Journal Title
Title of Journal: Parasitol Res
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Abbravation: Parasitology Research
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Publisher
Springer-Verlag
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Authors: WenQiao Hui Bin Jia ZongSheng Zhao YingChun Du Hong Shen
Publish Date: 2011/12/02
Volume: 110, Issue: 5, Pages: 2075-2079
Abstract
The purpose of the present study was to investigate the dynamic changes of MHCDQB1 mRNA expression in sheep infected with Echinococosus granuclosus A total of 14 healthy Chinese merino sheep were experimentally infected with E granuclosus The blood samples were collected on days 0 initiation of the infection 7 21 30 and 60 postinfection respectively On day 60 postinfection when the experiment was terminated all sheep were euthanized to make a diagnosis of cystic echinococcosis CE using routine meat inspection and microscopical examination respectively The sheep were then divided into two groups according to the diagnostic results group A n = 8 consisted of sheep which were diagnosed as CE infection while group B n = 6 comprised sheep diagnosed as selfcured or healthy controls Blood samples obtained during the period of the study were correspondingly divided into groups A and B The mRNA expression levels of DQB1 revealed significant alterations detected at different stages of E granuclosus infection in the two groups Results showed that in group A DQB1 mRNA expression underwent a progressive increase from day 0 to day 21 postinfection P = 0073 and suddenly suffered from a dramatic drop until day 30 postinfection and then jumped rapidly and peaked on day 60 postinfection P = 0004 Meanwhile in group B DQB1 mRNA expression displayed a sharp increase from day 0 to day 7 postinfection P = 0000 which thereafter showed a marked decrease until day 30 postinfection and experienced a plateau from day 30 to day 60 postinfection remaining at or above that on day 0 It is concluded that DQB1 mRNA expression levels varied in different stages of E granuclosus infection in sheep In addition it appears that the ability to eliminate the parasites possibly depends at least in part on the DQB1 expression in the early stage of infection especially in the first week postinfection
Keywords:
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