Evidence map›Paper›PMID 11710975›Full record

ReviewPhilosophical transactions of the Royal Society of London. Series B, Biological sciences2001

Circadian systems: different levels of complexity.

T Roenneberg, M Merrow

Abstract readReview
In one paragraph

Review in Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
–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

13 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Circuit topology and the evolution of robustness in two-gene circadian oscillators.Proceedings of the National Academy of Sciences of the United States of America · 2005
    Article
  7. Article
  8. Article
  9. The Neurospora circadian clock: simple or complex?Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2001
    Review
  10. Cellular signalling and the complexity of biological timing: insights from the ultradian clock of Schizosaccharomyces pombe.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2001
    Review
  11. Genetic interactions between clock mutations in Neurospora crassa: can they help us to understand complexity?Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2001
    Review
  12. Picking out parallels: plant circadian clocks in context.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2001
    Review
  13. Flies, clocks and evolution.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2001
    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

2 authors.

T RoennebergInstitute for Medical Psychology, Chronobiology, Goethestrasse 31, D-8 0336 München, Germany. till.roenneberg@imp.med.uni-muenchen.de
M Merrow

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

After approximately 50 years of circadian research, especially in selected circadian model systems (Drosophila, Neurospora, Gonyaulax and, more recently, cyanobacteria and mammals), we appreciate the enormous complexity of the circadian programme in organisms and cells, as well as in physiological and molecular circuits. Many of our insights into this complexity stem from experimental reductionism that goes as far as testing the interaction of molecular clock components in heterologous systems or in vitro. The results of this enormous endeavour show circadian systems that involve several oscillators, multiple input pathways and feedback loops that contribute to specific circadian qualities but not necessarily to the generation of circadian rhythmicity. For a full appreciation of the circadian programme, the results from different levels of the system eventually have to be put into the context of the organism as a whole and its specific temporal environment. This review summarizes some of the complexities found at the level of organisms, cells and molecules, and highlights similar strategies that apparently solve similar problems at the different levels of the circadian system.

Indexed as

Cell Physiological PhenomenaDrosophilaMammalsPlant Physiological PhenomenaAnimalsCircadian RhythmNeurospora

Identifiers

PMID11710975
PMCPMC1088544

What OpenQuestion holds

Textmetadata
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.