Histological Changes in Interrenal Tissue of the Goldfish, Carassius : Histological Changes in Interrenal Tissue of the Goldfish, Carassius ouratus, following X-Irradiation*

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概要

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• Goldfish, Carassius auratus, irradiated with 4 kR or more of X-rays and kept at 230C invariably died around 10 days after irradiation, while those exposed to 1 kR or less survived for at least one month under the same temperature condition, without showing any harmful effects. Interrenal cells located in the head kidney of the goldfish decreased in size after hypophysectomy and underwent a hypertrophy following administration of mammalian ACTH. Six to nine days after whole-body irradiation with 1-16 kR of X-rays, interrenal cells were definitely enlarged. In hypophysectomized fish a similar X-irradiation failed to cause interrenal cell hypertrophy. Irradiation of the head of goldfish resulted in a hypertrophy of interrenal cells, even if the posterior part of the body containing the head kidney was shielded from X-rays. These findings seem to suggest that, in the goldfish, secretion of ACTH from the hypophysis increases at least for a period following X-irradiation.

• 日本放射線影響学会の論文

著者

• 新井 良一

  National Institute Of Radiological Sciences

• 青木 一子

  National Institute of Radiological Sciences

• 江上 信雄

  National Institute of Radiological Sciences

関連論文

• Histological Changes in Interrenal Tissue of the Goldfish, Carassius : Histological Changes in Interrenal Tissue of the Goldfish, Carassius ouratus, following X-Irradiation*
• X線照射後の魚類卵巣の変化にあずかる生殖腺刺激ホルモンの役割(形態・内分泌)
• X線照射をうけたキンギョの生存期間に対する脳下垂体・頭腎除去の影響(発生・実験形態)
• X線照射をうけたキンギョの頭腎の組織学(発生・実験形態)

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