نتایج جستجو برای: antigen 5
تعداد نتایج: 1387736 فیلتر نتایج به سال:
apoptosis, or active cell death, is a specific mode of cell death, which is characterized by morphological changes such as chromatin condensation, fragmentation of the nucleus, cytoplasmic retraction and appearance of apoptotic bodies' containing apparently intact organelles. apoptosis occurs in physiological conditions as a regulatory mechanism of tissue growth, where cell proliferation is bal...
chlamydia trachomatis is an obligate intracellular bacterium which causes a wide variety of human infections such as ocular, urogenital and respiratory infections. genital infections of women, espe-cially when repeated, give rise to many complications such as ectopic pregnancy, miscarriage and in fertility. since chlamydial infections are usually asymptomatic, they progress unnoticed and produc...
background: cystic echinococcosis (ce), also known as echinococcosis/hydatidosis, is one of the most important parasitic diseases in the world. it enhances both humoral and cellular (th1 and th2) responses in infected host. different antigens of the worm may favor the th1 or th2 immune responses in ce patients. objective: to evaluate the humoral and cellular immune responses of balb/c mice agai...
BACKGROUND Acute HIV infection (prior to antibody seroconversion) represents a high-risk window for HIV transmission. Development of a test to detect acute infection at the point-of-care is urgent. METHODS Volunteers enrolled in a prospective study of HIV incidence in four African cities, Kigali in Rwanda and Ndola, Kitwe and Lusaka in Zambia, were tested regularly for HIV by rapid antibody t...
The aim of this study was to prepare a new formula of Leishmania major (L. major) crude antigen and evaluate its effect on immune system. For this purpose L. major promastigotes were cultured, harvested, washed, and resuspended in physiologic saline and the suspensions were dispersed in five equal batches. 0.1 ml of various doses of the cocktail antigen were injected intradermaly in three group...
Hemagglutinating and complement-fixing antigens of La Crosse virus (California arbovirus group) were produced in serum-free suspension cultures of BHK-21/13S cells. The appearance and production of these antigens were correlated with the titer of infectious virus. No significant differences in antigen titers were produced by varying virus dose 10-fold. Hemagglutinin appeared 6 to 8 hr after ino...
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