Abstract：
:PAX6 gene mutations cause a variety of eye and central nervous system (CNS) abnormalities. Aniridia is often accompanied by CNS abnormalities such as pineal gland atrophy or hypoplasia, leading to disturbed circadian rhythm and sleep disorders. Less is known on the coincidence of narcolepsy in this patient group. We aimed to find out whether the circadian rhythm or sleep-wake structure was affected in patients with aniridia. Four members of a family segregating with congenital aniridia in two generations were included in the study. The patients were subjected to genetic testing for a PAX6 mutation, multiple sleep latency test, whole-brain magnetic resonance imaging (MRI), hypocretin-1 in cerebrospinal fluid, and Human Leukocyte Antigen DQ beta1*06:02. All four members were heterozygous for the pathogenic c.959-1G>A mutation in the PAX6 gene. Sleep disturbance was observed in all family members. The index patient was diagnosed with narcolepsy. MRI showed a hypoplastic pineal gland in all members. We describe the first case of a patient with PAX6 haploinsufficiency, aniridia and pineal gland hypoplasia diagnosed with narcolepsy type-1, suggesting a complex sleep disorder pathogenesis.
journal_name
J Sleep Resjournal_title
Journal of sleep researchauthors
Berntsson SG,Kristoffersson A,Daniilidou M,Dahl N,Ekström C,Semnic R,Markström A,Niemelä V,Partinen M,Hallböök F,Landtblom AMdoi
10.1111/jsr.12982subject
Has Abstractpub_date
2020-12-01 00:00:00pages
e12982issue
6eissn
0962-1105issn
1365-2869journal_volume
29pub_type
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