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Article: Age- And Sex-Related Changes Of Mandibular Condylar Cartilage And Subchondral Bone: A Histomorphometric And Micro-Ct Study In Rats

TitleAge- And Sex-Related Changes Of Mandibular Condylar Cartilage And Subchondral Bone: A Histomorphometric And Micro-Ct Study In Rats
Authors
Issue Date2010
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/archoralbio
Citation
Archives Of Oral Biology, 2010, v. 55 n. 2, p. 155-163 How to Cite?
AbstractObjective: To Quantify The Age- And Sex-Related Changes In The Rat Condylar Cartilage And Subchondral Bone. Methods: Sd Rats Were Obtained At The Ages Of 2, 3, 4, 5, 6 And 7 Months. For Each Sex, The Temporomandibular Joints Tissue Blocks From Four Rats Were Subjected To Histological Assessment Of Cartilage Thickness And Subchondral Bone Architecture; For The Remaining Three Rats, The Mandibular Condyles Were Delivered For Gross Measurement And Evaluation Of The Mineralization And Architecture Properties Of The Subchondral Bone By Means Of Micro-Ct. Results: Rapid Decrease Of Cartilage Thickness But Increase Of Subchondral Bone Density Occurred Respectively From 2 To 3 And 3 To 4 Months Old In Female And 2 To 4 And 3 To 5 Months Old In Male (P < 0.05), Whereas Rapid Changes Of Subchondral Bone Architecture Occurred From 3 To 4 Months Old In Both Sexes (P < 0.05). The Significant Enlargement Of Condyle Size Occurred At 4 Or 5 Months Old In Female But At 5 Or 6 Months In Male (P < 0.05). Conclusion: This Study Demonstrated That The Rapid Developmental Changes Of Rat Condylar Cartilage And Subchondral Bone Primarily Occurred Before 4 Months Of Age, Resulting In Thinner Cartilage But Larger And Thicker Subchondral Bone, And They Were Followed By Rapid Growth In Condylar Size. Sex Differences Were Identified That The Endochondral Ossification Of Fibrocartilage And Formation Of Subchondral Bone Were Faster In Female Than In Male Rats, Leading To The Earlier Enlargement Of Condyle In Female Than In Male. © 2009 Elsevier Ltd. All Rights Reserved.
Persistent Identifierhttp://hdl.handle.net/10722/144262
ISSN
2015 Impact Factor: 1.733
2015 SCImago Journal Rankings: 0.713
ISI Accession Number ID
Funding AgencyGrant Number
National Natural Science Foundation of China30772429
30801315
Funding Information:

Funding: The National Natural Science Foundation of China (No. 30772429 and No. 30801315).

References

 

DC FieldValueLanguage
dc.contributor.authorJiao, Ken_US
dc.contributor.authorDai, Jen_US
dc.contributor.authorWang, M-Qen_US
dc.contributor.authorNiu, L-Nen_US
dc.contributor.authorYu, S-Ben_US
dc.contributor.authorLiu, X-Den_US
dc.date.accessioned2012-01-20T08:58:28Z-
dc.date.available2012-01-20T08:58:28Z-
dc.date.issued2010en_US
dc.identifier.citationArchives Of Oral Biology, 2010, v. 55 n. 2, p. 155-163en_US
dc.identifier.issn0003-9969en_US
dc.identifier.urihttp://hdl.handle.net/10722/144262-
dc.description.abstractObjective: To Quantify The Age- And Sex-Related Changes In The Rat Condylar Cartilage And Subchondral Bone. Methods: Sd Rats Were Obtained At The Ages Of 2, 3, 4, 5, 6 And 7 Months. For Each Sex, The Temporomandibular Joints Tissue Blocks From Four Rats Were Subjected To Histological Assessment Of Cartilage Thickness And Subchondral Bone Architecture; For The Remaining Three Rats, The Mandibular Condyles Were Delivered For Gross Measurement And Evaluation Of The Mineralization And Architecture Properties Of The Subchondral Bone By Means Of Micro-Ct. Results: Rapid Decrease Of Cartilage Thickness But Increase Of Subchondral Bone Density Occurred Respectively From 2 To 3 And 3 To 4 Months Old In Female And 2 To 4 And 3 To 5 Months Old In Male (P < 0.05), Whereas Rapid Changes Of Subchondral Bone Architecture Occurred From 3 To 4 Months Old In Both Sexes (P < 0.05). The Significant Enlargement Of Condyle Size Occurred At 4 Or 5 Months Old In Female But At 5 Or 6 Months In Male (P < 0.05). Conclusion: This Study Demonstrated That The Rapid Developmental Changes Of Rat Condylar Cartilage And Subchondral Bone Primarily Occurred Before 4 Months Of Age, Resulting In Thinner Cartilage But Larger And Thicker Subchondral Bone, And They Were Followed By Rapid Growth In Condylar Size. Sex Differences Were Identified That The Endochondral Ossification Of Fibrocartilage And Formation Of Subchondral Bone Were Faster In Female Than In Male Rats, Leading To The Earlier Enlargement Of Condyle In Female Than In Male. © 2009 Elsevier Ltd. All Rights Reserved.en_US
dc.languageengen_US
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/archoralbioen_US
dc.relation.ispartofArchives Of Oral Biologyen_US
dc.titleAge- And Sex-Related Changes Of Mandibular Condylar Cartilage And Subchondral Bone: A Histomorphometric And Micro-Ct Study In Ratsen_US
dc.typeArticleen_US
dc.identifier.authorityDai, J=rp01569en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.archoralbio.2009.11.012en_US
dc.identifier.pmid20034609-
dc.identifier.scopuseid_2-s2.0-74449087915en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-74449087915&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume55en_US
dc.identifier.issue2en_US
dc.identifier.spage155en_US
dc.identifier.epage163en_US
dc.identifier.isiWOS:000274872000009-
dc.identifier.citeulike6482393-

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