TY - JOUR
T1 - Antimicrobial susceptibility and strain prevalence of Korean vaginal Lactobacillus spp.
AU - Choi, Soo Young
AU - Chang, Chung Eun
AU - Kim, Seung Cheol
AU - So, Jae Seong
N1 - Funding Information:
This study was supported by Center for Advanced Bioseparation Technology (ERC-BSEP), Inha University.
PY - 2003/12
Y1 - 2003/12
N2 - One hundred eight vaginal lactobacilli were isolated from Korean women and characterized in terms of their antibiotics susceptibility and PCR-RFLP (polymerase chain reaction-restriction fragment length polymorphism) pattern. The in vitro antibiotics susceptibilities of 108 vaginal isolates to 13 antimicrobial agents were determined by broth dilution method based on NCCLS reference protocol. High rates of resistance were demonstrated for gentamicin, kanamycin, metronidazole, and streptomycin whereas all the isolates were susceptible to erythromycin. The concentrations of gentamicin, kanamycin, metronidazole, streptomycin, and erythromycin at which 90% of the vaginal isolates were inhibited (MIC90) were 100, 200, >200, 200 and 0.39μg/mL, respectively. For molecular identification, PCR-RFLP analysis was employed where the 16S rDNA was amplified by PCR and the PCR products were digested with 8 different restriction endonucleases prior to being electrophoresed in agarose gels. Based on PCR-RFLP results, approximately half of the isolates were identified as Lactobacillus crispatus. Several isolates were further identified by DNA sequence analysis of their 16S rDNA.
AB - One hundred eight vaginal lactobacilli were isolated from Korean women and characterized in terms of their antibiotics susceptibility and PCR-RFLP (polymerase chain reaction-restriction fragment length polymorphism) pattern. The in vitro antibiotics susceptibilities of 108 vaginal isolates to 13 antimicrobial agents were determined by broth dilution method based on NCCLS reference protocol. High rates of resistance were demonstrated for gentamicin, kanamycin, metronidazole, and streptomycin whereas all the isolates were susceptible to erythromycin. The concentrations of gentamicin, kanamycin, metronidazole, streptomycin, and erythromycin at which 90% of the vaginal isolates were inhibited (MIC90) were 100, 200, >200, 200 and 0.39μg/mL, respectively. For molecular identification, PCR-RFLP analysis was employed where the 16S rDNA was amplified by PCR and the PCR products were digested with 8 different restriction endonucleases prior to being electrophoresed in agarose gels. Based on PCR-RFLP results, approximately half of the isolates were identified as Lactobacillus crispatus. Several isolates were further identified by DNA sequence analysis of their 16S rDNA.
KW - Antimicrobial susceptibility
KW - MIC
KW - Molecular identification
KW - PCR-RFLP
KW - Vaginal lactobacilli
UR - http://www.scopus.com/inward/record.url?scp=0344982973&partnerID=8YFLogxK
U2 - 10.1016/j.anaerobe.2003.09.001
DO - 10.1016/j.anaerobe.2003.09.001
M3 - Article
C2 - 16887711
AN - SCOPUS:0344982973
SN - 1075-9964
VL - 9
SP - 277
EP - 280
JO - Anaerobe
JF - Anaerobe
IS - 6
ER -