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Prostaglandin E 투여가 백서 치은 섬유아세포에 미치는 영향에 대한 실험적 연구

Other Titles
 (An) experimental study on the effects of prostaglandin E on gingival fibroblasts of rat 
Authors
 김성조 
Issue Date
1983
Description
치의학과/석사
Abstract
[한글]

저자는 백서 65마리를 대조군 15마리, PG군 25마리, Ligature군 25마리씩 3군으로 나누어, 대조군에는 0.1㎖의 생리식염수를 , PG군에는 0.1㎖의 생리식염수에 녹인 2.5μg의 Prostaglandin E를 상악 좌측 제 1대구치 부위에 1일 1회씩 1일, 3일, 5일, 10일, 20일간

국소적으로 주사하고, Ligature군에는 역시 동측 제1대구치 부위에 Ligature를 1일, 3일, 5일, 10일, 20일간 위치시킨 후, 상악골을 적출하여, 치조골 상방의 결체조직 부위를 조직학적으로 관찰하여 다음과 간은 결론을 얻었다.

1. PG군은 대조군에 비해 투여기간의 증가에 따라 교원섬유는 그 양이 점진적으로 감소되고 부종에 의해 분리되며, 파상의 형태를 보였고, 연속성의 소실이 심해졌으며, 혈관주위의 교원섬유의 뚜fut한 소실을 볼 수 있었다.

2. Ligature군은 대조군, PG군에 비해 1일째부터 심한 교원섬유의 파괴를 나타내었고, 실험기간의 경과에 따라 어느 정도 파괴된 섬유가 재생되는 것을 볼 수 있었다.

3. 대조군과 PG군 사이에는 섬유아세포의 수에 있어 별 차이가 없었으나 반면 Ligature군에서는 심한 감소를 보였다.

4. 대조군과 PG군에서는 치근을 따라 상피가 이동되는 것을 볼 수 없었으나, Ligature군에서는 이러한 상피의 이동이 관찰되었다.

[영문]

The purpose of this study was to observe the effects of prostaglandins on gingival fibroblasts and collagen fibers of rat.

The experiment was performed in 65 male rats.

15 rats were used as control and 25 rats as PG group and remaining 25 rats as Ligature group.

In control and PG groups, 0.1 ㎖ of normal saline and 0.1 ㎖ of normal saline with 2.5μg of PG El were injected to the mucobuccal fold of left upper first molar repectively.

In Ligature group,4-0 black silks were placed between the left upper first and second molars.

After 1, 3, 5, 10, 20 experimental days, rats were sacrificed and left maxillary arch with teeth was removed and fixed with 10% neutral formalin and decalcified with 5% formic acrid and embedded in paraffin and sectioned mesiodistally at 7μm intervals and stained with Hematoxylin and Eosin, Gomori's Trichrome and examine the supracrestal area with light microscope.

The following results were obtained.:

1. In the PG group, collagen fibers were decreased in amounts and seperated with edema and had wave course, disruption and loss of perivascular collagen with increasing experimental days as compared with the control group.

2. In ligature group, there was greater loss of collagen fibers than PG and Control groups from the first experimental day, but showed some regeneration of collagen fibers with increasing experimental days.

3. The amounts of fibroblasts were almost equally abundant in control and PG groups, but in ligature group there was marked reduction in amounts of fibroblasts.

4. In Ligature group, there was an apical migration of epithelium along the root surface but in control and PG groups not.
Full Text
https://ymlib.yonsei.ac.kr/catalog/search/book-detail/?cid=CAT000000003674
Files in This Item:
제한공개 원문입니다.
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Advanced General Dentistry (통합치의학과) > 2. Thesis
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/117953
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