Powerful new genomics method can be used to reveal the causes of rare genetic diseases

The technique makes use of the fact that people inherit two copies or ''alleles'' of virtually every gene, one from the mother and one from the father. The new method compares activity levels of maternal and paternal alleles across the genome and detects when the activity of an allele lies far enough outside the normal range to be a plausible cause of disease.

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Rare sleep disorder common among veterans with PTSD

Military veterans with post-traumatic stress disorder or concussion suffer from a thrashing form of sleep behavior at a rate that is far higher than the general population, according to a new study. Researchers next want to probe whether the sleep disorder might provide an early signal of the development of neurodegenerative conditions such as Parkinson's disease.

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