All good questions, but it also lends some credence to the cryopreservative folks who are freezing people's heads for later reanimation. What those guys need is

All good questions, but it also lends some credence to the cryopreservative folks who are freezing people's heads for later reanimation. What those guys need is a recipe that they can use to insure the preserved brain can be re-animated later. For them a good perfusion process and a perfusion fluid that maximally preserves brain tissue over time would be a solid advancement in their cause.