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Test for synthetic testosterone accurate

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Joe King

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Aug 11, 2006, 8:38:57 PM8/11/06
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http://www.islandpacket.com/24hour/sports/story/3342248p-12306550c.html


Tom Kunich

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Aug 11, 2006, 9:32:58 PM8/11/06
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"Joe King" <joe...@hotmail.com> wrote in message
news:Oq9Dg.156$KV3...@newsfe03.lga...
> http://www.islandpacket.com/24hour/sports/story/3342248p-12306550c.html

Yeah, now if only he would have mentioned that the percentage of C13 in
natural testosterone and that in synthetic testosterone overlaps. While you
can detect the specific ratios of C12 to C13 you cannot determine whether it
is natural or synthetic.


Simon Brooke

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Aug 12, 2006, 4:44:55 AM8/12/06
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in message <edaDg.2660$Sn3....@newsread3.news.pas.earthlink.net>, Tom

But you can compare it with the ratios of C12/C13 in other hormones taken
from the same person in the same sample. Which is what the test does.

--
si...@jasmine.org.uk (Simon Brooke) http://www.jasmine.org.uk/~simon/
"The result is a language that... not even its mother could
love. Like the camel, Common Lisp is a horse designed by
committee. Camels do have their uses."
;; Scott Fahlman, 7 March 1995


Tom Kunich

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Aug 13, 2006, 1:21:28 AM8/13/06
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"Simon Brooke" <si...@jasmine.org.uk> wrote in message
news:71h0r3-...@gododdin.internal.jasmine.org.uk...

> in message <edaDg.2660$Sn3....@newsread3.news.pas.earthlink.net>, Tom
> Kunich ('cyclintom@yahoo. com') wrote:
>
>> "Joe King" <joe...@hotmail.com> wrote in message
>> news:Oq9Dg.156$KV3...@newsfe03.lga...
>>>
> http://www.islandpacket.com/24hour/sports/story/3342248p-12306550c.html
>>
>> Yeah, now if only he would have mentioned that the percentage of C13 in
>> natural testosterone and that in synthetic testosterone overlaps. While
>> you can detect the specific ratios of C12 to C13 you cannot determine
>> whether it is natural or synthetic.
>
> But you can compare it with the ratios of C12/C13 in other hormones taken
> from the same person in the same sample. Which is what the test does.

Not if they have different rates of production in the body. For instance,
what if Floyd had a steak the night before? His Cholesterol would almost
immediately have a different ratio since it is almost instant whereas the
testosterone is a more complex equation and the change in ratios would occur
at a different rate.

Anyone notice how the UCI was willing to bleed out information negative to
Landis but they don't seem to be supplying any REAL information.


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