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排序方式： 共有1370条查询结果，搜索用时 31 毫秒
991.
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Enhancement of humoral immune response of Isospora felis-infected cats after inoculation with Toxoplasma gondii. 总被引：1，自引：0，他引：1
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S L Kaattari M J Irwin M A Yui R A Tripp J S Parkins 《Veterinary immunology and immunopathology》1986,12(1-4):29-38
Trinitrophenylated (TNP) forms of E. coli lipopolysaccharide (LPS) and keyhole limpet hemocyanin (KLH) were used to produce antigen specific plaque-forming cell (PFC) responses with rainbow trout (Salmo gairdneri) splenocytes from unprimed fish in vitro. The culture system that was developed is described and characterized with respect to the kinetics and dose responses for both the haptenated and unhaptenated forms of the carriers. The induction of the PFC response to TNP-LPS was inhibited with TNP-lysine. Exposure to graded levels of gamma-radiation demonstrated a low dose augmentation of the PFC response with both antigens. Antigen addition experiments reveal that both antigens appear to stimulate the same population of antibody-producing B lymphocytes. 相似文献
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N Suzuki H Sakurai A Saito I Igarashi Y Omata H Osaki 《Nippon juigaku zasshi. The Japanese journal of veterinary science》1990,52(5):907-914
Tachyzoites of Toxoplasma gondii were killed in mouse macrophage and human somatic cell monolayers by a novel synthetic peptide (Obiopeptide-1) which is a Glycil-penta-Glutaminate (GpG) derivative of native Obioactin. In view of the worldwide prevalence of this protozoan disease and the lack of effective treatments, Obiopeptide-1 may be a new and unique antimicrobial active substance of non-antibiotic chemotherapeutic agents for intracellular parasites, T. gondii and associated nonspecific hypoimmune responses that occur in infected hosts. 相似文献
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Fujimoto W Kimura K Suzuki M Syuto B Onuma M Iwanaga T 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2004,66(3):291-294
Bovine gut chitinase is exclusively produced in the liver and secreted into the blood. In the present study, we established a semi-quantitative method by Western blot analysis for measurement of the chitinase content in blood and examined its alteration during postnatal development and experimental infection with hemoprotozoan parasite in cattle. Its serum levels from 1 week to 1 year of age showed a significant increase only in 3-4-month-old group. The plasma concentration of the gut chitinase was not changed during acute inflammation caused by lipopolysaccharide but increased gradually after a Theileria injection and peaked at 52 days post-infection. It appears that the increase in the blood chitinase levels might be a defensive response in cattle against protozoan infection. 相似文献