THE LOCALIZATION OF ACID PHOSPHATASE ACTIVITY IN OSTEOBLASTS INCIDENT TO EXPERIMENTAL TOOTH MOVEMENT
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概要
- 論文の詳細を見る
The experimental teeth (upper right first molars of adult Wistar rats) were moved in the buccal direction for 4 days by a wire spring and subsequently moved in the lingual direction for 24 and 72 hr. The ultrastructual changes and localization of acid phosphatase (ACPase) activity of the osteoblasts were examined in the lingual periodontium (pressure side) of the teeth moved in the experimental periods of 24 and 72 hr. The following results were obtained: 1) Osteoblasts in the lingual areas of the periodontium of the 24 hr experiment contained autophagic vacuoles in the cytoplasm, while rough-surfaced endoplasmic reticulum and mitochondria were reduced. 2) ACPase activity in the osteoblasts adjacent to the bone surface was noted in lysosomes, Golgi apparatus and autophagic vacuoles. The enzyme activity was also present in the lysosomes showing lysosomal wrapping mechanism and in the lysosomes fusing with the vacuoles. 3) The lingual areas of the periodontium in the 72 hr experiment were characterized by necrosed tissues and none of the reaction products of the enzyme activity could be found in these areas.
- 日本組織細胞化学会の論文
著者
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Hirashita A
Department Of Orthodontics School Of Dental Medicine Tsurumi University
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Hirashita Ayao
Department Of Orthodontics School Of Dental Medicine Tsurumi University
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Nakamura Yoshiki
Department Of Neurosurgery National Hospital Organization Tokyo Medical Center
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KUWABARA YOSUKE
Department of Orthodontics, School of Dental Medicine, Tsurumi University
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Kuwabara Yosuke
Department Of Orthodontics School Of Dental Medicine Tsurumi University
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Nakamura Yoshiki
Department Of Built Environment Interdisciplinary Graduate School Of Science And Engineering Tokyo I
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Nakamura Yoshiki
Department of Orthodontics, School of Dental Medicine, Tsurumi University
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