Evidence map›Paper›PMID 30994046›Full record

ArticleJournal of biological rhythms2019

Neuronal Activity in Non-LNv Clock Cells Is Required to Produce Free-Running Rest:Activity Rhythms in Drosophila.

Nicholas Bulthuis, Katrina R Spontak, Benjamin Kleeman, Daniel J Cavanaugh

Abstract read
In one paragraph

Article in Journal of biological rhythms, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.7field-weighted citation impact, top 17% 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

17 citing papers in PubMed, 35 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. A four-oscillator model of seasonally adapted morning and evening activities in Drosophila melanogaster.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2024
    Review
  6. Article
  7. Dissecting neuron-specific functions of circadian genes using modified cell-specific CRISPR approaches.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  8. Dopamine and GPCR-mediated modulation of DN1 clock neurons gates the circadian timing of sleep.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  9. Article
  10. Article
  11. Dorsal clock neurons iniScience · 2021
    Article
  12. Article
  13. Integration of Circadian Clock Information in theJournal of biological rhythms · 2021
    Review
  14. Article
  15. Entrainment of theNeuroscience insights · 2020
    Review
  16. Article
  17. 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

4 authors at 1 institution in 1 country.

Nicholas BulthuisDepartment of Biology, Loyola University, Chicago, IL, USA.
Katrina R SpontakDepartment of Biology, Loyola University, Chicago, IL, USA.
Benjamin KleemanDepartment of Biology, Loyola University, Chicago, IL, USA.
Daniel J CavanaughDepartment of Biology, Loyola University, Chicago, IL, USA.ORCID 0000-0002-0068-3222
Loyola University Chicago · US

Funding

Molecular and Cellular Dissection of Circadian Output Pathways in DrosophilaR15GM128170 · NIGMS · LOYOLA UNIVERSITY OF CHICAGO · PI Daniel Cavanaugh · 2018 to 2026
$991k
NIGMS NIH HHS R15 GM128170
6 · The paper itself

Abstract

Circadian rhythms in behavior and physiology are produced by central brain clock neurons that can be divided into subpopulations based on molecular and functional characteristics. It has become clear that coherent behavioral rhythms result from the coordinated action of these clock neuron populations, but many questions remain regarding the organizational logic of the clock network. Here we used targeted genetic tools in Drosophila to eliminate either molecular clock function or neuronal activity in discrete clock neuron subsets. We find that neuronal firing is necessary across multiple clock cell populations to produce free-running rhythms of rest and activity. In contrast, such rhythms are much more subtly affected by molecular clock suppression in the same cells. These findings demonstrate that network connectivity can compensate for a lack of molecular oscillations within subsets of clock cells. We further show that small ventrolateral (sLNv) clock neurons, which have been characterized as master pacemakers under free-running conditions, cannot drive rhythms independent of communication between other cells of the clock network. In particular, we pinpoint an essential contribution of the dorsolateral (LNd) clock neurons, and show that manipulations that affect LNd function reduce circadian rhythm strength without affecting molecular cycling in sLNv cells. These results suggest a hierarchical organization in which circadian information is first consolidated among one or more clock cell populations before accessing output pathways that control locomotor activity.

Indexed as

Biological ClocksCircadian RhythmLocomotionAnimalsDrosophilaGenotypeMaleNeuronscircadiancircuitLNdsLNv

Identifiers

PMID30994046
PMCPMC7153773
OpenAlexW2939689818

What OpenQuestion holds

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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.