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임상검체에서 분리된 H. influenzae 의 생물형 분포
박정준 ( J J Park ),이현임 ( H I Lee ),이인숙 ( I S Lee ),차경호 ( K H Cha ) 대한임상검사과학회 1993 대한임상검사과학회지(KJCLS) Vol.25 No.1
Haemophilus influenza, one of the normal flora of upper respiratory tract, may csuse vari-ous infection. To assess the H. influenza biotype and β-Lactamase producer among clinical isolates of H. influenza, a total 97 isolater were tested. The following results were obtained. 1. Among total 97 isolates, H. influenze biotype were : biotype I 5(10%), II 20(40%), III 16(32%), V 1(4%), VII 6(12%), VIII 1(2%) out of 50 Throat biotype I 7(20%), II 12(34.3%), III 11(31.4%), V 3(8.6%), VI 1 (2.8%), VII 1(33.3%) out of 35 sputum. Biotype I 2(66.7%), III 1(33.3%) out of 3 blood culture biotype I 2(66.7%), III 1(33.3%) out of 3ear discharge biotype II 2(100%) out of 2 CSF biotype II 2 (100%) out of 2 sinus cavity biotype IV 1(100%) out of 1 Oral cavity biotype VI 1 (100%)out of 1 neck dis- charge 2. Among total 97 isolates, β-lactmase produ-ers were: 29(58%) out of 50 throat, 18(51%)out of 33 sputum,1(33%) out of 3 blood cultre, 1(33%) out of 3 ear discharge, 2(100%) out of 2 C.S.F, 1(100%) out of 1 oral cavity, 1(100%) out of 1 neck discharge
이준범,Lee Byoung-hee,박정준,Hong Jeong In,Lee Dae-Weon 한국응용곤충학회 2022 Journal of Asia-Pacific Entomology Vol.25 No.3
The tobacco whitefly, Bemisia tabaci (Hemiptera: Aleyrodidae), is a serious pest that transmits tomato yellow leaf curl virus (TYLCV) in tomato. The tobacco whitefly exhibits morphological similarity with the greenhouse whitefly, Trialeurodes vaporariorum (Hemiptera: Aleyrodidae) which also damages various plants in the green house. Therefore, it is very important to quickly and accurately diagnose whiteflies for applying pest manage ment strategies. In this study, we used a loop-mediated isothermal amplification (LAMP) assay to quickly and effectively detect B. tabaci. Primer sets were investigated for the specificity of B. tabaci by visible detection of the target DNA fragment. Two primer sets for pheromone biosynthesis activating neuropeptide (PBAN) gene were obtained from transcriptomic analysis of B. tabaci biotype Q. The PBAN-based LAMP primer set showed specific amplification of the target region. The optimal conditions for B. tabaci detection were 60 ◦ C for 60 min with four LAMP primers of PBAN. The minimum amount of genomic DNA required for visible detection was 100 ng. These results suggest that the PBAN-based LAMP assay can be applicable for field monitoring of B. tabaci.
Enterobacteriaceae의 Extended - Spectrum ß-Lactamase 생성율
김상택 ( S. T. Kim ),김정옥 ( J. O. Kim ),박정준 ( J. J. Park ),안경남 ( G. N. An ) 대한임상검사과학회 1998 대한임상검사과학회지(KJCLS) Vol.30 No.2
Extended-spectrum ß -lactarnases(ESBL) are enzymes that confer resistance to extended spectrum cephalosporins, such as ceftazidime and cefotaxime, and related oxyimino-ß -lactarns as well as to older penicillins and cephalosporins. In recent years, bacterial resistance to β -lactam antibiotics has risen dramatically, contributing to this increase has been the spread of extended-spectrum ß -lactamases. In this study, we determined the occurrence of ESBL among all genera of the family Enterobacteriaceae lS이ated at the Kangnam St. Mary’s hospital, during April 1997 and October 1997. A total of 430 clinical is이ates of members of the family Enterobacteriaceae were tested for production of extended-spectrum ß -lactamases by the double disk synergy test using ceftazidime, cefotaxime, ceftriaxone and amoxicillin/clavulanic acid disks. Of the 430 lS이ates tested by the double disk method, enhanced zones of inhibition were observed with 50(11.6%) isolates. The 50 ESBL-producing is이ates were composed of Klebsiella pneumoniae(21), Escherichia co!i(12), Enterobacter clcαcae(l l), Citrobacter freundii (2) , Klebsiella oxvtoca( l). Morl!anella morl!anu( l). Proteus vull!aris( l) and Serratia marcesce-ns (1). The highest occurrence rates of ESBL within each species that produced ESBL was E. cloacae(25.6%), otherwise K. pneumoniae and E. coli, known as relatively high ESBL producing organisms, were 23.3% and 5.4%, respectively. Among the members of family Enterobacteriaceae other than K. pneumoniae and E. coli, the ESBL producing rates of these isolates that reduced susceptibility with third generation cephalosporins(ceftazidime, ceftizoxime) or aztreonam were 38.1%. Therefore, all members of the family Enterobacteriaceae with reduced susceptibility to third generation cephalosporins or monobactams by disk diffusion antimicrobial susceptibility test should be determined whether they are ESBL producing-strains or not.