نتایج جستجو برای: active immunity
تعداد نتایج: 520183 فیلتر نتایج به سال:
During aging, innate immunity progresses to a chronically active state. However, what distinguishes those that "age well" from those developing age-related neurological conditions is unclear. We used Drosophila to explore the cost of immunity in the aging brain. We show that mutations in intracellular negative regulators of the IMD/NF-κB pathway predisposed flies to toxic levels of antimicrobia...
Aim: Hepatitis B infection is one of the common diseases worldwide and the most prevalent communicable virus transferred by blood to the healthcare personnel. Active immunity, due to vaccination is the most effective way to prevent hepatitis B infection. The present study aimed at determining protective antibody titer against HBs antigen in Gonabad University of Medical Sciences students in Ira...
Background and Aim: Adenoids and tonsils are active lymphoid organs and playing an important role against invading antigens of upper aero digestive tract in children. The purpose of this study is observing the changes in cellular and humoral immunity of children six months after adenotonsillectomy. Materials and Methods: The study population consisted of 30 children (aged 4-10 years) with chron...
Poliomyelitis is a highly infectious viral disease which is mainly transmitted via contaminated food and drinking water by human feces, especially in situations of poor hygiene and sanitation (1). This disease is caused by 3 types of wild poliovirus (WPV) (types 1, 2 and 3), and immunity against one type does not create immunity against other types. In our country according National Immuni...
Specific T cell immunity in patients with active tuberculosis is associated with a decrease in multifunctionality. However, it is unknown whether cytokine profiles differ in patients with primary infection and those with prior contact. We therefore used intravesical immunotherapy with attenuated live Bacille Calmette-Guérin (BCG) in patients with urothelial carcinoma as a model to characterise ...
1. Intraperitoneal injections of killed and living broth cultures of a virulent pneumococcus produce in guinea pigs a high degree of active immunity and a serum with strong protective power. 2. Despite the protective power of such serum no agglutinins for the homologous organism and no precipitins for soluble derivatives were demonstrable. 3. Guinea pig immunity to pneumococcus infection produc...
The mouse-protective activity of Erysipelothrix rhusiopathiae culture supernatant fluids exists in a polydisperse form, ranging in density from aggregates which sediment at 10,000 x g for 3 hr to soluble units which will not sediment at 198,000 x g for 12 hr. A partially purified protective antigen has been isolated from the aggregates sedimented from a concentrate of the culture supernatant fl...
Malaria infection gives rise to host responses which are regulated by both the innate and adaptive immune system as well as by environmental factors. Acquired immunity is both speciesand stage-specific. It is rarely sterile, but rather associated with low-grade parasitemia and episodes of clinical disease throughout life [1, 2]. In endemic areas, children born to immune mothers are protected ag...
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