University of Wisconsin-Madison | Stem cell transplant restores memory, learning in mice University of Wisconsin-Madison Brain repair through cell replacement is a Holy Grail of stem cell transplant, and the two cell types are both critical to brain function, Zhang says. "Cholinergic neurons are involved in Alzheimer's and Down syndrome, but GABA neurons are involved in ... Stem Cell Transplant Sees Mice Regaining Memory And Learning Capabilities ... Human Stem Cells Injected In Mice Restore Memory, Learning Capacity Stem cells help mice regain memory |