analyzing the medical records of 141 patients admitted from January, 2011 to June, 2015...
April 7, 2017: Infectious Disorders Drug Targets
https://www.readbyqxmd.com/read/28343415/is-therapeutic-hypothermia-for-acute-respiratory-distress-syndrome-the-future
#15
Adam J Hayek, Heath D White, Shekhar Ghamande, Christopher Spradley, Alejandro C Arroliga
INTRODUCTION: Severe acute respiratory distress syndrome (ARDS) has a high mortality, and there is limited knowledge about management of severe ARDS refractory to standard therapy. Early evidence suggests that therapeutic hypothermia (TH) could be a viable treatment for acute respiratory failure. We present 2 cases where TH was successfully used to manage refractory ARDS on extracorporeal membrane oxygenation (ECMO) and a review of the literature around TH and acute respiratory failure...
January 1, 2017: Journal of Intensive Care Medicine
https://www.readbyqxmd.com/read/28196469/extracorporeal-membrane-oxygenation-for-avian-influenza-a-h7n9-patient-with-acute-respiratory-distress-syndrome-a-case-report-and-short-literature-review
#16
Qi Nie, Ding-Yu Zhang, Wen-Juan Wu, Chao-Lin Huang, Zheng-Yi Ni
BACKGROUND: Extracorporeal membrane oxygenation (ECMO) is performed as an acceptable life-saving bridging procedure in patients with severe acute respiratory distress syndrome (ARDS).To patients with avian influenza A (H7N9)-associated ARDS, ECMO could be adopted as a feasible therapeutic solution. We present our successful experience with ECMO utilized in a respiratory failure patient with H7N9 infection. CASE PRESENTATION: A 44 years-old female with H7N9-induced ARDS was admitted to intensive care unit (ICU) and was treated with veno-venous ECMO for six days, antiviral therapy, prolonged corticosteroid infusion and other therapies...
February 14, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28178046/acute-respiratory-distress-syndrome-in-pregnant-women
#17
Barret Rush, Pawel Martinka, Brett Kilb, Robert C McDermid, John H Boyd, Leo Anthony Celi
OBJECTIVE: To estimate the rate of acute respiratory distress syndrome (ARDS) in pregnant patients as well as to investigate clinical conditions associated with mortality. METHODS: We used the Nationwide Inpatient Sample from 2006 to 2012 to identify a cohort of pregnant patients who underwent mechanical ventilation for ARDS. A multivariate model predicting in-hospital mortality was created. RESULTS: A total of 55,208,382 hospitalizations from the 2006-2012 Nationwide Inpatient Samples were analyzed...
March 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28144059/epidemiological-profile-of-acute-respiratory-distress-syndrome-patients-a-tertiary-care-experience
#18
Rahul Magazine, Shobitha Rao, Bharti Chogtu, Ramkumar Venkateswaran, Hameed Aboobackar Shahul, Umesh Goneppanavar
BACKGROUND: Acute respiratory distress syndrome (ARDS) is seen in critically ill patients. Its etiological spectrum in India is expected to be different from that seen in western countries due to the high prevalence of tropical infections. AIM: To study the epidemiological profile of ARDS patients. SETTING: A tertiary care hospital in Karnataka, India. MATERIALS AND METHODS: Retrospective analysis of 150 out of the 169 ARDS patients diagnosed during 2010-2012...
January 2017: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/28030441/does-permissive-hypoxaemia-during-extracorporeal-membrane-oxygenation-cause-long-term-neurological-impairment-a-study-in-patients-with-h1n1-induced-severe-respiratory-failure
#19
Bernhard Holzgraefe, Christin Andersson, Håkan Kalzén, Viktor von Bahr, Mikael Mosskin, Elna-Marie Larsson, Kenneth Palmér, Björn Frenckner, Anders Larsson
BACKGROUND: The Extracorporeal Life Support Organisation accepts permissive hypoxaemia in adult patients during extracorporeal membrane oxygenation (ECMO). The neurological long-term outcome of this approach has not yet been studied. OBJECTIVES: We investigated the prevalence of brain lesions and cognitive dysfunction in survivors from the Influenza A/H1N1 2009 pandemic treated with permissive hypoxaemia during ECMO for severe acute respiratory distress syndrome (ARDS)...
February 2017: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/27933286/viral-infection-in-the-development-and-progression-of-pediatric-acute-respiratory-distress-syndrome
#20
REVIEW
Steven Nye, Richard J Whitley, Michele Kong
Viral infections are an important cause of pediatric acute respiratory distress syndrome (ARDS). Numerous viruses, including respiratory syncytial virus (RSV) and influenza A (H1N1) virus, have been implicated in the progression of pneumonia to ARDS; yet the incidence of progression is unknown. Despite acute and chronic morbidity associated with respiratory viral infections, particularly in "at risk" populations, treatment options are limited. Thus, with few exceptions, care is symptomatic. In addition, mortality rates for viral-related ARDS have yet to be determined...
2016: Frontiers in Pediatrics
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