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Dr. Karla Johanning is a study director for CellzDirect's drug metabolism projects, including in vitro CYP450 inhibition and induction, metabolite stability and profiling, and enzyme identification studies. Dr. Johanning received her M.S. and Ph.D. degrees in biological sciences from the University of Rhode Island and received postdoctoral training at Louisiana State University Medical Center (LSUMC) and Tulane University�s medical center. In LSUMC�s Department of Biochemistry and Molecular Biology, she studied the cellular and molecular biology of enzymatic processing of pro-hormones into bioactive peptides. At Tulane, Dr. Johanning continued her postdoctoral training in molecular biology at the Tulane Cancer Center to research the effects of genetic and environmental factors on repetitive sequences resulting in genetic instability in the onset and progression of cancer. In March 2002, she joined the Center for Bioenvironmental Research at Tulane and Xavier Universities as senior research scientist in the Environmental Endocrinology Lab, where she conducted research in the field of endocrine disrupters. | 