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Volume 49 (1972 - 197･･･
- Issue 6 Pages 391-
- Issue 5 Pages 271-
- Issue 4 Pages 175-
- Issue 2-3 Pages 75-
- Issue 1 Pages 1-
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Volume 49, Issue 1
Displaying 1-6 of 6 articles from this issue
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Helmut F. Sinzinger, Walter Feigl1972 Volume 49 Issue 1 Pages 1-11
Published: 1972
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSOn 40 human livers we injected the arteries with Plastoid or Latex and demonstrated them by corrosion or preparation. In the so prepared organs we found all the 4 possible kinds of anastomoses. Eleven cases had big anastomoses of the hilus,40 cases had anasto- moses connecting the parenchyma with the capsule,36 cases had connections between the parenchyma and the cystic artery and 33 cases showed anastomoses between the segments and subsegments. Then the report shows the functional importance and the possible physiologic function.View full abstractDownload PDF (2291K) -
Masatake Imai, Michi-ko Oikawa1972 Volume 49 Issue 1 Pages 13-21
Published: 1972
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSSeveral canaliculi are observed in the stroma of the cornea of the bullfrog, rat, rabbit, cat, dog, swine, and Japanese monkey. Those canaliculi have an endothelial lining and they are externally surrounded by the latticed fibers. The borders of the endothelial cells and the latticed fibers appear with silver impregnation. The corneal spaces and their processes open into the canaliculi here and there. The authors consider that those canaliculi are the lymphatic vessels which gather the tissue fluid contained in the corneal spaces in the stroma. The canaliculi which were regarded as the lymphatic vessels by Katayama were nothing but expanded corneal spaces and their processes. Because, those canaliculi had no endothelial lining.View full abstractDownload PDF (2371K) -
Bin Yamaguchi1972 Volume 49 Issue 1 Pages 23-35
Published: 1972
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSAn attempt was made to devise a sequent classification scheme for the widely variable bipartient tendencies of the articular surface of the trochlear notch. The proposed sequence of seven different types is shown in Fig.1.
The validity of the morphological sequence of these types ranging from the non-bipartient to the completely bipartient was confirmed by examining the type combinations between the sides of the same individual skeletons.
Possible sex and age dependences of the bipartient tendency were tested by two statistical analyses, revealing significant sex and age differences: stronger tendency toward bipartition in the male than in the female, and also in the higher age than in the younger.
The test of the association between the bipartitional tendency of the trochlear notch and the general arthritic tendency of the entire skeleton confirmed a significant relationship between these two phenomena. This suggests a more direct association of the bipartient tendency with the general senility of the bone and joint rather than with the chronological age of individual. Much higher incidences of bipartite types in the Ainu and the Iroquoian ulnae than in the modern Japanese ulnae may be understood by such interpretation.
In addition to these statistical analyses on the macerated or excavated materials, a few fresh specimens were examined histologically. The results also suggested a successive change from normal cartilaginous demarcation, through the degeneration of the cartilage and the formation of a bony tubercle, to the entire replacement of the cartilage in the demarcating portion by bone tissue in extreme senility.
From anthropological point of view, the above results seem to devaluate the simple inter-populational comparison of the incidences of this trait without consideration of the age and sex compositions of the samples to be compared. However, if due considerations are paid to the age and sex factors, this trait can be a profitable subject of paleopathological study of skeletal populations.View full abstractDownload PDF (2904K) -
Tadao Kirino, Tetuo Nozue, K. Goto1972 Volume 49 Issue 1 Pages 37-45
Published: 1972
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESS(1) The nuclei of the spindle cells in the enamel organ and certain irregular-shaped mesenclaymal cells in the dental papilla (including the future dental papilla) showed the following reaction. Except for the nucleolus they did not react with the Naphthol Yellow S reaction and Fast Green FCF reaction, or they showed a more marked reaction than the nuclei of the other tooth germical cells with the above method. They were negative with the DMAB reaction and the Millon reaction.
(2) The above results suggest nucleoprotein-lysis or concentration of the nucleoprotein. These cells seem to be degenerated or degenerating cells.
(3) The nucleoprotein of the tooth germinal cells other than the spindle cells and certain irregular-shaped mesenchymal cells is thought to be composed not chiefly of the histon, but of the protamin.
(4) The significance of these cells remains obscure, and further experimental study on the origin of these cells will throw light on the morphogenesis of the tooth.View full abstractDownload PDF (1824K) -
Takaaki Fujii, Hideo Nishimura1972 Volume 49 Issue 1 Pages 47-53
Published: 1972
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSThe pregnant female rats were treated i. p. with a single dose of adenine at 300 or 350 mg/kg once during major organogenesis of the embryo. Near-term fetuses were examined for external, internal and skeletal malformations and the followings were resulted.
(1) Fetal resorption was increased when 300 mg/kg of the compound was treated on day 9 or 14 of gestation.
(2) Body weight of live fetuses was lowered in all the groups treated at 300 mg/kg.
(3) The fetuses with digital malformations were found with significantly high frequency in group treated at 300 mg/kg on day 14 of gestation.
(4) Significantly high frequency of the fetuses with internal malformations was resulted by treatment at 300 mg/kg on day 8,9,10,12 or 13 of gestation.
(5) Significantly high frequency of skeletal malformations was shown in all the treated groups except group treated on day 15 of gestation.
(6) With such indices as fetal resorption, body weight, external, internal and skeletal malformations, a dose effect relation was clearly shown in groups treated on day 10 or 14 of gestation.
(7) Less embryopathic effects of adenine was shown in the rats compared to the mice treated with its lower dosage.View full abstractDownload PDF (900K) -
VIII. Intranuclear Canaliculus Complex in Ehrlich Ascites Tumor Cells and its Functional SignificanceRiichi Sugihara, Gonpachiro Yasuzumi1972 Volume 49 Issue 1 Pages 55-63
Published: 1972
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSThe term“ intranuclear canaliculus complex” was proposed for a canalicular formation which was provided with a beaded structure running longitudinally through the core of the canaliculus in the preprophase of Ehrlich ascites tumor cell nuclei. Electron microscope autoradiography demonstrated that DNA synthesis in the S period of these cells occurs related with the intranuclear canaliculus complex.View full abstractDownload PDF (2657K)
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