アブストラクト(18巻2号:神奈川歯学)

神奈川歯学

Japanese

Title : Actinomyces viscosusに対し溶菌作用を示す歯垢由来細菌の性状と活性因子の検討
Subtitle : 原著
Authors : 石塚詔子
Authors(kana) :
Organization : 神奈川歯科大学口腔細菌学教室
Journal : 神奈川歯学
Volume : 18
Number : 2
Page : 235-244
Year/Month : 1983 / 9
Article : 原著
Publisher : 神奈川歯科大学学会
Abstract : 「緒言」 Howellらはハムスターの歯肉溝歯垢からGram positive, catalase positive filamentous microorganismsを分離し, つづいて, Keyesら, Jordanらはハムスターの歯周疾患病巣部の細菌学的研究を行い, 歯肉嚢歯垢から同じくaerobic branching filamentous microorganismsを分離し, この微生物によって歯周疾患が伝播することを実験し, この微生物をハムスターの実験的歯周疾患の病原体として報告した. その後, この微生物はGeorgらの提案によりActinomyces viscosus(以後A. viscosusと略す)と命名された. A. viscosusはヒト歯垢中に存在し, ヒト由来株はgnotobiotic ratに歯周疾患と歯頸部う蝕を起こすことが認められ, この微生物に対しヒトの歯周疾患の病原体としての研究が進められるようになった.
Practice : 歯科学
Keywords :

English

Title : Studies of Bacteriological Characters and Actinomyces viscosus Lytic Action of a Bacterial Species Recovered from Human Dental Plaque
Subtitle :
Authors : Shoko ISHIZUKA
Authors(kana) :
Organization : Department of Oral Microbiology, Kanagawa Dental College
Journal : Kanagawa Shigaku
Volume : 18
Number : 2
Page : 235-244
Year/Month : 1983 / 9
Article : Original article
Publisher : Kanagawa Odontological Society
Abstract : Abstract : Actinomyces viscosus is known to exist widely in human dental plaque, and cause periodontal disease and cervical caries to gnotobiotic rat. Gingivitis is supposed to be induced by direct invasion of this organism upon periodontal tissues and attended with immunological responce against the somatic antigen of this organism. We isolated a kind of bacteria (AVL bacteria) that had a bacteriolytic activity on A. viscosus from human dental plaque. AVL bacteria was thought to belong to Actinomycetaceae. AVL bacteria was detected from dental plaque of two of five children examined. It was detected at cervical of deciduous molar at the both side of a mouth. AVL bacteria showed the bactereriolytic activity against both active and heat-inactivated A. viscosus. The substance of this activity was not considered to be a bacteriophage. It existed in the supernatant of AVL bacteria culture, and was inactivated by heating at 60℃ for 30 min., and was shown to be active between pH 6.0 and 8.0.
Practice : Dentistry
Keywords :