Observation of local elastic distribution in aortic tissues under static strain condition by use of a scanning haptic microscope.
Identifieur interne : 001983 ( Main/Exploration ); précédent : 001982; suivant : 001984Observation of local elastic distribution in aortic tissues under static strain condition by use of a scanning haptic microscope.
Auteurs : Takeshi Moriwaki [Japon] ; Tomonori Oie ; Keiichi Takamizawa ; Yoshinobu Murayama ; Toru Fukuda ; Sadao Omata ; Yasuhide NakayamaSource :
- Journal of artificial organs : the official journal of the Japanese Society for Artificial Organs [ 1619-0904 ] ; 2013.
English descriptors
- KwdEn :
- MESH :
- physiology : Aorta, Elasticity.
- Animals, Dogs, Stress, Mechanical, Tensile Strength.
Abstract
The purpose of this study was to observe variation in the local elastic distribution in aortic tissue walls under different static strain conditions, including physiological strain, by use of a scanning haptic microscope (SHM). Strain was applied by stretching aortic tissues in the circumferential direction by the simple tensile method or by the rod-insertion method to mimic in vivo internal pressure loading. SHM measurements in a saline solution at room temperature were performed on canine thoracic aorta using a glass needle probe with a diameter of ca 5 μm and a scanning area and point pitch of 160 × 80 μm and 2 μm, respectively. Under strain of 0-0.23, corresponding to internal pressure of 0-150 mmHg, wavy-shaped elastin fibers stretched until they were almost straightened, and the average elastic modulus increased almost linearly. Although there was little difference between the images obtained for the two different stretching methods, under high strain (>0.36; 250 mmHg) significant circumferential orientation of the collagen fibrils occurred with an increase in the average elastic modulus. It was concluded that the pressure resistance of the aorta under physiological strain was mainly afforded by elastin fibers; collagen fibrils contributed little except under much higher pressures.
DOI: 10.1007/s10047-012-0674-0
PubMed: 23180224
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream PubMed, to step Corpus: 000A95
- to stream PubMed, to step Curation: 000A95
- to stream PubMed, to step Checkpoint: 000843
- to stream Ncbi, to step Merge: 002354
- to stream Ncbi, to step Curation: 002354
- to stream Ncbi, to step Checkpoint: 002354
- to stream Main, to step Merge: 001A01
- to stream Main, to step Curation: 001983
Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Observation of local elastic distribution in aortic tissues under static strain condition by use of a scanning haptic microscope.</title><author><name sortKey="Moriwaki, Takeshi" sort="Moriwaki, Takeshi" uniqKey="Moriwaki T" first="Takeshi" last="Moriwaki">Takeshi Moriwaki</name><affiliation wicri:level="1"><nlm:affiliation>Division of Medical Engineering and Materials, National Cerebral and Cardiovascular Center Research Institute, 5-7-1 Fujishiro-dai, Suita, Osaka, 565-8565, Japan.</nlm:affiliation><country xml:lang="fr">Japon</country><wicri:regionArea>Division of Medical Engineering and Materials, National Cerebral and Cardiovascular Center Research Institute, 5-7-1 Fujishiro-dai, Suita, Osaka, 565-8565</wicri:regionArea><wicri:noRegion>565-8565</wicri:noRegion></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="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="2013">2013</date><idno type="doi">10.1007/s10047-012-0674-0</idno><idno type="RBID">pubmed:23180224</idno><idno type="pmid">23180224</idno><idno type="wicri:Area/PubMed/Corpus">000A95</idno><idno type="wicri:Area/PubMed/Curation">000A95</idno><idno type="wicri:Area/PubMed/Checkpoint">000843</idno><idno type="wicri:Area/Ncbi/Merge">002354</idno><idno type="wicri:Area/Ncbi/Curation">002354</idno><idno type="wicri:Area/Ncbi/Checkpoint">002354</idno><idno type="wicri:Area/Main/Merge">001A01</idno><idno type="wicri:Area/Main/Curation">001983</idno><idno type="wicri:Area/Main/Exploration">001983</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Observation of local elastic distribution in aortic tissues under static strain condition by use of a scanning haptic microscope.</title><author><name sortKey="Moriwaki, Takeshi" sort="Moriwaki, Takeshi" uniqKey="Moriwaki T" first="Takeshi" last="Moriwaki">Takeshi Moriwaki</name><affiliation wicri:level="1"><nlm:affiliation>Division of Medical Engineering and Materials, National Cerebral and Cardiovascular Center Research Institute, 5-7-1 Fujishiro-dai, Suita, Osaka, 565-8565, Japan.</nlm:affiliation><country xml:lang="fr">Japon</country><wicri:regionArea>Division of Medical Engineering and Materials, National Cerebral and Cardiovascular Center Research Institute, 5-7-1 Fujishiro-dai, Suita, Osaka, 565-8565</wicri:regionArea><wicri:noRegion>565-8565</wicri:noRegion></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="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="2013" type="published">2013</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>Elasticity (physiology)</term><term>Stress, Mechanical</term><term>Tensile Strength</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Aorta</term><term>Elasticity</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term><term>Dogs</term><term>Stress, Mechanical</term><term>Tensile Strength</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The purpose of this study was to observe variation in the local elastic distribution in aortic tissue walls under different static strain conditions, including physiological strain, by use of a scanning haptic microscope (SHM). Strain was applied by stretching aortic tissues in the circumferential direction by the simple tensile method or by the rod-insertion method to mimic in vivo internal pressure loading. SHM measurements in a saline solution at room temperature were performed on canine thoracic aorta using a glass needle probe with a diameter of ca 5 μm and a scanning area and point pitch of 160 × 80 μm and 2 μm, respectively. Under strain of 0-0.23, corresponding to internal pressure of 0-150 mmHg, wavy-shaped elastin fibers stretched until they were almost straightened, and the average elastic modulus increased almost linearly. Although there was little difference between the images obtained for the two different stretching methods, under high strain (>0.36; 250 mmHg) significant circumferential orientation of the collagen fibrils occurred with an increase in the average elastic modulus. It was concluded that the pressure resistance of the aorta under physiological strain was mainly afforded by elastin fibers; collagen fibrils contributed little except under much higher pressures.</div></front></TEI><affiliations><list><country><li>Japon</li></country></list><tree><noCountry><name sortKey="Fukuda, Toru" sort="Fukuda, Toru" uniqKey="Fukuda T" first="Toru" last="Fukuda">Toru Fukuda</name><name sortKey="Murayama, Yoshinobu" sort="Murayama, Yoshinobu" uniqKey="Murayama Y" first="Yoshinobu" last="Murayama">Yoshinobu Murayama</name><name sortKey="Nakayama, Yasuhide" sort="Nakayama, Yasuhide" uniqKey="Nakayama Y" first="Yasuhide" last="Nakayama">Yasuhide Nakayama</name><name sortKey="Oie, Tomonori" sort="Oie, Tomonori" uniqKey="Oie T" first="Tomonori" last="Oie">Tomonori Oie</name><name sortKey="Omata, Sadao" sort="Omata, Sadao" uniqKey="Omata S" first="Sadao" last="Omata">Sadao Omata</name><name sortKey="Takamizawa, Keiichi" sort="Takamizawa, Keiichi" uniqKey="Takamizawa K" first="Keiichi" last="Takamizawa">Keiichi Takamizawa</name></noCountry><country name="Japon"><noRegion><name sortKey="Moriwaki, Takeshi" sort="Moriwaki, Takeshi" uniqKey="Moriwaki T" first="Takeshi" last="Moriwaki">Takeshi Moriwaki</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Ticri/CIDE/explor/HapticV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 001983 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 001983 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Ticri/CIDE
|area= HapticV1
|flux= Main
|étape= Exploration
|type= RBID
|clé= pubmed:23180224
|texte= Observation of local elastic distribution in aortic tissues under static strain condition by use of a scanning haptic microscope.
}}
Pour générer des pages wiki
HfdIndexSelect -h $EXPLOR_AREA/Data/Main/Exploration/RBID.i -Sk "pubmed:23180224" \
| HfdSelect -Kh $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd \
| NlmPubMed2Wicri -a HapticV1
| This area was generated with Dilib version V0.6.23. |  |