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Volume 32 (1958 - 195･･･
- Issue 6 Pages 305-
- Issue 5 Pages 231-
- Issue 4 Pages 163-
- Issue 2-3 Pages 87-
- Issue 1 Pages 1-
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Volume 32, Issue 6
Displaying 1-5 of 5 articles from this issue
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III. The Mode of Reaction of the Blood Lymphocytes and of the Lymphatic Tissue to Ovalb u min in Young Adult Albino RatsHidetoshi Imamura1959 Volume 32 Issue 6 Pages 305-312_1
Published: 1959
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESS1) In an attempt to gain further information concerning the relationship between the lymphocytic blood picture and the lymphocytopoietic activites of the lymphoid organs, variations in mitochondrial number in blood lymphocytes were pursued in relation to histological chages of the lympbatic tissue after single or repeated injections of ovalbumin into young adult male albino rats weighing around 200g.
2) After a single intraperitoneal injection of 20 mg of ovalbumin, the average number of mitochondria per lymphocytes in the blood was significantly elevated already on the 3rd day and thereafter tended to decline; whilst the absolute number of blood lymphecytes showed no increase. In the mesenteric lymph nodes and spleen, there was observed no remarkable alteration in the lymphatic tissue after a single injection.
3) After daily intraperitoneal injections of 20 mg of ovalbumin, both the average number of mitochondria and the absolute number of blood lymphocytes had increased considerably. It was noticed, however, that a marked elevation in mitochondrial number of blood lymphocytes occurred already on the 3rd day, whereas the number of these cells did not show any noticeable increase until the 7th day after the initial injection. In the mesenteric lymph nodes and spleen, there was a marked hyperplasia of the lymphatic tissue, the Flemming's secondary nodules in particular. Besides, new formation of these nodules, though on a smaller scale, was also recognized after repeated injections.
4) On the basis of these findings, it is concluded that a marked elevation of the average number of mitochondria in blood lymphocytes is associated with a hyperplasia of the lymyhatic tissue, and especially of the Flemming's secondary nodules. However the possibility is also suggested, at the same time, that a rise in mitochondrial content of blood lymphocytes may occur without any noticeable hyperplastic change of the lymphocytopoietic tissue.View full abstractDownload PDF (1713K) -
Toshiro Nonaka, Akira Iijima, Shinichi Sato1959 Volume 32 Issue 6 Pages 313-317_3
Published: 1959
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSThe Rathke's pouch was excised from larvae of Bufo vulgaris formosus in the later stage of the neurula, and one group were brought to parabiosis with intact larvae, and the other cultured as single larvae, and differentiation in these two groups were compared.
1) In single larvae, from which the Rathke's pouch was removed, the ventral wall of the infundibulum showed only slight thickening. But nevertheless it was clearly distinguishable from the other part of the infundibulum, and histologically its structure was identical with that of the neurohypophysis. The thyroid in these larvae was atrophied, and their skin color was paler than that of controls. Metamorphosis was inhibited in them.
2) The differentiation of the ventral wall of the infundibuliim in parabiotic adenohypophysectomized larvae advanced to higher degree as compared with that in the single operated larvae, but its cepholocaudal diameter ranged only 1/2-1/4 that of the normal neurohypophysis. The quantitatively higher growth in the parabiotic larvae is considered to indicate the effect of humoral induction by the neurohypophysis of the host. The thyroid in the parabiotic operated larvae showed neither atrophic nor degenerative picture. Macroscopically, no difference in skin picture was obsesved between the host and parabiotic partner, and the latter continuted growth with the former until the attainment of the metamorphosis.View full abstractDownload PDF (1897K) -
Toshiro Nonaka, Tadatoshi Watanabe, Shinichi Sato, Tsuneo Shimada1959 Volume 32 Issue 6 Pages 319-327_6
Published: 1959
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESS1) Using embryos of Bufo vulgalis formosus, relation between I'm (Nal) uptake rate and morphological and histological differentiations of the primordial thyroid was investigated.
2) The course of development of the thyroid was as follows: When the body length measured 15.6 mm (7th day), it had thyroglossal duct, and when it measured 19.3 mm (9th day) the duct disappeared, and the right and left lobes were almost completely separated. When the pody length was 27.8 mm (15th day), epithelial cell group constituting the primordial thyroid began to be divided into small groups. When the body length was 30.9 mm (17th day), primitive follicles were formed, and when it was 31.2 mm (21th day), the colloid was noted.
3) Iodine uptake was for the first time demonstrated in the embryo with body length of 19.3 mm. This corresponded to the middle of the external gill stage when the morphologically bifurcation of the gill was remarkable. Histologically, the right and left lobes were not completely separated in this stage, and the differentiation was still in such primitive state that yolk granules were observed in epithelial cells constituting the primordial thyroid. In later stages, iodine uptake was remarkably increased.
4) The iodine uptake by the epithelial cells of the primordial thyroid was not uniform, and consequently the blackening was uneven in each section.View full abstractDownload PDF (3373K) -
Shooichi Sugiyama, Akira Taki, Yuko Machida, Norio Furihata1959 Volume 32 Issue 6 Pages 329-340_3
Published: 1959
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSThe present investigations on the ultimobranchial body of the human being elucidated the following:
The ultimobranchial body appears as a part of the so-called caudal pharyngeal complex, dorsal to the thyroid lobe, and separated from the primitive pharynx in the 12 mm CRL stage. From the 18 mm CRL stage, it comes to be completely or incompletely incorporated within the thyroid lobe. It soon becomes an independent body with a slit-like cavity and suggests a forerunner of the cysts.
The epithelial cells surrounding the cavity are stratified in earlier stages and later become partly a kind of reticular tissue with clear cytoplasm. In the reticular tissue a few vesicles are formed. Glycogen is found in the epithelial cells throughout fetal life. Mitotic and degenerative figures are often found in them.
The ultimobranchial body does not contribute to the formation of thyroid tissue, but rather remains relatively often as cysts and yesicles within the thyroid lobe even in late fetal life. The cysts are composed of stratified epithelium and partly single-or double-layered epithelium. These epithelia contain often ciliated cells.
The cysts contain faintly eosinophilic granular substance, unlike the thyroid follicles. Cell detrituses are often contained in them.
A thymic tissue islet appears rarely as a part of the parathyro (IV)-thymo-ultimobranchial complex in the dorsal zone of the thyroid lobe. From this fact, it is supposed that the thythic tissue islet found within the thyroid lobe is of the fourth pharyngeal pouch origin.View full abstractDownload PDF (3924K) -
Tsutomu Inoue, Chikao Kawakami1959 Volume 32 Issue 6 Pages 341-346_1
Published: 1959
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESS1. The cells of Nucl. preopticus in Anguilla japonica, Cyprinus carpio and Carassius auratus were investigated from a comparative cytological view point, using Gomori's C. H. P. and Heidenhain's iron hematoxylin staining methods.
2. With the Gomori's staining method, the cells in Anguilla japonica and in Cyprinus carpio were large and specific polymorphic in shape. The whole cell looked deep blue on account of the fine granules. With the Heidenhain's iron hematoxylin staining method, such fine granules as seen with Gomor is staining method, are not stained, but only the small granules were seen, besides they were fewer than those stained with Gomori's staining. The difference in the stainability of the granules between Gomori's staining and Heidenhai n's iron hematoxylin staining is on account of the weak stainability of the granules for iron hematoxylin, or of the presence of entirely different granules from the granules stained with both staining methods.
3. In Carassius auratus, the size of the cells and the stainability of the cytoplasm are different from the other fish. With Gomori's staining method, the fine granules are few but, on the other hand, small granules which are somewhat larger than those in the other fish are numerous.
4. On the cells of Nucl. preopticus in Anguilla japonica, the small vacuoles were seen surrounded with fine granules in the cytoplasm.View full abstractDownload PDF (1413K)
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