Evidence map›Paper›PMID 34003518›Full record

ArticleJournal of periodontology2021

Cementocyte alterations associated with experimentally induced cellular cementum apposition in Hyp mice.

Elis J Lira Dos Santos, Cristiane R Salmon, Michael B Chavez, Amanda B de Almeida, Michelle H Tan, Emily Y Chu, Enilson A Sallum, Marcio Z Casati, Karina G S Ruiz, Kamila R Kantovitz and 2 more

Erratum issuedOpen access · greenAbstract read
In one paragraph

Article in Journal of periodontology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
3.4field-weighted citation impact, top 7% 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

10 citing papers in PubMed, 24 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 4 institutions in 2 countries.

Elis J Lira Dos SantosDepartment of Prosthodontics and Periodontics, Division of Periodontics, Piracicaba Dental School, State University of Campinas, São Paulo, Brazil.ORCID 0000-0002-0324-3863
Cristiane R SalmonDepartment of Prosthodontics and Periodontics, Division of Periodontics, Piracicaba Dental School, State University of Campinas, São Paulo, Brazil.
Michael B ChavezDivision of Biosciences, College of Dentistry, The Ohio State University, Columbus, OH.
Amanda B de AlmeidaDepartment of Prosthodontics and Periodontics, Division of Periodontics, Piracicaba Dental School, State University of Campinas, São Paulo, Brazil.
Michelle H TanDivision of Biosciences, College of Dentistry, The Ohio State University, Columbus, OH.
Emily Y ChuNational Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), National Institutes of Health (NIH), Bethesda, MD.
Enilson A SallumDepartment of Prosthodontics and Periodontics, Division of Periodontics, Piracicaba Dental School, State University of Campinas, São Paulo, Brazil.
Marcio Z CasatiDepartment of Prosthodontics and Periodontics, Division of Periodontics, Piracicaba Dental School, State University of Campinas, São Paulo, Brazil.
Karina G S RuizDepartment of Prosthodontics and Periodontics, Division of Periodontics, Piracicaba Dental School, State University of Campinas, São Paulo, Brazil.
Kamila R KantovitzDepartment of Dental Materials, São Leopoldo Mandic Research Center, Campinas, São Paulo, Brazil.
Brian L FosterDivision of Biosciences, College of Dentistry, The Ohio State University, Columbus, OH.
Francisco H Nociti JúniorDepartment of Prosthodontics and Periodontics, Division of Periodontics, Piracicaba Dental School, State University of Campinas, São Paulo, Brazil.
Universidade Estadual de Campinas (UNICAMP) · BRThe Ohio State University · USFaculdade São Leopoldo Mandic · BRNational Institutes of Health · US

Funding

Role of modulators of Pi/PPi in cementum formation and regenerationR00DE031148 · NIDCR · UNIVERSITY OF MARYLAND BALTIMORE · PI CHU, EMILY YIN · 2021 to 2023
$747k
Function of cementocytes in cellular cementum formation and resorptionR03DE028632 · NIDCR · OHIO STATE UNIVERSITY · PI FOSTER, BRIAN LEE · 2019 to 2020
$307k
NIDCR NIH HHS R00 DE031148NIDCR NIH HHS R03 DE028632
6 · The paper itself

Abstract

backgroundCellular cementum, a mineralized tissue covering apical tooth roots, grows by apposition to maintain the tooth in its occlusal position. We hypothesized that resident cementocytes would show morphological changes in response to cementum apposition, possibly implicating a role in cementum biology.

methodsMandibular first molars were induced to super-erupt (EIA) by extraction of maxillary molars, promoting rapid new cementum formation. Tissue and cell responses were analyzed at 6 and/or 21 days post-procedure (dpp).

resultsHigh-resolution micro-computed tomography (micro-CT) and confocal laser scanning microscopy showed increased cellular cementum by 21 dpp. Transmission electron microscopy (TEM) revealed that cementocytes under EIA were 50% larger than control cells, supported by larger pore sizes detected by micro-CT. Cementocytes under EIA displayed ultrastructural changes consistent with increased activity, including increased cytoplasm and nuclear size. We applied EIA to Hyp mutant mice, where cementocytes have perilacunar hypomineralization defects, to test cell and tissue responses in an altered mechanoresponsive milieu. Hyp and WT molars displayed similar super-eruption, with Hyp molars exhibiting 28% increased cellular cementum area versus 22% in WT mice at 21 dpp. Compared to control, Hyp cementocytes featured well-defined, disperse euchromatin and a thick layer of peripherally condensed heterochromatin in nuclei, indicating cellular activity. Immunohistochemistry (IHC) for cementum markers revealed intense dentin matrix protein-1 expression and abnormal osteopontin deposition in Hyp mice. Both WT and Hyp cementocytes expressed gap junction protein, connexin 43.

conclusionThis study provides new insights into the EIA model and cementocyte activity in association with new cementum formation.

Indexed as

Dental CementumToothAnimalsMiceMolarTooth RootX-Ray Microtomographyboneextracellular matrixhypophosphatemic ricketsperiodontiumtooth eruption

Identifiers

PMID34003518
PMCPMC8599496
OpenAlexW3162460112

What OpenQuestion holds

Textmetadata
LicenceTDM
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.