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PED testing details for Marquez-Bradley revealed
Kizer said each fighter was randomly tested four times (both blood and urine) during the NSAC program, and that Carbon Isotope Radiation (CIR) screening to detect the use of synthetic testosterone was done on half of the urine samples collected. No synthetic testosterone was discovered in either fighter.
In addition, Kizer said both urine and blood passports were assembled, giving the lab full-scale biological passports for each fighter.
“I’m not sure this has ever been done before,” he said.
Urine and blood passports detect variances in an athlete’s established biological markers rather than testing for specific illegal substances. The tests are designed to catch users of so-called undetectable PEDs by measuring changes in the physiology of athlete.
Kizer said all tests performed during the program were the latest and greatest recommendations of WADA “and then some” and included the CIR tests and biological passports as well as more common screens for things such as anabolic agents, peptide hormones, metabolic modulators, diuretics, etc.
The tests performed included screens for Human Growth Hormone (HGH).
Moreover, Kizer said actual measurements of testosterone to estrogen (T/E) ratios were captured for each sample, and that neither fighter’s T/E ratio was over 1.1:1 at any time. For reference, 4:1 is the acceptable T/E ratio according to WADA. Nevada uses a higher standard, 6:1.