The Scotsman newspaper has a good article this morning looking at the risks of "stem cell tourism," the practice of going aborad for treatments banned at home.
"I felt I had nothing to lose. I am just going to get worse and worse anyway. I thought I'd just take the bull by the horns and go for it." Moira Ogilvie was desperate. So the multiple sclerosis sufferer joined an increasing number of Scots going overseas for experimental stem-cell treatment not available in the UK.
Ogilvie admits later in the article she has no idea if the treatment, in China, helped -- but has no regrets.
"I didn't see it get better. Whether it would have got worse quicker, I don't know. It is still very, very slowly getting worse, but I wouldn't say a great deal worse than what it was just over a year ago. Whether what's happening with me would have happened without the stem cells, nobody knows."
Dr Insoo Hyun, from the US-based International Society for Stem Cell Research, warned against the unproven stem cell therapies.
"My sense is this is a growing problem," he said. "There are a number of studies showing a proliferation of these stem-cell clinics popping up across the world. Patients need to know there are no proven therapies using embryonic stem cells."
In a tragic case, a recent study revealed that an Israeli boy with ataxia telangiectasia, or A-T, a degenerative brain disease, who travelled to Moscow for treatment ended up with brain tumours years later caused by the stem cells.