Previous studies had already pointed to genetic factors as playing a role.
An immediate family member with narcolepsy increases one's chances of having the disease by 10 to 40 times.
It was found that all Japanese suffering from the disease carried another genetic variant. But fully ten percent of the Japanese population shared that same mutation, so researchers suspected the existence of additional genetic drivers as well.
The authors of the new study said their findings could point the way to "new therapeutic approaches" designed to target the neurochemical reactions patterned by the wayward genetic material.
The research was published in journal Nature Genetics, part of the British-based Nature Publishing Group.
Source-AFP
RAS/SK