Search Results

One hundred and thirty trimethoprim-resistant R plasmids derived from of Escherichia coli isolated from clinical specimens and feces of healthy collegians were examined for incompatibility, EcoRI endonuclease restriction fragment pattern, and Southern hybridization with DHFR I, II, III, V, and VII probe. 1. Most trimethoprim-resistant R plasmids were resistant to ampicillin, tetracycline, chloramphenicol, gentamicin, and kanamycin, and showed multiple drug resistance and various antimicrobial resistance patterns. 2. Trimethoprim-resistant R plasmids ranged from 90 to 50 kilobase and 42.3% of R plasmids tested were classified to incompatibilty group Inc FI, Inc FII or Inc FIV, 3. Among 48 random selected R plasmids from various origin, 14 R plasmids (including 9 of 14 Inc FII plasmids and 3 of 14 Inc FI plasmids) hybridized with DHFR VII oligonucleotide probe but others did not respond to any of DHFR probes used. 4. Most R plasmids showed various EcoRI endonuclease fragments and different reaction sites by Southern hybridization. Six plasmids showed identical or nearly identical molecular weight, EcoRI endonuclease fragment patterns and different sites of Southern hybridization. But 2 Inc FII plasmids derived from urine and feces showed identical pattern. These findings, if confirmed by further studies, suggest that normal flora E. coli can act as reservoir of resistant genes and, consequently, as a factor in the dissemination of these genes among enteric pathogens and need to be examined further.
Ampicillin ; Chloramphenicol ; Deoxyribonuclease EcoRI ; Drug Resistance, Multiple ; Escherichia coli* ; Escherichia* ; Feces ; Gentamicins ; Immunodeficiency Virus, Feline ; Kanamycin ; Molecular Biology* ; Molecular Weight ; Plasmids ; R Factors ; Tetracycline ; Trimethoprim Resistance* ; Trimethoprim*

9.Phenotypic characterization of pseudomonas aeruginosa by pyocin typing of two different methods.

Chang Ho LEE ; Yoo Chul LEE ; Dong Taek CHO ; Sung Yong SEOL

Journal of the Korean Society for Microbiology 1991;26(2):135-146

10.Emergent Endovascular Treatment of Ruptured Dissecting Aneurysm of the Intradural Vertebral Artery Using a Self-Expandable Intracranial Stent and a Bioactive Hydrophilic coil.

Sang Il SUH ; Hae Young SEOL ; Taik Kun KIM ; Nam Joon LEE ; Jung Hyuk KIM ; Taek Hyun KWON

Neurointervention 2007;2(2):109-112

1.Binding of fibronectin to staphylococcus aureus.

2.Expired cases in oral and maxillofacial field;report of six cases from 1989 to july 1992 and review of the literature.

3.Treatment of tetanus:a case report.

4.Expired cases in oral and maxillofacial field;report of six cases from 1989 to july 1992 and review of the literature.

5.Treatment of tetanus:a case report.

6.Molecular genetic analysis of non-transferable antimicrobial resistance of shigella isolates.

7.In vivo characterization of virulence associated gene expression: II. plasmid-encoded aerobactin production and transferableantimicrobial resistance in E. coli.

8.Molecular Genetic Characteristics of Trimethoprim Resistance in Clinical and Normal Fecal Isolates of Escherichia coli.

9.Phenotypic characterization of pseudomonas aeruginosa by pyocin typing of two different methods.

10.Emergent Endovascular Treatment of Ruptured Dissecting Aneurysm of the Intradural Vertebral Artery Using a Self-Expandable Intracranial Stent and a Bioactive Hydrophilic coil.

Display Mode

Output Records

File Type