Journal
VACCINE
Volume 28, Issue 34, Pages 5614-5616Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.vaccine.2010.06.025
Keywords
Astragalus polysaccharides; Chicken; IBDV; Erythrocyte
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Funding
- Natural Science and scientific break-through Foundation of Shanxi province [20041093, 033021]
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160 Haline white chickens at 25 days old, negative for antibody to infectious bursa disease virus (IBDV), were randomly allocated into four groups. Chickens in groups 2-4 were infected with 0.3 ml IBDV at 26 days old. Chickens in groups 3 and 4 were injected respectively with 5 and 10 mg astragalus polysaccharide (APS) for 6 consecutive days from the first day of infection. At 21, 29, 32, 35 and 38 days old, the blood samples were taken from heart, and erythrocyte-C-3b receptor rosette rate (E-C3bRR), erythrocyte-C-3b immune complex rosette rate (E-ICRR), erythrocyte rosette forming enhancing rate (ERER) and erythrocyte rosette forming inhibitory rate (ERIR) were measured. The results showed that E-C3bRR and ERER significantly declined in chicken infected with IBDV (p<0.01); E-C3bRR, E-ICRR and ERER in groups 3 and 4 treated with APS were higher than that in groups 1 and 2 (p<0.01). the ERIR in groups 3 and 4 is similar to that in group 1. The results suggest that the immunological function of chicken erythrocytes declines after infected with IBDV and APS obviously enhances the immunological function of chicken erythrocytes. (C) 2010 Elsevier Ltd. All rights reserved.
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