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- 저자 : Yeon Ja Koh(고연자) (검색결과 4 건)
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고연자(Yeon-Ja Koh),공용우(Young-Woo Gong),이제만(Jae-Mann Lee),고종명(Jong-Myoung Go),김용희(Yong-Hee Kim),제갈승(Seung Jegal) 대한환경위생공학회 2007 대한환경위생공학회지 Vol.22 No.4
Recently, there is increasing interest in indoor air pollution. Fungal spores are one of the pollutants that is the causes of hypersensitivity reactions, bronchial asthma, allergic rhinitis. This study was performed to assess the levels of ungi concentration in public facilities and airborne fungi were collected with the air sampler using DRBC(Dichloran rose bengal chloramphenicol) agar. It was found that airborne fungi concentration were related to the humidity and the people movement. 10 genera of fungi was isolated and identified and the most common culturable fungi were Penicillium, Cladosporium, and Aspergillus.
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오보영,김정희,공용우,제갈승,김혜영,이미연,황경화,고연자,이제만,고종명,김용희,Oh, Bo-Young,Kim, Jung-Hee,Gong, Young-Woo,JeGal, Seung,Kim, Hye-Yeung,Lee, Mi-Yeon,Hwang, Kyoung-Wha,Koh, Yeon-Ja,Lee, Jae-Mann,Go, Jong-Myoung,Kim, Yong-H 한국미생물학회 2007 미생물학회지 Vol.43 No.4
2006년도 인천지역 해양환경에서 분리된 Vibrio vulnificus에 대한 생화학적, 분자생물학적 특성 및 항생제 감수성 결과를 알아보았다. 본 실험에 사용된 균주는 총 233주로 해수, 갯벌, 어패류, 수족관수에서 분리되었다. API 20E kit 실험 결과 15개 profile로 분류되었으며, 모든 균주가 ONPG와 Amygdalin 양성이었다. 209주를 대상으로 vvhA와 viuB 유전자 부위에 대해 PCR 실험결과 vvhA는 206주(98.6%) 양성, viuB는 110주(52.6%)가 양성이었으며, 특히 viuB 유전자부위에 대한 PCR 결과는 해수, 어패류, 갯벌에서 분리한 균주의 48%, 48.5%, 61.1%가 양성인 것으로 나타났다. 시험균주 175주에 대해 항생제 감수성 실험 결과 Imipenem (100.0%), Sulfamethoxazole/trimethoprim (98.9%), Tetracycline, Ciprofloxacin (98.3%), Ampicillin/sulbactam (97.1%), Chloramphenicol (96.6%), Cefepime (94.9%), Ceftriaxone (94.8%)이 감수성을 나타내었고, 항생제 하나 또는 그 이상의 약제에 대해 내성을 나타낸 것은 56주(32%)로 해수 28주(31.5%), 갯벌 21주(34.4%), 어패류 7주(29.2%)였다. V. vulnificus 233주에 대해 PFGE를 실시하여 dendrogram으로 분석한 결과 90%이상의 상동성 기준으로 126개의 유형으로 분리되었고, 58%이상의 상동성을 기준으로 13개의 cluster로 분류되었다. Cluster I는 104주(44.6%)로 가장 많은 균주들이 분포하였고 채취시기 대부분 I에 가장 많은 균주들이 분포하였으나 10월과 6월에 채취한 검체는 J에 16주(69.6%)와 13주(36.1%)로 가장 많은 균주들이 분포하였다. 7월에 채취한 검체에서 분리된 균주는 9개의 cluster에 속하였고 8월은 8개, 6월은 7개, 9월은 6개, 10월은 5개, 5월은 3개, 3월은 1개를 나타냈다. We performed the biochemical characteristics, molecular epidemiologocal analysis, and drug susceptibility test on V. vulnificus isolated from environmental sources in Incheon. For this study, 233 strains were isolated from seawater, sediment, shellfish. V. vulnificus isolates were divided into 15 biochemical groups, which were positive for ONPG and Amygdalin test. Among the 209 strains, 206 (98.6%) strains and 110 (52.6%) strains revealed positive for vvhA and viuB gene, and the viuB gene detection rates of V. vulnificus from seawater, shellfish and sediment were 48%, 48.5% and 61.6%, respectively. From disc diffusion test on 175 isolates, most of strains were sensitive to Imipenem (100.0%), Sulfamethoxazole/trimethoprim (98.9%), Tetracycline, Ciprofloxacin (98.3%), Ampicillin/sulbactam (97.1%), Ohloramphenicol (96.6%), Cefepime (94.9%) and Ceftriaxone (94.8%), multi-drug resistance rates was 31.5% of seawater, 34.4% of sediment and 29.2% of shellfish. PFGE was performed on 233 V. vulnificus isolates with the objective of investigating the extent of genetic diversity of these isolates in our region. We could find that at least 126 different PFGE patterns were generated according by 90% of similarity and 13 clusters by 58% of similarity. The major cluster was type I (44.6%) during the most of the year, and type J was frequent pattern in June and October. There were 9 distinct PFGE types in July, 8 types in August, 7 types in June, 6 types in September, 5 types in October 3 types in May and 1 type in March.
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Hye Jin Choi(최혜진),Bo Young Oh(오보영),Mi Yeon Lee(이미연),Yeon Ja Koh(고연자),Young Woo Gong(공용우),Myung Je Hur(허명제),Jea Mann Lee(이제만),Young Hee Kim(김용희),Hye Sook Jeong(정혜숙),Doo Sung Cheon(천두성) 한국생명과학회 2012 생명과학회지 Vol.22 No.5
인천지역 병·의원에 내원한 급성위장염환자의 대변 검체 총 11,607건을 효소 면역법(ELISA)을 이용하여 group A rotavirus의 계절별 발생 양상을 조사한 결과 2005년부터 2010년간 인천지역에서는 1~2월이 가장 많이 발생하였으나, 기간별로 차이가 존재했다. 또, group A rotavirus 양성 검체 160건에 유전자 분석 결과 VP4는 P8형, VP7는 G1형, G와 P 조합형으로는 G1P8이 가장 많았다. 그러나 이전의 연구와 비교했을 때 연구 지역과 기간에 따라 혈청형과 유전형의 변화가 빈번하였으므로 효율적인 방역을 위해 지속적인 모니터링이 필요하다고 사려된다. 또 이번 연구는 현재 유통 중인 rotavirus 백신의 효율적인 사용의 기초 자료가 될 것이다. Rotavirus is the main cause of severe diarrhea in infants and young children of the world. However, the frequency of genetic alterations makes it hard to control the prophylaxis. Therefore, continuous monitoring of the rotavirus’s genetic change is inevitable to prevent disease prevalence and is useful in inventing an efficient vaccine. From January 2005 to December 2010, we investigated 11,607 stool samples of acute gastroenteritis patients in the Incheon metropolitan area. About 13.18% (1,530 stool samples) of all samples had a positive reaction against rotavirus using an antigen capture enzyme- linked immunosorbent assay (ELISA). Then, the 160 stool samples were searched for subtypes of group A rotavirus by using a reverse transcription polymerase chain reaction (RT-PCR) and a nested multiplex RCR. In P sub-typing, P8 (56.3%) was an extremely prevalent genotype, followed by P6 (21.3%), and P1A (10.0%). G1 (39.4%) was most widespread in the G subtype, followed by G4 (25.0%) and G3 (18.8%). G1P8 (35.5%) was the most common G and P subtype combination, followed by G4P6 (19.3%) and G3P8 (13.1%). These results might be useful data for understanding the epidemiological status of group A-rotavirus dispersion in the Incheon metropolitan area.
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일반인 및 닭도축장 근무자에서 분리한 대장균의 항생제 내성 양상
황경화 ( Kyoung Wha Hwang ),김혜영 ( Hye Young Kim ),이미연 ( Mi Yeon Lee ),고연자 ( Yeon Ja Koh ) 한국가축위생학회 2007 韓國家畜衛生學會誌 Vol.30 No.1
We monitored antibiotic resistance of Escherichia coli isolates from healthy volunteers of community and chicken butchers from February to July in 2006. From disc diffusion test on 473 E coli isolates from healthy volunteers of the community, the resistance rates of tetracycline, ampicillin, and ticarcillin were 44.8%, 40.8%, and 37.4%, respectively. In the disc diffusion test on 18 E coli isolates from chicken butchers , the resistance rates of tetracycline, nalidixic, streptomycin, and ampicillin were 94.4%, 61.1%, 55.6%, and 50.0%, respectively.
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