I have a GBA mutation L444P. Evidence not discussed in the paper indicates it is one of the most common GBA mutations world wide, if not the most common. 23andme currently doesn’t test for it. I got this result from Genos that was verified by the MJF PPMI initative. It took 2 tries by Indiana U to test for the right variant. I have joined one of several clinical trials targeting GBA mutations and was tested again. It appears no one trusts any test but their own.
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