Parasites, Hosts and Diseases

"Du-Ho Lee"

Brief Communications

Intestinal parasite infections at an institution for the handicapped in Korea: Jongweon Lee, Gab-Man Park, Du-Ho Lee, Soon-Jung Park, Tai-Soon Yong; Korean J Parasitol 2000;38(3):179-181.
Published online September 30, 2000; DOI: https://doi.org/10.3347/kjp.2000.38.3.179

Abstract
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Stool and cellotape anal swab examinations were carried out in August 1997 on handicapped people at an institution located in Chorwon-gun, Kangwon-do, Korea. A total of 112 stool samples (78 males and 34 females) revealed three cases of Trichuris trichiura infection and one case of Enterobius vermicularis infection. Other helminth eggs were not detected. The overall prevalence rate was 35.7% (38.5% for males and 29.4% for females). More than two different kinds of parasites were found in 42.0% of the positive stool samples (17 cases). The infection rates for protozoan cysts are as follow: Entamoeba coli (25.0%), E. histolytica (1.8%), Endolimax nana (21.4%), Iodoamoeba b?tschlii (1.8%) and Giardia lamblia (0.9%). In cellotape anal swab examinations (165 samples), the prevalence rate of E. vermicularis was 20.6% (25.7% of males and 9.6% of females). In conclusion, the handicapped people in the institution showed higher infection rates of protozoan parasites and E. vermicularis, possibly due to more accessibility to the infection.

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Infection, Genetics and Evolution.2008; 8(5): 698. CrossRef

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Axenic cultivation and characterization of Giardia lamblia isolated from humans in Korea: Soon-Jung Park, Tai-Soon Yong, Hye-Won Yang, Du-Ho Lee, Kyungwon Lee; Korean J Parasitol 1999;37(2):121-125.
Published online June 30, 1999; DOI: https://doi.org/10.3347/kjp.1999.37.2.121

Abstract
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Inoculating of human fecal cysts to suckling Mongolian gerbils, two Giardia lamblia isolates, K1 and K2, were established as axenic cultures. Using this in vitro culture, both isolates were characterized as a "medium-rate grower" upon its growth pattern. These two Giardia isolates were grouped by using two genetic analysis. With genetic analysis of SSU-rDNA sequences, both K1 and K2 were found as members of Hopkins' group 1, despite some nucleotide differences noticed in K1 (5 differences/292 bases). The other genetic study used PCR-RFLP of the tim (triose phosphate isomerase) gene. Both of K1 and K2 were found to belong to Nash's group 2. Our results suggest that Nash's group 2 can not be a separate group, but a part of Hopkins' group 1.

Citations

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Host specificity in the Giardia duodenalis species complex
Simone M. Cacciò, Marco Lalle, Staffan G. Svärd
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Impaired Parasite Attachment as Fitness Cost of Metronidazole Resistance in Giardia lamblia
Noa Tejman-Yarden, Maya Millman, Tineke Lauwaet, Barbara J. Davids, Frances D. Gillin, Linda Dunn, Jacqueline A. Upcroft, Yukiko Miyamoto, Lars Eckmann
Antimicrobial Agents and Chemotherapy.2011; 55(10): 4643. CrossRef
Evaluation of α-Tubulin as an Antigenic and Molecular Probe to Detect Giardia lamblia
Juri Kim, Myeong Heon Shin, Kyoung-Ju Song, Soon-Jung Park
The Korean Journal of Parasitology.2009; 47(3): 287. CrossRef
Detection and genotyping of Giardia intestinalis isolates using intergenic spacer (IGS)-based PCR
Jong-Ho Lee, Jongweon Lee, Soon-Jung Park, Tai-Soon Yong, Ui-Wook Hwang
The Korean Journal of Parasitology.2006; 44(4): 343. CrossRef
Genotyping of Giardia lamblia Isolates from Humans in China and Korea Using Ribosomal DNA Sequences
T.-S. Yong, S.-J. Park, U.-W. Hwang, H.-W. Yang, K.-W. Lee, D.-Y. Min, H.-J. Rim, Y. Wang, F. Zheng
Journal of Parasitology.2000; 86(4): 887. CrossRef

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Original Article

Immunodiagnosis of clonorchiasis using a recombinant antigen: Tai-Soon Yong, Hye-Jin Yang, Soon-Jung Park, Yu-Kyoung Kim, Du-Ho Lee, Sang-Mi Lee; Korean J Parasitol 1998;36(3):183-190.
Published online September 30, 1998; DOI: https://doi.org/10.3347/kjp.1998.36.3.183

Abstract
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A cDNA expression library of Clonorchis sinensis adult worm was constructed, and screened out immunologically. One clone, pBCs31, was selected in view of its predominant reactivity with an experimentally infected rabbit serum. Recombinant C. sinensis antigen with 28 kDa as a β-galactosidase fusion protein produced in Escherichia coli was identified by immunoblot analysis. The cloned gene was composed of 16 copies of a 30 base pair repeat and an additional 320 bases. The deduced amino acid sequence of the tandem repeat was AQPPKSGDGG. On RNA slot blot analysis. C. sinensis adult worm RNA showed a positive reaction with the cloned gene. Enzyme-linked immunosorbent assay using a purified recombinant antigen of pBCs31 showed high specificity for diagnosis of clonorchiasis.

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PLOS Neglected Tropical Diseases.2024; 18(4): e0012107. CrossRef
Serodiagnostic antigens of Clonorchis sinensis identified and evaluated by high-throughput proteogenomics
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Development of a polymerase chain reaction applicable to rapid and sensitive detection ofClonorchis sinensiseggs in human stool samples
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