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Distribution of tetrodotoxin in the xanthid crab (Atergatis floridus) collected in the coastal waters of Kanagawa and Wakayama Prefectures.
MedLine Citation:
PMID:  20483247     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
The objective of this investigation was to study the distribution of tetrodotoxin (TTX) in the xanthid crab (Atergatis floridus) found in the coastal waters of Kanagawa and Wakayama Prefectures of Japan using mouse assay methods. We used 32 crab samples (18 males and 14 females) and toxicity was analyzed on 13 parts of the body of each sample. The muscle of chelipeds was found to be toxic in all the samples with a wide range of toxicity (5-237 MU/g), whereas the toxicity in the muscle of the cephalothorax was found to be non-toxic (below detectable limit) in all the samples [Narita, H., Watanabe, K., Baba, K., Ohgami, H., Ai, T.K., Igarashi, Y., Nara, M., Noguchi, T., Hashimoto, K., 1987. The toxicity of digestive gland of trampet shells inhabiting the coast of Shizuoka Prefecture. J. Food Hyg. Soc. Jpn. 28, 115-118.]. Further investigation of different parts of the chelipeds indicated that the muscle of the palm and carpus are usually toxic and that of merus and ischium are almost non-toxic. Toxicity of the muscles of palm ranged between 7 and 52 MU/g, whereas toxicity of the muscle of ischium was below detectable limit. Results from our study indicate clear contrast in the distribution of tetrodotoxin in muscles of different parts of the xanthid crabs, plausibly due to some inherent physiological mechanism. Further investigation is necessary to understand the mechanism responsible for such contrast.
Authors:
Toshio Saito; Takahito Kohama; Kenjiro Ui; Shugo Watabe
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Publication Detail:
Type:  Journal Article     Date:  2005-10-28
Journal Detail:
Title:  Comparative biochemistry and physiology. Part D, Genomics & proteomics     Volume:  1     ISSN:  1878-0407     ISO Abbreviation:  Comp. Biochem. Physiol. Part D Genomics Proteomics     Publication Date:  2006 Mar 
Date Detail:
Created Date:  2010-05-20     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101270611     Medline TA:  Comp Biochem Physiol Part D Genomics Proteomics     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  158-62     Citation Subset:  -    
Affiliation:
School of Marine Science and Technology, Tokai University, 3-20-1, Shimizu orido, Shizuoka, Japan.
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