Opisthorchis

Opisthorchis

 [o″pis-thor´kis]
a genus of flukes parasitic in the liver and biliary tract of various birds and mammals, including humans; see opisthorchiasis. O. feli´neus is found from the Philippines, Japan, and Vietnam across Asia to Eastern Europe. O. viverri´ni is found in Southeast Asia.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

Opisthorchis

(ō'pis-thōr'kis),
Genus of digenetic trematodes (family Opisthorchiidae) found in the bile ducts or gallbladder of fish-eating mammals, birds, and fish.
[opistho- + G. orchis, testis]
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References in periodicals archive ?
Oxidative and nitrative stress in Opisthorchis viverrini-infected hamsters: an indirect effect after praziquantel treatment.
Among these trematodes is Opisthorchis viverrini, a liver fluke that can cause cholangiocarcinoma, a cancer of the bile ducts, in humans (Sripa et al.
After being thrashed by the quackbusters that a human liver fluke endemic to Southeast Asia could be causal in cancer cases, scientists from the Queensland Institute of Medical Research collaborating with George Washington University have found that another human liver fluke (Opisthorchis viverrini) contributes to the development of liver cancer by secreting granulin, a growth hormone that is known to cause uncontrolled cell growth.
Finally, other variables known to be associated with HCC risk (e.g., socioeconomic status, alcohol intake, smoking, excess weight, infection with Opisthorchis, and drug treatment) should be collected in the near future to delineate the degree of HCC risk in Laos more accurately.
Indeed, both species of liver flukes that most commonly infect humans (Opisthorchis viverrini and Clonorchis sinensis) have been declared Group 1 carcinogens by the World Health Organization and the International Agency for Research on Cancer [14, 15].
These cancers are rare in the United States; on the contrary, in Asia, particularly Thailand, infection with liver flukes of the genera Clonorchis and Opisthorchis is often associated with cholangiocarcinoma of the intrahepatic bile ducts [1-3].
Namwat et al., "Opisthorchis viverrini infection activates the PI3K/AKT/PTEN and Wnt/ [beta]-catenin signaling pathways in a Cholangiocarcinogenesis model," Asian Pacific Journal of Cancer Prevention, vol.
Potential risk factors of CCA are parasitic infections (Opisthorchis viverrini and Clonorchis sinensis), bile duct disorders (biliary tract cysts and hepatolithiasis), toxins, complications (diabetes, cirrhosis, and obesity), alcohol consumption, and smoking [1].
Opisthorchis felineus, an emerging infection in Italy and its implication for the European Union.
Sripa, "Rapid detection of Opisthorchis viverrini copro-DNA using loop-mediated isothermal amplification (LAMP)," Parasitology International, vol.
Parasites, such as Ascaris, liver fluke (including Clonorchis sinensis, and Opisthorchis viverrini), and Schistosoma, account for intrahepatic stone as well.