Shika Kiso Igakkai zasshi = Japanese journal of oral biology最新文献

[Effects of oxygen on growth of Streptococcus mutans]. 氧对变形链球菌生长的影响

Shika Kiso Igakkai zasshi = Japanese journal of oral biology Pub Date : 1990-02-01 DOI: 10.2330/joralbiosci1965.32.10

T Shimamoto, K Fukui, T Kodama, T Shimono, H Ohta, K Kato

{"title":"[Effects of oxygen on growth of Streptococcus mutans].","authors":"T Shimamoto, K Fukui, T Kodama, T Shimono, H Ohta, K Kato","doi":"10.2330/joralbiosci1965.32.10","DOIUrl":"https://doi.org/10.2330/joralbiosci1965.32.10","url":null,"abstract":"Effects of oxygen on growth of Streptococcus mutans Ingbritt (serotype c) were examined. The strain could be passaged under aerobic conditions at 37 degrees C in a peptone/yeast extract medium containing 0.2% glucose. Although the growth rate was slightly retarded under aerobic conditions (the doubling time, 60 min; 45 min under anaerobic conditions), the increment of cellular dry weight change was 35 g per mole of glucose under both conditions. To investigate such aerotolerance in growth as indicated by these results, oxygen metabolism was compared between aerobically and anaerobically grown cells. No difference was observed in the apparent rate of superoxide production or superoxide dismutation. However, aerobically grown cells showed a higher activity of hydrogen peroxide reduction with glucose as substrate and accumulated a lower level of hydrogen peroxide when incubated with glucose under aerobic conditions. In addition, hydrogen peroxide added to the medium was less inhibitory to anaerobic growth when aerobic cells were used as the inoculum. These results indicate that aerotolerance of S. mutans Ingbritt can be ascribed at least in part to its hydrogen peroxide reducing activity which is elevated under aerobic conditions.","PeriodicalId":21847,"journal":{"name":"Shika Kiso Igakkai zasshi = Japanese journal of oral biology","volume":"32 1","pages":"10-9"},"PeriodicalIF":0.0,"publicationDate":"1990-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13288669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

[Ultrastructural study of osteoclasts: reference to the three-dimensional structure of cultured osteoclasts]. [破骨细胞的超微结构研究:参考体外培养破骨细胞的三维结构]。

Shika Kiso Igakkai zasshi = Japanese journal of oral biology Pub Date : 1990-02-01 DOI: 10.2330/joralbiosci1965.32.28

T Domon

引用次数: 4

[Relation between dentofacial skeletal patterns and the deflection of the roots of mandibular canine and premolars]. [牙面骨骼形态与下颌犬牙和前磨牙牙根偏转的关系]。

Shika Kiso Igakkai zasshi = Japanese journal of oral biology Pub Date : 1990-02-01 DOI: 10.2330/joralbiosci1965.32.50

Y Yoshikawa, Y Ogawa, M Nishimoto, K Teramachi, T Deguchi

引用次数: 1

[Analysis of cellular proteins in 9,10-dimethyl-1,2-benzanthracene induced hamster tongue carcinoma and dysplastic lesions by two-dimensional gel electrophoresis]. [9,10-二甲基-1,2-苯并蒽致仓鼠舌癌及发育不良病变细胞蛋白的二维凝胶电泳分析]。

Shika Kiso Igakkai zasshi = Japanese journal of oral biology Pub Date : 1990-02-01 DOI: 10.2330/joralbiosci1965.32.20

F Ohsaka, S Asanami, H Kizaki, T Sakurada, Y Tanaka

{"title":"[Analysis of cellular proteins in 9,10-dimethyl-1,2-benzanthracene induced hamster tongue carcinoma and dysplastic lesions by two-dimensional gel electrophoresis].","authors":"F Ohsaka, S Asanami, H Kizaki, T Sakurada, Y Tanaka","doi":"10.2330/joralbiosci1965.32.20","DOIUrl":"https://doi.org/10.2330/joralbiosci1965.32.20","url":null,"abstract":"The cellular proteins of hamster tongue squamous cell carcinoma and epithelial dysplastic lesions induced by 9,10-dimethyl-1,2-benzanthracend (DMBA) were analyzed by two-dimensional isoelectric focusing-sodium dodecyl sulfate gel electrophoresis. Many of the polypeptides were common to these lesions. However, there were thirteen main polypeptides which differed between normal tongue mucosa and tongue carcinoma. In the carcinoma, eight polypeptides (5.2/53 K, 5.8/47 K, 6.9/46 K, 6.9/50 K, 7.1/55 K, 7.2/46 K, 7.3/75 K, 7.4/48 K, pI/MW) were decreased and three polypeptides (4.9/32 K, 6.3/50 K, 7.2/60 K) were increased in an amount. The remaining two polypeptides (4.8/37 K, 4.9/36 K) that were not normally present were appeared in carcinoma, but these two new polypeptides were not specific to carcinoma because they were also present in dysplastic lesions. There were marked differences in the polypeptide between various degree of dysplastic lesions and carcinoma on the one hand and normal mucosa on the others. These results suggests that two-dimensional electrophoresis may have usefulness in further research on transformations from normal mucosa to malignant cancer cells.","PeriodicalId":21847,"journal":{"name":"Shika Kiso Igakkai zasshi = Japanese journal of oral biology","volume":"32 1","pages":"20-7"},"PeriodicalIF":0.0,"publicationDate":"1990-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13288670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The fine structure of the fibrous zone of articular cartilage in the rat mandibular condyle. 大鼠下颌髁关节软骨纤维带的精细结构。

Shika Kiso Igakkai zasshi = Japanese journal of oral biology Pub Date : 1990-02-01 DOI: 10.2330/joralbiosci1965.32.69

I Mizuno, N Saburi, N Taguchi, T Kaneda, T Hoshino

{"title":"The fine structure of the fibrous zone of articular cartilage in the rat mandibular condyle.","authors":"I Mizuno, N Saburi, N Taguchi, T Kaneda, T Hoshino","doi":"10.2330/joralbiosci1965.32.69","DOIUrl":"https://doi.org/10.2330/joralbiosci1965.32.69","url":null,"abstract":"The ultrastructure of the articular fibrous zone of the rat mandibular condyle was observed at 3 and 6 weeks of age in order to investigate the histological changes that occur during the establishment of mastication after suckling. We divided the articular fibrous zone into two layers (F1 layer and F2 layer). The F1 layer was composed of fibroblast-like cells, macrophage-like cells, and the matrix which consisted of granular or fibrillar material, loosely arranged small bundles of collagen fibrils with uniform thickness of 30-50 nm, and independent microfibrils. The F1 layer was continuous with the synovial membrane without any distinct boundary in its peripheral area. Mitotic figures could infrequently be observed in the fibroblast-like cells. The cells in the F2 layer closely resembled fibroblasts. The matrix in the F2 layer mostly consisted of densely arranged bundles of collagen fibrils which are not of uniform diameter ranging 40-100 nm. Elastic fibers occurred among the collagen fibrils. The F1 layer which was observed clearly at 3 weeks almost disappeared at 6 weeks of age. It is confirmed that the F1 layer resembling the synovial membrane exists over the condyle up to the weaning period about 3 weeks of age but it degenerates before 6 weeks of age when the masticatory function is established.","PeriodicalId":21847,"journal":{"name":"Shika Kiso Igakkai zasshi = Japanese journal of oral biology","volume":"32 1","pages":"69-79"},"PeriodicalIF":0.0,"publicationDate":"1990-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13289279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

Two types of rhythmical jaw movements evoked by stimulation of the rat cortex. 刺激大鼠皮层引起的两种有节奏的下颚运动。

Shika Kiso Igakkai zasshi = Japanese journal of oral biology Pub Date : 1990-02-01 DOI: 10.2330/joralbiosci1965.32.57

K Sasamoto, G Zhang, M Iwasaki

{"title":"Two types of rhythmical jaw movements evoked by stimulation of the rat cortex.","authors":"K Sasamoto, G Zhang, M Iwasaki","doi":"10.2330/joralbiosci1965.32.57","DOIUrl":"https://doi.org/10.2330/joralbiosci1965.32.57","url":null,"abstract":"Two different patterns of rhythmical jaw movements (RJM) resembling masticatory movements were evoked by stimulation of the cerebral cortex in the rat. The first type of RJM was evoked from the primary jaw motor area, and it always began with a sustained jaw-opening and consisted of high frequency (5-7 Hz) simple opening-closing movements of the jaw. The anterior digastric electromyographic (EMG) activity showed discharges apparently time-locked to each stimulus pulse. The second type of RJM was evoked from the ventral part of the insular cortex. In contrast to the first type of RJM, the second type started with a jaw closing movement in many cases. This type of RJM had large and complex lateral and sagittal movements and the frequency of RJM was low (3-4 Hz). The digastric EMG activity did not show the stimulus-locked component. The pattern of these RJM did not depend on the intensity or frequency of stimulation, but on the site stimulated. These two cortical RJM areas appeared to work independently from each other, because ablation of one area did not affect the pattern of the RJM evoked from the other cortical area.","PeriodicalId":21847,"journal":{"name":"Shika Kiso Igakkai zasshi = Japanese journal of oral biology","volume":"32 1","pages":"57-68"},"PeriodicalIF":0.0,"publicationDate":"1990-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2330/joralbiosci1965.32.57","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13289278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 56

A morphological study on the response between primary periosteum cultures and synthetic hydroxyapatite particles. 初代骨膜培养物与合成羟基磷灰石颗粒反应的形态学研究。

Shika Kiso Igakkai zasshi = Japanese journal of oral biology Pub Date : 1990-02-01 DOI: 10.2330/joralbiosci1965.32.83

T Ono, T Yoshida, C Hoh, J E Davies, T Sakae, N Nagai

引用次数: 3

Demonstration of amelogenins in globular bodies induced in rat-incisor secretory ameloblasts after fluoride administration. 氟处理后大鼠门牙分泌成釉细胞中球状体中淀粉原蛋白的产生。

Shika Kiso Igakkai zasshi = Japanese journal of oral biology Pub Date : 1990-02-01 DOI: 10.2330/joralbiosci1965.32.87

T Sawada, T Yanagisawa, S Takuma

引用次数: 1

Structure of heparan sulfate from rat kidney and liver. 大鼠肾脏和肝脏硫酸肝素的结构。

Shika Kiso Igakkai zasshi = Japanese journal of oral biology Pub Date : 1990-02-01 DOI: 10.2330/joralbiosci1965.32.80

A Kamada, M Kawamura, K Nakamichi, T Sakaki

引用次数: 0

[Properties of N-acetyl-beta-glucosaminidase in the masseter muscle of the mouse]. [小鼠咬肌中n -乙酰- β -氨基葡萄糖酶的特性]。

Shika Kiso Igakkai zasshi = Japanese journal of oral biology Pub Date : 1990-02-01 DOI: 10.2330/joralbiosci1965.32.1

M Murayama, M Hiramatsu, M Kashimata, A Sato, K Ueda, K Ui, N Minami

引用次数: 0