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Immunological Investigations
A Journal of Molecular and Cellular Immunology
Volume 46, 2017 - Issue 6
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Original Articles

Air- and Dust-Borne Fungi in Indoor and Outdoor Home of Allergic Patients in a Dust-Storm-Affected Area

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ABSTRACT

Despite the recent increases in fungi-induced allergic diseases, there is no report yet in the region of the Persian Gulf on concentration levels of fungi in relationship with health state. Therefore, our aim was to measure fungi prevalence as well as to evaluate the relationships between air- and dust-borne fungal genera and allergic diseases. A matched case-control study was carried out including 45 allergic cases and 45 age- and gender-matched controls for each individual. Indoor and outdoor dust and indoor air samples were collected from participant homes during May to October 2015. A Quick Take 30 Pump and sterile wet swab were used to determine fungal types and their amounts in the air (CFU/m3) and dust (CFU/100 cm2) samples, respectively. A significant reverse association was found between indoor dust-borne Alternaria and asthma (Odds ratio (OR) = 0.14, 95% CI = 0.02–0.86). Contrarily, increased levels of indoor air-borne Aspegillus fumigatus (OR = 2.00, 95% CI = 0.37–10.55) and Alternaria (OR = 3.00, 95% CI = 0.34–25.83) were correlated with asthma development. Also, correlation analysis showed a significant relation between indoor air-borne Penicillium levels and reactivity to skin prick test in asthmatic patients (p = 0.04). Our findings support the notion that fungal exposures can either cause or prevent the development of allergic diseases. Accordingly, appropriate measures should be taken for a better management of fungi-induced allergic diseases.

Acknowledgments

This work was conducted as a student master thesis project in environmental health engineering. The authors are grateful to the staff of environmental health engineering and medical mycology laboratories for their support in this study.

Declaration of interest

The authors declare no competing interests.

Funding

This work was supported by Bushehr University of Medical Sciences [grant number 91100].

Additional information

Funding

This work was supported by Bushehr University of Medical Sciences [grant number 91100].

Notes on contributors

Elham Shabankarehfard

ESh was the main investigator, collected the samples and data, and wrote the first draft of the manuscript. AO performed the statistical analysis. ShF, BN and SZ were advisors of the study. ShN, MK, and FS conducted the experiments. SD was the supervisor of study in all steps, edited and polished the final version of manuscript. All authors read and approved the final version of manuscript.

Afshin Ostovar

ESh was the main investigator, collected the samples and data, and wrote the first draft of the manuscript. AO performed the statistical analysis. ShF, BN and SZ were advisors of the study. ShN, MK, and FS conducted the experiments. SD was the supervisor of study in all steps, edited and polished the final version of manuscript. All authors read and approved the final version of manuscript.

Shokrollah Farrokhi

ESh was the main investigator, collected the samples and data, and wrote the first draft of the manuscript. AO performed the statistical analysis. ShF, BN and SZ were advisors of the study. ShN, MK, and FS conducted the experiments. SD was the supervisor of study in all steps, edited and polished the final version of manuscript. All authors read and approved the final version of manuscript.

Behrouz Naeimi

ESh was the main investigator, collected the samples and data, and wrote the first draft of the manuscript. AO performed the statistical analysis. ShF, BN and SZ were advisors of the study. ShN, MK, and FS conducted the experiments. SD was the supervisor of study in all steps, edited and polished the final version of manuscript. All authors read and approved the final version of manuscript.

Sasan Zaeri

ESh was the main investigator, collected the samples and data, and wrote the first draft of the manuscript. AO performed the statistical analysis. ShF, BN and SZ were advisors of the study. ShN, MK, and FS conducted the experiments. SD was the supervisor of study in all steps, edited and polished the final version of manuscript. All authors read and approved the final version of manuscript.

Shahrokh Nazmara

ESh was the main investigator, collected the samples and data, and wrote the first draft of the manuscript. AO performed the statistical analysis. ShF, BN and SZ were advisors of the study. ShN, MK, and FS conducted the experiments. SD was the supervisor of study in all steps, edited and polished the final version of manuscript. All authors read and approved the final version of manuscript.

Mozhgan Keshtkar

ESh was the main investigator, collected the samples and data, and wrote the first draft of the manuscript. AO performed the statistical analysis. ShF, BN and SZ were advisors of the study. ShN, MK, and FS conducted the experiments. SD was the supervisor of study in all steps, edited and polished the final version of manuscript. All authors read and approved the final version of manuscript.

Farzaneh Sadeghzadeh

ESh was the main investigator, collected the samples and data, and wrote the first draft of the manuscript. AO performed the statistical analysis. ShF, BN and SZ were advisors of the study. ShN, MK, and FS conducted the experiments. SD was the supervisor of study in all steps, edited and polished the final version of manuscript. All authors read and approved the final version of manuscript.

Sina Dobaradaran

ESh was the main investigator, collected the samples and data, and wrote the first draft of the manuscript. AO performed the statistical analysis. ShF, BN and SZ were advisors of the study. ShN, MK, and FS conducted the experiments. SD was the supervisor of study in all steps, edited and polished the final version of manuscript. All authors read and approved the final version of manuscript.

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