A Longitudinal Study of Association between Heavy Metals and Itchy Eyes, Coughing in Chronic Cough Patients: Related with Non-Immunoglobulin E Mediated Mechanism

International Journal of Environmental Research and Public Health

Thao Thi Thu Nguyen⁴  Tomomi Higashi²  Yasuhiro Kambayashi⁴  Enoch Olando Anyenda⁴  Yoshimasa Michigami³  Johsuke Hara¹  Masaki Fujimura¹  Hiromasa Tsujiguchi⁴  Masami Kitaoka⁴  Hiroki Asakura⁴  Daisuke Hori⁴  Yuri Hibino⁴  Tadashi Konoshita⁵  Hiroyuki Nakamura⁴ 

[1] Respiratory Medicine, Cellular Transplantation Biology, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa 920-8640, Japan;Department of Hygiene, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa 920-8640, Japan;Environment Preservation Center, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan;Department of Environmental Health and Preventive Medicine, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa 920-8640, Japan;Third Department of Internal Medicine, Fukui University School of Medicine, Eiheiji, Fukui 910-1193, Japan;

关键词: heavy metals;    coughing;    itchy eyes;    chronic cough;    total serum IgE level;   

DOI  :  10.3390/ijerph13010110

来源: mdpi

【 摘 要 】

The association between heavy metals exposure and respiratory diseases or allergic sensitization showing high serum immunoglobulin E (IgE) has been suggested. However, previous findings have been inconsistent and the mechanisms responsible remain unclear. We evaluated heavy metal exposure and its association with coughing, itchy eyes in chronic cough patients with different IgE levels. Ninety outpatients in Kanazawa University Hospital were recruited between January–June 2011. Subjects whose total IgE measured by radioimmunosorbent test were asked to record their daily symptoms. We collected daily total suspended particles (TSP) from which concentrations of calcium (Ca), cadmium (Cd), chromium (Cr), iron (Fe), manganese (Mn), nickel (Ni), and lead (Pb) were determined then divided into high and low level groups. Generalized estimating equations were applied to compute the relationship between concentrations of these metals and symptoms. All metals at high levels were significantly associated with itchy eyes compared with low levels, with exception of Ca, the six others were significant in patients with IgE < 250 IU/mL. Cd, Fe, Mn had association with coughing (odds ratio-OR (95% confidence interval-CI): 1.13 (1.03, 1.24), 1.22 (1.05, 1.42), and 1.13 (1.01, 1.27), respectively), this relationship remained significant for Cd (OR (95% CI): 1.14 (1.03, 1.27)) and Mn (OR (95% CI): 1.15 (1.00, 1.31)) in patients with lower IgE. Our findings demonstrate the relationship between aerial heavy metals and itchy eyes, coughing in chronic cough patients, suggesting these symptoms may be due to a non-IgE mediated mechanism.

【 授权许可】

CC BY   
© 2016 by the authors; licensee MDPI, Basel, Switzerland.