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Microcap & Penny Stocks : EXTI - only public co. developing liver device

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To: Danny Kim who started this subject4/21/2004 5:10:38 PM
From: MaxLeverage   of 1063
 
216.239.53.104

Pharmacokinetic Studies: the Earlier the Better

PK properties can make or break a new drug, forcing companies to conduct ADME studies sooner in the discovery process


JR Minkel
Minkel is a freelance writer based in based in Brooklyn, N.Y.

Early drug metabolism models help predict a compound's elimination from the body, or metabolic stability, which affects its duration of action. At Xenotech LLC, Lenexa, Kan., researchers incubate the compound and whole human hepatocytes manually in test tubes for 1 hour. They use low substrate concentrations at first to mimic the likely levels of drug in the human body. High-performance liquid chromatography or liquid chromatography-mass spectrometry (LCMS) tells them the concentration of compound at successive intervals. They compare results to compounds with known stabilities and can establish a half-life for the test compound.
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