Evidence map›Paper›PMID 25820768›Full record

ArticleAmino acids2015

Anhedonic behavior in cryptochrome 2-deficient mice is paralleled by altered diurnal patterns of amygdala gene expression.

Giorgia Savalli, Weifei Diao, Stefanie Berger, Marianne Ronovsky, Timo Partonen, Daniela D Pollak

Open access · hybridAbstract read
In one paragraph

Article in Amino acids, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.2field-weighted citation impact, top 13% 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

25 citing papers in PubMed, 48 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Review
  5. Review
  6. Article
  7. Review
  8. Review
  9. Mood phenotypes in rodent models with circadian disturbances.Neurobiology of sleep and circadian rhythms · 2022
    Review
  10. Article
  11. Article
  12. Review
  13. Uncovering the Potential Mechanisms ofDrug design, development and therapy · 2022
    Article
  14. Article
  15. Vulnerability to helpless behavior is regulated by the circadian clock component CRYPTOCHROME in the mouse nucleus accumbens.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  16. Article
  17. A role for miR-132 in learned safety.Scientific reports · 2019
    Article
  18. Article
  19. Review
  20. Article
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

6 authors at 2 institutions in 2 countries.

Giorgia SavalliDepartment of Neurophysiology and Neuropharmacology, Center for Physiology and Pharmacology, Medical University of Vienna, Schwarzspanierstrasse, 17, 1090, Vienna, Austria.
Weifei Diao
Stefanie Berger
Marianne Ronovsky
Timo Partonen
Daniela D Pollak
Medical University of Vienna · ATFinnish Institute for Health and Welfare · FI

Funding

Austrian Science Fund FWF P 22424
6 · The paper itself

Abstract

Mood disorders are frequently paralleled by disturbances in circadian rhythm-related physiological and behavioral states and genetic variants of clock genes have been associated with depression. Cryptochrome 2 (Cry2) is one of the core components of the molecular circadian machinery which has been linked to depression, both, in patients suffering from the disease and animal models of the disorder. Despite this circumstantial evidence, a direct causal relationship between Cry2 expression and depression has not been established. Here, a genetic mouse model of Cry2 deficiency (Cry2 (-/-) mice) was employed to test the direct relevance of Cry2 for depression-like behavior. Augmented anhedonic behavior in the sucrose preference test, without alterations in behavioral despair, was observed in Cry2 (-/-) mice. The novelty suppressed feeding paradigm revealed reduced hyponeophagia in Cry2 (-/-) mice compared to wild-type littermates. Given the importance of the amygdala in the regulation of emotion and their relevance for the pathophysiology of depression, potential alterations in diurnal patterns of basolateral amygdala gene expression in Cry2 (-/-) mice were investigated focusing on core clock genes and neurotrophic factor systems implicated in the pathophysiology of depression. Differential expression of the clock gene Bhlhe40 and the neurotrophic factor Vegfb were found in the beginning of the active (dark) phase in Cry2 (-/-) compared to wild-type animals. Furthermore, amygdala tissue of Cry2 (-/-) mice contained lower levels of Bdnf-III. Collectively, these results indicate that Cry2 exerts a critical role in the control of depression-related emotional states and modulates the chronobiological gene expression profile in the mouse amygdala.

Indexed as

Gene ExpressionAmygdalaAnimalsAnxietyBrain-Derived Neurotrophic FactorCircadian RhythmCryptochromesDepressionFood PreferencesMaleMice, 129 StrainMice, Inbred C57BLMice, KnockoutVascular Endothelial Growth Factor BBrain-Derived Neurotrophic FactorCry2 protein, mouseCryptochromesVascular Endothelial Growth Factor Bvascular endothelial growth factor B, mouse

Identifiers

PMID25820768
PMCPMC4458264
OpenAlexW2027166786

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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.