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2009년 인플루엔자 대유행 중 인플루엔자 진료소 방문자의 연령 분포 변화
김백남,곽이경,문치숙,김연숙,김의석,배인규,염준섭,이창섭,허지안 대한감염학회 2010 감염과 화학요법 Vol.42 No.2
The pandemic influenza (H1N1 2009) virus, after being introduced in Korea in April, 2009, spread rapidly nationwide in mid-2009. This study was conducted to characterize trend in age distribution of visitors to Flu-clinics during the pandemic. Demographic, clinical and laboratory data of visitors to flu clinic from Week 36 to 52 (August 30 to December 26) of 2009 were retrieved and collected from electronic databases at 9 hospitals. Visitors 0-6, 7-12, 13-18, 19-29, 30-64, and 65 years or more of age were classified into group I to VI, respectively. A total of 107,467 visitors were seen at Flu-clinics for a 17-week study period. Of those, 32,485 were laboratory-confirmed. Antivirals were prescribed for 62,533 visitors. Numbers of visits, prescriptions of antivirals, and laboratory-confirmed cases of the pandemic influenza (H1N1 2009) peaked at Week 44. A large number of visits by group II and III were followed by those of group I and V, especially around the peak. Numbers of visits by group VI were lowest in all hospitals. In some hospitals, higher number of visits lasted longer in children than in adults while vice versa in other hospitals depending on the location. In summary, the pandemic influenza (H1N1 2009) was presumed to peak in late October and involved majorly children and students in Korea. Unique age distribution of visitors to flu clinic was observed in some hospitals.
주지현,최정현,이동건,백지연,고윤호,이혜정,김세희,신호진,박윤희,박지영,김유진,신완식,김춘추 대한감염학회 2001 감염 Vol.33 No.4
Background : Pneumocytitis cainii pneumonia (PCP) can occur in immunocompromised hosts especially such as AIDS or cancer patients. Although recent research had focused on PCP in AIDS patients, few studies have described the clinical presentations of PCP in recipients of stem cell transplantation (SCT). We evaluated the clinical manifestations of PCP in SCT patients admitted at St. Mary's hospital, Seoul, Korea. Methods : The medical records of 17 PCP patients undergoing SCT between Feb. 1998 and Feb. 2000 were reviewed. The diagnosis of PCP was confirmed through the demonstration of Pneumocytitis cainii via either cytology of brochoalveolar lavage (BAL) or histological technique of lung biopsy. CMV disease and CMV infection were confirmed by BAL culture and antigenemia respectively . Results : Seventeen patients were all recipients of allogeneic SCT and 7 of 17 patients were performed non-sibling SCT. Patients presented with symptoms including brief period (4 ∼23 days) of fever (76%), dyspnea (70%), cough (64%), and signs such as rare(58.8%), Sixteen patients (94%) had been receiving immunosuppressive agent such as cyclosporine A (64%) or Fk506 (35%) without PCP prophylaxis. Eleven patients (64%) were treated with corticosteroid with mean dose of 16 mg/day prednisolone and mean duration of 4.6 months after post-SCT period. Twelve patients were co-infected with CMV. Another co-infected miCroorganisms were Pseudomonas aeruginosa, Mycobacterium tuberculosis, herpes simplex virus, parainfluenza virus, Average duration of treatment with trimethoprim-sulfamethoxazole (TMP/SMX) was 21 ±9 days. Four patients died, and three of them were related with PCP. Conclusion : PCP developed frequently in patients who were taking immunosuppressive drug due to graft versus host disease or were not taking TMP/SMX prophylaxis. High risk patients showing fever, cough, or dyspnea should be considered to take early bronchoscopic intervention for detection of PCP. When treat for PCP, it also be considered to the possibility of coinfection such as CMV. (Korean J Infect Dis 33:273∼279, 2001)
Ji-Yeon Baek,Kyeong-Hee Rha 위기관리 이론과 실천 2021 Journal of Safety and Crisis Management Vol.11 No.6
The purpose of this research was to investigate how EFL college learners self-directed their English writing using MT in an English writing class. Specifically, this study focused on 1) What types of errors are identified the most frequently in the students’ writings?, 2) How those errors have been changed through the students’ self-directed revision process?, and 3) In what ways does this activity influence students’ perceptions toward English writing? The participants were six university students who took a 3-credit English writing class, and completed their writings using MT throughout the semester. The students’ written outcomes, in-depth interviews with them and results of writing tests were analyzed. The findings of data analysis indicated that first, the highest frequency of errors was seen in lexical errors at the rate of 65.5%, followed by morphological errors at the rate of 19.7%. Second, there has been a significant decrease in the overall types of errors between the first (35.0%) and second (20.9%) drafts, from the no-use of MT to the use of MT. Lastly, it can be said that the MT-assisted writing practice which took place during a short period of time had positive influence on students’ perceptions toward English writing. Implications for online classes in the Corona era are presented.
Baek, Ji Yeon,Morris, Shelli M.,Campbell, Jean,Fausto, Nelson,Yeh, Matthew M.,Grady, William M. Wiley Subscription Services, Inc., A Wiley Company 2010 International journal of cancer: Journal internati Vol.127 No.5
<P>Hepatocellular carcinoma (HCC) results from the cumulative effects of deregulated tumor suppressor genes and oncogenes. The tumor suppressor and oncogenes commonly affected include growth factors, receptors and their downstream signaling pathway components. The overexpression of transforming growth factor alpha (TGF-α) and the inhibition of TGF-β signaling are especially common in human liver cancer. Thus, we assessed whether TGF-α overexpression and TGF-β signaling inactivation cooperate in hepatocarcinogenesis using an in vivo mouse model, MT1/TGFa;AlbCre/Tgfbr2<SUP>flx/flx</SUP> mice (“TGFa;Tgfbr2<SUP>hepko</SUP>”), which overexpresses TGF-α and lacks a TGF-β receptor in the liver. TGF-β signaling inactivation did not alter the frequency or number of cancers in mice with overexpression of TGF-α. However, the tumors in the TGFa;Tgfbr2<SUP>hepko</SUP> mice displayed increased proliferation and increased cdk2, cyclin E and cyclin A expression as well as decreased Cdkn1a/p21 expression compared to normal liver and compared to the cancers arising in the TGF-α overexpressing mice with intact TGF-β receptors. Increased phosphorylated ERK1/2 expression was also present in the tumors from the TGFa;Tgfbr2<SUP>hepko</SUP> mice and correlated with downregulated Raf kinase inhibitor protein expression, which is a common molecular event in human HCC. Thus, TGF-β signaling inactivation appears to cooperate with TGF-α in vivo to promote the formation of liver cancer that recapitulates molecular features of human HCC.</P>
[P5-51] Development of a Species Specific-PCR Method for Rapid Identification of Bacillus cereus
Ji Yeon Lee,Gun-Hee Kwon,Hwang A Lee,Ji Yeong Park,Chang Un Baek,Hyeon Deok Jo,Kang Wook Lee,Joo Yeon Kim,Chun-Seok Park,Dae Young Kwon,Jinkyu Lim,Jong-Sang Kim,Jeong Hwan Kim 한국식품영양과학회 2009 한국식품영양과학회 학술대회발표집 Vol.2009 No.11
Baek, Ji Yeon,Kang, Myoung Hee,Hong, Yong Sang,Kim, Tae Won,Kim, Dae Yong,Oh, Jae Hwan,Lee, Seung Hoon,Park, Jin Hong,Kim, Jong Hoon,Kim, Sun Young M. Nijhoff ; Kluwer Academic Publishers 2011 Journal of neuro-oncology Vol.104 No.3
<P>Brain metastases (BM) occur in approximately 20-40% of cancer patients. The present study investigated the clinical outcomes of patients with BM from colorectal cancer (CRC) to assess the benefit of systemic chemotherapy (CT) administered after surgical or radiotherapeutic control of BM and to identify independent prognostic factors associated with survival after BM. Between August 2001 and July 2009, 118 patients with symptomatic BM from CRC received either cranial irradiation or craniotomy at two large cancer centers in South Korea. Retrospective review and statistical analysis of clinical characteristics and outcomes were performed for all patients. Median time from diagnosis of metastatic CRC to detection of BM was 12.2??months (range 0-76.2??months). Thirteen patients (11%) exhibited brain involvement at initial presentation. Median survival after BM development was 4.1??months [95% confidence interval (CI) 3.3-4.9??months]. Forty-six patients (40%) had been treated previously with the chemotherapeutic agents fluoropyrimidine, oxaliplatin, and irinotecan. Patients who received CT after BM exhibited significantly improved survival compared with those who did not (12.4 versus 3.1??months, respectively; P??<??0.001). Multivariate analysis revealed that CT intervention after presentation with BM was significantly associated with survival after BM, and the adjusted hazard ratio was 0.30 (95% CI 0.17-0.51, P??<??0.001). Although BM is a late-stage phenomenon in CRC, approximately two-thirds of patients were still unexposed to irinotecan or oxaliplatin at the development of BM in our study. Thus, additional chemotherapeutic intervention after BM associated with CRC may be beneficial for selected patients.</P>