Fig. 2From: Early detection of Niemann-pick disease type C with cataplexy and orexin levels: continuous observation with and without MiglustatOrexin levels in narcolepsy type1 (NT1), NPC and idiopathic hypersomnia (IHS). The CSF orexin levels of NPC patients were significantly higher than those of patients with narcolepsy type 1 (p < 0.01) and lower than those of patients with idiopathic hypersomnia (p < 0.01), considered as the control group with normal CSF orexin levelsBack to article page