1
|
Sohn WM. Infection characteristics of Metagonimus species (Digenea: Heterophyidae) metacercariae in fish from major rivers of Korea. PARASITES, HOSTS AND DISEASES 2024; 62:1-29. [PMID: 38443767 PMCID: PMC10915262 DOI: 10.3347/phd.23096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 12/25/2023] [Indexed: 03/07/2024]
Abstract
This article analyzed the infection characteristics of metacercariae of Metagonimus spp. (MsMc) in fish from 9 major water systems in Korea. A total of 19,568 fish in 87 species were examined over a period of 10 years (2011-2020). MsMc were detected in fish from all 44 survey areas in 9 water systems. Most of the surveyed sites showed very low and low infection levels (66.7%), while 33.3% of the areas, such as Tamjin-gang and Seomjin-gang, revealed moderate and high infection levels. High endemicity depends on the abundance of susceptible fish species, especially sweet smelt (Plecoglosus altivelis). The susceptibility index (SI) with MsMc in index fish, Zacco spp., was very low and low levels in 62.0%, moderate in 28.0%, and high in 10.0% regions. The SI was highest in the following order: Yeongam-cheon (283.8), Hoeng-cheon (192.3), Togyo-jeosuji (131.2), Deokcheon-gang (119.1), and Joyang-gang (106.3). The recent infection status of MsMc in P. altivelis was analyzed by the survey localities. In addition, except for P. altivelis, 9 fish species were highly infected with MsMc in some survey areas, including Zacco platypus, Z. koreanus, Z. temminckii, Opsariichthys uncirostris, Rhynchocypris oxycephalus, Carassius auratus, Acheilognathus rhombeus, Onchorhynchus masou, and Tribolodon hakonensis. In Korea, 74 fish species (15 families) are collectively listed as second intermediate hosts of Metagonimus spp. This review provides several novel characteristics of MsMc infection and clarifies the fish species of second intermediate host of Metagonimus spp. in this country.
Collapse
Affiliation(s)
- Woon-Mok Sohn
- Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University College of Medicine, Jinju 52727,
Korea
| |
Collapse
|
2
|
Kim HS, Nam HW, Ahn HJ, Kim D, Kim YH. Relationship between Clonorchis sinensis Infection and Cholangiocarcinoma in Korea. THE KOREAN JOURNAL OF PARASITOLOGY 2022; 60:261-271. [PMID: 36041488 PMCID: PMC9441450 DOI: 10.3347/kjp.2022.60.4.261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 07/28/2022] [Indexed: 12/02/2022]
Abstract
This study provides an overview of the current status of clonorchiasis and cholangiocarcinoma (CCA), and their relationship in Korea during 2012–2020. Data were obtained from the Health Insurance Review & Assessment Service of Korea. Cluster, trend, and correlation analyses were performed. Gyeongsangnam-do and Seoul had the highest average number of cases (1,026 and 4,208) and adjusted rate (306 and 424) for clonorchiasis and CCA, respectively. The most likely clusters (MLC) for clonorchiasis and CCA were Busan/Gyeongsangnam-do/Ulsan/Daegu/Gyeongsangbuk-do (Relative Risk; RR=4.55, Likelihood Ratio; LLR=9,131.115) joint cluster and Seoul (RR=2.29, LLR=7,602.472), respectively. The MLC for clonorchiasis was in the southeastern part of Korea, while that for CCA was in the southern part. Clonorchiasis showed a decreasing trend in the southeastern districts, while increased in the southwestern districts. Cities in the central region had a decreasing trend, while the western districts had an increasing trend. In most adults (30–59), infection rate of clonorchiasis showed a significant decrease until 2018, while thereafter increased, although not significant. CCA showed a sharply decreasing tendency. The incidence of clonorchiasis and CCA were positively correlated. In general, the correlation was weak (r=0.39, P<0.001), but it was strongly positive around the 4 river basins (r=0.74, P<0.001). This study might provide an analytic basis for developing an effective system against clonorchiasis and CCA.
Collapse
Affiliation(s)
- Hwa Sun Kim
- Department of Family Medicine, Veterans Health Service Medical Center, Seoul 05368, Korea
| | - Ho-Woo Nam
- Department of Parasitology, College of Medicine, Catholic University of Korea, Seoul 06591, Korea
| | - Hye-Jin Ahn
- Department of Parasitology, College of Medicine, Catholic University of Korea, Seoul 06591, Korea
| | - Dongjae Kim
- Department of Biomedicine Health Science, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
| | - Yeong Hoon Kim
- Department of Ophthalmology, College of Medicine, Catholic University of Korea, Seoul 06591, Korea
- Corresponding author ()
| |
Collapse
|
3
|
Current status of Clonorchis sinensis and clonorchiasis in Korea: epidemiological perspectives integrating the data from human and intermediate hosts. Parasitology 2022; 149:1296-1305. [PMID: 35698752 PMCID: PMC10090769 DOI: 10.1017/s0031182022000798] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Clonorchis sinensis is a carcinogenic liver fluke that causes clonorchiasis in humans. Clonorchiasis is prevalent in East Asian countries, and approximately 15–20 million individuals are estimated to be infected with this fluke globally. This review highlights the current status of C. sinensis and clonorchiasis in Korea from the epidemiological perspective involving the analysis of humans and intermediate hosts. Despite the recent decline in C. sinensis infection rate in Korea, C. sinensis infections remain endemic in 5 major river basins (Han-gang, Geum-gang, Seomjin-gang, Yeongsan-gang and Nakdong-gang; gang means river) with a high incidence of cholangiocarcinoma. A noticeable pattern involves increasing mild infections among patients diagnosed positive for C. sinensis eggs. The infection rate of C. sinensis metacercariae in the second intermediate host, freshwater fish, is also maintained at a substantial level. Thus, the One Health approach integrating different sectors and disciplines is recommended to accelerate and sustain control of C. sinensis, thereby leading to successful eradication. Health promotion via information dissemination and health education should be extended to prevent the consumption of raw freshwater fish by residents living in high-risk areas.
Collapse
|
4
|
Sohn WM. Infection Characteristics of Clonorchis sinensis Metacercariae in Fish from Republic of Korea. THE KOREAN JOURNAL OF PARASITOLOGY 2022; 60:79-96. [PMID: 35500890 PMCID: PMC9058273 DOI: 10.3347/kjp.2022.60.2.79] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 04/06/2022] [Indexed: 01/25/2023]
Abstract
The infection nature of Clonorchis sinensis metacercariae (CsMc) in freshwater fish hosts is closely related to the transmission of human clonorchiasis. This article reviewed the infection characteristics of CsMc in freshwater fish in the Republic of Korea (Korea). The status of CsMc infection was examined in a total of 17,792 cyprinid fish of 49 species in 9 water systems, which included Hantan-/Imjin-gang, Han-gang, Geum-gang, Mangyeong-gang, Yeongsan-gang, Tamjin-gang, Seomjin-gang, Nakdong-gang, and streams in the east coastal areas from 2010 to 2020. The infection status of CsMc was examined according to cyprinid fish species and water systems, after which analyzed by endemicity and susceptibility index. The high endemicity was shown in the cyprinid fish from 3 regions (6.1%) in the upper reaches of Nakdong-gang, such as Banbyeon-cheon (stream), Yongjeon-cheon, and Wi-cheon. The moderate levels were observed in fishes from 8 regions (16.3%), and low endemicity was shown in fishes from 20 regions (40.8%). No CsMc were detected in fish from 18 regions (36.7%). The susceptibility of CsMc in index fish, Puntungia herzi, was found to be a reliable index without examination of other fish species. CsMc infection rates were closely related to subfamily groups in the cyprinid fish hosts in a highly endemic area. In Korea, a total of 58 fish species in 10 families has been listed as the second intermediate hosts for C. sinensis. This review provides several novel features of CsMc infection and clarifies the species of second intermediate freshwater fish host in Korea.
Collapse
|
5
|
Sohn WM, Na BK, Cho SH, Lee HI, Ju JW, Lee MR, Park JG, Ahn J. Endemicity of Zoonotic Trematode Metacercariae in Fish from Deokcheon-gang (River) in Sancheong-gun, Gyeongsangnam-do, Republic of Korea. THE KOREAN JOURNAL OF PARASITOLOGY 2021; 59:523-529. [PMID: 34724774 PMCID: PMC8561055 DOI: 10.3347/kjp.2021.59.5.523] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Accepted: 10/09/2021] [Indexed: 12/01/2022]
Abstract
The endemicity of zoonotic trematode metacercariae (ZTM) was investigated with total 871 freshwater fishes (19 species) from Deokcheon-gang (a branch stream of Gyeongho-gang) in Sancheong-gun, Gyeongsangnam-do, Korea for 3 years (2018–2020). All fishes were examined with the artificial digestion method. The metacercariae of Clonorchis sinensis (CsMc) were detected in 233 (36.3%) out of 642 fish in 11 positive fish species (PFS), and their infection intensity was 27 per fish infected (PFI). Especially, in index fish, Puntungia herzi, of CsMc infection, prevalence was 64.2% and infection intensity was 37 PFI. Metagonimus spp. metacercariae (MsMc) were found in 760 (87.5%) out of 869 fish in 18 PFS and their infection intensity was 228 PFI. In sweet smelt, Plecoglossus altivelis, the prevalence of MsMc was 97.6% and their infection intensity was 3,570 PFI. Centrocestus armatus metacercariae were detected in 209 (29.4%) out of 710 fish in 8 PFS and their infection intensity was 1,361 PFI. Echinostoma spp. metacercariae were found in 293 (42.6%) out of 688 fish in 15 PFS and their infection intensity was 5 PFI. Metacercariae of Clinostomum complanatum and Metorchis orientalis were also detected in 2.7% and 21.2% fish in 4 PFS and their infection intensities were 3.1 and 3.4 PFI respectively. By the present study, it was confirmed that some species of ZTM including CsMc and MsMc are more or less prevalent in fishes from Deokcheon-gang in Sancheong-gun, Gyeongsangnam-do, Korea.
Collapse
Affiliation(s)
- Woon-Mok Sohn
- Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University College of Medicine, Jinju 52727, Korea
| | - Byoung-Kuk Na
- Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University College of Medicine, Jinju 52727, Korea
| | - Shin-Hyeong Cho
- ivision of Vectors and Parasitic Diseases, Korea Disease Control and Prevention Agency, Osong 28159, Korea
| | - Hee Il Lee
- ivision of Vectors and Parasitic Diseases, Korea Disease Control and Prevention Agency, Osong 28159, Korea
| | - Jung-Won Ju
- ivision of Vectors and Parasitic Diseases, Korea Disease Control and Prevention Agency, Osong 28159, Korea
| | - Myoung-Ro Lee
- ivision of Vectors and Parasitic Diseases, Korea Disease Control and Prevention Agency, Osong 28159, Korea
| | - Jeong-Gil Park
- Infectious Disease Research Division, Gyeongsangnam-do Provincial Government Institute of Health and Environment, Jinju 52732, Korea
| | - Jihee Ahn
- Infectious Disease Research Division, Gyeongsangnam-do Provincial Government Institute of Health and Environment, Jinju 52732, Korea
| |
Collapse
|
6
|
Brindley PJ, Bachini M, Ilyas SI, Khan SA, Loukas A, Sirica AE, Teh BT, Wongkham S, Gores GJ. Cholangiocarcinoma. Nat Rev Dis Primers 2021; 7:65. [PMID: 34504109 PMCID: PMC9246479 DOI: 10.1038/s41572-021-00300-2] [Citation(s) in RCA: 276] [Impact Index Per Article: 92.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/03/2021] [Indexed: 02/08/2023]
Abstract
Cholangiocarcinoma (CCA) is a highly lethal adenocarcinoma of the hepatobiliary system, which can be classified as intrahepatic, perihilar and distal. Each anatomic subtype has distinct genetic aberrations, clinical presentations and therapeutic approaches. In endemic regions, liver fluke infection is associated with CCA, owing to the oncogenic effect of the associated chronic biliary tract inflammation. In other regions, CCA can be associated with chronic biliary tract inflammation owing to choledocholithiasis, cholelithiasis, or primary sclerosing cholangitis, but most CCAs have no identifiable cause. Administration of the anthelmintic drug praziquantel decreases the risk of CCA from liver flukes, but reinfection is common and future vaccination strategies may be more effective. Some patients with CCA are eligible for potentially curative surgical options, such as resection or liver transplantation. Genetic studies have provided new insights into the pathogenesis of CCA, and two aberrations that drive the pathogenesis of non-fluke-associated intrahepatic CCA, fibroblast growth factor receptor 2 fusions and isocitrate dehydrogenase gain-of-function mutations, can be therapeutically targeted. CCA is a highly desmoplastic cancer and targeting the tumour immune microenvironment might be a promising therapeutic approach. CCA remains a highly lethal disease and further scientific and clinical insights are needed to improve patient outcomes.
Collapse
Affiliation(s)
- Paul J. Brindley
- Department of Microbiology, Immunology & Tropical Medicine, and Research Center for Neglected Diseases of Poverty, School of Medicine and Health Sciences, George Washington University, Washington, DC, USA
| | | | - Sumera I. Ilyas
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | - Shahid A. Khan
- Liver Unit, Division of Digestive Diseases, Imperial College London, London, UK
| | - Alex Loukas
- Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Queensland, Australia
| | - Alphonse E. Sirica
- Department of Pathology, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - Bin Tean Teh
- Laboratory of Cancer Epigenome, Division of Medical Sciences, National Cancer Centre, Singapore, Singapore
| | - Sopit Wongkham
- Department of Biochemistry, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Gregory J. Gores
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA,
| |
Collapse
|
7
|
Sohn WM, Na BK, Cho SH, Lee HI, Ju JW, Lee MR, Lim EJ, Son SY, Ko E, Choi J. Survey of Zoonotic Trematode Metacercariae in Fish from Irrigation Canal of Togyo-jeosuji (Reservoir) in Cheorwon-gun, Gangwon-do, Republic of Korea. THE KOREAN JOURNAL OF PARASITOLOGY 2021; 59:427-432. [PMID: 34470096 PMCID: PMC8413859 DOI: 10.3347/kjp.2021.59.4.427] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 07/21/2021] [Indexed: 11/29/2022]
Abstract
The infection status of zoonotic trematode metacercariae (ZTM) was investigated in total 568 freshwater fishes (19 species) from the irrigation canal of Togyo-jeosuji (Reservoir) in Cheorwon-gun, Gangwon-do, the Republic of Korea for 3 years (2018–2020). All fishes were examined using the artificial digestion method. The metacercariae of Clonorchis sinensis (CsMc) were detected in 180 (43.8%) out of 411 fish of positive species, and their infection intensity was 38 per fish infected (PFI). Especially, in 2 fish species, i.e., Pseudorasbora parva and Puntungia herzi, the prevalence was 82.1% and 31.3%, and the infection intensity with CsMc was 88 and 290 PFI, respectively. Metagonimus spp. metacercariae (MsMc) were found in 403 (74.1%) out of 544 fish of positive species, and their infection intensity was 62 PFI. In the pale chub, Zacco platypus, the prevalence of MsMc was 98.6%, and their infection intensity was 144 PFI. Centrocestus armatus metacercariae were detected in 171 (38.9%) out of 440 fish of positive species, and their infection intensity was 1,844 PFI. Echinostoma spp. metacercariae were found in 94 (19.6%) out of 479 fish of positive species, and their infection intensity was 3 PFI. Metorchis orientalis metacercariae were detected in 43 (29.3%) out of 147 fish of positive species, and their infection intensity was 4 PFI. By the present study, it has been confirmed that some species of ZTM, including CsMc and MsMc, are prevalent in fishes from the irrigation canal of Togyo-jeosuji in Cheorwon-gun, Gangwon-do, Korea.
Collapse
Affiliation(s)
- Woon-Mok Sohn
- Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University College of Medicine, Jinju 52727, Korea
| | - Byoung-Kuk Na
- Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University College of Medicine, Jinju 52727, Korea
| | - Shin-Hyeong Cho
- Division of Vectors and Parasitic Diseases, Korea Disease Control and Prevention Agency, Osong 28159, Korea
| | - Hee Il Lee
- Division of Vectors and Parasitic Diseases, Korea Disease Control and Prevention Agency, Osong 28159, Korea
| | - Jung-Won Ju
- Division of Vectors and Parasitic Diseases, Korea Disease Control and Prevention Agency, Osong 28159, Korea
| | - Myoung-Ro Lee
- Division of Vectors and Parasitic Diseases, Korea Disease Control and Prevention Agency, Osong 28159, Korea
| | - Eun-Joo Lim
- Infectious Disease Intelligence Division, Gangwon Institute of Health and Environment, Chuncheon 24203, Korea
| | - Sung Yong Son
- Infectious Disease Intelligence Division, Gangwon Institute of Health and Environment, Chuncheon 24203, Korea
| | - Eunmi Ko
- Infectious Disease Intelligence Division, Gangwon Institute of Health and Environment, Chuncheon 24203, Korea
| | - Jaeseok Choi
- Research Center for Fish Environmental Institute/ Wildlife and Fish Research & Conservation Center, Kangwon National University, Chuncheon 24341, Korea
| |
Collapse
|
8
|
Sohn WM, Na BK, Cho SH, Ju JW, Kim CH, Hwang MA, No KW, Park JH. Prevalence and Infection Intensity of Zoonotic Trematode Metacercariae in Fish from Soyang-cheon (Stream), in Wanju-gun, Jeollabuk-do, Korea. THE KOREAN JOURNAL OF PARASITOLOGY 2021; 59:265-271. [PMID: 34218598 PMCID: PMC8255493 DOI: 10.3347/kjp.2021.59.3.265] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Accepted: 05/30/2021] [Indexed: 11/23/2022]
Abstract
We surveyed on the infection status of zoonotic trematode metacercariae (ZTM) in freshwater fishes from Soyang-cheon (a branch stream of Mangyeong-gang) in Wanju-gun, Jeollabuk-do, the Republic of Korea. A total of 927 fishes were individually examined with the artificial digestion method during 2013–2015 (462 fish in 15 spp.) and 2018–2019 (465 fish in 25 spp.). Clonorchis sinensis metacercariae were detected in 207 (31.4%) out of 659 fishes in 14 positive fish species (PFS), and their mean intensity was 114 per fish infected (PFI). Metagonimus spp. metacercariae were found in 302 (37.4%) out of 808 fishes in 21 PFS, and their mean intensity was 12 PFI. Centrocestus armatus metacercariae were detected in 222 (59.0%) out of 376 fishes in 12 PFS, and their mean intensity was 383 PFI. Echinostoma spp. metacercariae were found in 139 (22.1%) out of 628 fishes in 10 PFS, and their mean intensity was 7 PFI. Clinostomum complanatum metacercariae were detected in 14 (6.5%) out of 214 fishes in 4 PFS, and their mean intensity was 2.4 PFI. Metorchis orientalis metacercariae were detected in 36 (13.5%) out of 267 fishes in 5 PFS, and their mean intensity was 4.3 PFI. Conclusively, the prevalence and infection intensity of ZTM is generally not so high in fishes from Soyang-cheon. However, those of C. sinensis metacercariae are more or less higher in 2 fish species, Pungtungia herzi and Sarcocheilichthys variegatus wakiyae.
Collapse
Affiliation(s)
- Woon-Mok Sohn
- Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju 52727, Korea
| | - Byoung-Kuk Na
- Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju 52727, Korea
| | - Shin-Hyeong Cho
- Division of Vectors and Parasitic Diseases, Korea Disease Control and Prevention Agency, Osong 28159, Korea
| | - Jung-Won Ju
- Division of Vectors and Parasitic Diseases, Korea Disease Control and Prevention Agency, Osong 28159, Korea
| | - Cheon-Hyeon Kim
- Division of Microorganism, Jeollabuk-do Institute of Health and Environment, Imsil 55928, Korea
| | - Min-Ah Hwang
- Division of Microorganism, Jeollabuk-do Institute of Health and Environment, Imsil 55928, Korea
| | - Kyeong-Woo No
- Division of Microorganism, Jeollabuk-do Institute of Health and Environment, Imsil 55928, Korea
| | - Jong-Ho Park
- Division of Microorganism, Jeollabuk-do Institute of Health and Environment, Imsil 55928, Korea
| |
Collapse
|
9
|
Chang JI, Lee K, Kim D, Yang JI, Park JK, Choi K, Kang SH, Lee KH, Lee KT, Lee JK, Park SM, Park JK. Clinical Characteristics of Clonorchis sinensis-Associated Cholangiocarcinoma: A Large-Scale, Single-Center Study. Front Med (Lausanne) 2021; 8:675207. [PMID: 34124104 PMCID: PMC8193222 DOI: 10.3389/fmed.2021.675207] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 04/29/2021] [Indexed: 11/13/2022] Open
Abstract
Background:Clonorchis sinensis (CS) infection is considered a group 1 carcinogen of cholangiocarcinoma (CCA). There were very few studies regarding clinical characteristics of CS-associated CCA (CACC). This study aimed to investigate clinical characteristics of patients with CCA with or without CS infection. Methods: A total of 367 patients diagnosed with CCA who underwent diagnostic tests for CS infection were enrolled. CS infection was defined as follows: at least one positive serum ELISA test, skin test, stool microscopy, or bile microscopy. Results: There were 95 (26%) patients with CS infections. The median follow-up duration was 14.9 months (range, 6.07–36.17). The following significant differences were noted among patients with CACC compared to non-CACC; diagnosis at younger age (median 62 years vs. 65 years, p = 0.018), higher male to female ratio (83.2 vs. 61.8%, p < 0.001), and residence in CS-endemic area (46.3 vs. 25.4%, p = 0.014). Univariate analysis of prognostic factors indicated that tumor location, curative resection, tumor stage, and laboratory tests including CA 19-9, CEA, and bilirubin were significantly associated with overall survival, but CS infection was not. In multivariate analysis, tumor location, CEA, curative resection and tumor stage were identified as independent prognostic factors. Among patients under age 64, CACC group had lower survival rate than non-CACC group (p = 0.022). Conclusions: CACC had the following significant characteristics compared to non-CACC; diagnosis at younger age, higher male to female ratio, higher prevalence in CS endemic areas and poorer overall survival in patients under age 64.
Collapse
Affiliation(s)
- Jong-In Chang
- Division of Gastroenterology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Keol Lee
- Division of Gastroenterology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Dongwuk Kim
- Division of Gastroenterology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Ju-Ii Yang
- Division of Gastroenterology, Department of Internal Medicine, Good Gangan Hospital, Busan, South Korea
| | - Jae Keun Park
- Department of Internal Medicine, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, South Korea
| | - Kyu Choi
- Division of Gastroenterology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Soo Hoon Kang
- Division of Gastroenterology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Kwang Hyuck Lee
- Division of Gastroenterology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Kyu Taek Lee
- Division of Gastroenterology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Jong Kyun Lee
- Division of Gastroenterology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Seon Mee Park
- Department of Internal Medicine, Chungbuk National University College of Medicine, Cheongju-si, South Korea
| | - Joo Kyung Park
- Division of Gastroenterology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| |
Collapse
|
10
|
Sohn WM, Na BK, Cho SH, Lee HI, Lee MR, Ju JW, Kim GO. High Endemicity with Clonorchis sinensis Metacercariae in Fish from Yongjeon-cheon (Stream) in Cheongsong-gun, Gyeongsangbuk-do, Korea. THE KOREAN JOURNAL OF PARASITOLOGY 2021; 59:97-101. [PMID: 33684993 PMCID: PMC7939965 DOI: 10.3347/kjp.2021.59.1.97] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 01/21/2021] [Indexed: 11/23/2022]
Abstract
The infection status with Clonorchis sinensis metacercariae (CsMc) was examined in freshwater fishes from Yongjeon-cheon (a branch of Nakdong-gang) located in Cheongsong-gun, Gyeongsangbuk-do, the Republic of Korea (Korea). A total of 750 fishes in 19 species were examined by the artificial digestion method for 2 years (2019 and 2020). CsMc were detected in 378 (51.4%) out of 735 fishes in 14 species (73.7%), and the infection intensity was 666 per fish infected. In 2019, CsMc were found in 172 (68.0%) out of 253 fishes in 10 species, and the infection intensity was 565 per fish infected. In 2020, CsMc were detected in 206 (62.2%) out of 331 fishes in 10 species, and the infection intensity was 751 per fish infected. The other zoonotic trematode, ie. Metagonimus spp., Centrocestus armatus, Echinostoma spp. and Clinostomum complanatum, metacercariae were also detected in fishes from the survey streams, but their endemicities were relatively low. Conclusively, it was first confirmed that CsMc are highly endemic in fishes from Yongjeon-cheon in Cheongsong-gun, Gyeongsangbuk-do, Korea.
Collapse
Affiliation(s)
- Woon-Mok Sohn
- Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University College of Medicine, Jinju 52727, Korea
| | - Byoung-Kuk Na
- Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University College of Medicine, Jinju 52727, Korea
| | - Shin-Hyeong Cho
- Division of Vectors and Parasitic Diseases, Korea Disease Control and Prevention Agency, Osong 28159, Korea
| | - Hee Il Lee
- Division of Vectors and Parasitic Diseases, Korea Disease Control and Prevention Agency, Osong 28159, Korea
| | - Myoung-Ro Lee
- Division of Vectors and Parasitic Diseases, Korea Disease Control and Prevention Agency, Osong 28159, Korea
| | - Jung-Won Ju
- Division of Vectors and Parasitic Diseases, Korea Disease Control and Prevention Agency, Osong 28159, Korea
| | - Gou Ok Kim
- Infectious Disease Research Division, Gyeongsangbuk-do Government Public Institue of Health and Environment, Yeongcheon 38874, Korea
| |
Collapse
|
11
|
Sohn WM, Na BK, Cho SH, Kim CH, Hwang MA, No KW, Kim JD. Survey of Zoonotic Trematode Metacercariae in Fish from Water Systems of Geum-gang (River) in Republic of Korea. THE KOREAN JOURNAL OF PARASITOLOGY 2021; 59:23-33. [PMID: 33684984 PMCID: PMC7939959 DOI: 10.3347/kjp.2021.59.1.23] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 01/11/2021] [Indexed: 12/04/2022]
Abstract
The infection status of zoonotic trematode metacercariae (ZTM) was surveyed in freshwater fishes from the water systems of Geum-gang (River) in the Republic of Korea (Korea). A total of 1,161 freshwater fishes from 6 local sites of Geum-gang were examined with the artificial digestion method for 4 years (2012–2015). Clonorchis sinensis metacercariae were detected in 122 (37.2%) out of 328 fishes in the positive fish species from 4 surveyed areas, and their mean intensity was 43 per fish infected. Metagonimus spp. metacercariae were found in 432 (51.7%) out of 835 fishes in the positive fish species from all 6 surveyed areas, and their mean intensity was 30 per fish infected. Centrocestus armatus metacercariae were detected in 285 (75.0%) out of 380 fishes in the positive fish species from 6 surveyed areas, and their mean intensity was 2,100 per fish infected. Echinostoma spp. metacercariae were found in 56 (19.7%) out of 284 fishes in the positive fish species from 5 surveyed areas, and their mean intensity was 10 per fish infected. Clinostomum complanatum metacercariae were detected in 98 (57.3%) out of 171 fishes in the positive fish species from only 2 surveyed areas, and their mean intensity was 11 per fish infected. Conclusively, the endemicity of ZTM is not so high in fishes from water systems of Geum-gang in Korea although it is more or less different by fish species, surveyed areas and ZTM species.
Collapse
Affiliation(s)
- Woon-Mok Sohn
- Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju 52727, Korea
| | - Byoung-Kuk Na
- Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju 52727, Korea
| | - Shin-Hyeong Cho
- Division of Vectors and Parasitic Diseases, Centers for Disease Control and Prevention, Osong 28159, Korea
| | - Cheon-Hyeon Kim
- Division of Microorganism, Jeollabuk-do Institute of Health and Environment, Imsil 55928, Korea
| | - Min-Ah Hwang
- Division of Microorganism, Jeollabuk-do Institute of Health and Environment, Imsil 55928, Korea
| | - Kyeong-Woo No
- Division of Microorganism, Jeollabuk-do Institute of Health and Environment, Imsil 55928, Korea
| | - Jai-Dong Kim
- Division of Microbiology, Chungcheongnam-do Institute of Health and Environment, Hongseong 32254, Korea
| |
Collapse
|
12
|
Sohn WM, Na BK, Cho SH, Lee SW. Infection Status with Digenetic Trematode Metacercariae in Fishes from Coastal Lakes in Gangwon-do, Republic of Korea. THE KOREAN JOURNAL OF PARASITOLOGY 2019; 57:681-690. [PMID: 31914522 PMCID: PMC6960247 DOI: 10.3347/kjp.2019.57.6.681] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 11/28/2019] [Indexed: 11/29/2022]
Abstract
The infection status of digenetic trematode metacercariae (DTM) was investigated in fishes from coastal lakes in Gangwon-do, the Republic of Korea (Korea). All fishes collected in 5 lakes were examined with the artificial digestion method. More than 10 species, i.e., Metagonimus spp., Pygidiopsis summa, Centrocestus armatus, Metorchis orientalis, M. taiwanensis, Clinostomum complanatum, Echinostoma spp., Stictodora spp., Diplostomum sp. and Diplostomid No. 1. by Morita (1960), of DTM were detected in fishes from 5 coastal lakes in Gangwon-do. Metagonimus spp. metacercariae were found in 52 (41.3%) out of 126 sea rundace, Tribolodon hakonensis, from 5 lakes, and their density was 14.6 per fish infected. P. summa metacercariae were detected in 48 (84.2%) out of 57 mullets from 5 lakes, and their density was 316 per fish infected. C. armatus metacercariae were detected in 7 (14.6%) T. hakonensis and 3 (15.0%) Tridentiger brevispinis from Hyang-ho, and 5 (19.2%) Acanthogobius flavimanus from Gyeongpo-ho. Stictodora spp. metacercariae were found in 4 fish species, i.e., Tridentiger obscurus, Tridentiger trigonocephalus, Chelon haematocheilus, and Acanthogobius lactipes, from Gyeongpo-ho. Total 15 C. complanatum metacercariae were detected in 2 (9.1%) crucian carp, Carassius auratus, from Songji-ho. M. taiwanensis metacercariae were found in T. hakonensis from Hyang-ho and Gyeongpo-ho and in Pseudorasbora parva from Gyeongpo-ho. Total 11 M. orientalis metacercariae were detected in 3 (6.3%) T. hakonensis from Hyang-ho. From the above results, it was confirmed that various species of DTM are infected in fishes from coastal lakes in Gangwon-do, Korea.
Collapse
Affiliation(s)
- Woon-Mok Sohn
- Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University College of Medicine, Jinju 52727, Korea
| | - Byoung-Kuk Na
- Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University College of Medicine, Jinju 52727, Korea
| | - Shin-Hyeong Cho
- Division of Vectors and Parasitic Diseases, Centers for Disease Control and Prevention, Osong 28159, Korea
| | - Soon-Won Lee
- Infection Disease Intelligence Division, Gangwon Institute of Health and Environment, Chuncheon 24203, Korea
| |
Collapse
|
13
|
Wang N, Tang B, Hao Y, Bai X, Wang X, Li Y, Yang Y, Li S, Hao S, Wang X, Liu M, Liu X. Acute shock caused by Clonorchis sinensis infection: a case report. BMC Infect Dis 2019; 19:1014. [PMID: 31783809 PMCID: PMC6884769 DOI: 10.1186/s12879-019-4644-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 11/20/2019] [Indexed: 01/09/2023] Open
Abstract
Background Clonorchiasis, caused by Clonorchis sinensis (C. sinensis) infection, is a serious food-borne zoonotic disease that is often asymptomatic or shows only mild symptoms, which leads to delayed treatment and chronic clonorchiasis and results in various complications, such as cholelithiasis, cholangitis, cholecystitis and cholangiocarcinoma. However, acute shock caused by C. sinensis infection has not been reported. Here, for the first time, we describe a fatal case of acute shock caused by C. sinensis infection. Case presentation A patient with a history of eating raw or undercooked freshwater fish was hospitalized with acute shock caused by severe abdominal pain. Physical examination suggested acute abdomen with severe abdominal pain and rigidity. Computed tomography (CT) detection indicated acute cholecystitis and cholelithiasis. After cholecystectomy, several liver flukes were found in the drainage tube. Furthermore, morphological analysis and polymerase chain reaction (PCR) identified the pathogen as C. sinensis. The liver gradually restored normal function after anthelmintic therapy with praziquantel. Conclusions In this fatal case, C. sinensis infection was the cause of acute shock, which is rarely found in the clinic environment. This report aims to increase awareness of the hazards and complications related to clonorchiasis. The PCR diagnosis method used in this report might be helpful in reducing the misdiagnosis of clonorchiasis and unnecessary cholecystectomy.
Collapse
Affiliation(s)
- Nan Wang
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis/College of Veterinary Medicine, Jilin University, Changchun, 130000, China
| | - Bin Tang
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis/College of Veterinary Medicine, Jilin University, Changchun, 130000, China
| | - Yuhua Hao
- Affiliated Zhongshan Hospital of Dalian University, Dalian, 116000, China
| | - Xue Bai
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis/College of Veterinary Medicine, Jilin University, Changchun, 130000, China
| | - Xuelin Wang
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis/College of Veterinary Medicine, Jilin University, Changchun, 130000, China
| | - Yuxiang Li
- Infection Department, the First Hospital of Jilin University, Changchun, 130021, China
| | - Yong Yang
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis/College of Veterinary Medicine, Jilin University, Changchun, 130000, China
| | - Shicun Li
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis/College of Veterinary Medicine, Jilin University, Changchun, 130000, China
| | - Shuo Hao
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis/College of Veterinary Medicine, Jilin University, Changchun, 130000, China
| | - Xinyu Wang
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis/College of Veterinary Medicine, Jilin University, Changchun, 130000, China
| | - Mingyuan Liu
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis/College of Veterinary Medicine, Jilin University, Changchun, 130000, China. .,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China.
| | - Xiaolei Liu
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis/College of Veterinary Medicine, Jilin University, Changchun, 130000, China.
| |
Collapse
|
14
|
Choe S, Jeong DH, Yang JJ, Kim J, Na KJ, Lee D, Park H, Jeon HK, Eom KS. A Clonorchiasis Case of a Leopard Cat, Prionailurus bengalensis euptilurus, Diagnosed by Ultrasonography and Egg Detection in Republic of Korea. THE KOREAN JOURNAL OF PARASITOLOGY 2019; 57:299-302. [PMID: 31284354 PMCID: PMC6616156 DOI: 10.3347/kjp.2019.57.3.299] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 04/10/2019] [Indexed: 11/23/2022]
Abstract
A clonorchiasis case in a captive leopard cat, Prionailurus bengalensis euptilurus, was confirmed by ultrasonographic findings and egg morphologies found in the bile juice sample in the Korea. The leopard cat was introduced from the wild habitat of Gyeongsangnam-do, to Cheongju Zoo in Cheongju-si, Chungcheongbuk-do, Korea in August 2014. Physical examinations were basically performed for quarantine and check-up health. The cat was comparatively good in health except anorexia. The cyst-like bile duct dilation and the increased echogenicity of gall bladder wall and hepatic parenchyma were observed by ultrasonography. Ultrasound-guided needle biopsy was conducted for collecting bile juice and the specimens were observed under light microscope. The numerous small trematode eggs were detected in the bile juice sample of the light microscopy. The eggs were 25–33 (28±3) μm by 18–22 (20±1) μm in size and showed typical characteristics of Clonorchis sinensis egg, i.e., a dominantly developed operculum, shoulder rim and dust-like wrinkles in surface. To treat the liver fluke infection, 20 mg/kg of praziquantel was orally administered only once to the case. Follow-up studies including fecal examinations were conducted during 2 years after treatment. But no more eggs were detected from the case. In the present study, we described the first clonorchiasis case of leopard cat, which was confirmed by ultrasonographic findings and egg morphologies from the bile juice sample in Korea.
Collapse
Affiliation(s)
- Seongjun Choe
- Department of Parasitology, Parasite Research Center and Parasite Resource Bank, School of Medicine, Chungbuk National University, Cheongju 28644, Korea
| | - Dong-Hyuk Jeong
- Species Restoration Technology Institute, Korea National Park Service, Gurye 57616, Korea
| | - Jeong-Jin Yang
- Species Restoration Technology Institute, Korea National Park Service, Gurye 57616, Korea
| | | | - Ki-Jeong Na
- The Wildlife Center of Chungbuk, Cheongju 28116, Korea.,College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Korea
| | - Dongmin Lee
- Department of Parasitology, Parasite Research Center and Parasite Resource Bank, School of Medicine, Chungbuk National University, Cheongju 28644, Korea
| | - Hansol Park
- Department of Parasitology, Parasite Research Center and Parasite Resource Bank, School of Medicine, Chungbuk National University, Cheongju 28644, Korea
| | - Hyeong-Kyu Jeon
- Department of Parasitology, Parasite Research Center and Parasite Resource Bank, School of Medicine, Chungbuk National University, Cheongju 28644, Korea
| | - Keeseon S Eom
- Department of Parasitology, Parasite Research Center and Parasite Resource Bank, School of Medicine, Chungbuk National University, Cheongju 28644, Korea
| |
Collapse
|
15
|
Sohn WM, Na BK, Cho SH, Ju JW. Infection Status with Clonorchis sinensis Metacercariae in Fish from Yangcheon (Stream) in Sancheong-gun, Gyeongsangnam-do, Korea. THE KOREAN JOURNAL OF PARASITOLOGY 2019; 57:145-152. [PMID: 31104406 PMCID: PMC6526209 DOI: 10.3347/kjp.2019.57.2.145] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 03/25/2019] [Indexed: 11/23/2022]
Abstract
The infection status with Clonorchis sinensis metacercariae (CsMc) was examined in freshwater fishes from Yangcheon (a branch of Gyeongho-gang), which is located in Sancheong-gun, Gyeongsangnam-do, the Republic of Korea. Total 2,201 fishes in 26 species were examined by the artificial digestion method through 7 years. CsMc were detected in 1,171 (53.2%) fishes in 21 spp. (80.8%) and their density was 85 per fish infected. Total 532 (99.6%) out of 534 Pungtungia herzi (index fish) examined were infected with 147 CsMc per fish infected. Metacercarial densities in this fish were highest in 2015 (179 CsMc), followed by 2012 (168), 2013 (152), 2016 (145), 2014 (114), and 2017 (89) respectively. In the gobioninid fish group, i.e., P. herzi, Sarcocheilichthys spp., Squalidus spp., Pseudogobio esocinus, Hemibarbus longirostris, and Hemibarbus labeo, 841 (92.7%) fishes were infected with 117 CsMc per fish infected. Total 250 (54.7%) acheilognathinid fish (bitterlings), Acheilognathus spp. and Acanthorhodeus spp. were infected with 5.8 CsMc. In the rasborinid fish (chubs) group, i.e., Zacco platypus, Zacco temminckii, and Zacco koreanus, 77 (13.7%) out of 563 fish examined were infected with 2.4 CsMc in average. The susceptibility indices of CsMc were 49.09 in the overall positive fish group, 104.15 in the gobioninid group, 3.17 in the acheilognathinid group and 0.35 in the rasborinid fish group respectively. Only 1 CsMc was detected in 3 fish species, Coreoperca herzi, Channa argus, and Lepomis macrochirus, respectively. Conclusively, it was confirmed that CsMc are moderately prevalent in fishes from Yangcheon in Sancheon-gun, Gyeongsangnam-do, Korea.
Collapse
Affiliation(s)
- Woon-Mok Sohn
- Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University College of Medicine, Jinju 52727, Korea
| | - Byoung-Kuk Na
- Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University College of Medicine, Jinju 52727, Korea
| | - Shin-Hyeong Cho
- Division of Vectors and Parasitic Diseases, Centers for Disease Control and Prevention, Osong 28159, Korea
| | - Jung-Won Ju
- Division of Vectors and Parasitic Diseases, Centers for Disease Control and Prevention, Osong 28159, Korea
| |
Collapse
|
16
|
A co-infection case report of Taenia saginata in a patient with subclinical clonorchiasis confirmed by the combination of diagnostic tools. BMC Infect Dis 2019; 19:115. [PMID: 30727977 PMCID: PMC6364428 DOI: 10.1186/s12879-019-3758-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Accepted: 01/29/2019] [Indexed: 11/16/2022] Open
Abstract
Background Clonorchiasis is the common parasitic infection in the general population of the Republic of Korea, however, taeniasis is scarcely reported recently. Here, we describe a case of co-infection with the cestode T. saginata in a patient with subclinical clonorchiasis diagnosed by a combination of diagnostic tools in Korea. Case presentation A 56-year-old man visited the hospital having passed proglottids in his stool for the past two months and brought a stool sample with segments to our hospital. He had no abdominal symptoms, such as nausea, vomiting, abdominal pain, diarrhea, or constipation. He used to consume raw beef and fish frequently. We could not find evidence of gravid proglottids which contain fully developed uteri filled with ova or branched uterine structures, within the submitted sample. To identify the tapeworm species, we carried out molecular analyses on the proglottids. The cox1 and ef1a sequences had a 100% match with those of T. saginata and differed from the sequences of the other Taenia species. Upon examination of stool samples fixed by formalin-ether concentration method, no Taenia species ova were observed in 10 slides. Instead, C. sinensis ova were observed, despite the level of IgG specific to C. sinensis being within the normal range. The patient was treated with praziquantel (25 mg/kg, three times a day) for 3 days, and subsequently C. sinensis ova were not found in his stool. Conclusion Our case indicates that a combination of morphological, serological, and molecular diagnostic tools should be used for the accurate diagnosis of subclinical parasitic infections. Electronic supplementary material The online version of this article (10.1186/s12879-019-3758-0) contains supplementary material, which is available to authorized users.
Collapse
|
17
|
Bahk YY, Park YK, Na BK, Sohn WM, Hong SJ, Chai JY, Kim TS. Survey on Intestinal Helminthic Infection Status of Students in Two Counties, Hadong-gun and Goseong-gun, Korea. THE KOREAN JOURNAL OF PARASITOLOGY 2018; 56:335-339. [PMID: 30196665 PMCID: PMC6137301 DOI: 10.3347/kjp.2018.56.4.335] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 08/15/2018] [Indexed: 11/23/2022]
Abstract
This study was conducted to investigate the prevalence of intestinal parasites among students from Goseong-gun, Gangwon-do and Hadong-gun, Gyeongsangnam-do as typical low and high endemic counties. From May to July 2017, a total of 2,033 fecal samples were collected at 27 elementary, 10 junior high, and 8 high schools from 2 counties and examined by the Kato-Katz technique for egg-positive surveys (Collection rate: 37.02% [2,033/5,492]). Of the participants examined, 13 (0.64%) were found to harbor eggs of 3 parasitic species, Trichuris trichiura, Clonorchis sinensis and Metagonimus yokogawai. Based on the regional distribution, the egg-positive rate in Goseong-gun was 0% (0/550) and that in Hadong-gun was 0.88% (13/1,483). The positive rates for C. sinensis, M. yokogawai, and T. trichiura in Hadong-gun were 0.20% (3/1,483), 0.61% (9/1,483), and 0.07% (1/1,483), respectively. The present survey showed that the prevalence of parasitic infection among students is currently very low even in remote, previously endemic areas, and the present status of parasitic diseases can be summarized as some transmission of fish/food-borne trematodes. Thus, it is necessary to carefully, continuously monitor the trematode infection status, particularly of C. sinensis and M. yokogawai.
Collapse
Affiliation(s)
- Young Yil Bahk
- Department of Biotechnology, College of Biomedical and Health Science, Konkuk University, Chungju 27478, Korea
| | - Yun-Kyu Park
- Department of Parasitology and Tropical Medicine, Inha University School of Medicine, Incheon 22212, Korea
| | - Byoung-Kuk Na
- Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju 52727, Korea.,BK21 Plus Team for Anti-aging Biotechnology and Industry, Department of Convergence Medical Science, Gyeongsang National University, Jinju 52727, Korea
| | - Woon-Mok Sohn
- Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju 52727, Korea
| | - Sung-Jong Hong
- Department of Medical Environmental Biology and Research Center for Biomolecules and Biosystems, Chung-Ang University College of Medicine, Seoul 06974, Korea
| | - Jong-Yil Chai
- Korea Association of Health Promotion, Seoul 07653, Korea
| | - Tong-Soo Kim
- Department of Parasitology and Tropical Medicine, Inha University School of Medicine, Incheon 22212, Korea
| |
Collapse
|
18
|
Yoon KB, Lim HC, Jeon DY, Park S, Cho SH, Ju JW, Shin SS, Na BK, Sohn WM. Infection Status with Clonorchis sinensis Metacercariae in Fish from Tamjin-gang (River) in Jeollanam-do, Republic of Korea. THE KOREAN JOURNAL OF PARASITOLOGY 2018; 56:183-188. [PMID: 29742873 PMCID: PMC5976021 DOI: 10.3347/kjp.2018.56.2.183] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 03/20/2018] [Accepted: 04/10/2018] [Indexed: 11/23/2022]
Abstract
The present study was performed to investigate the infection status with Clonorchis sinensis metacercariae (CsMc) in fishes from 2 sites, the middle and lower reaches, of Tamjin-gang (River) in Jeollanam-do, the Republic of Korea. Total 1,132 fishes in 22 species were collected from the middle reaches in Jangheung-gun for 4 years (2014–2017) and 517 fishes in 17 species were also collected from the lower reaches in Gangjin-gun in 2014 and 2017. They were all individually examined with the artificial digestion method in our laboratory. CsMc were detected in 322 (28.5%) out of 1,132 fishes from Jangheung-gun, and in 161 (31.1%) out of 517 fishes from Gangjin-gun, and their densities were 51 and 57 per fish infected each. In the fish species with CsMc, positive rates were 61.5% in Jangheung-gun and 62.7% in Gangjin-gun. A total of 222 Pungtungia herzi were examined and they were all infected with CsMc. The average intensity was 103 CsMc in the index fish, P. herzi (95 in Jangheung-gun and 121 in Gangjin-gun). In P. herzi bimonthly examined in 2017, the intensity was commonly most higher in March in 2 surveyed sites, however the significant seasonal endemicity was not showed. Conclusively, it was confirmed that CsMc is more or less prevalent in fishes from Tamjin-gang and their endemicity is higher in fish from the lower reaches in Gangjin-gun than the middle reaches in Jangheung-gun in Jeollanam-do, Korea.
Collapse
Affiliation(s)
- Ki-Bok Yoon
- Division of Microbiology, Jeollanam-do Institute of Health and Environment, Muan 58568, Korea
| | - Hyun-Cheol Lim
- Division of Microbiology, Jeollanam-do Institute of Health and Environment, Muan 58568, Korea
| | - Doo Young Jeon
- Division of Microbiology, Jeollanam-do Institute of Health and Environment, Muan 58568, Korea
| | - Sook Park
- Division of Microbiology, Jeollanam-do Institute of Health and Environment, Muan 58568, Korea
| | - Shin-Hyeong Cho
- Division of Vectors and Parasitic Diseases, Centers for Disease Control and Prevention, Osong 28159, Korea
| | - Jung-Won Ju
- Division of Vectors and Parasitic Diseases, Centers for Disease Control and Prevention, Osong 28159, Korea
| | - Sung-Shik Shin
- Department of Parasitology, College of Veterinary Medicine, Chonnam National University, Gwangju 61186, Korea
| | - Byoung-Kuk Na
- Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University College of Medicine, Jinju 52727, Korea
| | - Woon-Mok Sohn
- Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University College of Medicine, Jinju 52727, Korea
| |
Collapse
|
19
|
Sohn WM, Na BK, Cho SH, Ju JW, Son DC. Prevalence and Intensity of Clonorchis sinensis Metacercariae in Freshwater Fish from Wicheon Stream in Gunwi-gun, Gyeongsangbuk-do, Korea. THE KOREAN JOURNAL OF PARASITOLOGY 2018. [PMID: 29529849 PMCID: PMC5858666 DOI: 10.3347/kjp.2018.56.1.41] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The infection status of Clonorchis sinensis metacercariae (CsMc) was examined in freshwater fish from a highly prevalent site, Wicheon (a branch of Nakdong-gang), which is located in Gunwi-gun, Gyeongsangbuk-do, the Republic of Korea. Total 1,162 fish in 32 species were examined by the artificial digestion method through 6 years. CsMc were detected in 720 (67.5%) out of 1,067 fish (26 spp.) and their density was 610 per fish infected. In the susceptible gobioninid fish group, i.e., Pungtungia herzi, Squalidus gracilis majimae, Squalidus japonicus coreanus, Sarcocheilichthys variegatus wakiyae and Pseudorasbora parva, all of 323 fish were infected with an average of 1,310 CsMc. Total 23 (95.8%) gobioninid fish, i.e., Pseudogobio esocinus, Abbottina springeri, Hemibarbus longirostris, Microphysogobio koreensis, and Microphysogobio jeoni, were infected with 127 CsMc in average. In the acheilognathinid fish (bitterlings) group, the prevalence was 77.0%, and the density was 50 CsMc per fish infected. In the rasborinid fish (chubs) group, i.e., Zacco platypus, Zacco temminckii, Zacco koreanus, and Opsariichthys uncirostris amurensis, 147 (36.5%) out of 403 fish examined were infected with 15 CsMc in average. The susceptibility indices of CsMc were 412 in the overall positive fish group, 1,310 in the gobioninid group-1, 122 in the gobioninid group-2, 38.5 in the acheilognathinid group, and 5.5 in the rasborinid fish group. Conclusively, it was confirmed that CsMc are highly prevalent in fish from Wicheon, and their infection tendency varied according to the subfamily groups in Cyprinidae fish hosts.
Collapse
Affiliation(s)
- Woon-Mok Sohn
- Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University College of Medicine, Jinju 52727, Korea
| | - Byoung-Kuk Na
- Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University College of Medicine, Jinju 52727, Korea
| | - Shin-Hyeong Cho
- Division of Vectors and Parasitic Diseases, Centers for Disease Control and Prevention, Osong 28159, Korea
| | - Jung-Won Ju
- Division of Vectors and Parasitic Diseases, Centers for Disease Control and Prevention, Osong 28159, Korea
| | - Dong-Chul Son
- Infectious Disease Research Section, Gyeongsangbuk-do Institute of Health and Environment, Yeongcheon 38874, Korea
| |
Collapse
|
20
|
Rahman SMM, Song HB, Jin Y, Oh JK, Lim MK, Hong ST, Choi MH. Application of a loop-mediated isothermal amplification (LAMP) assay targeting cox1 gene for the detection of Clonorchis sinensis in human fecal samples. PLoS Negl Trop Dis 2017; 11:e0005995. [PMID: 28991924 PMCID: PMC5648269 DOI: 10.1371/journal.pntd.0005995] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Revised: 10/19/2017] [Accepted: 09/26/2017] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Clonorchiasis is prevalent in the Far East, and a major health problem in endemic areas. Infected persons may experience, if not treated, serious complications such as bile stone formation, pyogenic cholangitis, and even cholangiocarcinoma. Early diagnosis and treatment are important to prevent serious complications and, therefore, the simple and reliable diagnostic method is necessary to control clonorchiasis in endemic areas, where resources for the diagnosis are limited. METHODOLOGY/PRINCIPLE FINDINGS The loop-mediated isothermal amplification (LAMP) assay has been applied for the detection of Clonorchis sinensis DNA. Six primers targeting eight locations on the cytochrome c oxidase subunit 1 gene of C. sinensis were designed for species-specific amplification using the LAMP assay. The LAMP assay was sensitive enough to detect as little as 100 fg of C. sinensis genomic DNA and the detection limit in 100 mg of stool was as low as one egg. The assay was highly specific because no cross-reactivity was observed with the DNA of other helminths, protozoa or Escherichia coli. Then, LAMP assay was applied to human fecal samples collected from an endemic area of clonorchiasis in Korea. Using samples showing consistent results by both Kato-Katz method and real-time PCR as reference standards, the LAMP assay showed 97.1% (95% CI, 90.1-99.2) of sensitivity and 100% (95% CI, 92.9-100) of specificity. In stool samples with more than 100 eggs per gram of feces, the sensitivity achieved 100%. CONCLUSIONS To detect C. sinensis in human fecal samples, the LAMP assay was applied and achieved high sensitivity and specificity. The LAMP assay can be utilized in field laboratories as a powerful tool for diagnosis and epidemiological survey of clonorchiasis.
Collapse
Affiliation(s)
- S. M. Mazidur Rahman
- Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine, and Institute of Endemic Diseases, Seoul National University Medical Research Center, Seoul, Korea
| | - Hyun Beom Song
- Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine, and Institute of Endemic Diseases, Seoul National University Medical Research Center, Seoul, Korea
| | - Yan Jin
- Department of Microbiology, Dongguk University School of Medicine, Gyeongju, Korea
| | - Jin-Kyoung Oh
- National Cancer Center, Graduate School of Cancer Science and Policy, Goyang, Gyonggi, Korea
| | - Min Kyung Lim
- National Cancer Center, Graduate School of Cancer Science and Policy, Goyang, Gyonggi, Korea
| | - Sung-Tae Hong
- Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine, and Institute of Endemic Diseases, Seoul National University Medical Research Center, Seoul, Korea
| | - Min-Ho Choi
- Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine, and Institute of Endemic Diseases, Seoul National University Medical Research Center, Seoul, Korea
- * E-mail:
| |
Collapse
|
21
|
Lee MR, Shin HE, Chung BS, Lee SE, Ju JW, Xu L, Nan CL, Park MY, Cho SH. Intestinal Parasite Infections among Inhabitants in Yanbian Prefecture, Jilin Province, China. THE KOREAN JOURNAL OF PARASITOLOGY 2017; 55:579-582. [PMID: 29103276 PMCID: PMC5678463 DOI: 10.3347/kjp.2017.55.5.579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 07/04/2017] [Accepted: 08/18/2017] [Indexed: 11/23/2022]
Abstract
To investigate the prevalence of intestinal parasite infections in Yanbian Prefecture, Jilin Province, China, epidemiological surveys were conducted on a collaboration basis between the Korean Centers for Disease Control and Prevention and the Yanbian Center for Disease Control and Prevention. A total of 8,396 (males 3,737 and females 4,659) stool samples were collected from 8 localities and examined with the formalin-ether sedimentation technique, and additionally examined with the cellotape anal swab to detect Enterobius vermicularis eggs. The overall rate of intestinal parasites was 1.57%. The prevalence of Ascaris lumbricoides was the highest (0.80%), followed by Entamoeba spp. (0.23%), heterophyid flukes (0.15%), Clonorchis sinensis (0.08%), Enterobius vermicularis (0.07%), hookworms (0.06%), Trichostrongylus spp. (0.06%), Giardia lamblia (0.04%), Paragonimus spp. (0.02%), Diphyllobothrium spp. (0.02%), Trichuris trichiura (0.02%). The prevalence by sex was similar, 1.58% (n=59) in males and 1.57% (n=73) in females. By the present study, it is partly revealed that the prevalences of intestinal parasite infections are relatively low among the inhabitants of Yanbian Prefecture, Jilin Province, China.
Collapse
Affiliation(s)
- Myoung-Ro Lee
- Division of Vectors and Parasitic Diseases, Centers for Disease Control and Prevention, Osong 28159, Korea
| | - Hee-Eun Shin
- Division of Vectors and Parasitic Diseases, Centers for Disease Control and Prevention, Osong 28159, Korea
| | - Byung-Suk Chung
- Division of Vectors and Parasitic Diseases, Centers for Disease Control and Prevention, Osong 28159, Korea
| | - Sang-Eun Lee
- Division of Vectors and Parasitic Diseases, Centers for Disease Control and Prevention, Osong 28159, Korea
| | - Jung-Won Ju
- Division of Vectors and Parasitic Diseases, Centers for Disease Control and Prevention, Osong 28159, Korea
| | - Liji Xu
- Yanbian Center for Disease Control and Prevention, Yanbian Prefecture, China
| | - Chen Long Nan
- Yanbian Center for Disease Control and Prevention, Yanbian Prefecture, China
| | - Mi-Yeoun Park
- Division of Vectors and Parasitic Diseases, Centers for Disease Control and Prevention, Osong 28159, Korea
| | - Shin-Hyeong Cho
- Division of Vectors and Parasitic Diseases, Centers for Disease Control and Prevention, Osong 28159, Korea
| |
Collapse
|
22
|
Jin Y, Kim EM, Choi MH, Oh MD, Hong ST. Significance of Serology by Multi-Antigen ELISA for Tissue Helminthiases in Korea. J Korean Med Sci 2017; 32:1118-1123. [PMID: 28581268 PMCID: PMC5461315 DOI: 10.3346/jkms.2017.32.7.1118] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Accepted: 04/11/2017] [Indexed: 11/20/2022] Open
Abstract
It is clinically important to differentiate tissue-invading helminthiasis. The purpose of this study was to assess the specific immunoglobulin G (IgG) antibody positive rates for clonorchiasis, paragonimiasis, cysticercosis, and sparganosis 4 helminthiases from 1996 to 2006 using multi-antigen enzyme-linked immunosorbent assay (ELISA) in Korea. Results of 6,017 samples, which were referred to our institute for serodiagnosis, were analyzed. The subjects with positive serum IgG antibodies were 1,502 (25.0%) for any of the 4 helminthiases. The overall positive numbers for clonorchiasis, paragonimiasis, cysticercosis, and sparganosis were 728 (12.1%), 166 (2.8%), 729 (12.1%), and 263 (4.4%), respectively. The positive serologic reaction to multi-antigens was determined in 309 (20.6%) of the 1,502 total seropositive subjects. Those with multi-antigen positivity were regarded as positive for the antigen of strongest reaction but cross-reaction to others with weak positive reaction. Annual seropositive rates for those 4 tissue helminthiases ranged from 12.1% to 35.7%. The highest rate was observed in age from 60 to 69 years old and prevalence of men (27.4%; 1,030/3,763) was significantly higher than of women (19.1%; 332/1,741). Hospital records of 165 ELISA positive patients were reviewed to confirm correlation with their clinical diagnosis. Paragonimiasis was highly correlated as 81.8% (9/11), cysticercosis 29.9% (20/67), clonorchiasis 29.0% (20/69), and sparganosis 11.1% (2/18). In conclusion, the multi-antigen ELISA using 4 helminth antigens is useful to differentiate suspected tissue-invading helminthiases, especially ELISA diagnosis of paragonimiasis is reliable. The seropositivity is still high among suspected patients in Korea.
Collapse
Affiliation(s)
- Yan Jin
- Department of Microbiology, Dongguk University College of Medicine, Gyeongju, Korea
| | - Eun Min Kim
- Department of Environmental Medical Biology and Arthropods of Medical Importance Resource Research Bank, Institute of Tropical Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Min Ho Choi
- Department of Parasitology and Tropical Medicine, Institute of Endemic Diseases, Seoul National University College of Medicine, Seoul, Korea
| | - Myoung Don Oh
- Division of Infectious Diseases, Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Sung Tae Hong
- Department of Parasitology and Tropical Medicine, Institute of Endemic Diseases, Seoul National University College of Medicine, Seoul, Korea.
| |
Collapse
|
23
|
Sohn WM, Na BK, Cho SH, Park MY, Kim CH, Hwang MA, No KW, Yoon KB, Lim HC. Prevalence of Clonorchis sinensis Metacercariae in Fish from Water Systems of Seomjin-gang (River). THE KOREAN JOURNAL OF PARASITOLOGY 2017; 55:305-312. [PMID: 28719955 PMCID: PMC5523896 DOI: 10.3347/kjp.2017.55.3.305] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 05/18/2017] [Accepted: 05/20/2017] [Indexed: 11/23/2022]
Abstract
The prevalence of Clonorchis sinensis metacercariae (CsMc) was examined in freshwater fish from the water systems of Seomjin-gang (River), the Republic of Korea. Total 1,604 fish from 7 local sites of Seomjin-gang were examined by artificial digestion methods. The metacercariae of C. sinensis were detected in 102 (39.8%) out of 256 fish (14 species) from the upper reaches of Seomjin-gang, i.e., Osucheon (22.3% in 6 fish species) in Imsil-gun, and Seomjin-gang (63.9% in 9 fish species) in Sunchang-gun, Jeollabuk-do. Their average density was 9.0 per infected fish. They were also found in 132 (48.0%) out of 275 fish (12 spp.) from the middle reaches of Seomjin-gang, i.e., Songdaecheon (58.9% in 4 fish species) in Namwon-si, Jeollabuk-do, and Seomjin-gang (45.2% in 10 fish species) in Gokseong-gun, Jeollanam-do. Their average density was 21.0 per infected fish. CsMc were detected in 77 (56.6%) out of 136 fish (11 species) from the lower reaches of Seomjin-gang, i.e., Seomjin-gang (73.3% in 11 fish species) in Gurye-gun, Jeollanam-do, and Namsancheon (8.6% in 1 fish species) in Hadong-gun, Gyeongsangnam-do. Their average density was 64.9 per infected fish. The metacercariae of Metorchis orientalis were also detected in 6 fish species from 4 sites of Seomjin-gang. Conclusively, it has been confirmed that CsMc are more or less prevalent in fish from some water systems of Seomjin-gang in Korea.
Collapse
Affiliation(s)
- Woon-Mok Sohn
- Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju 52727, Korea
| | - Byoung-Kuk Na
- Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju 52727, Korea
| | - Shin-Hyeong Cho
- Division of Malaria and Parasitic Diseases, National Research Institute of Health, Centers for Disease Control and Prevention, Osong 28159, Korea
| | - Mi-Yeoun Park
- Division of Malaria and Parasitic Diseases, National Research Institute of Health, Centers for Disease Control and Prevention, Osong 28159, Korea
| | - Cheon-Hyeon Kim
- Division of Microorganism, Jeollabuk-do Institute of Health and Environment, Imsil 55928, Korea
| | - Min-Ah Hwang
- Division of Microorganism, Jeollabuk-do Institute of Health and Environment, Imsil 55928, Korea
| | - Kyeong-Woo No
- Division of Microorganism, Jeollabuk-do Institute of Health and Environment, Imsil 55928, Korea
| | - Ki-Bok Yoon
- Division of Microbiology, Jeollanam-do Institute of Health and Environment, Muan 58568, Korea
| | - Hyun-Cheol Lim
- Division of Microbiology, Jeollanam-do Institute of Health and Environment, Muan 58568, Korea
| |
Collapse
|
24
|
Epidemiological and Clinical Parameters Features of Patients with Clonorchiasis in the Geum River Basin, Republic of Korea. Interdiscip Perspect Infect Dis 2017; 2017:7415301. [PMID: 28529523 PMCID: PMC5424194 DOI: 10.1155/2017/7415301] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Accepted: 02/16/2017] [Indexed: 11/21/2022] Open
Abstract
This study was conducted to evaluate the infection rates of Clonorchis sinensis and laboratory findings in infected people. The 3,167 fecal samples, from nine villages in Okcheon-gun, were examined.
Collapse
|
25
|
Jeong JY, Lee JY, Chung BS, Choi Y, Alley AB, Kim HJ. A new method for estimating the prevalence of clonorchiasis in Korea: A proposal to replace arbitrary riverside sampling. Medicine (Baltimore) 2017; 96:e6536. [PMID: 28353615 PMCID: PMC5380299 DOI: 10.1097/md.0000000000006536] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
South Korea presently uses an arbitrary sampling method to monitor the prevalence of Clonorchis sinensis infection in the endemic areas of the country. However, the present method is not standardized and focuses primarily on individuals who reside nearest to the mainstream river. We propose a new sampling method that combines cluster sampling with proportionate quota sampling to ensure that the entire endemic area is accurately represented. We tested the new method in Okcheon-gun, South Korea, and determined that the C sinensis infection prevalence (8.9%) in 2013 was higher than that (6.9%) estimated in 2012 when the arbitrary method was used. Additionally, no difference was observed in the prevalence based on the distance from the riverside areas, including branches and creeks, between the areas <1 and >1 km away from the riversides. Therefore, health authorities should place equal emphasis on all regions within the endemic areas. Based on the findings, we recommend the following: the clonorchiasis prevalence rate must be measured using probability sampling, (clear guidelines on survey coverage should be provided to include the riverside areas and all areas nearby branch streams, and regional cohorts should be created for continuous monitoring of prevalence rates across the region.
Collapse
Affiliation(s)
- Jin-Young Jeong
- Department of Preventive Medicine, Okcheon-gun Public Health Center, Okcheon-gun, Chungcheongbuk-do
| | - Jin Yong Lee
- Public Health Medical Service, Boramae Medical Center, Seoul National University College of Medicine, Seoul
- Institute of Health Policy and Management, Medical Research Center, Seoul National University, Seoul
| | - Byung-Suk Chung
- Division of Malaria and Parasitic Diseases, National Institute of Health, Centers for Disease Control and Prevention, Cheongju, Chungcheongbuk-do
| | - Younghyun Choi
- Taean-gun Hospitalized Public Health Center, Taeangun, Chungcheongnam-do
| | | | - Hyun Joo Kim
- Department of Nursing Science, Shinsung University, Dangjin-si, Chungcheongnam-do, South Korea
| |
Collapse
|
26
|
Chung EJ, Jeong YI, Lee MR, Kim YJ, Lee SE, Cho SH, Lee WJ, Park MY, Ju JW. Heat shock proteins 70 and 90 from Clonorchis sinensis induce Th1 response and stimulate antibody production. Parasit Vectors 2017; 10:118. [PMID: 28249599 PMCID: PMC5333430 DOI: 10.1186/s13071-017-2026-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 02/09/2017] [Indexed: 01/08/2023] Open
Abstract
Background Heat shock proteins (HSPs) are found in all prokaryotes and most compartments of eukaryotic cells. Members of the HSP family mediate immune responses to tissue damage or cellular stress. However, little is known about the immune response induced by the oriental liver fluke, Clonorchis sinensis, even though this organism is carcinogenic to humans. We address this issue in the present study in mouse bone marrow dendritic cells (mBMDCs), using recombinant HSP70 and 90 from C. sinensis (rCsHSP70 and rCsHSP90). Methods rCsHSP70 and rCsHSP90 were produced in an E. coli system. Purified recombinant proteins were treated in BMDCs isolated from C57BL/6 mice. T cells were isolated from Balb/c mice and co-cultured with activated mBMDCs. Expression of surface molecules was measured by flow cytometry and cytokine secretion was quantified using ELISA. C57BL/6 mice were divided into four groups, including peptide alone, peptide/Freund’s adjuvant, peptide/CsHSP70, peptide/CsHSP90, and were immunized intraperitoneally three times. Two weeks after final immunization, antibodies against peptide were measured using ELISA. Results Both proteins induced a dose-dependent upregulation in major histocompatibility complex and co-stimulatory molecule expression and increased secretion of pro-inflammatory cytokines including interleukin (IL)-1β, -6, and -12p70 and tumor necrosis factor-α in mBMDCs. Furthermore, when allogenic T cells were incubated with mBMDCs activated by rCsHSP70 and rCsHSP90, the helper T cell (Th)1 cytokine interferon-γ was up-regulated whereas the level of the Th2 cytokine IL-4 was unchanged. These results indicate that rCsHSPs predominantly induce a Th1 response. Over and above these results, we also demonstrated that the production of peptide-specific antibodies can be activated after immunization via in vitro peptide binding with rCsHSP70 or rCsHSP90. Conclusion This study showed for the first time that the HSP or HSP/peptide complexes of C. sinensis could be considered as a more effective vaccine against C. sinensis infection as results of the activator of host immune response as well as the adjuvant for antigenic peptide conjugate to induce peptide-specific antibody response in mice.
Collapse
Affiliation(s)
- Eun Joo Chung
- Division of Malaria and Parasitic Diseases, Center for Immunology and Pathology, National Research Institute of Health, Korea Centers for Disease Control & Prevention, Osong, 28159, Republic of Korea
| | - Young-Il Jeong
- Division of Malaria and Parasitic Diseases, Center for Immunology and Pathology, National Research Institute of Health, Korea Centers for Disease Control & Prevention, Osong, 28159, Republic of Korea
| | - Myoung-Ro Lee
- Division of Malaria and Parasitic Diseases, Center for Immunology and Pathology, National Research Institute of Health, Korea Centers for Disease Control & Prevention, Osong, 28159, Republic of Korea
| | - Yu Jung Kim
- Division of Malaria and Parasitic Diseases, Center for Immunology and Pathology, National Research Institute of Health, Korea Centers for Disease Control & Prevention, Osong, 28159, Republic of Korea
| | - Sang-Eun Lee
- Division of Malaria and Parasitic Diseases, Center for Immunology and Pathology, National Research Institute of Health, Korea Centers for Disease Control & Prevention, Osong, 28159, Republic of Korea
| | - Shin-Hyeong Cho
- Division of Malaria and Parasitic Diseases, Center for Immunology and Pathology, National Research Institute of Health, Korea Centers for Disease Control & Prevention, Osong, 28159, Republic of Korea
| | - Won-Ja Lee
- Division of Malaria and Parasitic Diseases, Center for Immunology and Pathology, National Research Institute of Health, Korea Centers for Disease Control & Prevention, Osong, 28159, Republic of Korea
| | - Mi-Yeoun Park
- Division of Malaria and Parasitic Diseases, Center for Immunology and Pathology, National Research Institute of Health, Korea Centers for Disease Control & Prevention, Osong, 28159, Republic of Korea
| | - Jung-Won Ju
- Division of Malaria and Parasitic Diseases, Center for Immunology and Pathology, National Research Institute of Health, Korea Centers for Disease Control & Prevention, Osong, 28159, Republic of Korea.
| |
Collapse
|
27
|
Clonorchis sinensis Co-infection Could Affect the Disease State and Treatment Response of HBV Patients. PLoS Negl Trop Dis 2016; 10:e0004806. [PMID: 27348302 PMCID: PMC4922651 DOI: 10.1371/journal.pntd.0004806] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 06/04/2016] [Indexed: 12/14/2022] Open
Abstract
Background Clonorchis sinensis (C. sinensis) is considered to be an important parasitic zoonosis because it infects approximately 35 million people, while approximately 15 million were distributed in China. Hepatitis B virus (HBV) infection is a major public health issue. Two types of pathogens have the potential to cause human liver disease and eventually hepatocellular carcinoma. Concurrent infection with HBV and C. sinensis is often observed in some areas where C. sinensis is endemic. However, whether C. sinensis could impact HBV infection or vice versa remains unknown. Principal Findings Co-infection with C. sinensis and HBV develops predominantly in males. Co-infected C. sinensis and HBV patients presented weaker liver function and higher HBV DNA titers. Combination treatment with antiviral and anti-C. sinensis drugs in co-infected patients could contribute to a reduction in viral load and help with liver function recovery. Excretory-secretory products (ESPs) may, in some ways, increase HBV viral replication in vitro. A mixture of ESP and HBV positive sera could induce peripheral blood mononuclear cells (PBMCs) to produce higher level of Th2 cytokines including IL-4, IL-6 and IL-10 compared to HBV alone, it seems that due to presence of ESP, the cytokine production shift towards Th2. C. sinensis/HBV co-infected patients showed higher serum IL-6 and IL-10 levels and lower serum IFN-γ levels. Conclusions/Significance Patients with concomitant C. sinensis and HBV infection presented weaker liver function and higher HBV DNA copies. In co-infected patients, the efficacy of anti-viral treatment was better in patients who were prescribed with entecavir and praziquantel than entecavir alone. One possible reason for the weaker response to antiviral therapies in co-infected patients was the shift in cytokine production from Th1 to Th2 that may inhibit viral clearance. C. sinensis/HBV co-infection could exacerbate the imbalance of Th1/Th2 cytokine. Clonorchiasis and hepatitis B infection are infectious diseases that affect millions of people worldwide, especially in China. These two diseases are caused by two different pathogens, C. sinensis and hepatitis B virus, respectively. Concurrent infection between HBV and C. sinensis is often observed in some areas where C. sinensis is endemic. Both diseases share the same target organ, but there is little known on whether concomitant clonorchiasis could have an impact on HBV infection and the efficacy of antiviral treatment. In this study, we showed for the first time that co-infection with C. sinensis and HBV resulted in significantly higher liver transaminases levels as well as HBV DNA copies, indicating that co-infection with C. sinensis and HBV infection may aggravate the disease state. Combination treatment with antiviral and anti-C. sinensis drugs in co-infected patients could contribute to a reduction in viral load and help with liver function recovery. Furthermore, excretory-secretory products (ESPs) of C. sinensis may have a potential role in promoting HBV viral replication. This may explain, at least in part, the higher HBV DNA copies observed in co-infected patients. Additionally, a mixture of ESP and HBV positive sera could induce PBMCs to mainly produce Th2 cytokines such as IL-4, IL-6 and IL-10 compared to HBV alone. A possible reason for higher HBV DNA copies and a weaker response to antiviral therapies in co-infected patients was the shift in cytokine production from Th1 to Th2 that may inhibit viral clearance.
Collapse
|
28
|
Jeong YI, Shin HE, Lee SE, Cheun HI, Ju JW, Kim JY, Park MY, Cho SH. Prevalence of Clonorchis sinensis Infection among Residents along 5 Major Rivers in the Republic of Korea. THE KOREAN JOURNAL OF PARASITOLOGY 2016; 54:215-9. [PMID: 27180582 PMCID: PMC4870967 DOI: 10.3347/kjp.2016.54.2.215] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 01/12/2016] [Accepted: 01/20/2016] [Indexed: 12/14/2022]
Abstract
Clonorchis sinensis is currently the most important parasite affecting public health problems in the Republic of Korea. We investigated the prevalence of C. sinensis infection among residents living along 5 major rivers in Korea. A total of 42,562 individual stool samples were collected from 37 localities and examined using the formalin-ether sedimentation technique. Helminth eggs were detected in 4,052 (9.5%) residents and 3,586 (8.4%) were infected with C. sinensis. The egg positive rate of C. sinensis in Nakdong, Seomjin, Geum, Yeongsan, and Han River was 11.7%, 9.9%, 6.5%, 3.1%, and 1.0%, respectively. The overall prevalence of clonorchiasis by sex was 11.2% in males and 6.2% in females. The age-prevalence was the highest in the 50-59 years band. It has been reconfirmed that the endemicity of clonorchiasis is higher in southern areas of Korea, especially along Nakdong and Seomjin Rivers. A combination of continuous control programs with health education initiatives is urgently required in these highly endemic areas of clonorchiasis in Korea.
Collapse
Affiliation(s)
- Young-Il Jeong
- Division of Malaria and Parasite Diseases, Korea National Institute of Health, Korea Centers for Disease Control and Prevention, Cheongju (Osong) 28159, Korea
| | - Hee-Eun Shin
- Division of Malaria and Parasite Diseases, Korea National Institute of Health, Korea Centers for Disease Control and Prevention, Cheongju (Osong) 28159, Korea
| | - Sang-Eun Lee
- Division of Malaria and Parasite Diseases, Korea National Institute of Health, Korea Centers for Disease Control and Prevention, Cheongju (Osong) 28159, Korea
| | - Hyeng-Il Cheun
- Division of Malaria and Parasite Diseases, Korea National Institute of Health, Korea Centers for Disease Control and Prevention, Cheongju (Osong) 28159, Korea
| | - Jung-Won Ju
- Division of Malaria and Parasite Diseases, Korea National Institute of Health, Korea Centers for Disease Control and Prevention, Cheongju (Osong) 28159, Korea
| | - Jung-Yeon Kim
- Division of Malaria and Parasite Diseases, Korea National Institute of Health, Korea Centers for Disease Control and Prevention, Cheongju (Osong) 28159, Korea
| | - Mi Yeoun Park
- Division of Malaria and Parasite Diseases, Korea National Institute of Health, Korea Centers for Disease Control and Prevention, Cheongju (Osong) 28159, Korea
| | - Shin-Hyeong Cho
- Division of Malaria and Parasite Diseases, Korea National Institute of Health, Korea Centers for Disease Control and Prevention, Cheongju (Osong) 28159, Korea
| |
Collapse
|
29
|
Abstract
On Aug 21, 1875, James McConnell published in The Lancet his findings from a post-mortem examination of a 20-year-old Chinese man--undertaken at the Medical College Hospital in Calcutta, India--in whom he found Clonorchis sinensis in the bile ducts. Now, exactly 140 years later, we have a sound understanding of the lifecycle of this liver fluke, including key clinical, diagnostic, and epidemiological features. Developments in the so-called -omics sciences have not only advanced our knowledge of the biology and pathology of the parasite, but also led to the discovery of new diagnostic, drug, and vaccine targets. C sinensis infection is primarily related to liver and biliary disorders, especially cholangiocarcinoma. Clonorchiasis mainly occurs in east Asia, as a result of the region's social-ecological systems and deeply rooted cultural habit of consuming raw freshwater fish. The Kato-Katz technique, applied on fresh stool samples, is the most widely used diagnostic approach. Praziquantel is the treatment of choice and has been considered for preventive chemotherapy. Tribendimidine showed good safety and therapeutic profiles in phase 2 trials and warrants further investigation. Still today, the precise distribution, the exact number of infected people, subtle morbidities and pathogenesis, and the global burden of clonorchiasis are unknown. Integrated control strategies, consisting of preventive chemotherapy; information, education, and communication; environmental management; and capacity building through intersectoral collaboration should be advocated.
Collapse
Affiliation(s)
- Men-Bao Qian
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai, China; Key Laboratory of Parasite and Vector Biology, Ministry of Health, Shanghai, China; World Health Organization Collaborating Center for Tropical Diseases, Shanghai, China
| | - Jürg Utzinger
- Department of Epidemiology and Public Health, Swiss Tropical and Public Health Institute, and University of Basel, Basel, Switzerland
| | - Jennifer Keiser
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, and University of Basel, Basel, Switzerland
| | - Xiao-Nong Zhou
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai, China; Key Laboratory of Parasite and Vector Biology, Ministry of Health, Shanghai, China; World Health Organization Collaborating Center for Tropical Diseases, Shanghai, China.
| |
Collapse
|
30
|
Sohn WM, Na BK, Cho SH, Lee SW, Choi SB, Seok WS. Trematode Metacercariae in Freshwater Fish from Water Systems of Hantangang and Imjingang in Republic of Korea. THE KOREAN JOURNAL OF PARASITOLOGY 2015; 53:289-98. [PMID: 26174822 PMCID: PMC4510685 DOI: 10.3347/kjp.2015.53.3.289] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2015] [Revised: 05/12/2015] [Accepted: 05/13/2015] [Indexed: 11/24/2022]
Abstract
The infection status of freshwater fish with digenetic trematode metacercariae was examined in water systems of Hantangang and Imjingang (River), the Republic of Korea. A total of 877 (594 from Hantangang and 283 from Imjingang) fishes were examined by the artificial digestion methods. Clonorchis sinensis metacercariae were detected in 7 (1.2%) fishes (in 3 spp.) from Hantangang in Cheorwon-gun, Gangwon-do, and 40 (14.1%) fishes (in 7 spp.) from Munsancheon in Paju-si, Gyeonggi-do. The average densities were 1.9 and 35.6 per fish infected, respectively. Metagonimus spp. metacercariae were detected in 312 (52.5%) and 113 (39.9%) fishes from Hantangang and Imjingang, and their average densities were 47.5 and 9.6 per fish infected, respectively. Centrocestus armatus metacercariae were found in 161 (27.1%) and 70 (24.7%) fishes from Hantangang and Imjingang, and their average number per fish infected was 694 and 82, respectively. Echinostoma spp. metacercariae were detected in 50 (8.4%) and 94 (33.2%) fishes from Hantangang and Imjingang, and their average densities were 9.6 and 23.1 per fish infected, respectively. The infection status of fishes with metacercariae of Stephanoprora spp., Diplostomum spp., Clinostomum complanatum, Metorchis orientalis, and Metorchis taiwanensis were analyzed by surveyed regions. Conclusively, it was confirmed that C. sinensis metacercariae were quite commonly detected in fishes from Munsancheon but rarely from other localities, whereas the metacercariae of other digenetic trematodes were relatively prevalent in fishes from water systems of Hantangang and Imjingang in Korea.
Collapse
Affiliation(s)
- Woon-Mok Sohn
- Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju 660-751, Korea
| | - Byoung-Kuk Na
- Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju 660-751, Korea
| | - Shin-Hyeong Cho
- Division of Malaria and Parasitic Diseases, National Institute of Health, Centers for Disease Control and Prevention, Osong 363-951, Korea
| | - Soon-Won Lee
- Infection Disease Intelligence Division, Gangwon Institute of Health and Environment, Chuncheon 200-822, Korea
| | - Seung-Bong Choi
- Infection Disease Intelligence Division, Gangwon Institute of Health and Environment, Chuncheon 200-822, Korea
| | - Won-Seok Seok
- Infection Disease Intelligence Division, Gangwon Institute of Health and Environment, Chuncheon 200-822, Korea
| |
Collapse
|
31
|
Shin SS, Oh DS, Ahn KS, Cho SH, Lee WJ, Na BK, Sohn WM. Zoonotic Intestinal Trematodes in Stray Cats (Felis catus) from Riverside Areas of the Republic of Korea. THE KOREAN JOURNAL OF PARASITOLOGY 2015; 53:209-13. [PMID: 25925180 PMCID: PMC4416370 DOI: 10.3347/kjp.2015.53.2.209] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 03/04/2015] [Accepted: 03/05/2015] [Indexed: 11/23/2022]
Abstract
The present study was performed to survey the infection status of zoonotic intestinal trematode (ZIT) in stray cats from 5 major riverside areas in the Republic of Korea. Total 400 stray cats were captured with live-traps in riverside areas of Seomjingang ('gang' means river) (203 cats) from June to October 2010, and of Yeongsangang (41), Nakdonggang (57), Geumgang (38), and Hangang (61 cats) from June to October 2011, respectively. Small intestines resected from cats were opened with a pair of scissors in a beaker with 0.85% saline and examined with naked eyes and under a stereomicroscope. More than 16 ZIT species were detected in 188 (92.6%) cats from Seomjingang areas, and the number of worms recovered was 111 per cat infected. In cats from riverside areas of Yeongsangang, Nakdonggang, Geumgang, and Hangang, more than 9, 8, 3, and 5 ZIT species were recovered, and the worm burdens were 13, 42, 11, and 56 specimens per infected cat, respectively. As the members of family Heterophyidae, more than 10 species, i.e., Metagonimus spp., Pygidiopsis summa, Heterophyes nocens, Stellantchasmus falcatus, Heterophyopsis continua, Acanthotrema felis, Centrocestus armatus, Procerovum varium, Cryptocotyle concava, and Stictodora lari, were recovered. More than 5 species of echinostomes, i.e., Echinostoma hortense, Echinochasmus japonicus, Echinochasmus sp., Echinoparyphium sp., and unidentified larval echinostomes, were collected. Plagiorchis spp. were detected in cats from areas of Seomjin-gang and Yeongsangang. From the above results, it has been confirmed that stray cats in 5 major riverside areas of Korea are highly infected with various species of ZITs.
Collapse
Affiliation(s)
- Sung-Shik Shin
- Department of Parasitology, College of Veterinary Medicine, Chonnam National University, Gwangju 500-757, Korea
| | - Dae-Sung Oh
- Department of Parasitology, College of Veterinary Medicine, Chonnam National University, Gwangju 500-757, Korea
| | - Kyu-Sung Ahn
- Department of Parasitology, College of Veterinary Medicine, Chonnam National University, Gwangju 500-757, Korea
| | - Shin-Hyeong Cho
- Division of Malaria and Parasitic Diseases, National Institute of Health, Centers for Disease Control and Prevention, Osong 363-951, Korea
| | - Won-Ja Lee
- Division of Malaria and Parasitic Diseases, National Institute of Health, Centers for Disease Control and Prevention, Osong 363-951, Korea
| | - Byoung-Kuk Na
- Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju 660-751, Korea
| | - Woon-Mok Sohn
- Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju 660-751, Korea
| |
Collapse
|
32
|
Park DS, Na SJ, Cho SH, June KJ, Cho YC, Lee YH. Prevalence and risk factors of clonorchiasis among residents of riverside areas in Muju-gun, Jeollabuk-do, Korea. THE KOREAN JOURNAL OF PARASITOLOGY 2014; 52:391-7. [PMID: 25246718 PMCID: PMC4170035 DOI: 10.3347/kjp.2014.52.4.391] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Revised: 06/29/2014] [Accepted: 07/15/2014] [Indexed: 11/23/2022]
Abstract
We evaluated the status of Clonorchis sinensis infection and potential risk factors among residents of riverside areas (Geumgang) in Muju-gun, Jeollabuk-do (Province), Korea. From January to February 2010, a total of 349 (171 males, 178 females) stool samples were collected and examined by the formalin-ether concentration technique. Also, village residents were interviewed using questionnaires to obtain information about C. sinensis infection-related risk factors. Overall egg-positive rate of C. sinensis was 13.2%. Egg-positive rates were significantly higher in males, farmers, and residents who had lived there more than 20 years, and in residents who had eaten raw freshwater fish than in opposite groups, respectively. However, there was no significant difference between age groups, education levels, cigarette smoking, alcohol drinking, health status, past history of infection, and experience of clonorchiasis medication and examination. Logistic regression analysis was performed to determine risk factors for clonorchiasis. On univariate analysis, the odds ratios for males, farmers, those who had lived there more than 20 years, and who had eaten raw freshwater fish were 2.41, 4.44, 3.16, and 4.88 times higher than those of the opposites, respectively. On multivariate analysis, the odds ratio of residents who had eaten raw freshwater fish was 3.2-fold higher than that of those who had not. These results indicate that residents living in Muju-gun, along the Geum River, Korea, have relatively high C. sinensis egg-positive rates, and the habit of eating raw freshwater fish was the major factor for the maintenance of clonorchiasis.
Collapse
Affiliation(s)
- Do-Soon Park
- Graduate School of Public Health, Chungnam National University, Daejeon 301-131, Korea
| | - Sung-Jin Na
- Department of Infection Biology, School of Medicine, Chungnam National University, Daejeon 301-131, Korea
| | - Shin Hyeong Cho
- Division of Malaria and Parasitic Diseases, Korea National Institute of Health, Osong 363-951, Korea
| | - Kyung Ja June
- Department of Nursing, Soonchunhyang University, Chonan 330-090, Korea
| | - Young-Chae Cho
- Graduate School of Public Health, Chungnam National University, Daejeon 301-131, Korea
| | - Young-Ha Lee
- Department of Infection Biology, School of Medicine, Chungnam National University, Daejeon 301-131, Korea
| |
Collapse
|
33
|
Cho SH, Lee WJ, Kim TS, Seok WS, Lee T, Jeong K, Na BK, Sohn WM. Prevalence of zoonotic trematode metacercariae in freshwater fish from Gangwon-do, Korea. THE KOREAN JOURNAL OF PARASITOLOGY 2014; 52:399-412. [PMID: 25246719 PMCID: PMC4170036 DOI: 10.3347/kjp.2014.52.4.399] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Revised: 05/16/2014] [Accepted: 05/26/2014] [Indexed: 11/23/2022]
Abstract
The infection status of zoonotic trematode metacercariae was investigated in a total of 2,293 freshwater fish collected from 11 rivers or streams in 9 administrative regions of Gangwon-do, Korea for 5 years (2009-2013). All fish were collected by netting methods and examined using the artificial digestion methods. Clonorchis sinensis metacercariae were detected in 4 fish species, i.e., Pungtungia herzi, Squalidus japonicus coreanus, Acheilognathus rhombeus, and Ladislabia taczanowskii, from only Hantangang in Cheorwon-gun. Metagonimus spp. metacercariae were found in 1,154 (50.3%) fish and their average number per infected fish was 55.8. Among the positive fish species, especially Tribolodon hakonensis from Namdaecheon in Yangyang-gun and Plecoglossus altivelis from Osipcheon in Samcheok-si were most heavily infected. Centrocestus armatus metacercariae were detected in 611 (26.7%) fish and the average metacercarial burden per infected fish was 1,032. Two chub species, Zacco platypus and Zacco temminckii were highly and heavily infected with C. armatus metacercariae in almost all regions surveyed. Echinostoma spp. metacercariae were also found in 24 fish from a few localities, but their numbers per fish infected were very low. From the above results, it is confirmed that the metacercariae of intestinal flukes, especially Metagonimus spp. and C. armatus, were heavily infected, while C. sinensis metacercariae were rarely found in fish from Gangwon-do, Korea.
Collapse
Affiliation(s)
- Shin-Hyeong Cho
- Division of Malaria and Parasitic Diseases, National Institute of Health, Centers for Disease Control and Prevention, Osong 363-951, Korea
| | - Won-Ja Lee
- Division of Malaria and Parasitic Diseases, National Institute of Health, Centers for Disease Control and Prevention, Osong 363-951, Korea
| | - Tong-Soo Kim
- Department of Parasitology and Inha Research Institute for Medical Sciences, Inha University College of Medicine, Incheon 400-103, Korea
| | - Won-Seok Seok
- Infection Disease Intelligence Division, Gangwon Institute of Health and Environment, Chuncheon 200-822, Korea
| | - Taejoon Lee
- Infection Disease Intelligence Division, Gangwon Institute of Health and Environment, Chuncheon 200-822, Korea
| | - Kyungjin Jeong
- Infection Disease Intelligence Division, Gangwon Institute of Health and Environment, Chuncheon 200-822, Korea
| | - Byoung-Kuk Na
- Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju 660-751, Korea
| | - Woon-Mok Sohn
- Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju 660-751, Korea
| |
Collapse
|
34
|
Oh JK, Lim MK, Yun EH, Cho H, Park EY, Choi MH, Shin HR, Hong ST. Control of clonorchiasis in Korea: effectiveness of health education for community leaders and individuals in an endemic area. Trop Med Int Health 2014; 19:1096-104. [PMID: 24862476 DOI: 10.1111/tmi.12338] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
OBJECTIVES To develop effective intervention programmes to control Clonorchis sinensis infection, three interventions were evaluated in a clonorchiasis-endemic area of Korea. METHODS Four thousand two hundred and sixty-seven voluntary participants in Sancheong county were tested at baseline and two follow-up surveys after 1 and 3 years. Faecal samples were examined for C. sinensis eggs using the Kato-Katz method. Participants were divided into three intervention groups by areas and year recruited: national prevention programme only (mass health campaign and praziquantel treatment) for Group A; health education for community leaders added for Group B; and individual health education added for Group C. RESULTS The prevalence of C. sinensis infection fell substantially in all three intervention groups between baseline and 3-year follow-up: from 31.1% to 14.9% in Group A, from 29.6% to 6.8% in Group B and from 21.9% to 8.6% in Group C. The control effectiveness was highest in Group B with 76.8%. The new infection rate was 16.3%, 12.8% and 7.6% in Group A, B and C, respectively. The reinfection rate was lower in Group B (3.8%) than Group C (12.2%). CONCLUSIONS To control C. sinensis infection in endemic areas of Korea, health education for community leaders or individuals on prevention of C. sinensis infection should be added to national control programmes.
Collapse
Affiliation(s)
- Jin-Kyoung Oh
- Division of Cancer Prevention, National Cancer Control Institute, National Cancer Center, Gyeounggi-do, Korea
| | | | | | | | | | | | | | | |
Collapse
|
35
|
Cho J, Jung BK, Lim H, Kim MJ, Yooyen T, Lee D, Eom KS, Shin EH, Chai JY. Four cases of Taenia saginata infection with an analysis of COX1 gene. THE KOREAN JOURNAL OF PARASITOLOGY 2014; 52:79-83. [PMID: 24623887 PMCID: PMC3948999 DOI: 10.3347/kjp.2014.52.1.79] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Revised: 12/09/2013] [Accepted: 12/11/2013] [Indexed: 11/23/2022]
Abstract
Human taeniases had been not uncommon in the Republic of Korea (=Korea) until the 1980s. The prevalence decreased and a national survey in 2004 revealed no Taenia egg positive cases. However, a subsequent national survey in 2012 showed 0.04% (10 cases) prevalence of Taenia spp. eggs suggesting its resurgence in Korea. We recently encountered 4 cases of Taenia saginata infection who had symptoms of taeniasis that included discharge of proglottids. We obtained several proglottids from each case. Because the morphological features of T. saginata are almost indistinguishable from those of Taenia asiatica, molecular analyses using the PCR-RFLP and DNA sequencing of the cytochrome c oxidase subunit 1 (cox1) were performed to identify the species. The PCR-RFLP patterns of all of the 4 specimens were consistent with T. saginata, and the cox1 gene sequence showed 99.8-100% identity with that of T. saginata reported previously from Korea, Japan, China, and Cambodia. All of the 4 patients had the history of travel abroad but its relation with contracting taeniasis was unclear. Our findings may suggest resurgence of T. saginata infection among people in Korea.
Collapse
Affiliation(s)
- Jaeeun Cho
- Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine, Seoul 110-799, Korea
| | - Bong-Kwang Jung
- Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine, Seoul 110-799, Korea
| | - Hyemi Lim
- Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine, Seoul 110-799, Korea
| | - Min-Jae Kim
- Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine, Seoul 110-799, Korea. ; Department of Internal Medicine, Seoul National University College of Medicine, Seoul 110-799, Korea
| | - Thanapon Yooyen
- Department of Biology, Faculty of Science, Thaksin University, Phatthalung 93110, Thailand
| | - Dongmin Lee
- Department of Parasitology, Medical Research Institute and Parasite Resource Bank, Chungbuk National University School of Medicine, Cheongju 361-763, Korea
| | - Keeseon S Eom
- Department of Parasitology, Medical Research Institute and Parasite Resource Bank, Chungbuk National University School of Medicine, Cheongju 361-763, Korea
| | - Eun-Hee Shin
- Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine, Seoul 110-799, Korea. ; Seoul National University Bundang Hospital, Seongnam 463-707, Korea
| | - Jong-Yil Chai
- Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine, Seoul 110-799, Korea
| |
Collapse
|
36
|
Choi W, Chu J. The characteristics of the expression of heat shock proteins and COX-2 in the liver of hamsters infected with Clonorchis sinensis, and the change of endocrine hormones and cytokines. Folia Parasitol (Praha) 2013; 59:255-63. [PMID: 23327006 DOI: 10.14411/fp.2012.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The liver fluke Clonorchis sinensis (Digenea) is a high-risk parasite that causes serious diseases such as cirrhosis, carcinogenic liver damage and clonorchiasis in East Asia. This study was conducted to evaluate the relationship between stress/endocrine hormones and inflammation induced by infection as well as the expression of heat shock proteins (hsp-27, hsp-90), cox-2 and cytokines in the livers of hamsters infected with C. sinensis. The average body weight of infected hamsters decreased up to 25% compared with that of the control group, and bile duct hyperplasia with inflammation, liver fibrosis and hepatic necrosis were observed in C. sinensis-infected livers. The expression of hsp-27, hsp-90, and cox-2 was significantly increased in the livers of C. sinensis-infected hamsters compared with the control group. Moreover, the expression levels of inflammatory cytokines (IL-1beta, IL-2, TGF-beta2 and IFN-alpha1) were markedly increased in the livers of the infected group compared with those of the control group. Consistently, plasma IL-3 and IL-6 levels gradually increased during the infection period, and the concentration levels of testosterone, luteinizing hormone (LH), follicle-stimulating hormone (FSH), corticosterone, and adrenocorticotropic hormone (ACTH) in C. sinensis-infected hamsters increased over 25%, compared with those of the uninfected normal group. These results demonstrate that C. sinensis infection may increase the expression of hsp27, hsp90 and cox-2 as well as it may cause periductal fibrosis, chronic inflammation and hepatic necrosis in the liver. Furthermore, the results indicate that C. sinensis infection induces not only stress-induced hormone imbalance but also the sustained secretion of inflammatory cytokines through chronic stress/stimuli.
Collapse
Affiliation(s)
- WonHyung Choi
- Department of Medical Zoology, Kyung Hee University School of Medicine, 26 Kyunghee-daero, Dongdaemun-gu, Seoul 130-701, Republic of Korea.
| | | |
Collapse
|
37
|
Chai JY. Human taeniasis in the Republic of Korea: hidden or gone? THE KOREAN JOURNAL OF PARASITOLOGY 2013; 51:9-17. [PMID: 23467688 PMCID: PMC3587755 DOI: 10.3347/kjp.2013.51.1.9] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2012] [Revised: 12/18/2012] [Accepted: 12/18/2012] [Indexed: 11/23/2022]
Abstract
History and current status of human taeniasis in the Republic of Korea, due to Taenia solium, Taenia asiatica, and Taenia saginata, are briefly reviewed. Until the 1980s, human taeniasis had been quite common in various localities of Korea. A study from 1924 reported 12.0% egg prevalence in fecal examinations. Thereafter, the prevalence of Taenia spp. ranged from 3% to 14% depending on the time and locality. Jeju-do, where pigs were reared in a conventional way, was the highest endemic area of taeniasis. An analysis of internal transcribed spacer 2 and mitochondrial cytochrome c oxidase 1 genes of 68 taeniasis cases reported from 1935 to 2005 in Korea by a research group revealed the relative occurrence of the 3 Taenia spp. as follows: T. solium (4.4%), T. asiatica (75.0%), and T. saginata (20.6%). However, national surveys on intestinal helminths conducted every 5 years on randomly selected people revealed that the Taenia egg prevalence dropped from 1.9% in 1971 to 0.02% in 1997 and finally to 0.0% in 2004. With the exception of 3 egg-positive cases reported in 2008 and 2 worm-proven cases in 2011, no more cases have been officially recorded. Based on these surveys and also on other literature, it can be concluded that taeniasis has virtually disappeared from Korea, although a few sporadic cases may remain hidden. Human cysticercosis is also expected to disappear within a couple of decades in Korea.
Collapse
Affiliation(s)
- Jong-Yil Chai
- Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine, and Institute of Endemic Diseases, Seoul National University Medical Research Center, Seoul 110-799, Korea.
| |
Collapse
|
38
|
Qian MB, Chen YD, Liang S, Yang GJ, Zhou XN. The global epidemiology of clonorchiasis and its relation with cholangiocarcinoma. Infect Dis Poverty 2012; 1:4. [PMID: 23849183 PMCID: PMC3710150 DOI: 10.1186/2049-9957-1-4] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Accepted: 09/24/2012] [Indexed: 11/10/2022] Open
Abstract
This paper reviews the epidemiological status and characteristics of clonorchiasis at global level and the etiological relationship between Clonorchis sinensis infection and cholangiocarcinoma (CCA). A conservative estimation was made that 15 million people were infected in the world in 2004, of which over 85% distributed in China. The epidemiology of clonorchiasis is characterized by rising trend in its prevalence, variability among sexes and age, as well as endemicity in different regions. More data indicate that C. sinensis infection is carcinogenic to human, and it is predicted that nearly 5 000 CCA cases attributed to C. sinensis infection may occur annually in the world decades later, with its overall odds ratio of 4.47. Clonorchiasis is becoming one major public health problem in east Asia, and it is worthwhile to carry out further epidemiological studies.
Collapse
Affiliation(s)
- Men-Bao Qian
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention; WHO Collaborative Center for Malaria, Schistosomiasis and Filariasis; Key Laboratory of Parasite and Vector Biology, Ministry of Health, Shanghai, People’s Republic of China
| | - Ying-Dan Chen
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention; WHO Collaborative Center for Malaria, Schistosomiasis and Filariasis; Key Laboratory of Parasite and Vector Biology, Ministry of Health, Shanghai, People’s Republic of China
| | - Song Liang
- Department of Environmental and Global Health, College of Public Health and Health Professions, and Emerging Pathogens Institute, University of Florida, Gainesville, USA
| | - Guo-Jing Yang
- Jiangsu Institute of Parasitic Diseases, Wuxi, People’s Republic of China
- School of Public Health, Chinese University of Hong Kong, Hong Kong, People’s Republic of China
| | - Xiao-Nong Zhou
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention; WHO Collaborative Center for Malaria, Schistosomiasis and Filariasis; Key Laboratory of Parasite and Vector Biology, Ministry of Health, Shanghai, People’s Republic of China
| |
Collapse
|
39
|
Hwang KJ, Heo SH, Chang DI. Multiple microembolic brain infarctions in Clonorchis sinensis infestation. J Neurol Sci 2012; 319:133-4. [DOI: 10.1016/j.jns.2012.05.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2011] [Revised: 05/08/2012] [Accepted: 05/10/2012] [Indexed: 11/26/2022]
|
40
|
Choi MH, Chang YS, Lim MK, Bae YM, Hong ST, Oh JK, Yun EH, Bae MJ, Kwon HS, Lee SM, Park HW, Min KU, Kim YY, Cho SH. Clonorchis sinensis infection is positively associated with atopy in endemic area. Clin Exp Allergy 2012; 41:697-705. [PMID: 21488996 DOI: 10.1111/j.1365-2222.2011.03746.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Epidemiologic studies have suggested that helminth infections play a protective role against allergy; this inverse association, however, has not been consistent. Clonorchis sinensis, the liver fluke of human, is prevalent in the Far East. The association between C. sinensis infection and allergy has not yet been reported. OBJECTIVE We evaluated the association between clonorchiasis and atopy or allergic diseases in adults in endemic areas of clonorchiasis. METHODS A total of 1116 subjects (males 419, females 697; age range, 30-86; mean age=61 years) were recruited from two endemic areas of C. sinensis in Korea. Clonorchiasis was confirmed by stool examination. Allergic symptoms were evaluated with a modified ISAAC questionnaire, and atopy was defined by skin prick test for common inhalant allergens. Total serum IgE and C. sinensis-specific IgE level was measured by ELISA and methacholine bronchial provocation test was performed to evaluate airway hyperresponsiveness (AHR). RESULTS Clonorchiasis was positively associated with atopy [odds ratio (OR), 1.856; 95% confidence interval (CI), 1.199-2.873] and high levels of total serum IgE (OR, 1.455; 95% CI, 1.050-2.016). Higher association with clonorchiasis was shown in subjects who showed both atopy and high total serum IgE levels (OR, 2.540; 95% CI, 1.448-4.455). Clonorchiasis had no association with wheezing, AHR, asthma or allergic rhinitis. CONCLUSION AND CLINICAL RELEVANCE Clonorchiasis was positively associated with atopy in adults in endemic area.
Collapse
Affiliation(s)
- M-H Choi
- Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine, Institute of Endemic Diseases, Seoul National University Medical Research Center, Seoul, Korea
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Cho SH, Sohn WM, Na BK, Kim TS, Kong Y, Eom K, Seok WS, Lee T. Prevalence of Clonorchis sinensis metacercariae in freshwater fish from three latitudinal regions of the Korean Peninsula. THE KOREAN JOURNAL OF PARASITOLOGY 2011; 49:385-98. [PMID: 22355206 PMCID: PMC3279677 DOI: 10.3347/kjp.2011.49.4.385] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2011] [Revised: 10/31/2011] [Accepted: 11/03/2011] [Indexed: 11/23/2022]
Abstract
A large-scale survey was conducted to investigate the infection status of fresh water fishes with Clonorchis sinensis metacercariae (CsMc) in 3 wide regions, which were tentatively divided by latitudinal levels of the Korean peninsula. A total of 4,071 freshwater fishes were collected from 3 regions, i.e., northern (Gangwon-do: 1,543 fish), middle (Chungcheongbuk-do and Gyeongsangbuk-do: 1,167 fish), and southern areas (Jeollanam-do, Ulsan-si, and Gyeongsangnam-do: 1,361 fish). Each fish was examined by the artificial digestion method from 2003 to 2010. In northern areas, only 11 (0.7%) fish of 2 species, Pungtungia herzi and Squalidus japonicus coreanus from Hantan-gang, Cheolwon-gun, Gangwon-do were infected with av. 2.6 CsMc. In middle areas, 149 (12.8%) fish were infected with av. 164 CsMc. In southern areas, 538 (39.5%) fish were infected with av. 159 CsMc. In the analysis of endemicity in 3 regions with an index fish, P. herzi, 9 (6.2%) of 146 P. herzi from northern areas were infected with av. 2.8 CsMc. In middle areas, 34 (31.8%) of 107 P. herzi were infected with av. 215 CsMc, and in southern areas, 158 (92.9%) of 170 P. herzi were infected with av. 409 CsMc. From these results, it has been confirmed that the infection status of fish with CsMc is obviously different among the 3 latitudinal regions of the Korean peninsula with higher prevalence and burden in southern regions.
Collapse
Affiliation(s)
- Shin-Hyeong Cho
- Division of Malaria and Parasitic Diseases, National Institute of Health, Centers for Disease Control and Prevention, Osong 363-951, Korea
| | | | | | | | | | | | | | | |
Collapse
|
42
|
Lee MR, Kim YJ, Kim DW, Yoo WG, Cho SH, Hwang KY, Ju JW, Lee WJ. The identification of antigenic proteins: 14-3-3 protein and propionyl-CoA carboxylase in Clonorchis sinensis. Mol Biochem Parasitol 2011; 182:1-6. [PMID: 22119288 DOI: 10.1016/j.molbiopara.2011.11.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2011] [Revised: 11/07/2011] [Accepted: 11/08/2011] [Indexed: 11/16/2022]
Abstract
Clonorchis sinensis, the causative agent of clonorchiasis, is widespread in East and Southeast Asia, including China, Vietnam and the Republic of Korea. We identified antigenic proteins from adult C. sinensis liver flukes using immunoproteomic analysis. In this study, we found 23 candidate antigenic proteins with a pI in the range of 5.4-6.2 in total lysates of C. sinensis. The antigenic protein spots reacted against sera from clonorchiasis patients and were identified as cysteine proteases, glutathione transferases, gelsolin, propionyl-CoA carboxylase (PCC), prohibitin and 14-3-3 protein (14-3-3) using LC-coupled ESI-MS/MS and an EST database for C. sinensis. PCC and 14-3-3 were identified for the first time as serological antigens for the diagnosis of C. sinensis. To validate the antigenicity of PCC and 14-3-3, recombinant proteins were immunoblotted with sera from clonorchiasis patients. The structural, functional and immunological characteristics of the putative amino acid sequence were predicted by bioinformatics analysis. Our novel finding will contribute to the development of diagnostics for clonorchiasis. These results suggest that immunoproteomic approaches are valuable tools to identify antigens that could be used as targets for effective parasitic infection control strategies.
Collapse
Affiliation(s)
- Myoung-Ro Lee
- Division of Malaria and Parasitic Diseases, Korea National Institute of Health, Osong, Republic of Korea.
| | | | | | | | | | | | | | | |
Collapse
|
43
|
Kim JH, Choi MH, Bae YM, Oh JK, Lim MK, Hong ST. Correlation between discharged worms and fecal egg counts in human clonorchiasis. PLoS Negl Trop Dis 2011; 5:e1339. [PMID: 21991401 PMCID: PMC3186755 DOI: 10.1371/journal.pntd.0001339] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2011] [Accepted: 08/17/2011] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Stool examination by counting eggs per gram of feces (EPGs) is the best method to estimate worm burden of Clonorchis sinensis in infected humans. The present study investigated a correlation between EPGs and worm burden in human clonorchiasis. METHODS AND FINDINGS A total of 60 residents, 50 egg-positive and 10 egg-negative, in Sancheong-gun, Korea, participated in this worm collection trial in 2006-2009. They were diagnosed by egg positivity in feces using the Kato-Katz method. After administration of praziquantel, they were purged with cathartics on the next day, and then discharged adult worms were collected from their feces. Their EPGs ranged from 0 to 65,544. Adult worms of C. sinensis were collected from 17 egg-positive cases, and the number of worms ranged from 1 to 114 in each individual. A positive correlation between EPGs and numbers of worms was demonstrated (r = 0.681, P<0.001). Worm recovery rates were 9.7% in cases of EPGs 1-1,000 and 73.7% in those of EPGs over 1,000. No worms were detected from egg-negative subjects. Maximum egg count per worm per day was roughly estimated 3,770 in a subject with EPGs 2,664 and 106 collected worms. CONCLUSIONS The numbers of the worms are significantly correlated with the egg counts in human clonorchiasis. It is estimated that at least 110 worms are infected in a human body with EPGs around 3,000, and egg productivity of a worm per day is around 4,000.
Collapse
Affiliation(s)
- Jae-Hwan Kim
- Department of Parasitology and Tropical Medicine and Institute of Endemic Diseases, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Min-Ho Choi
- Department of Parasitology and Tropical Medicine and Institute of Endemic Diseases, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Young Mee Bae
- Department of Parasitology and Tropical Medicine and Institute of Endemic Diseases, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jin-Kyoung Oh
- National Cancer Control Institute, National Cancer Center, Goyang-si Gyeonggi-do, Republic of Korea
| | - Min Kyung Lim
- National Cancer Control Institute, National Cancer Center, Goyang-si Gyeonggi-do, Republic of Korea
| | - Sung-Tae Hong
- Department of Parasitology and Tropical Medicine and Institute of Endemic Diseases, Seoul National University College of Medicine, Seoul, Republic of Korea
| |
Collapse
|
44
|
Kim BG, Kang DH, Choi CW, Kim HW, Lee JH, Kim SH, Yeo HJ, Lee SY. A case of clonorchiasis with focal intrahepatic duct dilatation mimicking an intrahepatic cholangiocarcinoma. Clin Endosc 2011; 44:55-8. [PMID: 22741114 PMCID: PMC3363046 DOI: 10.5946/ce.2011.44.1.55] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2011] [Revised: 08/25/2011] [Accepted: 09/05/2011] [Indexed: 01/10/2023] Open
Abstract
Biliary strictures can be caused by various diseases. Intrahepatic duct (IHD) strictures are usually related to IHD stones and cholangitis. However, focal IHD strictures without IHD stones often create diagnostic problems. Parasitic diseases such as clonorchiasis can be a rare cause of an IHD stricture. Human clonorchiasis (Clonorchis sinensis infection) is an endemic parasitic disease in Eastern Asia, including Korea, and patients acquire the infestation by eating raw fish. On radiological examinations, clonorchiasis shows typically diffuse, minimal, or mild dilatation of the small IHD, particularly in the periphery, without dilatation of the extrahepatic duct. However, diagnosis of clonorchiasis can sometimes be difficult when radiological changes are atypical. We report a case of focal left IHD dilatation caused by clonorchiasis that was confused with a malignancy.
Collapse
Affiliation(s)
- Bong Gap Kim
- Department of Internal Medicine, Pusan National University College of Medicine, Yangsan, Korea
| | | | | | | | | | | | | | | |
Collapse
|
45
|
Hong ST, Fang Y. Clonorchis sinensis and clonorchiasis, an update. Parasitol Int 2011; 61:17-24. [PMID: 21741496 DOI: 10.1016/j.parint.2011.06.007] [Citation(s) in RCA: 136] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2011] [Revised: 06/08/2011] [Accepted: 06/11/2011] [Indexed: 01/16/2023]
Abstract
Clonorchis sinensis is the most common human liver fluke in East Asia. Several studies proved its carcinogenesis in humans and it was reclassified as a group 1 biological carcinogen in 2009. It is still actively transmitted in endemic areas of Korea, China, Russia, and Vietnam. Currently it is estimated that more than 200 million people are at risk of infection, 15-20 million people are infected and 1.5-2 million show symptoms or complications. Several molecules and genes of the fluke have been identified and characterized. Studies on its oncogenesis and omics-based findings have been especially encouraging. Diagnosis of its infection depends mainly on detection of eggs in feces but other methods have been developed. ELISA using crude extract antigen is now popular for its diagnosis. Diagnosis by detecting DNAs from eggs in feces has been developed using PCR, real-time PCR, and LAMP, which have been found sensitive and specific. Imaging diagnosis has been studied in depth and is widely used. Any evidence of clonorchiasis, such as eggs, DNAs, or images, may lead to recommendations of chemotherapy in endemic areas. Praziquantel is the major chemotherapeutic agent for clonorchiasis and recently tribendimidine was found effective and is now under investigation as a promising chemotherapeutic alternative. Sustainable control programs which include mass chemotherapy with praziquantel and education for prevention of re-infection may reduce its morbidity and eliminate its infections in endemic areas.
Collapse
Affiliation(s)
- Sung-Tae Hong
- Department of Parasitology and Tropical Medicine, Institute of Endemic Diseases, Seoul National University College of Medicine, Seoul 110-799, Republic of Korea.
| | | |
Collapse
|
46
|
Kim CH, Lee JK, Chung BS, Li S, Choi MH, Hong ST. Influencing factors for cure of clonorchiasis by praziquantel therapy: infection burden and CYP3A5 gene polymorphism. THE KOREAN JOURNAL OF PARASITOLOGY 2011; 49:45-9. [PMID: 21461268 PMCID: PMC3063925 DOI: 10.3347/kjp.2011.49.1.45] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2010] [Revised: 11/29/2010] [Accepted: 12/16/2010] [Indexed: 11/23/2022]
Abstract
Chemotherapy of clonorchiasis with praziquantel (PZQ) is effective but about 15% of treated cases have been reported uncured. The present study investigated correlation of single nucleotide polymorphisms (SNPs) of the cytochrome P450 gene, CYP3A5 and cure of clonorchiasis. A total of 346 egg passing residents were subjected and treated by 3 doses of 25 mg/kg PZQ. Reexamination recognized 33 (9.5%) uncured and 313 cured. Numbers of eggs per gram of feces (EPGs) before treatment were significantly lower in the cured group than in the uncured group (2,011.2±3,600.0 vs 4,998.5±7,012.0, P<0.001). DNAs of the subjects were screened for SNPs at 7 locations of CYP3A5 using PCR. In the uncured group, the SNP frequencies at g.-20555G>A and g.27526C>T of CYP3A5 were 15.2% and 9.1% while those were 3.8% and 1.0%, respectively, in the cured group. The cure rate was significantly lower in the cases with SNP at g.27526C>T and EPGs≥1,000. In conclusion, EPGs and SNPs of CYP3A5 are factors which influence cure of clonorchiasis by PZQ therapy. It is strongly suggested to recommend 2-day medication for individuals with high EPGs≥1,000.
Collapse
Affiliation(s)
- Chung Hyeon Kim
- Department of Parasitology and Tropical Medicine, and Institute of Infectious Diseases, Seoul National University College of Medicine, Seoul 110-799, Korea
| | | | | | | | | | | |
Collapse
|
47
|
Lee MY, Cho EJ, Lee JH, Han SH, Park YS. A ten-year survey of Giardia cysts in drinking water supplies of Seoul, the Republic of Korea. THE KOREAN JOURNAL OF PARASITOLOGY 2011; 49:9-15. [PMID: 21461263 PMCID: PMC3063933 DOI: 10.3347/kjp.2011.49.1.9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2010] [Revised: 12/13/2010] [Accepted: 12/16/2010] [Indexed: 11/23/2022]
Abstract
To understand the distribution of Giardia cysts in drinking water supplies in Seoul, Korea, we collected water samples quarterly at 6 intakes in the Han River, its largest stream and 6 conventional water treatment plants (WTPs) serving drinking water, from 2000 to 2009. Giardia cysts in each of 10 L water were confirmed in 35.0% of intake water samples and the arithmetic mean was 1.65 cysts/10 L (range 0-35 cysts/10 L). The lowest cyst density was observed at Paldang and Kangbuk intakes, and the pollution level was higher at 4 intakes downstream. It seemed that these 4 intakes were under influence of Wangsuk stream at the end of which cysts were found in all samples with the mean of 140 cysts/10 L. The annual mean number of cysts was 0.21-4.21 cysts/10 L, and the cyst level at the second half of the 10 years was about 1/5 of that at first half on average. The cysts were more frequently found in winter, and their mean density was 3.74 cysts/10 L in winter and 0.80-1.08 cysts/10 L in other seasons. All finished water samples collected at 6 WTPs were negative for Giardia in each of 100 L sample for 10 years and cyst removal by physical process was average 2.9-log. It was concluded that conventional water treatment at 6 WTPs of Seoul appears to remove the cysts effectively under the present level of their source water. Domestic wastewater from the urban region could be an important source of Giardia pollution in the river.
Collapse
Affiliation(s)
- Mok-Young Lee
- Seoul Waterworks Research Institute, Seoul 143-202, Korea.
| | | | | | | | | |
Collapse
|
48
|
Lim JU, Joo KR, Shin HP, Cha JM, Lee JI, Lim SJ. Obstructive jaundice caused by Clonorchiasis-associated duodenal papillitis: a case report. J Korean Med Sci 2011; 26:135-7. [PMID: 21218042 PMCID: PMC3012838 DOI: 10.3346/jkms.2011.26.1.135] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2010] [Accepted: 07/22/2010] [Indexed: 11/25/2022] Open
Abstract
We describe an unusual presentation of Clonorchis sinensis infection with obstructive jaundice due to duodenal papillitis which was relieved dramatically by endoscopic sphincterotomy. A 26-yr-old male presented with complaints of fatigue, weight loss and painless jaundice. The history was significant for frequent ingestion of raw freshwater fish. The patient underwent endoscopic retrograde cholangiopancreatography for evaluation of obstructive jaundice. The duodenal papilla was markedly edematous with a bulging configuration and hyperemic changes at the orifice. Cholangiography revealed mild bile duct dilatation and irregular wall changes with multiple indentations. However, there were no biliary stricture or stones noted as the cause of obstructive jaundice. We performed an endoscopic sphincterotomy for effective bile drainage through the duodenal papilla. After the sphincterotomy, the patient's jaundice was dramatically improved. Pathology of the duodenal papilla showed eosinophilic infiltration of the mucosa. Parasitic eggs, consistent with the diagnosis of C. sinensis, were found in the bile sample.
Collapse
Affiliation(s)
- Jun Uk Lim
- Department of Internal Medicine, East-West Neo Medical Center, Kyung Hee University School of Medicine, Seoul, Korea.
| | | | | | | | | | | |
Collapse
|
49
|
Kim HK, Cheun HI, Cheun BS, Lee KY, Kim TS, Lee SE, Lee WJ, Cho SH. Prevalence of Clonorchis sinensis Infections Along the Five Major Rivers in Republic of Korea, 2007. Osong Public Health Res Perspect 2010; 1:43-9. [PMID: 24159439 PMCID: PMC3766887 DOI: 10.1016/j.phrp.2010.12.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2010] [Revised: 10/12/2010] [Accepted: 10/22/2010] [Indexed: 11/18/2022] Open
Abstract
Objectives The prevalence of Clonorchis sinensis infection was investigated among residents of the five major river basins, that is, Hangang, Nakdonggang, Seomjingang, Yeongsangang, and Geumgang River basins in Korea. Methods From January to December 2007, a total of 31,268 stool samples were collected from 29 localities and examined by the formalin-ether sedimentation technique. Results Intestinal parasite eggs and/or protozoan cysts were detected from 2957 (9.5%) inhabitants. Number of residents harbouring helminth eggs in the faeces was 2542 (8.1%) for C. sinensis, 255 (0.8%) for Heterophyes spp., 36 (0.1%) for Echinostoma spp., 30 (0.1%) for Trichuris trichiura, 8 (0.03%) for Ascaris lumbricoides, 7 (0.02%) for Gymnophalloide seoi, and 50 (0.02%) for Trichostrongylus orientalis. Number of residents harbouring protozoan cysts in the faeces was 133 (1.3%) for Entamoeba spp. and 50 (0.2%) for Giardia lamblia. The positive rates of C. sinensis in Nakdonggang, Seomjingang, Yeongsangang, Geumgang, and Hangang River basins were 12.2%, 9.5%, 3.3%, 3.0%, and 1.0%, respectively. The egg positive rate of C. sinensis was higher in male (10.6%) than in female (6.1%), and the age group of 50s had the highest positive rate (10.4%). Conclusion The result of this study revealed little decrease in positive rate of C. sinensis compared with the result of southern endemic areas of Korea in 2006.
Collapse
Affiliation(s)
- Hyun-Kyung Kim
- Division of Malaria and Parasitic Diseases, National Institute of Health, Korea Centers for Disease Control and Prevention, Seoul, Korea
| | | | | | | | | | | | | | | |
Collapse
|
50
|
Lee MK, Hong SJ, Kim HR. Seroprevalence of tissue invading parasitic infections diagnosed by ELISA in Korea. J Korean Med Sci 2010; 25:1272-6. [PMID: 20808668 PMCID: PMC2923801 DOI: 10.3346/jkms.2010.25.9.1272] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2009] [Accepted: 02/12/2010] [Indexed: 11/20/2022] Open
Abstract
Seroprevalence of the IgG antibodies for Clonorchis sinensis, Paragonimus westermani, Taenia solium metacestode (cysticercus), and Spirometra erinacei plerocercoid (sparganum) was measured using enzyme-linked immunosorbent assay (ELISA) in sera of patients in Korea from 1993 to 2006. A total of 74,448 specimens referred nationwide from 121 hospitals revealed an IgG positive rate of 7.6% for the 4 parasites. The IgG positive rate (18.7%) for the 4 parasites in 1993 decreased gradually to 6.6% in 2006. Individual positive rate decreased from 5.2% (1993) to 1.6% (2006) for C. sinensis, from 2.8% (1993) to 1.1% (2006) for P. westermani, from 8.3% (1993) to 2.2% (2006) for cysticercus, and from 2.6% (1993) to 1.6% (2006) for sparganum. The positive rate was highest (21.2%) in the group of patients who ranged in age from 50-59 yr old, and in the group that was referred from the Seoul area (55.9%). In conclusion, our results suggest that tissue invading parasitic infections should always be included in differential diagnosis for patients with eosinophilia associated lesions of the central nervous system, liver, and lungs in Korea.
Collapse
Affiliation(s)
- Mi Kyung Lee
- Department of Laboratory Medicine, Chung-Ang University College of Medicine, Seoul, Korea
| | - Sung-Jong Hong
- Department of Medical Environmental Biology, Chung-Ang University College of Medicine, Seoul, Korea
| | - Hye Ryoun Kim
- Department of Laboratory Medicine, Chung-Ang University College of Medicine, Seoul, Korea
| |
Collapse
|