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Molecular analysis of TMC1 gene in the Korean patients with nonsyndromic hearing loss
Hyo‐Kyeong Kim,Yee Hyuk Kim,사공보름,권태준,오세경,Hye‐Jin Lee,Kyu‐Yup Lee,이상흔,김언경 한국유전학회 2011 Genes & Genomics Vol.33 No.2
Hereditary nonsyndromic hearing loss (NSHL) is a highly heterogeneous disorder in humans. Mutations of the transmembrane channel‐like (TMC1) gene have been identified as the genetic cause for both autosomal recessive (DFNB7/11)and autosomal dominant (DFNA36) nonsyndromic hearing loss. To evaluate the spectrum and frequency of mutation(s)caused by TMC1 gene in the Korean population, we have performed sequencing analysis of the PCR products amplified from genomic DNA of each proband in 193 unrelated families showing 30 autosomal dominant and 163 autosomal recessive inheritance patterns. As a result, we identified eight different novel sequence variations for the first time in this study,respectively. However, none of these showed co‐segregation of phenotype in the families. Therefore, our study suggests that the TMC1 gene is not the cause of nonsyndromic hearing loss in the Korean population.
알코올의 섭취가 흰쥐의 혈액과 간의 지질대사에 미치는 영향
이명숙,김영연,김효숙,김매하,전진순,서진숙,송선미,양영재,윤원손,이미라,이효영,정승현 誠信女子大學校 生活文化硏究所 2004 生活文化硏究 Vol.18 No.-
To investigate the effects of ethanol on the lipid metabolism in blood and liver, twenty one male Sprague Dawley rats had orally taken the 25% alcohol and 50% alcohol by 5g per Kg of weight during 3 weeks after the adjusting period. For the energy balance, 85% sucrose and 45% sucrose was added in control group and 25% alcohol group each. The weight was reduced by alcohol treatment according to the levels, otherwise the weight of liver and heart was little increased in alcohol groups rather than in control without significance. Moreover, RBC, WBC, hemoglobin and hematocrit were increased by alcohol treatment according to the levels without significance. Otherwise, adjusted bilirubin levels by 100g of weight was significantly increased by alcohol treatment dose dependently. Alcohol induced RBC degradation and increased circulated bilirubin because of liver damage. For blood lipid profiles, blood cholesterol was increased in 50% of alcohol group compared to that of 25% and control groups, otherwise, blood triglycerides (TG) was increased by 30% in 25% alcohol groups rather than in control but not significantly different. The hepatic lipid composition, cholesterol levels in alcohol treatment groups was lower than those in control. The hepatic TG was not influenced by alcohol treatment. The two reasons of decreasing hepatic lipids were suggested by 85% sucrose of control for energy balance more synthesized cholesterol and TG than those in 25 or 50% alcohol groups, and by cholesterol and TG could not be synthesized because of liver damage from alcohol.
복강경하 대장절제술을 시행 받는 환자에서 라모세트론과 온단세트론외 술 후 오심 및 구토 예방 효과 비교
김효중;어전영;어근무;어정한;엄세훈;조광래;김명훈 인제대학교 2011 仁濟醫學 Vol.32 No.-
Objectives : We evaluated the efficacy of ramosetron and ondansetron for preventing postoperative nausea and vomiting (PONV) in laparoscopic colectomy. Methods and Materials : Eighty patients who received laparoscopic colectomy were randomly divided into two groups: R group (ramosetron 0.1mg PO) and O group (ondansetron 4mg twice IV). Injection or oral medication was administered before the induction of anesthesia in each group. Injection was administered at the end of surgery in O group. General anesthesia was induced using propofol and rocuronium, and maintained with sevoflurane, remifentanil and air (FiO2 0.5), We investigated the incidences of PONV in each group by the Rhodes index of nausea, vomiting and retching (RINVR) at postoperative 6 and 24 hours. Results : The incidence of PONV was not different between group at each time points after surgery (at postoperative 6 hours: 20% in group R, 17.5% in group 0, at postoperative 24 hours; 12.5% in group R, 7.5% in group 0). There was no difference in the severity of PONV, satisfaction, rescue drug usage. Conclusion : Prophylactic therapy with ramosetron is as effective as conventional prophylactic therapy with ondansetron for preventing PONV in general anesthesia for laparoscopic colectomy.
박사영,이나영,이효진,이선영,최진혁,이순남,심강섭,성순희,한운섭 梨花女子大學校 醫科大學 醫科學硏究所 1996 EMJ (Ewha medical journal) Vol.19 No.3
Multiple primary cancer means that more that two cancers occur independently in an individual. Recently, the incidence of multiple primary cancer has increased with lengthened survival, of cancer patients, development of new diagnostic technique and increased clinical evaluation. We report a patient who had adenocarcinoma of stomach combined with squamous cell carcinoma of esophagus simultaneously.
Validation of the oxford classification of iga nephropathy: A Single-Center Study in Korean Adults
( Ho Young Lee ),( Sul Hee Yi ),( Mi Seon Seo ),( Jin Nam Hyun ),( Jin Seok Jeon ),( Hyunjin Noh ),( Dong Cheol Han ),( Seung Duk Hwang ),( So Young Jin ),( Soon Hyo Kwon ) 대한내과학회 2012 The Korean Journal of Internal Medicine Vol.27 No.3
Background/Aims: The recently published Oxford classification of IgA nephropathy (IgAN) proposed a split system for histological grading, based on prognostic pathological features. This new classification system must be validated in a variety of cohorts. We investigated whether these pathological features were applicable to an adult Korean population. Methods: In total, 69 adult Korean patients with IgAN were analyzed using the Oxford classification system at Soonchunhyang University Hospital, Seoul, Korea. All cases were categorized according to Lee`s classification. Renal biopsies from all patients were scored by a pathologist who was blinded to the clinical data for pathological variables. Inclusion criteria were age greater than 18 years and at least 36 months of follow-up. We excluded cases with secondary IgAN, diabetic nephropathy combined other glomerulopathies, less than 36 months of follow-up, and those that progressed rapidly. Results: The median age of the patients was 34 years (range, 27 to 45). Mean arterial blood pressure was 97 ± 10 mmHg at the time of biopsy. The median follow-up period was 85 months (range, 60 to 114). Kaplan-Meier analysis showed significant prognostic predictions for M, E, and T lesions. A Cox proportional hazard regression analysis also revealed prognostic predictions for E and T lesions. Conclusions: Using the Oxford classification in IgAN, E, and T lesions predicted renal outcome in Korean adults after taking clinical variables into account.
Bupivacaine과 ropivacaine이 Xenopus oocyte에 발현된 HERG 전류에 미치는 영향
김국성,이규승,김효신,손숙진,이상도,김광진,전병화,김윤희,박진봉 충남대학교 의과대학 의학연구소 2003 충남의대잡지 Vol.30 No.1
Bupivacaine is an amide-type local anesthetic widely used for regional anesthesia. Ropivacaine is developed as a less cardiotoxic alternatives to bupivacaine. In the present study, we have analyzed the effects of bupivacaine and ropivacaine on HERG currents expressed in Xenopus oocytes. Bupivacaine and ropivacaine(3∼1,000μM) blocked HERG currents in a concentration dependent manner. EC_(50) was 26.1±3.1μM(n_(R) 0.65±0.04) and 43.5±7.9μM(n_(H) 0.99±0.13) in bupivacaine and ropivacaine, respectively. Bupivacaine and ropivacaine did not affect the activation and deactivation kinetics of HERG channels. However, the drugs decreased the slope conductance measured from fully activated current-voltage relationship curves. These results suggest that bupivacaine and ropivacaine have a similarinhibitory effect on HERG channels, which could be a possible cellular mechanism of LQT or ventricular arrythmia by the drugs.
이효진,홍재창 한밭대학교 산업과학기술연구소 2001 논문집 Vol.5 No.-
An experimental study has conducted to understand the characteristics of heat releasing system in which Micro-PCM(microencapsulated Phase Change Materials) slurry is adopted for its storage media mixed with distilled water. Tetradecane(C_14H_30, T_m=5.5℃) as a core, is encapsulated and covered with melamin. For the test, a storage tank, which is 10 ㎝ in diameter and 20 ㎝ of its length, is fabricated with bakelite insulated with glass fiber, 2 ㎝ thick, to protect its heat loss. In order to measure the temperature changes during the heat releasing, 9 T-type thermocouples are embedded at three places in the axial direction and three at radial direction. The size of particles is well-controlled under 10 ㎛ in the way of in-situ polymerization with melamine-formaldehyde resin. For the experiment, the concentrations of slurries are prepared for 20 wt%, 30 wt%, and 40 wt%. The results are compared with those of water and 100% tetradecane oil. MicroPCM slurries are required relatively longer period of time for their phase change than pure phase change materials. That is, the entrained MicroPCM particles control its heat transfer in terms of natural convection and conduction to them.