Association of narcolepsy-cataplexy with HLA-DRB1 and DQB1 in Mexican patients: a relationship between HLA and gender is suggested.

BMC Medical Genetics
C AlaezC Gorodezky

Abstract

Narcolepsy-cataplexy is characterized by excessive daytime sleepiness with recurrent episodes of irresistible sleep, cataplexy, hallucinations and sleep paralysis. Its aetiology is unknown, but it is positively associated with the human leukocyte antigens (HLA) in all studied populations. The purpose of the present study was to investigate the association of HLA class II DRB1/DQB1 alleles with narcolepsy-cataplexy in Mexican Mestizo patients. This is a case-control study of consecutive patients and ethnically matched controls. We included 32 patients diagnosed with typical narcolepsy-cataplexy, of the National Institute of Neurology, of the Institute of Psychiatry and at the Center of Narcolepsy at Stanford University. As healthy controls, 203 Mexican Mestizos were included. DRB1 alleles were identified using sequence based typing. A PCR-SSOP reverse dot blot was used for DQB1 typing. Allele frequency was calculated by direct counting and the significance of the differences was assessed using the Yates Chi square. Odds ratio and confidence intervals were evaluated. HLA-DRB1*1501 (OR = 8.2; pc < 0.0001) and DQB1*0602 (OR = 8.4; pc < 0.0001) were found positively associated with narcolepsy. When deleting DQB1*0602+ patients from ...Continue Reading

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Citations

Aug 7, 2012·Tissue Antigens·F HanE Mignot
Jan 5, 2011·Journal of Neuroimmunology·Bryan A BassigAlina V Brenner
Dec 1, 2011·Multiple Sclerosis : Clinical and Laboratory Research·Haritz IrizarDavid Otaegui
Dec 18, 2009·Southern Medical Journal·Faisal KhanMohsin Iqbal
Sep 7, 2018·Sleep & Breathing = Schlaf & Atmung·Saad M Al ShareefAhmed S BaHammam
Jul 19, 2019·Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova·A V MedvedevaM G Poluektov

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Methods Mentioned

BETA
dot blot

Software Mentioned

SPSS

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