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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>
Sang-Uk Han,Bo Wang,손상용,Hojung Shin,Chul Kyu Roh,허훈 대한위암학회 2019 Journal of gastric cancer Vol.19 No.4
Purpose: Although linear-shaped gastroduodenostomy (LSGD) was reported to be a feasible and reliable method of Billroth I anastomosis in patients undergoing totally laparoscopic distal gastrectomy (TLDG), the feasibility of LSGD for patients undergoing totally robotic distal gastrectomy (TRDG) has not been determined. This study compared the feasibility of LSGD in patients undergoing TRDG and TLDG. Materials and Methods: All c: onsecutive patients who underwent LSGD after distal gastrectomy for gastric cancer between January 2009 and December 2017 were analyzed retrospectively. Propensity score matching (PSM) analysis was performed to reduce the selection bias between TRDG and TLDG. Short-term outcomes, functional outcomes, learning curve, and risk factors for postoperative complications were analyzed. Results: This analysis included 414 patients, of whom 275 underwent laparoscopy and 139 underwent robotic surgery. PSM analysis showed that operation time was significantly longer (163.5 vs. 132.1 minutes, P<0.001) and postoperative hospital stay significantly shorter (6.2 vs. 7.5 days, P<0.003) in patients who underwent TRDG than in patients who underwent TLDG. Operation time was the independent risk factor for LSGD after intracorporeal gastroduodenostomy. Cumulative sum analysis showed no definitive turning point in the TRDG learning curve. Long-term endoscopic findings revealed similar results in the two groups, but bile reflux at 5 years showed significantly better improvement in the TLDG group than in the TRDG group (P=0.016). Conclusions: LSGD is feasible in TRDG, with short-term and long-term outcomes comparable to that in TLDG. LSGD may be a good option for intracorporeal Billroth I anastomosis in patients undergoing TRDG.
SHIN, Hyoseung,KWON, Oh Sang,WON, Chong Hyun,KIM, Beom Joon,LEE, Yang Won,CHOE, Yong Beom,AHN, Kyu Joong,EUN, Hee Chul Wiley (Blackwell Publishing) 2009 The Journal of dermatology Vol.36 No.3
<P>Previous studies have shown that topical steroid and shampoo containing zinc pyrithione provide clinical benefits for treatment of scalp seborrheic dermatitis. But the clinical efficacy of topical tacrolimus, a newly developed calcineurin inhibitor on seborrheic dermatitis, is not well investigated yet. We wanted to compare the clinical efficacy of topical tacrolimus with that of conventional treatment (zinc pyrithione shampoo and topical betamethasone) for treatment of seborrheic dermatitis of the scalp. Patients with seborrheic dermatitis of the scalp were randomly allocated to receive topical betamethasone, topical tacrolimus or zinc pyrithione shampoo. Some patients were instructed to continue the treatments for 8 weeks and the others to discontinue the treatments at week 4. We evaluated the efficacy using a clinical severity score, dandruff score and sebum secretion at baseline, week 4 and week 8. All treatment groups showed significant improvements in clinical assessment after 4 weeks. While the patients treated by zinc pyrithione improved continuously even after cessation of the treatment, the patients treated by betamethasone lotion or tacrolimus ointment were aggravated clinically. Topical tacrolimus was as effective as topical betamethasone, and showed more prolonged remission than topical betamethasone. To treat seborrheic dermatitis of the scalp, we think that the combination therapy of topical steroid or topical tacrolimus, and zinc pyrithione is recommended.</P>
Association of ZDHHC8 polymorphisms with smooth pursuit eye movement abnormality
Shin, Hyoung Doo,Park, Byung Lae,Bae, Joon Seol,Park, Tae Joon,Chun, Ji Yong,Park, Chul Soo,Sohn, Jin-Wook,Kim, Bong-Jo,Kang, Yeo-Hwa,Kim, Jae Won,Kim, Ki-Hoon,Shin, Tae-Min,Woo, Sung-Il Wiley Subscription Services, Inc., A Wiley Company 2010 American Journal of Medical Genetics. Part B Vol.b153 No.6
<P>The zinc finger DHHC domain-containing protein 8 (ZDHHC8) is located in the 22q11 microdeletion region and may contribute to the behavioral deficit associated with 22q11 deletion syndrome. Although polymorphisms of ZDHHC8 have been reported to be associated with the risk of schizophrenia, those associations are still controversial. This study was performed to validate the genetic association of ZDHHC8 polymorphisms with the risk of schizophrenia, and also to scrutinize the association with smooth pursuit eye movement (SPEM) abnormality in a Korean population. Five SNPs of ZDHHC8 were genotyped by TaqMan assay. Their genetic effects on the risk of schizophrenia were analyzed in 354 patients and 396 controls using allele-based χ<SUP>2</SUP> analyses. Association of ZDHHC8 polymorphisms with SPEM abnormality among 166 schizophrenic patients were analyzed using multiple regressions. No ZDHHC8 polymorphisms were found to be associated with the risk of schizophrenia. However, four SNPs and one haplotype (ht4) were strongly associated with the risk of SPEM abnormality even after multiple correction (P = 0.00005–0.0007, P<SUP>corr</SUP> = 0.0001–0.002). The results of the present study provide the first evidence that ZDHHC8 on the 22q11 locus might have influence on SPEM function of schizophrenia patients in a Korean population and may provide a new clue for understanding differential effects of candidate genes in schizophrenia. © 2010 Wiley-Liss, Inc.</P>
Analysis of Pollutant Load Characteristics from Small Agricultural Watershed using ESTIMATOR Model
Shin, Yong-Chul,Heo, Sung-Gu,Lim, Kyoung-Jae,Choi, Joong-Dae 강원대학교 부속 환경연구소 2005 Journal of the Environment Vol.2 No.-
To develp effective management pracrice for water quality improvement, pollutant loads must be first estimated. In many studies, the Numeric Inerfration (NI) method has been used because of ots ease-of-application, irrespective of the total number of samples collected for each storm event. Thus, there has been needs for better pollutant load estimation with limited number of water quality samples. Loads of NO_(3)-N,T-N, and T-P using NI method and ESTIMATOR were 12.85kg/ha, 45.92kg/ha, 1.887kg/ha, and 11.93kg/ha, 43.02kg/ha, 1.650kg/ha, respectively. The estimated loads using the ESTIMATOR medel are lower than those using NI method by 86%.94%,and 87%.
Shin, Won Suk,Joo, Moon-Kyu,Kim, Sung Chul,Park, Sung-Min,Jin, Sung-Ho,Shim, Jong-Min,Lee, Jin Kook,Lee, Jae Wook,Gal, Yeong-Soon,Jenekhe, Samson A. Royal Society of Chemistry 2006 Journal of materials chemistry Vol.16 No.42
<P>Five new thermally robust electroluminescent arylenevinylene conjugated polymers, including poly[3′,6′-bis(3,7-dimethyloctyloxy)-9,9′-spirobifluorenyl-2,7-vinylene] <B>[(OC<SUB>10</SUB>)<SUB>2</SUB>-Spiro-PFV]</B> and poly[{3′,6′-bis(3,7-dimethyloctyloxy)-9,9′-spirobifluorenyl-2,7-vinylene}-<I>co</I>-2-{methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene}] <B>[(OC<SUB>10</SUB>)<SUB>2</SUB>-Spiro-PFV-<I>co</I>-MEH-PPV]</B>, were synthesized and used to fabricate efficient light-emitting diodes (LEDs). The glass transition temperatures of the polymers were found to be higher than those of PPVs and PFs, and are in the range 170–222 °C. ITO/PEDOT/Polymer/LiF/Al LEDs containing the new polymers were found to have emission colors that vary from blue (467 nm) to yellow (587 nm) depending on the copolymer composition. The maximum brightness and luminance efficiency of these LEDs were found to be up to 4062 cd m<SUP>−2</SUP> and 1.79 cd A<SUP>−1</SUP> respectively.</P> <P>Graphic Abstract</P><P>Five new thermally robust electroluminescent arylenevinylene conjugated polymers, including <B>(OC<SUB>10</SUB>)<SUB>2</SUB>-Spiro-PFV</B> and <B>(OC<SUB>10</SUB>)<SUB>2</SUB>-Spiro-PFV-<I>co</I>-MEH-PPV</B>, were synthesized and used to fabricate efficient light-emitting diodes (LEDs). <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=b607944j'> </P>