Frick lab collaborator and friend Dr. Mary Jo LaDu of the University of Illinois at Chicago passed away unexpectedly in March 2023. Dr. LaDu was a leader in lipid biology whose contributions to understanding how APOE genotype influences women’s risk of Alzheimer’s disease will have a lasting impact on the field. We are devastated by her loss and will miss our friend and colleague. Obituaries for Mj can be found here and here.