rrramse at HOTMAIL.COM ("Rhonda Ramseur") writes:
> In my Vertebrate Physiology class we are studying Parkinsons disease,
> Huntingtons disease, etc. I know that Parkinson's disease deals with the
> degeneration of dopamine cells in the brain, but what I don't know is how
> and why these cells begin to break down.
Nor does anybody else. In so-called "idiopathic" Parkinson's (the
most common kind), the cause of dopamine cell loss is not known.
There are other things, such as encephalitis or abusing a drug called
MPTP, that can kill dopamine cells and cause a syndrome very similar
to Parkinson's disease; but Parkinson's itself remains a mystery.
> I have done a lot of research and
> I still can not find the answer to this question. If anyone could help me I
> would appreciate it.