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In 2004, he founded and served as CEO of PAI Life Sciences Inc., a bioinformatics company with proprietary drug discovery technologies using artificial neural nets. Darrick also served as Chief Scientific Officer at a specialty pharmaceutical company focused on drug and device combinations, is a founding member of a company focused on immunotherapy in oncology, and a founding member of a device company working on inflammatory disorders. Darrick sits on the Scientific Advisory Boards of three local biotech companies and hosts a website for protein chemists. He has authored over 50 peer-reviewed papers and is inventor/co-inventor on more than 160 patent applications and issued patents.
Androgens are responsible for the growth spurt of adolescence and for the eventual termination of linear growth, which is brought about by fusion of the epiphyseal growth centers. In children, exogenous androgens accelerate linear growth rates but may cause a disproportionate advancement in bone maturation. Use over long periods may result in fusion of the epiphyseal growth centers and termination of growth process. Androgens have been reported to stimulate the production of red blood cells by enhancing the production of erythropoeitic stimulating factor. During exogenous administration of androgens,Â endogenous testosterone Â release is inhibited through feedback inhibition of pituitary luteinizing hormone (LH).