MOLDS INDOORS GENERALLY PRODUCE MYCOTOXINS

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Research article summary (published 30 Oct 2009):

Molds and mycotoxins in indoor environments--a survey in water-damaged

buildings.

Full Abstract

Mycotoxins are toxic, secondary metabolites frequently produced by molds in

water-damaged indoor environments. We studied the prevalence of selected, potent

mycotoxins and levels of fungal biomass in samples collected from water-damaged

indoor environments in Sweden during a 1-year period. One hundred samples of

building materials, 18 samples of settled dust, and 37 samples of cultured dust

were analyzed for: (a) mycoflora by microscopy and culture; ( fungal chemical

marker ergosterol and hydrolysis products of macrocyclic trichothecenes and

trichodermin (verrucarol and trichodermol) by gas chromatography-tandem mass

spectrometry; and © sterigmatocystin, gliotoxin, aflatoxin B(1), and

satratoxin G and H by high performance liquid chromatography-tandem mass

spectrometry. Sixty-six percent of the analyzed building materials samples, 11%

of the settled dust samples, and 51% of the cultured dust samples were positive

for at least one of the studied mycotoxins. In addition, except in the case of

gliotoxin, mycotoxin-positive building material samples contained 2-6 times more

ergosterol than mycotoxin-negative samples. We show that (a) molds growing on a

range of different materials indoors in water-damaged buildings generally

produce mycotoxins, and ( mycotoxin-containing particles in mold-contaminated

environments may settle on surfaces above floor level. The mass spectrometry

methods used in this study are valuable tools in further research to survey

mycotoxin exposure and investigate potential links with health effects.

19757292-molds-mycotoxins-indoor-environments-survey-water-damaged-buildings

[Guest guest]

http://en.wikipedia.org/wiki/Ergosterol

thats interesting. weird, this rashy skin problem thats on my back gets really

aggervating and burns like crazy if I were a shirt that exposes it to the sun.

also the sweating I still sometimes have around my neck and upper back

aggervates it. sence the sinuses and lungs are so closely connected, often what

aggervates the organ damage of one affects the other.

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> Research article summary (published 30 Oct 2009):

>

> Molds and mycotoxins in indoor environments--a survey in water-damaged

buildings.

>

> Full Abstract