Baltimore—Clearly, something is wrong with the white lab rat. Back arched, haunches tensed, he wobbles about the tabletop, hind feet splaying with each step.
But what's wrong with him is also what's right.
Three months ago, the rat's lower body lay paralyzed due to a nerve-eating virus that mimics neurological disorders like amyotrophic lateral sclerosis (ALS). He scooted around on front legs, dragging his hindquarters like a tiny sled.
Vastag B. Stem Cells Step Closer to the Clinic. JAMA. 2001;285(13):1691-1693. doi:10.1001/jama.285.13.1691