Evidence map›Paper›PMID 33568662›Full record

ArticleNature communications2021

Genetic determinants of daytime napping and effects on cardiometabolic health.

Hassan S Dashti, Iyas Daghlas, Jacqueline M Lane, Yunru Huang, Miriam S Udler, Heming Wang, Hanna M Ollila, Samuel E Jones, Jaegil Kim, Andrew R Wood and 5 more

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 136 papers, 9 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
136citing papers in PubMed, 9 pooled it
91.2field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

136 citing papers in PubMed, 9 syntheses or guidelines pooled it, 562 citations in OpenAlex.

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  10. Emerging genetics of sleep and circadian disorders.Current opinion in pediatrics · 2026
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  18. Sleep and dementia: Assessing established dementia-related factors using multivariable Mendelian randomization.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
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76 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

15 authors at 6 institutions in 4 countries.

Hassan S Dashti *Center for Genomic Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.ORCID 0000-0002-1650-679X
Iyas Daghlas *Center for Genomic Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
Jacqueline M LaneCenter for Genomic Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
Yunru Huang23andMe, Inc., Sunnyvale, CA, USA.
Miriam S UdlerCenter for Genomic Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.ORCID 0000-0003-3824-9162
Heming WangBroad Institute, Cambridge, MA, USA.ORCID 0000-0002-1486-7495
Hanna M OllilaCenter for Genomic Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
Samuel E JonesInstitute for Molecular Medicine FIMM, HiLIFE, University of Helsinki, Helsinki, Finland.ORCID 0000-0003-0153-922X
Jaegil KimGlaxoSmithKline, Waltham, MA, USA.
Andrew R WoodGenetics of Complex Traits, University of Exeter Medical School, Exeter, UK.
23andMe Research Team
Michael N WeedonGenetics of Complex Traits, University of Exeter Medical School, Exeter, UK.
Stella Aslibekyan23andMe, Inc., Sunnyvale, CA, USA.
Marta GarauletDivision of Sleep and Circadian Disorders, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA. garaulet@um.es.ORCID 0000-0002-4066-3509
Richa SaxenaCenter for Genomic Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA. rsaxena@mgh.harvard.edu.ORCID 0000-0003-2233-1065
23andMe (United States) · USBroad Institute · USUniversity of Exeter · GBBrigham and Women's Hospital · USGlaxoSmithKline (United States) · USUniversity of Helsinki · FI

Funding

TRAINING IN SLEEP, CIRCADIAN &RESPIRATORY NEUROBIOLOGYT32HL007901 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI Charles A Czeisler · 1998 to 2026
$18.5M
Phenotypic and Molecular Signatures for Sleep Apnea and Related MorbiditiesR35HL135818 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI REDLINE, SUSAN S. · 2017 to 2023
$7.2M
Genetics of chronotype and impact on metabolic diseaseR01DK107859 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI Richa Saxena · 2016 to 2026
$4.0M
Impact of Malatonin, Food Timing and Receptor Variant on Type 2 Diabetes RiskR01DK105072 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI SAXENA, RICHA, SCHEER, FRANK A · 2016 to 2020
$3.2M
Clinical Implications of Genetically Defined Diabetes Subtypes and Application to Electronic Health Medical Record SystemsK23DK114551 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI UDLER, MIRIAM SARGON · 2017 to 2021
$1000k
Impact of genetic variants on sleep timing and type 2 diabetes riskF32DK102323 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI LANE, JACQUELINE MARIE · 2015 to 2016
$116k
Medical Research Council MR/M005070/1Medical Research Council MR/P012167/1NHLBI NIH HHS R35 HL135818NHLBI NIH HHS T32 HL007901NIDDK NIH HHS F32 DK102323NIDDK NIH HHS K23 DK114551NIDDK NIH HHS L30 DK106874NIDDK NIH HHS R01 DK105072NIDDK NIH HHS R01 DK107859
6 · The paper itself

Abstract

Daytime napping is a common, heritable behavior, but its genetic basis and causal relationship with cardiometabolic health remain unclear. Here, we perform a genome-wide association study of self-reported daytime napping in the UK Biobank (n = 452,633) and identify 123 loci of which 61 replicate in the 23andMe research cohort (n = 541,333). Findings include missense variants in established drug targets for sleep disorders (HCRTR1, HCRTR2), genes with roles in arousal (TRPC6, PNOC), and genes suggesting an obesity-hypersomnolence pathway (PNOC, PATJ). Association signals are concordant with accelerometer-measured daytime inactivity duration and 33 loci colocalize with loci for other sleep phenotypes. Cluster analysis identifies three distinct clusters of nap-promoting mechanisms with heterogeneous associations with cardiometabolic outcomes. Mendelian randomization shows potential causal links between more frequent daytime napping and higher blood pressure and waist circumference.

Indexed as

SleepAdultAgedBlood PressureCardiometabolic Risk FactorsCohort StudiesFemaleGenome-Wide Association StudyHumansMaleMiddle AgedMyocytes, CardiacTRPC6 Cation ChannelUnited KingdomWaist CircumferenceTRPC6 Cation ChannelTRPC6 protein, human

Identifiers

PMID33568662
PMCPMC7876146
OpenAlexW3129064443

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.