Evidence map›Paper›PMID 32266720›Full record

ArticleJournal of anatomy2020

Biological clocks and incremental growth line formation in dentine.

Amanda M Papakyrikos, Manish Arora, Christine Austin, Julia C Boughner, Terence D Capellini, Heather L Dingwall, Quentin Greba, John G Howland, Akiko Kato, Xiu-Ping Wang and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Journal of anatomy, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing 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

18 citing papers in PubMed, 27 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Variation in Modern Human Deciduous Molar Enamel Formation Time.American journal of biological anthropology · 2025
    Article
  6. The circadian clock in enamel development.International journal of oral science · 2024
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. A potential role ofFrontiers in physiology · 2022
    Article
  13. Review
  14. Article
  15. Review
  16. Review
  17. Article
  18. 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

11 authors at 5 institutions in 4 countries.

Amanda M PapakyrikosDepartment of Anthropology, Wellesley College, Wellesley, MA, USA.
Manish AroraDepartment of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
Christine AustinDepartment of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
Julia C BoughnerDepartment of Anatomy, Physiology and Pharmacology, College of Medicine, University of Saskatchewan, Saskatoon, SK, Canada.ORCID 0000-0003-1147-364X
Terence D CapelliniDepartment of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA.
Heather L DingwallDepartment of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA.
Quentin GrebaDepartment of Anatomy, Physiology and Pharmacology, College of Medicine, University of Saskatchewan, Saskatoon, SK, Canada.
John G HowlandDepartment of Anatomy, Physiology and Pharmacology, College of Medicine, University of Saskatchewan, Saskatoon, SK, Canada.ORCID 0000-0003-3326-7118
Akiko KatoDepartment of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA.
Xiu-Ping WangDepartment of Developmental Biology, Harvard School of Dental Medicine, Boston, MA, USA.
Tanya M SmithDepartment of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA.ORCID 0000-0001-8175-8208
Harvard University · USUniversity of Saskatchewan · CAIcahn School of Medicine at Mount Sinai · USGriffith University · AUWellesley College · US

Funding

Howard Hughes Medical Institute
6 · The paper itself

Abstract

Dentine- and enamel-forming cells secrete matrix in consistent rhythmic phases, resulting in the formation of successive microscopic growth lines inside tooth crowns and roots. Experimental studies of various mammals have proven that these lines are laid down in subdaily, daily (circadian), and multidaily rhythms, but it is less clear how these rhythms are initiated and maintained. In 2001, researchers reported that lesioning the so-called master biological clock, the suprachiasmatic nucleus (SCN), halted daily line formation in rat dentine, whereas subdaily lines persisted. More recently, a key clock gene (Bmal1) expressed in the SCN in a circadian manner was also found to be active in dentine- and enamel- secretory cells. To probe these potential neurological and local mechanisms for the production of rhythmic lines in teeth, we reexamined the role of the SCN in growth line formation in Wistar rats and investigated the presence of daily lines in Bmal1 knockout mice (Bmal1

Indexed as

AnimalsARNTL Transcription FactorsBiological ClocksCircadian RhythmDentinMiceMice, KnockoutRatsRats, WistarARNTL Transcription FactorsBmal1 protein, mousebiological rhythmBmal1circadian rhythmclock genedental developmentenamelincremental featuresubdaily rhythmsuprachiasmatic nucleusultradian rhythm

Identifiers

PMID32266720
PMCPMC7369199
OpenAlexW3015016632

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.