PMID- 26108070 OWN - NLM STAT- MEDLINE DCOM- 20160328 LR - 20161020 IS - 1539-6304 (Electronic) IS - 1088-5412 (Linking) VI - 36 IP - 4 DP - 2015 Jul-Aug TI - Effect of solar irradiation on serum specific immunoglobulin E to house-dust mite. PG - 44-50 LID - 10.2500/aap.2015.36.3845 [doi] AB - BACKGROUND: The relationship between sensitization to Dermatophagoides species and solar irradiation, as reflected by vitamin D, remains elusive. OBJECTIVE: We investigated the lag time and the cumulative and maximum effects of exposure to solar irradiation on sensitization to house-dust mites. METHODS: A time series study design was applied to solar irradiation (MJ/m(2)) and relative humidity (%) for specific immunoglobulin E (IgE) levels against Dermatophagoides pteronyssinus (n = 20,451) and Dermatophagoides farinae (n = 22,824). We used the distributed lag nonlinear model to assess the difference of log IgE to house-dust mites in relation to climate variables. RESULTS: Compared with specific IgE levels of those exposed to 18 MJ/m(2), the maximum increase in sensitization to D. pteronyssinus was observed at a solar irradiation of 10 MJ/m(2) at peak 0 week (difference of log IgE 0.368 [95% confidence interval (CI), 0.209-0.529], p < 0.001), and this increase continued for 3 weeks. The IgE level was significantly affected by the relative humidity of the 3rd- to 12th-lag week, and the effect reached its peak at 75% on the 8th week (difference of log IgE 0.394 [95% CI, 0.221-0.566], p < 0.001). The logistic regression analysis showed that solar irradiation was associated with a decreased risk to sensitization to D. pteronyssinus (odds ratio 0.988 per 1 MJ/m(2) [95% CI, 0.979-0.997], p < 0.013) on the testing week after controlling for humidity and temperature. CONCLUSION: This study demonstrated that low solar irradiation immediately increased the risk of sensitization to two house-dust mite species. Further research is warranted to delineate the underlying mechanism of the effect of solar irradiation on aeroallergen sensitization. FAU - Lee, Seung Won AU - Lee SW AD - CHA University School of Medicine, Seongnam, Korea. FAU - Cho, Eunhae AU - Cho E FAU - Koh, Hyun Yong AU - Koh HY FAU - Shin, Jihyun AU - Shin J FAU - Baek, Ji Hyeon AU - Baek JH FAU - Shin, Youn Ho AU - Shin YH FAU - Jee, Hye Mi AU - Jee HM FAU - Kim, Hyo-Mi AU - Kim HM FAU - Han, Man Yong AU - Han MY LA - eng PT - Journal Article PT - Multicenter Study PL - United States TA - Allergy Asthma Proc JT - Allergy and asthma proceedings JID - 9603640 RN - 0 (Antigens, Dermatophagoides) RN - 37341-29-0 (Immunoglobulin E) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Animals MH - Antigens, Dermatophagoides/*immunology MH - Child MH - Child, Preschool MH - Climate MH - Female MH - Humans MH - Hypersensitivity/epidemiology/immunology MH - Immunoglobulin E/blood/*immunology MH - Male MH - Middle Aged MH - Population Surveillance MH - Pyroglyphidae/*immunology MH - Republic of Korea/epidemiology MH - Seasons MH - *Sunlight MH - Young Adult EDAT- 2015/06/25 06:00 MHDA- 2016/03/29 06:00 CRDT- 2015/06/25 06:00 PHST- 2015/06/25 06:00 [entrez] PHST- 2015/06/25 06:00 [pubmed] PHST- 2016/03/29 06:00 [medline] AID - 10.2500/aap.2015.36.3845 [doi] PST - ppublish SO - Allergy Asthma Proc. 2015 Jul-Aug;36(4):44-50. doi: 10.2500/aap.2015.36.3845.