Evidence map›Paper›PMID 25989161›Full record

ArticleScientific reports2015

Genetic association study of circadian genes with seasonal pattern in bipolar disorders.

Pierre Alexis Geoffroy, Mohamed Lajnef, Frank Bellivier, Stéphane Jamain, Sébastien Gard, Jean-Pierre Kahn, Chantal Henry, Marion Leboyer, Bruno Etain

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
3.4field-weighted citation impact, top 8% 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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 56 citations in OpenAlex.

  1. Pooled it
  2. LncRNACells · 2026
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  17. Mice with reduced DAT levels recreate seasonal-induced switching between states in bipolar disorder.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2018
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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

9 authors at 2 institutions in 1 country.

Pierre Alexis Geoffroy1] Inserm, U1144, Paris, F-75006, France [2] AP-HP, GH Saint-Louis - Lariboisière - Fernand Widal, Pôle Neurosciences, 75475 Paris Cedex 10, France [3] Université Paris Descartes, UMR-S 1144, Paris, F-75006, France [4] Fondation FondaMental, Créteil, 94000, France.
Mohamed Lajnef1] Fondation FondaMental, Créteil, 94000, France [2] INSERM, U955, Psychiatrie génétique, Créteil, 94000, France [3] AP-HP, Hôpitaux Universitaires Albert Chenevier-Henri Mondor , DHU PePSY, Pôle de Psychiatrie, Créteil, 94000, France.
Frank Bellivier1] Inserm, U1144, Paris, F-75006, France [2] AP-HP, GH Saint-Louis - Lariboisière - Fernand Widal, Pôle Neurosciences, 75475 Paris Cedex 10, France [3] Université Paris Descartes, UMR-S 1144, Paris, F-75006, France [4] Fondation FondaMental, Créteil, 94000, France.
Stéphane Jamain1] Fondation FondaMental, Créteil, 94000, France [2] INSERM, U955, Psychiatrie génétique, Créteil, 94000, France [3] Université Paris Est, Faculté de médecine, Créteil, 94000, France.
Sébastien Gard1] Fondation FondaMental, Créteil, 94000, France [2] Hôpital Charles Perrens, Centre Expert Trouble Bipolaire, Service de psychiatrie adulte, Pôle 3-4-7, Bordeaux, 33000, France.
Jean-Pierre Kahn1] Fondation FondaMental, Créteil, 94000, France [2] Service de Psychiatrie et Psychologie Clinique, CHU de Nancy, Hôpitaux de Brabois, Vandoeuvre Les Nancy, 54500, France.
Chantal Henry1] Fondation FondaMental, Créteil, 94000, France [2] INSERM, U955, Psychiatrie génétique, Créteil, 94000, France [3] AP-HP, Hôpitaux Universitaires Albert Chenevier-Henri Mondor , DHU PePSY, Pôle de Psychiatrie, Créteil, 94000, France [4] Université Paris Est, Faculté de médecine, Créteil, 94000, France.
Marion Leboyer1] Fondation FondaMental, Créteil, 94000, France [2] INSERM, U955, Psychiatrie génétique, Créteil, 94000, France [3] AP-HP, Hôpitaux Universitaires Albert Chenevier-Henri Mondor , DHU PePSY, Pôle de Psychiatrie, Créteil, 94000, France [4] Université Paris Est, Faculté de médecine, Créteil, 94000, France.
Bruno Etain1] Fondation FondaMental, Créteil, 94000, France [2] INSERM, U955, Psychiatrie génétique, Créteil, 94000, France [3] AP-HP, Hôpitaux Universitaires Albert Chenevier-Henri Mondor , DHU PePSY, Pôle de Psychiatrie, Créteil, 94000, France [4] Université Paris Est, Faculté de médecine, Créteil, 94000, France.
Fondation FondaMental · FRInserm · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

About one fourth of patients with bipolar disorders (BD) have depressive episodes with a seasonal pattern (SP) coupled to a more severe disease. However, the underlying genetic influence on a SP in BD remains to be identified. We studied 269 BD Caucasian patients, with and without SP, recruited from university-affiliated psychiatric departments in France and performed a genetic single-marker analysis followed by a gene-based analysis on 349 single nucleotide polymorphisms (SNPs) spanning 21 circadian genes and 3 melatonin pathway genes. A SP in BD was nominally associated with 14 SNPs identified in 6 circadian genes: NPAS2, CRY2, ARNTL, ARNTL2, RORA and RORB. After correcting for multiple testing, using a false discovery rate approach, the associations remained significant for 5 SNPs in NPAS2 (chromosome 2:100793045-100989719): rs6738097 (pc = 0.006), rs12622050 (pc = 0.006), rs2305159 (pc = 0.01), rs1542179 (pc = 0.01), and rs1562313 (pc = 0.02). The gene-based analysis of the 349 SNPs showed that rs6738097 (NPAS2) and rs1554338 (CRY2) were significantly associated with the SP phenotype (respective Empirical p-values of 0.0003 and 0.005). The associations remained significant for rs6738097 (NPAS2) after Bonferroni correction. The epistasis analysis between rs6738097 (NPAS2) and rs1554338 (CRY2) suggested an additive effect. Genetic variations in NPAS2 might be a biomarker for a seasonal pattern in BD.

Indexed as

AdultBasic Helix-Loop-Helix ProteinsBipolar DisorderCircadian ClocksCircadian RhythmCLOCK ProteinsCryptochromesFemaleFranceGenetic Association StudiesGenetic MarkersGenetic Predisposition to DiseaseHumansMaleMelatoninNerve Tissue ProteinsBasic Helix-Loop-Helix ProteinsCLOCK ProteinsCRY2 protein, humanCryptochromesGenetic MarkersMelatoninNerve Tissue ProteinsNPAS2 protein, human

Identifiers

PMID25989161
PMCPMC4437291
OpenAlexW891458323

What OpenQuestion holds

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LicenceCC BY
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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.