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양식 넙치 (Paralichthys olivaceus) 에서 분리된 Edwardsiella tarda에 대한 항균제 MIC 값 분포
김명석 ( Myoung Sug Kim ),조지영 ( Ji Young Cho ),서정수 ( Jung Soo Seo ),정승희 ( Sung Hee Jung ),최혜승 ( Hye Sung Choi ),박명애 ( Myoung Ae Park ) 한국어병학회 2012 한국어병학회지 Vol.25 No.3
The minimum inhibitory concentration (MIC) of eight antibiotics against Edwardsiella tarda 49 strains isolated from olive flounder (Paralichthys olivaceus) was determined by the broth microdilution method. E. tarda showed 38.8% and 61.2% resistance to ampicillin and amoxicillin. Both resistance rates of E. tarda were 4.1% against ciprofloxacin and norfloxacin. The MIC50 values of oxytetracycline, amoxicillin and oxolinic acid were 64 ㎍/㎖, 32 ㎍/㎖and 4 ㎍/㎖. The MIC50 value to ciprofloxacin was 0.25 ㎍/㎖which was lowest among eight antibiotics tested.
수온과 세균 감염이 나일 틸라피아 ( Oreochromis niloticus ) 의 oxolinic acid 흡수와 배설에 미치는 영향
김명석(Myoung Sug Kim),박성우(Sung Woo Park),허민도(Min Do Huh),정현도(Hyun Do Jeong) 한국수산과학회 1998 한국수산과학회지 Vol.31 No.5
The distribution and elimination of oxolinic acid(OA) following oral (80 ㎎/㎏ body weight) and bath(20 ㎎/ℓ) treatment were examined in the organs and plasma of Nile tilapia (Oreochromis niloticus) on different temperature and physiological conditions using a bioassay method. On the analysis of temperature effect, both absorption and elimination of OA after oral administration were delayed in the group at 15℃, but significant difference of the peak concentrations in the tissues of the groups at 15℃ and 25℃ was not revealed. However, the changes of maximam concentration absorption and elimination rates in the tissues of fish following both treatment depending on different temperature were more significantly different from the results of the studies with oral administration. The pharmacokinetics of OA in the tissues of diseased fish, the main target of drug treatment, also appeared to be distinguishable from those of healthy fish.
뱀머리돌고래, Steno bredanensis에서 분리된 Enterococcus faecium의 특성
김명석 ( Myoung Sug Kim ),최혜승 ( Hye Sung Choi ),한현자 ( Hyun Ja Han ),김두남 ( Doo Nam Kim ),안두해 ( Du Hae An ),정승희 ( Sung Hee Jung ) 한국어병학회 2013 한국어병학회지 Vol.26 No.3
제주도에서 좌초된 뱀머리돌고래, Steno bredanensis에서 Enterococcus faecium이 분리 되었다. E. faecium은 간, 비장, 신장, 심장, 폐에서 1.54 × 106 cfu/g까지분리 되었다. E. faecium KCCM 12118과 분리균주사이의 효소 활성은 차이가 없었고 생화학적 특성은 같거나 유사하였다. 모든 분리균주는 6 종류 항균제에 대해 다재내성을 갖고 있었으나 chloramphenicol 과 vancomycin에 대한 내성은 없었다. Enterococcus faecium was isolated from the internal organs of the rough-toothed dolphine, Steno bredanensis which was stranded at Jeju island. E. faecium were isolated from the liver, spleen, kidney, heart and lung up to 1.54 × 106 cfu/g. No significant differences of bacterial enzyme activities between E. faecium KCCM 12118 and the isolates were found. Biochemical constellation was the same or similar to that of E. faecium KCCM 12118 according to API20 strep. All isolates had the multi-drug resistance to 6 antibiotics by an agar disk diffusion method but these isolates didn`t have resistance to chloramphenicol and vancomycin.
양식 넙치, Paralichthys olivaceus에서 분리된 Edwardsiella tarda, Vibrio spp., Streptococcus spp.의 항균제 내성 경향
김명석 ( Myoung Sug Kim ),서정수 ( Jung Soo Seo ),박명애 ( Myoung Ae Park ),조지영 ( Ji Young Cho ),황지연 ( Jee Youn Hwang ),권문경 ( Mun Gyeong Kwon ),정승희 ( Sung Hee Jung ) 한국어병학회 2010 한국어병학회지 Vol.23 No.1
넙치 병원성 세균에 대한 항균제 내성율과 다제내성을 조사하고자 연구를 수행하였다. 우리나라의 양식 넙치 (Paralichthys olivaceus)에서 161균주가 분리되었고 분리균주에는 Edwardsiella tarda (n=32), Vibrio ichthyoenteri (n=37), Vibrio spp. (n=54), Streptococcus parauberis (n=28) 그리고 Streptococcus spp. (n=10)가 포함되었다. E. tarda 분리균주는 tetracycline (84.4%)과 oxolinic acid (71.9%)에 높은 내성율을 나타내었고 V. ichthyoenteri와 Vibrio spp.는 ampicillin(94.6%, 81.5%)과 tetracycline (56.8%, 42.6%) 순서로 높은 내성율을 나타내었다. S. parauberis 분리균주는 ampicillin (57.1%), tetracycline (57.1%), erythromycin (35.7%) 순서로 높은 내성율을 보였다. E. tarda의 84.4%, V. ichthyoenteri의 73.0%, Vibrio spp.의 57.4%, S. parauberis의 42.8% 그리고 Streptococcus spp.의 70.0%가 2종류 이상의 항균제에 다제내성을 나타내었다. In this study, we carried out research on the level of single and multi-drug resistance of bacteria isolated from cultured flounder Paralichthys olivaceus. One hundred sixty one bacteria were isolated from cultured olive flounder Paralichthys olivaceus in Korea and the isolates consisted of Edwardsiella tarda (n=32), Vibrio ichthyoenteri (n=37), Vibrio spp. (n=54), Streptococcus parauberis (n=28) and Streptococcus spp. (n=10). These E. tarda isolates were highly resistant in the order of tetracycline (84.4%) and oxolinic acid (71.9%). V. ichthyoenteri and Vibrio spp. showed resistance ampicillin (94.6% and 81.5%) and tetracycline (56.8% and 42.6%). S. parauberis isolates were resistant ampicillin (57.1%), tetracycline (57.1%) and erythromycin (35.7%). Of the isolates, 84.4% of E. tarda, 73.0% of V. ichthyoenteri, 57.4% of Vibrio spp., 42.8% of S. parauberis and 70.0% of Streptococcus spp. isolates exhibited multi-drug resistance against more than two antibiotics.