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フルテキストURLA020004000101.pdf ( 6.2MB ) 公開日 2010-04-16
タイトルA PHYLOGENETICAL SURVEY OF HEMOCYTOPOIETIC TISSUES IN SUBMAMMALIAN VERTEBRATES : WITH SPECIAL REFERENCE TO THE DIFFERENTIATION OF THE LYMPHOCYTE AND LYMPHOID TISSUE
作成者Kanesada, Akira
作成者ヨミカネサダ, アキラ
作成者所属山口大学医学部
内容記述(抄録等)A phylogenetical survey of hemocytopoietis tissues was made of tue submammalian vertebrate series from cyclostomes up to birds, with special emphasis on the differentiation of the lymphocyte and lymphoid tissius. The chief results obtained are as follows: 1.At the level of cyclostomes, only granulocytopoieric tissus is differentiated in the spriak valve of intestine which corresponds to spleen of higher vertebrates. Neither eryhrocytopoietic nor lymphocytopoietic tissue is found anywhere at this level. 2.At the succeeding level, represented by the elasmobranchs, both granulocytopoietic and lymphocytopoietic tissues become segregated, but they are situated quite separately in different organs, the former being in the ovaries and testes while the latter in The white pulp of spleen and in the subepithelial layer of intestinal mucosa. 3.In the teleost fishes, the kidney becomes the most important organ of graulocytopoiesis, while the chief lymphocytopoietic centers are located in the spleen and in the intestinal mucosa as in the elasmobranchs. No erythropoietic locus is found in any organ at this level. 4.At the still higher level, represented by the urodeles, the three hemopoietic tissues - erythropoietic, granulopoietic and lymphopoietic - become differentiated altogether for the first time, but they are still clearly separated each other. Namely, the erythropoietic tissue occurs in the red splenic pulp; the granulopoietic tissue in the subcapsular layer of the liver (and in the giant salamander in the interlobular spaces as well ); ond the lymphopoietis tissue in the white pulp of spleen as well as in the intestinal mucosa. Hemopoietic bone marrow is not yet differentiated at this level. 5.In the most advanced stages, represented by the anurans, reptiles and bild, the hemopoietic bone marrow is differentiated and function as the chief eryhropoietic and graunlopoietic organ; while the chief lympocytopoietic centers are The same as in the urpdeles,fishes and eleasmobranchs.6.The spleen is an important seat of lymphocytopoiesis throughout the vertebrate series, with the exception of cyclostmes in organ (the spiral valve of intestine) represent the chief granuloopoitetic center. Only in urodeles dose the spleen participate in erythropoiesis. In other animals it contains no myeloid tissue.7.Lymphocytopoietic tissue comes into appearance for the first time in the spleen and in The intestinal mucosa at the level of elasmobranchs . Other evidence were also presented that general lymphocytes first appear at this level. 8.In lower vertebarates, the general ciculation contains abundant immature red cells nad seems to play an important role in erythropoiesis.
本文言語eng
主題内科系臨床医学
資料タイプtext
ファイル形式application/pdf
出版者Yamaguchi University Graduate School of Medicine
NII資料タイプ紀要論文
ISSN0513-1812
NCIDAA00594272
学内刊行物(紀要等)The bulletin of the Yamaguchi Medical School
掲載誌名The bulletin of the Yamaguchi Medical School
掲載誌名別表記山口医科大学紀要
4
1
開始ページ1
終了ページ35
発行日1956-07-31
著者版/出版社版出版社版
リポジトリIDA020004000101
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/A020004000101