Demethylchlorote tracyclin이 백서의 관상봉합 발육에 미치는 영향에 관한 실험적 연구

• 영문명: An Experimental Study of The Effect of Methylcholrotetracyclne on Growth of Coronal Suture in Rats
• 발행기관: 대한치과교정학회
• 저자명: 이준규(June-Kyu Lee)
• 간행물 정보: 『The Korean Journal of Orthodontics』제10권 제1호, 7~14쪽, 전체 8쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 1980.12.31

영문 초록

To study some informations on the morphogenesis and developmental process of the coronal suture in rats, the author performed daily oral administrations of semethylchlorotetracycline, a kind of tetracycline group, in the amount of 30mg/kg of body weight to the female rats from the 7th day of pregnaney to the time of delivery. Microscopic evaluation was undertaked on the fetal rats in the experimental group. The subject of this experiment were defined to the fetal rats of each group at 1st, 3rd, 7th and 14th day after birth. All these fetal rats were sacrificed and the heads were removed. All the tissue sections were fixed with 10% formalin, Bouin´ and Carnoy´ solution and then stained by Hematoxylin-Van Gieson stain, or Feulgen and Rossenbeck, Periodic acid Schiff, and prepared for alcian blue reaction. The results were as follows ; 1. The directions of osteogenic fibers were arranged irregulary during first 3 days, but after the 7th day they tended to change radial dirdctions like control group. 2. The density of deep stained cells by Feulgen-Rossenbeck rection were shown less in the experimental group than that in the control group in first 3 days, but there was shown no significant difference between both groups after the 7th day. 3. PAS reaction in early stage was generally negative in the experimental group unlike as in the control group, but diffuse reaction was observed in the loose middle zone like as in the control geoup agter 14th day. 4. Alcian blue reaction was negative in cambial zone, and slightly positive in uniting zone compared with control group in early stage. After 14th day, however, there was observed a tendency of moderately positive reaction.