OK, this is just too weird not to mention, though I doubt you'll be developing CME activities around it any time soon: Blue Rats Walk Again. Yep, sounds like something called the Brilliant Blue G dye, when injected into rats very soon after a devastating spinal cord injury, gets them back on their feet. And turns them blue.
Kind of cute, isn't he? Here's a link to the actual research abstract: Systemic administration of an antagonist of the ATP-sensitive receptor P2X7 improves recovery after spinal cord injury.