If you talking about neurons or astrocytes, I have protocols. I can provide them. For isolation of hippocampus from rat pups you may need video tutorial. I have a copy of how to isolate from striatum, but hippocampus is a little different kind of cut. If you need these protocols and video I can upload them for you, but these are for rat pups.
From the viewpoint of my research in Consciousness, I suggest neuropsychological modality of Higher Power as a means to boost neurophysiology in general, and hippocampus in particular.