巻号一覧
70 巻, 6 号
選択された号の論文の11件中1～11を表示しています
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K. H. SIT, B. H. BAY, K. P. WONG1994 年 70 巻 6 号 p. 247-253
発行日: 1994/03/22
公開日: 2012/09/24
ジャーナル フリーThe home of all intermediary metabolism and the cytoskeleton, viz. the cytosol, appears inaccessible to large macromolecules in the living state without severe perturbations. ATP-induced cytosolic penetration due to poration which allow passage of<1000 mol. wt. particles have been cited. We report here that at similar milli-molar dosage levels of ATP, internalization of 2,000,000 mol. wt dextran particles as well as 0.92 μm and 2.17 μm latex beads could be demonstmted. At ultrastructural level, the internalized beads were seen distributed in 2 sites on the cytoplasm of the cell, viz. (a) inside vacuoles and (b) outside vacuoles, in the cytosol. The vacuolar distribution suggests endocytic entry, while the cytosolic distribution suggests a cellular sorting process where the boundary of the bead is processed or sorted out of the membranerecycling pathway.抄録全体を表示PDF形式でダウンロード (3370K) -
Rumio TAGA, Djair San MARTINI, Antonio SESSO1994 年 70 巻 6 号 p. 255-260
発行日: 1994/03/22
公開日: 2012/09/24
ジャーナル フリーThe evolution of the percentage of radioactive mitosis aftera single thymidine-H3 injection, was determinated for the various cell categories of the parotid, submandibular and sublingual glands of rats at 5th and 15th day of postnatal age. Estimates of the lengths of the S and the G2+M/2 phases of the cell cycle were thus obtained, and averaged 9.8 and 2.7hours, respectively, with extreme values of 9.3-11.2 and 1.6-3.2 hours.抄録全体を表示PDF形式でダウンロード (1501K) -
Shintaro KONDO, Hajime HANAMURA, Eizo WAKATSUKI1994 年 70 巻 6 号 p. 261-265
発行日: 1994/03/22
公開日: 2012/09/24
ジャーナル フリーThe crown dimensions of the maxillary molars in Tupaia glis were measured, and the most common molar size sequence was M1>M2>M3. The M2 and M3 molars were smaller than the M1 in the mesiodistal crown diameters. With regard to the buccolingual diameters, the distal part of M1 and mesial part of M2 were relatively larger and less variable in size. This stable area corresponded to the inflection point of the maxillary arch curve. These results could be explained from a functional morphological standpoint.抄録全体を表示PDF形式でダウンロード (1731K) -
Shintaro KONDO, Hajime HANAMURA, Eizo WAKATSUKI1994 年 70 巻 6 号 p. 267-272
発行日: 1994/03/22
公開日: 2012/09/24
ジャーナル フリーThe crown dimensions of the mandibular molars in Tupaia glis were measured. All the mean values of crown diameters and areas were larger for the M1 molar than for the M2 and M3. The last two molars were more reduced in the talonid component than in the trigonid compared to the M1, and were more reduced in the buccolingual than in the mesiodistal direction. The most common molar size sequence (MSS) was M1>M2>M3, and this pattern was more frequently observed in the talonid component than in the trigonid. In the canonical discriminant analysis, all the cases of the M3 were discriminated correctly, but some cases of the first two molars were confused with each other. The molars size of the mandible was closely related to that of the maxilla.抄録全体を表示PDF形式でダウンロード (1720K) -
Iwao SATO, Kazuyuki SHIMADA, Gen MURAKAMI, Narumi SAGARA, Tooru SATO1994 年 70 巻 6 号 p. 273-284
発行日: 1994/03/22
公開日: 2012/09/24
ジャーナル フリーWe analyzed the masticatory Muscles (masseter, temporal, medial pterygoid and lateral pterygoid muscles) of Bovidae and Cervidae (Artiodactyla) for the histochemical characteristics of their fiber types. Analysis of muscle fiber types in the present study was based on the staining reaction for SDH, Sudan black B, α-GPDH, and myosin-A TPase after alkaline preincubations. Histochemical properties were found to contribute to masticatory function, including a slow-twitch fatigue resistant activity derived from the high percentage of red fibers, in spite of the differences in the distributions of fiber types in three portions (superficial, medial and profound portions) of each masticatory muscle.
These results indicate a correlation between the histochemical profiles of individual masticatory muscles in these species and their functions during jaw movements. Histochemical profiles of fiber types in masticatory抄録全体を表示PDF形式でダウンロード (3737K) -
A. YALIN, S. CAVDAR, F. ERCAN1994 年 70 巻 6 号 p. 285-293
発行日: 1994/03/22
公開日: 2012/09/24
ジャーナル フリーThe arterial supply of the long flexor tendon of the index and ring fingers were studied morphologically on 36cadaver hands.
Our studies, showed that the long flexor tendons were supplied by two main sources. Primarily by small arteries which ran in the vinculum longum and vinculum brevis and reached the dorsal surface of the tendon. Also by small intrinsic longitudinal vessels which ran parallel to the collagenous fibers of the tendon and extended from the muscular attachment of the long flexor tendons. No morphological difference on the vascularization of the index and ring fingers were observed.抄録全体を表示PDF形式でダウンロード (2513K) -
Cem KOPUZ, Suat TURGUT, Selami YAVUZ, Sezgin ILGI1994 年 70 巻 6 号 p. 295-299
発行日: 1994/03/22
公開日: 2012/09/24
ジャーナル フリーSummary: The purpose of the present study is to reduce the postoperative morbidity related to facial paralysis during parotid surgery and to layout the different characteristics related to intraparotideal distribution and anatomoses of the facial nerve in our community. We also report new variations in the facial nerve branchings that have not been previously published.
In this paper, facial nerves from 48 cadavers and 2 patients of which 45(90%) were males and 5(10%) were females; 26(52%) being right and 24(48%) being left facial nerves were put forward. Their photographs were taken and the diagrams of intraparotideal distributions of each facial nerve were drawn. The intraparotideal configuration of the facial nerve was evaluated in 5 types. Twenty-four% of the facial nerves had no anastomoses (Type I); 12% had a ring-like shape anastomosis between the buccal and the zygomatic branches (Type II); 14% anastomoses were between the buccal and the other branches in a ring-like shape (Type III); 38% of the facial nerves had multiple complex anastomoses and were named as multiple loops (Type IV); 12% had two main trunks (Type V).
Of the bilateral cadaver dissections, the facial nerve distribution in 9(47.3%) were bilaterally the same and in 10(52.7%) main trunks were different. A facial nerve trifurcation composed of two main trunks were also established. There were no statistical differences between branching of the facial nerves in the right and left side of the faces. It was shown that there were primary nerve anastomoses between the main trunk and the lower trunk in 4 cadavers (8%); also in 1(2%) cadaver they were between the main and lower trunk and between the upper and lower trunk.
This study shows that there are racial differences in the branching of the facial nerve, and it is important to remind the surgeon of the surprises related to the topographic anatomy during the facial surgery.抄録全体を表示PDF形式でダウンロード (1675K) -
Takashi UEDA, Shigeki KAWAMURA, Osamu HATTORI, Osamu FUJIMORI1994 年 70 巻 6 号 p. 301-311
発行日: 1994/03/22
公開日: 2012/09/24
ジャーナル フリーThree dual staining methods were established for the histochemical detection of saccharide residues and acidic groupings of carbohydrates in light microscopy. The first method consisted of combined lectin-gold silver (LT-G-S) and alcian blue (AB) pH 1.0 techniques, whereas the second staining technique was composed of LT-G-S and AB pH 2.5procedures. These two techniques were found to color saccharide residues and acidic groupings of carbohydrates in black and blue shades respectively, which exhibited a high contrast between the both. The third methods, LT1-G-S-LT2-PO-DAB techniques, yielded reaction products of blackish and yellowish brown shades, which represented the localizations of two different saccharide residues in one and the same section. According to the results of the experimental and control procedures, the present three dual staining methods are believed to be reliable, reproducible and unusually useful for light microscopic histochemical studies on acidic and non-acidic carbohydrates.抄録全体を表示PDF形式でダウンロード (4562K) -
Gen MURAKAMI, Souhei ENDO, Chen DONG, Hajime HOSHI, Hiroshi TOMITA1994 年 70 巻 6 号 p. 313-317
発行日: 1994/03/22
公開日: 2012/09/24
ジャーナル フリーMinute dissection was performed bilaterally on 178 human adult cadavers (356 sides) in order to investigate the collateral lymphatic configurations of the internal jugular node chain. The superior and inferior collateral pathways identified based on the topographical anatomy of the large collecting vessels in the neck region. The superior collateral pathway (in 99 of 208 sides,47.6%) consisted of a node chain, lying on the common carotid artery or along the medial edge of the internal jugular vein, connecting the submandibular lymphatics to the jugulo-omohyoid node (JO). In contrast, the inferior collateral pathway (in 63 of 356 sides,17.7%) consisted of a single large collecting vessel, lying immediately superficial to the inferior deep cervical nodes, and which directly connected the JO to the venous angle region. A short cervical lymphatic trunk arising from the inferior deep cervical nodes, was also observed in the inferior collateral pathway. The JO seemed to be located at a critical position, where it connected the two collateral pathways. These results are discussed in relation to the fascial arrangement and development of the lymphatics in the cervical region.抄録全体を表示PDF形式でダウンロード (1916K) -
Gen MURAKAMI, Kenji OHTSUKA, Iwao SATO, Hiroshi MORIYAMA, Kazuyuki SHI ...1994 年 70 巻 6 号 p. 319-328
発行日: 1994/03/22
公開日: 2012/09/24
ジャーナル フリーThe superior alveolar nerves in human adults were investigated macroscopically using whole-mount silver impregnation, paying special attention to their topographical relationship and distribution to the mucous membrane of the maxillary sinus. In addition, the fiber composition of the alveolar nerves was analysed in order to estimate their contribution to teeth innervation.
The posterior superior alveolar nerve (PSAN) ran through canaliculi in the lateral wall of the sinus (23 of 37 cases,62.2%) or under the mucous membrane of the sinus (14 of 37 cases,37.8%). Moreover, the PSAN gave off many fine twigs to make complex plexus under the mucous membrane of the sinus before joining the superior dental plexus. The plexus of the maxillary sinus was separated from the superior dental plexus by the bony wall of the sinus. After the above gross observations, the perimeter compositions of myelinated fibers of the plexus, PSAN and the anterior alveolar nerve were analysed in the same specimen. The plexus was composed of myelinated fibers of less than 27μm in circumference perimeter (mean; 14.3μm) and numerous unmyelinated fibers. The fiber composition suggested that few fibers in the plexus of the maxillary sinus contribute to the formation of the superior dental plexus. The superior dental plexus, innervating the upper teeth, was located in the thick alveolar process of the maxilla, and not on the maxillary sinus wall. The clinical importance of these results was discussed in relation to nerve injury during antrostomy of the maxillary sinus.抄録全体を表示PDF形式でダウンロード (3630K) -
Masuo AIKAWA, Atsumi SHIMOZAWA1994 年 70 巻 6 号 p. 329-333
発行日: 1994/03/22
公開日: 2012/09/24
ジャーナル フリーTo elucidate the relation between the caliber of myelinated nerve fibers (MNFs) and motor unit size (i.e., number of muscle fibers per motor unit), motor unit size was measured for the mouse m. stylohyoideus, innervated predominantly by extra large MNFs, and compared with that of the mouse m. stapedius, innervated predominantly by large MNFs. All muscle fibers and MNFs were counted morphologically, and mean motor unit size was calculated for each muscle. The results showod that the average of 12 mean motor unit sizes for the m. stylohyoideus (35.8±8.2), innervated predominantly by extra large MNFs, was greater than that for them. stapedius (6.5±1.3), innervated predominantly by large MNFs.抄録全体を表示PDF形式でダウンロード (1688K)
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