Wearing of complete dentures reduces slow fibre and enhances hybrid fibre fraction in masseter muscle.
Identifieur interne : 001028 ( PubMed/Corpus ); précédent : 001027; suivant : 001029Wearing of complete dentures reduces slow fibre and enhances hybrid fibre fraction in masseter muscle.
Auteurs : E. Cvetko ; P. Karen ; I. ErženSource :
- Journal of oral rehabilitation [ 1365-2842 ] ; 2012.
English descriptors
- KwdEn :
- Aged, Aged, 80 and over, Aging, Case-Control Studies, Denture, Complete (adverse effects), Humans, Masseter Muscle (metabolism), Masseter Muscle (physiopathology), Middle Aged, Mouth, Edentulous (metabolism), Mouth, Edentulous (physiopathology), Muscle Fibers, Skeletal (pathology), Myosin Heavy Chains (metabolism), Protein Isoforms (metabolism).
- MESH :
- chemical , metabolism : Myosin Heavy Chains, Protein Isoforms.
- adverse effects : Denture, Complete.
- metabolism : Masseter Muscle, Mouth, Edentulous.
- pathology : Muscle Fibers, Skeletal.
- physiopathology : Masseter Muscle, Mouth, Edentulous.
- Aged, Aged, 80 and over, Aging, Case-Control Studies, Humans, Middle Aged.
Abstract
Edentulous conditions and use of complete dentures alter the function of jaw muscles, which is presumably reflected in the myosin heavy chain (MyHC) isoform composition. This study is the first dealing with MyHC isoforms expression in edentulous persons with the aim to clarify to which extent the decreased functional load following teeth loss contributes to the changed muscle phenotype during ageing. We analysed MyHC expression in old masseter muscle at decreased and full functional load by comparing age-matched edentulous and dentate subjects. Edentulous subjects had upper and lower complete dentures. Dentate subjects had at least 24 natural teeth in continuous dental arches with two molars present in each quadrant and normal intermaxillary relationship. The adaptive response to the reduced masticatory load was lower numerical and area proportion of MyHC-1 expressing fibres and higher numerical proportion of hybrid fibres in edentulous compared with dentate subjects with no significant difference in the proportion of MyHC-neo-expressing fibres between both groups. We conclude that the observed differences in the proportion of fibre types between denture wearers and dentate subjects cannot be ascribed to degenerative changes intrinsic to the ageing muscle, but to functional differences in muscle activity and to morphological alterations of stomatognathic system accompanying the complete teeth loss.
DOI: 10.1111/j.1365-2842.2012.02294.x
PubMed: 22489880
Links to Exploration step
pubmed:22489880Le document en format XML
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Eržen</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2012">2012</date><idno type="RBID">pubmed:22489880</idno><idno type="pmid">22489880</idno><idno type="doi">10.1111/j.1365-2842.2012.02294.x</idno><idno type="wicri:Area/PubMed/Corpus">001028</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">001028</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Wearing of complete dentures reduces slow fibre and enhances hybrid fibre fraction in masseter muscle.</title><author><name sortKey="Cvetko, E" sort="Cvetko, E" uniqKey="Cvetko E" first="E" last="Cvetko">E. Cvetko</name><affiliation><nlm:affiliation>Institute of Anatomy, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia. erika.cvetko@mf.uni-lj.si</nlm:affiliation></affiliation></author><author><name sortKey="Karen, P" sort="Karen, P" uniqKey="Karen P" first="P" last="Karen">P. Karen</name></author><author><name sortKey="Erzen, I" sort="Erzen, I" uniqKey="Erzen I" first="I" last="Eržen">I. Eržen</name></author></analytic><series><title level="j">Journal of oral rehabilitation</title><idno type="eISSN">1365-2842</idno><imprint><date when="2012" type="published">2012</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aged</term><term>Aged, 80 and over</term><term>Aging</term><term>Case-Control Studies</term><term>Denture, Complete (adverse effects)</term><term>Humans</term><term>Masseter Muscle (metabolism)</term><term>Masseter Muscle (physiopathology)</term><term>Middle Aged</term><term>Mouth, Edentulous (metabolism)</term><term>Mouth, Edentulous (physiopathology)</term><term>Muscle Fibers, Skeletal (pathology)</term><term>Myosin Heavy Chains (metabolism)</term><term>Protein Isoforms (metabolism)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Myosin Heavy Chains</term><term>Protein Isoforms</term></keywords><keywords scheme="MESH" qualifier="adverse effects" xml:lang="en"><term>Denture, Complete</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Masseter Muscle</term><term>Mouth, Edentulous</term></keywords><keywords scheme="MESH" qualifier="pathology" xml:lang="en"><term>Muscle Fibers, Skeletal</term></keywords><keywords scheme="MESH" qualifier="physiopathology" xml:lang="en"><term>Masseter Muscle</term><term>Mouth, Edentulous</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Aged</term><term>Aged, 80 and over</term><term>Aging</term><term>Case-Control Studies</term><term>Humans</term><term>Middle Aged</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Edentulous conditions and use of complete dentures alter the function of jaw muscles, which is presumably reflected in the myosin heavy chain (MyHC) isoform composition. This study is the first dealing with MyHC isoforms expression in edentulous persons with the aim to clarify to which extent the decreased functional load following teeth loss contributes to the changed muscle phenotype during ageing. We analysed MyHC expression in old masseter muscle at decreased and full functional load by comparing age-matched edentulous and dentate subjects. Edentulous subjects had upper and lower complete dentures. Dentate subjects had at least 24 natural teeth in continuous dental arches with two molars present in each quadrant and normal intermaxillary relationship. The adaptive response to the reduced masticatory load was lower numerical and area proportion of MyHC-1 expressing fibres and higher numerical proportion of hybrid fibres in edentulous compared with dentate subjects with no significant difference in the proportion of MyHC-neo-expressing fibres between both groups. We conclude that the observed differences in the proportion of fibre types between denture wearers and dentate subjects cannot be ascribed to degenerative changes intrinsic to the ageing muscle, but to functional differences in muscle activity and to morphological alterations of stomatognathic system accompanying the complete teeth loss.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">22489880</PMID><DateCompleted><Year>2012</Year><Month>09</Month><Day>27</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1365-2842</ISSN><JournalIssue CitedMedium="Internet"><Volume>39</Volume><Issue>8</Issue><PubDate><Year>2012</Year><Month>Aug</Month></PubDate></JournalIssue><Title>Journal of oral rehabilitation</Title><ISOAbbreviation>J Oral Rehabil</ISOAbbreviation></Journal><ArticleTitle>Wearing of complete dentures reduces slow fibre and enhances hybrid fibre fraction in masseter muscle.</ArticleTitle><Pagination><MedlinePgn>608-14</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/j.1365-2842.2012.02294.x</ELocationID><Abstract><AbstractText>Edentulous conditions and use of complete dentures alter the function of jaw muscles, which is presumably reflected in the myosin heavy chain (MyHC) isoform composition. This study is the first dealing with MyHC isoforms expression in edentulous persons with the aim to clarify to which extent the decreased functional load following teeth loss contributes to the changed muscle phenotype during ageing. We analysed MyHC expression in old masseter muscle at decreased and full functional load by comparing age-matched edentulous and dentate subjects. Edentulous subjects had upper and lower complete dentures. Dentate subjects had at least 24 natural teeth in continuous dental arches with two molars present in each quadrant and normal intermaxillary relationship. The adaptive response to the reduced masticatory load was lower numerical and area proportion of MyHC-1 expressing fibres and higher numerical proportion of hybrid fibres in edentulous compared with dentate subjects with no significant difference in the proportion of MyHC-neo-expressing fibres between both groups. We conclude that the observed differences in the proportion of fibre types between denture wearers and dentate subjects cannot be ascribed to degenerative changes intrinsic to the ageing muscle, but to functional differences in muscle activity and to morphological alterations of stomatognathic system accompanying the complete teeth loss.</AbstractText><CopyrightInformation>© 2012 Blackwell Publishing Ltd.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Cvetko</LastName><ForeName>E</ForeName><Initials>E</Initials><AffiliationInfo><Affiliation>Institute of Anatomy, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia. erika.cvetko@mf.uni-lj.si</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Karen</LastName><ForeName>P</ForeName><Initials>P</Initials></Author><Author ValidYN="Y"><LastName>Eržen</LastName><ForeName>I</ForeName><Initials>I</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2012</Year><Month>04</Month><Day>10</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>J Oral Rehabil</MedlineTA><NlmUniqueID>0433604</NlmUniqueID><ISSNLinking>0305-182X</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D020033">Protein Isoforms</NameOfSubstance></Chemical><Chemical><RegistryNumber>EC 3.6.4.1</RegistryNumber><NameOfSubstance UI="D018995">Myosin Heavy Chains</NameOfSubstance></Chemical></ChemicalList><CitationSubset>D</CitationSubset><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000368" MajorTopicYN="N">Aged</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D000369" MajorTopicYN="N">Aged, 80 and over</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D000375" MajorTopicYN="N">Aging</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D016022" MajorTopicYN="N">Case-Control Studies</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D003824" MajorTopicYN="N">Denture, Complete</DescriptorName><QualifierName UI="Q000009" MajorTopicYN="Y">adverse effects</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D006801" MajorTopicYN="N">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008406" MajorTopicYN="N">Masseter Muscle</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName><QualifierName UI="Q000503" MajorTopicYN="Y">physiopathology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D008875" MajorTopicYN="N">Middle Aged</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D009066" MajorTopicYN="N">Mouth, Edentulous</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName><QualifierName UI="Q000503" MajorTopicYN="Y">physiopathology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018485" MajorTopicYN="N">Muscle Fibers, Skeletal</DescriptorName><QualifierName UI="Q000473" MajorTopicYN="Y">pathology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018995" MajorTopicYN="N">Myosin Heavy Chains</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D020033" MajorTopicYN="N">Protein Isoforms</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2012</Year><Month>4</Month><Day>12</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2012</Year><Month>4</Month><Day>12</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2012</Year><Month>9</Month><Day>28</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">22489880</ArticleId><ArticleId IdType="doi">10.1111/j.1365-2842.2012.02294.x</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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