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http://dx.doi.org/10.7314/APJCP.2012.13.1.087

Ultrasonography as a Tool for Monitoring the Development and Progression of Cholangiocarcinoma in Opisthorchis viverrini/Dimethylnitrosamine-Induced Hamsters  

Plengsuriyakarn, Tullayakorn (Thailand Center of Excellence in Drug Discovery and Development (TCEDDD), Thammasat University)
Eursitthichai, Veerachai (Thailand Center of Excellence in Drug Discovery and Development (TCEDDD), Thammasat University)
Labbunruang, Nipawan (Thailand Center of Excellence in Drug Discovery and Development (TCEDDD), Thammasat University)
Na-Bangchang, Kesara (Thailand Center of Excellence in Drug Discovery and Development (TCEDDD), Thammasat University)
Tesana, Smarn (Department of Parasitology, Faculty of Medicine, Khon Kaen University)
Aumarm, Waraporn (Department of Companion Animals Clinical Sciences, Faculty of Veterinary Medicine, Kasetsart University)
Pongpradit, Ananya (Department of Companion Animals Clinical Sciences, Faculty of Veterinary Medicine, Kasetsart University)
Viyanant, Vithoon (Thailand Center of Excellence in Drug Discovery and Development (TCEDDD), Thammasat University)
Publication Information
Asian Pacific Journal of Cancer Prevention / v.13, no.1, 2012 , pp. 87-90 More about this Journal
Abstract
Cholangiocarcinoma (CCA) is the most common cancer in northeastern Thailand. At present, effective diagnosis of CCA either in humans or animals is not available. Monitoring the development and progression of CCA in animal models is essential for research and development of new promising chemotherapeutics. Ultrasonography has been widely used for screening of bile duct obstruction in CCA patients. In this study, we preliminarily investigated the applicability of ultrasonography to monitor the development and progression of CCA in Syrian golden hamsters (n=8) induced by Opisthorchis viverrini (OV)/dimethylnitrosamine (DMN) administration. Ultrasonography and histopathological examination of hamsters was performed at week 0, 20, 24 and 28 of OV infection or at the start of water/Tween-80 administration to controls. The ultrasonographic images of liver parenchyma and gallbladders of OV/DMN-induced CCA hamsters showed sediments in gallbladder, thickening of gallbladder wall, and hypoechogenicity of liver parenchyma cells. The ultrasonographic images of liver tissues were found to correlate well with histopathological examination. Although ultrasonography does not directly detect the occurrence of CCA, it reflects the thickening of bile ducts and abnormality of liver tissues. It may be applied as a reliable tool for monitoring the development and progression of CCA in animal models in research and development of new promising chemotherapeutics for CCA.
Keywords
Cholangiocarcinoma; ultrasonography; diagnosis; hamster; Opisthorchis viverrini; dimethylnitrosamine;
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