| Effect of temperature on fatty acid composition in each lipid fraction of Spirometra erinaceieuropaei plerocercoids. | |
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MedLine Citation:
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PMID: 10701556 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The effects of temperature and host fatty acids on the fatty acid contents of Spirometra erinaceieuropaei plerocercoids were investigated to clarify their role in sparganosis. After 24 hr incubation at 18 C in host snake serum, omega6 series fatty acids, especially arachidonic acid in the phospholipid fraction of the plerocercoids, increased compared with those of plerocercoids incubated at 37 C. The changes in the ratio of polyunsaturated to saturated fatty acids in the phospholipid fraction of plerocercoids incubated in physiological saline for 6 hr at 10 C were almost the same as the changes at 37 C. The ratio of polyunsaturated to saturated fatty acids of the triglyceride fraction showed almost opposite change versus the phospholipid fraction. The percentage of arachidonic acid in the phospholipid fraction of plerocercoids increased during the first 3 hr of incubation and then decreased, regardless of temperature. At 37 C, the percentage of arachidonic acid in the free fatty acid fraction fell for the first 3 hr of incubation and was significantly elevated at the end of the 6-hr incubation. At 10 C, however, arachidonic acid in the free fatty acid fraction decreased for the first hour of incubation, increased at 3 hr of incubation, then decreased again. These results suggest that fatty acids of the plerocercoids are frequently exchanged between fractions. Plerocercoids can mobilize arachidonic acid to the free fatty acid fraction more quickly at lower temperature than at higher temperature. They may utilize mobilized arachidonic acid early in the infection stage to produce prostaglandins. Alternatively, they can incorporate arachidonic acid into the phospholipid fraction again when arachidonic acid is readily available in the environment. |
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Authors:
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T Fukushima; T Gao; A Isobe; N Hojo; K Shiwaku; Y Yamane |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: The Journal of parasitology Volume: 86 ISSN: 0022-3395 ISO Abbreviation: J. Parasitol. Publication Date: 2000 Feb |
Date Detail:
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Created Date: 2000-03-13 Completed Date: 2000-03-13 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 7803124 Medline TA: J Parasitol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 7-11 Citation Subset: IM |
Affiliation:
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Department of Environmental Medicine, Shimane Medical University, Izumo City, Japan. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Arachidonic Acid / analysis Elapidae Fatty Acids / analysis* Fatty Acids, Omega-3 / analysis Spirometra / chemistry* Temperature* |
| Chemical | |
Reg. No./Substance:
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0/Fatty Acids; 0/Fatty Acids, Omega-3; 506-32-1/Arachidonic Acid |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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