Search

Your search keyword '"Zetterquist, W."' showing total 15 results
Start Over Author "Zetterquist, W."
15 results on '"Zetterquist, W."'

1. IL-17–high asthma with features of a psoriasis immunophenotype

Author

Adcock, I.M., Ahmed, H., Auffray, C., Bakke, P., Bansal, A.T., Baribaud, F., Bates, S., Bel, E.H., Bigler, J., Bisgaard, H., Boedigheimer, M.J., Bønnelykke, K., Brandsma, J., Brinkman, P., Bucchioni, E., Burg, D., Bush, A., Caruso, M., Chaiboonchoe, A., Chanez, P., Chung, K.F., Compton, C.H., Corfield, J., D'Amico, A., Dahlen, S.E., De Meulder, B., Djukanovic, R., Erpenbeck, V.J., Erzen, D., Fichtner, K., Fitch, N., Fleming, L.J., Formaggio, E., Fowler, S.J., Frey, U., Gahlemann, M., Geiser, T., Guo, Y., Hashimoto, S., Haughney, J., Hedlin, G., Hekking, P.W., Higenbottam, T., Hohlfeld, J.M., Holweg, C., Horváth, I., Howarth, P., James, A.J., Knowles, R., Knox, A.J., Krug, N., Lefaudeux, D., Loza, M.J., Lutter, R., Manta, A., Masefield, S., Mazein, A., Meiser, A., Middelveld, R.J.M., Miralpeix, M., Montuschi, P., Mores, N., Murray, C.S., Musial, J., Myles, D., Pahus, L., Pandis, I., Pavlidis, S., Powell, P., Praticò, G., Rao, M. Puig N., Riley, J., Roberts, A., Roberts, G., Rowe, A., Sandström, T., Seibold, W., Selby, A., Shaw, D.E., Sigmund, R., Singer, F., Skipp, P.J., Sousa, A.R., Sterk, P.J., Sun, K., Thornton, B., van Aalderen, W.M., van Geest, M., Vestbo, J., Vissing, N.H., Wagener, A.H., Wagers, S.S., Weiszhart, Z., Wheelock, C.E., Wilson, S.J., Aliprantis, Antonios, Allen, David, Alving, Kjell, Badorrek, P., Balgoma, David, Ballereau, S., Barber, Clair, Batuwitage, Manohara Kanangana, Bautmans, A., Bedding, A., Behndig, A.F., Beleta, Jorge, Berglind, A., Berton, A., Bochenek, Grazyna, Braun, Armin, Campagna, D., Carayannopoulos, Leon, Casaulta, C., Chaleckis, Romanas, Dahlén, B., Davison, imothy, De Alba, Jorge, De Lepeleire, Inge, Dekker, Tamara, Delin, Ingrid, Dennison, P., Dijkhuis, Annemiek, Dodson, Paul, Draper, Aleksandra, Dyson, K., Edwards, Jessica, El Hadjam, L., Emma, Rosalia, Ericsson, Magnus, Faulenbach, C., Flood, Breda, Galffy, G., Gallart, Hector, Garissi, D., Gent, J., Gerhardsson de Verdier, M., Gibeon, D., Gomez, Cristina, Gove, Kerry, Gozzard, Neil, Guillmant-Farry, E., Henriksson, E., Hewitt, Lorraine, Hoda, U., Hu, Richard, Hu, Sile, Hu, X., Jeyasingham, E., Johnson, K., Jullian, N., Kamphuis, Juliette, Kennington, Erika J., Kerry, Dyson, Kerry, G., Klüglich, M., Knobel, Hugo, Kolmert, Johan, Konradsen, J.R., Kots, Maxim, Kretsos, Kosmas, Krueger, L., Kuo, Scott, Kupczyk, Maciej, Lambrecht, Bart, Lantz, A.-S., Larminie, Christopher, Larsson, L.X., Latzin, P., Lazarinis, N., Lemonnier, N., Lone-Latif, Saeeda, Lowe, L.A., Manta, Alexander, Marouzet, Lisa, Martin, Jane, Mathon, Caroline, McEvoy, L., Meah, Sally, Menzies-Gow, A., Metcalf, Leanne, Mikus, Maria, Monk, Philip, Naz, Shama, Nething, K., Nicholas, Ben, Nihlén, U., Nilsson, Peter, Niven, R., Nordlund, B., Nsubuga, S., Pacino, Antonio, Palkonen, Susanna, Pellet, J., Pennazza, Giorgio, Petrén, Anne, Pink, Sandy, Pison, C., Postle, Anthony, Rahman-Amin, Malayka, Ravanetti, Lara, Ray, Emma, Reinke, Stacey, Reynolds, Leanne, Riemann, K., Robberechts, Martine, Rocha, J.P., Rossios, C., Russell, Kirsty, Rutgers, Michael, Santini, G., Santoninco, Marco, Saqi, M., Schoelch, Corinna, Schofield, James P.R., Scott, S., Sehgal, N., Sjödin, Marcus, Smids, Barbara, Smith, Caroline, Smith, Jessica, Smith, Katherine M., Söderman, P., Sogbessan, A., Spycher, F., Staykova, Doroteya, Stephan, S., Stokholm, J., Strandberg, K., Sunther, M., Szentkereszty, M., Tamasi, L., Tariq, K., Thörngren, John-Olof, Thorsen, Jonathan, Valente, S., van de Pol, Marianne, van Drunen, C.M., Van Eyll, Jonathan, Versnel, Jenny, Vink, Anton, von Garnier, C., Vyas, A., Wald, Frans, Walker, Samantha, Ward, Jonathan, Wetzel, Kristiane, Wiegman, Coen, Williams, Siân, Yang, Xian, Yeyasingham, Elizabeth, Amgen, W. Yu, Zetterquist, W., Zolkipli, Z., Zwinderman, A.H., Östling, Jörgen, van Geest, Marleen, Jevnikar, Zala, Wilson, Susan, Lutter, Rene, Shaw, Dominick E., Bakke, Per S., Caruso, Massimo, Dahlen, Sven-Erik, Fowler, Stephen J., Horváth, Ildikó, Krug, Norbert, Montuschi, Paolo, Sanak, Marek, Sandström, Thomas, Sun, Kai, Pandis, Ioannis, Auffray, Charles, Sousa, Ana R., Guo, Yike, Adcock, Ian M., Howarth, Peter, Chung, Kian Fan, Bigler, Jeanette, Sterk, Peter J., Skipp, Paul J., Djukanović, Ratko, and Vaarala, Outi

Published
2019
Full Text
View/download PDF

2. Stratification of asthma phenotypes by airway proteomic signatures

Author

Ahmed, H., Allen, D., Badorrek, P., Ballereau, S., Baribaud, F., Bedding, A., Behndig, A.F., Berglind, A., Berton, A., Bigler, J., Boedigheimer, M.J., Bønnelykke, K., Brinkman, P., Bush, A., Campagna, D., Casaulta, C., Chaiboonchoe, A., Davison, T., De Meulder, B., Delin, I., Dennison, P., Dodson, P., El Hadjam, L., Erzen, D., Faulenbach, C., Fichtner, K., Fitch, N., Formaggio, E., Gahlemann, M., Galffy, G., Garissi, D., Garret, T., Gent, J., Guillmant-Farry, E., Henriksson, E., Hoda, U., Hohlfeld, J.M., Hu, X., James, A., Johnson, K., Jullian, N., Kerry, G., Klüglich, M., Knowles, R., Konradsen, J.R., Kretsos, K., Krueger, L., Lantz, A.-S., Larminie, C., Latzin, P., Lefaudeux, D., Lemonnier, N., Lowe, L.A., Lutter, R., Manta, A., Mazein, A., McEvoy, L., Menzies-Gow, A., Mores, N., Murray, C.S., Nething, K., Nihlén, U., Niven, R., Nordlund, B., Nsubuga, S., Pellet, J., Pison, C., Praticò, G., Valls, M. Puig, Riemann, K., Rocha, J.P., Rossios, C., Santini, G., Saqi, M., Scott, S., Sehgal, N., Selby, A., Söderman, P., Sogbesan, A., Spycher, F., Stephan, S., Stokholm, J., Sunther, M., Szentkereszty, M., Tamasi, L., Tariq, K., Valente, S., van Aalderen, W.M., van Drunen, C.M., Van Eyll, J., Vyas, A., Yu, W., Zetterquist, W., Zolkipli, Z., Zwinderman, A.H., Schofield, James P.R., Burg, Dominic, Nicholas, Ben, Strazzeri, Fabio, Brandsma, Joost, Staykova, Doroteya, Folisi, Caterina, Bansal, Aruna T., Xian, Yang, Guo, Yike, Rowe, Anthony, Corfield, Julie, Wilson, Susan, Ward, Jonathan, Lutter, Rene, Shaw, Dominick E., Bakke, Per S., Caruso, Massimo, Dahlen, Sven-Erik, Fowler, Stephen J., Horváth, Ildikó, Howarth, Peter, Krug, Norbert, Montuschi, Paolo, Sanak, Marek, Sandström, Thomas, Sun, Kai, Pandis, Ioannis, Riley, John, Auffray, Charles, De Meulder, Bertrand, Lefaudeux, Diane, Sousa, Ana R., Adcock, Ian M., Chung, Kian Fan, Sterk, Peter J., Skipp, Paul J., and Djukanović, Ratko

Published
2019
Full Text
View/download PDF

3. Stratification of asthma phenotypes by airway proteomic signatures

Author

Schofield, James P. R., Burg, Dominic, Nicholas, Ben, Strazzeri, Fabio, Brandsma, Joost, Staykova, Doroteya, Folisi, Caterina, Bansal, Aruna T., Xian, Yang, Guo, Yike, Rowe, Anthony, Corfield, Julie, Wilson, Susan, Ward, Jonathan, Lutter, Rene, Shaw, Dominick E., Bakke, Per S., Caruso, Massimo, Dahlen, Sven-Erik, Fowler, Stephen J., Horvath, Ildiko, Howarth, Peter, Krug, Norbert, Montuschi, Paolo, Sanak, Marek, Sandstrom, Thomas, Sun, Kai, Pandis, Ioannis, Riley, John, Auffray, Charles, De Meulder, Bertrand, Lefaudeux, Diane, Sousa, Ana R., Adcock, Ian M., Chung, Kian Fan, Sterk, Peter J., Skipp, Paul J., Djukanovic, Ratko, Ahmed, H., Allen, D., Badorrek, P., Ballereau, S., Baribaud, F., Batuwitage, M. K., Bedding, A., Behndig, A. F., Berglind, A., Berton, A., Bigler, J., Boedigheimer, M. J., Bonnelykke, K., Brinkman, P., Bush, A., Campagna, D., Casaulta, C., Chaiboonchoe, A., Davison, T., De Meulder, B., Delin, I., Dennison, P., Dodson, P., El Hadjam, L., Erzen, D., Faulenbach, C., Fichtner, K., Fitch, N., Formaggio, E., Gahlemann, M., Galffy, G., Garissi, D., Garret, T., Gent, J., Guillmant-Farry, E., Henriksson, E., Hoda, U., Hohlfeld, J. M., Hu, X., James, A., Johnson, K., Jullian, N., Kerry, G., Klueglich, M., Knowles, R., Konradsen, J. R., Kretsos, K., Krueger, L., Lantz, A. -S, Larminie, C., Latzin, P., Lefaudeux, D., Lemonnier, N., Lowe, L. A., Lutter, R., Manta, A., Mazein, A., McEvoy, L., Menzies-Gow, A., Mores, N., Murray, C. S., Nething, K., Nihlen, U., Niven, R., Nordlund, B., Nsubuga, S., Pellet, J., Pison, C., Pratico, G., Puig Valls, M., Riemann, K., Rocha, J. P., Rossios, C., Santini, G., Saqi, M., Scott, S., Sehgal, N., Selby, A., Soderman, P., Sogbesan, A., Spycher, F., Stephan, S., Stokholm, J., Sunther, M., Szentkereszty, M., Tamasi, L., Tariq, K., Valente, S., van Aalderen, W. M., van Drunen, C. M., Van Eyll, J., Vyas, A., Yu, W., Zetterquist, W., Zolkipli, Z., Zwinderman, A. H., Adriaens, Nora, Aliprantis, Antonios, Alving, Kjell, Bakke, Per, Balgoma, David, Barber, Clair, Baribaud, Frederic, Bates, Stewart, Bautmans, An, Beleta, Jorge, Bochenek, Grazyna, Braun, Armin, Carayannopoulos, Leon, Rocha, Joao Pedro Carvalho da Purificacao, Chaleckis, Romanas, D'Amico, Arnaldo, De Alba, Jorge, De Lepeleire, Inge, Dekker, Tamara, Dijkhuis, Annemiek, Draper, Aleksandra, Edwards, Jessica, Emma, Rosalia, Ericsson, Magnus, Flood, Breda, Gallart, Hector, Gomez, Cristina, Gove, Kerry, Gozzard, Neil, Haughney, John, Hewitt, Lorraine, Hohlfeld, Jens, Holweg, Cecile, Hu, Richard, Hu, Sile, Kamphuis, Juliette, Kennington, Erika J., Kerry, Dyson, Knobel, Hugo, Kolmert, Johan, Kots, Maxim, Kuo, Scott, Kupczyk, Maciej, Lambrecht, Bart, Lone-Latif, Saeeda, Loza, Matthew J., Marouzet, Lisa, Martin, Jane, Masefield, Sarah, Mathon, Caroline, Meah, Sally, Meiser, Andrea, Metcalf, Leanne, Mikus, Maria, Miralpeix, Montse, Monk, Philip, Naz, Shama, Nilsson, Peter, Ostling, Jorgen, Pacino, Antonio, Palkonen, Susanna, Pavlidis, Stelios, Pennazza, Giorgio, Petren, Anne, Pink, Sandy, Postle, Anthony, Powell, Pippa, Rahman-Amin, Malayka, Rao, Navin, Ravanetti, Lara, Ray, Emma, Reinke, Stacey, Reynolds, Leanne, Robberechts, Martine, Roberts, Amanda, Russell, Kirsty, Rutgers, Michael, Santoninco, Marco, Schoelch, Corinna, Sjodin, Marcus, Smids, Barbara, Smith, Caroline, Smith, Jessica, Smith, Katherine M., Thorngren, John-Olof, Thornton, Bob, Thorsen, Jonathan, van de Pol, Marianne, van Geest, Marleen, Versnel, Jenny, Vink, Anton, Wald, Frans, Walker, Samantha, Weiszhart, Zsoka, Wetzel, Kristiane, Wheelock, Craig E., Wiegman, Coen, Williams, Sian, Wilson, Susan J., Woodcock, Ashley, Yang, Xian, Yeyasingham, Elizabeth, Prins, Jan-Bas, Gahlemann, Martina, Visintin, Luigi, Evans, Hazel, Puhl, Martine, Buzermaniene, Lina, Hudson, Val, Bond, Laura, de Boer, Pim, Widdershoven, Guy, Sigmund, Ralf, Supple, David, Hamerlijnck, Dominique, Negus, Jenny, Kamphuis, Julitte, Sergison, Lehanne, Onstein, Susanne, MacNee, William, Bernardini, Renato, Bont, Louis, Wecksell, Per-Ake, Graduate School, AII - Inflammatory diseases, Pulmonology, Ear, Nose and Throat, Epidemiology and Data Science, APH - Methodology, Publica, and Commission of the European Communities

Subjects
0301 basic medicine, Male, Proteomics, Allergy, Proteome, Neutrophils, Respiratory Medicine and Allergy, Transcriptome, 0302 clinical medicine, neutrophils, Forced Expiratory Volume, Immunology and Allergy, CD44, 610 Medicine & health, Lungmedicin och allergi, phenotypes, Middle Aged, medicine.anatomical_structure, Phenotype, 1107 Immunology, Female, eosinophils, medicine.symptom, Life Sciences & Biomedicine, Adult, Settore BIO/14 - FARMACOLOGIA, Immunology, Computational biology, 03 medical and health sciences, Young Adult, proteomics, Eosinophilia, medicine, Humans, U-BIOPRED Study Group, Asthma, Aged, Science & Technology, Microarray analysis techniques, business.industry, Sputum, biomarkers, DEGRADATION, Eosinophil, medicine.disease, Eosinophils, EXACERBATIONS, 030104 developmental biology, 030228 respiratory system, business
Abstract

Background: Stratification by eosinophil and neutrophil counts increases our understanding of asthma and helps target therapy, but there is room for improvement in our accuracy in prediction of treatment responses and a need for better understanding of the underlying mechanisms. Objective: We sought to identify molecular subphenotypes of asthma defined by proteomic signatures for improved stratification. Methods: Unbiased label-free quantitative mass spectrometry and topological data analysis were used to analyze the proteomes of sputum supernatants from 246 participants (206 asthmatic patients) as a novel means of asthma stratification. Microarray analysis of sputum cells provided transcriptomics data additionally to inform on underlying mechanisms. Results: Analysis of the sputum proteome resulted in 10 clusters (ie, proteotypes) based on similarity in proteomic features, representing discrete molecular subphenotypes of asthma. Overlaying granulocyte counts onto the 10 clusters as metadata further defined 3 of these as highly eosinophilic, 3 as highly neutrophilic, and 2 as highly atopic with relatively low granulocytic inflammation. For each of these 3 phenotypes, logistic regression analysis identified candidate protein biomarkers, and matched transcriptomic data pointed to differentially activated underlying mechanisms. Conclusion: This study provides further stratification of asthma currently classified based on quantification of granulocytic inflammation and provided additional insight into their underlying mechanisms, which could become targets for novel therapies. asthma proteomics biomarkers eosinophils neutrophils

Published
2019

4. Epithelial dysregulation in obese severe asthmatics with gastro-oesophageal reflux

Author

Perotin, Jeanne-Marie, Schofield, James PR, Wilson, Susan J, Ward, Jonathan, Brandsma, Joost, Strazzeri, Fabio, Bansal, Aruna, Yang, Xian, Rowe, Anthony, Corfield, Julie, Lutter, Rene, Shaw, Dominick E, Bakke, Per S, Caruso, Massimo, Dahlen, Barbro, Fowler, Stephen J, Horvath, Ildiko, Howarth, Peter, Krug, Norbert, Montuschi, Paolo, Sanak, Marek, Sandstrom, Thomas, Sun, Kai, Pandis, Ioannis, Auffray, Charles, De Meulder, Bertrand, Lefaudeux, Diane, Riley, John H, Sousa, Ana R, Dahlen, Sven-Erik, Adcock, Ian M, Chung, Kian Fan, Sterk, Peter J, Skipp, Paul J, Collins, Jane E, Davies, Donna E, Djukanovic, Ratko, Adcock, IM, Ahmed, H, Auffray, C, Bakke, P, Banssal, AT, Baribaud, F, Bates, S, Bel, EH, Bigler, J, Bisgaard, H, Boedigheimer, MJ, Bonnelykke, K, Brandsma, J, Brinkman, P, Bucchioni, E, Burg, D, Bush, A, Caruso, M, Chaiboonchoe, A, Chanez, P, Chung, KF, Compton, CH, Corfield, J, D'Amico, A, Dahlen, SE, De Meulder, B, Djukanovic, R, Erpenbeck, VJ, Erzen, D, Fichtner, K, Fitch, N, Fleming, LJ, Formaggio, E, Fowler, SJ, Frey, U, Gahlemann, M, Geiser, T, Guo, Y, Hashimoto, S, Haughney, J, Hedlin, G, Hekking, PW, Higenbottam, T, Hohlfeld, JM, Holweg, C, Horvath, I, Howarth, P, James, AJ, Knowles, R, Knox, AJ, Krug, N, Lefaudeux, D, Loza, MJ, Lutter, R, Manta, A, Masefield, S, Matthews, JG, Mazein, A, Meiser, A, Middelveld, RJM, Miralpeix, M, Montuschi, P, Mores, N, Murray, CS, Musial, J, Myles, D, Pahus, L, Pandis, I, Pavlidis, S, Powell, P, Pratico, G, Puig Valls, M, Rao, N, Riley, J, Roberts, A, Roberts, G., Rowe, A, Sandstrom, T, Seibold, W, Selby, A, Shaw, DE, Sigmund, R, Singer, F, Skipp, PJ, Sousa, AR, Sterk, PJ, Sun, K, Thornton, B, van Aalderen, WM, van Geest, M, Vestbo, J, Vissing, NH, Wagener, AH, Wagers, SS, Weiszhart, Z, Wheelock, CE, Wilson, SJ, Aliprantis, Antonios, Allen, David, Alving, Kjell, Badorrek, P, Balgoma, David, Ballereau, S, Barber, Clair, Batuwitage, Manohara Kanangana, Bautmans, An, Bedding, A, Behndig, AF, Beleta, Jorge, Berglind, A, Berton, A, Bochenek, G, Braun, A, Campagna, D, Carayannopoulos, L, Casaulta, C, Chaleckis, Romanas, Dahlen, B, Davison, T, De Alba, J, De Lepeleire, I, Dekker, T, Delin, I, Dennison, P, Dijkhuis, A, Dodson, P, Dyson, K, Edwards, J, El Hadjam, L, Emma, R, Ericsson, M, Faulenbach, C, Flood, Breda, Galffy, G, Gallart, H, Garissi, D, Gent, J., Gerhardsson de Verdier, M, Gibeon, D, Gomez, Cristina, Gove, K, Guillmant-Farry, E, Henriksson, E, Hewitt, L, Hoda, U, Hu, Richard, Hu, S, Hu, X, Jeyasingham, E, Johnson, K, Jullian, N, Kamphuis, J, Kennington, EJ, Kerry, D, Kerry, G, Klueglich, M, Knobel, H, Kolmert, Johan, Konradsen, JR, Kots, M, Kretsos, Kosmas, Krueger, L, Kuo, S, Kupczyk, M, Lambrecht, Bart, Lantz, A-S, Larminie, Christopher, Larsson, LX, Latzin, P, Lazarinis, N, Lemonnier, N, Lone-Latif, S, Lowe, LA, Marouzet, L, Martin, J, Mathon, C, McEvoy, L, Meah, S, Menzies-Gow, A, Metcalf, L, Mikus, M, Monk, P, Naz, S, Nething, K, Nicholas, B, Nihlen, U, Nilsson, Peter, Niven, R, Nordlund, B, Nsubuga, S, Ostling, J, Pacino, A, Palkonen, S, Pellet, J, Pennazza, G, Petren, A, Pink, S, Pison, C, Postle, A, Rahman-Amin, M, Ravanetti, L, Ray, E, Reinke, S, Reynolds, L, Riemann, K, Robberechts, Martine, Rocha, JP, Rossios, C, Russell, K, Rutgers, M, Santini, G, Santoninco, M, Saqi, M, Schoelch, C, Schofield, JPR, Scott, S, Sehgal, N, Sjodin, M, Smids, B, Smith, Caroline, Smith, J, Smith, KM, Soderman, P, Sogbessan, A, Spycher, F, Staykova, D, Stephan, S, Stokholm, J, Strandberg, K, Sunther, M, Szentkereszty, M, Tamasi, L, Tariq, K, Thorngren, J-O, Thorsen, Jonathan, Valente, S, van de Pol, Marianne, van Drunen, CM, Van Eyll, J, Versnel, J, Vink, A, von Garnier, C, Vyas, A, Wald, F, Walker, S, Ward, J, Wetzel, K, Wiegman, C, Williams, S, Yang, X, Yeyasingham, E, Yu, W, Zetterquist, W, Zolkipli, Z, Zwinderman, AH, Prins, J-B, Visintin, L, Evans, H, Puhl, M, Buzermaniene, L, Hudson, V, Bond, L, de Boer, P, Widdershoven, G, Supple, D, Hamerlijnck, D, Negus, J, Sergison, L, Onstein, S, MacNee, W, Bernardini, R, Bont, Louis, Wecksell, P-A, Draper, Aleksandra, Gozzard, Neil, Commission of the European Communities, Publica, Pulmonology, AII - Inflammatory diseases, Ear, Nose and Throat, Epidemiology and Data Science, APH - Methodology, and NIHR Southampton Biomedical Research Centre

Subjects
severe asthma, Pulmonary and Respiratory Medicine, endotyping, Gastrointestinal, phenotyping, Settore BIO/14 - FARMACOLOGIA, [SDV]Life Sciences [q-bio], Respiratory System, ROWE, Gene Expression, Article, Endoscopy, Gastrointestinal, Epithelium, CCN Intercellular Signaling Proteins, Patent application, 03 medical and health sciences, 0302 clinical medicine, Shareholder, gatroesophageal reflux, Nothing, Proto-Oncogene Proteins, Medicine and Health Sciences, Humans, Medicine, Obesity, 030212 general & internal medicine, ComputingMilieux_MISCELLANEOUS, 11 Medical and Health Sciences, U-BIOPRED Study Group, Science & Technology, business.industry, U-BIOPRED, digestive, oral, and skin physiology, Airway inflammation, Conflict of interest, Biology and Life Sciences, Endoscopy, Asthma, digestive system diseases, 3. Good health, 030228 respiratory system, Spin out, Case-Control Studies, Law, Honorarium, Gastroesophageal Reflux, business, Life Sciences & Biomedicine
Abstract

Gastro-oesophageal reflux disease (GORD) and obesity are associated with frequent exacerbations and poor quality of life in asthmatics. Multiple mechanisms have been proposed for the effect of obesity, including modification of inflammation affecting epithelial cell proliferation and wound repair, while the role of GORD is poorly understood and proton pump inhibitor (PPI) are of variable efficacy. GORD might exert a deleterious effect by inducing vagal reflex, neuroinflammation and directly ( via microaspiration) triggering airway inflammation. Studies of reflux in animal models and human bronchial epithelial cell culture show varying impact on inflammation and airway remodelling. Footnotes This manuscript has recently been accepted for publication in the European Respiratory Journal . It is published here in its accepted form prior to copyediting and typesetting by our production team. After these production processes are complete and the authors have approved the resulting proofs, the article will move to the latest issue of the ERJ online. Please open or download the PDF to view this article. Conflict of interest: Dr PEROTIN has nothing to disclose. Conflict of interest: Dr Schofield has nothing to disclose. Conflict of interest: Dr Wilson has nothing to disclose. Conflict of interest: Dr Ward has nothing to disclose. Conflict of interest: Dr Brandsma has nothing to disclose. Conflict of interest: Dr Strazzeri has nothing to disclose. Conflict of interest: Dr Bansal has nothing to disclose. Conflict of interest: Dr Yang has nothing to disclose. Conflict of interest: Dr Rowe reports and a full time employee and shareholder of Janssen Pharmaceutical Companies of Johnson and Johnson. Conflict of interest: Miss Corfield has nothing to disclose. Conflict of interest: Dr Lutter has nothing to disclose. Conflict of interest: Prof. Shaw reports personal fees and non-financial support from AstraZeneca, personal fees from Boehringer Ingelheim, personal fees from Novartis, personal fees from Teva, personal fees from Circassia, and a grant from GSK, outside the submitted work. Conflict of interest: Dr Bakke reports personal fees from GSK, AZ, Novartis andTeva, outside the submitted work. Conflict of interest: MC have no conflict of interest to disclose. Conflict of interest: Dr Dahlen has nothing to disclose. Conflict of interest: Dr Fowler reports personal fees and non-financial support from AstraZeneca, grants and personal fees from Boehringer Ingelheim, personal fees from Novartis, personal fees from Teva, outside the submitted work. Conflict of interest: Dr Horvath reports personal fees from Astra Zeneca, Boehringer Ingelheim, Novartis, CSL, Chiesi, Roche, GSK, Berlin-Chemie and Sandoz, outside the submitted work. Conflict of interest: Dr Howarth reports personal fees from GSK, outside the submitted work. Conflict of interest: Dr Krug has nothing to disclose. Conflict of interest: Dr Montuschi has nothing to disclose. Conflict of interest: Dr Sanak has nothing to disclose. Conflict of interest: Dr Sandstrom reports other monetary support from Boehringer Ingelheim, outside the submitted work. Conflict of interest: Dr Sun has nothing to disclose. Conflict of interest: Dr Pandis has nothing to disclose. Conflict of interest: Dr Auffray reports grants from Innovative Medicine Initiative, during the conduct of the study. Conflict of interest: Dr De Meulder reports grants from Innovative Medicine Initiative, during the conduct of the study. Conflict of interest: Ms. Lefaudeux reports grants from Innovative Medicine Initiative, grants from Innovative Medicine Initiative, during the conduct of the study. Conflict of interest: Dr Riley reports and I have shares in and I am employed by GSK. Conflict of interest: Dr Sousa has nothing to disclose. Conflict of interest: Dr Dahlen has nothing to disclose. Conflict of interest: Dr Adcock reports grants from EU-IMI, during the conduct of the study. Conflict of interest: KFC has received honoraria for participating in Advisory Board meetings of GSK, AZ, BI, Teva, Novartis and Merck regarding treatments for asthma and chronic obstructive pulmonary disease and has also been renumerated for speaking engagements. Conflict of interest: Dr Sterk reports grants from Innovative Medicines Initiative, during the conduct of the study. Conflict of interest: Dr Skipp has nothing to disclose. Conflict of interest: Dr Collins reports a patent application for use of a genetically modified Drosophila line carrying one or more mammalian genes associated with a chronic respiratory disease and uses to screen the impact of such genes. Conflict of interest: Dr Davies has nothing to disclose. Conflict of interest: Dr Djukanovic reports receiving fees for lectures at symposia organised by Novartis, AstraZeneca and TEVA, consultation for TEVA and Novartis as member of advisory boards, and participation in a scientific discussion about asthma organised by GlaxoSmithKline. He is a co-founder and current consultant, and has shares in Synairgen, a University of Southampton spin out company.

Published
2019

5. A computational framework for complex disease stratification from multiple large-scale datasets

Author

De Meulder, B., Lefaudeux, D., Bansal, A. T., Mazein, A., Chaiboonchoe, A., Ahmed, H., Balaur, I., Saqi, M., Pellet, J., Ballereau, S., Lemonnier, N., Sun, K., Pandis, I., Yang, X., Batuwitage, M., Kretsos, K., van Eyll, J., Bedding, A., Davison, T., Dodson, P., Larminie, C., Postle, A., Corfield, J., Djukanovic, R., Chung, K. F., Adcock, I. M., Guo, Y. -K., Sterk, P. J., Manta, A., Rowe, A., Baribaud, F., Auffray, C., Gibeon, D., Hoda, U., Kuo, S., Meah, S., Meiser, A., Fleming, L. J., Hu, S., Pavlidis, S., Rossios, C., Russel, K., Wiegman, C., Nezhad, A. T., Oehmichen, A., O'Malley, D., Guitton, F., Emam, I., Agapow, P., Rice, P., Miles, S., Elyasigomari, V., Bel, E., Brinkman, P., Dekker, T., Dijkhuis, A., Hashimoto, S., Hekking, P. -P., Lone-Latif, S., Lutter, R., Ravanetti, L., Smids, B., van Aalderen, W., van de Pol, M., van Drunen, K., van Drunen, M., Wagener, A., Zwinderman, K., Adriaens, N., Carusi, A. M., Richard, F., Nogueira, M. M., Taibi, N., Brasier, O., Aliprantis, A., Alving, K., Faulenbach, C., Braun, A., Hohlfeld, J., Krug, N., Badorrek, P., Bakke, P., Berglind, A., Chaleckis, R., Dahlen, B., Delin, I., Gallart, H., Gomez, C., Hedlin, G., Henriksson, E., James, A. J., Kolmert, J., Konradsen, J., Kupczyk, M., Lantz, A. -S., Lazarinis, L., Mathon, C., Middelveld, R., Naz, S., Nordlund, B., Petren, A., Reinke, S., Sjodin, M., Soderman, P., Strandberg, K., Wheelock, C. E., Zetterquist, W., Balgoma, D., Brandsma, J., Burg, D., Dennison, P., Nicholas, B., Schofield, J. P. R., Skipp, P. J., Staykova, D., Tariq, K., Ward, J., Wilson, S. J., Barber, C., Loza, M. J., Bautmans, A., Sandstrom, T., Behndig, A. F., De Alba, J., Beleta, J., Berton, A., de Verdier, M. G., Nihlen, U., Ostling, J., Dalentoft, T., Lindgren, E., Boedigheimer, M. J., Hu, R., Hu, X., Yu, W., Bigler, J., Bonnelykke, K., Thorsen, J., Vising, N., Bisgaard, H., Bochenek, G., Caruso, M., Emma, R., Campagna, D., Thornton, B., Carayannopoulos, L., Gent, J., Manzies-Gow, A., Sogbesan, A., da Purificacao Rocha, P. C., Pedro, J., Chanez, P., Edwards, J., Flood, B., Hudson, V., Kennington, E. J., Metcalf, L., Rahman-Amin, M., Reynolds, L., Roberts, A., Smith, J., Supple, D., Versnel, J., Walker, S., Coleman, C., Hasan, S., Compton, C., Myles, D., Riley, J., Sousa, A. R., Yeyasingham, E., Pennazza, G., Santoninco, M., D'Amico, A., Dahlen, S. -E., de Boer, P., Robberechts, M., De Lepeleire, I., Fitch, N., Garret, T., Wagers, S., Draper, A., Thorngren, J. -O., Ericsson, M., Erpenbeck, V., Kluglich, M., Nething, K., Riemann, K., Schoelch, C., Seibold, W., Sigmund, R., Wald, F., Wetzel, K., Fichtner, K., Erzen, D., Galffy, G., Horvath, I., Szentkereszty, M., Tamasi, L., Fowler, S. J., Krueger, L., Singer, F., Frey, U., Gahlemann, M., Geiser, T., Hewitt, L., Howarth, P., Marouzet, L., Martin, J., Pink, S., Ray, E., Roberts, G., Smith, C., Gove, K., Gozzard, N., Williams, S., Haughney, J., Higgenbottam, T., Matthews, J. G., Holweg, C., Rutgers, M., Kamphuis, J., Kerry, D., Vink, A., Knobel, H., Knowles, R., Shaw, D. E., Smith, K. M., Know, A., Kots, M., Lambrecht, B., Masefield, S., Nilsson, P., Mikus, M., Miralpeix, M., Monk, P., Mores, N., Valente, S., Montuschi, P., Murray, C. S., Musial, J., Pacino, A., Pahus, L., Palkonen, S., Powel, P., Rao, N., Santini, G., Vestbo, J., von Garnier, C., Weiszhart, Z., Woodcock, A., Biryukov, M., Schneider, R., Herzinger, S., Satagopam, V., Gu, W., da Silva, A. B., Tielmann, A., Bergeron, J., Gaudette, A., Silberberg, A., Henderson, D., Hayat, S., Elefsinioti, A., Moltzen, E. K., Harbo, I. S., Birgitte, J., Bratfalean, D., Houston, P., Kisler, B., Capdevila, F. B., Verbeeck, D., Marchetti, G., Rahal, G., Schuermann, H. D., Mazuranok, L., Hendlich, M., Painell'S, L., Marren, D., Martasek, J., Rimell, J., Romacker, M., Braxenthaler, M., Sansone, S. -A., Rocca-Serra, P., Commission of the European Communities, Pulmonology, Graduate School, Experimental Immunology, Paediatric Pulmonology, Ear, Nose and Throat, Epidemiology and Data Science, APH - Methodology, ARD - Amsterdam Reproduction and Development, Consortium, U-Biopred Study Group And The Etriks, Rocca-Serra, P, Sansone, S, De Meulder, Bertrand [0000-0002-2108-7657], and Apollo - University of Cambridge Repository

Subjects
Quality Control, 0301 basic medicine, Computer science, Bioinformatics, Systems biology, Big data, Environmental data, Machine Learning, Set (abstract data type), 03 medical and health sciences, Structural Biology, Modelling and Simulation, Cluster Analysis, U-BIOPRED Study Group and the eTRIKS Consortium, Disease, False Positive Reactions, Cluster analysis, Molecular signatures, Molecular Biology, lcsh:QH301-705.5, ‘Omics data, 'Omics data, business.industry, Systems Biology, Applied Mathematics, 1199 Other Medical And Health Sciences, Data science, 3. Good health, Computer Science Applications, Systems medicine, 030104 developmental biology, lcsh:Biology (General), Feature (computer vision), Modeling and Simulation, Stratification, Scale (map), business, Biomarkers, Research Article
Abstract

Background Multilevel data integration is becoming a major area of research in systems biology. Within this area, multi-‘omics datasets on complex diseases are becoming more readily available and there is a need to set standards and good practices for integrated analysis of biological, clinical and environmental data. We present a framework to plan and generate single and multi-‘omics signatures of disease states. Methods The framework is divided into four major steps: dataset subsetting, feature filtering, ‘omics-based clustering and biomarker identification. Results We illustrate the usefulness of this framework by identifying potential patient clusters based on integrated multi-‘omics signatures in a publicly available ovarian cystadenocarcinoma dataset. The analysis generated a higher number of stable and clinically relevant clusters than previously reported, and enabled the generation of predictive models of patient outcomes. Conclusions This framework will help health researchers plan and perform multi-‘omics big data analyses to generate hypotheses and make sense of their rich, diverse and ever growing datasets, to enable implementation of translational P4 medicine. Electronic supplementary material The online version of this article (10.1186/s12918-018-0556-z) contains supplementary material, which is available to authorized users.

Published
2018

6. IL-17–high asthma with features of a psoriasis immunophenotype

Author

Östling, Jörgen, primary, van Geest, Marleen, additional, Schofield, James P.R., additional, Jevnikar, Zala, additional, Wilson, Susan, additional, Ward, Jonathan, additional, Lutter, Rene, additional, Shaw, Dominick E., additional, Bakke, Per S., additional, Caruso, Massimo, additional, Dahlen, Sven-Erik, additional, Fowler, Stephen J., additional, Horváth, Ildikó, additional, Krug, Norbert, additional, Montuschi, Paolo, additional, Sanak, Marek, additional, Sandström, Thomas, additional, Sun, Kai, additional, Pandis, Ioannis, additional, Auffray, Charles, additional, Sousa, Ana R., additional, Guo, Yike, additional, Adcock, Ian M., additional, Howarth, Peter, additional, Chung, Kian Fan, additional, Bigler, Jeanette, additional, Sterk, Peter J., additional, Skipp, Paul J., additional, Djukanović, Ratko, additional, Vaarala, Outi, additional, Adcock, I.M., additional, Ahmed, H., additional, Auffray, C., additional, Bakke, P., additional, Bansal, A.T., additional, Baribaud, F., additional, Bates, S., additional, Bel, E.H., additional, Bigler, J., additional, Bisgaard, H., additional, Boedigheimer, M.J., additional, Bønnelykke, K., additional, Brandsma, J., additional, Brinkman, P., additional, Bucchioni, E., additional, Burg, D., additional, Bush, A., additional, Caruso, M., additional, Chaiboonchoe, A., additional, Chanez, P., additional, Chung, K.F., additional, Compton, C.H., additional, Corfield, J., additional, D'Amico, A., additional, Dahlen, S.E., additional, De Meulder, B., additional, Djukanovic, R., additional, Erpenbeck, V.J., additional, Erzen, D., additional, Fichtner, K., additional, Fitch, N., additional, Fleming, L.J., additional, Formaggio, E., additional, Fowler, S.J., additional, Frey, U., additional, Gahlemann, M., additional, Geiser, T., additional, Guo, Y., additional, Hashimoto, S., additional, Haughney, J., additional, Hedlin, G., additional, Hekking, P.W., additional, Higenbottam, T., additional, Hohlfeld, J.M., additional, Holweg, C., additional, Horváth, I., additional, Howarth, P., additional, James, A.J., additional, Knowles, R., additional, Knox, A.J., additional, Krug, N., additional, Lefaudeux, D., additional, Loza, M.J., additional, Lutter, R., additional, Manta, A., additional, Masefield, S., additional, Mazein, A., additional, Meiser, A., additional, Middelveld, R.J.M., additional, Miralpeix, M., additional, Montuschi, P., additional, Mores, N., additional, Murray, C.S., additional, Musial, J., additional, Myles, D., additional, Pahus, L., additional, Pandis, I., additional, Pavlidis, S., additional, Powell, P., additional, Praticò, G., additional, Rao, M. Puig N., additional, Riley, J., additional, Roberts, A., additional, Roberts, G., additional, Rowe, A., additional, Sandström, T., additional, Seibold, W., additional, Selby, A., additional, Shaw, D.E., additional, Sigmund, R., additional, Singer, F., additional, Skipp, P.J., additional, Sousa, A.R., additional, Sterk, P.J., additional, Sun, K., additional, Thornton, B., additional, van Aalderen, W.M., additional, van Geest, M., additional, Vestbo, J., additional, Vissing, N.H., additional, Wagener, A.H., additional, Wagers, S.S., additional, Weiszhart, Z., additional, Wheelock, C.E., additional, Wilson, S.J., additional, Aliprantis, Antonios, additional, Allen, David, additional, Alving, Kjell, additional, Badorrek, P., additional, Balgoma, David, additional, Ballereau, S., additional, Barber, Clair, additional, Batuwitage, Manohara Kanangana, additional, Bautmans, A., additional, Bedding, A., additional, Behndig, A.F., additional, Beleta, Jorge, additional, Berglind, A., additional, Berton, A., additional, Bochenek, Grazyna, additional, Braun, Armin, additional, Campagna, D., additional, Carayannopoulos, Leon, additional, Casaulta, C., additional, Chaleckis, Romanas, additional, Dahlén, B., additional, Davison, imothy, additional, De Alba, Jorge, additional, De Lepeleire, Inge, additional, Dekker, Tamara, additional, Delin, Ingrid, additional, Dennison, P., additional, Dijkhuis, Annemiek, additional, Dodson, Paul, additional, Draper, Aleksandra, additional, Dyson, K., additional, Edwards, Jessica, additional, El Hadjam, L., additional, Emma, Rosalia, additional, Ericsson, Magnus, additional, Faulenbach, C., additional, Flood, Breda, additional, Galffy, G., additional, Gallart, Hector, additional, Garissi, D., additional, Gent, J., additional, Gerhardsson de Verdier, M., additional, Gibeon, D., additional, Gomez, Cristina, additional, Gove, Kerry, additional, Gozzard, Neil, additional, Guillmant-Farry, E., additional, Henriksson, E., additional, Hewitt, Lorraine, additional, Hoda, U., additional, Hu, Richard, additional, Hu, Sile, additional, Hu, X., additional, Jeyasingham, E., additional, Johnson, K., additional, Jullian, N., additional, Kamphuis, Juliette, additional, Kennington, Erika J., additional, Kerry, Dyson, additional, Kerry, G., additional, Klüglich, M., additional, Knobel, Hugo, additional, Kolmert, Johan, additional, Konradsen, J.R., additional, Kots, Maxim, additional, Kretsos, Kosmas, additional, Krueger, L., additional, Kuo, Scott, additional, Kupczyk, Maciej, additional, Lambrecht, Bart, additional, Lantz, A.-S., additional, Larminie, Christopher, additional, Larsson, L.X., additional, Latzin, P., additional, Lazarinis, N., additional, Lemonnier, N., additional, Lone-Latif, Saeeda, additional, Lowe, L.A., additional, Manta, Alexander, additional, Marouzet, Lisa, additional, Martin, Jane, additional, Mathon, Caroline, additional, McEvoy, L., additional, Meah, Sally, additional, Menzies-Gow, A., additional, Metcalf, Leanne, additional, Mikus, Maria, additional, Monk, Philip, additional, Naz, Shama, additional, Nething, K., additional, Nicholas, Ben, additional, Nihlén, U., additional, Nilsson, Peter, additional, Niven, R., additional, Nordlund, B., additional, Nsubuga, S., additional, Pacino, Antonio, additional, Palkonen, Susanna, additional, Pellet, J., additional, Pennazza, Giorgio, additional, Petrén, Anne, additional, Pink, Sandy, additional, Pison, C., additional, Postle, Anthony, additional, Rahman-Amin, Malayka, additional, Ravanetti, Lara, additional, Ray, Emma, additional, Reinke, Stacey, additional, Reynolds, Leanne, additional, Riemann, K., additional, Robberechts, Martine, additional, Rocha, J.P., additional, Rossios, C., additional, Russell, Kirsty, additional, Rutgers, Michael, additional, Santini, G., additional, Santoninco, Marco, additional, Saqi, M., additional, Schoelch, Corinna, additional, Scott, S., additional, Sehgal, N., additional, Sjödin, Marcus, additional, Smids, Barbara, additional, Smith, Caroline, additional, Smith, Jessica, additional, Smith, Katherine M., additional, Söderman, P., additional, Sogbessan, A., additional, Spycher, F., additional, Staykova, Doroteya, additional, Stephan, S., additional, Stokholm, J., additional, Strandberg, K., additional, Sunther, M., additional, Szentkereszty, M., additional, Tamasi, L., additional, Tariq, K., additional, Thörngren, John-Olof, additional, Thorsen, Jonathan, additional, Valente, S., additional, van de Pol, Marianne, additional, van Drunen, C.M., additional, Van Eyll, Jonathan, additional, Versnel, Jenny, additional, Vink, Anton, additional, von Garnier, C., additional, Vyas, A., additional, Wald, Frans, additional, Walker, Samantha, additional, Wetzel, Kristiane, additional, Wiegman, Coen, additional, Williams, Siân, additional, Yang, Xian, additional, Yeyasingham, Elizabeth, additional, Amgen, W. Yu, additional, Zetterquist, W., additional, Zolkipli, Z., additional, and Zwinderman, A.H., additional

Published
2019
Full Text
View/download PDF

11. ERNICA Consensus Conference on the Management of Patients with Long-Gap Esophageal Atresia: Perioperative, Surgical, and Long-Term Management.

Author

Dingemann C, Eaton S, Aksnes G, Bagolan P, Cross KM, De Coppi P, Fruithof J, Gamba P, Goldschmidt I, Gottrand F, Pirr S, Rasmussen L, Sfeir R, Slater G, Suominen J, Svensson JF, Thorup JM, Tytgat SHAJ, van der Zee DC, Wessel L, Widenmann-Grolig A, Wijnen R, Zetterquist W, and Ure BM

Subjects
Aftercare standards, Esophageal Atresia diagnosis, Esophageal Atresia pathology, Esophagoplasty standards, Humans, Infant, Newborn, Perioperative Care standards, Treatment Outcome, Aftercare methods, Esophageal Atresia surgery, Esophagoplasty methods, Perioperative Care methods
Abstract

Introduction:  Evidence supporting best practice for long-gap esophageal atresia is limited. The European Reference Network for Rare Inherited Congenital Anomalies (ERNICA) organized a consensus conference on the management of patients with long-gap esophageal atresia based on expert opinion referring to the latest literature aiming to provide clear and uniform statements in this respect., Materials and Methods:  Twenty-four ERNICA representatives from nine European countries participated. The conference was prepared by item generation, item prioritization by online survey, formulation of a final list containing items on perioperative, surgical, and long-term management, and literature review. The 2-day conference was held in Berlin in November 2019. Anonymous voting was conducted via an internet-based system using a 1 to 9 scale. Consensus was defined as ≥75% of those voting scoring 6 to 9., Results:  Ninety-seven items were generated. Complete consensus (100%) was achieved on 56 items (58%), e.g., avoidance of a cervical esophagostomy, promotion of sham feeding, details of delayed anastomosis, thoracoscopic pouch mobilization and placement of traction sutures as novel technique, replacement techniques, and follow-up. Consensus ≥75% was achieved on 90 items (93%), e.g., definition of long gap, routine pyloroplasty in gastric transposition, and avoidance of preoperative bougienage to enable delayed anastomosis. Nineteen items (20%), e.g., methods of gap measurement were discussed controversially (range 1-9)., Conclusion:  This is the first consensus conference on the perioperative, surgical, and long-term management of patients with long-gap esophageal atresia. Substantial statements regarding esophageal reconstruction or replacement and follow-up were formulated which may contribute to improve patient care., Competing Interests: None declared., (Thieme. All rights reserved.)

Published
2021
Full Text
View/download PDF

12. Oral bacteria--the missing link to ambiguous findings of exhaled nitrogen oxides in cystic fibrosis.

Author

Zetterquist W, Marteus H, Kalm-Stephens P, Näs E, Nordvall L, Johannesson M, and Alving K

Subjects
Adolescent, Adult, Breath Tests methods, Child, Chlorhexidine, Cystic Fibrosis microbiology, Cystic Fibrosis physiopathology, Exhalation, Female, Forced Expiratory Volume physiology, Humans, Male, Mouthwashes, Young Adult, Bacteria metabolism, Cystic Fibrosis metabolism, Nitrates metabolism, Nitric Oxide metabolism, Nitrites metabolism, Saliva metabolism
Abstract

Background: Nitrite in exhaled breath condensate (EBC) has been shown to be elevated in cystic fibrosis (CF), while exhaled nitric oxide (FENO) is paradoxically low. This has been argued to reflect increased metabolism of NO while its diffusion is obstructed by mucus. However, we wanted to study the possible influence of salivary nitrite and bacterial nitrate reduction on these parameters in CF patients by the intervention of an anti-bacterial mouthwash., Methods: EBC and saliva were collected from 15 CF patients (10-43 years) and 15 controls (9-44 years) before and 5 min after a 30s chlorhexidine mouthwash, in parallel with measurements of FENO. Nitrite and nitrate concentrations were measured fluorometrically., Results: EBC nitrite, but not nitrate, was significantly higher in the CF patients (median 3.6 vs 1.3 microM in controls, p<0.05) and decreased after mouthwash in both groups (3.6-1.4 microM, p<0.01; 1.3-0.5 microM, p<0.01). Salivary nitrite correlated significantly to EBC nitrite (r=0.60, p<0.001) and decreased correspondingly after chlorhexidine, whereas salivary nitrate increased. FENO was lower in CF and the difference between patients and controls was accentuated after mouthwash (5.4 vs 8.4 ppb in controls, p<0.05)., Conclusion: EBC nitrite mainly originates in the pharyngo-oral tract and its increase in CF is possibly explained by a regional change in bacterial activity. The limited lower airway contribution supports the view of a genuinely impaired formation and metabolism of NO in CF, rather than poor diffusion of the molecule.

Published
2009
Full Text
View/download PDF

13. Increased exhaled nitrite in children with allergic asthma is not related to nitric oxide formation.

Author

Zetterquist W, Marteus H, Hedlin G, and Alving K

Subjects
Adolescent, Asthma diagnosis, Asthma metabolism, Breath Tests, Bronchial Provocation Tests, Case-Control Studies, Child, Cohort Studies, Eosinophils metabolism, Exhalation, Female, Humans, Inflammation Mediators blood, Male, Methacholine Chloride, Probability, Reference Values, Sensitivity and Specificity, Severity of Illness Index, Spirometry, Statistics, Nonparametric, Asthma immunology, Nitric Oxide analysis, Nitrites analysis
Abstract

Introduction: Nitrite sampled from the upper airways could originate from inflammation-induced nitric oxide (NO), as reports of elevated nitrite in exhaled breath condensate (EBC) from asthmatics suggest, but also through bacterial action in the pharyngo-oral tract., Objectives: To correlate EBC nitrite and nitrate to exhaled NO (FENO, fraction of expired NO) and other markers of disease activity in children with allergic asthma and thereby further investigate their role and origin., Materials and Methods: EBC was collected from 27 asthmatic subjects (ages 6-17 years, all immunoglobulin E-positive for aeroallergens) and 21 age-matched non-atopic healthy controls for fluorometric analysis of nitrite and nitrate. These markers were compared with measurements of FENO, blood eosinophil count (EOS), methacholine reactivity (PD(20)) and baseline spirometry., Results: EBC nitrite, in contrast to nitrate, was significantly increased (P < 0.01) in the asthmatic children. They also had increased levels of FENO (P < 0.001) and EOS (P < 0.001) along with decreased PD(20) (P < 0.001) and FEV1/FVC (P < 0.01). However, there was no correlation between EBC nitrite and FENO (r = 0.05) or any other marker of disease activity in the asthmatic children, whereas between the other markers correlations could be established., Conclusion: EBC nitrite is elevated in childhood asthma but the lack of correlation to FENO and other markers, together with simultaneously normal levels of nitrate, make its origin as a metabolite of inflammation-induced NO questionable.

Published
2008
Full Text
View/download PDF

14. Evaluation of exhaled nitric oxide in schoolchildren at different exhalation flow rates.

Author

Pedroletti C, Zetterquist W, Nordvall L, and Alving K

Subjects
Adolescent, Child, Female, Humans, Hypersensitivity, Immediate, Male, Reference Standards, Reproducibility of Results, Sweden, Asthma physiopathology, Breath Tests, Nitric Oxide, Pulmonary Ventilation
Abstract

Nitric oxide (NO) in exhaled air is believed to reflect allergic inflammation in the airways. Measured levels of exhaled NO vary with the exhaled flow rate, which therefore must be standardized. The aim of this study was to estimate the optimal exhalation flow rate when measuring NO in exhaled air. We studied 15 asthmatic children (8-18 y) with elevated NO levels and 15 age-matched controls and focused on how the quality of the NO curve profile, the discriminatory power, and the reproducibility were influenced by the exhalation flow rate. We used an on-line system for NO measurements at six different exhalation flow rates in the interval of 11-382 mL/s. The fraction of exhaled nitric oxide (FENO) was highly flow-dependent as was expected. Intermediate flow rates yielded a flat and stable NO plateau and were considerably easier to interpret than those obtained at the highest and lowest flow rates. The ratio of FENO between asthmatics and controls was lower at higher flow rates and a considerable overlap in NO values was demonstrated at all flow rates except 50 mL/s. The reproducibility was much lower at more extreme flow rates and was best at 50 mL/s. We conclude that a target exhalation flow rate of approximately 50 mL/s is to be preferred using the single-breath method for on-line NO measurements in schoolchildren.

Published
2002
Full Text
View/download PDF

15. Nitric oxide synthase inhibition augments acute allergic reactions in the pig airways in vivo.

Author

Middelveld RJ, Zetterquist WC, Bergman D, and Alving K

Subjects
Acute Disease, Airway Resistance, Animals, Antigens, Helminth immunology, Ascaris suum immunology, Bronchi physiopathology, Bronchoalveolar Lavage Fluid chemistry, Cardiovascular System physiopathology, Gases blood, Histamine immunology, Hydrogen-Ion Concentration, Hypersensitivity physiopathology, Inflammation Mediators analysis, Inflammation Mediators urine, Lung Compliance, Swine, Enzyme Inhibitors pharmacology, Hypersensitivity immunology, Nitric Oxide Synthase antagonists & inhibitors, Nitroarginine pharmacology
Abstract

The aim of this study was to examine the effects of nitric oxide synthase inhibition on antigen- and histamine-induced acute airway reactions, in order to clarify the possible modulating role of NO. Twelve specific-pathogen-free pigs (sensitized with Ascaris suum antigen) were challenged with an antigen aerosol during mechanical ventilation and anaesthesia. Six pigs were pretreated with N(G)-nitro-L-arginine (L-NA, 10 mg x kg(-1)), a NO synthase inhibitor, 30 min before challenge. In separate experiments, seven sensitized pigs received histamine (5 mg) aerosols before and after L-NA treatment. It was found that pretreatment with L-NA resulted in an enhanced airways resistance response to antigen (areas under the curve 0-90 min were (mean+/-SEM) 1,119+/-160 versus 555+/-56 (cmH2O x L(-1) x s(-1) x min for controls, p<0.05 (Mann-Whitney U-test), whereas this response to histamine was not affected by L-NA. Moreover, L-NA pretreatment significantly enhanced total protein (1.85+/-0.43 versus 0.31+/-0.06 g x L(-1), p<0.01) and histamine levels (42.8+/-16.0 versus 2.6+/-0.8 nM, p<0.05) in bronchoalveolar lavage fluid 45 min after antigen challenge. In conclusion, this study showed that N(G)-nitro-L-arginine enhanced reactions occurring during the acute allergic reaction in pigs in vivo. This indicates a protective role of nitric oxide, which might occur through downregulation of histamine release from mast cells rather than a direct bronchodilating effect of nitric oxide.

Published
2000
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results