PMID- 17135673 OWN - NLM STAT- MEDLINE DCOM- 20070116 LR - 20240109 IS - 0032-5791 (Print) IS - 0032-5791 (Linking) VI - 85 IP - 12 DP - 2006 Dec TI - Chinese herbal ingredients are effective immune stimulators for chickens infected with the Newcastle disease virus. PG - 2169-75 AB - This study was conducted to determine the efficacy of 4 Chinese herbal ingredients (CHI) as immune stimulators for an active vaccine in chickens using both in vitro and in vivo assays. The CHI used were Astragalus polysaccharide (APS), Isatis root polysaccharide (IRPS), Propolis polysaccharide, and Epimedium flavone at various concentrations. Two hundred 14-d-old male White Roman chickens were randomly divided into 10 groups. Chickens in groups 1 to 9 were inoculated with the New-castle disease virus (NDV) strain IV vaccine by intranasal and intraocular administration. Chickens in groups 1 to 8 were also administered subcutaneously on the dorsal region of the neck with 0.5 mL of the corresponding CHI at 2 doses: 29 and 58 mg/kg of BW for APS and IRPS and 7.25 and 14.5 mg/kg of BW for the others, once daily for 3 successive days. In group 9 (CHI-free control) and group 10 (both vaccine- and CHI-free control), chickens were injected with 0.5 mL of physiological saline. New-castle disease virus-specific serum hemagglutination inhibition antibody (Ab) production in immunized chickens was quantified using established methods. The results indicate that a majority of the CHI used at appropriate concentrations were effective in enhancing in vitro proliferation of chick embryo fibroblasts in response to the NDV infection. In vivo administration of CHI to vaccinated chickens (7.25 to 58 mg/kg of BW, depending on type) increased serum anti-NDV hemagglutination inhibition Ab titer concentrations, compared with the administration the NDV alone. For all CHI, a beneficial effect on the Ab production was observed on d 21 after the initiation of the vaccination. On the basis of the in vivo doses used, Propolis polysaccharide and Epimedium flavone were more potent than APS and IRPS in promoting the humoral immune response in the young birds (P < 0.05). Collectively, these findings suggest that appropriate doses of CHI can be used as novel, effective immune stimulators for chickens. FAU - Kong, X-F AU - Kong XF AD - Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu, P.R. China, 210095. FAU - Hu, Y-L AU - Hu YL FAU - Yin, Y-L AU - Yin YL FAU - Wu, G-Y AU - Wu GY FAU - Rui, R AU - Rui R FAU - Wang, D-Y AU - Wang DY FAU - Yang, C-B AU - Yang CB LA - eng PT - Controlled Clinical Trial PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Poult Sci JT - Poultry science JID - 0401150 RN - 0 (Drugs, Chinese Herbal) RN - 0 (Hemagglutinins) RN - 0 (Immunologic Factors) SB - IM MH - Animals MH - Cell Proliferation MH - Cells, Cultured MH - Chickens/*immunology/*virology MH - Dose-Response Relationship, Drug MH - Drugs, Chinese Herbal/*therapeutic use MH - Fibroblasts/cytology/drug effects MH - Hemagglutinins/blood MH - Immunologic Factors/*therapeutic use MH - Male MH - Newcastle Disease/*drug therapy/*immunology MH - Newcastle disease virus EDAT- 2006/12/01 09:00 MHDA- 2007/01/17 09:00 CRDT- 2006/12/01 09:00 PHST- 2006/12/01 09:00 [pubmed] PHST- 2007/01/17 09:00 [medline] PHST- 2006/12/01 09:00 [entrez] AID - S0032-5791(19)42488-7 [pii] AID - 10.1093/ps/85.12.2169 [doi] PST - ppublish SO - Poult Sci. 2006 Dec;85(12):2169-75. doi: 10.1093/ps/85.12.2169.