I am coming a little late to this discussion- just came across this one...
I am a possible carrier of huntingtons disease... my father had it, and my grandfather- also my uncle and my aunt have it... I have a 4 year old and a 1 year old... my DH and I discussed this issue before we decided if we would have kids... heres the thing... my parents had me... and I am glad they did personally- even if I find out I have huntingston... I have lived such a full life in just the past 32, almost 33 years, and I wouldn't trade a day of it.... I won't get tested because it changes your life if you find out you have it...
IF you have the gene, you will get HD and your kids will have a 50% chance of having it... IF you don't have the gene, end of story- you can't pass it on... my aunt got tested a year ago- she is 45 and thought she'd be showing signs if she had it, and she wasn't, but her kids are in their early 20's now and she wanted to know for sure, so they didn't have to wonder and ask the same questions your friend is--- unfortunatly she tested positive... she is a very strong person, a RN, and she is really really struggling with it... it affected us all... and to what good? now my cousins are in the same situation they were in before, except they now wonder when their mom is going to get sick and die... you can't change the situation...
as you posted, there is no cure, you will die from it... unless of course you--- get hit by a car crossing the street and die, or get cancer, or forget to wear flip flops in the gym and get staph and wait too long to have it treated... you get my point... it is a personal decision, and I wouldn't judge anyone's decision- my mom didn't want us to have kids without being tested... but it wasn't her decision, and I had 2 kids and my other bother, who also has not been tested, had to kids... and she respected our decision and LOVEs her grandkids... and will love them forever--- there was a post a little over a year ago... I posted a response on there to a woman about this subject... the link is below... I am not sure if this girl was for real or not... but my answer to her was very real...
I think it is impossible to give a right or wrong answer on this one... I made mine, and I will never wish I had decided differently... and I don't think my kids will either.
http://www.medhelp.org/posts/show/339318?personal_page_id=4747&post_id=post_2062621