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LEARNING CENTER

Learn more about genetic testing

How is narcolepsy diagnosed?

Narcolepsy diagnosis is based on symptoms, physical examination and sleep records. Since the major symptoms are non-specific to narcolepsy, several specialized tests such as polysomnograms

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What is narcolepsy?

Narcolepsy is a condition characterized by extreme daytime sleepiness. Many affected people also suffer from sudden but temporary muscle weakness, known as cataplexy.

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What is the HLA-DQB1 Gene?

The HLA-DQB1 gene is one of more than 200 genes in the HLA gene family. HLA genes are clustered on chromosome 6 and encode components of the human leukocyte antigen (HLA)

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