Re: answer-Urine Mycotoxin Testing

[Guest guest]

I agree with you K. I know they were there, but it is frustrating when you

spend the money and have the test done and it comes out negative. Thats all I am

saying. I knew a patient here that did that test to " prove " to her husband that

their house was making her extremely ill, her test came out negative and her

" proof " went out the window...and so did her husband.

>

> ppb is the the size that they are able to detect.  Tricothecenes can to be

detected at .02ppb. Ochratoxins and aflatoxins they start to measure at higher

levels.  To know how small that is , take a grain of salt and divide into a

thousand pieces.  1 of those pieces is a ppb.  All of the mycotoxin love to

hide and like to get stored in your fat.  Just cause you didn't piss it out

doesn't mean its not there.  Also remember there are 14 mycotoxins they can't

test for.  

> Hope that helps

>

>

[Guest guest]

Respectfully to All: this is the type of dissemination of misinformation that

will cause confusion.

Please make corrections when you discuss reports and results from things like

lab results.

ppb is parts per billion, (ppm is parts per million)

ppb is NOT size.

PPB is a unit of Concentration. It can be low (very little coffee in the water)

or it can be high (lots of coffee in the water).

We use concentration because we can report the amount of the substance

regardless of the initial volume collected, or in the case of physiology and

health, we can discuss relative concentrations regardless of the size of the

individual, or in case of environment, the amount of contamination regardless of

the size of the space.

This allows us to discuss exposures and risk, etc.

The analogy of salt divided into 1000 parts is not correct either (that would be

ppt-parts per thousand). To get ppb, you must divide a single grain into one

billion (with a parts; a single part would then be considered a billionth of

the grain, i.e., 1 ppb.

With regard to lab detection " limits " , this is the smallest concentration they

can detect using a particular analysis method.

ppb have nothing to do with size or weight. Although, concentration can be

expressed as weight/weight (e.g., grams/kg). It is rarely if ever expressed as

size (e.g., mm/meter)

>

> what are ppb of mycotoxins? I took the 700$ test and it came back negative.

after my results were in and I posted to the list, Dr T said he suggests early

am.. I askhad asked real time before I tested if should be an early am or 24

hour which made more sense to me and they said no.. just any time of day.. very

frustrated with this lab and confused about the neg on the test.

>

[Guest guest]

Dr Thrasher, including mycotoxins is this a pretty exhaustive list of causes of

sick building (water damaged or not)? " Mycobacterium and MAC, Gram negative

bacteria and endotoxins leading to respiratory symptoms and aggravation of

existing asthma, MVOCs and VOCs " ?

formaldehyde would be a VOC? chinese drywall perhaps endotoxins? Do you know a

good review article on the main contributors to sick buildings?

--- In , " Jack Thrasher, Ph.D. " <toxicologist1@...>

wrote:

>

> Good points Carl. As both you and I have said there is too much talk on

> molds and mycotoxins. Many other conditions in WDB can lead to illness,

> e.g. Mycobacterium and MAC, Gram negative bacteria and endotoxins leading to

> respiratory symptoms and aggravation of existing asthma, MVOCs and VOCs. I

> recommend mycotoxin testing only after the specific fungi are identified

> that produce trichothecenes, aflatoxins and ochratoxin. These tests do not

> detect anything else. Also, endotoxins can cause a fever by stimulating the

> up regulation of IL1. Finally, there are two strains of Stachybotrys, one

> that produces trichothecenes and other spirocyclic drimanes.

>

>much

> beyond " presence " above the minimal level of detection for that specific

> test.

>

>