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Scientists make progress on mechanism for stopping genetic diseases

Scientists on Wednesday reported that, in pioneering experiments on human eggs, they had replaced a genetic mechanism blamed for crippling diseases. The laboratory breakthrough could one day lead to human trials to avert so-called mitochondrial disorders, they said. Other experts praised the work but sounded caution. Described in the journal…

Study: Brain energy crisis may spark Parkinson’s

HEALTHBEAT: Failing energy factories in the brain suspected in illnesses like Parkinson’s Parkinson’s disease may stem from an energy crisis in the brain, years before symptoms appear. If the research pans out, it points to a possible new approach for Parkinson’s: Giving a boost to a key power switch inside…