My wife has MS and we feel its effects every day, but I have to say that any path toward a cure that involves mixing human and animal DNA seems unacceptable. I may just be worry about a non-existent slippery slope, but it seems that playing with human and animal DNA doesn't pass the means vs ends test.
I know I'm having a hard time articulating my objection - maybe I need to reread Wells' "The Island of Dr Moreau."
I am so sorry your wife suffers with this debilitating disease - Prayers for a cure soon........