The Journal of Nihon University School of Dentistry最新文献_第2页

Effects of YM-14673, a thyrotropin-releasing hormone analogue, injected into the shell and the core of the nucleus accumbens on production of repetitive jaw movements in rats: comparison with the effects of a dopamine D1 and D2 receptor agonist combination. 将促甲状腺激素释放激素类似物YM-14673注射到伏隔核壳和核中对大鼠重复性下颚运动产生的影响:与多巴胺D1和D2受体激动剂联合作用的比较

The Journal of Nihon University School of Dentistry Pub Date : 1997-09-01 DOI: 10.2334/josnusd1959.39.142

K Adachi, N Hirose, H Fujioka, N Yoneshige, N Koshikawa

{"title":"Effects of YM-14673, a thyrotropin-releasing hormone analogue, injected into the shell and the core of the nucleus accumbens on production of repetitive jaw movements in rats: comparison with the effects of a dopamine D1 and D2 receptor agonist combination.","authors":"K Adachi, N Hirose, H Fujioka, N Yoneshige, N Koshikawa","doi":"10.2334/josnusd1959.39.142","DOIUrl":"https://doi.org/10.2334/josnusd1959.39.142","url":null,"abstract":"The present study examined whether the shell and the core of the nucleus accumbens play a differential role in the display of YM-14673-induced jaw movements in rats. For that purpose the effects of YM-14673 were compared to those of a SKF 82958 and quinpirole combination, a dopamine D1 and a D2 receptor agonist respectively, that is known to functionally differentiate these two subregions of the nucleus. Consistent with the previous report, bilateral injections of a mixture of SKF 82958 (5 micrograms) and quinpirole (10 micrograms) into the shell of the nucleus accumbens produced repetitive jaw movements, whereas similar injections of the mixture into the core did not induce such an effect. In contrast, there was no regional difference in the effects of YM-14673 on the production of repetitive jaw movements. Thus, both bilateral injections of YM-14673 (0.1 or 1.0 microgram) into the shell or the core produced similar repetitive jaw movements in a dose-related manner. Moreover, the pattern of oral movements induced by YM-14673 differed from that induced by the mixture of SKF 82958 and quinpirole; frequent tongue protrusions were evident in rats treated with the mixture but were not seen in YM-14673-treated rats. It therefore appears that, unlike the effects of the mixture of dopamine D1 and D2 receptor agonists, the effects of YM-14673 in the shell on the production of rat jaw movements do not differ from the effects of the compound in the core.","PeriodicalId":22638,"journal":{"name":"The Journal of Nihon University School of Dentistry","volume":"39 3","pages":"142-6"},"PeriodicalIF":0.0,"publicationDate":"1997-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2334/josnusd1959.39.142","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20284355","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

Epithelial hyperplasia of the extra-glandular excretory ducts of human minor salivary glands: a histopathologic study. 人小唾液腺腺外排泄管上皮增生:组织病理学研究。

The Journal of Nihon University School of Dentistry Pub Date : 1997-09-01 DOI: 10.2334/josnusd1959.39.147

Y Takeda, H Yamamoto

{"title":"Epithelial hyperplasia of the extra-glandular excretory ducts of human minor salivary glands: a histopathologic study.","authors":"Y Takeda, H Yamamoto","doi":"10.2334/josnusd1959.39.147","DOIUrl":"https://doi.org/10.2334/josnusd1959.39.147","url":null,"abstract":"The histologic features of normal and hyperplastic epithelia of the extra-glandular excretory ducts of human minor salivary glands were studied, and their pathologic significance evaluated. Normal duct epithelium consisted of two layers: inner columnar cells, and basal cubical or squamous cells. A few goblet cells were present among the inner cells. Hyperplasia of the duct epithelia occurred focally or entirely, and was classified into the following histologic types: (1) simple hyperplasia, and (2) metaplastic hyperplasia, which were divided into (a) mucous cell hyperplasia, (b) oncocytic hyperplasia and (c) squamous cell hyperplasia. Squamous cell hyperplasia was subdivided into (i) acanthotic type and (ii) reserve cell-like type with or without dysplasia. Simple or metaplastic epithelial hyperplasia of the extra-glandular excretory ducts of minor salivary glands may be induced by chronic inflammation or other types of irritation, and proliferating cells of such regenerating tissue sometimes exhibit features reminiscent of a neoplastic process. Furthermore, it is suggested that metaplastic epithelial hyperplasia of the excretory minor salivary gland ducts could be the site of origin of tumor development, i.e., some oral squamous cell carcinomas may arise from primary lesions in the hyperplastic epithelium of the extraglandular excretory minor salivary gland ducts.","PeriodicalId":22638,"journal":{"name":"The Journal of Nihon University School of Dentistry","volume":"39 3","pages":"147-53"},"PeriodicalIF":0.0,"publicationDate":"1997-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2334/josnusd1959.39.147","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20284356","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: 7

Intraoral minor salivary gland tumors: a retrospective study of 129 cases. 129例口腔内小唾液腺肿瘤回顾性分析。

The Journal of Nihon University School of Dentistry Pub Date : 1997-09-01 DOI: 10.2334/josnusd1959.39.128

K Kusama, S Iwanari, K Aisaki, M Wada, J Ohtani, K Itoi, K Hanai, K Shimizu, K Komiyama, I Kudo, I Moro

引用次数: 57

Immunohistochemical and biochemical characterization of sulphated proteoglycans in embryonic chick bone. 鸡胚骨中硫酸盐蛋白多糖的免疫组织化学和生化特性。

The Journal of Nihon University School of Dentistry Pub Date : 1997-09-01 DOI: 10.2334/josnusd1959.39.156

M Takagi, Y Ono, M Maeno, K Miyashita, K Omiya

{"title":"Immunohistochemical and biochemical characterization of sulphated proteoglycans in embryonic chick bone.","authors":"M Takagi, Y Ono, M Maeno, K Miyashita, K Omiya","doi":"10.2334/josnusd1959.39.156","DOIUrl":"https://doi.org/10.2334/josnusd1959.39.156","url":null,"abstract":"The type and distribution of sulphated proteoglycans (PGs) in the midshaft subperiosteal bone of 15-18-day embryonic chick femurs were studied immunocytochemically and biochemically, using four monoclonal antibodies (MAb 2B6, 3B3, 1B5, and 5D4). These MAb specifically recognize epitopes in chondroitin 4-sulphate (C4-S) and dermatan sulphate (DS); chondroitin 6-sulphate (C6-S) and unsulphated chondroitin (C0-S); C0-S; and keratan sulphate (KS) respectively. Immunohistochemistry showed that staining of C4-S, DS, and KS, but not of C6-S and C0-S, was limited to osteoid, the cell surface of osteocytes, and to the walls of osteocytic lacunae and bone canaliculi in 15-18-day embryonic specimens. However, no significant difference in the distribution and intensity of immunostaining was observed in these specimens. Bone proteins were extracted from fresh 18-day embryonic specimens with a three extraction procedure, 4 M guanidine HCl (GdnCl, G-1 extract), 0.4 M EDTA (E-extract), followed by GdnCl (G-2 extract), to characterize mineral binding and collagenous matrix associated PGs in E- and G2-extracts respectively. Western blot analysis of E- and G2-extracts demonstrated that chondroitinase ABC-digested PGs with a molecular weight (Mr) approximately of 45,000 containing GAGs predominantly corresponding to C4-S and/or DS, with no detectable C6-S or C0-S present in the mineral and matrix phase, whereas KSPGs having an Mr of approximately 72,000 are only present in the mineral phase. These results indicate that embryonic chick bone contains small PGs having C4-S, DS, and KS chains with preferential localization to osteoid, the cell surface of osteocytes, and to the walls of osteocytic lacunae and bone canaliculi.","PeriodicalId":22638,"journal":{"name":"The Journal of Nihon University School of Dentistry","volume":"39 3","pages":"156-63"},"PeriodicalIF":0.0,"publicationDate":"1997-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2334/josnusd1959.39.156","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20284358","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

Analysis of dental health education activity carried out by dentistry students. 牙科学生开展牙齿健康教育活动情况分析。

The Journal of Nihon University School of Dentistry Pub Date : 1997-09-01 DOI: 10.2334/josnusd1959.39.115

M E López de Bocanera, M E Colloca, J N Schallmach, A Chervonagura de Gepner

{"title":"Analysis of dental health education activity carried out by dentistry students.","authors":"M E López de Bocanera, M E Colloca, J N Schallmach, A Chervonagura de Gepner","doi":"10.2334/josnusd1959.39.115","DOIUrl":"https://doi.org/10.2334/josnusd1959.39.115","url":null,"abstract":"During their career, students of dentistry acquire techniques which they will employ later on their patients. Since the health of these patients and society itself cannot be left exclusively to the professional activity of these future dentist, an experimental extra-class experience was carried out with pupils from primary and secondary schools. The students gave the pupils presentations on Nutrition, Calcium and Phosphorus and Caries. The aim of this study was to evaluate: a) the influence of society on the teaching process, and training during the first university year, and b) epidemiologic aspects. Our results indicated that 32.2% of the primary and 15.6 % of the secondary school pupils were unfamiliar with the disciplines presented by the students. According to the evaluations 78.1% of the primary and 94.0% of the secondary school pupils achieved or exceeded the minimum requirements considered necessary for correct nutritional and oral health habits. Evaluations of the students demonstrated that the students who had participated in the activity did not have knowledge superior to that of non-participating students. Therefore this experience can be considered an exercise in utilizing human resources for primary prevention rather than an innovative methodology which improves the teaching-learning process. It also seems recommendable in view of the low cost of the exercise.","PeriodicalId":22638,"journal":{"name":"The Journal of Nihon University School of Dentistry","volume":"39 3","pages":"115-22"},"PeriodicalIF":0.0,"publicationDate":"1997-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2334/josnusd1959.39.115","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20287036","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

Arg-Gly-Asp(RGD) peptides inhibit Streptococcus mitis to adhere to fibronectin. Arg-Gly-Asp(RGD)肽抑制炎链球菌粘附纤维连接蛋白。

The Journal of Nihon University School of Dentistry Pub Date : 1997-09-01 DOI: 10.2334/josnusd1959.39.154

N Sugano, H Tanaka, K Ito, S Murai

引用次数: 7

Relationship between maxillofacial morphology and morphological characteristics of vertical sections of the mandible obtained by CT scanning. 颌面部形态与CT扫描所得下颌骨纵切面形态特征的关系。

The Journal of Nihon University School of Dentistry Pub Date : 1997-06-01 DOI: 10.2334/josnusd1959.39.71

S Kohakura, K Kasai, I Ohno, E Kanazawa

{"title":"Relationship between maxillofacial morphology and morphological characteristics of vertical sections of the mandible obtained by CT scanning.","authors":"S Kohakura, K Kasai, I Ohno, E Kanazawa","doi":"10.2334/josnusd1959.39.71","DOIUrl":"https://doi.org/10.2334/josnusd1959.39.71","url":null,"abstract":"A study was conducted to evaluate the relationship between morphological characteristics of vertical sections of the mandibular body and dentopfacial morphology. Cortical bone thickness, tooth inclination and bone inclination of the mandible were investigated. Among skeletal components, ANSMe distance was associated with the buccal cortical bone thickness of the P2 (second premolar) section. Gonial angle, SN to mandibular angle, and palatal to mandibular angle were negatively correlated with the buccal cortical bone thickness of P2 and M1 (first molar) sections. SNA and SNB which indicated the protrusion of the upper and lower jaws were positively correlated with the buccal cortical bone thickness of the M1 section. Among denture components, lower and upper incisor positions showed a significant negative correlation with the buccal cortical bone thickness of the P2 section. The interincisal angle was associated with the basal cortical bone thickness of the M2 (second molar) section. In summary, there were significant and complex relationships between the structures of the mandibular body and maxillofacial morphology. Facial types which relate to masticatory function are associated with the cortical bone thickness of the mandibular body.","PeriodicalId":22638,"journal":{"name":"The Journal of Nihon University School of Dentistry","volume":"39 2","pages":"71-7"},"PeriodicalIF":0.0,"publicationDate":"1997-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2334/josnusd1959.39.71","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20235067","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: 31

Heterogeneity of peroxidase positive granules in normal and pathologic human neutrophils. 正常和病理人中性粒细胞中过氧化物酶阳性颗粒的异质性。

The Journal of Nihon University School of Dentistry Pub Date : 1997-06-01 DOI: 10.2334/josnusd1959.39.61

R T Parmley

{"title":"Heterogeneity of peroxidase positive granules in normal and pathologic human neutrophils.","authors":"R T Parmley","doi":"10.2334/josnusd1959.39.61","DOIUrl":"https://doi.org/10.2334/josnusd1959.39.61","url":null,"abstract":"Studies have demonstrated significant heterogeneity in neutrophil granule morphology and physical density. Using cytochemical methods to localize peroxidase and vicinal glycol containing complex carbohydrates we examined the heterogeneity of neutrophil granules from intact human neutrophil granules in 13 isolated granule density fractions, calcium ionophore A23187 treated neutrophils and neutrophils from patients with Chediak-Higashi Syndrome and Specific Granule Deficiency. At least four distinct populations of peroxidase positive granules (PPG) were identified based on peroxidase staining, vicinal glycol staining, morphology, beta-glucuronidase and defensin content, and physical density characteristics. The smallest (0.15 micron diameter) PPG was the least dense granule, had a unique peroxidase/beta-glucuronidase ratio, reacted intensely for vicinal glycols, resisted ionophore degranulation and was not consumed in giant granule formation in Chediak-Higashi Syndrome. The largest (0.3 micron average diameter) and most physically dense PPG was rich in defensins, stained weakly for vicinal glycols, and was absent in specific granule deficiency. These studies demonstrate and correlate morphologic, biochemical, functional, and pathologic differences in PPG populations.","PeriodicalId":22638,"journal":{"name":"The Journal of Nihon University School of Dentistry","volume":"39 2","pages":"61-6"},"PeriodicalIF":0.0,"publicationDate":"1997-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2334/josnusd1959.39.61","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20235065","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

Cephalometric analysis of masseter muscle and dentoskeletal morphology in dentate and edentulous humans. 有齿和无齿人类咬肌和齿骨形态的头测量分析。

The Journal of Nihon University School of Dentistry Pub Date : 1997-06-01 DOI: 10.2334/josnusd1959.39.78

K Kasai, L C Richards, E Kanazawa, T Iwasawa

{"title":"Cephalometric analysis of masseter muscle and dentoskeletal morphology in dentate and edentulous humans.","authors":"K Kasai, L C Richards, E Kanazawa, T Iwasawa","doi":"10.2334/josnusd1959.39.78","DOIUrl":"https://doi.org/10.2334/josnusd1959.39.78","url":null,"abstract":"A study was done to clarify the attachment position of the superficial masseter muscle and its relationship with craniofacial morphology in dentate and edentulous subjects. Data were obtained from lateral cephalometric radiographs of a total of 39 cadavers in which the superficial masseter muscle had been defined with colloidal barium. Principal component analysis provided evidence that the lower masseter muscle width was associated with the size of the ramus, and related to the position of the anterior margin of the muscle. Linear discriminant function data suggested that ramus width, coronoid height and the distance between the anterior margin of the masseter muscle and the mandibular notch contributed most to the observed difference between dentate and edentulous subjects. The derived function correctly assigned 100% of dentate and 95% of edentulous subjects. The results of this study indicated that a reduction of masticatory function was associated with the position of the anterior border of the masseter muscle insertion and also with differences in ramus dimension, the most significant of which were differences in the coronoid process and gonial angle. In general, age was not a significant determinant of variation in superficial masseter muscle dimensions or orientation.","PeriodicalId":22638,"journal":{"name":"The Journal of Nihon University School of Dentistry","volume":"39 2","pages":"78-85"},"PeriodicalIF":0.0,"publicationDate":"1997-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2334/josnusd1959.39.78","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20235068","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: 9

A central tubercle on the lingual surface of the upper lateral incisor: report of a case. 上侧切牙舌面中心结节1例报告。

The Journal of Nihon University School of Dentistry Pub Date : 1997-06-01 DOI: 10.2334/josnusd1959.39.86

Y Fukuta, M Totsuka, Y Takeda, H Yamamoto

引用次数: 4