AUTHOR=Subramanian Jaichandar , Tremblay Marie-Ève TITLE=Editorial: Synaptic Loss and Neurodegeneration JOURNAL=Frontiers in Cellular Neuroscience VOLUME=15 YEAR=2021 URL=https://www.frontiersin.org/journals/cellular-neuroscience/articles/10.3389/fncel.2021.681029 DOI=10.3389/fncel.2021.681029 ISSN=1662-5102