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증례 : 신장 ; 신이식 후 발생한 거대 세포바이러스 위장관염: 단일기관 경험 7예
전주현 ( Joo Hyun Chun ),현승혜 ( Seung Hyea Hyun ),최지영 ( Ji Young Choi ),조지형 ( Ji Hyung Cho ),박선희 ( Sun Hee Park ),김찬덕 ( Chan Duck Kim ),김용림 ( Yong Lim Kim ) 대한내과학회 2009 대한내과학회지 Vol.77 No.5S
저자들은 신이식 후 발생한 CMV 위장관염 7예를 보고하는 바이다. 환자들은 신이식 후 위장관 통증, 발열, 혈변 등 다양한 증상으로 내원하였고, CMV early antigenemia 및 내시경을 통해 CMV 위장관염을 진단받았다. 진단 후 ganciclovir 정주로 치료하였으며 이후 증세 호전을 보이고 CMV early antigenemia 음성이 확인되어 퇴원하였다. Here we present 7 cases of Cytomegalovirus (CMV) gastrointestinal infection following renal transplantation. Patients visited the clinic with variable symptoms, such as epigastric pain, fever, and melena. Detection of CMV early antigenemia and endoscopic biopsies were performed to diagnose CMV gastrointestinal infection. After diagnosis, patients were treated with Ganciclovir and their symptoms improved. We confirmed the negative conversion of CMV early antigenemia prior to discharge. (Korean J Med 77:S1263-S1267, 2009)
AI 번역기를 활용한 EFL 대학생 영작문 분석 및 지도 방안 연구 - EFL 영작문 코퍼스 분석 연구 -
전주현 ( Joo Hyun Chun ) 충남대학교 인문과학연구소 2023 인문학연구 Vol.62 No.4
본 연구는 디지털 플랫폼으로 급격하게 전환되는 EFL 대학생들의 영작문 수행 양상의 변화를 관찰할 수 있는 계기와 현 영작문 교수법에 관해 여러 교육적 시사점을 제시한다. 대학생들의 번역기 사용 실태를 조사한 후, 밀레니엄 세대에게 적합한 영작문 교수법의 필요성을 검토한다. AI 번역기를 도움으로 영작문을 수행한 학생들의 글을 코퍼스로 구성하여 분석한 후, AI 번역기를 활용한 영작문 교육 접근법 5단계 프레임을 체계적으로 고안한다. 이러한 교수법은 MZ 세대에게 학문적이고 완성도 높은 영작문 작성 전략을 지도하고자 AI 번역기의 한계점을 재고하고 번역기 활용 시, 영작문의 프리 에디팅(pre-editing)과 포스트 에디팅(post-editing) 기술 함양 필요성을 강조한다. 본 연구를 바탕으로 개발된 교수법은 학생들이 번역기를 과신하는 과오를 범하지 않고, 디지털 정보 문해력 역량을 갖출 뿐 아니라, AI 번역기가 발달한다고 하여도 학습자의 지속적인 영어 문장구조, 어휘, 용례 등에 관한 학습이 필요하다는 점을 논하는 동시에 시대에 부합된 교수법을 논의한다. This study examines significant changes in the patterns of English writing performance of EFL college students who are rapidly transitioning to digital platforms. By observing the usage patterns of translators, this research presents meaningful results suggesting that a considerable shift is required for English writing pedagogical approaches into ones suitable for the millennial generation. After analyzing the corpus of writings written with the help of an AI translator, a five-stage frame for English writing instruction methodology is designed and suggested. Hence, learners can have an opportunity to reconsider the limitations of AI translators and cultivate pre-editing and post-editing skills to improve the completeness of English writing. To sum up, this study demonstrates essential pedagogical insights for educators and recommends that students engage in consistent English practice alongside advanced tools like AI translators to develop their language proficiency.
전주현 ( Chun Joo Hyun ),홍성심 ( Hong Sungshim ) 한국현대영어영문학회 2017 현대영어영문학 Vol.61 No.4
This study presents and investigates the roles and contributions of a college-level English Clinic Center (hereafter, ECC) to college English education. In particular, in an EFL context, adult English education often lacks sufficient inputs toward the learners. Thus, it is argued that an establishment such as an ECC would be an excellent choice for adult language learners. This paper consists of two parts: first it introduces some basics on the operation of English clinic which was established at a university as an effort to assist students in improving their English academic writing skills. The motivation for such an establishment was to promote close contact between learners and native speakers of English at a person-to-person interaction level. Secondly, the ECC’s roles in college-level English education as a means of remedial resources is to be considered, arriving at conclusions and suggestions for their operational methodologies. Through reviewing and analyzing the operating results and demographic data and satisfaction survey derived from the center, it is suggested in this paper that numerous challenges for learning English in Korean academic environments can be fought off with the help of an ECC. (Hanbat National University, Chungnam National University)
척추-경막외 병용마취로 제왕절개술시 산소투여방법에 따른 태아의 산소화
천은희 ( Eun Hee Chun ),김종학 ( Jong Hak Kim ),김윤진 ( Youn Jin Kim ),백희정 ( Hee Jung Baik ),전주현 ( Joo Hyun Jun ) 대한마취과학회 2009 Korean Journal of Anesthesiology Vol.57 No.6
Background: During cesarean section under regional anesthesia, it is current practice to provide the parturient with a source of supplemental oxygen. We compared the effect of high flow oxygen by mask with that of low flow oxygen by nasal prongs. Methods: Fifty eight parturients presenting for elective cesarean section under combined spinal-epidural anesthesia were randomly assigned to one of the three groups to be given either oxygen 4 L/min by mask, oxygen 8 L/min by mask or oxygen 2 L/min by nasal prongs. Umbilical arterial and venous blood samples were taken and analysed immediately after delivery. Results: There were no significant differences in the umbilical arterial or venous pH, partial pressure of oxygen and partial pressure of carbon dioxide among the three groups. In neonatal outcome, there were no differences in Apgar scores. Conclusions: It makes no differences whether the parturients received supplemental oxygen by nasal prongs or simple face mask during cesarean section under combined spinal-epidural anesthesia. (Korean J Anesthesiol 2009; 57: 709∼13)
서혜진 ( Hye Jin Seo ),현승혜 ( Seung Hyea Hyun ),김건현 ( Gun Hyun Kim ),전주현 ( Joo Hyun Chun ),최지영 ( Ji Young Choi ),조지형 ( Ji Hyung Cho ),김찬덕 ( Chan Duck Kim ),박선희 ( Sun Hee Park ),김용림 ( Yong Lim Kim ) 대한내과학회 2010 대한내과학회지 Vol.79 No.3
Background/Aims: Continuous ambulatory peritoneal dialysis (CAPD) is an established treatment in patients with end-stage renal disease (ESRD), and innovations in the connection system have improved the survival of peritoneal dialysis patients over the last two decades. We investigated the outcome of CAPD over a 15-year period at our institution. Methods: Patients who underwent peritoneal dialysis since 1994 were recruited retrospectively. Patients younger than 15 years at the initiation of CAPD and those who had less than 1 month of follow-up or missing data were excluded. The technique survival rate and causes of technique failure were evaluated. Results: In all, 608 CAPD patients (342 males, 56.3%) were analyzed using the Kaplan-Meier method and log-rank test. The mean age at the start of CAPD was 50.7±15.1 years and the mean duration of CAPD was 50.2±41.5 months. The most common primary renal disease was diabetes (39.6%), followed by chronic glomerulonephritis (37.2%) and hypertension (13.0%). The 1-, 3-, 5-, and 10-year death-censored technique survival rates were 97.3, 91.7, 82.8, and 67.5%, respectively. Sex or diabetic status did not affect the technique survival rate. Patients younger than 60 years at the start of CAPD had a better technique survival than older patients (p=0.005). The main cause of technique failure was peritonitis (71.6%), followed by mechanical malfunction (10.5%), ultrafiltration failure (7.4%), and inadequate dialysis (6.3%). Conclusions: Complicating peritonitis was the most common cause of CAPD technique failure at our center. To reduce the technique failure in high-risk groups, more intensive management is needed. (Korean J Med 79:258-262, 2010)
조지형 ( Ji Hyung Cho ),류혜명 ( Hye Myung Ryu ),진미경 ( Mi Kyung Jin ),전주현 ( Joo Hyun Chun ),현승혜 ( Seung Hyea Hyun ),최지영 ( Ji Young Choi ),허인경 ( In Kyong Hur ),이은영 ( Eun Young Lee ),박선희 ( Sun Hee Park ),김용림 대한신장학회 2008 Kidney Research and Clinical Practice Vol.27 No.4
목적: 염증반응과 섬유화에 관여하는 Transforming growth factor-β1 (TGF-β1)와 이식신에 대한 cytoprotection에 관여하는 vascular endothelial growth factor (VEGF)는 만성 이식신 신병증 (CAN)의 발생과 연관이 있을 것으로 추측되어 왔다. 이에 저자들은 한국인 신이식 수혜자를 대상으로 TGF-β1 및 VEGF 유전자 SNP과 이식신 생존율 및 CAN과의 상관관계에 대해 조사하였다. 방법: 경북대학교병원에서 신이식을 시행한 환자 중 유전자 분석에 동의한 221명과 건강한 대조군 148명을 대상으로 TGF-β1 유전자의 C-509T 및 T869C, VEGF 유전자에 있는 C-2578A, C405G의 유전자형을 분석하였다. 신이식 후 CAN이나 만성 calcineurin inhibitor 신독성으로 진단된 경우를 신병증군 (n=21)으로 그렇지 않은 경우를 정상 이식군 (n=200)으로 분류하였다. 결과: 신이식 환자군과 정상 대조군에서 확인된 TGF-β1 (C-509T, T869C) 및 VEGF 유전자의 SNP (C- 2578A, C405G)의 유전자형의 빈도는 Hardy-Weinberg 평형에 따른 기대빈도와 유의한 차이가 없었고, 신이식 환자군과 정상 대조군에 있어 TGF-β1 및 VEGF 유전자 SNP의 유전자형과 대립형질의 빈도에는 유의한 차이가 없었다. TGF-β1의 C-509T와 T869C 및 VEGF의 C-2578A와 C405G는 강한 유전적 상관 관계를 보였고 (D`=0.78-0.98), 두 군 간 각각의 일배체형 간의 빈도 차이는 없었다. 전체 신이식 환자를 대상으로 TGF-β1 및 VEGF 유전자 SNP의 유전자형에 따라 두 군으로 나누어 Kaplan-Meier 생존분석을 시행한 결과 이식신 생존율은 유의한 차이가 없었고, 저농도 혹은 고농도의 cytokine 생산과 관련된 유전자형에 따른 이식신 생존율도 각 cytokine 모두 유사하였다. 결론: 본 연구에서 조사한 TGF-β1 및 VEGF 유전자 SNP은 한국인 신이식 수혜자에서 이식신 생존 또는 만성 이식신 신병증 발생 여부에 따라 차이를 보이지 않았다. Purpose: Transforming growth factor-β1 (TGF-β1) has been associated with the promotion of renal allograft interstitial fibrosis and thereby chronic allograft nephropathy (CAN). Vascular endothelial growth factor (VEGF) has been shown to contribute to cytoprotection of the graft after kidney transplantation. We investigated the influence of single nucleotide polymorphisms (SNPs) of the TGF-β1 (C-509T and T869C) and the VEGF gene (C-2578A and C405G) on graft survival and the development of CAN. Methods: Genotyping was carried out using a real-time polymerase chain reaction which was performed on the LightCycler480 in 221 Korean renal transplant recipients and 148 healthy controls. According to the presence of CAN or chronic calcineurin inhibitor nephrotoxicity, the recipients were separated into the CAN (n=21) and the No CAN (n=200) groups. Results: The genotype frequencies of the SNPs were in Hardy-Weinberg equilibrium. The distributions of genotypes and alleles did not differ between recipients and controls. No significant differences were observed in the genotype distributions and allele frequencies between the CAN and the No CAN groups. The frequencies of haplotypes were not significantly different between the two groups, either. There were no statistically significant effects of TGF-β1 and VEGF gene polymorphisms on graft survival. Conclusion: This study did not show any statistically significant effects of four selected SNPs of the TGF-β1 and the VEGF genes on the development of CAN and graft survival in Korean renal transplant recipients.
복막투석 동물모델에서 Adenoviral vector를 이용한 Bone Morphogenic Protein-7 유전자 치료가 복막섬유화에 미치는 영향
최지영 ( Ji Young Choi ),진미경 ( Mi Kyung Jin ),전주현 ( Joo Hyun Chun ),현승혜 ( Seung Hyea Hyun ),최희정 ( Hee Jeong Choi ),최혁준 ( Hyuk Joon Choi ),조지형 ( Ji Hyung Cho ),김미형 ( Mi Hyung Kim ),류혜명 ( Hye Myung Ryu ),오 대한신장학회 2008 Kidney Research and Clinical Practice Vol.27 No.4
Purpose: TGF-β-induced epithelial-mesenchymal transition (EMT) is associated with peritoneal fibrosis during PD. We conducted this study to evaluate the effect of BMP-7 adenoviral gene transfer on the functional and structural changes of peritoneum and whether it is associated with peritoneal EMT using an animal PD model. Methods: Forty Sprague-Dawley rats were divided into five groups; Control (C, n=8), Dialysis (D, n= 8), Rest (R, n=8), BMP-7 (B, n=8) and LacZ (L, n=8) group. Peritoneal function was assessed on baseline, 3rd, 6th, 8th weeks after PD. Immunohistochemistry for TGF-β, VEGF, laminin and aquaporin-1 was performed in addition to morphometric analysis of peritoneum. Immunofluorescence staining with western blotting for α-SMA and E-cadherin, as markers of EMT, was performed. Results: The thickness of submesothelial matrix was highest in D and significantly decreased in B compared to D, R and L. D/D0 glucose at 8 weeks was significantly increased in B and L compared to that of at 6 weeks, but there were no significant differences among R, B and L at 8 weeks. TGF-β1 and VEGF expression was observed in submesothelial matrix in D and decreased in R, B and L. Peritoneal fibrosis and functional deterioration of peritoneal membrane were associated with EMT, which was partially reversed in R, B and L. Conclusions: BMP-7 gene transfer to peritoneum was not associated with the additive therapeutic effect on peritoneal function compared to the peritoneal rest, although it improved morphologic changes of peritoneum.