منابع مشابه
Infection-immunity in tularemia: specificity of cellular immunity.
The relationship between hypersensitivity and cellular resistance to infection with facultative intracellular parasites was studied in mice by using infection-immunity in tularemia as a model system. Delayed hypersensitivity to antigenic fractions of Francisella tularensis was first detected 6 to 7 days after immunization with viable F. tularensis vaccine, at which time immunity against challen...
متن کاملCellular Aspects of Immunity
was later verified principally by others. One may note his theories of the relationship of viruses to cancer as an example: Viruses may cause cancer by making cells unresponsive to normal control mechanisms, or possibly, by transducing abnormal genes from one cell to another or, perhaps, the so-called cancer viruses may actually be abnormal genetic material derived from the first host. The pref...
متن کاملCellular immunity to toxoplasma and besnoitia in hamsters: specificity and the effects of cortisol.
The inhibitory effects of cortisol on cellular immunity were studied in vitro by using hamster peritoneal exudate cells. Two obligate, intracellular protozoa--Toxoplasma gondii and Besnoitia jellisoni-- were used to control for specificity of effects. Results indicate that immune lymphocytes specifically confer immunity to (or "arm") macrophages that specifically express immunity. This arming c...
متن کاملExtract and leaf powder effect of Artemisia annua on performance, cellular and humoral immunity in broilers
The effects of methanolic extract and leaf powder of Artemisia annua were studied on performance, cellular and humoral immunity in 240 Cobb broiler chicks in a completely randomized design. Control group did not receive any treatment. The chicks in the second and third groups were fed with feed which contained 2000 and 4000 ppm plant extract in diet and in the groups 4, 5 and 6 chicks received ...
متن کاملSpecificity of Cellular Immune Responses
In vitro antigen stimulation of DNA synthesis in lymph node cultures from immunized guinea pigs can be obtained with very low (10(-4) microg/ml) antigen concentrations in the culture fluid. Immunization with low doses of DNP-GPA leads to a cell population capable of being stimulated, on the average, by low concentration of antigen whereas immunization with large antigen doses results in a sensi...
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ژورنال
عنوان ژورنال: Nippon Saikingaku Zasshi
سال: 1966
ISSN: 1882-4110,0021-4930
DOI: 10.3412/jsb.21.151