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- Title
A meta-analysis uncovers the first sequence variant conferring risk of Bell's palsy.
- Authors
Skuladottir, Astros Th.; Bjornsdottir, Gyda; Thorleifsson, Gudmar; Walters, G. Bragi; Nawaz, Muhammad Sulaman; Moore, Kristjan Helgi Swerford; Olason, Pall I.; Thorgeirsson, Thorgeir E.; Sigurpalsdottir, Brynja; Sveinbjornsson, Gardar; Eggertsson, Hannes P.; Magnusson, Sigurdur H.; Oddsson, Asmundur; Bjornsdottir, Anna; Vikingsson, Arnor; Sveinsson, Olafur A.; Hrafnsdottir, Maria G.; Sigurdardottir, Gudrun R.; Halldorsson, Bjarni V.; Hansen, Thomas Folkmann
- Abstract
Bell's palsy is the most common cause of unilateral facial paralysis and is defined as an idiopathic and acute inability to control movements of the facial muscles on the affected side. While the pathogenesis remains unknown, previous studies have implicated post-viral inflammation and resulting compression of the facial nerve. Reported heritability estimates of 4–14% suggest a genetic component in the etiology and an autosomal dominant inheritance has been proposed. Here, we report findings from a meta-analysis of genome-wide association studies uncovering the first unequivocal association with Bell's palsy (rs9357446-A; P = 6.79 × 10−23, OR = 1.23; Ncases = 4714, Ncontrols = 1,011,520). The variant also confers risk of intervertebral disc disorders (P = 2.99 × 10−11, OR = 1.04) suggesting a common pathogenesis in part or a true pleiotropy.
- Subjects
BELL'S palsy; ENTRAPMENT neuropathies; ETIOLOGY of diseases; FACIAL nerve diseases; GENETIC pleiotropy; INTERVERTEBRAL disk diseases
- Publication
Scientific Reports, 2021, Vol 11, Issue 1, p1
- ISSN
2045-2322
- Publication type
Article
- DOI
10.1038/s41598-021-82736-w