1.Laboratory diagnosis of tuberculosis using non-immunological tools.
Tuberculosis and Respiratory Diseases 1991;38(3):217-221
No abstract available.
Clinical Laboratory Techniques*
;
Tuberculosis*
2.Seroactivities to Phenolic Glycolipid I of Mycobacterium leprae Among Leprosy Patients in National sorokdo Hospital and Their Children.
Kyu Kwang HWANG ; Sang Nae CHO
Korean Journal of Dermatology 1988;26(4):513-517
Using ELlSA, 83 sera from leprosy patients in National Sorokdo Hospital who are clessified bacteriologically positive and 40 sera from patient's children were tested for a.ntibedy to phenolic glycolipid I of M. leprae. The following results were obtained. I. Non. of 40 contact children was pasitive to PGL- I. 2. Patiente with high bacterial indices were more likely to have antibodies to PGL,- 1. Although the antibody level declined, in general, after multi-drug therapy (MDT), t.here were quite a few with high circulating antibodiees to PGL- I even among the patients bacteriologically below 2.
Antibodies
;
Child*
;
Enzyme-Linked Immunosorbent Assay
;
Humans
;
Leprosy*
;
Mycobacterium leprae*
;
Mycobacterium*
;
Phenol*
3.Prevalence of antibodies to the coxiella burnetii phase II antigen among residents in korea.
Sang Nae CHO ; Sun Hee BAEK ; Yun Sop CHONG ; Joo Deuk KIM ; Won Young LEE
Journal of the Korean Society for Microbiology 1993;28(3):223-228
No abstract available.
Antibodies*
;
Coxiella burnetii*
;
Coxiella*
;
Korea*
;
Prevalence*
4.Construction of a Mycobacterium - Escherichia coli Shuttle Vector and Use in the Expression of Foreign Genes in Mycobacteria.
Sang Nae CHO ; Joo Deuk KIM ; Hye Young LEE ; Hee Jin KIM
Journal of the Korean Society for Microbiology 1997;32(3):293-300
The ability to introduce recombinant DNA molecules back into mycobacteria would greatly increase the potential of molecular genetic approaches for the study of mycobacteria as well as for the use in clinical purposes. We have initiated the construction of vectors that facilitates the introduction of recombinant DNA into mycobacteria. The vector was designed to contain replicons for multiplication in mycobacteria and Escherichia coli, a promoter for gene expression, a drug resistant gene for selecting transformants, and a few restriction enzyme sites for convenient cloning. Constructed Mycobacterium-E. coli shuttle vector named p YMC (hsp60) was shown to transform M. smegmatis at high efficiency and maintain plasmid at stable level. The ability of the vector to express cloned foreign gene was also monitored by measuring the expressed level of luciferase gene which was used as a reporter. High level of luciferase activity in M. smegmatis with pYMC (hsp60:luc) was detected confirming successful construction of Mycobacterium-E. coli shuttle vector.
Clone Cells
;
Cloning, Organism
;
DNA, Recombinant
;
Escherichia coli*
;
Escherichia*
;
Gene Expression
;
Genetic Vectors*
;
Luciferases
;
Molecular Biology
;
Mycobacterium*
;
Plasmids
;
Replicon
5.Determination of DNA-DNA Hybridization Condition for Rapid Identification of Mycobacterium Species.
Yun Sop CHONG ; Sang Nae CHO ; Kyung Won LEE ; Hong Seok PARK
Journal of the Korean Society for Microbiology 1999;34(2):137-145
Rapid identification of Mycobacterium spp. isolated from patients is important with increased isolation of mycobacteria other than tubercle bacilli (MOTT). DNA-DNA hybridization with streptavidin-peroxidase and tetramethylbenzidine (TMB) color reaction method was recognized as a useful tool for identification of various species of mycobacteria. In this study, optimum condition of the test was determined. The optimal concentrations of tetramethylbenzidine dihydrochloride and hydrogen peroxide for streptavidin-horseradish peroxidase were 0.3-0.6 ug/ ml and 0.16 mM, respectively. The TMB stock solution was stable when prepared in methanol and the dilution of TBM stock solution in 10 mM sodium citrate-10 mM EDTA solution (pH 5.0) gave highest peroxidase-TMB activity. The suitable composition of hybridization solution consisted of 2 x SSC, 10% dextran sulfate, 50 ug/ml salmon DNA, 5 x Denhardt's solution, and 50% formamide. The 5-minute heating at 100C of test DNA prior to photobiotin labeling significantly increased the reaction. In conclusion, DNA-DNA hybridization method with streptavidin-peroxidase and TMB color reaction method may be useful for rapid identification of Mycobacterium spp. isolated from patients.
Dextran Sulfate
;
DNA
;
Edetic Acid
;
Heating
;
Hot Temperature
;
Humans
;
Hydrogen Peroxide
;
Methanol
;
Mycobacterium*
;
Peroxidase
;
Salmon
;
Sodium
6.A Case of Conjoined Twins.
Hyun Joo CHOI ; Eun Sil KIM ; In Sang JEON ; Myung Chul CHO ; Kwang Jeon KIM ; Nae In LIM
Journal of the Korean Pediatric Society 1990;33(11):1562-1566
No abstract available.
Twins, Conjoined*
7.Lyme disease.
Min Geol LEE ; Kee Yang CHUNG ; Yong CHOI ; Sang Nae CHO
Korean Journal of Dermatology 1993;31(4):601-605
Lyme disease is an infecious disease caused by Borrelia burgdorfieii and has been reported world-wide. The spirochete invades multiple organs and induces manifesations in the skin, joints, neri us and cardiovascular systems. 13espite a considerable amount of serological evidence and isolation of R burgdorferi in ticks, no human case has yet been reported in korea. In this report, we present the first clinical case of Lyme disease in Korea. A female patient, 26 years old, developed clinical signs of eryth m,i chronicum migpans about ten days after traveling to a rural area and responded well to treatment ith entibiotions. Laboratory tests showed elevated IgM and IgG responses to B. burgdorferi, and a spirociete was found in a skin biopsy by electron microscopy.
Adult
;
Biopsy
;
Borrelia
;
Borrelia burgdorferi
;
Cardiovascular System
;
Female
;
Humans
;
Immunoglobulin G
;
Immunoglobulin M
;
Joints
;
Korea
;
Lyme Disease*
;
Microscopy, Electron
;
Skin
;
Spirochaetales
;
Ticks
8.Comparison of enzyme-linked immunosorbent assay, indirect immunofluorescent antibody test and indirect immunoperoxidase antibody test in setecting antibodies to rickettsia tsutsugamushi.
Jeon Soo SHIN ; Sang Nae CHO ; Millina LEE ; Yunsop CHONG ; Joo Deuk KIM
Journal of the Korean Society for Microbiology 1991;26(1):79-85
No abstract available.
Antibodies*
;
Enzyme-Linked Immunosorbent Assay*
;
Orientia tsutsugamushi*
;
Rickettsia*
9.Detection of Antibodies to Nerve Antigens in Sera from Leprosy Patients and Relevance to the Nerve Damage.
Sang Nae CHO ; Joo Deuk KIM ; Gerald P WALSH ; Sun PARK
Korean Journal of Immunology 1997;19(4):463-470
No abstract available.
Antibodies*
;
Humans
;
Leprosy*
10.Characteristics of methicillin-resistant staphylococcus aureus isolates from various clinical materials.
Yoon Jeong DOH ; Sang Nae CHO ; Yunsop CHONG ; Samuel Y LEE
Korean Journal of Clinical Pathology 1991;11(2):425-434
No abstract available.
Methicillin Resistance*
;
Methicillin-Resistant Staphylococcus aureus*