The effect of temperature on the mechanical aspects of rigor mortis in a liquid paraffin model
Abstract Rigor mortis is an important phenomenon to estimate the postmortem interval in forensic medicine. Rigor mortis is affected by temperature. We measured stiffness of rat muscles using a liquid paraffin model to monitor the mechanical aspects of rigor mortis at five temperatures (37, 25, 10, 5...
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| Veröffentlicht in: | Legal medicine (Tokyo, Japan) Japan), 2013-11, Vol.15 (6), p.293-297 |
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| container_title | Legal medicine (Tokyo, Japan) |
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| creator | Ozawa, Masayoshi Iwadate, Kimiharu Matsumoto, Sari Asakura, Kumiko Ochiai, Eriko Maebashi, Kyoko |
| description | Abstract Rigor mortis is an important phenomenon to estimate the postmortem interval in forensic medicine. Rigor mortis is affected by temperature. We measured stiffness of rat muscles using a liquid paraffin model to monitor the mechanical aspects of rigor mortis at five temperatures (37, 25, 10, 5 and 0 °C). At 37, 25 and 10 °C, the progression of stiffness was slower in cooler conditions. At 5 and 0 °C, the muscle stiffness increased immediately after the muscles were soaked in cooled liquid paraffin and then muscles gradually became rigid without going through a relaxed state. This phenomenon suggests that it is important to be careful when estimating the postmortem interval in cold seasons. |
| doi_str_mv | 10.1016/j.legalmed.2013.08.001 |
| format | Article |
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Rigor mortis is affected by temperature. We measured stiffness of rat muscles using a liquid paraffin model to monitor the mechanical aspects of rigor mortis at five temperatures (37, 25, 10, 5 and 0 °C). At 37, 25 and 10 °C, the progression of stiffness was slower in cooler conditions. At 5 and 0 °C, the muscle stiffness increased immediately after the muscles were soaked in cooled liquid paraffin and then muscles gradually became rigid without going through a relaxed state. This phenomenon suggests that it is important to be careful when estimating the postmortem interval in cold seasons.</description><identifier>ISSN: 1344-6223</identifier><identifier>EISSN: 1873-4162</identifier><identifier>DOI: 10.1016/j.legalmed.2013.08.001</identifier><identifier>PMID: 24055629</identifier><language>eng</language><publisher>Ireland: Elsevier Ireland Ltd</publisher><subject>Animals ; Forensic Pathology - methods ; Internal Medicine ; Liquid paraffin model ; Male ; Muscle, Skeletal - pathology ; Paraffin Embedding - methods ; Postmortem Changes ; Rats ; Rats, Sprague-Dawley ; Rigor mortis ; Rigor Mortis - pathology ; Stiffness ; Temperature ; Time Factors</subject><ispartof>Legal medicine (Tokyo, Japan), 2013-11, Vol.15 (6), p.293-297</ispartof><rights>Elsevier Ireland Ltd</rights><rights>2013 Elsevier Ireland Ltd</rights><rights>Copyright © 2013 Elsevier Ireland Ltd. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c447t-75b7c9736a65688a83074e4634cd5676ed6d8b6433b22c290e915bd65efe88523</citedby><cites>FETCH-LOGICAL-c447t-75b7c9736a65688a83074e4634cd5676ed6d8b6433b22c290e915bd65efe88523</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S1344622313000874$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/24055629$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Ozawa, Masayoshi</creatorcontrib><creatorcontrib>Iwadate, Kimiharu</creatorcontrib><creatorcontrib>Matsumoto, Sari</creatorcontrib><creatorcontrib>Asakura, Kumiko</creatorcontrib><creatorcontrib>Ochiai, Eriko</creatorcontrib><creatorcontrib>Maebashi, Kyoko</creatorcontrib><title>The effect of temperature on the mechanical aspects of rigor mortis in a liquid paraffin model</title><title>Legal medicine (Tokyo, Japan)</title><addtitle>Leg Med (Tokyo)</addtitle><description>Abstract Rigor mortis is an important phenomenon to estimate the postmortem interval in forensic medicine. Rigor mortis is affected by temperature. We measured stiffness of rat muscles using a liquid paraffin model to monitor the mechanical aspects of rigor mortis at five temperatures (37, 25, 10, 5 and 0 °C). At 37, 25 and 10 °C, the progression of stiffness was slower in cooler conditions. At 5 and 0 °C, the muscle stiffness increased immediately after the muscles were soaked in cooled liquid paraffin and then muscles gradually became rigid without going through a relaxed state. This phenomenon suggests that it is important to be careful when estimating the postmortem interval in cold seasons.</description><subject>Animals</subject><subject>Forensic Pathology - methods</subject><subject>Internal Medicine</subject><subject>Liquid paraffin model</subject><subject>Male</subject><subject>Muscle, Skeletal - pathology</subject><subject>Paraffin Embedding - methods</subject><subject>Postmortem Changes</subject><subject>Rats</subject><subject>Rats, Sprague-Dawley</subject><subject>Rigor mortis</subject><subject>Rigor Mortis - pathology</subject><subject>Stiffness</subject><subject>Temperature</subject><subject>Time Factors</subject><issn>1344-6223</issn><issn>1873-4162</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkUtv3SAQRlHVqEnT_oWIZTd2eRm4m6pVlD6kSF002QZhGCfcYuOAXSn_vjg3d9NNVyDmzHziDEIXlLSUUPlx30a4t3EE3zJCeUt0Swh9hc6oVrwRVLLX9c6FaCRj_BS9LWVfAUWJeoNOmSBdJ9nuDN3dPACGYQC34DTgBcYZsl3WDDhNeKnFEdyDnYKzEdsyV65sYA73KeMx5SUUHCZscQyPa_B4ttkOQ30Zk4f4Dp0MNhZ4_3Keo9uvVzeX35vrn99-XH65bpwQamlU1yu3U1xa2UmtreZECRCSC-c7qSR46XUvBec9Y47tCOxo13vZwQBad4yfow-HuXNOjyuUxYyhOIjRTpDWYqgQmjFRIyoqD6jLqZQMg5lzGG1-MpSYza3Zm6Nbs7k1RJuqrjZevGSs_VY7th1lVuDzAYD60z8BsikuwOTAh1y9GZ_C_zM-_TPCxfAs_zc8QdmnNU_Vo6GmMEPMr23D24IpJ4RoJfhf6k2h_Q</recordid><startdate>20131101</startdate><enddate>20131101</enddate><creator>Ozawa, Masayoshi</creator><creator>Iwadate, Kimiharu</creator><creator>Matsumoto, Sari</creator><creator>Asakura, Kumiko</creator><creator>Ochiai, Eriko</creator><creator>Maebashi, Kyoko</creator><general>Elsevier Ireland Ltd</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20131101</creationdate><title>The effect of temperature on the mechanical aspects of rigor mortis in a liquid paraffin model</title><author>Ozawa, Masayoshi ; Iwadate, Kimiharu ; Matsumoto, Sari ; Asakura, Kumiko ; Ochiai, Eriko ; Maebashi, Kyoko</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c447t-75b7c9736a65688a83074e4634cd5676ed6d8b6433b22c290e915bd65efe88523</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Animals</topic><topic>Forensic Pathology - methods</topic><topic>Internal Medicine</topic><topic>Liquid paraffin model</topic><topic>Male</topic><topic>Muscle, Skeletal - pathology</topic><topic>Paraffin Embedding - methods</topic><topic>Postmortem Changes</topic><topic>Rats</topic><topic>Rats, Sprague-Dawley</topic><topic>Rigor mortis</topic><topic>Rigor Mortis - pathology</topic><topic>Stiffness</topic><topic>Temperature</topic><topic>Time Factors</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ozawa, Masayoshi</creatorcontrib><creatorcontrib>Iwadate, Kimiharu</creatorcontrib><creatorcontrib>Matsumoto, Sari</creatorcontrib><creatorcontrib>Asakura, Kumiko</creatorcontrib><creatorcontrib>Ochiai, Eriko</creatorcontrib><creatorcontrib>Maebashi, Kyoko</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Legal medicine (Tokyo, Japan)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ozawa, Masayoshi</au><au>Iwadate, Kimiharu</au><au>Matsumoto, Sari</au><au>Asakura, Kumiko</au><au>Ochiai, Eriko</au><au>Maebashi, Kyoko</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The effect of temperature on the mechanical aspects of rigor mortis in a liquid paraffin model</atitle><jtitle>Legal medicine (Tokyo, Japan)</jtitle><addtitle>Leg Med (Tokyo)</addtitle><date>2013-11-01</date><risdate>2013</risdate><volume>15</volume><issue>6</issue><spage>293</spage><epage>297</epage><pages>293-297</pages><issn>1344-6223</issn><eissn>1873-4162</eissn><abstract>Abstract Rigor mortis is an important phenomenon to estimate the postmortem interval in forensic medicine. Rigor mortis is affected by temperature. We measured stiffness of rat muscles using a liquid paraffin model to monitor the mechanical aspects of rigor mortis at five temperatures (37, 25, 10, 5 and 0 °C). At 37, 25 and 10 °C, the progression of stiffness was slower in cooler conditions. At 5 and 0 °C, the muscle stiffness increased immediately after the muscles were soaked in cooled liquid paraffin and then muscles gradually became rigid without going through a relaxed state. This phenomenon suggests that it is important to be careful when estimating the postmortem interval in cold seasons.</abstract><cop>Ireland</cop><pub>Elsevier Ireland Ltd</pub><pmid>24055629</pmid><doi>10.1016/j.legalmed.2013.08.001</doi><tpages>5</tpages></addata></record> |
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| ispartof | Legal medicine (Tokyo, Japan), 2013-11, Vol.15 (6), p.293-297 |
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| language | eng |
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| source | MEDLINE; Elsevier ScienceDirect Journals |
| subjects | Animals Forensic Pathology - methods Internal Medicine Liquid paraffin model Male Muscle, Skeletal - pathology Paraffin Embedding - methods Postmortem Changes Rats Rats, Sprague-Dawley Rigor mortis Rigor Mortis - pathology Stiffness Temperature Time Factors |
| title | The effect of temperature on the mechanical aspects of rigor mortis in a liquid paraffin model |
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