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influenza asthma

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Chris S Earl, Teh Wooi Keong, Shi-qi An, Sarah Murdoch, Yvonne McCarthy, Junkal Garmendia, Joseph Ward, J Maxwell Dow, Liang Yang, George A O'Toole & Robert P RyanThe above article, published May 20 2015 in EMBO Molecular Medicine , has been retracted by agreement between the authors of the study, CSE, TWK, SQA, SM, YMcC, JG, JW, JMD, LY, RPR, the journal Chief Editor and the EMBO Head of Scientific Publications in accordance with the outcomes of independent investigations conducted by the University of Dundee and University College Cork...
March 12, 2018: EMBO Molecular Medicine
Koen B Pouwels, F Christiaan K Dolk, David R M Smith, Julie V Robotham, Timo Smieszek
Objectives: Previous work based on guidelines and expert opinion identified 'ideal' prescribing proportions-the overall proportion of consultations that should result in an antibiotic prescription-for common infectious conditions. Here, actual condition-specific prescribing proportions in primary care in England were compared with ideal prescribing proportions identified by experts. Methods: All recorded consultations for common infectious conditions (cough, bronchitis, exacerbations of asthma or chronic obstructive pulmonary disease, sore throat, rhinosinusitis, otitis media, lower respiratory tract infection, upper respiratory tract infection, influenza-like illness, urinary tract infection, impetigo, acne, gastroenteritis) for 2013-15 were extracted from The Health Improvement Network (THIN) database...
February 1, 2018: Journal of Antimicrobial Chemotherapy
George V Guibas, Maria Tsolia, Ioannis Christodoulou, Fotini Stripeli, Zoi Sakkou, Nikolaos G Papadopoulos
BACKGROUND: Rhinovirus (RV) is an established trigger of asthma attacks, whereas such a link is less consistent for influenza virus (IFV). OBJECTIVE: In the context of precision medicine, we hypothesized that IFV infection may cause a condition essentially different from RV, and we investigated this by evaluating clinical characteristics of RV/IFV-positive and -negative children with respiratory symptoms and/or fever. METHODS: 1207 children, 6-months to 13-years old, hospitalized for flu-like illness were recruited in this cross-sectional study...
February 23, 2018: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
M Gia Green, Natasha Petroff, Krista M D La Perle, Stefan Niewiesk
Eosinophils have been postulated to play a protective role against infection with respiratory syncytial virus (RSV), increase the severity of allergic asthma during respiratory viral infection, and drive vaccine-enhanced disease. To address these questions in the cotton rat model of RSV infection, we characterized cotton rat eosinophils by electron microscopy as well as by bronchoalveolar lavage and histology of lung sections. Using these methods, we demonstrated that eosinophils comprise approximately half of all cells in the bronchoalveolar lavage fluids from cotton rats...
February 1, 2018: Comparative Medicine
Kelvin K W To, Lu Lu, Carol H Y Fong, Alan K L Wu, Ka-Yi Mok, Cyril C Y Yip, Yi-Hong Ke, Kong-Hung Sze, Susanna K P Lau, Ivan F N Hung, Kwok-Yung Yuen
OBJECTIVES: We assessed the immunological response of hospitalized adult patients with rhinovirus infection, including critically-ill patients. METHODS: The differential white blood cell (WBC) count and the levels of 29 plasma cytokines/chemokines were compared between 50 adult hospitalized patients with rhinovirus infection and 100 age-matched controls with influenza virus infection. RESULTS: The demographics and comorbidities were similar between rhinovirus and influenza patients, but severe disease was more common for the rhinovirus cohort...
February 15, 2018: Journal of Infection
Jose A Romero-Espinoza, Yazmin Moreno-Valencia, Rodrigo H Coronel-Tellez, Manuel Castillejos-Lopez, Andres Hernandez, Aaron Dominguez, Angel Miliar-Garcia, Arturo Barbachano-Guerrero, Rogelio Perez-Padilla, Alejandro Alejandre-Garcia, Joel A Vazquez-Perez
BACKGROUND: Acute asthma exacerbations and pneumonia are important causes of morbidity and mortality in children and may coexist in the same children, although symptom overlap may lead to difficulties in diagnosis. Microbial and viral diversity and differential abundance of either may play an important role in infection susceptibility and the development of acute and chronic respiratory diseases. OBJECTIVES: To describe the virome and bacteriome present in the upper respiratory tract of hospitalized children with a clinical diagnosis of asthma and pneumonia during an acute exacerbation and an acute respiratory illness ARI episode respectively...
2018: PloS One
Kazuhiro Uda, Kensuke Shoji, Chitose Koyama-Wakai, Munehiro Furuichi, Noriyasu Iwase, Seiichiro Fujisaki, Shinji Watanabe, Isao Miyairi
BACKGROUND: Influenza A(H1N1)pdm09 virus infections often manifest severe respiratory symptoms, particularly in patients with a past history of allergic disease. Most of these findings were reported during the 2009 pandemic. The purpose of this study was to detail the clinical characteristics of influenza virus-induced lower respiratory infection (LRI) during the A(H1N1)pdm09-predominant 2015-2016 season. METHODS: We retrospectively reviewed the clinical characteristics of influenza-induced LRI cases in children admitted to a tertiary children's hospital...
February 9, 2018: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
Michael D Schweitzer, Andrew S Calzadilla, Oriana Salamo, Arash Sharifi, Naresh Kumar, Gregory Holt, Michael Campos, Mehdi Mirsaeidi
Dust storms are strong winds which lead to particle exposure over extensive areas. These storms influence air quality on both a local and global scale which lead to both short and long-term effects. The frequency of dust storms has been on the rise during the last decade. Forecasts suggest that their incidence will increase as a response to the effects of climate change and anthropogenic activities. Elderly people, young children, and individuals with chronic cardiopulmonary diseases are at the greatest risk for health effects of dust storms...
February 6, 2018: Environmental Research
Ioannis N Mammas, Anne Greenough, Maria Theodoridou, Anna Kramvis, Maria Rusan, Angeliki Melidou, Paraskevi Korovessi, Georgia Papaioannou, Alexia Papatheodoropoulou, Chryssie Koutsaftiki, Maria Liston, George Sourvinos, Demetrios A Spandidos
The 3rd Workshop on Paediatric Virology, which took place on October 7th, 2017 in Athens, Greece, highlighted the role of breast feeding in the prevention of viral infections during the first years of life. Moreover, it focused on the long-term outcomes of respiratory syncytial virus and rhinovirus infections in prematurely born infants and emphasised the necessity for the development of relevant preventative strategies. Other topics that were covered included the vaccination policy in relation to the migration crisis, mother‑to‑child transmission of hepatitis B and C viruses, vaccination against human papilloma viruses in boys and advances on intranasal live‑attenuated vaccination against influenza...
January 4, 2018: International Journal of Molecular Medicine
Xue-Yan Zheng, Yan-Jun Xu, Wei-Jie Guan, Li-Feng Lin
Despite increased understanding of how viral infection is involved in asthma exacerbations, it is less clear which viruses are involved and to what extent they contribute to asthma exacerbations. Here, we sought to determine the prevalence of different respiratory viruses during asthma exacerbations. Systematic computerized searches of the literature up to June 2017 without language limitation were performed. The primary focus was on the prevalence of respiratory viruses, including AdV (adenovirus), BoV (bocavirus), CoV (coronavirus), CMV (cytomegalovirus), EnV (enterovirus), HSV (herpes simplex virus), IfV (influenza virus), MpV (metapneumovirus), PiV (parainfluenzavirus), RV (rhinovirus) and RSV (respiratory syncytial virus) during asthma exacerbations...
January 11, 2018: Archives of Virology
Sarah E Henrickson, Sasikanth Manne, Douglas V Dolfi, Kathleen D Mansfield, Kaela Parkhouse, Rakesh D Mistry, Elizabeth R Alpern, Scott E Hensley, Kathleen E Sullivan, Susan E Coffin, E John Wherry
Acute respiratory tract viral infections (ARTIs) cause significant morbidity and mortality. CD8 T cells are fundamental to host responses, but transcriptional alterations underlying anti-viral mechanisms and links to clinical characteristics remain unclear. CD8 T cell transcriptional circuitry in acutely ill pediatric patients with influenza-like illness was distinct for different viral pathogens. Although changes included expected upregulation of interferon-stimulated genes (ISGs), transcriptional downregulation was prominent upon exposure to innate immune signals in early IFV infection...
January 9, 2018: Cell Reports
Ruby Biezen, Danilla Grando, Danielle Mazza, Bianca Brijnath
INTRODUCTION: Influenza vaccination has been shown to be safe and effective against influenza and in the prevention of complicating secondary respiratory illnesses. However, its uptake in young children remains low. This study explored the views, attitudes and practices of parents and primary care providers (PCPs) on their knowledge and acceptance of influenza vaccination in children under 5. METHODS: Using a cross-sectional qualitative research design, we conducted 30 in-depth interviews with PCPs (i...
January 5, 2018: Vaccine
Kai Sen Tan, Hsiao Hui Ong, Yan Yan, Jing Liu, Chunwei Li, Yew Kwang Ong, Kim Thye Thong, Hyung Won Choi, De-Yun Wang, Vincent T Chow
Human rhinoviruses (HRVs) are the commonest cause of the common cold. While HRV is less pathogenic than other respiratory viruses, it is frequently associated with exacerbation of chronic respiratory diseases such as rhinosinusitis and asthma. Nasal epithelial cells are the first sites of viral contact, immune initiation, and airway interconnectivity, but there are limited studies on HRV infection of nasal epithelial cells. Hence, we established a model of HRV infection of in vitro-differentiated human nasal epithelial cells (hNECs) derived from multiple individuals...
March 5, 2018: Journal of Infectious Diseases
Brenda L Coleman, Shaza A Fadel, Tiffany Fitzpatrick, Sera-Melisa Thomas
AIM: To determine factors associated with a serious outcome (hospital admission or severe outcome: critical care or death) and associated with illness caused by laboratory-confirmed influenza, with a specific interest in low- and middle-income countries (LMIC). METHOD: Databases were searched on 11 March 2016 for reports of influenza and factors associated with mortality or morbidity in humans, with no language restrictions. Pooled risks were estimated using random-effects models...
January 2018: Influenza and Other Respiratory Viruses
Ryan E Malosh, Emily T Martin, Terho Heikkinen, W Abdullah Brooks, Richard J Whitley, Arnold S Monto
Background: Oseltamivir has been used to treat children with influenza for nearly two decades, with treatment currently approved for infants 2 weeks of age or older, but efficacy and safety remain controversial. Newer randomized placebo controlled trials (RCT), not included in previous meta-analyses, can add to the evidence base. Methods: We conducted a systematic review to identify RCTs of oseltamivir therapy in children. We obtained individual patient data and examined protocol-defined outcomes...
November 23, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
Cécile Vignal, Muriel Pichavant, Laurent Y Alleman, Madjid Djouina, Florian Dingreville, Esperanza Perdrix, Christophe Waxin, Adil Ouali Alami, Corinne Gower-Rousseau, Pierre Desreumaux, Mathilde Body-Malapel
BACKGROUND: Air pollution is a recognized aggravating factor for pulmonary diseases and has notably deleterious effects on asthma, bronchitis and pneumonia. Recent studies suggest that air pollution may also cause adverse effects in the gastrointestinal tract. Accumulating experimental evidence shows that immune responses in the pulmonary and intestinal mucosae are closely interrelated, and that gut-lung crosstalk controls pathophysiological processes such as responses to cigarette smoke and influenza virus infection...
November 22, 2017: Particle and Fibre Toxicology
Yutaka Yoshii, Kenichiro Shimizu, Miyuki Morozumi, Naoko Chiba, Kimiko Ubukata, Hironori Uruga, Shigeo Hanada, Hiroshi Wakui, Shunsuke Minagawa, Hiromichi Hara, Takanori Numata, Keisuke Saito, Jun Araya, Katsutoshi Nakayama, Kazuma Kishi, Kazuyoshi Kuwano
BACKGROUND: Respiratory tract infection is a major cause of acute exacerbation of bronchial asthma (AEBA). Although recent findings suggest that common bacteria are causally associated with AEBA, a comprehensive epidemiologic analysis of infectious pathogens including common/atypical bacteria and viruses in AEBA has not been performed. Accordingly, we attempted to detect pathogens during AEBA by using real-time polymerase chain reaction (PCR) in comparison to conventional methods. METHODS: We prospectively enroled adult patients with AEBA from August 2012 to March 2014...
November 22, 2017: BMC Pulmonary Medicine
K Backman, H Ollikainen, E Piippo-Savolainen, K Nuolivirta, M Korppi
BACKGROUND: Viral aetiology of infection has a significant role in the long-term outcome of early-childhood wheezing. OBJECTIVE: This study examines asthma and lung function in adulthood after early-childhood wheezing induced by respiratory syncytial virus (RSV) and rhinovirus (RV). METHODS: A total of 100 children were hospitalized for a wheezing episode at less than 24 months of age from 1992 to 1993 in Kuopio University Hospital (Finland)...
November 16, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
Chrysanthi Skevaki, Christoph Hudemann, Mikhail Matrosovich, Christian Möbs, Sinu Paul, Andreas Wachtendorf, Bilal Alashkar Alhamwe, Daniel P Potaczek, Stefanie Hagner, Diethard Gemsa, Holger Garn, Alessandro Sette, Harald Renz
BACKGROUND: The hygiene hypothesis is the leading concept to explain the current asthma epidemic, which is built on the observation that a lack of bacterial contact early in life induces allergic Th2 immune responses. OBJECTIVE: Since little is known about the contribution of respiratory viruses in this context, we evaluated the effect of prior influenza-infection on the development of allergic asthma. METHODS: Mice were infected with influenza and once recovered, subjected to an ovalbumin or house dust mite-induced experimental asthma protocol...
November 10, 2017: Journal of Allergy and Clinical Immunology
Nguyen Thi Trang Nhung, Christian Schindler, Tran Minh Dien, Nicole Probst-Hensch, Laura Perez, Nino Künzli
BACKGROUND: Lower respiratory diseases are the most frequent causes of hospital admission in children worldwide, particularly in developing countries. Daily levels of air pollution are associated with lower respiratory diseases, as documented in many time-series studies. However, investigations in low-and-middle-income countries, such as Vietnam, remain sparse. OBJECTIVE: This study investigated the short-term association of ambient air pollution with daily counts of hospital admissions due to pneumonia, bronchitis and asthma among children aged 0-17 in Hanoi, Vietnam...
January 2018: Environment International
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