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치주염에 이환되어 발거된 치아의 치주인대가 없는 치근표면에 EDTA처리를 한 후 3차원적으로 배양한 사람치주인대섬유모세포의 부착에 관한 주사전자현미경적 연구
조아영,김병옥,박주철,김흥중,장현선,cho, Ah-Young,Kim, Byung-Ock,Park, Joo-Cheol,Kim, Heung-Jeong,Jang, Hyun-Seon 대한치주과학회 2007 Journal of Periodontal & Implant Science Vol.37 No.1
This study evaluated the possibility of the 3-dimensional attachment of human periodontal ligament fibroblasts to a periodntally involved root surface after an EDTA treatment in vitro. The human PDL fibroblasts were isolated from the middle third of the root of periodontally healthy teeth extracted for orthodontic reasons. The cells were cultured in a medium containing Dulbecco's modified Eagle medium supplemented with 10% fetal bovine serum at $37^{\circ}C$ in humidified air containing 5% $CO_2$. Eight single-rooted teeth were obtained from patients diagnosed with periodotitis. After scaling and root planing, four teeth were etched with 24% ethylenediaminetetracetic acid (EDTA) for two minutes (Experimental group). The other four teeth were not treated with EDTA and were used as the control group. The human PDL fibroblasts were placed in the total root surface and cultured for 4 weeks. The teeth were fixed in 2.5% glutaraldehyde in PBS before preparation for the scanning electron microscopy (SEM) examination. The human PDL fibroblasts showed a healthy morphology on the root surfaces treated with EDTA (Experimental group) and a relatively unhealthy appearance on the treated root surfaces (Control group). This suggests that EDTA favorably affects the 3-dimensional attachment of human PDL fibroblasts cultured on the root surfaces. which may play an important role in periodontal healing and regeneration.
어머니의 자녀성숙행동기대와 유아의 자아탄력성이 유아의 친사회적 행동에 미치는 영향
조아영 ( Cho A-young ),김혜순 ( Kim Hye-soon ) 동국대학교 교육연구소 2016 교육연구 Vol.1 No.1
본 연구에서는 만 3세~만 5세 유아를 둔 어머니의 자녀성숙행동기대와 유아의 자아탄력성이 유아의 친사회적 행동에 미치는 영향을 규명해 보고자 하였다. 연구의 대상은 경상북도 G시에 위치한 D유치원과, 경기도 P시에 위치한 S유치원의 만 3세~만5세까지의 유아와 그 어머니 219쌍이었다. 수집된 자료는 SPSS Win 21.0 프로그램을 이용하여, 신뢰도 분석, 빈도분석, 기술통계 분석, 상관관계분석, 다중회귀분석이 실시되었다. 연구 결과, 첫째, 주요 변수들의 평균 값은 모두 `보통이다` 이상의 수준으로 나타났다. 둘째, 주요변수 간의 상관관계는 모두 유의한 정적 상관성을 나타냈다. 셋째, 어머니의 자녀성숙행동기대와 유아의 자아탄력성이 유아의 친사회적 행동에 미치는 영향을 분석한 결과, 유아의 자아탄력성 중 `자기통제력`, `주도성`, 순으로 영향력이 유의미하였고, 이들 변수가 유아의 친사회적 행동을 44.2% 설명하였다. 결론적으로 유아의 친사회적 행동을 발달시키기 위해서는 유아의 자아탄력성 중 주도성과 자기 통제력 발달이 효과적이므로, 유아기 자아탄력성 발달 지원 프로그램을 개발하여 가정 및 교육현장에 널리 보급할 필요가 있을 것이다. The purpose of this research was to examine effects of mothers` demands for their children`s mature behaviors and their young children`s ego-resilience on their pro-social behaviors. The subjects of this study were 3-5 years of age, 219 young children and their mothers of the private kindergartens in the city of G and P. The collected data was analized using SPSS 21.0 frequency analysis, descriptive statistics, t-test, one-way ANOVA, correlation analysis and multiple regression analysis were conducted. The major result of this study were as follows. First, mean of demanding for the child`s mature behavior, pro-social behavior of young children and ego-resilience of young children were shown higher level than `average` respectively. Second, there were significant relationships among main variables. Third, there were effects of `self-control` and `initiative` which were sub-scale of ego-resilience of young children on the pro-social behaviors of children.
조아영 ( Ah Young Cho ),박영옥 ( Young Ok Park ),이영 ( Young Lee ),김창덕 ( Chang Duk Kim ),서영준 ( Young Joon Seo ),이증훈 ( Jeung Hoon Lee ),박장규 ( Jang Kyu Park ) 대한피부과학회 2009 大韓皮膚科學會誌 Vol.47 No.1
Background: Vitiligo is an acquired pigmentary disorder and half of these patients experience disease onset during childhood. The psychosocial complications of vitiligo can be substantial, and especially for children. There has been no study that has compared the clinical features according to the symmetry of the vitiligo lesions of patients with childhood vitiligo. Objective: The purpose of this study is to evaluate the clinical aspects and distribution of the vitiligo lesions according to the symmetry in patients with childhood vitiligo. Methods: The clinical characteristics and distribution of the vitiligo lesions according to the symmetry were investigated in the 263 childhood patients who were diagnosed with vitiligo at the Dermatology Department of our University Hospital from January 1991 to August 2008. Results: Of the 263 patients, 133 (50.6%) had the asymmetric vitiligo lesions, 76 (28.9%) had the symmetric lesions and 54 (20.5%) had the multiple lesions. Of the patients with asymmetric vitiligo lesions, 91 (34.6%) had the localized lesions and 42 (16.0%) had the segmental lesions. The most common site of the vitiligo lesions was the face (54.8%). In case of the vitiligo lesions on the scalp, face and neck, the asymmetric type was predominant. The lesions on the scalp and the face showed a lesser tendency to spread to other sites. Conclusion: Childhood vitiligo showed the higher prevalence of asymmetric vitiligo lesions. It is expected that the asymmetric type of childhood vitiligo, and especially that on the scalp and the face, may have a favorable clinical course. (Korean J Dermatol 2009;47(1):36~42)
조아영 ( Ah Young Cho ),정남지 ( Nam Ji Jeong ),이영 ( Young Lee ),김창덕 ( Chang Deok Kim ),서영준 ( Young Joon Seo ),이증훈 ( Jeung Hoon Lee ) 대한피부과학회 2010 대한피부과학회지 Vol.48 No.5
Lipoma is the most common benign mesenchymal neoplasm composed of mature fat. Although lipoma can occur in any part of the body, it is infrequently found in the oral cavity. Especially, lipoma of the tongue is rare and there have been no previous reports of this in the Korean dermatology literature. Lingual lipoma, which accounts for 0.3% of all tongue neoplasm, is typically described as well-circumscribed, submucosal mass and it is located on the lateral border of the anterior two-thirds of the tongue surface. We herein report on a rare case of lipoma of the tongue that occurred in a 77-year old male patient. (Korean J Dermatol 2010;48(5):440~441)