Cited by 33Bone Metabolism and DiseasesOral microbiology and periodontitis researchEstrogen and related hormone effects

Effects of oestrogen deficiency on osteoclastogenesis in the rat periodontium

Kawamoto, S, Ejiri, S, Nagaoka, E, Ozawa, H·2002·Archives of Oral Biology

Abstract

This study was designed to investigate quantitative changes in osteoclast generation in rat periodontium following ovariectomy. Wistar rats, aged 9 weeks, were subjected to either ovariectomy (OVX) or sham surgery. Osmotic pumps were implanted in 24 rats and either 17beta-oestradiol or vehicle solution were infused continuously. The rats were assigned to one of the following groups: (1) OVX+vehicle; (2) sham+vehicle; or (3) OVX+ 17beta-oestradiol. On the days 7 and 14 after surgery, four rats in each group were killed. Mandibles were demineralized and embedded in paraffin. Frontal sections of alveolar bone in the region of the first molar were cut for enzyme histochemistry and immunohistochemistry. On day 7, there was no significant difference in the number of tartrate-resistant acid phosphatase (TRAP)-positive cells located on bone surfaces in either group. However, the number of TRAP-positive mononuclear cells that were separated from the bone surface was significantly higher in group 1 than in groups 2 and 3. On the day 14, the number of TRAP-positive cells in group 1, which were attached to the bone surface, was significantly higher than had been apparent on day 7. There were also significant increases in the number of nuclei of TRAP-positive cells attached to the bone in group 1 compared with groups 2 and 3 on day 14. These findings demonstrate that oestrogen deficiency induces of osteoclastogenesis in the rat periodontium and that quantitative changes in osteoclastogenesis could be prevented by E2 infusion.

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Crossref · 10.1016/s0003-9969(01)00086-3

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26 of 26 references verified0 citation errors · 0 not checkable

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  • Estrogen stimulates osteoblasts and osteocytes to produce osteoprotegerin (OPG), which inhibits osteoclastogenesis.

    “Moreover, estrogen stimulates these bone cells to produce osteoprotegerin (OPG), a decoy receptor of RANK in osteoclast, thus inhibiting osteoclastogenesis [19, 155–159].”

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Authors
Kawamoto, S., Ejiri, S., Nagaoka, E., & Ozawa, H.
Affiliations
  • Kagoshima University (JP)
  • Niigata University (JP)
  • Matsumoto Dental University (JP)
Corresponding author
Kawamoto, S
Venue
Archives of Oral Biology
Publisher
Elsevier BV
Published
2002-01
Volume
47
Issue
1
Pages
67-73
ISSN
0003-9969 (ISSN-L)
OpenAlex
W2040784057
Cited by
33
References
26
Citations by year
2021: 1 · 2020: 1 · 2018: 1 · 2015: 4 · 2014: 5 · 2013: 2 · 2012: 1
FWCI
0.58
Type
journal article
Language
en
Open access
closed
Locations
  • Archives of Oral Biology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Ministry of Education, Culture, Sports, Science and Technology (10771091)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bone Metabolism and Diseases
  • Health Sciences › Dentistry › Periodontics › Oral microbiology and periodontitis research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Estrogen and related hormone effects
Keywords
estrogen deficiency, osteoclastogenesis, periodontium, ovariectomy, estradiol, alveolar bone, tartrate-resistant acid phosphatase, bone resorption, estrogen replacement therapy
MeSH terms
Tartrate-Resistant Acid Phosphatase, Acid Phosphatase, Alveolar Process, Animals, Bone Resorption, Carrier Proteins, Cathepsins, Cell Adhesion, Cell Count, Cell Nucleus, Cysteine Endopeptidases, Estradiol, Estrogens, Female, Follow-Up Studies, Immunohistochemistry, Infusion Pumps, Isoenzymes, Ligands, Mandible, Membrane Glycoproteins, Osteoclasts, Ovariectomy, Periodontium, Statistics as Topic, Tumor Necrosis Factor-alpha, Pharmaceutical Vehicles, Biomarkers, NF-kappa B, Rats, Wistar, Rats, RANK Ligand, Cathepsin K

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