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( Hyun Su Baek ),( Hye Sung Lee ),( Bok Joo Kim ),( In Kyo Chung ),( Chul Hoon Kim ),( Sun Mi Jin ),( Hie Sung Hwang ),( Sang Hun Shin2 ) 한국조직공학·재생의학회 2011 조직공학과 재생의학 Vol.8 No.6
The objective of this study was to evaluate platelet-rich fibrin (PRF)’s effectiveness in repairing articular disc defect in the temporomandibular joint (TMJ) of rabbits. Eight rabbits were divided into four groups of two rabbits each, corresponding to groups A, B, C, and D. Both TMJs of all of the rabbits were used in the experiments: the right joints comprised the experimental groups, and the left ones, the control groups. The disc defect was circular and 2 mm in diameter. In the experimental groups, the PRF was compressed into the defect, whereas the control group defects were left untreated. A, B, C, and D groups were sacrificed at the 1st, 2nd, 4th and 6th weeks, respectively. The defects of each control group exhibited no specific changes. Contrastingly, in each experimental group, there was an increased number of chondroblasts at the margins of the defects, along with accelerated cell differentiation and a columnar cell arrangement observable at the time of cell differentiation. The experimental groups showed inflammatory cell infiltrations and fibrosis by the 1st week, maturation of chondrocytes by the 2nd week, and proliferation by the 4th week, after which the defects began to be filled with chondrocytes, a process that was complete after the 6th week. In the histological evaluation (H-E), the experimental groups showed significant increases of chondroblasts after the 2nd and 4th weeks, as well as regular columns of chondrocyte arrays observable during cell division. After 6 weeks, the defects were filled with chondrocytes.
실용음악 전공 학생들의 발성치료 전후 성대 및 음성 특성 비교
황연신,심미란,김철준,최용석,김상연,최찬호,선동일,Hwang, Yeon Shin,Shim, Mi Ran,Kim, Chul Jun,Choi, Yong Suk,Kim, Sang Yeon,Choi, Chan Ho,Sun, Dong Il 대한후두음성언어의학회 2016 대한후두음성언어의학회지 Vol.27 No.2
Background and Objectives : Many students major in applied music singing have various difficulties in phonation when they sing or perform. But the studies about this cause are lack. The purpose of this study is whether singing voice therapy based on vocal music is effective or not to applied music singing students that have difficulties in phonation. Materials and Methods : Singing voice therapy program had been done to 8 students major in applied music singing during 7 weeks. We did laryngeal stroboscope, perceptual, acoustic and aerodynamic examination before and after singing voice therapy to this students. And we studied post examination results have differences or improvements compared to pre examination results. Results : Four male students don't have effective improvement after singing voice therapy but they shows slight improvement in aerodynamic examination values compared to pre examination values. Four female students shows improvement in aerodynamic examination values and pitch range increasing. Above all, one student's vocal nodules disappeared after singing voice therapy. Conclusion : Singing voice therapy based on music singing is very effective to the students major in applied music singing. Above all, their curriculum in applied music singing should include phonation training based on music singing before training perform and technic practices.
<SUP>18</SUP>F-FDG PET-CT에서 진단된 갑상선 우연종의 악성종양 발견율 및 특징
이강영,고건<SUP>1<.SUP>,김선국<SUP>1<.SUP>,고진철<SUP>1<.SUP>,김행수,최상용,박신희,박용휘<SUP>2<.SUP>,Kang Young Rhee,Gun Koh,<SUP>1<.SUP>,Sun Kuk Kim,<SUP>1<.SUP>,Jin Chul Koh,<SUP>1<.SUP>,Haeng Soo Kim,Sang Yong Choi,Shin 대한갑상선-내분비외과학회 2008 The Koreran journal of Endocrine Surgery Vol.8 No.1
<B>Purpose: </B>PET-CT is often used to differentiate benign or malignant thyroid incidentalomas. In this retrospective study, we evaluated whether the <SUP>18</SUP>F-FDG uptake pattern and PET-CT findings improved accuracy over the standardized uptake value (SUV). <B>Methods:</B> <SUP>18</SUP>F-FDG PET-CT was performed on 2,178 subjects from August, 2004, to October, 2007, in Sung-ae Hospital. PET-CT was performed on 806 patients (37%) with suspected or known nonthyroidal cancer and 1,372 healthy subjects (63%) without a previous history of cancer. We investigated the clinical characteristics of patients, history, standardized uptake value (SUV), ultrasonography, and hormone levels in blood. Thyroidal cancer was confirmed by ultrasonography-guided fine needle aspiration and pathology after thyroid operation. <B>Results:</B> The prevalence of focal thyroid lesions on PET-CT was 8.8% (191/2178). Thyroid cancer confirmation was 7.9% (15/191). The maximum SUV of malignant thyroid lesions were significantly higher than that of benign lesions (7.00±3.08 vs. 4.49±1.84, P<0.001). <B>Conclusion:</B> PET-CT image interpretation that includes 18F-FDG uptake and SUV is better than PET-CT alone for differentiating benign and malignant lesions. Thyroid cancer risk increases as SUVmax levels increase. <B>(Ko</B><B></B><B>rean J Endocrine Surg 2008;8:38-42)</B>
( Sung Soo La ),( Dong Woo Kim ),( Ki Chul Shin ),( Se Young Yun ),( Suk Bae Kim ),( Jung Eun Shin ),( Hong Ja Kim ),( Il Han Song ) 대한소화기학회 2007 SIDDS Vol.9 No.-
Background/Aims: Serum alanine aminotransferase (ALT) activity, reflecting the degree of hepatic necroinflammation, is one of the most frequently measured liver tests in persons who are suspected to have liver disease. But current upper limit of normal (ULN) of ALT, 40 IU/L, often can not detect the subclinical liver disease with minimal to mild inflammation. We, therefore, evaluated the ULN of ALT of healthy adult subjects in order to assess the necessity of revision for currently accepted reference range of ALT. Methods: 23,898 adult subjects who visited for medical examination at Health Promotion Center, Dankook University Hospital, from January 2005 to December 2006, were retrospectively enrolled in the present study. We excluded the adults who had HBsAg, anti-HCV, anti-HIV, VDRL, history of current medication and alcohol consumption more than 40 g/week, and high risks for liver disease defined as BMI more than 23 kg/m2, serum cholesterol level more than 240 mg/dL, triglyceride more than 200 mg/dL, fasting glucose more than 115 mg/dL, and ultrasonographic liver diseases including fatty change. We defined updated ULN of ALT as activity below 95th percentile for each gender. Results: 5,994 adults (2,983 men, 2,961 women) met the inclusion criteria of this present study. Updated ULN of ALT levels were 38 IU/L in men and 25 IU/L in women. This ALT activity showed a tendency to increase according to age increase, and revealed positive correlation with the ultrasonographic degree of fatty liver. Serum ALT activity below 95th percentile of HBsAg or anti-HCV positive carrier subjects, whose medical conditions were equal to those of enrolled healthy subjects in aspect of biochemical and ultrasonographic finding, were 75 IU/L and 77 IU/L, respectively. Conclusions: Updated ULN of ALT was lower than currently accepted ALT activity. Considering age and gender, current reference range of serum ALT level should be revised for the detection of subclinical liver diseases such as fatty liver.
Elevated CO<sub>2</sub> and Temperature Effects on the Incidence of Four Major Chili Pepper Diseases
Shin, Jeong-Wook,Yun, Sung-Chul The Korean Society of Plant Pathology 2010 Plant Pathology Journal Vol.26 No.2
Four major diseases of chili pepper including two fungal diseases, anthracnose (Colletotrichum acutatum) and Phytophthora blight (Phytophthora capsici), and two bacterial diseases, bacterial wilt (Ralstonia solanacearum) and bacterial spot (Xanthomonas campestris pv. vesicatoria), were investigated under future climate-change condition treatments in growth chambers. Treatments with elevated $CO_2$ and temperature were maintained at $720ppm{\pm}20ppm$ $CO_2$ and $30^{\circ}C{\pm}0.5^{\circ}C$, whereas ambient conditions were maintained at $420ppm{\pm}20ppm$ $CO_2$ and $25^{\circ}C{\pm}0.5^{\circ}C$. Pepper seedlings or fruits were infected with each pathogen, and then the disease progress was evaluated in the growth chambers. According to paired t-test analyses, bacterial wilt and spot diseases significantly increased by 24% (p=0.008) and 25% (p=0.016), respectively, with elevated $CO_2$ and temperature conditions. On the other hand, neither Phytophthora blight (p=0.906) nor anthracnose (p=0.125) was statistically significant. The elevated $CO_2$ and temperature accelerated the progress of bacterial wilt by two days and bacterial spot by one day compared to the ambient treatment. Temperature regime studies of the diseases without changes in $CO_2$ confirmed that the accelerated bacterial disease progress was mainly due to the increased temperature rather than the elevated $CO_2$ conditions.
Classification of maturity group in 100 Korea soybean varieties
Sang-Ouk Shin,Tae-Joung Ha,Seong-Hyu Shin,Sea-Gyu Lim,Kyung-Jin Choi,In-Yeul Baek,Keum-Yong Park,Sang-Chul Lee 한국작물학회 2008 한국작물학회 학술발표대회 논문집 Vol.2008 No.10
This study was carried out to classify Korean soybean varieties based maturity group. One hundred (100) domestic soybean varieties ( 56 for fermentation, 26 for sprouting, 17 for mixed with rice) were used and seeding date was scheduled at April 30. This experiment carried out at Yeongnam Agricultural Research Institute, NICE situated at Miryang from 2005 to 2006. Classification of maturity group in 100 soybeans was followed by Kweon et al's method (1974) The main difference between this experiment and that of Kweon et al's method (1974) were the planting region and planting date. This experiment was conducted on April 30 at Miryang while Kweon et al. was conducted on May 23 in Seoul. Results of maturity grouping of Korean soybean varieties showed that Keunol, which was represented among 3 varieties, belonged to Group 0, Seonnok and Danmi in GroupⅡ, Shinrok in GroupⅢ, Seonyu, represented by 17 cultivars, in GroupⅣ, Taekwang, having 44 cultivars in GroupⅤ, Daewon, represented by 25 cultivars in GroupⅥ, and Kwangdu and Keumdu in GroupⅦ.
P164 : Treatment of digital mucous cysts by sodium tetradecyl sulfate sclerotherapy
( Chul Woo Kim ),( So Eun Park ),( Jin Yong Lee ),( Soo Jung Shin ),( Chang Sun Yoo ),( Sang Seok Kim ) 대한피부과학회 2013 대한피부과학회 학술발표대회집 Vol.65 No.2
Background: There are various treatment modalities for digital mucous cysts(DMCs), among which sclerotherapy has been reported as an effective alternative treatment. Here, we report our experience of intralesional sclerotherapy with sodium tetradecyl sulfate(STS) for treatment of DMCs. Objectives: The purpose of this study is to assess the efficacy and safety of sclerotherapy with STS in treating DMCs. Methods: We performed the treatment for 15 patients(2 patients with multiple lesions) with 18 DMCs.(one patient with 3 lesions and the other with 2 lesions). 1%-3% STS 0.2-0.5ml was injected into a lesion at each session, and repeated every 4 weeks if necessary. Changes in lesions and adverse reactions were recorded, and the therapeutic efficacy was evaluated. Results: The treatment was beneficial in 14(77.8%) of 18 lesions. Lesions exhibited complete resolution after a mean of 2.4 injections. Recurrences were observed in 2 patients(one patient in toe and the other in finger), and 2 patients(all in fingers) did not respond well to treatment. No patient reported any major adverse effects. However, 3 patients experienced transient pain and 5 patients experienced erosions and superficial skin necrosis at the injection site, which resolved within a few days. Conclusion: Based on the results of our study, treatment was well tolerated with few side effects, and resulted in high cure rate. Therefore, we believe that sclerotherapy with STS is a promising alternative treatment for DMCs.
Alcohol and Liver Living Donor Liver Transplantation For Patients With Alcoholic Liver Disease
( Shin Hwang ),( Sung Gyu Lee ),( Chul Soo Ahn ),( Ki Hun Kim ),( Deok Bog Moon ),( Tae Yong Ha ),( Gi Won Song ),( Dong Hwang Jung ),( Je Ho Ryu ),( Jung Ik Park ),( Hyo Jun Lee ),( Kyoung Hoon Ko ) 대한소화기학회 2007 SIDDS Vol.9 No.-
Background/Aims: Since most transplantation studies for alcoholic liver disease (ALD) were performed on deceased donor liver transplantation, little was known following living donor liver transplantation (LDLT). Methods: The clinical outcome of 18 ALD patients who underwent LDLT from Febraury 1997 to December 2004 in a large-volume liver transplantation center was assessed retrospectively. Results: The model for end-stage liver disease score was 23±11, and mean pretransplant abstinence period was 16±13 months, with 14 (77.8%) patients being abstinent for at least 6 months. Graft types were right lobe grafts in 11, left lobe grafts in 2 and dual grafts in 5. Graft to recipient body weight ratio was 0.94±0.16. The relapse rates in patients who did and did not maintain 6 months of abstinence were 7.1% and 50%, respectively (p=0.097). Younger recipient age was a significant risk factor for alcohol relapse (p=0.027). Five recipients with antibody to hepatitis B surface antigen (HBsAg) received core antibody-positive liver graft, but two of them showed positive HBsAg seroconversion. Overall 5-year patient survival rate following LDLT was 87.8%, with a 5-year relapse rate of 16.7%. Conclusions: Pretransplant abstinence for 6 months appears to be benefical for preventing posttransplant relapse. Life-long prophylactic measure should be followed after use of anti-HBc-positive liver grafts regardless of hepatitis B viral marker status of the recipient.