The Tohoku Journal of Experimental Medicine
Online ISSN : 1349-3329
Print ISSN : 0040-8727
ISSN-L : 0040-8727
Volume 56, Issue 3
Displaying 1-14 of 14 articles from this issue
  • Hisao Sato
    1952 Volume 56 Issue 3 Pages 209-213
    Published: August 25, 1952
    Released on J-STAGE: November 28, 2008
    JOURNAL FREE ACCESS
    1. By means of Cardiotachograph the respiratory arrhythmias ofhealthy men were observed repeatedly during a period of about one year, especial attention being paid to its relation to the cardiac rate.
    2. The last mentioned relation remained to be characteristic to each individual throughout the entire course of the experimental period.
    3. No definite tendency to seasonal variations in the respiratory arrhythmia, common to all individuals, could be ascertained.
    Part of the expenses of this work was defrayed by a Grant from the Foundation for Promotion of Scientific Research of the Education Department of Japan. K. Matsuda.
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  • Toshiaki Ebina, Yukihiro Takase, Yoshio Inasawa, Koichi Horie
    1952 Volume 56 Issue 3 Pages 214
    Published: August 25, 1952
    Released on J-STAGE: November 28, 2008
    JOURNAL FREE ACCESS
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  • Koiti Motokawa, Kituya Iwama, Mituru Ebe
    1952 Volume 56 Issue 3 Pages 215-222
    Published: August 25, 1952
    Released on J-STAGE: November 28, 2008
    JOURNAL FREE ACCESS
    The excitatory action of alternating currents upon the color receptors of cats was investigated.
    1. Following a brief illumination with white light, the electrical excitability of the dark-adapted eye was measured at varying intervals after illumination, taking spike potentials froth the .retina in response to a single constant current pulse of 0.5 sec. in duration as index. The excitability showed a maximum at about 2 sec. in most cases. When the eye was exposed to yellow light and then to the white light the excitability curve was found to be higher than that for the white light alone and to have a maximum at about 3 sec. just like a curve for blue light. This is the phenomenon of retinal color induction which represents a physiological basis of successive color contrast.
    2. It was found that an excitability curve of the same height and shape as that for the successive stimuli, yellow and white, could be obtained when an alternating current of 49 c.p.s. was passed through the head for 0.5 sec. as a substitute for the yellow light used in the above experiment. Thus it was proved that an A. C. of 49 c.p.s. is equivalent to yellow light.
    3. In a similar manner it was shown that A. C. of 30-35 c.p.s. are equivalent to blue light, A. C. of 37-42 c.p.s. to green light, A. C. of 47-55 c.p.s. to yellow light and A. C. of frequencies higher than 65 c.p.s. to red light.
    4. This result was further confirmed by another series of experiment based on the fact that the retinal induction caused by any colored light was extinguished or neutralized by the action of an A. C. of definite frequency in the same manner as by colored light complementary to the inducing one.
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  • Yuji Sato
    1952 Volume 56 Issue 3 Pages 223-227
    Published: August 25, 1952
    Released on J-STAGE: November 28, 2008
    JOURNAL FREE ACCESS
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  • Akira Sakamoto, Sakae Suzuki, Hideko Kato, Takashi Ariyoshi
    1952 Volume 56 Issue 3 Pages 229-231
    Published: August 25, 1952
    Released on J-STAGE: November 28, 2008
    JOURNAL FREE ACCESS
    A new virus was demonstrated by means of the urine or blood taken from patients with typical acute glomerulonephritis. The infection is transmissible to guinea pigs in series with fatal consequence. Some of the properties of the agent and the essential pathologic findings of animals infected are presented.
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  • Koichi Tsuda
    1952 Volume 56 Issue 3 Pages 233-243
    Published: August 25, 1952
    Released on J-STAGE: November 28, 2008
    JOURNAL FREE ACCESS
    The vertical duct of the ductulus lacrimalis has a non-cornificated flattened stratified epithelium like the margo palpebralis, which is, however, about twice as thick as the epithelium of the latter. The subepithelial fibrous tissue shows for the epithelium scarcely formation of papillae. This fact indicates that this mucous membrane is not so favoured with sensory nerve fibres.
    The transversal duct of the ductulus shows in the lamina propria the formation of lymphatic tissue, especially near the opening into the lacrimal sac remarkably. Next, the changingg of. the epithelium is noticeable. That is in the stratified flattened epithelium appears the stratified columnal epithelium sporadically. Besides, near the lacrimal sac we can find the remarkably thin columnal epithelium represented by only 2 or 3 layers of epithelial cells, being penetrated by many of lymphocytes. Thirdly comes the bud- or fungi-formed thickning of the mucous membrane strongly projecting into the lumen of-the duct, filled with the well-developed lymphatic tissue and having the epithelium of thin stratified columnal nature. This formation might be thought to exist in order to let the lymphocytes display their duty in full to catch the harmful objects.
    The weak nerve plexus in tela submucosa is composed of many medullary sensory and a few non-medullated vegetative fibres. The latter finally become to the terminalreticulum and distribute widely in the subepithelial tissue, while the former terminate mainly in lamina propria with various terminations, which are divided roughly into the unspecific or non-contorted and the specific or contorted terminations.
    The sensory fibres of the non-contorted terminations are mostly composed of medium thick fibres, but rarely of strong fibres, show in general the equality of thickness and terminate sharply or dully direct beneath the epithelium or in direct contact with the basis of the epithelium. The terminations are according to their complexity subdivided into the unbranched and the branched terminations, furthermore the latter into the simple and the complicated forms.
    The contorted terminations. are seen only in ductulus lacrimalis and margo palpebralis (Seto).9) Their sensory fibres are mostly strong medullated fibres, being often accompanied by small medullated fibres, represent scarcely the variety of thickness and pass into irregular looping terminal formations containing special nuclei here and there. The terminations are further divided into the simple and the complicated forms according to their scale. The former are mostly found in the vertical duct, the latter chiefly in the transversal duct.
    Some of the specific terminations are represented as the simple glomerular formations, though a few. Besides, as a kind of the specific terminations sometimes exist the unformed terminations composed of strong fibres rich in variety of thickness and showing not so evident winding course, too.
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  • CLVII. On the Carbohydrate in Casein
    Hajime Masamune, Masahiro Maki
    1952 Volume 56 Issue 3 Pages 245-251
    Published: August 25, 1952
    Released on J-STAGE: November 28, 2008
    JOURNAL FREE ACCESS
    The carbohydrate of casein was separated and investigated regarding composition and else.
    This work was aided by a grant, given from the Education Department through the Grant Committee of the Science Council. H. M.
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  • Yuii Sato
    1952 Volume 56 Issue 3 Pages 253-257
    Published: August 25, 1952
    Released on J-STAGE: November 28, 2008
    JOURNAL FREE ACCESS
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  • Studies on the Nutrition of Children in Hirosaki Area. 12th Report
    Shigeho Wada, Yuji Sato
    1952 Volume 56 Issue 3 Pages 259-268
    Published: August 25, 1952
    Released on J-STAGE: November 28, 2008
    JOURNAL FREE ACCESS
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  • CLVIII. On the Placental Substances Giving the Skin Reaction of Cancer and Pregnancy
    Hajime Masamune, Masayosi Ogawa
    1952 Volume 56 Issue 3 Pages 269-273
    Published: August 25, 1952
    Released on J-STAGE: November 28, 2008
    JOURNAL FREE ACCESS
    A carbohydrate preparation which had the potency of giving cancer skin reaction was separated from placentae. And its chemical and physical properties were investigated. Electrophoresis exhibited two boundaries. The sugars involved were glucosamine, chondrosamine, mannose, a hexuronic acid and L-fucose. By these findings together with Masamune's claim was suggested a mixture of two kinds of hexosamine-containing polysaccharide, one a hexuronic acid-containing and the other a hexuronic acid non-containing.
    The Education Department gave a grant through the Grant Committee for Scientific Researches in aid to us. H. Masamune.
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  • Takashi Kishine, Kietsu Igarashi, Hideo Tsukamoto, Ko Suto, Yoshimichi ...
    1952 Volume 56 Issue 3 Pages 275-282
    Published: August 25, 1952
    Released on J-STAGE: November 28, 2008
    JOURNAL FREE ACCESS
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  • Yasaburo Oike, Jun-ichi Abo, Mamoru Sato, Masayo Suzuki, Seitoku Mizun ...
    1952 Volume 56 Issue 3 Pages 283-289
    Published: August 25, 1952
    Released on J-STAGE: November 28, 2008
    JOURNAL FREE ACCESS
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  • Yasuhiro Arakawa, Toshihiko Oikawa
    1952 Volume 56 Issue 3 Pages 291-297
    Published: August 25, 1952
    Released on J-STAGE: November 28, 2008
    JOURNAL FREE ACCESS
    The magnitudes of three color processes R, G and B at the fovea were measured by means of Motokawa's method, which consisted of measuring the electrical excitability of the eye after a brief illumination with monochromatic light of various wave-lengths.
    Color diagrams were constructed from the measured magnitudes of R, G and B. They were found very similar to the usual chromaticity diagram constructed from color mixing data. So they can be used for specification of colors. The fact that such a color diagram can be constructed from three physiological quantities suggests that the normal foveal vision is essentially trichromatic. The limitation of the validity of the trichromatic principle was further discussed on the basis of physiological data.
    We wish to thank Prof. K. Motokawa for his good advice and cordial guidance.
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  • XI. croup A Lipoid of Human Pancreas First Paper
    Masahiro Tokura
    1952 Volume 56 Issue 3 Pages 299-306
    Published: August 25, 1952
    Released on J-STAGE: November 28, 2008
    JOURNAL FREE ACCESS
    A method of preparing the Group A lipoid of human pancreas has been devised. A rough investigation was also made regarding the composition and physical properties of the product.
    The work was aided by a grant, given from the Education Departmel't through the Grant Committee for Scientific Researches. H. Masamune.
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