[Case of Hashimoto's disease with abnormal binding of thyroid hormone with serum gamma globulin fraction].
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Biomedical subjects
Publications and source records attributed to K Shiomi.
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Instead of tetrodotoxin, significant amounts of tetrodotoxin-related substances with no mouse lethality were detected in the nontoxic liver specimen of puffer fish, Takifugu xanthopterus. The tetrodotoxin-related substances, which were demonstrated to be tetrodotoxin derivatives by gas chromatography-mass spectrometry analysis, were similar to tetrodonic acid in HPLC but distinguishable from it in electrophoresis. Our results suggest that nontoxic puffer fish contains nontoxic tetrodotoxin derivatives as precursors or metabolites of tetrodotoxin.