JSM Mycotoxins

JSM Mycotoxins

Online ISSN : 1881-0128
Print ISSN : 0285-1466
ISSN-L : 0285-1466

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Volume 1982, Issue 15

Displaying 1-10 of 10 articles from this issue

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Ciguatera and Diarrhetic Shellfish Poisoning

T. YASUMOTO

1982 Volume 1982 Issue 15 Pages 1-3
Published: June 30, 1982
Released on J-STAGE: August 04, 2009

DOIhttps://doi.org/10.2520/myco1975.1982.15_1

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Paralytic Shellfish Poisons

Y. OSHIMA

1982 Volume 1982 Issue 15 Pages 4-7
Published: June 30, 1982
Released on J-STAGE: August 04, 2009

DOIhttps://doi.org/10.2520/myco1975.1982.15_4

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Radioimmunoassay and Enzymeimmunoassy

Principle and Application

A. TSUJI

1982 Volume 1982 Issue 15 Pages 8-12
Published: June 30, 1982
Released on J-STAGE: August 04, 2009

DOIhttps://doi.org/10.2520/myco1975.1982.15_8

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Chemical structures of new metabolites of T-2 toxin

T. YOSHIZAWA, T. SAKAMOTO, Y. AYANO, C.J. MIROCHA

1982 Volume 1982 Issue 15 Pages 13-15
Published: June 30, 1982
Released on J-STAGE: August 04, 2009

DOIhttps://doi.org/10.2520/myco1975.1982.15_13

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Effects of T-2 toxin on serological responses of broiler chicks

S. SATO, T. OHYA, S. HOMMA, M. TOMIZAWA, T. YAGUCHI, T. TATSUNO

1982 Volume 1982 Issue 15 Pages 16-18
Published: June 30, 1982
Released on J-STAGE: August 04, 2009

DOIhttps://doi.org/10.2520/myco1975.1982.15_16

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The uncoupling action of skyrin and the involvement of 6, 6'-hydroxyl groups in the uncoupling action on mitochondrial respiration

K. KAWAI, T. NAKAMARU, Y. NOZAWA

1982 Volume 1982 Issue 15 Pages 19-21
Published: June 30, 1982
Released on J-STAGE: August 04, 2009

DOIhttps://doi.org/10.2520/myco1975.1982.15_19

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Effects of anthraquinone pigments, skyrin and emodin, on mitochondrial reactions have been compared. Both pigments exhibited the uncoupling effects on oxidative phosphorylation of isolated rat liver mitochondria, accompaning a weak inhibition on state 3 respiration. Emodin exhibited much stronger uncoupling effect than that of skyrin. O-methylated derivatives of skyrin and emodin at 6, 6'-and 6-hydroxyl group, respectively, did not uncouple mitochondrial respiration, indicating the involvement of these phenolic hydroxyl groups in the uncoupling actions on the oxidative phosphorylation of mitochondria. Skyrin induced mitochondrial swelling in KCl isotonic solution. Whereas emodin die not induce. These results indicate that biological properties of skyrin, which has dimer structure of emodin, and emodin are of some differences from each oter.

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The redox reaction of xanthomegnin and a bypass to the electron transport system in mitochondria

K. KAWAI, M. L. COWGER, Y. NOZAWA

1982 Volume 1982 Issue 15 Pages 22-24
Published: June 30, 1982
Released on J-STAGE: August 04, 2009

DOIhttps://doi.org/10.2520/myco1975.1982.15_22

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Effect of xanthomegnin on respiratory chain of beef heart mitochondria has been investigated by experiments with electron transport particles and enzymes purified from beef heart mitochondria. It was observed, in the experiment with electron transport particles, that xanthomegnin was reduced by NAD-linked respiratory chain but was not reduced by succinate-linked respiratory chain in aerobic condition. Xanthomegnin was quickly reduced upon addition of NADH and was re-oxidized when NADH was exhausted. Xanthomegnin was reduced by purified NADH dehydrogenase complex in the presence of NADH and electrons were passed to cytochrome c without ubiquinone and cytochrome b·c1 complex. The oxygen consumption was markedly accelerated when cytochrome c was added to a reaction mixture which was composed of NADH dehydrogenase complex, cytochrome oxidase, xanthomegnin, and NADH. These results demonstrate that xanthomegnin produces an electron transport shunt from NADH dehydrogenase to cytochrome c in the respiratory chain of mitochondria.

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Hematopoietic injury and liver necrosis in the mice fed chaetochromin-containing moldy rice diet.

K. OHTSUBO

1982 Volume 1982 Issue 15 Pages 25-27
Published: June 30, 1982
Released on J-STAGE: August 04, 2009

DOIhttps://doi.org/10.2520/myco1975.1982.15_25

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Interaction between zearalenone, an estrogenic mycotoxin, and the estrogen receptor of the rat brain

M. KITAGAWA, F. TASHIRO, Y. UENO

1982 Volume 1982 Issue 15 Pages 28-30
Published: June 30, 1982
Released on J-STAGE: August 04, 2009

DOIhttps://doi.org/10.2520/myco1975.1982.15_28

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Mechanism of cytotoxic effect of T-2 toxin on a protozoan, Tetrahymena pyriformis GL

T. IWAHASHI, F. TASHIRO, Y. UENO

1982 Volume 1982 Issue 15 Pages 31-33
Published: June 30, 1982
Released on J-STAGE: August 04, 2009

DOIhttps://doi.org/10.2520/myco1975.1982.15_31

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