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  • Title: Comparison of global transcriptional responses to primary and secondary Eimeria acervulina infections in chickens.
    Author: Kim CH, Lillehoj HS, Hong YH, Keeler CL, Lillehoj EP.
    Journal: Dev Comp Immunol; 2010 Mar; 34(3):344-51. PubMed ID: 19941894.
    Abstract:
    In the current study, we compared chicken gene transcriptional profiles following primary and secondary infections with Eimeria acervulina using a 9.6K avian intestinal intraepithelial lymphocyte cDNA microarray (AVIELA). Gene Ontology analysis showed that primary infection significantly modulated the levels of mRNAs for genes involved in the metabolism of lipids and carbohydrates as well as those for innate immune-related genes. By contrast, secondary infection increased the levels of transcripts encoded by genes related to humoral immunity and reduced the levels of transcripts for the innate immune-related genes. Because the observed modulation in transcript levels for gene related to energy metabolism and immunity occurred concurrent with the clinical signs of coccidiosis, these results suggest that altered expression of a specific set of host genes induced by Eimeria infection may be responsible, in part, for the observed reduction in body weight gain and inflammatory gut damage that characterizes avian coccidiosis.
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