Top scientist says to ignore Cung Le's HGH test result
MMA fighter Cung Le was suspended for one year by the Ultimate Fighting Championship (UFC) last week for elevated Human Growth Hormone (HGH) levels found in a blood sample collected immediately following his August 23 TKO loss to Michael Bisping. Le's suspension was initially for nine months but the UFC revised their suspension and extended it to a year, citing an error on their part. That suspension appears to be one in a series of errors made by the UFC regarding Le and his test results. Mounting scientific evidence suggests a myriad of mistakes made by the lab as well as the UFC. The Hong Kong lab used to conduct the hGH test, the sample collection procedure and the actual test results used to determine the "elevated levels of hGH" have some of the top anti-doping experts puzzled.
One of the world’s most renowned sports doping scientists and the former chairman of the Australian Sports AntiDoping Authority, both responded to the test results with outright skepticism. One of them even flat out said he'd ignore the test results.
There are currently two different tests being used by the World Anti Doping Agency (WADA) to detect hGH use. The hGH "Isoform Differential Immunoassays" test is used to determine the presence of exogenous (meaning from an outside source) hGH in the system. That test is used in conjunction with a test for serum IGF1 levels.
The other hGH test is known as the Biomarker test. According to the Hong Kong lab report reviewed by this reporter, none of these sports doping hGH tests were conducted on Cung Le's blood sample.
Instead, the Hong Kong lab took a reading of Le's total hGH concentration, which by itself cannot determine if the subject has used exogenous hGH or not.
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