Polymorphic genetic markers of the GABA catabolism pathway in Alzheimer's disease Manuscript Number: 20-0429R1 Author(s): Luisa Benussi, Giuliano Binetti, Bianca Maria Ciminelli, Roberta Ghidoni, Patrizia Malaspina, Giovanna Menduti, Sabrina Nica, Andrea Novelletto, Mauro Rongioletti, Luisa Rossi, Rosanna Squitti