Monozygotic twins concordant for narcolepsy-cataplexy without any detectable abnormality in the hypocretin (orexin) pathway

被引:42
作者
Khatami, R
Maret, S
Werth, E
Rétey, J
Schmid, D
Maly, F
Tafti, M
Bassetti, CL [1 ]
机构
[1] Univ Zurich Hosp, Dept Neurol, CH-8091 Zurich, Switzerland
[2] Univ Zurich Hosp, Inst Clin Chem, CH-8091 Zurich, Switzerland
[3] Univ Zurich, Inst Pharmacol & Toxicol, Sect Psychopharmacol & Sleep Res, CH-8006 Zurich, Switzerland
关键词
D O I
10.1016/S0140-6736(04)15951-5
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Narcolepsy with cataplexy is thought to be a hypocretin ligand or hypocretin receptor deficiency syndrome caused by genetic and environmental factors. We looked for an abnormality of the hypocretin pathway in HLA-DQBI*0602-positive monozygotic twins who were concordant for narcolepsy-cataplexy. They had normal cerebrospinal fluid concentrations of hypocretin-1, and we found no mutation in the prepro-hypocretin gene or either hypocretin receptor gene. Our finding points to the existence of presumably genetic forms of narcolepsy with cataplexy without any demonstrable defect in the hypocretin pathway.
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页码:1199 / 1200
页数:2
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