PMID- 31606740 OWN - NLM STAT- MEDLINE DCOM- 20210414 LR - 20210414 IS - 1550-9109 (Electronic) IS - 0161-8105 (Linking) VI - 43 IP - 3 DP - 2020 Mar 12 TI - HLA and sleep parameter associations in post-H1N1 narcolepsy type 1 patients and first-degree relatives. LID - zsz239 [pii] LID - 10.1093/sleep/zsz239 [doi] AB - STUDY OBJECTIVES: To explore HLA (human leukocyte antigen) in post-H1N1 narcolepsy type 1 patients (NT1), first-degree relatives and healthy controls, and assess HLA associations with clinical and sleep parameters in patients and first-degree relatives. METHODS: Ninety post-H1N1 NT1 patients and 202 of their first-degree relatives were HLA-genotyped (next generation sequencing) and phenotyped (semistructured interviews, Stanford Sleep Questionnaire, polysomnography, and multiple sleep latency test). HLA allele distributions were compared between DQB1*06:02-heterozygous individuals (77 patients, 59 parents, 1230 controls). A subsample (74 patients, 114 relatives) was investigated for associations between HLA-loci and continuous sleep variables using logistic regression. Identified candidate HLA-loci were explored for HLA allele associations with hypnagogic hallucinations and sleep paralysis in 90 patients, and patient allele findings were checked for similar associations in 202 relatives. RESULTS: DQB1*06:02 heterozygous post-H1N1 NT1 patients (84.4% H1N1-vaccinated) showed several significant HLA associations similar to those reported previously in samples of mainly sporadic NT1, i.e. DQB1*03:01, DRB1*04:01, DRB1*04:02, DRB1*04:07, DRB1*11:04, A*25:01, B*35:03, and B*51:01, and novel associations, i.e. B*14:02, C*01:02, and C*07:01. Parents HLA alleles did not deviate significantly from controls. The HLA-C locus was associated with sleep parameters in patients and relatives. In patients C*02:02 seems to be associated with protective effects against sleep paralysis and hypnagogic hallucinations. CONCLUSIONS: Our findings of similar risk/protective HLA-alleles in post-H1N1 as in previous studies of mainly sporadic narcolepsy support similar disease mechanisms. We also report novel allelic associations. Associations between HLA-C and sleep parameters were seen independent of NT1 diagnosis, supporting involvement of HLA-C in sleep subphenotypes. CI - (c) Sleep Research Society 2019. Published by Oxford University Press on behalf of the Sleep Research Society. All rights reserved. For permissions, please e-mail journals.permissions@oup.com. FAU - Juvodden, Hilde T AU - Juvodden HT AD - Norwegian Centre of Expertise for Neurodevelopmental Disorders and Hypersomnias (NevSom), Department of Rare Disorders, Oslo University Hospital, Ulleval, Norway, Norway. AD - Institute of Clinical Medicine, University of Oslo, Norway. FAU - Viken, Marte K AU - Viken MK AD - Department of Immunology, Oslo University Hospital, Rikshospitalet, Norway. FAU - Nordstrand, Sebjorg E H AU - Nordstrand SEH AD - Norwegian Centre of Expertise for Neurodevelopmental Disorders and Hypersomnias (NevSom), Department of Rare Disorders, Oslo University Hospital, Ulleval, Norway, Norway. AD - Institute of Clinical Medicine, University of Oslo, Norway. FAU - Viste, Rannveig AU - Viste R AD - Norwegian Centre of Expertise for Neurodevelopmental Disorders and Hypersomnias (NevSom), Department of Rare Disorders, Oslo University Hospital, Ulleval, Norway, Norway. AD - Institute of Clinical Medicine, University of Oslo, Norway. FAU - Westlye, Lars T AU - Westlye LT AD - NORMENT, Division of Mental Health and Addiction, Oslo University Hospital, Norway. AD - Department of Psychology, University of Oslo, Norway. FAU - Thorsby, Per M AU - Thorsby PM AD - Hormone Laboratory, Department of Medical Biochemistry, Oslo University Hospital, Aker, Norway Norway. FAU - Lie, Benedicte A AU - Lie BA AD - Department of Immunology, Oslo University Hospital, Rikshospitalet, Norway. AD - Department of Medical Genetics, University of Oslo and Oslo University Hospital, Norway. FAU - Knudsen-Heier, Stine AU - Knudsen-Heier S AD - Norwegian Centre of Expertise for Neurodevelopmental Disorders and Hypersomnias (NevSom), Department of Rare Disorders, Oslo University Hospital, Ulleval, Norway, Norway. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Sleep JT - Sleep JID - 7809084 RN - 0 (HLA-DQ beta-Chains) SB - IM MH - Alleles MH - Genotype MH - HLA-DQ beta-Chains/genetics MH - Humans MH - *Influenza A Virus, H1N1 Subtype MH - *Narcolepsy/genetics MH - Sleep/genetics OTO - NOTNLM OT - H1N1-vaccination OT - HLA OT - hypnagogic hallucinations OT - hypocretin OT - narcolepsy OT - sleep paralysis EDAT- 2019/10/14 06:00 MHDA- 2021/04/15 06:00 CRDT- 2019/10/14 06:00 PHST- 2019/05/03 00:00 [received] PHST- 2019/09/06 00:00 [revised] PHST- 2019/10/14 06:00 [pubmed] PHST- 2021/04/15 06:00 [medline] PHST- 2019/10/14 06:00 [entrez] AID - 5586722 [pii] AID - 10.1093/sleep/zsz239 [doi] PST - ppublish SO - Sleep. 2020 Mar 12;43(3):zsz239. doi: 10.1093/sleep/zsz239.