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ASTHMA |
1 Department of Allergy, Respiratory Medicine and Sleep, Landspitali University Hospital, 108 Reykjavik, Iceland
2 Department of Gastroenterology, Landspitali University Hospital, 101 Reykjavik, Iceland
3 Department of Clinical Biochemistry, Landspitali University Hospital, 108 Reykjavík, Iceland
4 Lung Clinic, Tartu University Clinics, Estonia
5 Department of Medical Sciences: Respiratory Medince and Allergology, Uppsala University, Sweden
Correspondence to:
Correspondence to:
Professor T Gislason
Department of Allergy, Respiratory Medicine and Sleep, Landspitali University Hospital, 108 Reykjavík, Iceland; thorarig{at}landspitali.is
Background: High sensitivity C reactive protein (HsCRP) is an inflammatory marker known to be related to smoking, obesity, and cardiovascular disease. A study was undertaken to determine whether HsCRP is related to respiratory symptoms, asthma, atopy, and bronchial hyperresponsiveness in population samples from three countries.
Methods: HsCRP was measured in 1289 subjects from three centres in ECRHS II: Reykjavik, Uppsala and Tartu. The HsCRP values ranged from <0.01 mg/l to 70.0 mg/l and were divided into four equal groups (
0.45, 0.46–0.96, 0.97–2.21, and >2.21 mg/l).
Results: HsCRP increased with increasing body mass index (r = 0.41; p<0.0001) and was higher in smokers than in never smokers (p = 0.02). A significant relationship was found between increased HsCRP levels and respiratory symptoms such as wheeze, attacks of breathlessness after effort, and nocturnal cough (p<0.0001). The crude odds ratio (95% CI) for the probability of non-allergic asthma was 3.57 (1.83 to 6.96) for subjects in the 4th quartile compared with the 1st quartile of HsCRP. This association remained significant after adjusting for study centre, age, sex, body weight, and smoking history (OR 2.19 (95% CI 1.04 to 4.63)). No significant relationship was observed between HsCRP and allergic asthma or bronchial responsiveness.
Conclusions: Raised levels of HsCRP are significantly associated with respiratory symptoms and non-allergic asthma but not with allergic asthma.
Abbreviations: BMI, body mass index; CRP, C reactive protein; HsCRP, high sensitivity C reactive protein
Keywords: C reactive protein; respiratory symptoms; asthma; obesity
Relevant Article
Thorax 2005 60: 441.
This article has been cited by other articles:
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  B. K. Butland, D. P. Strachan, and A. R. Rudnicka C-reactive protein, obesity, atopy and asthma symptoms in middle-aged adults Eur. Respir. J., July 1, 2008; 32(1): 77 - 84. [Abstract] [Full Text] [PDF]
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 N L A Misso, N Petrovic, C Grove, A Celenza, J Brooks-Wildhaber, and P J Thompson Plasma phospholipase A2 activity in patients with asthma: association with body mass index and cholesterol concentration Thorax, January 1, 2008; 63(1): 21 - 26. [Abstract] [Full Text] [PDF]
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E. F. M. Wouters The systemic face of airway diseases: the role of C-reactive protein. Eur. Respir. J., May 1, 2006; 27(5): 877 - 879. [Full Text] [PDF]
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M. Takemura, H. Matsumoto, A. Niimi, T. Ueda, H. Matsuoka, M. Yamaguchi, M. Jinnai, S. Muro, T. Hirai, Y. Ito, et al. High sensitivity C-reactive protein in asthma. Eur. Respir. J., May 1, 2006; 27(5): 908 - 912. [Abstract] [Full Text] [PDF]
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