Well, this is disappointing.
Last December, I wrote a story for Nature News about a new paper, published in Science Translational Medicine, which seemed to confirm narcolepsy as an autoimmune disease. Here’s what I wrote at the time:
Narcolepsy is mostly caused by the gradual loss of neurons that produce hypocretin, a hormone that keeps us awake. Many scientists had suspected that the immune system was responsible, but the Stanford team [led by Elizabeth Mellins and Emmanuel Mignot] has found the first direct evidence: a special group of CD4+ T cells (a type of immune cell) that targets hypocretin and is found only in people with narcolepsy.
“Up till now, ...