Evidence map›Paper›PMID 22429763›Full record

ArticleCell proliferation2012

Hypoxia induces apoptosis and autophagic cell death in human periodontal ligament cells through HIF-1α pathway.

Z-C Song, W Zhou, R Shu, J Ni

Open access · bronzeAbstract read
In one paragraph

Article in Cell proliferation, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 1 pooled it
4.5field-weighted citation impact, top 5% 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

38 citing papers in PubMed, 1 synthesis or guideline pooled it, 84 citations in OpenAlex.

  1. Pooled it
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  10. Implications of sleep disorders for periodontitis.Sleep & breathing = Schlaf & Atmung · 2023
    Review
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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 2 institutions in 1 country.

Z-C SongDepartment of Periodontology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
W Zhou
R Shu
J Ni
Shanghai Ninth People's Hospital · CNShanghai Jiao Tong University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesOxygen deficiency caused by occlusal trauma and smoking can be present in patients with periodontitis. However, biochemical events important in periodontal tissues during hypoxia remain unclear. The aim of this study was to investigate effects of hypoxia on apoptosis and autophagy of human periodontal ligament cells (PDLCs) in vitro. MATERIALS AND

methodsHuman PDLCs were obtained and cultured in vitro. Cell viability, apoptosis, autophagy and gene and protein expression were measured in presence and absence of cobalt chloride (CoCl(2)).

resultsCoCl(2) induced cytotoxicity of human PDLCs in a concentration-dependent manner dependent on macromolecular synthesis, and resulted in apoptosis and mitochondrial dysfunction. CoCl(2) also induced redistribution of autophagy marker LC3, increased ratio of LC3-IIto LC3-Iand function of lysosomes. Furthermore, CoCl(2) promoted expression of HIF-1α following upregulation of expressions of Bnip3. Significant increases in expression of IL-1β and MMP-8 were also observed. All these results were reversed by pre-treatment with antioxidant N-acetylcysteine.

conclusionsOur data showed that CoCl(2) could induce cytotoxicity through mitochondria- apoptotic and autophagic pathways involved in HIF-1α. CoCl(2 -treated PDLCs may serve as an in vitro model for studies of molecular mechanisms in periodontitis.

Indexed as

ApoptosisAutophagyAntimutagenic AgentsCell HypoxiaCells, CulturedCell SurvivalCobaltHumansHypoxia-Inducible Factor 1, alpha SubunitInterleukin-1betaMatrix Metalloproteinase 8Membrane Potential, MitochondrialMembrane ProteinsMicrotubule-Associated ProteinsPeriodontal LigamentProto-Oncogene ProteinsAntimutagenic AgentsBNIP3 protein, humanCobaltcobaltous chlorideHypoxia-Inducible Factor 1, alpha SubunitInterleukin-1betaMAP1LC3A protein, humanMatrix Metalloproteinase 8Membrane ProteinsMicrotubule-Associated ProteinsProto-Oncogene Proteins

Identifiers

PMID22429763
PMCPMC6496313
OpenAlexW1976869962

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.