Testosterone

[mimitabby]

You know, i was just talking to my DH's cousin, a nurse.
She made an interesting point. who's to say that people in
competitions can't make extra testosterone?
They've shown that couch potatoes whose teams are winning
have higher testosterone levels than the guys whose teams are
losing.
What would the diff be like with a guy who assaulted the hills under
considerable duress and odds; and won?? If anything PRODUCED testosterone,
that would, i'd think?!

[Nanci]

The latest news, under a different thread, is that the testosterone appears to be from an outside source, not from Floyd himself. Apparently there is a way to differentiate.

So did it show up the day before or the day after too? How long does it last? Can it wear off after only one day??? I wish the B sample would get tested and be done with so we would know one way or the other.

[Bad JuJu]

Seems to make sense. Our bodies make lots of substances on their own, for example cholesterol--some people's bodies just naturally make more, regardless of what they ingest.

On the other hand, I read somewhere that there's some way of distinguishing between testosterone made by/in the body in question and testosterone that has been "imported," so to speak, from elsewhere. Anybody know anything about this?

[Bron]

The testosterone made in the body has a higher ratio of carbon-13 in it than testosterone made in a lab. A mass spectrometer can be used to measure the ratio of C-13 to C-12.

There is a summary of this on cyclingnews.com:
http://www.cyclingnews.com/news.php?...terone_testing

Bron

[mimitabby]

The testosterone made in the body has a higher ratio of carbon-13 in it than testosterone made in a lab. A mass spectrometer can be used to measure the ratio of C-13 to C-12.

There is a summary of this on cyclingnews.com:
http://www.cyclingnews.com/news.php?...terone_testing

Bron

Great article, Bron, thanks. This makes it all clear to me.. At least the premise... now for the results!

[Bike Goddess]

My concern is that the lab which is doing the testing is the same one the claimed Lance had tainted blood in 1999-which he contested and won.

So, consider the source and who is doing the testing.
The next week should give us something more definitive.

[Triskeliongirl]

I started the other thread reporting the abnormal mass spec results. What concerns me now the most is that the only source of that information is L'Equipe so even if it is correct, why was it leaked to L'Equipe? With that being said though, it is a reliable test when performed correctly, and if that is indeed the result then Landis is toast. And if its true, I am done watching professional cycling. First tyler was my hero, then ivan, then floyd..... If he did it he was damn stupid is all that I can say. BUT, from the latest in velo news, there is not going to be a quick resolution to any of this. The good part about that means that nothing further is supposed to be released until due process is followed, tests are repeated, counter tests are performed, etc., all of which takes time. Whether more stuff is leaked is anyone's guess, but RELIABLE information is supposed to now be slow in coming. However, my gut no longer has a good feeling about this........

[Triskeliongirl]

My concern is that the lab which is doing the testing is the same one the claimed Lance had tainted blood in 1999-which he contested and won.

So, consider the source and who is doing the testing.
The next week should give us something more definitive.

Lance was let off, not cuz he didn't do it, but because the sample was never supposed to be used for that type of analysis, it was supposed to be used for research purposes, not to out a rider. Since there was no way to prove they didn't tamper with it, there were no rider protections in place, he was let off. Its just like Tyler getting off cuz they messed up his olympic B sample, but be outed in the Vuelta. Does that mean Tyler didn't also cheat in the Olympics? NO, just that they can't PROVE it in a way that protects the rights of the rider.

I too have a problem with the fact that someone in that lab leaks information, but it doesn't mean they can't perform a test correctly. Landis will have the opportunity to watch them open the vial they sealed in his presence, or have his expert witness the idea procedure. So if the B comes back positive for exogenous test., there will be no more questions.

[Bron]

You know, i was just talking to my DH's cousin, a nurse.
She made an interesting point. who's to say that people in
competitions can't make extra testosterone?
They've shown that couch potatoes whose teams are winning
have higher testosterone levels than the guys whose teams are
losing.
What would the diff be like with a guy who assaulted the hills under
considerable duress and odds; and won?? If anything PRODUCED testosterone,
that would, i'd think?!

If this was the case then wouldn´t loads of athletes be testing positive?
Just a thought.
Bron