Variations in local elastic modulus along the length of the aorta as observed by use of a scanning haptic microscope (SHM).
Identifieur interne : 000E19 ( PubMed/Curation ); précédent : 000E18; suivant : 000E20Variations in local elastic modulus along the length of the aorta as observed by use of a scanning haptic microscope (SHM).
Auteurs : Takeshi Moriwaki [Japon] ; Tomonori Oie ; Keiichi Takamizawa ; Yoshinobu Murayama ; Toru Fukuda ; Sadao Omata ; Keiichi Kanda ; Yasuhide NakayamaSource :
- Journal of artificial organs : the official journal of the Japanese Society for Artificial Organs [ 1619-0904 ] ; 2011.
English descriptors
- KwdEn :
- MESH :
- physiology : Aorta, Extracellular Matrix.
- Animals, Dogs, Elastic Modulus, In Vitro Techniques, Microscopy, Scanning Probe.
Abstract
Variations in microscopic elastic structures along the entire length of canine aorta were evaluated by use of a scanning haptic microscope (SHM). The total aorta from the aortic arch to the abdominal aorta was divided into 6 approximately equal segments. After embedding the aorta in agar, it was cut into horizontal circumferential segments to obtain disk-like agar portions containing ring-like samples of aorta with flat surfaces (thickness, approximately 1 mm). The elastic modulus and topography of the samples under no-load conditions were simultaneously measured along the entire thickness of the wall by SHM by using a probe with a diameter of 5 μm and a spatial resolution of 2 μm at a rate of 0.3 s/point. The elastic modulus of the wall was the highest on the side of the luminal surface and decreased gradually toward the adventitial side. This tendency was similar to that of the change in the elastin fiber content. During the evaluation of the mid-portion of each tunica media segment, the highest elastic modulus (40.8 ± 3.5 kPa) was identified at the thoracic section of the aorta that had the highest density of elastic fibers. Under no-load conditions, portions of the aorta with high elastin density have a high elastic modulus.
DOI: 10.1007/s10047-011-0596-2
PubMed: 21858475
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sort="Takamizawa, Keiichi" uniqKey="Takamizawa K" first="Keiichi" last="Takamizawa">Keiichi Takamizawa</name></author><author><name sortKey="Murayama, Yoshinobu" sort="Murayama, Yoshinobu" uniqKey="Murayama Y" first="Yoshinobu" last="Murayama">Yoshinobu Murayama</name></author><author><name sortKey="Fukuda, Toru" sort="Fukuda, Toru" uniqKey="Fukuda T" first="Toru" last="Fukuda">Toru Fukuda</name></author><author><name sortKey="Omata, Sadao" sort="Omata, Sadao" uniqKey="Omata S" first="Sadao" last="Omata">Sadao Omata</name></author><author><name sortKey="Kanda, Keiichi" sort="Kanda, Keiichi" uniqKey="Kanda K" first="Keiichi" last="Kanda">Keiichi Kanda</name></author><author><name sortKey="Nakayama, Yasuhide" sort="Nakayama, Yasuhide" uniqKey="Nakayama Y" first="Yasuhide" last="Nakayama">Yasuhide Nakayama</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2011">2011</date><idno type="doi">10.1007/s10047-011-0596-2</idno><idno 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565-8565</wicri:regionArea></affiliation></author><author><name sortKey="Oie, Tomonori" sort="Oie, Tomonori" uniqKey="Oie T" first="Tomonori" last="Oie">Tomonori Oie</name></author><author><name sortKey="Takamizawa, Keiichi" sort="Takamizawa, Keiichi" uniqKey="Takamizawa K" first="Keiichi" last="Takamizawa">Keiichi Takamizawa</name></author><author><name sortKey="Murayama, Yoshinobu" sort="Murayama, Yoshinobu" uniqKey="Murayama Y" first="Yoshinobu" last="Murayama">Yoshinobu Murayama</name></author><author><name sortKey="Fukuda, Toru" sort="Fukuda, Toru" uniqKey="Fukuda T" first="Toru" last="Fukuda">Toru Fukuda</name></author><author><name sortKey="Omata, Sadao" sort="Omata, Sadao" uniqKey="Omata S" first="Sadao" last="Omata">Sadao Omata</name></author><author><name sortKey="Kanda, Keiichi" sort="Kanda, Keiichi" uniqKey="Kanda K" first="Keiichi" last="Kanda">Keiichi Kanda</name></author><author><name sortKey="Nakayama, Yasuhide" sort="Nakayama, Yasuhide" uniqKey="Nakayama Y" first="Yasuhide" last="Nakayama">Yasuhide Nakayama</name></author></analytic><series><title level="j">Journal of artificial organs : the official journal of the Japanese Society for Artificial Organs</title><idno type="eISSN">1619-0904</idno><imprint><date when="2011" type="published">2011</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals</term><term>Aorta (physiology)</term><term>Dogs</term><term>Elastic Modulus</term><term>Extracellular Matrix (physiology)</term><term>In Vitro Techniques</term><term>Microscopy, Scanning Probe</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Aorta</term><term>Extracellular Matrix</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term><term>Dogs</term><term>Elastic Modulus</term><term>In Vitro Techniques</term><term>Microscopy, Scanning Probe</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Variations in microscopic elastic structures along the entire length of canine aorta were evaluated by use of a scanning haptic microscope (SHM). The total aorta from the aortic arch to the abdominal aorta was divided into 6 approximately equal segments. After embedding the aorta in agar, it was cut into horizontal circumferential segments to obtain disk-like agar portions containing ring-like samples of aorta with flat surfaces (thickness, approximately 1 mm). The elastic modulus and topography of the samples under no-load conditions were simultaneously measured along the entire thickness of the wall by SHM by using a probe with a diameter of 5 μm and a spatial resolution of 2 μm at a rate of 0.3 s/point. The elastic modulus of the wall was the highest on the side of the luminal surface and decreased gradually toward the adventitial side. This tendency was similar to that of the change in the elastin fiber content. During the evaluation of the mid-portion of each tunica media segment, the highest elastic modulus (40.8 ± 3.5 kPa) was identified at the thoracic section of the aorta that had the highest density of elastic fibers. Under no-load conditions, portions of the aorta with high elastin density have a high elastic modulus.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">21858475</PMID><DateCreated><Year>2011</Year><Month>12</Month><Day>06</Day></DateCreated><DateCompleted><Year>2012</Year><Month>04</Month><Day>12</Day></DateCompleted><DateRevised><Year>2014</Year><Month>11</Month><Day>20</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1619-0904</ISSN><JournalIssue CitedMedium="Internet"><Volume>14</Volume><Issue>4</Issue><PubDate><Year>2011</Year><Month>Dec</Month></PubDate></JournalIssue><Title>Journal of artificial organs : the official journal of the Japanese Society for Artificial Organs</Title><ISOAbbreviation>J Artif Organs</ISOAbbreviation></Journal><ArticleTitle>Variations in local elastic modulus along the length of the aorta as observed by use of a scanning haptic microscope (SHM).</ArticleTitle><Pagination><MedlinePgn>276-83</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1007/s10047-011-0596-2</ELocationID><Abstract><AbstractText>Variations in microscopic elastic structures along the entire length of canine aorta were evaluated by use of a scanning haptic microscope (SHM). The total aorta from the aortic arch to the abdominal aorta was divided into 6 approximately equal segments. After embedding the aorta in agar, it was cut into horizontal circumferential segments to obtain disk-like agar portions containing ring-like samples of aorta with flat surfaces (thickness, approximately 1 mm). The elastic modulus and topography of the samples under no-load conditions were simultaneously measured along the entire thickness of the wall by SHM by using a probe with a diameter of 5 μm and a spatial resolution of 2 μm at a rate of 0.3 s/point. The elastic modulus of the wall was the highest on the side of the luminal surface and decreased gradually toward the adventitial side. This tendency was similar to that of the change in the elastin fiber content. During the evaluation of the mid-portion of each tunica media segment, the highest elastic modulus (40.8 ± 3.5 kPa) was identified at the thoracic section of the aorta that had the highest density of elastic fibers. Under no-load conditions, portions of the aorta with high elastin density have a high elastic modulus.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Moriwaki</LastName><ForeName>Takeshi</ForeName><Initials>T</Initials><AffiliationInfo><Affiliation>Division of Medical Engineering and Materials, National Cerebral and Cardiovascular Center Research Institute, 5-7-1 Fujishiro-dai, Suita, Osaka 565-8565, Japan.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Oie</LastName><ForeName>Tomonori</ForeName><Initials>T</Initials></Author><Author ValidYN="Y"><LastName>Takamizawa</LastName><ForeName>Keiichi</ForeName><Initials>K</Initials></Author><Author ValidYN="Y"><LastName>Murayama</LastName><ForeName>Yoshinobu</ForeName><Initials>Y</Initials></Author><Author ValidYN="Y"><LastName>Fukuda</LastName><ForeName>Toru</ForeName><Initials>T</Initials></Author><Author ValidYN="Y"><LastName>Omata</LastName><ForeName>Sadao</ForeName><Initials>S</Initials></Author><Author ValidYN="Y"><LastName>Kanda</LastName><ForeName>Keiichi</ForeName><Initials>K</Initials></Author><Author ValidYN="Y"><LastName>Nakayama</LastName><ForeName>Yasuhide</ForeName><Initials>Y</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>2011</Year><Month>08</Month><Day>20</Day></ArticleDate></Article><MedlineJournalInfo><Country>Japan</Country><MedlineTA>J Artif Organs</MedlineTA><NlmUniqueID>9815648</NlmUniqueID><ISSNLinking>1434-7229</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName MajorTopicYN="N" UI="D000818">Animals</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D001011">Aorta</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D004285">Dogs</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="Y" UI="D055119">Elastic Modulus</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D005109">Extracellular Matrix</DescriptorName><QualifierName MajorTopicYN="N" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D066298">In Vitro Techniques</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D020527">Microscopy, Scanning Probe</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2011</Year><Month>2</Month><Day>2</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2011</Year><Month>7</Month><Day>13</Day></PubMedPubDate><PubMedPubDate PubStatus="aheadofprint"><Year>2011</Year><Month>8</Month><Day>20</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2011</Year><Month>8</Month><Day>23</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2011</Year><Month>8</Month><Day>23</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2012</Year><Month>4</Month><Day>13</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="doi">10.1007/s10047-011-0596-2</ArticleId><ArticleId IdType="pubmed">21858475</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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