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녹차 및 결명자 추출물의 교정용 브라켓과 치면 사이의 경계부에서 분리된 mutans streptococci에 대한 항균작용
임성훈,서정순,윤영주,김광원,유소영,김화숙,국중기,이병래,차종희,박재윤 대한치과교정학회 2003 대한치과교정학회지 Vol.33 No.5
본 연구는 치아우식증에 관련된 Mutans streptococci 표준균주 및 임상분리 균주의 성장억제를 유도할 수 있는 천연 생약추출물을 검색하기 위하여 실시되었다. 녹차추출물은 CHMC-2032를 사용하였으며, 결명자 추출물은 50% 에탄올을 이용하여 얻었다. 이들 추출물의 Mutans streptococci 표준균주 및 교정환자들에서 브라켓과 치면 사이의 경계부에서 분리된 각각 10 균주씩의 S. mutans 및 S. sobrinus에 대한 최소성장억제농도를 액체배지 희석법으로 구하였다. 그 결과 CHMC-2032의 S. mutans 및 S. sobrinus의 표준 균주, S. sobrinus의 대부분 임상분리 균주에 대한 최소성장억제농도는 5 mg/ml이었다. 그러나 결명자 추출물에 의한 S. mutans 및 S. sobrinus에 대한 세균 성장억제 효과는 미미하였다. 본 연구 결과 치아우식증의 예방적 측면에서 결명자차보다는 녹차를 마시는 것이 유리하며, CHMC-2032를 이용하여 구강양치용액을 제조하여 사용할 경우 교정환자를 포함하여 대부분의 사람에게서 치아우식증 예방 효과가 있으리고 추정된다. Mutans streptococci is the major causative factor in dental caries. Especially, orthodontic patients with fixed appliance are a risk group for dental caries. Because fixed appliances attached on teeth may change the environment of dental plaque, the enamel decalcification or dental caries around the bracket and band is a major side effect of orthodontic treatment. The aim of this study was to search plant extracts that have antimicrobial effect on mutans streptococci. Seed-extract of Casio tora were prepared with ethanol and CHMC-2032, the leaf-extracts from Camellia sinensis extract, was obtained extract, 2 type strains and 20 clinical isolates of mutans streptococci isolated from the interface between orthodontic brackets and tooth surfaces in the orthodontic patients were used in this study. The minimal inhibitory concentration of CHMC-2032 was 5 mg/ml on the S. mutans KCTC 3065, S. sobrinus KCTC 3088, and 8 clinical isolates of S. sobrinus. However, there was no antibacterial effect of seed-extract of C. tora on mutans streptococci. These data suggest that green tea may be more effective than the tea prepared from C. tora in the prevention of enamel decalcification or dental caries around brackets.
P075 : Prognostic value of tumor thickness and lymph node metastasis in acral melanoma
( Jae Beom Park ),( Byoung Joon So ),( Min Gun Yoo ),( Sang Geun Lee ),( Soo Hong Seo ),( Il Hwan Kim ) 대한피부과학회 2013 대한피부과학회 학술발표대회집 Vol.65 No.2
Background: Acral melanoma (AM) is the most common type of melanoma in Korea. The presence of melanoma cells in sentinel lymph node is the most powerful indicator of both overall survival and risk of recurrence. However, there have not been much clinical data for pathologic stage Ⅲ, Ⅳ patients in Korea. Objectives: The purpose of our study was to evaluate the prognostic value of tumor thickness and metastatic lymph node count in pathologic stage Ⅲ, Ⅳ patients. Methods: In a retrospective study, we analyzed 15 AM patients from 2004 to 2013, who have undergone primary excision and lymph node biopsy with positive metastasis. We investigated the clinical and histopathologic information from patient`s follow up data, such as stage, treatment, recurrence, metastasis, and evaluated the overall survival and disease free survival. Results: Median Breslow thickness was 5.3mm (range 1 to 15 mm). Median metastatic node count was 7 (1 ~ 42). Median follow up time was 31.4 months (4 ~ 114), median duration of disease free survival was 20.3 months (2 ~ 104). With increasing tumor thickness and metastatic lymph node count, the median survival time and disease free survival showed a tendency to decrease (P=0.144). Conclusion: Until now, there were no studies regarding the prognostic factors of AM over stage 3. This study will provide the building block for future investigations on prognostic factors of AM over stage 3, and further nationwide multicenter studies will be required due to limited cases.
( Byoung Joon So ),( Seung Hyun Chun ),( Jae Beom Park ),( Sung Kyu Jung ),( Il Hwan Kim ) 대한피부과학회 2014 대한피부과학회 학술발표대회집 Vol.66 No.2
Background: There are various techniques for treatment of ingrowing nails. Plastic tube insertion with gutter splint is widely used for conservative treatment options of ingrowing nails. But it shows low success rate and diverse side effects. Silicon tube which ameliorate those shortcomings is lately developed. Objectives: To evaluate the success rate and side effect of silicon tube insertion with gutter splint, we compare silicon tube insertion with plastic tube insertion in ingrowing nail patients. Methods: In 19 patients, undergoing silicon tube insertion with gutter spilnt and 17 patients treated with plastic tube insertion with gutter splint over 2-year period at our hospital. We examine success rate and side effect of each procedure. Results: In silicon tube insertion cases, 14 cases(74%) and plastic tube insertion cases, 10 cases (59%) showed no recurrence after treatment. Severe pain due to tube insertion occurs 2 cases(10%) of silicon tube insertion cases, 3 cases(17%) of plastic tube insertion cases. Recurrent loss of tube occurs 2 cases(10%) of silicon tube insertion cases, 4 cases(23%) of plastic tube insertion cases. Conclusion: The study shows an effective result of silicon tube insertion with gutter splint. In conclusion, application of silicon tube insertion with gutter splint is effective method rather than plastic tube insertion with gutter splint. Further study should be given to the identification of efficacy of silicon tube insertion with gutter splint.
A case of perialar extraorbital sebaceous carcinoma
( Byoung Joon So ),( Jae Beom Park ),( Seung Hyun Chun ),( Ji Hyun Park ),( Sang Wook Son ),( Il Hwan Kim ) 대한피부과학회 2015 대한피부과학회 학술발표대회집 Vol.67 No.1
Sebaceous carcinoma is rare aggressive neoplasm that usually located on the ocular adnexa, especially meibomian gland and zeiss gland, but few cases of sebaceous carcinoma are arising from extraocular sites. Extraocular sebaceous carcinoma is commonly affect the head and neck area, rarely affect the trunk and extremities in elderly. A 58-year-old male who had 0.5ⅹ0.6cm sized slow-growing yellowish plaque on below the left nasal ala for several years visited our hospital. The histologic examination with 3mm punch biopsy shows irregular tumor nest composed of sebaceous undifferentiated cells variation in the shape and size of each nuclei, confirmed the diagnosis of sebaceous carcinoma. The lesion was totally removed by 5mm-margin wide surgical excision and showed no recurrence for three years. We experienced an unusual case of extraorbital sebaceous carcinoma that successfully treated with 5mm-margin wide surgical excision without recurrence.
( Byoung Joon So ),( Seung Hyun Chun ),( Jae Beom Park ),( Sung Kyu Jung ),( Il Hwan Kim ) 대한피부과학회 2014 대한피부과학회 학술발표대회집 Vol.66 No.1
Unguis incarnatus, more commonly known as ingrown toenail, occurs when excessive pressure is applied to the toenail, such as wearing tight-fitted shoes. The nail grows into the fold area which initiates foreign body response, resulting in pain, inflammation and in severe cases granuloma. Locally, non-invasive treatment methods have been performed with the use of plastic tube, dental floss, and shape memory alloy loops in mild cases. Formable acrylic treatment with gutter splint reported by Arai et al, is a simple and effective treatment, but causes pain with movement and is easily lost during the maintenance period. We try to fix these drawbacks with the use of toenail like soft silicon tubes. Silicon tube insertion with gutter splint was applied to three patients, two male and one female, who visited with a left big and right 2nd ingrown toenail respectively. Pain was alleviated and routine observation showed improved toe deformation without other side effects. We believe silicon tube insertion with gutter splint as a simple, safe, and effective method than plastic tube.
( Byoung Joon So ),( Jae Beom Park ),( Min Gun Yoo ),( Sang Geun Lee ),( Il Hwan Kim ) 대한피부과학회 2013 대한피부과학회 학술발표대회집 Vol.65 No.2
Background: Dermoscopy become a useful method for the diagnosis of several disease including actinic keratosis, seborrheic keratosis, angiokeratoma, verruca vulgaris, dysplastic nevus, malignant melanoma, squamous cell carcinoma, basal cell carcinoma. It improves the diagnostic accuracy compared with physical examination. Objectives: The study investigated the diagnostic accuracy rate of the clinical diagnosis with dermoscopy about eight disease which can easily encountered. Methods: Total 56 patients with biopsy-proven eight disease were selected and analysed retrospectively. The dermoscopic features of eight disease that we investigated described by M. Huerta-Brogeras et al, H-E Lee et al, J-H Kim et al, D-Y Lee et al, G. Rezze et al, J. Bauer et al, C. Rosendahl et al and S-W Jwa et al. Results: Dermoscopy significantly increased the diagnostic accuracy of eight disease (after physical examination, 73.2%, after dermoscopy, 91.0%, p<0.05). The diagnostic accuracy of each disease was hard to find statistically significance due to small cases. Conclusion: This study revealed that examination using dermoscopy improve the diagnostic accuracy rate of diagnosis in dermatological clinical field. For evaluating diagnostic accuracy of each disease, we`ll collect much more cases.
( So Young Park ),( Sang Min Lee ),( Jong Wook Shin ),( Byoung Whui Choi ),( Hojoong Kim ),( Jae Seung Lee ),( Sang Do Lee ),( Sung Soo Park ),( Hwa Sik Moon ),( Yong Bum Park ) 대한내과학회 2016 The Korean Journal of Internal Medicine Vol.31 No.2
Background/Aims: The diagnosis of chronic thromboembolic pulmonary hypertension (CTEPH) is diff icult for numerous reasons and is related with a poor prognosis. In Korea, the incidence of CTEPH and its clinical features are unknown. Thus, in this study, we evaluated the clinical characteristics and outcomes of CTEPH in a Korean cohort. Methods: This study included South Korean patients diagnosed with CTEPH between September 2008 and October 2011. Baseline characteristics, treatments and outcomes were analyzed. Results: A total of 134 patients were included in this study with 76 females (56.7%). Their median age was 58.3 ± 15.9 years and dyspnea (112 patients, 83.5%) was the most common presenting symptom. Sixty-three patients (47%) had a history of acute pulmonary embolism or deep vein thrombosis, and six (4.5%) had pulmonary tuberculosis. In total, 28 patients (21%) underwent pulmonary thromboendarterectomy (PTE), and 99 patients had medical therapy. During the study period, 18 patients (13.4%) died. In a multivariate analysis, higher hemoglobin (relative risk [RR], 1.516; 95% confidence interval [CI], 1.053 to 2.184; p = 0.025) and lower total cholesterol levels (RR, 0.982; 95% CI, 0.965 to 0.999; p = 0.037) were associated with increased mortality. Conclusions: This was the first national cohort study of Korean patients with CTEPH. Accurate diagnosis, characterization and distributions of CTEPH are imperative for prompt treatment in patients, particularly those undergoing PTE.