Differential circulating miRNA profiles identified miR-423-5p, miR-93-5p, and miR-4532 as potential biomarkers for cholangiocarcinoma diagnosis.

Background: Cholangiocarcinoma (CCA) is high in morbidity and mortality rates which may be due to asymptomatic and effective diagnostic methods not available. Therefore, an effective diagnosis is urgently needed.

Methods: Investigation of plasma circulating miRNA (cir-miRNA) was divided into two phases, including the discovery phase (pooled 10 samples each from three pools in each group) and the validation phase (17, 16, and 35 subjects of healthy control (HC), (OV), and CCA groups, respectively).

Investigation of Plasma Cell-Free DNA and MiRNA in Cholangiocarcinoma and Opisthorchiasis Viverrini Patients.

Objectives: This study aimed to assess the diagnostic potential of cell-free DNA (cfDNA) and cell-free miRNA (cf-miRNA) for distinguishing between Healthy, asymptomatic opisthorchiasis viverrini and cholangiocarcinoma in a preliminary manner.

Methods: In this study, 36 participants were enrolled into three health status groups: a healthy control group (HC), Opisthorchis viverrini-infected group (OV), and a cholangiocarcinoma group (CCA), each comprising 12 participants. Concentration measurements of cfDNA and cf-miRNA from plasma were conducted.

Update on the risk factors for opisthorchiasis and cholangiocarcinoma in Thailand.

This study aimed to identify the recent risk factors for Opisthorchis viverrini infection and cholangiocarcinoma (CCA) to improve disease prevention. The participants were divided into the following 3 groups based on their health status: healthy control (nonOV and nonCCA), those with O. viverrini infection (OV), and those with CCA.

Differential plasma proteomes of the patients with and cholangiocarcinoma identify a polymeric immunoglobulin receptor as a potential biomarker.

In Southeast Asian countries, nitrosamine compounds and the liver fluke have long been identified as carcinogens for cholangiocarcinoma (CHCA). In order to effectively treat infections and prevent the development of CHCA, methods for disease detection are needed. This study aims to identify biomarkers for infection and CHCA.

Susceptibility patterns of Bithynia siamensis siamensis and Bithynia funiculata to Opisthorchis viverrini infection: an indication of the risk of opisthorchiasis transmission in non-endemic areas.

Among the snail species acting as hosts for medically significant trematodes, only three taxa of Bithynia are responsible for transmitting the carcinogenic liver fluke Opisthorchis viverrini to humans in different geographical areas. Although B. siamensis goniomphalos is the primary species responsible for O.

Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit beta as a potential biomarker for infection and cholangiocarcinoma.

The human liver fluke Opisthorchis viverrini (Ov), the primary risk factor for cholangiocarcinoma (CHCA), is a parasite endemic to southeast Asian countries. With no effective treatments for CHCA currently available, early diagnosis and treatment of Ov infection remains the only practical method for the prevention of CHCA. In this study, plasma phosphoproteomes of patients in the non-Ov infection, non-cholangiocarcinoma subject group (non-OVCCA), the asymptomatic Ov infected group (OV), and the CHCA group (CCA), were investigated to identify potential biomarkers for Ov infection and CHCA.

Plasma checkpoint protein 1 (Chk1) as a potential diagnostic biomarker for opisthorchiasis and cholangiocarcinoma.

Background: Patients infected with a parasite often develop opisthorchiasis viverrini, which often progresses into cholangiocarcinoma (CCA) due to the asymptomatic nature of the infection. Currently, there are no effective diagnostic methods for opisthorchiasis or cholangiocarcinoma.

Objective: The aim of this study was to identify the host-responsive protein that can be developed as a diagnostic biomarker of opisthorchiasis and cholangiocarcinoma.

Influence of Water Irrigation Schemes and Seasonality on Transmission Dynamics of in the Snail Intermediate Host, in Rice Paddy Fields in Northeast Thailand.

is a fish-borne zoonotic trematode that causes significant public health problems in Southeast Asia. Its life cycle requires snails as the first intermediate hosts, fish, and human and/or carnivore hosts. This study assessed impacts of land use practice for rice cultivation and seasonality on the transmission dynamics of in in rice paddy field habitats.

A comprehensive review of omics and host-parasite interplays studies, towards control of Opisthorchis viverrini infection for prevention of cholangiocarcinoma.

Opisthorchis viverrini infection, opisthorchiasis, is a food-borne trematodiasis that is the main cause of cholangiocarcinoma, a bile duct cancer, in the Lower Mekong sub-region of Lao PDR, Cambodia, Vietnam, and Thailand. Despite extensive research on opisthorchiasis, the eradication of this disease has yet to be achieved. One of the major reasons for this failure is due to the multi-host life cycle of the parasite, which requires complex medical and public health interventions to eradicate.

Effects of aestivation on survival of Bithynia siamensis goniomphalos snails and the infection of Opisthorchis viverrini in the irrigation area of wet- and dry-season rice paddy.

The snail Bithynia siamensis goniomphalos acts as the first intermediate host of the human liver fluke, Opisthorchis viverrini, a major cause of cholangiocarcinoma in Northeast Thailand. In this study, we investigated host-parasite interactions in wet- and dry-season rice paddy plantation. The snails that aestivated through 4-month-dried period after rice harvest had average mortality rate of 36.

Evaluation of Opisthorchis viverrini calreticulin for potential host modulation.

The multifunctional calreticulin (CALR) was identified as a major calcium-binding protein of the endoplasmic reticulum before being recognized as a chaperone in the same place. Only later were activities of calreticulin outside the endoplasmic reticulum described that for example affect cell proliferation and the innate immune system. In the present work we have investigated those extracellular activities of CALR from the cancerogenic human liver fluke Opisthorchis viverrini (OvCALR), as they might be important in host/parasite interaction.

Taxonomy, Ecology and Population Genetics of Opisthorchis viverrini and Its Intermediate Hosts.

There have been considerable advances in our understanding of the systematics and ecology of Opisthorchis viverrini; however, this new knowledge has not only clarified but also complicated the situation. We now know that what was once considered to be a single species is, in fact, a species complex, with the individual species being confined to specific wetland areas. There is also a strong genetic association between the members of the O.

Comparative Characterization of Four Calcium-Binding EF Hand Proteins from .

Four isoforms of calcium binding proteins containing 2 EF hand motifs and a dynein light chain-like domain in the human liver fluke , namely OvCaBP1, 2, 3, and 4, were characterized. They had molecular weights of 22.7, 21.

Molecular and Biochemical Characterization of Opisthorchis viverrini Calreticulin.

Calreticulin (CALR), a multifunctional protein thoroughly researched in mammals, comprises N-, P-, and C-domain and has roles in calcium homeostasis, chaperoning, clearance of apoptotic cells, cell adhesion, and also angiogenesis. In this study, the spatial and temporal expression patterns of the Opisthorchis viverrini CALR gene were analyzed, and calcium-binding and chaperoning properties of recombinant O. viverrini CALR (OvCALR) investigated.

Opisthorchis viverrini infection in the snail and fish intermediate hosts in Central Vietnam.

Opisthorchis viverrini, a carcinogenic fish borne fluke, requires freshwater snails and fish as intermediate hosts. Opisthorchiasis is endemic in parts of Southeast Asia, including Central and South Vietnam. In this region the transmission by intermediate hosts has received little attention.

Effects of albendazole, artesunate, praziquantel and miltefosine, on Opisthorchis viverrini cercariae and mature metacercariae.

Objective: To explore larvicidal effects of anthelmintic drugs on Opisthorchis viverrini (O. viverrini) for alternative approach to interrupting its cycle for developing a field-based control program.

Methods: The larvicidal activities of albendazole (Al), artesunate (Ar), praziquantel (Pzq) and miltefosine (Mf) on O.

Differential Protein Expression in the Hemolymph of Bithynia siamensis goniomphalos Infected with Opisthorchis viverrini.

Bithynia siamensis goniomphalos is a freshwater snail that serves as the first intermediate host of the human liver fluke Opisthorchis viverrini. This parasite is a major public health problem in different countries throughout the Greater Mekong sub-region (Thailand, southern Vietnam, Lao PDR and Cambodia). Chronic O.

PREVLENCE AND RISK FACTORS FOR OPISTHORCHIS VIVERRINI INFECTION AMONG CATS AND DOGS IN SIX DISTRICTS SURROUNDING THE UBOLRATANA DAM, AN ENDEMIC AREA FOR HUMAN OPISTHORCHIASIS IN NORTHEASTERN THAILAND.

Opisthorchis viverrini is a zoonotic liver fluke that causes opisthorchiasis among humans in endemic areas, such as northeastern Thailand. The objective of this study was to determine the prevalence and risk factors for O. viverrini infection among cats and dogs in six districts surrounding Ubolratana Dam.

Infectivity and development of Opisthorchis viverrini metacercariae in immunosuppressed Barbonymus gonionotus fingerlings (Cyprinidae).

Opisthorchiasis caused by Opisthorchis viverrini infection, is a serious public health problem in Lao PDR, Cambodia, Vietnam and Thailand. Cyprinid fish are required for the transmission of O. viverrini metacercariae to fish eating-mammal hosts including humans.

Similarity of a 16.5kDa tegumental protein of the human liver fluke Opisthorchis viverrini to nematode cytoplasmic motility protein.

Opisthorchis viverrini is the causative agent of human opisthorchiasis in Thailand and long lasting infection with the parasite has been correlated with the development of cholangiocarcinoma. In this work we have molecularly characterized the first member of a protein family carrying two DM9 repeats in this parasite (OvDM9-1). InterPro and other protein family databases describe the DM9 repeat as a protein domain of unknown function that has been first noted in Drosophila melanogaster.

Comparison of infectivity, metacercarial burden and host mortality induced by Opisthorchis viverrini sensu lato cercariae from Lao PDR compared with Thailand in cyprinid fish, Barbonymus gonionotus.

Background: Previous studies indicate that Opisthorchis viverrini sensu lato (s.l.) is a species complex with strong associations to geographical regions, i.

TREMATODE INFECTION OF FRESHWATER SNAIL, FAMILY BITHYNIIDAE IN THAILAND.

Opisthorchis viverrini is restricted to and requires for its aquatic life cycle only Bithynia snail as first intermediate host but many species of cyprinid fish as second intermediate hosts. A survey in Thailand of trematode infection in freshwater snails of the family Bithyniidae carried out during October 2008 - July 2009 found a total of 5,492 snails, classified into ten species distributed in various geographic areas. Bithyniafuniculata and Gabbia pygmaea were localized to the north, B.

Data set from the proteomic analysis of Bithynia siamensis goniomphalos snails upon infection with the carcinogenic liver fluke Opisthorchis viverrini.

The snail Bithynia siamensis goniomphalos acts as the first intermediate host for the human liver fluke Opisthorchis viverrini, the major cause of cholangiocarcinoma (CCA) in Northeast Thailand. This data article contains the results obtained from the analysis of the proteins differentially expressed in the snail B. siamensis goniomphalos upon infection with O.