rs10825503 - PCDH15

Magnitude 2.2 · 1 study on file

Reported associations

  • Genome-wide analysis of insomnia in 1,331,010 individuals identifies new risk loci and functional pathways. - Nature genetics (2019) · Jansen PR, Watanabe K, Stringer S, Skene N, Bryois J, Hammerschlag AR, de Leeuw CA, Benjamins JS, Muñoz-Manchado AB, Nagel M, Savage JE, Tiemeier H, White T, Tung JY, Hinds DA, Vacic V, Wang X, Sullivan PF, van der Sluis S, Polderman TJC, Smit AB, Hjerling-Leffler J, Van Someren EJW, Posthuma D · PubMed 30804565

    Insomnia is the second most prevalent mental disorder, with no sufficient treatment available. Despite substantial heritability, insight into the associated genes and neurobiological pathways remains limited. Here, we use a large genetic association sample (n = 1,331,010) to detect novel loci and gain insight into the pathways, tissue and cell types involved in insomnia complaints. We identify 202 loci implicating 956 genes through positional, expression quantitative trait loci, and chromatin mapping. The meta-analysis explained 2.6% of the variance. We show gene set enrichments for the axonal part of neurons, cortical and subcortical tissues, and specific cell types, including striatal, hypothalamic, and claustrum neurons. We found considerable genetic correlations with psychiatric tr


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Lifestyle context

Concrete actions anchored to the cited research. We do not prescribe, we describe.

Discuss with your doctor

  • Baseline sleep assessment and insomnia risk stratification Moderate

    Genetic variant increases insomnia susceptibility; baseline assessment enables targeted preventive management

Lifestyle

  • Sleep hygiene optimization protocol Moderate

    Genetic predisposition to insomnia may be mitigated by structured sleep environment and schedule modification

    Consistent sleep-wake times; optimize temperature 65-68F, darkness, quiet; avoid screens 1 hour before bed

Screening

  • Annual insomnia symptom screening Moderate

    rs10825503-T allele associated with 3.4% increased insomnia odds; early detection enables preventive intervention

    Complete Insomnia Severity Index or Pittsburgh Sleep Quality Index annually; report results to provider