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Persistence of Trichinella spiralis muscle larvae in natural decaying mice
The influence of natural weather conditions on the viability and reproductive capability of Trichinella spiralis muscle larvae in mouse corpses exposed to summer and winter conditions in the Buenos Aires Province, Argentina, was studied. For this purpose, a total of 49 mouse corpses harbouring muscl...
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| Published in: | Parasitology research (1987) 2012-07, Vol.111 (1), p.249-255 |
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| container_title | Parasitology research (1987) |
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| creator | Riva, Eliana Steffan, Pedro Guzmán, Maricel Fiel, César |
| description | The influence of natural weather conditions on the viability and reproductive capability of
Trichinella spiralis
muscle larvae in mouse corpses exposed to summer and winter conditions in the Buenos Aires Province, Argentina, was studied. For this purpose, a total of 49 mouse corpses harbouring muscle larvae of
T. spiralis
were exposed for a period of 1, 2, 4 and 6 weeks in each of the seasons. Control corpses maintained at 8°C were also included. In summer,
T. spiralis
muscle larvae were recovered from corpses exposed up to 1 week only. The viability of these larvae was 54.2%, and the reproductive capability index in mice (RCI) was 13.1 and significantly lower than the control (
p
|
| doi_str_mv | 10.1007/s00436-012-2826-9 |
| format | article |
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Trichinella spiralis
muscle larvae in mouse corpses exposed to summer and winter conditions in the Buenos Aires Province, Argentina, was studied. For this purpose, a total of 49 mouse corpses harbouring muscle larvae of
T. spiralis
were exposed for a period of 1, 2, 4 and 6 weeks in each of the seasons. Control corpses maintained at 8°C were also included. In summer,
T. spiralis
muscle larvae were recovered from corpses exposed up to 1 week only. The viability of these larvae was 54.2%, and the reproductive capability index in mice (RCI) was 13.1 and significantly lower than the control (
p
< 0.0005). Morphologic deterioration and reduction in the glycogen content of cysts and larvae were observed at the second week of exposition. By week 4, larval stages of
Dermestes maculatus
were observed inside corpses, and 22 live muscle larvae of
T. spiralis
were obtained by artificial digestion of their bodies. In winter,
T. spiralis
muscle larvae were always recovered, the viability being almost 100% except for a significant reduction by week 6 of exposition (
p
< 0.0001). For this season, the RCI were 50.5, 46.9, 59.7 and 45.2 for the periods of 1, 2, 4 and 6 weeks of exposition, respectively. The morphology of cysts and larvae did not show alterations, and no variations were observed as well in glycogen reserves during the 6-week period of exposition. RCI of non-exposed muscle larvae were always significantly higher that any of those recorded from muscle larvae that belonged to exposed corpses (
p
= 0.0005). The present results demonstrate that muscle larvae of
T. spiralis
are able to survive in nature and keep infective for a 1-week period in summer and at least for 6 weeks in winter, becoming an important source of infection for scavengers. In summer, larvae stages of
D. maculatus
, and probably other insects, may play an important role in the survival and transmission of
T. spiralis
in the sylvatic cycle.</description><identifier>ISSN: 0932-0113</identifier><identifier>EISSN: 1432-1955</identifier><identifier>DOI: 10.1007/s00436-012-2826-9</identifier><identifier>PMID: 22281547</identifier><identifier>CODEN: PARREZ</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer-Verlag</publisher><subject>Animals ; Argentina ; Biological and medical sciences ; Biomedical and Life Sciences ; Biomedicine ; Cadaver ; Dermestes maculatus ; Fundamental and applied biological sciences. Psychology ; General aspects ; General aspects and techniques. Study of several systematic groups. Models ; Health aspects ; Immunology ; Invertebrates ; Larva - physiology ; Larval development ; Male ; Medical Microbiology ; Mice ; Microbiology ; Muscles - parasitology ; Original Paper ; Physiological aspects ; Survival Analysis ; Temperature ; Time Factors ; Trichinella spiralis ; Trichinella spiralis - isolation & purification ; Trichinella spiralis - physiology ; Virulence (Microbiology) ; Weather</subject><ispartof>Parasitology research (1987), 2012-07, Vol.111 (1), p.249-255</ispartof><rights>Springer-Verlag 2012</rights><rights>2015 INIST-CNRS</rights><rights>COPYRIGHT 2012 Springer</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c446t-34ff2d068b3f81fde34f412a757fb1422283c9d57fab43411315d029a8fbd4453</citedby><cites>FETCH-LOGICAL-c446t-34ff2d068b3f81fde34f412a757fb1422283c9d57fab43411315d029a8fbd4453</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=26117431$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/22281547$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Riva, Eliana</creatorcontrib><creatorcontrib>Steffan, Pedro</creatorcontrib><creatorcontrib>Guzmán, Maricel</creatorcontrib><creatorcontrib>Fiel, César</creatorcontrib><title>Persistence of Trichinella spiralis muscle larvae in natural decaying mice</title><title>Parasitology research (1987)</title><addtitle>Parasitol Res</addtitle><addtitle>Parasitol Res</addtitle><description>The influence of natural weather conditions on the viability and reproductive capability of
Trichinella spiralis
muscle larvae in mouse corpses exposed to summer and winter conditions in the Buenos Aires Province, Argentina, was studied. For this purpose, a total of 49 mouse corpses harbouring muscle larvae of
T. spiralis
were exposed for a period of 1, 2, 4 and 6 weeks in each of the seasons. Control corpses maintained at 8°C were also included. In summer,
T. spiralis
muscle larvae were recovered from corpses exposed up to 1 week only. The viability of these larvae was 54.2%, and the reproductive capability index in mice (RCI) was 13.1 and significantly lower than the control (
p
< 0.0005). Morphologic deterioration and reduction in the glycogen content of cysts and larvae were observed at the second week of exposition. By week 4, larval stages of
Dermestes maculatus
were observed inside corpses, and 22 live muscle larvae of
T. spiralis
were obtained by artificial digestion of their bodies. In winter,
T. spiralis
muscle larvae were always recovered, the viability being almost 100% except for a significant reduction by week 6 of exposition (
p
< 0.0001). For this season, the RCI were 50.5, 46.9, 59.7 and 45.2 for the periods of 1, 2, 4 and 6 weeks of exposition, respectively. The morphology of cysts and larvae did not show alterations, and no variations were observed as well in glycogen reserves during the 6-week period of exposition. RCI of non-exposed muscle larvae were always significantly higher that any of those recorded from muscle larvae that belonged to exposed corpses (
p
= 0.0005). The present results demonstrate that muscle larvae of
T. spiralis
are able to survive in nature and keep infective for a 1-week period in summer and at least for 6 weeks in winter, becoming an important source of infection for scavengers. In summer, larvae stages of
D. maculatus
, and probably other insects, may play an important role in the survival and transmission of
T. spiralis
in the sylvatic cycle.</description><subject>Animals</subject><subject>Argentina</subject><subject>Biological and medical sciences</subject><subject>Biomedical and Life Sciences</subject><subject>Biomedicine</subject><subject>Cadaver</subject><subject>Dermestes maculatus</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>General aspects</subject><subject>General aspects and techniques. Study of several systematic groups. Models</subject><subject>Health aspects</subject><subject>Immunology</subject><subject>Invertebrates</subject><subject>Larva - physiology</subject><subject>Larval development</subject><subject>Male</subject><subject>Medical Microbiology</subject><subject>Mice</subject><subject>Microbiology</subject><subject>Muscles - parasitology</subject><subject>Original Paper</subject><subject>Physiological aspects</subject><subject>Survival Analysis</subject><subject>Temperature</subject><subject>Time Factors</subject><subject>Trichinella spiralis</subject><subject>Trichinella spiralis - isolation & purification</subject><subject>Trichinella spiralis - physiology</subject><subject>Virulence (Microbiology)</subject><subject>Weather</subject><issn>0932-0113</issn><issn>1432-1955</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNqFkU-P1iAQxonRuK-rH8CL4WLipSsDU9oeNxv_ZhM9rGdC6fDKpqWv0Jrst5emr3rTcABmfjM8zMPYSxBXIETzNguBSlcCZCVbqavuETsAKllBV9eP2UF05SwA1AV7lvO9ENBoxKfsQkrZQo3NgX3-SimHvFB0xGfP71Jw30OkcbQ8n0KyY8h8WrMbiY82_bTEQ-TRLmtJ8YGcfQjxyKfg6Dl74u2Y6cV5v2Tf3r-7u_lY3X758Onm-rZyiHqpFHovB6HbXvkW_EAlgCBtUze-B9ykKdcN5WZ7VFjUQz0I2dnW9wNirS7Zm73vKc0_VsqLmUJ2m-JI85oNYCe1aKDV_0eFBKyh6bCgVzt6tCOZEP28JOvKGqh8bo7kQ4lfK6G3qapNBuwFLs05J_LmlMJk00PpajZ7zG6PKfaYzR7TlZpXZz1rP9Hwp-K3HwV4fQZsdnb0yUYX8l9OAzSooHBy53JJxSMlcz-vKZax_-P1X0XepZk</recordid><startdate>20120701</startdate><enddate>20120701</enddate><creator>Riva, Eliana</creator><creator>Steffan, Pedro</creator><creator>Guzmán, Maricel</creator><creator>Fiel, César</creator><general>Springer-Verlag</general><general>Springer</general><scope>IQODW</scope><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><scope>M7N</scope></search><sort><creationdate>20120701</creationdate><title>Persistence of Trichinella spiralis muscle larvae in natural decaying mice</title><author>Riva, Eliana ; Steffan, Pedro ; Guzmán, Maricel ; Fiel, César</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c446t-34ff2d068b3f81fde34f412a757fb1422283c9d57fab43411315d029a8fbd4453</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Animals</topic><topic>Argentina</topic><topic>Biological and medical sciences</topic><topic>Biomedical and Life Sciences</topic><topic>Biomedicine</topic><topic>Cadaver</topic><topic>Dermestes maculatus</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>General aspects</topic><topic>General aspects and techniques. Study of several systematic groups. Models</topic><topic>Health aspects</topic><topic>Immunology</topic><topic>Invertebrates</topic><topic>Larva - physiology</topic><topic>Larval development</topic><topic>Male</topic><topic>Medical Microbiology</topic><topic>Mice</topic><topic>Microbiology</topic><topic>Muscles - parasitology</topic><topic>Original Paper</topic><topic>Physiological aspects</topic><topic>Survival Analysis</topic><topic>Temperature</topic><topic>Time Factors</topic><topic>Trichinella spiralis</topic><topic>Trichinella spiralis - isolation & purification</topic><topic>Trichinella spiralis - physiology</topic><topic>Virulence (Microbiology)</topic><topic>Weather</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Riva, Eliana</creatorcontrib><creatorcontrib>Steffan, Pedro</creatorcontrib><creatorcontrib>Guzmán, Maricel</creatorcontrib><creatorcontrib>Fiel, César</creatorcontrib><collection>Pascal-Francis</collection><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><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><jtitle>Parasitology research (1987)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Riva, Eliana</au><au>Steffan, Pedro</au><au>Guzmán, Maricel</au><au>Fiel, César</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Persistence of Trichinella spiralis muscle larvae in natural decaying mice</atitle><jtitle>Parasitology research (1987)</jtitle><stitle>Parasitol Res</stitle><addtitle>Parasitol Res</addtitle><date>2012-07-01</date><risdate>2012</risdate><volume>111</volume><issue>1</issue><spage>249</spage><epage>255</epage><pages>249-255</pages><issn>0932-0113</issn><eissn>1432-1955</eissn><coden>PARREZ</coden><abstract>The influence of natural weather conditions on the viability and reproductive capability of
Trichinella spiralis
muscle larvae in mouse corpses exposed to summer and winter conditions in the Buenos Aires Province, Argentina, was studied. For this purpose, a total of 49 mouse corpses harbouring muscle larvae of
T. spiralis
were exposed for a period of 1, 2, 4 and 6 weeks in each of the seasons. Control corpses maintained at 8°C were also included. In summer,
T. spiralis
muscle larvae were recovered from corpses exposed up to 1 week only. The viability of these larvae was 54.2%, and the reproductive capability index in mice (RCI) was 13.1 and significantly lower than the control (
p
< 0.0005). Morphologic deterioration and reduction in the glycogen content of cysts and larvae were observed at the second week of exposition. By week 4, larval stages of
Dermestes maculatus
were observed inside corpses, and 22 live muscle larvae of
T. spiralis
were obtained by artificial digestion of their bodies. In winter,
T. spiralis
muscle larvae were always recovered, the viability being almost 100% except for a significant reduction by week 6 of exposition (
p
< 0.0001). For this season, the RCI were 50.5, 46.9, 59.7 and 45.2 for the periods of 1, 2, 4 and 6 weeks of exposition, respectively. The morphology of cysts and larvae did not show alterations, and no variations were observed as well in glycogen reserves during the 6-week period of exposition. RCI of non-exposed muscle larvae were always significantly higher that any of those recorded from muscle larvae that belonged to exposed corpses (
p
= 0.0005). The present results demonstrate that muscle larvae of
T. spiralis
are able to survive in nature and keep infective for a 1-week period in summer and at least for 6 weeks in winter, becoming an important source of infection for scavengers. In summer, larvae stages of
D. maculatus
, and probably other insects, may play an important role in the survival and transmission of
T. spiralis
in the sylvatic cycle.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer-Verlag</pub><pmid>22281547</pmid><doi>10.1007/s00436-012-2826-9</doi><tpages>7</tpages></addata></record> |
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| ispartof | Parasitology research (1987), 2012-07, Vol.111 (1), p.249-255 |
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| language | eng |
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| subjects | Animals Argentina Biological and medical sciences Biomedical and Life Sciences Biomedicine Cadaver Dermestes maculatus Fundamental and applied biological sciences. Psychology General aspects General aspects and techniques. Study of several systematic groups. Models Health aspects Immunology Invertebrates Larva - physiology Larval development Male Medical Microbiology Mice Microbiology Muscles - parasitology Original Paper Physiological aspects Survival Analysis Temperature Time Factors Trichinella spiralis Trichinella spiralis - isolation & purification Trichinella spiralis - physiology Virulence (Microbiology) Weather |
| title | Persistence of Trichinella spiralis muscle larvae in natural decaying mice |
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