Evidence map›Paper›PMID 22382680›Full record

ArticleMolecules and cells2012

Nicotinic acetylcholine receptor α7 and β4 subunits contribute nicotine-induced apoptosis in periodontal ligament stem cells.

So Yeon Kim, Kyung Lhi Kang, Jeong-Chae Lee, Jung Sun Heo

Open access · bronzeAbstract read
In one paragraph

Article in Molecules and cells, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 27% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 37 citations in OpenAlex.

  1. Pooled it
  2. Emerging Oral Nicotine Products and Periodontal Diseases.International journal of dentistry · 2023
    Review
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  13. [A preliminary study on the autophagy level of human periodontal ligament cells regulated by nicotine].Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology · 2017
    Article
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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.

So Yeon KimDepartment of Maxillofacial Biomedical Engineering and Institute of Oral Biology, School of Dentistry, Kyung Hee University, Seoul 130-701, Korea.
Kyung Lhi Kang
Jeong-Chae Lee
Jung Sun Heo
Kyung Hee University · KRJeonbuk National University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Nicotine, a major component of cigarette smoking, is the important risk factor for the development of periodontal disease. However, the mechanisms that underlie the cytotoxicity of nicotine in human periodontal ligament stem cells (PDLSCs) are largely unknown. Thus, the purpose of this study was to determine the cytotoxic effect of nicotine by means of nicotinic acetylcholine receptor (nAChR) activation in PDLSCs. We first detected α7 and β4 nAChRs in PDLSCs. The gene expressions of α7 and β4 nAChR were increased by nicotine administration. Nicotine significantly decreased cell viability at a concentration higher than 10(-5) M. DNA fragmentation was also detected at high doses of nicotine treatment. Moreover, the detection of sub G1 phase and TUNEL assay demonstrated that nicotine significantly induced apoptotic cell death at 10(-2) M concentration. Western blot analysis confirmed that p53 proteins were phosphorylated by nicotine. Under various doses of nicotine, a decrease in the anti-apoptotic protein Bcl-2, but an increase in p53 and cleaved caspase-3 protein levels, was detected in a dose-dependent manner. However, the apoptotic effect of nicotine was inhibited by the pretreatment of α-bungarotoxin, a selective α7 nAChR antagonist or mecamylamine, a non-selective nAChR antagonist. Finally, increases in the subG1 phase and DNA fragmentation by nicotine was attenuated by each nAChR antagonist. Collectively, the presence of α7 and β4 nAChRs in PDLSCs supports a key role of nAChRs in the modulation of nicotine-induced apoptosis.

Indexed as

AdultApoptosisBungarotoxinsCells, CulturedCell SurvivalDNA FragmentationG1 PhaseGene ExpressionHumansMecamylamineNicotineNicotinic AntagonistsPeriodontal LigamentPhosphorylationReceptors, NicotinicSmokingBungarotoxinsMecamylamineNicotineNicotinic AntagonistsReceptors, NicotinicTP53 protein, humanTumor Suppressor Protein p53

Identifiers

PMID22382680
PMCPMC3887805
OpenAlexW2001595851

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.