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Song, Su-Min,Shin, Jong-Won,de Guzman, Jefferson V.,Kim, Jin,Yu, Hak-Sun,Jha, Bijay Kumar,Kong, Hyun-Hee,Hong, Yeonchul,Chung, Dong-Il Elsevier 2010 Experimental parasitology Vol.125 No.2
<P><B>Abstract</B></P><P><I>Paragonimus westermani</I> is a trematode parasite that causes inflammatory lung disease as well as systemic infections in carnivorous mammals. The interaction of the parasite with host cells and paired worms is initiated by adhesion and plays an important role in parasite proliferation and differentiation. In this study, we isolated a cDNA encoding a <I>P. westermani</I> fasciclin I domain-containing protein (Pwfas-I). The fasiclin-I domain is suggested to be involved in cell adhesion, migration, and differentiation. Immunohistochemical analysis of <I>P. westermani</I> adult worms with polyclonal anti-Pwfas-I serum revealed immunoreactivity in the egg shells and the cells lining the sub-tegumental layer of adult worm throughout the contact regions of the cyst wall and paired worms. Using cell adhesion and spreading assays, we showed that Pwfas-I supports cell adhesion and spreading. Furthermore, we determined that the ανβ5 integrin was a functional receptor for the Pwfas-I. Taken together, these results suggest that Pwfas-I may be functional for the modulation of cell adhesion via binding with ανβ5 integrin in the extracellular matrix of <I>Paragonimus</I>.</P>
Geometric Optimization of a Mathematical Model of Radiofrequency Ablation in Hepatic Carcinoma
Wang, Kai-Feng,Pan, Wei,Wang, Fei,Wang, Gao-Feng,Madhava, Pai,Pan, Hong-Ming,Kong, De-Xing,Liu, Xiang-Guan Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.10
Radio frequency ablation (RFA) is an effective means of achieving local control of liver cancer. It is a particularly suitable mode of therapy for small and favorably located tumors. However, local progression rates are substantially higher for large tumors (>3.0 cm). In the current study, we report on a mathematical model based on geometric optimization to treat large liver tumors. A database of mathematical models relevant to the configuration of liver cancer was also established. The specific placement of electrodes and the frequency of ablation were also optimized. In addition, three types of liver cancer lesion were simulated by computer guidance incorporating mathematical models. This approach can be expected to provide a more effective and rationale mechanism for employing RFA in the therapy of hepatic carcinoma.