کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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5804973 | 1555714 | 2012 | 6 صفحه PDF | دانلود رایگان |

We evaluated the humoral and cellular immune responses in pigs immunized intranasally with crude rhoptry proteins of Toxoplasma gondii plus Quil-A. The experiment used 13 mixed-breed pigs divided into the following three groups: G1 (vaccinated-challenged, n = 6), which received the rhoptry vaccine (200 (g/dose); G2 (adjuvant-challenged, n = 4), which received PBS plus Quil-A; and G3 (unvaccinated-challenged, n = 3), which was the control group. The treatments were performed intranasally at days 0, 21, and 42. Three pigs from G1 produced IgG and IgM antibody levels above the cut-off in the ELISA on the challenge day. Partial protection was observed in G1 at the chronic phase of infection when compared with G3. The preventable fractions were 41.6% and 6.5%, in G1 and G2, respectively. The results of this study suggest that rhoptry proteins plus Quil-A stimulated humoral, local, and systemic immune responses, which were able to partially protect the brain from cyst formation.
Journal: Veterinary Parasitology - Volume 186, Issues 3â4, 25 May 2012, Pages 216-221