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Sökning: onr:"swepub:oai:lup.lub.lu.se:00ea76b8-aea6-4e7d-b9fb-fa5696902942" > Evidence of airway ...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00003329naa a2200313 4500
001oai:lup.lub.lu.se:00ea76b8-aea6-4e7d-b9fb-fa5696902942
003SwePub
008160401s2000 | |||||||||||000 ||eng|
024a https://lup.lub.lu.se/record/11166742 URI
040 a (SwePub)lu
041 a engb eng
042 9 SwePub
072 7a art2 swepub-publicationtype
072 7a ref2 swepub-contenttype
100a Karjalainen, E M4 aut
2451 0a Evidence of airway inflammation and remodeling in ski athletes with and without bronchial hyperresponsiveness to methacholine
264 1c 2000
520 a Asthma-like symptoms, methacholine hyperresponsiveness, and use of asthma medication are prevalent in elite cross-country skiers. We quantitated mucosal inflammatory cell infiltration and tenascin expression in the subepithelial basement membrane in endobronchial biopsy specimens of the proximal airways from 40 elite, competitive skiers (mean: 17.5; range: 16 to 20 yr) without a diagnosis of asthma, in 12 subjects with mild asthma, and in 12 healthy controls, through immunohistochemistry and indirect immunofluorescence, respectively. All of the subjects were nonsmokers. T-lymphocyte, macrophage, and eosinophil counts were, respectively, greater by 43-fold (p < 0.001), 26-fold (p < 0.001), and twofold (p < 0.001) in skiers, and by 70-fold (p < 0.001), 63-fold (p < 0.001), and eightfold (p < 0.001) in asthmatic subjects than in controls. In skiers, neutrophil counts were more than twofold greater than in asthmatic subjects, and mast cell counts were not significantly different than in controls. Tenascin expression (as measured through the thickness of the tenascin-specific immunoreactivity band in the basement membrane) was increased in skiers (median: 6.7 microm; interquartile range [IQR]: 5.3 to 8.5 microm, p < 0.001) and asthmatic subjects (mean: 8.8 microm; IQR: 7.2 to 10.8 microm, p < 0. 001) compared with controls (mean: 0.8 microm; IQR: 0 to 3.1 microm) and did not correlate with inflammatory cell counts. Inflammatory changes were present irrespective of asthmalike symptoms, hyperresponsiveness, or atopy. Prolonged repeated exposure of the airways to inadequately conditioned air may induce inflammation and remodeling in competitive skiers.
650 7a MEDICIN OCH HÄLSOVETENSKAPx Klinisk medicinx Lungmedicin och allergi0 (SwePub)302192 hsv//swe
650 7a MEDICAL AND HEALTH SCIENCESx Clinical Medicinex Respiratory Medicine and Allergy0 (SwePub)302192 hsv//eng
700a Laitinen, A4 aut
700a Sue-Chu, M4 aut
700a Altraja, A4 aut
700a Bjermer, Leifu Lund University,Lunds universitet,Lungmedicin, allergologi och palliativ medicin,Sektion II,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Respiratory Medicine, Allergology, and Palliative Medicine,Section II,Department of Clinical Sciences, Lund,Faculty of Medicine4 aut0 (Swepub:lu)lung-lbj
700a Laitinen, L A4 aut
710a Lungmedicin, allergologi och palliativ medicinb Sektion II4 org
773t American Journal of Respiratory and Critical Care Medicineg 161:6, s. 2086-2091q 161:6<2086-2091x 1535-4970
856u http://ajrccm.atsjournals.org/cgi/content/full/161/6/2086x freey FULLTEXT
8564 8u https://lup.lub.lu.se/record/1116674

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Karjalainen, E M
Laitinen, A
Sue-Chu, M
Altraja, A
Bjermer, Leif
Laitinen, L A
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MEDICIN OCH HÄLSOVETENSKAP
MEDICIN OCH HÄLS ...
och Klinisk medicin
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Lunds universitet

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