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PCR-RFLP에 의한 대중목욕탕 내 Nontuberculous Mycobacteria의 동정
최승구 ( Seung Gu Choi ),송운흥 ( Woon Heung Song ),강치환 ( Chee Hwan Kang ),조규봉 ( Kyu Bong Cho ),이재상 ( Jae Sang Lee ),이장호 ( Jang Ho Lee ),김성일 ( Sung Il Kim ),지수일 ( Soo Il Jee ) 대한임상검사과학회 2008 대한임상검사과학회지(KJCLS) Vol.40 No.1
Thirty two of bathroom water samples from public bathroom in Seoul areas were examined using acid-fast staining, Lowenstein-Jensen (L-J) medium culture and PCR-restriction fragment length polymorphism (PCR-RFLP). In 6.25% (2/32) bathroom water samples, acid-fast bacilli were detected by AFB stain, and in 21.9% (7/32) bathroom water samples, acid fast bacilli grew on L-J media. Of them, six acid-fast bacilli were identified as Mycobacterium avium, and the other AFB as Mycobacterium szulgai by PCR-RFLP. These results are suggested that accidental nontuberculosis mycobacterial infection to a weakness person will be possible in public area.
최승구(Seung Gu Choi),송운흥(Woon Heung Song),권대철(Dae Cheol Kweon) 대한방사선과학회 2015 방사선기술과학 Vol.38 No.4
영상의학과의 흉부엑스선 검사에서 감염관리에 대한 기기의 오염 정도를 세균학적으로 확인하고 균을 동정하여 병원감염의 예방과 감염관리방안을 마련하는데 목적이 있다. 영상의학과 흉부 엑스선 검사에서 환자의 기기 접촉부위인 어깨, 손, 턱, 흉부 측면촬영의 손잡이 부위를 70% 이소프로필 알코올로 소독하기 전과 후를 면봉으로 검체를 채취하여 세균을 동정하여 비교하여 분석하였다. 흉부 엑스선 기기에서 소독전의 측면촬영의 손잡이에서 그람 양성의 Staphylococcus가 분리되었다. 최종동정을 위해 노보바이오신 (nobobiocin) 항생제 시험을 실시하여 민감성으로 Staphylococcus epidermidis로 확정하였다. 흉부촬영 기기에서 측면촬영의 손잡이 부위를 소독 전에 Staphylococcus epidermidis 균이 검출되었다. 흉부엑스선 검사에서 기기를 주기적인 소독 및 멸균을 실시하여 병원감염을 예방하는 관리방안을 마련하여야 한다. The purpose is to determine the degree of contamination of the equipment for infection control in chest radiography of the radiology department. We confirmed by chemical and bacterial identification of bacteria of the equipment and established a preventive maintenance plan. Chest X-ray radiography contact area on the instrument patients shoulder, hand, chin, chest lateral radiography patient contact areas with a 70% isopropyl alcohol cotton swab were compared to identify the bacteria before and after sterilization on the patient contact area in the chest radiography equipment of the department. The gram positive Staphylococcus was isolated from side shoots handle before disinfection in the chest radiography equipment. For the final identification of antibiotic tested that it was determined by performing the nobo-biocin to the sensitive Staphylococcus epidermidis. Chest radiography equipment before disinfecting the handle side of Staphylococcus epidermidis bacteria were detected using a disinfectant should be to prevent hospital infections.
분자생물학적 방법인 PCR-REBA를 이용한 대중목욕탕 수질 중 수인성병원성미생물 검출
송운흥(Song, Woon-Heung),최승구(Choi, Seung-Gu),양병선(Yang, Byoung-Seon),이재상(Lee, Jae-Sang) 한국산학기술학회 2011 한국산학기술학회논문지 Vol.12 No.8
수인성 병원성 미생물에 의한 공중목욕탕의 오염은 질병발생의 원인이 된다. 본 연구에서는 공중목욕탕내에 존재하는 수인성 병원성미생물들을 확인하고자 하였다. 서울지역내의 30 곳 공중목욕탕에서 욕조수 시료를 채수하여 진행하였다. 수인성 병원성미생물의 검출은 0.45 ㎛의 여과막을 이용하여 전통적인 배양방법으로 분리 및 동정하였 다. 분자생물학적 기법을 사용하기 위해 미생물학적인 배양을 하지 않고 핵산을 추출하여 16S rRNA유전자를 표적으 로 polymerase chain reaction-reverse blot hybridization (PCR-REBA)을 실시하였다. 미생물학적 배양방법에서는 지표 세균인 Escherichia coli와 Shigella spp.가 검출되었으며, 분자생물학적 기법인 PCR-REBA을 수행한 결과 E. coli, Shigella spp., Salmonella spp., Pseudomonas spp., Mycobacterium spp. 등의 수인성 병원성미생물이 7곳에서 검출되었 다. 본 연구결과를 토대로 공중목욕탕의 욕조수내에 수인성병원성미생물에 의한 감염을 줄이기 위해 적절한 위생관 리과 E. coli를 포함한 유해미생물을 선정하여 지속적인 모니터링이 필요할 것으로 사료된다. Contamination of public bath water by waterborne pathogens can cause disease outbreaks and contribute to background rates of disease. The aim of this study is to determine the prevalence of waterborne pathogens in public baths. A total of 30 water samples were collected from 30 different public baths in seoul, Korea. Pathogens in water samples were concentrated by 0.45 ㎛ nitrocellulose membrane filter, analyzed by both cultivation and polymerase chain reaction-reverse blot hybridization (PCR-REBA) of partial 16S rRNA gene. Various microorganisms including Escherichia coli and Shigella spp. were identified by microbiological cultivation. E. coli, Shigella spp., Salmonella spp., Pseudomonas spp. and Mycobacterium spp. were identified by PCR-REBA. Our results suggest that appropriate hygiene practice and continuous monitoring is needed for reducing health risk associated with public bath houses.
충청지역에서 분리된 사람 유래 대장균 및 닭 유래 대장균의 항균제 내성 및 MLST를 이용한 유전형의 분포 조사
김세미 ( Semi Kim ),성지연 ( Ji Youn Sung ),최승구 ( Seung Gu Choi ) 대한임상검사과학회 2015 대한임상검사과학회지(KJCLS) Vol.47 No.2
Antimicrobial resistant bacteria has recently emerged and been disseminated in livestock environments because of excessive use of antimicrobial agents for the therapeutic and growth promotion purposes to food animals. In particular, there is potential for multidrug-resistant bacteria that can be transmitted from animals to mankind. In this study, we investigated the genotypes of E. coli strains isolated from humans and chickens using multi-locus sequence typing (MLST) and antimicrobial resistance patterns by disk diffusion method along with integron study involving antimicrobial resistance mechanisms. From July 2013 to July 2014, E. coli strains isolated from clinical specimens (n=44) and poultry chickens (n=34). ST131 (n=20) was most common in human-derived E. coli. ST752 (n=7) was most common in chicken-derived E. coli, with four isolates each for ST117, ST189, and ST69. Of the 44 E. coli strains isolated from humans, 25 of had a class 1 integron, as opposed to only 11 of 34 strains in the E. coli isolated from chickens. There were differences in genotypes and antimicrobial resistance patterns between the chicken-derived and the human-derived E. coli
대한임상검사과학회지 50년사: 명칭과 KCI 등재에 대하여
구본경,성호중,이기종,양병선,주세익,최승구,장인호,양만길,Koo, Bon-Kyeong,Sung, Ho Joong,Rhee, Ki-Jong,Yang, Byoung-Seon,Joo, Sei Ick,Choi, Seung-Gu,Jang, In-Ho,Yang, Man-Gil 대한임상검사과학회 2017 대한임상검사과학회지(KJCLS) Vol.49 No.3
The Korean Society for Clinical Laboratory Science publishes the Korean Journal of Clinical Laboratory Science (KJCLS) as the official journal for the Korean Association of Medical Technologists. This year, 2017, marks the 50th anniversary of KJCLS. The original name was "the Korean Journal of Medical Technologists" (Volume 1, 1967~Volume 26, 1994), which was replaced with the "Korean Journal of the Clinical Laboratory Science" (Volume 27, 1995~Volume 35, 2003) and "the Korean Journal of Clinical Laboratory Science" (Volume 26, 2004~Present). The purpose of this study was to provide a framework for further development of KJCLS. In 1998, the National Research Foundation of Korea began the journal assessment service. The major domestic databases are KCI, KOFST, and KAMJE; the major international databases are SCI Index; SCI Core, SCI-Extended), SCOPUS, MEDLINE, and PUBMED. KJCLS has been registered with KCI of the National Research Foundation of Korea since 2014. More than 1,300 articles have been published, which all have made tremendous contributions to the field. To index KJCLS in the journal databases, we measured the value to understand the vocational level and social position. KJCLS is faced with a great challenge; immense effort will be needed to accomplish the original goal of KJCLS to become an internationally recognized journal. Ultimately, the goal of the Korean Society for Clinical Laboratory Science and the Korean Association of Medical Technologists should be to register KJCLS in databases such as KCI and SCOPUS.
박쥐에서 분리한 Hantavirus의 병리조직학적 소견
조규봉 ( Kyu Bong Cho ),강치환 ( Chee Hwan Kang ),최승구 ( Seung Gu Choi ) 대한임상검사과학회 1999 대한임상검사과학회지(KJCLS) Vol.31 No.2
A few hundred cases of hemorrhagic fever with rena1 syndrome (HFRS) have been caused by Hantaan virus and related viruses of Genus Hantavirus occur annua1y in Korea. It has been known that field and sylvatic mice, Apodemus agrarius and urban rats, Rattus norvegicus and R. rattus constitute the anima1-host reservoir in Korea. Recently, we have detected antibodies against Hantan virus in the sera of bats and isolated a Hantavirus(CUMC-92B48 virus) from lung tissue of a bat. We a1so tried to examine pathology of the bat-originated virus in suck-ling mice. In the pathologica1 findings of suck1ing mice inocu1ated intracerebra11y with the bat -originated virus, it was characterized by foca1 interstitia1 edema combined with nerve fiber, nucler degeneration and perivascu1ar lymphocyte infiltration in the brain. It was shown that congestion, hemorrhage and septa1 thickening in the lung, lymphocyte infi1tration to intra10bule and foca1 necrosis in hepatocyte, appearance of some ba1100ning degenerative cells in liver, and foca1 destroyed lymphoidfollic1es and marked congestion in spleen.