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Volume 70 (1993 - 199･･･
- Issue 6 Pages 247-
- Issue 5 Pages 195-
- Issue 4 Pages 139-
- Issue 2-3 Pages 41-
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Volume 70, Issue 2-3
Displaying 1-12 of 12 articles from this issue
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Tsuyuka KUSHIDA, Haruyuki IIJIMA, Yasukazu NAGATO, Hiroshi KUSHIDA1993 Volume 70 Issue 2-3 Pages 41-49
Published: August 20, 1993
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSExamination of the three-dimensional structure of the Sertoli cell nucleus from mouse testes was performed under a high voltage electron microscope operating at 300 kV. Using an en bloc staining method along with fixation by osmium tetroxide and embedding in a mixture of Quetol 651, NSA and MNA, the structures of the nucleus were stained at a high contrast and satisafactory preservation was achieved, thus allowing their study at a high resolution within thick sections.
Nuclear components could be observed cleary in 2-3μm-thick sections of embedded material. Typical threedimensional configurations of nucleoli and associated bodies were indicated. Thick sections permitted the observation that two or three perinucleolar bodies are usually attached on each side of the nucleoli or form a triangular shape of different sizes of vacuolar structures within the bodies. Stereoscopic observations also revealed overlapping of perinucleolar bodies and nucleoli and suggested the complexity of the components of perinucleolar and intranucleolar chromatin.View full abstractDownload PDF (3266K) -
Setsuko NODA, Tadao MITSUI1993 Volume 70 Issue 2-3 Pages 51-57
Published: August 20, 1993
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSStudies on the localization of vinculin and actin in the embryonic chick duodenum between the 9th and 13th days of incubation were performed by light and electron microscopy. In the light microscopic studies, vinculin and actin were localized by immuno-fluorescent double staining with anti-vinculin and rhodamine phalloidin for actin. In the electron microscopic studies, the immunocytochemical distribution of vinculin was examined on Lowicryl K4M thin sections with anti-vinculin.
Vinculin was prominent near or adjacent to the apical inner membrane of epithelial cells of the previllous ridges in all stages, often located near cell junctions including tight and adherent junctions and the top of microvilli, and weakly in the cytoplasm.
Our findings suggested the possible interaction between actin and vinculin in differentiation on the apical side of epithelial cells including the formation of microvilli or terminal webs.View full abstractDownload PDF (3163K) -
Keiji TAKAMI, Akira SAKURAI, Fumio MUKAI, Takashi YAMADORI1993 Volume 70 Issue 2-3 Pages 59-61
Published: August 20, 1993
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSBy means of a rubbed copy method using India ink and an image-analysis system (IBAS 2000), the areas of 106left-right plana temporalia were compared using fixed brains of both sexes. The left planum was of a larger size than the right planum in two-thirds of the cases. This result was confirmed statistically by the least-squares analysis of variance method (p<0.01).View full abstractDownload PDF (1310K) -
Kuniaki TOYOSHIMA, Yuji SETA, Akitatsu SHIMAMURA1993 Volume 70 Issue 2-3 Pages 63-67
Published: August 20, 1993
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSElectron microscopic examination of the lingual mucosa of the turtle, Clemmys japonica, revealed the occurrence of Merkel cells that shared many morphological features with Merkel ceHs in other vertebrates. Merkel cells were located exclusively in the basal portion of the epithelium near the taste buds. We also found occasional Merkel cells devoid of nerve contact. Nerve terminals approaching these non-innervated Merkel cells were occasionally found in the connective tissue just beneath these cells.View full abstractDownload PDF (2424K) -
Komei HATTORI, Wakako OKAMOTO1993 Volume 70 Issue 2-3 Pages 69-77
Published: August 20, 1993
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSIt is well known that caliper readings decline after the initial application of the caliper to the skinfold (dynamic compressibility). In addition to this compressibility, there is also a variability of skinfold compressibility at different body sites (static compressibility). To investigate this static variability, a comparison was made between skinfold thickness obtained from using caliper and thickness derived from an ultrasound image (B scan-mode) at sixteen skinfold sites of 96non-athletic students in good health (45 men and 41 momen). The skinfold compressibility is defined as: (uncompressed value-compressed value)×100/uncompresssed value. The ptterns created by the by of the plots of skinfold compressibility across the sixteen body sites were similar for both sexes although the inter-site variability is quite large (significant at 0.01 level on ANOVA). Women tend to have greater skinfold compression in the trunk area and less in the limbs as compared with men. This sex difference may be caused by the sex differences of skin thickness and skin tension (subcutaneous space pressure). The marked inter-site variability in skinfold compressibility suggests the need for caution in estimates of fat mass using skinfold calipers.View full abstractDownload PDF (1944K) -
Takashi SATAKE, Kayoko SASAKI, Eisaku KANAZAWA, Tadashi OZAKI1993 Volume 70 Issue 2-3 Pages 79-85
Published: August 20, 1993
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSTeeth extracted from Japanese male cadavers were analyzed from the morphogenetic point of view. Variables were buccolingual crown diameter, mesiodistal crown diameter, crown height, root length and total length. Each dimension was analyzed separately by means of principal component analysis with varimax rotation.
Components extracted from crown dimensions and total length showed 3 or 4 of 5 underlying components for rnorphogenetic field, anterior group, molar, premolar, canine and incisor. However, for crown height and root length, the components were less distinct.View full abstractDownload PDF (1915K) -
Seiji NORIYASU, Takao SUZUKI, Eiichi SATO, Tsuyoshi SATO1993 Volume 70 Issue 2-3 Pages 87-90
Published: August 20, 1993
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSThe flattend band reflecting from the fibrous capsule of the hip joint to the head and neck of the femur has been firstly described as “the retinacula” by Weitbrecht in the middle of eighteenth century. In the light of present clinical aspect, the retinacula has been noticed with renewed interests because the nutrient arteries running through this retinacula are one important criterion for orthopedic reduction in the cases of femoral neck fractures.
The purpose of the present study is to investigate the morphology and occurrence of this retinacula from anatomical points of view using cadavers. The results show that there are two types of retinacula: a complete band shape and posterior membranous shape. The frequency of retinacula, totaled 94.8 percent in males and 92.5 percent in females. Therefore, the presence and condition of the retinacula should be carefully examined for pre-operative status in cases of femoral neck fractures.View full abstractDownload PDF (1347K) -
Teruo UETAKE, Fumio OHTSUKI1993 Volume 70 Issue 2-3 Pages 91-103
Published: August 20, 1993
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSA separate moire photograph of 380 men's back was taken. Using a micro-computer the sagittal configuration of the spinal curvature line was reconstructed based on the moire fringe on the back. Then the sagittal configuration of this line was compared among groups according to their sports: rugby, soccer, kendo, swimming, yachting, four track and field events (sprinting, distance running, jumping, and throwing), body-building as well as non-athletic men.
Distance runners and sprinters had a greater degree of thoracic kyphosis and greater degree of lu mbar lordosis, while non-athletes had a smaller degree of both kyphosis and lordosis. Swimmers, bodybuilders, rugby and soccer players had partial lordosis. The degree of lumbar lordosis of swimmers and bodybuilders was less than average while the degree of thoracic kyphosis was ordinary and the degree of thoracic kyphosis of rugby and soccer players was less than average while the degree of lumbar lordosis was ordinary.View full abstractDownload PDF (4024K) -
Sotaro IWAMOTO, Masayoshi KONISHI1993 Volume 70 Issue 2-3 Pages 105-113
Published: August 20, 1993
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSTen diaphysis specimens of femurs and humeri from a total of 4 bodies, three excavated from 14th-15th century graves. (Muromachi period) and one from a tomb of the 7th century (period of ancient burial mounds), were examined using histomorphological methods to estimate their ages. The estimation formula was established using humeri (72 specimen)and femurs (71 specimen) from Japanese aged between 26 and 75 years. The formula was prepared based on a multiple regression analysis of the following 3 items: number of osteons/mm2, mean diameter of osteons, and mean diameter of the Haversian canals. Four estimation formulas were established based on the humeri from all subjects, the femurs from all subjects, the humeri from subjects between 26 and 55, and the femurs from subjects between 26 and 53, respectively. Since the age of the excavated human bones was unknown, we used morphological age estimates (e.g.attrition of teeth, cranial suture closure and similar items) for comparison. Histological and visual estimates corresponded in 2 of the 10 cases, but the histological age estimates were higher than the visual estimates in the other cases. In 4 of the 10 cases, age estimates produced by the formulas for younger ages were lower than those by the formulas for all age groups. Thus the formulas for younger ages were not so successful.View full abstractDownload PDF (2796K) -
Yutaka TAKAHASHI, Kunihiko KIMURA1993 Volume 70 Issue 2-3 Pages 115-117
Published: August 20, 1993
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSThe annular plica (plica anularis) of the cervical esophagus contained mucous glands in dogs. Specimens, impregnated with the silver nitrate, were examined under a dissecting microscope. The internal branch of the superior laryngeal nerve lay fibers in close contact with the terminal portion and excretory duct of glands.View full abstractDownload PDF (1176K) -
Shozo TAKAI, Ph. D.1993 Volume 70 Issue 2-3 Pages 119-126
Published: August 20, 1993
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSThis report describes the velocity of the Tanner-Whitehouse 2 skeletal maturity for some 6,300 Japanese children from Ogi Growth Study 1979-1988. The cubic B-spline function fitted the velocities for the Carpal, RUS and 20-bone scores on the smoothed velocity curves. The maturity velocity curves showed single peak around the adolescent period exclusive of a bimodal curve for girLs' RUS velocity. Its first peak appeared at 10.9 years and the second,13.9 years. Just after the first peak their height reached the maximal velocity (11.0 years). The RUS velocity curve for the boys showed the peak maturity velocity at 15.6 years. Their height attained the peak velocity (at 12.9 years) before the RUS maturity did. Although the Japanese children matured earlier for the RUS maturity than Europeans, it was comparable to that of other Asians. The study also showed that the skeletal maturation affected the height growth during the duration of height spurt for the boys, but only during the accelerating period for the girls.View full abstractDownload PDF (2334K) -
Fumio OHTSUK, Teruo UETAKE, Kazutaka ADACHI, P. E. LESTREL, Kazuro HAN ...1993 Volume 70 Issue 2-3 Pages 127-139
Published: August 20, 1993
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSPhotographs (norma occipitalis) of Japanese adult skulls (n=171) were mathematically described with Fourier analysis to assess shape changes over time. The materials used were adult male skulls excavated from the Kanto District and covered four age-periods; Jomon (2000-1000 BC). Kamakura (14C. AD), Muromachi (15C. AD). and Edo (18C. AD).
Mean raw data values, containing both size and shape information of each vector, were compared for the four ageperiods. Statistically significant differences among the four age-periods were found using an ANOVA. The form of the Jomon skulls displayed the most difference among the four groups. This trend was especially evident at the parietal margin.
Fourier analysis was subsequently undertaken to detect the presence of secular changes in skull form after standardization for size. Once the effect of size was removed, the occipital shape of the Jomon skulls was found to be essentially similar to those of the more recent age-periods.
Thus, secular shape changes in the Japanese skulls (occipital view) could not be detected here, although size differences were present.View full abstractDownload PDF (2976K)
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