Impairment and Restoration of the Delayed Type Hypersensitivity in Germ-Free Mice
نویسندگان
چکیده
منابع مشابه
the investigation of the relationship between type a and type b personalities and quality of translation
چکیده ندارد.
THE EFFECT OF ASCORBIC ACID ON BLOOD HISTAMINE LEVEL AND DELAYED-TYPE HYPERSENSITIVITY IN GUINEA PIGS
The effect of ascorbic acid on blood histamine level and delayed-type hypersensitivity was studied in thirty male guinea pigs. Animals were sensitized to B.C.G., trichophytin and mallein during the first four weeks. The diet was ad libitum during this period. After this "sensitization period" animals w er e tested intradermally with tuberculin, trichophytin and mallein. The number and diam...
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The systemic injection of high doses of antigen into a preimmunized animal results in transient unresponsiveness of cell-mediated immune responses. This phenomenon is known as desensitization. Serum interleukin 2 (IL-2) activity was found transiently in desensitized mice at 3 h after the antigen challenge. These mice could not reveal antigen nonspecific delayed-type hypersensitivity (DTH) 1 d a...
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Delayed-type hypersensitive (DTH) response was evaluated in C3H/HeJ mice intestinally infected with Entamoeba histolytica. Infected and non-infected control mice were challenged with amoebic antigen on day 5, 10, 15, 20, 25, 30, 40, 50, and 60 post-infection. Maximum footpad swelling was observed after 24 hours of the challenge. The E. histolytica-infected mice exhibited a DTH response on day 5...
متن کاملstudy the effect of echinacea purpurea extract on cellular delayed type hypersensitivity and splenocyte proliferation in balb/c mice
objective: purple cone flower plant (echinacea purpurea) is one of the most important herbal products in many countries. up to now a lot of experiments demonstrated the controversial effects of this herb on immune system . in this research we study the in vivo and in vitro effect of iranian e.purpurea extract on cellular immunity. materials and methods: at first we determined the lethal dose of...
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ژورنال
عنوان ژورنال: Japanese Journal of Microbiology
سال: 1973
ISSN: 0021-5139
DOI: 10.1111/j.1348-0421.1973.tb00942.x