Cited by 171Asthma and respiratory diseasesAllergic Rhinitis and SensitizationOccupational exposure and asthma

Exposure and sensitization to indoor allergens: association with lung function, bronchial reactivity, and exhaled nitric oxide measures in asthma

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Langley, Stephen J., Goldthorpe, Sophie, Craven, Mark, Morris, Julie, Woodcock, Ashley, Custovic, Adnan·2003·Journal of Allergy and Clinical Immunology

Abstract

Background Exposure to high levels of allergens in sensitized asthmatic patients causes worsening of pulmonary function in experimental studies. Chronic exposure to lower, naturally occurring levels of allergens might increase the severity of asthma.Objective We sought to study the associations between sensitization and exposure to common indoor allergens (dust mite, cat, and dog) in the home on pulmonary function, exhaled nitric oxide (eNO), and airway reactivity in asthmatic patients.Methods Dust samples were collected from the living room carpet and mattress of 311 subject's homes, and Der p 1, Fel d 1, and Can f 1 concentrations were measured by using ELISAs. Spirometry, nonspecific bronchial reactivity, and eNO were measured.Results Subjects both sensitized and exposed to high levels of sensitizing allergen had significantly lower FEV(1) percent predicted values (mean, 83.7% vs 89.3%; mean difference, 5.6%; 95% CI, 0.6%-10.6%; P =.03), higher eNO values (geometric mean [GM], 12.8 vs 8.7 ppb; GM ratio, 0.7; 95% CI, 0.5-0.8; P =.001), and more severe airways reactivity (PD(20) GM, 0.25 vs 0.73 mg; GM ratio, 2.9; 95% CI, 1.6-5.0; P <.001) compared with subjects not sensitized and exposed. No significant effect of the interaction between sensitization and exposure was found for FEV(1) percent predicted and eNO values. However, there was a significant effect of the interaction between sensitization and exposure to any allergen (P =.05) and between sensitization and exposure to cat allergen (P =.04) for nonspecific bronchial reactivity.Conclusion Asthmatic subjects who are exposed in their homes to allergens to which they are sensitized have a more severe form of the disease.

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  • Despite interventions and treatments aimed at addressing modifiable factors and comorbidities, some children with difficult asthma and Asthma plus may not improve because of continued poor adherence with medications or ongoing high exposure to allergens, in which case they should be considered as having refractory difficult asthma or refractory Asthma plus.

    “However, despite interventions and treatments aimed at addressing modifiable factors and comorbidities, some children with DA and Asthma plus may not improve [e.g., because of the continued poor adherence with medications (50, 68), or ongoing high exposure to allergens (69–71)], in which case they should be considered as having refractory DA or refractory Asthma plus (46, 72).”

    From Epidemiology of Asthma in Children and Adults (2019) · cites this paper as [69]

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Research works printed but not linked: 4

  1. Juniper EF, Frith PA, Dunnett C, Cockcroft DW, Hargreave FE. Repro- ducibility and comparison of responses to inhaled histamine and metha- choline. Thorax 1978;33:705-10
  2. Kharitonov S, Alving K, Barnes PJ. Exhaled and nasal nitric oxide mea- surements: recommendations. ERS Task Force Report. Eur Respir J 1997;10:1683-93.
  3. Chapman MD, Woodfolk JA, Heyman PW. Cat Allergy. Ann Allergy 1992;69:273-5.
  4. Tracey M, Villar A, Dow L, Coggon D, Lampe FC, Holgate ST. The influence of increased bronchial responsiveness, atopy and serum IgE on decline in FEV 1 . Am J Respir Crit Care Med 1995;151:656-62.

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Authors
Langley, S. J., Goldthorpe, S., Craven, M., Morris, J., Woodcock, A., & Custovic, A.
Affiliations
  • Wythenshawe Hospital (GB)
  • Medicines Evaluation Unit (GB)
Venue
Journal of Allergy and Clinical Immunology
Publisher
Elsevier BV
Published
2003-08
Volume
112
Issue
2
Pages
362-368
ISSN
0091-6749 (ISSN-L)
OpenAlex
W2164740939
Cited by
171
References
36
Citations by year
2026: 1 · 2025: 4 · 2024: 3 · 2023: 4 · 2022: 7 · 2021: 5 · 2020: 6 · 2019: 9 · 2018: 7 · 2017: 6 · 2016: 9 · 2015: 9 · 2014: 13 · 2013: 11 · 2012: 9
FWCI
5.37
Type
journal article
Language
en
Open access
Locations
  • Journal of Allergy and Clinical Immunology (publishedVersion)
  • PubMed (publishedVersion)
  • Research Explorer (The University of Manchester) (publishedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Asthma and respiratory diseases
  • Health Sciences › Medicine › Immunology and Allergy › Allergic Rhinitis and Sensitization
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Occupational exposure and asthma
Keywords
asthma, indoor allergens, allergen sensitization, allergen exposure, house dust mite allergens, cat allergen, dog allergen, lung function, FEV1, exhaled nitric oxide, Der p 1, Fel d 1, Can f 1, disease severity
MeSH terms
Adolescent, Adult, Aged, Aged, 80 and over, Allergens, Asthma, Child, Environmental Exposure, Female, Housing, Humans, Immunization, Lung, Male, Middle Aged, Nitric Oxide, Respiration, Respiratory Function Tests, Bronchial Hyperreactivity, Air Pollution, Indoor

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