The DOI matches its Crossref record; 20 of the 20 references it cites were found in a registry or an index.
Evidence of Airway Inflammation and Remodeling in Ski Athletes with and without Bronchial Hyperresponsiveness to Methacholine
Abstract
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.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Bronchial reactivity to inhaled histamine: a method and clinical survey
COCKCROFT, D. W., KILLIAN, D. N., MELLON, J. J. A., & HARGREAVE, F. E. (1977) · Clinical & Experimental Allergy · doi:10.1111/j.1365-2222.1977.tb01448.x · Cited by 1,840
Cellular Events in the Bronchi in Mild Asthma and after Bronchial Provocation
Beasley, R., Roche, W. R., Roberts, J. A., & Holgate, S. T. (1989) · American Review of Respiratory Disease · doi:10.1164/ajrccm/139.3.806 · Cited by 1,128
Mechanisms of bronchial hyperreactivity in normal subjects after upper respiratory tract infection.
Empey, D. W., Laitinen, L. A., Jacobs, L., Gold, W. M., & Nadel, J. A. (1976) · PubMed · doi:10.1164/arrd.1976.113.2.131 · Cited by 955
Self-citationBradley, B. L., Azzawi, M., Jacobson, M., Assoufi, B., Collins, J. V., Irani, A.-M. A., Schwartz, L. B., Durham, S. R., Jeffery, P. K., & Kay, A. B. (1991) · Journal of Allergy and Clinical Immunology · doi:10.1016/0091-6749(91)90160-p · Cited by 665
Induction of tenascin in healing wounds
Mackie, E. J., Halfter, W., & Liverani, D. (1988) · The Journal of cell biology · doi:10.1083/jcb.107.6.2757 · Cited by 555
Airway Mucosal Inflammation Even in Patients with Newly Diagnosed Asthma
Laitinen, L. A., Laitinen, A., & Haahtela, T. (1993) · American Review of Respiratory Disease · doi:10.1164/ajrccm/147.3.697 · Cited by 524
Self-citationBentley, A. M., Menz, G., Storz, C., Robinson, D. S., Bradley, B., Jeffery, P. K., Durham, S. R., & Kay, A. B. (1992) · American Review of Respiratory Disease · doi:10.1164/ajrccm/146.2.500 · Cited by 407
Tenascin Is Increased in Airway Basement Membrane of Asthmatics and Decreased by an Inhaled Steroid
LAITINEN, A., ALTRAJA, A., KÄMPE, M., LINDEN, M., VIRTANEN, I., & LAITINEN, L. A. (1997) · American Journal of Respiratory and Critical Care Medicine · doi:10.1164/ajrccm.156.3.9610084 · Cited by 341
Self-citationHigh prevalence of asthma in cross country skiers.
Larsson, K., Ohlsén, P., Larsson, L., Malmberg, P., Rydström, P. O., & Ulriksen, H. (1993) · BMJ · doi:10.1136/bmj.307.6915.1326 · Cited by 295
Ramsdale, E. H., Morris, M. M., Roberts, R. S., & Hargreave, F. E. (1984) · Thorax · doi:10.1136/thx.39.12.912 · Cited by 194
Cited by
Asthma: defining of the persistent adult phenotypes
Wenzel, S. E. (2006) · The Lancet · doi:10.1016/s0140-6736(06)69290-8 · Cited by 1,043
Tenascins: regulation and putative functions during pathological stress
Chiquet‐Ehrismann, R., & Chiquet, M. (2003) · The Journal of Pathology · doi:10.1002/path.1415 · Cited by 549
The role of tenascin-C in tissue injury and tumorigenesis
Midwood, K. S., & Orend, G. (2009) · Journal of Cell Communication and Signaling · doi:10.1007/s12079-009-0075-1 · Cited by 438
Airway injury as a mechanism for exercise-induced bronchoconstriction in elite athletes
Anderson, S. D., & Kippelen, P. (2008) · Journal of Allergy and Clinical Immunology · doi:10.1016/j.jaci.2008.05.001 · Cited by 237
Asthma, Airway Inflammation and Epithelial Damage in Swimmers and Cold-Air Athletes
Bougault, V., Turmel, J., St-Laurent, J., Bertrand, M., & Boulet, L.-P. (2009) · European Respiratory Journal · doi:10.1183/09031936.00117708 · Cited by 170
Metadata
- Authors
- KARJALAINEN, E.-M., LAITINEN, A., SUE-CHU, M., ALTRAJA, A., BJERMER, L., & LAITINEN, L. A.
- Venue
- American Journal of Respiratory and Critical Care Medicine
- Publisher
- Oxford University Press (OUP)
- Published
- 2000-06-01
- Volume
- 161
- Issue
- 6
- Pages
- 2086-2091
- ISSN
- 1073-449X (ISSN-L)
- 1535-4970
- OpenAlex
- W2044754321
- Cited by
- 317
- References
- 20
- FWCI
- 7.56
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Evidence of Airway Inflammation and Remodeling in Ski Athletes with and without Bronchial Hyperresponsiveness to Methacholine. https://app.cochat.ai/papers/10.1164/ajrccm.161.6.9907025
- The paper
- KARJALAINEN, E.-M., LAITINEN, A., SUE-CHU, M., ALTRAJA, A., BJERMER, L., & LAITINEN, L. A. (2000). Evidence of Airway Inflammation and Remodeling in Ski Athletes with and without Bronchial Hyperresponsiveness to Methacholine. American Journal of Respiratory and Critical Care Medicine. https://doi.org/10.1164/ajrccm.161.6.9907025
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.