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Published on: March 9, 2018
Mycotoxins of aspergilli: exposure and health effects
1Finnish Institute of Occupational Health, Uusimaa Regional Institute, Arinatie 3 A FIN-00370 Helsinki, Finland. kari.reijula@occuphealth.fi
Abstract:
Mycotoxins derived from Aspergilli can be encountered both in domestic and occupational environments, and the exposure may lead to severe health hazards. Several Aspergillus species are associated with mycotoxin production: A. ochraceus with ochratoxin A, A. fumigatus with fumitremorgins, gliotoxin and verrucologen, A. versicolor with sterigmatocystin, and A. flavus and A. parasiticus with aflatoxins. Sterigmatocystin may also be produced by A. flavus, A. nidulans, A. rugulosus, and A. unguis. Exposure to mycotoxin may occur via enteric, inhalation or direct contact to skin and mucosa. Acute and chronic disorders, irritation, systemic reactions and even cancer may develop after the exposure to these toxins. Mycotoxins act as immunosuppressants which may be in association with an increased prevalence of repeated infections found among the inhabitants of buildings with moisture problems.
Insights
Exposure to mycotoxins from Aspergillus species in homes and workplaces can cause severe health issues. These fungal toxins can lead to various health problems, including infections and cancer, through different exposure routes.
Area of Science:
- Environmental Science
- Toxicology
- Mycology
Background:
- Mycotoxins produced by Aspergillus species are prevalent in domestic and occupational settings.
- Exposure to these mycotoxins poses significant health risks to humans.
- Specific Aspergillus species are linked to the production of various mycotoxins, such as aflatoxins and ochratoxin A.
Purpose of the Study:
- To highlight the health hazards associated with mycotoxin exposure from Aspergillus species.
- To identify the sources and routes of exposure to mycotoxins.
- To underscore the potential health consequences, including immunosuppression and increased infection rates.
Main Methods:
- Literature review on mycotoxin-producing Aspergillus species.
- Summary of known mycotoxins and their associated species.
- Description of exposure pathways (enteric, inhalation, dermal).
Main Results:
- Several Aspergillus species (e.g., A. ochraceus, A. fumigatus, A. versicolor, A. flavus, A. parasiticus) produce harmful mycotoxins.
- Exposure can occur through ingestion, inhalation, or skin contact.
- Health effects range from acute and chronic disorders to cancer and immunosuppression.
Conclusions:
- Aspergillus-derived mycotoxins represent a serious environmental and health concern.
- Understanding exposure routes and health effects is crucial for prevention.
- Mycotoxin-induced immunosuppression may contribute to recurrent infections in damp environments.
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