Parasites, Hosts and Diseases

"Hyung-Jun Noh"

Original Articles

Epidemiological study of clonorchiasis and metagonimiasis along the Geum-gang (River) in Okcheon-gun (County), Korea: Gye-Sung Lee, In-Sung Cho, Young-Ha Lee, Hyung-Jun Noh, Dae-Whan Shin, Sok-Goo Lee, Tae-Yong Lee; Korean J Parasitol 2002;40(1):9-16.
Published online March 31, 2002; DOI: https://doi.org/10.3347/kjp.2002.40.1.9

Abstract
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The endemic status of clonorchiasis and metagonimiasis along the Geum-gang (River) in Okcheon-gun (County) in Korea was examined. From February to December 2000, stools of total 1,081 inhabitants living in 5 villages were examined. Each stool specimen was examined by both the cellophane thick smear method and the formalin-ether sedimentation technique. Egg-positive cases were further analyzed by Stoll's egg-counting technique, and praziquantel was administered to positive cases. The egg-positive rates for Clonorchis sinensis and Metagonimus species were 9.3% and 5.5%, respectively, and the double infection rate was 3.5%. The numbers of eggs per gram (EPG) of feces of C. sinensis and Metagonimus sp. were 918±1,463 and 711±947, respectively. The egg-positive rates for C. sinensis and Metagonimus sp. in the riverside area were 14.2% and 8.4%, respectively, which were significantly higher than those of the inland area (3.2% and 1.7%, respectively). The egg-positive rates of C. sinensis and Metagonimus sp. in males (16.7% and 10.0%) were significantly higher than those of females (3.5% and 1.8%). However, there were no significant differences of EPG values between localities and sexes. The prevalence of clonorchiasis and metagonimiasis in this survey was significantly lower than that in the previous reports. However, there is still a high prevalence of infection with C. sinensis and Metagonimus sp. in this region, especially in the riverside area.

Citations

Citations to this article as recorded by

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Parasites, Hosts and Diseases.2024; 62(1): 1. CrossRef
Age, period, and cohort effects of Clonorchis sinensis infection prevalence in the Republic of Korea: Insights and projections
Sung-mok Jung, Heewon Kang, Bong-Kwang Jung, Sejin Ju, Jung-Won Ju, Myoung-Ro Lee, Jong-hun Kim, Sung Hye Kim, Ran Wang
PLOS Neglected Tropical Diseases.2024; 18(10): e0012574. CrossRef
Risk factors for Clonorchis sinensis infections and control measures reinforced with focused interviews
Soon-Ok Lee, Fuhong Dai, Eun Joo Park, Yun Pyo Hong, Fu-Shi Quan, Jin-Ho Song, Sung-Jong Hong
Parasitology Research.2024;[Epub] CrossRef
The spatial-temporal risk profiling of Clonorchis sinensis infection over 50 years implies the effectiveness of control programs in South Korea: a geostatistical modeling study
Hai-Yan Xiao, Jong-Yil Chai, Yue-Yi Fang, Ying-Si Lai
The Lancet Regional Health - Western Pacific.2023; 33: 100697. CrossRef
Infection Characteristics of Clonorchis sinensis Metacercariae in Fish from Republic of Korea
Woon-Mok Sohn
The Korean Journal of Parasitology.2022; 60(2): 79. CrossRef
Survey of Zoonotic Trematode Metacercariae in Fish from Water Systems of Geum-gang (River) in Republic of Korea
Woon-Mok Sohn, Byoung-Kuk Na, Shin-Hyeong Cho, Cheon-Hyeon Kim, Min-Ah Hwang, Kyeong-Woo No, Jai-Dong Kim
The Korean Journal of Parasitology.2021; 59(1): 23. CrossRef
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Kharleezelle J. Moendeg, Lydia R. Leonardo, Trina Galido Isorena, Francine Claire Alexandra S. Hilotina, Imelda S. Pates, Nancy O. Cacayorin
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Journal of Ethnic Foods.2020;[Epub] CrossRef
Metagonimus yokogawai Ancient DNA Recovered from 16th- to 17th-Century Korean Mummy Feces of the Joseon Dynasty
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Journal of Parasitology.2020;[Epub] CrossRef
A new method for estimating the prevalence of clonorchiasis in Korea
Jin-Young Jeong, Jin Yong Lee, Byung-Suk Chung, Younghyun Choi, Allison Baer Alley, Hyun Joo Kim
Medicine.2017; 96(13): e6536. CrossRef
Epidemiological and Clinical Parameters Features of Patients with Clonorchiasis in the Geum River Basin, Republic of Korea
Hee-Eun Shin, Myoung-Ro Lee, Jung-Won Ju, Byong-Suk Jeong, Mi-Yeoun Park, Keoung-Sook Lee, Shin-Hyeong Cho
Interdisciplinary Perspectives on Infectious Diseases.2017; 2017: 1. CrossRef
Prevalence and Related Factors of Clonorchiasis among Five Major Riverside Residents in South Korea
Chunmi Kim, Kyung Ja June, Shin Hyeong Cho, Kyung Soon Park, Hung Sa Lee, Ji Yeon Park
Journal of Korean Academy of Community Health Nursing.2016; 27(4): 346. CrossRef
Prevalence and Risk Factors of Clonorchiasis among Residents of Riverside Areas in Muju-gun, Jeollabuk-do, Korea
Do-Soon Park, Sung-Jin Na, Shin Hyeong Cho, Kyung Ja June, Young-Chae Cho, Young-Ha Lee
The Korean Journal of Parasitology.2014; 52(4): 391. CrossRef
A Study on the Prevalence of Clonorchis Sinensis and the Effects of Educational Program among Residents in the Basin of the Youngsan River, Korea
Chunmi Kim, Aeyoung So, Kyung-Ja June, Hee Young Jung
Journal of Korean Academy of Community Health Nursing.2011; 22(1): 56. CrossRef
Prevalence of Clonorchis sinensis Infections Along the Five Major Rivers in Republic of Korea, 2007
Hyun-Kyung Kim, Hyeng-Il Cheun, Byung-Suk Cheun, Ki-Yeon Lee, Tong-Soo Kim, Sang-Eun Lee, Won-ja Lee, Shin-Hyeong Cho
Osong Public Health and Research Perspectives.2010; 1(1): 43. CrossRef
Analysis of Parasitic Diseases Diagnosed by Tissue Biopsy Specimens at KyungHee Medical Center (1984-2005) in Seoul, Korea
Won-Hyung Choi, Jong-Phil Chu, Meihua Jiang, Yun-Sik Lee, Bum-Shik Kim, Deog-Gon Kim, Yong-Koo Park
The Korean Journal of Parasitology.2010; 48(1): 85. CrossRef
A Nationwide Survey on the Prevalence of Intestinal Parasitic Infections in the Republic of Korea, 2004
Tong-Soo Kim, Shin-Hyeong Cho, Sun Huh, Yoon Kong, Woon-Mok Sohn, Seung-Sik Hwang, Jong-Yil Chai, Soon-Hyung Lee, Yun-Kyu Park, Dae-Kyu Oh, Jong-Koo Lee
The Korean Journal of Parasitology.2009; 47(1): 37. CrossRef
Prevalence of Clonorchiasis in Southern Endemic Areas of Korea in 2006
Shin-Hyeong Cho, Ki-Yeon Lee, Byung-Chul Lee, Pyo-Yun Cho, Hyeong-Il Cheun, Sung-Tae Hong, Woon-Mok Sohn, Tong-Soo Kim
The Korean Journal of Parasitology.2008; 46(3): 133. CrossRef
Emerging Foodborne Trematodiasis
Jennifer Keiser, Jürg Utzinger
Emerging Infectious Diseases.2005; 11(10): 1507. CrossRef
A Bile Based Study of Clonorchis sinensis Infections in Patients with Biliary Tract Diseases in Ulsan, Korea
Kwang Ro Joo, Sung-Jo Bang
Yonsei Medical Journal.2005; 46(6): 794. CrossRef
Sequence comparisons of 28S ribosomal DNA and mitochondrial cytochrome c oxidase subunit I of Metagonimus yokogawai, M. takahashii and M. miyatai
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The Korean Journal of Parasitology.2004; 42(3): 129. CrossRef
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Ke-Xia Wang, Rong-Bo Zhang, Yu-Bao Cui, Ye Tian, Ru Cai, Chao-Pin Li
World Journal of Gastroenterology.2004; 10(3): 446. CrossRef
The Kato-Katz method is reliable for diagnosis of Clonorchis sinensis infection
Sung-Tae Hong, Min-Ho Choi, Chung-Hyun Kim, Byung-Suk Chung, Zhuo Ji
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Infection status of Clonorchis sinensis in residents of Hamyang-gun, Gyeongsangnam-do, Korea
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The Korean Journal of Parasitology.2002; 40(4): 191. CrossRef

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Effects of specific monoclonal antibodies to dense granular proteins on the invasion of Toxoplasma gondii in vitro and in vivo: Dong Yeob Cha, In Kwan Song, Gye Sung Lee, Ok-Sun Hwang, Hyung-Jun Noh, Seung-Dong Yeo, Dae-Whan Shin, Young-Ha Lee; Korean J Parasitol 2001;39(3):233-240.
Published online September 30, 2001; DOI: https://doi.org/10.3347/kjp.2001.39.3.233

Abstract
PDF

Although some reports have been published on the protective effect of antibodies to Toxoplasma gondii surface membrane proteins, few address the inhibitory activity of antibodies to dense granular proteins (GRA proteins). Therefore, we performed a series of experiments to evaluate the inhibitory effects of monoclonal antibodies (mAbs) to GRA proteins (GRA2, 28 kDa; GRA6, 32 kDa) and surface membrane protein (SAG1, 30 kDa) on the invasion of T. gondii tachyzoites. Passive immunization of mice with one of three mAbs following challenge with a lethal dose of tachyzoites significantly increased survival compared with results for mice treated with control ascites. The survival times of mice challenged with tachyzoites pretreated with anti-GRA6 or anti-SAG1 mAb were significantly increased. Mice that received tachyzoites pretreated with both mAb and complement had longer survival times than those that received tachyzoites pretreated with mAb alone. Invasion of tachyzoites into fibroblasts and macrophages was significantly inhibited in the anti-GRA2, anti-GRA6 or anti-SAG1 mAb pretreated group. Pretreatment with mAb and complement inhibited invasion of tachyzoites in both fibroblasts and macrophages. These results suggest that specific antibodies to dense-granule molecules may be useful for controlling infection with T. gondii.

Citations

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Frontiers in Immunology.2025;[Epub] CrossRef
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Vaccine.2007; 25(21): 4301. CrossRef

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Seroepidemiological study of Toxoplasma gondii infection in the rural area Okcheon-gun, Korea: Young-Ha Lee, Hyung-Jun Noh, Ok-Sun Hwang, Sang-Keol Lee, Dae-Whan Shin; Korean J Parasitol 2000;38(4):251-256.
Published online December 31, 2000; DOI: https://doi.org/10.3347/kjp.2000.38.4.251

Abstract
PDF

There have been some reports about the prevalence of anti-Toxoplasma gondii antibody among Koreans, and most of all data were taken from patients visiting hospitals. However, the epidemiological data of the community-based study in Korea are rare. This study was performed to evaluate the seroprevalence of toxoplasmosis among the inhabitants of the rural area Okcheon-gun, Korea. A total of 1,109 serum samples (499 males, 610 females) were examined for the IgG antibodies by ELISA. To set up the cut-off point for ELISA, we used a commercial latex agglutination (LA) kit. The sensitivity and specificity of ELISA against LA test were 89.5%, and 98.6% respectively. Among 1,109 sera, 6.9% showed seropositivity by ELISA. The positive rates of males and females were 6.0% and 7.2%, respectively. However, there were no significant differences between sexes. Comparing the age groups, the highest seropositive rate showed in the seventies or higher, and their rates had a tendency to increase with age (0.05 < p < 0.3). These results revealed that the seroprevalence of toxoplasmosis in rural inhabitants is similar to previous reports in Korea; however we need further investigation to clarify the prevalence of toxoplasmosis in the general population.

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