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10.1111/cea.12005 http://scihub22266oqcxt.onion/10.1111/cea.12005 23181789!4219353!23181789     free     free     free Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534       Clin+Exp+Allergy 2012 ; 42 (12): 1734-44 Nephropedia Template TP {{tp|p=23181789|t=2012. Nasal cytokine responses to natural colds in asthmatic children |pdf=|usr=}}{{23181789}} gab.com Text Nasal cytokine responses to natural colds in asthmatic children JO: Clin Exp Allergy http://www.kidney.de/pget.php?&tw=1&pmid=23181789 #FOAvip BACKGROUND: The mechanisms by which viruses induce asthma exacerbations are not well understood. OBJECTIVE: We characterized fluctuations in nasal aspirate cytokines during naturally occurring respiratory viral infections in children with asthma. METHODS: Sixteen children underwent home collections of nasal aspirates when they were without cold symptoms and again during self-reported respiratory illnesses. The presence of viral infection was ascertained by multiplex PCR. Cytokines were measured using multiplex immune assay. mRNA expression for selected markers of viral infection was measured using RT-PCR. A cumulative respiratory symptom score was calculated for each day of measurement. Generalized estimated equations were used to evaluate associations between viral infection and marker elevation, and between marker elevation and symptom score. RESULTS: The 16 patients completed a total of 37 weeks of assessment (15 'well' weeks; 22 self-assessed 'sick' weeks). Viral infections were detected in 3 of the 'well' weeks and 17 of the 'sick' weeks (10 rhinovirus, three coronavirus, two influenza A, two influenza B, two respiratory syncytial virus, one parainfluenza). Compared to virus-negative well weeks, nasal aspirate IFN-gamma, CXCL8/IL-8, CXCL10/IP-10, CCL5/RANTES, CCL11/eotaxin-1, CCL2/MCP-1, CCL4/MIP-1beta, CCL7/MCP-3, and CCL20/MIP3alpha protein levels increased during virus-positive sick weeks. Only a subset of cytokines (IFN-gamma, CXCL8, CCL2, CCL4, CCL5, and CCL20) correlated with self-reported respiratory tract symptoms. While many aspirates were dilute and showed no mRNA signal, viral infection significantly increased the number of samples that were positive for IFN-lambda1, IFN-lambda2/3, TLR3, RIG-I, and IRF7 mRNA. CONCLUSIONS AND CLINICAL RELEVANCE: We conclude that in children with asthma, naturally occurring viral infections apparently induce a robust innate immune response including expression of specific chemokines, IFNs, and IFN-responsive genes. Twit Text FOAVip Nasal cytokine responses to natural colds in asthmatic children ????Clin Exp Allergy http://www.kidney.de/pget.php?&tw=1&pmid=23181789 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=23181789 #FOAvip English Wikipedia <ref>{{Cite pmid|23181789}}</ref> Nasal cytokine responses to natural colds in asthmatic children #MMPMID23181789 Lewis TC; Henderson TA; Carpenter AR; Ramirez IA; McHenry CL; Goldsmith AM; Ren X; Mentz GB; Mukherjee B; Robins TG; Joiner TA; Mohammad LS; Nguyen ER; Burns MA; Burke DT; Hershenson MB Clin Exp Allergy 2012[Dec]; 42 (12): 1734-44 PMID23181789show ga BACKGROUND: The mechanisms by which viruses induce asthma exacerbations are not well understood. OBJECTIVE: We characterized fluctuations in nasal aspirate cytokines during naturally occurring respiratory viral infections in children with asthma. METHODS: Sixteen children underwent home collections of nasal aspirates when they were without cold symptoms and again during self-reported respiratory illnesses. The presence of viral infection was ascertained by multiplex PCR. Cytokines were measured using multiplex immune assay. mRNA expression for selected markers of viral infection was measured using RT-PCR. A cumulative respiratory symptom score was calculated for each day of measurement. Generalized estimated equations were used to evaluate associations between viral infection and marker elevation, and between marker elevation and symptom score. RESULTS: The 16 patients completed a total of 37 weeks of assessment (15 'well' weeks; 22 self-assessed 'sick' weeks). Viral infections were detected in 3 of the 'well' weeks and 17 of the 'sick' weeks (10 rhinovirus, three coronavirus, two influenza A, two influenza B, two respiratory syncytial virus, one parainfluenza). Compared to virus-negative well weeks, nasal aspirate IFN-gamma, CXCL8/IL-8, CXCL10/IP-10, CCL5/RANTES, CCL11/eotaxin-1, CCL2/MCP-1, CCL4/MIP-1beta, CCL7/MCP-3, and CCL20/MIP3alpha protein levels increased during virus-positive sick weeks. Only a subset of cytokines (IFN-gamma, CXCL8, CCL2, CCL4, CCL5, and CCL20) correlated with self-reported respiratory tract symptoms. While many aspirates were dilute and showed no mRNA signal, viral infection significantly increased the number of samples that were positive for IFN-lambda1, IFN-lambda2/3, TLR3, RIG-I, and IRF7 mRNA. CONCLUSIONS AND CLINICAL RELEVANCE: We conclude that in children with asthma, naturally occurring viral infections apparently induce a robust innate immune response including expression of specific chemokines, IFNs, and IFN-responsive genes. |*Asthma/immunology/virology[MESH] |Adolescent[MESH] |Chemokines/immunology/metabolism[MESH] |Child[MESH] |Cytokines/genetics/immunology/*metabolism[MESH] |Female[MESH] |Humans[MESH] |Immunity, Innate[MESH] |Interferons/immunology/metabolism[MESH] |Male[MESH] |Nasal Cavity/*immunology[MESH] |Respiratory Tract Infections/diagnosis/*immunology/physiopathology/virology[MESH] |Virus Diseases/diagnosis/*immunology/physiopathology/virology[MESH]Nasal cytokine responses to natural colds in asthmatic children (epmc).pdf DeepDyve Pubget Overpricing