Evidence map›Paper›PMID 25358694›Full record

ArticleGenome biology2014

Genetic adaptation of the human circadian clock to day-length latitudinal variations and relevance for affective disorders.

Diego Forni, Uberto Pozzoli, Rachele Cagliani, Claudia Tresoldi, Giorgia Menozzi, Stefania Riva, Franca R Guerini, Giacomo P Comi, Elisabetta Bolognesi, Nereo Bresolin and 2 more

Abstract read
In one paragraph

Article in Genome biology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

22 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Population Genetics and Natural Selection in Rheumatic Disease.Rheumatic diseases clinics of North America · 2017
    Review
  14. Article
  15. Review
  16. Timing of meals: when is as critical as what and how much.American journal of physiology. Endocrinology and metabolism · 2017
    Review
  17. Review
  18. The Uromodulin Gene Locus Shows Evidence of Pathogen Adaptation through Human Evolution.Journal of the American Society of Nephrology : JASN · 2016
    Article
  19. Article
  20. Review
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

12 authors.

Diego ForniScientific Institute IRCCS E. Medea, 23842 Bosisio Parini, LC, Italy.
Uberto Pozzoli
Rachele Cagliani
Claudia Tresoldi
Giorgia Menozzi
Stefania Riva
Franca R Guerini
Giacomo P Comi
Elisabetta Bolognesi
Nereo Bresolin
Mario Clerici
Manuela Sironi

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe temporal coordination of biological processes into daily cycles is a common feature of most living organisms. In humans, disruption of circadian rhythms is commonly observed in psychiatric diseases,including schizophrenia, bipolar disorder, depression and autism. Light therapy is the most effective treatment for seasonal affective disorder and circadian-related treatments sustain antidepressant response in bipolar disorder patients. Day/night cycles represent a major circadian synchronizing signal and vary widely with latitude.

resultsWe apply a geographically explicit model to show that out-of-Africa migration, which led humans to occupy a wide latitudinal area, affected the evolutionary history of circadian regulatory genes. The SNPs we identify using this model display consistent signals of natural selection using tests based on population genetic differentiation and haplotype homozygosity. Signals of natural selection driven by annual photoperiod variation are detected for schizophrenia, bipolar disorder, and restless leg syndrome risk variants, in line with the circadian component of these conditions.

conclusionsOur results suggest that human populations adapted to life at different latitudes by tuning their circadian clock systems. This process also involves risk variants for neuropsychiatric conditions, suggesting possible genetic modulators for chronotherapies and candidates for interaction analysis with photoperiod-related environmental variables, such as season of birth, country of residence, shift-work or lifestyle habits.

Indexed as

Adaptation, BiologicalPhotoperiodCircadian ClocksEvolution, MolecularGene Regulatory NetworksGenetic Predisposition to DiseaseGeographyHaplotypesHuman MigrationHumansMood DisordersPhototherapyPolymorphism, Single Nucleotide

Identifiers

PMID25358694
PMCPMC4237747

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.