Opisthorchis viverrini infection in rural and urban communities in northeast Thailand

Kurathong, S; Lerdverasirikul, P; Wongpaitoon, Virasak; Pramoolsinsap, Chutima; Upatham, E. S.

doi:10.1016/0035-9203(87)90154-4

Cited by 24 publications

(5 citation statements)

References 3 publications

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“…Kusumaporn Chaiputcha 1,3 , Supannee Promthet 1 *, Peter Bradshaw 1 to be conducted in rural villages rather than in urban environments because rural residents are assumed to be at higher risk of infection (Songserm et al 2012b). While there is some evidence that this may be the case (Kurathong et al, 1987;Wattanayingcharoenchai et al, 2011), further studies of OV infection in urban areas are needed. The findings of the present study were expected to be useful for planning OV infection control in the urban area chosen for this study.…”

Section: Prevalence and Risk Factors For Infection By Opisthorchis Viverrini In An Urban Area Of Mahasarakham Province Northeast Thailandmentioning

confidence: 99%

Prevalence and Risk Factors for Infection by Opisthorchis viverrini in an Urban Area of Mahasarakham Province, Northeast Thailand

Chaiputcha

Promthet²,

Bradshaw³

2015

Asian Pacific Journal of Cancer Prevention

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The aim of this cross-sectional analytic study was to investigate the prevalence and risk factors for Opisthorchis viverrini (OV) infection in an urban area of Northeastern Thailand. The participants were 254 household representatives aged 15 years or older living in the most urbanised part of Chiang Yuen municipality in Mahasarakham Province. All participants provided stool samples which were examined using the modified Kato-Katz procedure, and a structured interview questionnaire was used to collection demographic information, knowledge about OV infection, and the consumption of unsafely prepared freshwater fish. The data were analyzed using descriptive statistics and logistic regression. The overall prevalence of OV infection was 15.0%, and in the multivariate analysis male gender was found to be significantly and positively associated with OV infection (OR adj =9.75, 95%CI: 34.03-23.58) while education to secondary school level or above was a significant protective factor (OR adj =0.30, 95%CI: 0.12-0.74). The eating of unsafely prepared fish and knowledge about OV were not significantly related to infection status. The findings were discussed in terms of issues for future research, especially the need to consider the possibility of higher rates of OV infection in urban areas than might be expected and to investigate the sources of infected fish products which may well be different from those in rural villages.

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Section: Prevalence and Risk Factors For Infection By Opisthorchis Viverrini In An Urban Area Of Mahasarakham Province Northeast Thailandmentioning

confidence: 99%

Prevalence and Risk Factors for Infection by Opisthorchis viverrini in an Urban Area of Mahasarakham Province, Northeast Thailand

Chaiputcha

Promthet²,

Bradshaw³

2015

Asian Pacific Journal of Cancer Prevention

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“…It has also been shown that the prevalence and intensity of infection are greater among rural dwellers than their urban counterparts, an observation strongly associated with the habit and frequency of eating "Koi pla" [24] . This tradition …”

Section: Report Of Cases Of Opisthorchiasis By Provincementioning

confidence: 99%

“…344 (79.4%) of 433 rural dwellers were infected compared with only 69 (54.8%) of 126 urban dwellers. Infection due to O. viverrini appears to be mainly a rural problem strongly associated with the habit and frequency of eating koi-pla [24] . Tesana et al reported the prevalence of O. viverrini infection in the villages on the banks of rivers and those far from the rivers in Loei and Nong Khai Provinces, northeast Thailand.…”

Section: Thailandmentioning

confidence: 99%

Opisthorchiasis in Thailand: Review and current status

Kaewpitoon¹,

Kaewpitoon²,

Pengsaa³

2008

WJG

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Opisthorchiasis caused by Opisthorchis viverrini (O. viverrini ) remains a major public health problem in many parts of Southeast Asia including Thailand, Lao PDR, Vietnam and Cambodia. The infection is associated with a number of hepatobiliary diseases, including cholangitis, obstructive jaundice, hepatomegaly, cholecystitis, cholelithiasis and cholangiocarcinoma. The liver fluke infection was induced by eating raw or uncooked fish products that is the tradition and popular in the northeastern and northern region, particularly in rural areas of Thailand. Health education programs to prevent and control opisthorchiasis are still required in high-risk areas.

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“…Fish–eating ( = piscivorous) mammals, including humans, dogs and cats, act as definitive hosts, in which sexual reproduction occurs. Clonorchiasis and opisthorchiasis are prevalent in geographical regions where raw cyprinid fish ( C. sinensis and O. viverrini ) and/or shrimp ( C. sinensis ) are a staple of the diet of humans [2], [12]. Both parasites establish in the bile ducts of the liver as well as extrahepatic ducts and the gall bladder of the mammalian (definitive) host.…”

Section: Introductionmentioning

confidence: 99%

Unlocking the Transcriptomes of Two Carcinogenic Parasites, Clonorchis sinensis and Opisthorchis viverrini

et al. 2010

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The two parasitic trematodes, Clonorchis sinensis and Opisthorchis viverrini, have a major impact on the health of tens of millions of humans throughout Asia. The greatest impact is through the malignant cancer ( = cholangiocarcinoma) that these parasites induce in chronically infected people. Therefore, both C. sinensis and O. viverrini have been classified by the World Health Organization (WHO) as Group 1 carcinogens. Despite their impact, little is known about these parasites and their interplay with the host at the molecular level. Recent advances in genomics and bioinformatics provide unique opportunities to gain improved insights into the biology of parasites as well as their relationships with their hosts at the molecular level. The present study elucidates the transcriptomes of C. sinensis and O. viverrini using a platform based on next-generation (high throughput) sequencing and advanced in silico analyses. From 500,000 sequences, >50,000 sequences were assembled for each species and categorized as biologically relevant based on homology searches, gene ontology and/or pathway mapping. The results of the present study could assist in defining molecules that are essential for the development, reproduction and survival of liver flukes and/or that are linked to the development of cholangiocarcinoma. This study also lays a foundation for future genomic and proteomic research of C. sinensis and O. viverrini and the cancers that they are known to induce, as well as novel intervention strategies.

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Opisthorchis viverrini infection in rural and urban communities in northeast Thailand

Cited by 24 publications

References 3 publications

Prevalence and Risk Factors for Infection by Opisthorchis viverrini in an Urban Area of Mahasarakham Province, Northeast Thailand

Prevalence and Risk Factors for Infection by Opisthorchis viverrini in an Urban Area of Mahasarakham Province, Northeast Thailand

Opisthorchiasis in Thailand: Review and current status

Unlocking the Transcriptomes of Two Carcinogenic Parasites, Clonorchis sinensis and Opisthorchis viverrini

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