Wyniki wyszukiwania

1

Does acclimation reduce the negative effects of acorn tannins in the wood mouse Apodemus speciosus?

100%

Shimada T., Saitoh T., Matsui T.

Acta Theriologica

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2004

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tom 49

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nr 2

Acclimation as a mechanism of mitigating the damaging effects of acorn tannins was examined in the Japanese wood mouse Apodemus speciosus Temminck, 1844. Mice were fed the two types of diet: a control diet laboratory chow for mice), and acorns of Quercus serrata (QS), which differ in tannin contents (control = 0%, QS = 2.7% tannic acid equivalent). Body weight changes and digestive abilities were compared between the first stage (Days 1 to 5; Day 0 was defined as the first day of acorn feeding) and the second stage (Days 6 to 10). The amount of salivary proline-rich proteins (PRPs), which are thought to be defensive products to tannins, was measured before and after the experiment. The responses of the wood mice to QS acorns differed between stages: decreases in body weight during the second stage were less than half those that occurred during the first stage; digestive abilities tended to improve; and the relative amount of PRPs after the experiment increased by a factor of five compared with the value recorded before the experiment in the QS-feeding mice. These results suggest that the negative effects of ingesting acorn tannins may be reduced by acclimation, which may result primarily from the induction of PRP production.

2

Host specificity and in vivo infectivities of the mouse coccidian parasites Eimeria krijgsmanni

76%

Hashimoto K., Tanaka T., Matsubayashi M., Endo K., Umemiya-Shirafuji R., Matsui T.

Acta Parasitologica

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2014

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tom 59

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nr 2

In the present study, infection experiments of E. krijgsmanni using various hosts were conducted to elucidate the host specificity among some animals and the infectivity to mouse strains. According to the results, the infection was not found in most animals, except for rats, in which some oocyst shedding was detected, and there was no significant difference in infectivity among mouse strains. Additionally, oocyst shedding was hardly detectable in a secondary infection to immunocompetent mice, although it was found in immunodeficient mice. These results indicated that only immunocompetent mice could develop adaptive immunity against reinfection by stimuli of the primary infection. Furthermore, the infection experiments were performed with splenic macrophage (Mφ)-depleted mice with a reagent and Beige (Bg) mice known to be a strain of mice with low NK cell activity. No significant effect was found in primary or secondary infections in the Mφ-depleted mice, whereas the mortality rate was clearly increased in Bg mice inoculated with a large number of oocysts. Their oocyst shedding was similar to that of immunocompetent hosts. Taken together, these results suggested that Mφ has only a minor role in the immune response, but the NK cell has an important function in resistance to primary infection of E. krijgsmanni.

3

Susceptibility to various coccidiostats in the murine coccidian parasite Eimeria krijgsmanni

64%

Inoue K., Tsujio M., Matsubayashi M., Inoue R., Hatai H., Andoh M., Abe K., Matsui T., Matsuo T.

Acta Parasitologica

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2019

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tom 64

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nr 2

4

Evaluation of Eimeria krijgsmanni as a murine model for testing the efficacy of anti-parasitic agents

64%

Takeo T., Tanaka T., Matsubayashi M., Tsujio M., Umemiya-Shirafuji R., Tsuji N., Fujisaki K., Matsui T., Matsuo T.

Acta Parasitologica

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2015

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tom 60

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nr 2

Ograniczanie wyników

3 Acta Parasitologica

1 Acta Theriologica

4 Matsui T.

3 Matsubayashi M.

2 Matsuo T.

2 Tanaka T.

2 Tsujio M.

2 Umemiya-Shirafuji R.

1 Abe K.

1 Andoh M.

1 Endo K.

1 Fujisaki K.

1 Hashimoto K.

1 Hatai H.

1 Inoue K.

1 Inoue R.

1 Saitoh T.

1 Shimada T.

1 Takeo T.

1 Tsuji N.

1 2019

1 2015

1 2014

1 2004

Does acclimation reduce the negative effects of acorn tannins in the wood mouse Apodemus speciosus?

Host specificity and in vivo infectivities of the mouse coccidian parasites Eimeria krijgsmanni

Susceptibility to various coccidiostats in the murine coccidian parasite Eimeria krijgsmanni

Evaluation of Eimeria krijgsmanni as a murine model for testing the efficacy of anti-parasitic agents