손상 받은 각막 상피세포가 중배엽 줄기세포의 분화에 미치는 영향

신미선,홍현숙,손영숙,김재찬,Mi Sun Shin,M,S,Hyun Sook Hong,M,S,Young Sook Son,Ph,D,Jae Chan Kim,M,D 대한안과학회 2007 대한안과학회지 Vol.48 No.3

Purpose: To identify the effects of microenvironmental changes caused by human corneal epithelial damages to characteristics or differentiation of human mesenchymal stem cells (hMSCs). Methods: Artificial corneal damage was induced onto a cultured monolayer of human corneal epithelial cells. hMSCs were then co-cultured with damaged human corneal epithelial cells (dIHCE). Morphological changes in the co-cultured hMSCs were observed. To elucidate the differentiation of hMSCs into corneal keratocytes or epithelial cells, the expressions of α-smooth muscle actin, keratin-3/-12, and E-cadherin were confirmed by immunofluorescence. Results: hMSCs co-cultured with dIHCE showed enhanced adherence in the neighborhood of dIHCE and morphological change into dendritic shapes at 6 days post-seeding. Although the expression of α-smooth muscle actin, known as hMSCs marker, significantly decreased at the dIHCE-contacted site of hMSCs; there were no expressional changes on keratin-3/-12 and E-cadherin, the markers of corneal epithelial cells. Interestingly, positive expression of corneal epithelial marker keratin-3/-12 was observed in dIHCE co-cultured hMSCs. hMSCs co-cultured with normal human corneal epithelial cells (nIHCE) were unable to attach, and showed no change in the expression of α-smooth muscle actin. Conclusions: It is proposed that dIHCE causes a morphological change in hMSCs, and decreased expression of α-smooth muscle actin. These results suggest that dIHCE can affect a change in the characteristics and differentiation of hMSCs.

완전무치악 환자에서 디지털 가이드 수술 방식을 이용한 무피판절개 임플란트 식립증례: 증례보고 및 5년 추적관찰

신미선,백장현,Shin, Mi-sun,Paek, Janghyun 대한치과보철학회 2019 대한치과보철학회지 Vol.57 No.3

One of the fastest growing segments of implant dentistry is the utilization of computed tomography (CT) scan data and treatment planning software in conjunction with guided surgery for implant reconstruction cases. Computer assisted planning systems and associated surgical templates have established a predictable, esthetic, functional technique for placing and restoring implants. Especially, a philosophy of restoratively driven implant placement has been generally adopted. Recently, a variety of commercial dental fields have released their scanning and fabricating protocols and methods for restorations. This process is still being investigated and developed for the most precise and predictable outcome. This case report describes a female patient who wanted dental implants in fully edentulous areas. Restoratively driven implant placements were performed with surgical guide and the patient was fully satisfied with the clinical results, and at 5-year post restorative follow-up assessment, both implant and prosthesis were proved clinical success. 디지털 방식을 이용한 치과 임플란트 진료에서 가장 주목받는 분야 중 하나가 디지털 소프트웨어와 컴퓨터 단층촬영을 이용하여 수술용 스텐트를 제작, 임플란트를 식립하는 분야이다. 컴퓨터를 이용한 디지털 임플란트 치료계획 시스템과 이를 이용한 수술용 가이드는 예지성과 심미성, 기능성을 갖춘 임플란트의 식립과 수복을 가능하게 한다. 특히 이러한 가이드 수술은 임플란트 수복물의 형태와 기능을 고려한 임플란트의 식립 시 더욱 유리하다. 최근 여러 제조사에서 보철물 제작을 위해 치과용 스캔부터 제작방법까지 다양한 디지털 방식의 제작과정을 제시하고 있다. 이러한 방법들은 정확하고 예지성 있는 예후를 위해 여러 연구자들에 의해 연구되어지고 있으며, 점차 발전하고 있다. 이번 증례는 완전무치악의 여성 환자에서 임플란트 고정성 보철물을 이용한 수복증례이다. 하악은 all-on-four 방식을 적용하여 4개의 임플란트를 식립하였으며, 상악은 이에 기초하여 6개의 임플란트를 식립하였다. 최종보철물에 기초한 임플란트의 식립을 위해 임플란트 수술용 스텐트를 이용하였으며, 환자는 치료 결과에 만족하였으며, 5년 추적관찰 결과, 임플란트와 보철물 모두 안정적으로 유지되고 있다.

Replica technique과 Triple-scan protocol을 이용한 지르코니아 전부도재관의 변연 및 내면 적합도에 관한 비교 연구

신미선,이장훈,Shin, Mi-Sun,Lee, Jang-Hoon 대한치과보철학회 2017 대한치과보철학회지 Vol.55 No.4

목적: 본 연구는 보철물의 적합도를 계측하는 두 가지의 측정방법을 평가하기 위해 지르코니아로 전부도재관을 제작하고 replica technique과 triple-scan protocol을 이용하여 전부도재관의 변연 및 내면 적합도를 비교 연구하고자 하였다. 재료 및 방법: 타이타늄의 지대치 모형을 제작하여 20개의 지르코니아 전부도재관을 제작하였다. 제작된 지르코니아 전부도재관 10개는 replica technique을 이용해 복제하고 복제된 시편을 협설, 근원심으로 절단하여 변연 및 내면 적합도를 측정하였고, 다른 10개의 전부도재관은 triple-scan protocol을 이용하여 협설과 근원심으로 단면을 형성하고 변연 및 내면 적합도를 계측하여 통계 분석하였다 (${\alpha}=.05$). 결과: 변연과 내면 적합도는 replica technique $49.86{\pm}29.69{\mu}m$, triple-scan protocol $75.35{\pm}64.73{\mu}m$로 유의한 차이가 있었고 (P < .001), 내면 적합도만을 측정한 결과 각각 $58.38{\pm}31.77{\mu}m$, $64.00{\pm}46.43{\mu}m$로 유의한 차이가 없었다 (P > .343). 결론: Replica technique과 triple-scan protocol을 이용하여 전부도재관의 변연 및 내면 적합도를 비교 측정한 결과 triple-scan protocol에서의 변연 적합도가 크게 측정되었고, 내면 적합도만 비교해 본 결과 통계적인 유의한 차이가 없었다. This study was conducted to compare the marginal and internal fit of all ceramic crown using the replica technique and the triple-scan protocol. Materials and methods: Twenty zirconia ceramic crowns were fabricated using titanium abutment model. All crowns were divided into two groups of 10 each, depending on the replica technique and the triple-scan protocol. The internal and marginal fit of 10 zirconia ceramic crowns were measured at 17 points for each specimen using the replica technique. The other 10 ceramic crowns were measured using the triple-scan protocol. Statistical analysis was performed by t-test (${\alpha}=.05$). Results: The mean and standard deviation of marginal and internal fit were significantly different between the replica technique ($49.86{\pm}29.69{\mu}m$) and triple-scan protocol ($75.35{\pm}64.73{\mu}m$, P<.001). The mean and standard deviation of internal fit except marginal fit were $58.38{\pm}31.77{\mu}m$ and $64.00{\pm}46.43{\mu}m$, respectively (P>.343). Conclusion: There was a statistically significant difference in the marginal fit measured by the two methods. However, there was no statistically significant difference in the internal fit between the two methods.

단일구조 지르코니아 크라운의 소결 후 추가 소성 과정이 변연 및 내면 적합도에 미치는 영향

신미선,이현종,Shin, Mi-Sun,Lee, Hyeonjong 대한치과보철학회 2019 대한치과보철학회지 Vol.57 No.4

목적: 본 연구는 단일구조 지르코니아 크라운의 소결 후 소성 과정이 변연 및 내면 적합도에 미치는 영향에 대하여 3차원으로 평가해 보고자 하였다. 재료 및 방법: 타이타늄 지대치 모형을 제작하여 10개의 단일구조 지르코니아 크라운을 제작하였다. 제작된 단일구조 지르코니아 크라운을 소결 한 상태를 대조군으로, 소결 후 광택을 위해 추가적인 소성단계를 거친 후를 실험군으로 설정하였다. 각 군에서 triple-scan protocol을 이용하여 협설과 근원심으로 단면을 형성하고 변연 및 내면 적합도를 계측하여 통계 분석하였으며, 삼차원 표면 비교를 시행하였다 (${\alpha}=.05$). 결과: 변연과 내면 적합도를 분석한 결과 근심 축벽에서 대조군($32.0{\pm}24.3{\mu}m$)과 실험군 간($17.0{\pm}10.8{\mu}m$)의 통계적 유의한 차이가 있었고 (P < .020), 원심 축벽에서 대조군($60.2{\pm}24.3{\mu}m$)과 실험군($71.8{\pm}21.5{\mu}m$)간의 통계적으로 유의한 차이가 있었다 (P < .01). 나머지 측점지점에서는 통계적으로 유의한 차이가 없었다. 결론: 단일구조 지르코니아 크라운에서의 소결 후 추가적인 소성은 내면의 변형에 큰 영향을 미치지 않았고 임상적으로 허용 가능한 범위에 있었다. Purpose: To evaluate an effect of additional firing process after sintering of monolithic zirconia crown on marginal and internal fit through three-dimensional analysis. Materials and methods: Ten monolithic zirconia crowns were fabricated using titanium abutment model. Monolithic zirconia crowns were designed, milled, and sintered as a control group, and additional firing with coloring was performed as a test group. Three dimensional analysis were performed by using triple-scan protocol, and cross-section analysis on mesio-distal and disto-lingual section was evaluated to measure marginal and internal fitness. Then, three-dimensional surface difference on between two groups was evaluated (${\alpha}=.05$). Results: There was statistically significant difference between the control group ($32.0{\pm}24.3{\mu}m$) and the test group ($17.0{\pm}10.8{\mu}m$) in the mesial axial wall (P < .02) and the control group ($60.2{\pm}24.3{\mu}m$) and the test group ($71.8{\pm}21.5{\mu}m$) in the distal axial wall (P < .01). There was no statistically significant difference at the remaining point. Conclusion: There was no statistical significance on the deviation of inner surface of crown according to firing number, and the results of both group were considered clinically acceptable.

중복 자궁경부와 질중격을 가진 완전 중격 자궁의 변형

신미선 ( Mi Sun Shin ),한경희 ( Kyung Hee Han ),김수아 ( Su Ah Kim ),정희정 ( Hee Jung Jung ),황은주 ( Eun Ju Hwang ),지병철 ( Byung Chul Jee ),서창석 ( Chang Suk Suh ) 대한산부인과학회 2010 Obstetrics & Gynecology Science Vol.53 No.9

Rare mullerian anomalies without any present classification were sometimes reported. A 30-year-old nulligravid woman was referred to our hospital with 2-year history of primary infertility. Laparoscopic examination revealed a relatively intact uterine fundus with both patent fallopian tubes. Hysteroscopic exam confirmed the presence of double vagina and cervix, as well as complete uterine septum with opening at the lower segment. Hysteroscopic septotomy was successfully performed through the right-sided cervix. A variant of complete septate uterus with double cervix that communicated at the isthmic portion could be successfully treated by hysteroscopic operation.

RFID 접목을 통한 패션산업 발전방안에 관한 연구

송자영(Ja Young Song),신미선(Mi Sun Shin),임주연(Joo Yeon Lim) 한국통신학회 2012 한국통신학회 학술대회논문집 Vol.2012 No.6

심장이식 환자에서 발생한 비결핵항산균 폐질환 2예

조정민 ( Jung Min Jo ),신미선 ( Mi Seon Shin ),김주희 ( Joo Hui Kim ),김민정 ( Min Jung Kim ),박현정 ( Hyun Jung Park ),나희경 ( Hee Kyung Na ),조경욱 ( Kyung Uk Jo ),김재중 ( Jae Joong Kim ),심태선 ( Tae Sun Shim ) 대한결핵 및 호흡기학회 2010 Tuberculosis and Respiratory Diseases Vol.69 No.3

Nontuberculous mycobacterial (NTM) diseases are increasing worldwide. However NTM lung disease in organ transplant recipients has been rarely reported. Here, we report 2 cases of NTM lung disease in heart transplant recipients. A 37-year-old man, who had undergone a heart transplant one year previous, was admitted to hospital due to a cough. Chest CT scan showed multiple centrilobular nodules in both lower lungs. In his sputum, M. abscessus was repeatedly identified by rpoB gene analysis. The patient improved after treatment with clarithromycin, imipenem, and amikacin. An additional patient, a 53-year-old woman who had undergone a heart transplant 4 years prior and who suffered from bronchiectasis, was admitted because of purulent sputum. The patient`s chest CT scan revealed aggravated bronchiectasis; M. intracellulare was isolated repeatedly in her sputum. Treatment was successfully completed with clarithromycin, ethambutol, and ciprofloxacin. NTM lung disease should be considered as a potential opportunistic infection in organ transplant recipients.

GC에서 검출한계 결정을 위한 새로운 접근 방법에 대한 연구

오도석 ( Doe Suk Oh ),신경애 ( Kyoung Ae Shin ),이지아 ( Ji A Lee ),임종호 ( Jong Ho Lym ),신미선 ( Mi Sun Shin ) 한국산업위생학회 2010 한국산업보건학회지 Vol.20 No.4

The purity methods to determine LOD/LOQ using standard deviation of the residual, intercept and blank by IUPAC and ACS describe many of the pitfalls and pose significant challenges to analytical chemists. Therefore, the aim of this study is the development of the simple, easy, convenient and statistically significant method to determine LOD in quantitative analysis of organic solvents by GC. The new approaching method by linearization in the given concentration range used coefficient of variation ; σn-1/S(standard deviation, σn-1 and average, S) of sensitivity(Response/concentration). The comparison of results among the purity methods(IUPAC and ACS) and the linearization have been fulfilled the F-test for standard deviations and t-test for LOD range values. The results of F-test and t-test are satisfied within 95 % confidence level, respectably. The LOD values determined by the new procedure are n-Hexane 0.0116mg/m3, Toluene 0.0807mg/m3, and o-Xylene 0.0494mg/m3. Because the standard deviation of the residual, intercept and blank and the slope of calibration curve are not calculated and the new approaching method use the coefficient of variation of sensitivity by linearization, this new method is simple, easy, convenient and statistically significant. In future, many chemical analysts will expect to applicate and routinely use this method in the all quantitative analysis.

산통 (분만 진통) 중 자궁경부 부종으로 인한 3기 골반장기탈출

한경희 ( Kyung Hee Han ),신재준 ( Jae Jun Shin ),신미선 ( Mi Sun Shin ),김병재 ( Byoung Jae Kim ),황규리 ( Kyu Ri Hwang ),전혜원 ( Hye Won Jun ),배광범 ( Kwang Bum Bae ) 대한산부인과학회 2010 Obstetrics & Gynecology Science Vol.53 No.8

Pelvic organ prolapse complicating pregnancy is a rare clinical condition and its incidence is one in 10,000~15,000 deliveries. It is associated with multiparity, low socioeconomic status, inadequate perinatal care, maternal malnutrition, previous abdominal surgery, and weakness of pelvic muscular and connective tissue. It can cause cervical dystocia, which leads to cervical laceration, uterine rupture, maternal and fetal death. We experienced a case, first in Korea, of cervical swelling that developed during labor, prolapsed beyond the vaginal introitus and thus obstructed the birth canal. The patient underwent cesarean section and subsequently received MgSO4 topical therapy and resulted in complete resolution. We report this case with a brief review of literature.

경계성 투명세포섬유선종

김수아 ( Su Ah Kim ),정희정 ( Hee Jung Jung ),신미선 ( Mi Sun Shin ),김은나 ( Eun Na Kim ),김효진 ( Hyo Jin Kim ),박노현 ( Noh Hyun Park ) 대한산부인과학회 2010 Obstetrics & Gynecology Science Vol.53 No.8

Clear cell tumor of borderline malignancy has been reported to account for 5 to 8% of all clear cell neoplasms, and <1% of borderline malignancies of the ovary. Borderline clear cell fibroadenoma with or without microinvasion mostly occurs in women with middle age, and the presenting symptoms associated with this tumor are non-specific. The clinico-pathologic features of borderline clear cell fibroadenoma are not well known because of its rarity. Furthermore, there is no consensus for treating the disease. Thus, we report a case of borderline clear cell fibroadenoma presenting as ovarian fibroadenoma with a review of literature.