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Related Experiment Videos

Toxicologic evaluation of yessotoxin

H Ogino1, M Kumagai, T Yasumoto

  • 1Kagome Research Institute, Kagome Co., Ltd., Tochigi, Japan.

Natural Toxins
|January 1, 1997
PubMed
Summary

Yessotoxin (YTX), linked to shellfish poisoning, did not cause intestinal issues or inhibit key enzymes. It demonstrated low toxicity in mice and weak cytotoxic effects, with no observed hemolytic or fish toxicity.

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Discussion.

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Area of Science:

  • Marine Toxinology
  • Ecotoxicology
  • Biochemistry

Background:

  • Yessotoxin (YTX) is a marine toxin historically associated with diarrhetic shellfish poisoning (DSP).
  • Previous understanding of YTX's biological activity and toxicity requires further clarification.

Purpose of the Study:

  • To comprehensively evaluate the toxicological profile of Yessotoxin (YTX).
  • To assess YTX's effects on mammalian systems and its cytotoxic, antifungal, hemolytic, and ichthyotoxic properties.

Main Methods:

  • Administration of YTX to mice via oral gavage at a dose of 1.0 mg/kg.
  • In vitro assays to determine cytotoxic and antifungal activities.
  • Assays to evaluate hemolytic and ichthyotoxic effects.

Main Results:

  • YTX did not induce intestinal fluid accumulation or inhibit protein phosphatase 2A.
  • Oral administration of YTX at 1.0 mg/kg was non-lethal to mice.
  • YTX exhibited weak cytotoxic and antifungal activities, with no observed hemolytic or ichthyotoxic effects.

Conclusions:

  • Yessotoxin possesses a low acute oral toxicity profile in mice.
  • YTX demonstrates limited biological activity, showing weak cytotoxicity and antifungal properties.
  • The toxin does not exhibit significant hemolytic or ichthyotoxic effects, differentiating it from other marine toxins.

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