Astragalus polysaccharide and oxymatrine can synergistically improve the immune efficacy of Newcastle disease vaccine in chicken.
Three hundred and sixty 14-day-old chickens were divided into seven groups. The chickens, except for blank control group, were vaccinated with Newcastle disease vaccine, repeated at 28 days old. At the same time of the first vaccination, the chickens in three astragalus polysaccharide-oxymatrine (AP-OM) groups were orally administrated respectively with the mixture of AP-OM at high, medium and low concentrations, in astragalus polysaccharide (AP) group and oxymatrine (OM) group, with corresponding medicine, in non-medicine (NM) control group, with equal volume of physiological saline, once a day for 3 successive days. On 14, 21, 28, 35 and 42 days after the first vaccination, the changes of peripheral lymphocyte proliferation and serum antibody titers of the chickens were determined by MTT method and hemagglutination inhibition test. On 14, 28 and 42 days after the first vaccination, the serum IL-2 concentration was determined by Enzyme-linked Immunosorbent Assay (ELISA). The results showed that at most time points, the lymphocyte proliferation, antibody titers and IL-2 concentrations of 5 medicine-administrating groups were significantly higher than that of corresponding NM group. At some time points, the lymphocyte proliferation, antibody titers and IL-2 concentrations in high and medium doses of AP-OM groups were significantly or numberly higher than those in AP group and OM group. It indicated that AP-OM could significantly improve the immune efficacy of Newcastle disease vaccine, astragalus polysaccharide and oxymatrine possessed synergistical immunoenhancement.
Institute of Traditional Chinese Veterinary Medicine, Nanjing Agricultural University, PR China.
Yuku
Y
Chen
Deyun
D
Wang
Yuanliang
Y
Hu
Zhenhuan
Z
Guo
Junmin
J
Wang
Xiaona
X
Zhao
Yunpeng
Y
Fan
Liwei
L
Guo
Shujuan
S
Yang
Fuding
F
Sai
Yujuan
Y
Xing
D000470:Alkaloids / Q000276:immunology / Q000494:pharmacology*; D000818:Animals; D000906:Antibodies / Q000097:blood; D027883:Astragalus Plant / Q000737:chemistry*; D049109:Cell Proliferation / Q000187:drug effects; D002645:Chickens; D004357:Drug Synergism; D004365:Drugs, Chinese Herbal / Q000494:pharmacology; D007155:Immunologic Factors / Q000276:immunology / Q000494:pharmacology*; D007376:Interleukin-2 / Q000097:blood; D008214:Lymphocytes / Q000166:cytology / Q000187:drug effects / Q000276:immunology; D008297:Male; D009522:Newcastle disease virus / Q000276:immunology*; D011134:Polysaccharides / Q000276:immunology / Q000494:pharmacology*; D011807:Quinolizines / Q000276:immunology / Q000494:pharmacology*; D014765:Viral Vaccines / Q000276:immunology*; D000093842:Matrines
D000470:Alkaloids; D000906:Antibodies; D004365:Drugs, Chinese Herbal; D007155:Immunologic Factors; D007376:Interleukin-2; D011134:Polysaccharides; D011807:Quinolizines; D014765:Viral Vaccines; C037573:oxymatrine; D000093842:Matrines