Aug. 26, 2015 - Southern Illinois University School of Medicine researcher Kathleen Campbell, PhD, professor in the Department of Surgery, has secured a five-year grant from the National Institutes of Health (NIH) to advance her decades of research in hearing loss prevention and treatment. The total budget for the project is $2.8 million. This grant will determine the optimal dosing level of D-methionine (D-met), a compound that has been shown to prevent hearing loss. D-met is an amino acid that has been found to protect against noise-induced hearing loss and ototoxicity, or damage to the ear