著者
目叶 裕史 江口 直人 加藤 たつ郎 中村 中
出版者
一般社団法人 日本透析医学会
雑誌
日本透析医学会雑誌 (ISSN:13403451)
巻号頁・発行日
vol.49, no.1, pp.47-52, 2016 (Released:2016-01-28)
参考文献数
13
被引用文献数
1

血液透析の分野は生命予後の改善や生活の質 (quality of life : QOL) の向上のため, 浄化法や管理方法の検討がされており, 当院では内部濾過を踏まえた透析量増大を考え, 現在350mL/min以上の高血液流量で治療を行っている. 日常的な制限を極力設けない高血液流量透析のQOLを含む生命予後への影響について当院のデータと日本透析医学会やほかの研究データと比較した. 高血液流量透析は透析効率や透析量, 栄養指標, QOL評価が高い傾向にあり, 粗死亡率は5.2%と十分に低く, 透析歴20年以上の長期透析患者は21.9%と高い割合を占めた. 高い血液流量により内部濾過が増えれば予後不良因子を多く除去できる大きな透析量が得られ, その大きな透析量が食事制限を必要としない栄養状態の良好な生活が維持できてQOLの向上に貢献していると考える. 高血液流量透析は生命予後の改善, QOLの向上のため重要な基本条件である.
著者
佐藤 英雄 中村 中六 日比谷 京
出版者
公益社団法人 日本水産学会
雑誌
日本水産学会誌 (ISSN:00215392)
巻号頁・発行日
vol.28, no.6, pp.579-584, 1962-06-25 (Released:2008-02-29)
参考文献数
12
被引用文献数
19 21

The processes of sex differentiation and sexual maturation of the eel, Anguilla japonica, were examined. In glass eels, the primordial germ cells standing in a line are found in each of the gonads (Pl. I, Fig. 1). The cells gradually increase in number under about 15cm in total length of the bodies, and steadily increase at 18cm or thereabout (Pl. 1, Fig. 2). The sex may differentiate at this stage, and histological structures of gonads become characteristic in both sexes, while ovaries and testes hardly be distinguished by means of their external appearance until the eels come to about 30cm in total length (Pl. I, Fig. 3 and 4). As they grow longer than some 30cm, the discriminative features of ovaries and testes become appreciable. In view of the observations described above, it is suggested that there is neither “phase of precocious feminization” nor “phase of juvenile hermaphroditism” in A. japonica. In testes of eels less than about 40cm, there may be seen many spermatogonia but no spermatocyte (Pl. I, Fig. 5), and the former gradually increase in number accompanying with body growth (Pl. I, Fig. 6). In silver eels having catadromous nature, a number of spermatocytes are found in testes, but spermatids scarcely ever (Pl. II, Fig. 1). In ovaries of eels ranging in total length from 25cm to 40cm, oogonia and primary oocytes are found intermingling (Pl. II, Fig. 3 and 4). As they grow over about 40cm, oocytes increase fast. In catadromous female fish, the cells develop up to the yolk vesicle stage (Pl. II, Fig, 5). It is generally found that the gonadal maturation of eels advance mostly in autumn and somewhat degenerate in winter, though the seasonal fluctuation in maturation are not so obvious.