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염색체 DNA 제한효소 절편분석 및 Southern hybridization 을 이용한 병원 칸디다 감염증의 역학적 연구
정희진(Hee Jin Cheong),유철웅(Cheol Woong Yu),강세용(Se Yong Kang),우흥정(Heung Jeong Woo),김우주(Woo Joo Kim),박승철(Seung Chull Park) 대한내과학회 1999 대한내과학회지 Vol.57 No.2
Background : Candida species are not only the leading cause of nosocomial fungal infections but also the important cause of infections in the immunocompromised hosts. Epidemiologic study of nosocomial candidiasis has been difficult because of the lack of a reliable typing system. We performed molecular epidemiologic study by using RFA and Southem hybridization for typing of candida isolates from patiients. Methods : A total of 27 candida isolates from 19 immunocompromised patients were studied. Morphotyping and biotyping were done by germ tube test and API 20C system, respectively. Candidial chromosomal DNA was extracted, digested with EcoRI, HindalII and RFA was done. Southem hybridization of chromosomal DNA was also done with digoxigen-labelled Candial albicans-specific DNA probe. Results : The time-period of development of oral candidiasis after admission was 5-14 days (mean : 8 days). C.albicans was the most common species (19), followed by C tropiadis (2), C glabn#zta (2), C.paratropicalis (2), and C parapsilosis (1). The subtypes of Candida species by RFA of chromosomal DNA were C. albieans, 12 types , C tropicalis, 2 types, C glabrata, 2 types ; C.parapsilasis, 1 type ; C. paratropicalis, 1 type. For 7 (87.5%) of 8 patients, RFA pattern of one isolate was identical to that of the other isolates. Conclusion : RFA of candidial chromosomal DNA results were obtainable within days. RFA showed high reproducibility, typeability and good discrimination power between isolates, provided a robust system that may be used rapidly to identify outbreaks of nosocomial candidiasis.
성인 무균성 수막염 환자의 뇌척수액으로부터 Enteroviruses 의 분리
정희진(Hee Jin Cheong),김우주(Woo Joo Kim),김민자(Min Ja Kim),박승철(Seung Chull Park) 대한내과학회 1997 대한내과학회지 Vol.53 No.4
Background: The enteroviruses are the most common etiologic agent of aseptic meningitis in adults and children. The incidence of enteroviral meningitis in childhood meningitis is up to 80%, but in adults is not known, worldwidely. In Korea, where tuberculosis is endemic, the rapid and accurate diagnostic method for enteroviral meningitis is required especially because early differential diagnosis of viral meningitis from tuberculous meningitis is very important. The aims of this study were the demonstration of enteroviruses from cerebrospinal fluid (CSF) of adult patients with aseptic meningitis by PCR/Southern hybridization and the verification of the usefulness of PCR/southern hybridization as a rapid diagnostic tool. Methods: From July 1992 to June 1995, total 34 CSF samples (10 from children, 24 from adults) of patients with aseptic meningitis were studied. As a control group, 15 patients with tuberculous meningitis and 15 patients with bacterial meningitis were studied. Viral RNA was extracted from CSF, reverse transcriptied into cDNA and amplified. The PCR products were Southern hybridizied with enteroviruses-specific digoxigenin-labelled probe. Results: 16/24(66.7%) samples of adult patients with aseptic meningitis were positive for enteroviruses, while in child patients with aseptic meningitis, 9/10(90%) samples were positive. And in one patient, PCR was positive from asymptomatic, onset-7th day CSF sample. Conclusion: Enteroviruses were the most common causative organisms of adult aseptic meningitis in Korea. And, this study showed the usefulness of PCR/Southern hybridization of enteroviruses from CSF for etiologic diagnosis of adult aseptic meningitis in subclinical, asymptomatic period.
신병훈련소의 군인에서 발생한 아데노바이러스 55형 폐렴
윤진구 ( Jin Gu Yoon ),이샘나 ( Saem Na Lee ),이정민 ( Jung Min Lee ),노지윤 ( Ji Yun Noh ),송준영 ( Joon Young Song ),정희진 ( Hee Jin Cheong ),김우주 ( Woo Joo Kim ) 대한내과학회 2016 대한내과학회지 Vol.90 No.4
Adenoviral pneumonia is rare in healthy adults. However, several cases were recently reported in a military training center in South Korea. Adenovirus genotype 3, 6, and 7 are predominant in South Korea. More recently, genotype 55, which emerged sporadically in China, has been reported in South Korea. In this study, we present a case of adenoviral pneumonia caused by genotype 55 in a healthy soldier from an army recruit training center in South Korea. (Korean J Med 2016;90:365-368)
2009년 발생한 신종인플루엔자 대유행에 대한 정책적 대응 평가
최원석,김우주,정희진,Choi, Won-Suk,Kim, Woo-Joo,Cheong, Hee-Jin 대한예방의학회 2010 예방의학회지 Vol.43 No.2
Objectives: To evaluate the policies on 2009 influenza pandemic in Korea at the end of first wave. Methods: The main policies and the estimation of these were described according to the progress of 2009 influenza pandemic. Results: The public health measures for containment were estimated to be successful in the early stage. The preparedness of antiviral agents and vaccines before the pandemic, risk-communication on pandemic influenza and policies of government including vaccines, and the education of health care worker and support of health care institutions was not enough to respond to the pandemic. Conclusions: The additional evaluation should be performed at the end of the pandemic in various aspects including health and socioeconomic effects.
유철웅(Cheol Woong Yu),정희진(Hee Jin Cheong),강민승(Min Seung Kang),우흥정(Heung Jeong Woo),김우주(Woo Joo Kim),김민자(Min Ja Kim),박승철(Seung Chull Park) 대한내과학회 2000 대한내과학회지 Vol.58 No.3
Pneumonia caused by Mycoplasma pneumoniae is manifested as a mild and self-limited. However, several overwhelming cases have been reported. Recently, we experienced a case of M. pneumoniae pneumonia that progressed into ARDS in a 68-year old man who was admitted because of fever and erythema multiforme on whole body. On admission, serum cold agglutinins and anti-mycoplasma Ab were negative. Lobar consolidation was visible at initial chest X-ray. But, bilateral infiltration was noted at follow-up chest X-ray and his condition was aggravated to ARDS. Anti-mycoplasma Ab was elevated up to 1:640. He was treated with roxithromycin, prednisolone and mechanical ventilator in ICU for 2 weeks. And after this, his clinical condition was recovered completely.(Korean J Med 58:324-329, 2000)
IgG avidity assay 를 이용한 급성 한탄바이러스 감염의 진단
김우주(Woo Joo Kim),정희진(Hee Jin Cheong),우흥정(Heung Jeong Woo),박승철(Seung Chull Park),김민자(Min Ja Kim),백락주(Luck Ju Baek) 대한내과학회 1999 대한내과학회지 Vol.56 No.5
Objective : The golden standard of serodiagnosis of HFRS is IFA(indirect immunofluorescence antibody test). However, positive IFA for IgG antibody does not always correlate with current infection because IFA may be positive due to past exposure to Hantaan virus such as subclincal infection or due to vaccination in endemic area. So supplementary diagnostic method is needed to diagnosis of HFRS with more accuracy. Methods : In this study, the usefulness of IgG avidity assay with 8 mole/l urea in diagnosis of HFRS was investigated. Serum samples from 45 patients with acute phase HFRS and 79 residents of endemic area, who had HFRS antibody were tested for IgG avidity. Results : The distribution of IgG avidity index of HFRS antibody was different acute phase of HFRS patients from endemic area residents(p<0.001). Patients with acute phase HFRS exhibited lower avidity of Hantaan virus-specific IgG (mode of 64 of avidity index), in contrast endemic area resident had a higher avidity (mode of 4 of avidity index). Conclusion : The IgG avidity assay should assist in the diagnosis of acute phase HFRS and may be used to identify recent infection and past exposure to Hantaan virus.
B형 인플루엔자와 관련되어 발생한 혈구포식 림프조직구증식증
이샘나 ( Saem Na Lee ),윤진구 ( Jin Gu Yoon ),조치현 ( Chi Hyun Cho ),최철원 ( Chul Won Choi ),최정윤 ( Jung Yoon Choi ),정희진 ( Hee Jin Cheong ),김우주 ( Woo Joo Kim ) 대한내과학회 2016 대한내과학회지 Vol.91 No.1
Influenza infection may be complicated by various infectious or non-infectious diseases. Among them, hemophagocytic lymphohistiocytosis (HLH) is an uncommon hyperinflammatory syndrome caused by uncontrolled proliferation and activation of macrophages and lymphocytes, and it is often life threatening. A previously healthy male patient was suspected to have HLH after influenza B infection. The diagnosis was established based on clinical diagnostic criteria suggested in the HLH-2004 trial. Despite prompt antiviral therapy, the patient expired on day 19 of hospitalization. Influenza can thus be complicated by HLH. Due to the non-specific manifestations of HLH, clinical suspicion and early diagnosis are important. (Korean J Med 2016;91:88-91)
한국 훈련병에서 수막염균 보균에 대한 4가 수막염균 결합 백신의 영향
허중연 ( Jung Yeon Heo ),배송미 ( Song-mee Bae ),정희진 ( Hee Jin Cheong ),김우주 ( Woo Joo Kim ),김민영 ( Min Young Kim ),나원웅 ( Wonwoong Na ),최강원 ( Kang-won Choe ),천병철 ( Byung Chul Chun ) 국군의무사령부 2014 대한군진의학학술지 Vol.45 No.1
Background: Monovalent meningococcal conjugate vaccines against serogroup A or C had resulted in significant reduction of pharyngeal carriage rates against respective vaccine serogroup. However, the effect of quadrivalent meningococcal conjugate vaccine on meningococcal carriage has not been evaluated. We assessed on changing pharyngeal carriage rate of Neisseria meningitidis after the introduction of quadrivalent meningococcal conjugate vaccine in Korean military trainees. Methods: Twice oropharyngeal swabs were conducted at the beginning and end of army training period in Korean military trainees. First oropharyngeal swabs were undertaken prior to vaccination. Second round of swabbing was done 5 weeks later. Results: In 2013, overall carriage rate of N. meningitidis was higher at the end of training period (13.8%, 60 of 434 participants) than on entry of military service (8.9%, 39 of 434 participants). Although carriage rate of nongroupable and serogroup X isolates were increased over 5-week interval, carriage strains of vaccine serogroup, which were included serogroups in quadrivalent meningococcal vaccine, were relatively reduced from 7 to 2 isolates following vaccination. However, in 2014, overall carriage rate of N. meningitidis was significantly lower at the end of training period (5.2%, 23 of 443 participants) than on entry of military service (12.6%, 56 of 443 participants) (p=0.028). Carriage isolates of vaccine serogroups were significantly decreased with that of non-vaccine serogroup B over 5-week interval (p=0.006). Conclusion: Meningococcal vaccination in Korean military trainees resulted in reduction of pharyngeal carriage rates of not only vaccine serogroup meningococci but non-vaccine serogroup B. Quadrivalent meningococcal conjugate vaccine is likely to preventing carriage acquisition of meningococci in a closed population.