Abstract
Two stories on Parkinson's disease (PD) research appeared last month. The first (BBC, 2006a) discussed two papers published in Nature which found that symptoms in the inherited form of PD may be triggered by damaged mitochondria as a result of a protein mutation. This effect may damage muscle cells, leading to movement problems, and may also trigger neuronal degeneration among dopamine-producing neurones. The second report (BBC, 2006b) discussed research that investigated whether a single genetic mutation may be linked to the age of onset of symptoms. While it has been known for sometime that inheriting two copies of the abnormal Parkin gene can reduce the age of onset, it was reported that inheriting a single copy of this gene can also reduce the age of onset of PD.
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