Medical regulators have been warning that the downside of unproven stem cell treatments isn't merely that they won't work, but that they can be life-threatening.
Doctors at Memorial University of Newfoundland discovered that the olfactory cells had never differentiated into neuronal cells, as the Portuguese clinic apparently expected, but kept growing on their own, producing a tumour of nasal cells that's now too large to be surgically removed."This was a young man with a life-altering injury and would have tried anything for a chance to walk again," Nanette Hache, one of the physicians, told me.
The researchers observed, however, that their list was almost certainly incomplete, in part because the true number of treatments is unknown. The evidence at hand, however, indicated "substantial patient exploitation using the 'power of hope.'" Clinics offering stem cell-based nostrums in the US typically use cells derived from fat, removed from patients by liposuction, purportedly treated to concentrate the stem cells, which are then injected into a customer's body.
Source: Holiday News (holidaynews.net)
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