Genetic testing which was performed for auxiliary diagnosis, showed the expression of HLA-DBQ1*0301 and HLA-DBQ1*0603 and no HLA-DBQ1*0602 abnormalities typical of narcolepsy.[5] A Lumbar test performed 8 months after the patient initial hospitalization, with the patient consent, showed that the orexin (hypocretin-1) concentration in the cerebrospinal fluid (CSF) was 339.6 pg/mL (cutoff value for narcolepsy: ≤110 pg/mL)[6] and did not decrease. This evidence concerns the gene HCRT and narcolepsy.