نتایج جستجو برای: acquired immunity

تعداد نتایج: 256049  

Journal: :International journal for parasitology 2009
Thomas R Raffel Robert P LeGros Brenda C Love Jason R Rohr Peter J Hudson

Acquired immune memory in vertebrates influences transmission and persistence of infections, with consequences for parasite dynamics at both the individual and population levels. The potential impact of acquired immunity is of particular interest for salamanders, whose acquired immune systems are thought to be less effective than those of frogs and other tetrapods. One way to examine the import...

2009
Shizuo Akira

Mammalian immune response can be divided into innate and acquired immunity. Furthermore, much evidence has demonstrated that activation of innate immunity is a prerequisite to induction of acquired immunity. This paradigm shift has changed our thinking on the pathogenesis and treatment of infections, immune diseases, allergy, and cancers.

Journal: :Journal of applied physiology 2002
Albert Moraska Jay Campisi Kien T Nguyen Steven F Maier Linda R Watkins Monika Fleshner

Acute stressor exposure can facilitate innate immunity and suppress acquired immunity. The present study further characterized the potentiating effect of stress on innate immunity, interleukin-1beta (IL-1beta), and demonstrated that stress-induced potentiation of innate immunity may contribute to the stress-induced suppression of acquired immunity. The long-term effect of stress on IL-1beta was...

Journal: :Infection and immunity 2004
Michelle L Gatton Qin Cheng

Individuals living in regions where malaria is endemic develop an acquired immunity to malaria which enables them to remain asymptomatic while still carrying parasites. Field studies indicate that cumulative exposure to a variety of diverse Plasmodium parasites is required for the transition from symptomatic to asymptomatic malaria. This study used a simulation model of the within-host dynamics...

2015
Suzette M. Matthijsse Joost van Rosmalen Jan A. C. Hontelez Roel Bakker Inge M. C. M. de Kok Marjolein van Ballegooijen Sake J. de Vlas

BACKGROUND Knowledge of the natural history of human papillomavirus (HPV), in particular the role of immunity, is crucial in estimating the (cost-) effectiveness of HPV vaccination and cervical cancer screening strategies, because naturally acquired immunity after clearing an infection may already protect part of the risk population against new HPV infections. METHODS We used STDSIM, an estab...

2016
Alexander V. Georgiev Christopher W. Kuzawa Thomas W. McDade

BACKGROUND AND OBJECTIVES Life history theory predicts resource allocation trade-offs between competing functions and processes. We test the hypothesis that relative investment towards innate versus acquired immunity in humans is subject to such trade-offs and that three types of early developmental exposures are particularly salient in shaping adult immunophenotype: (i) pathogen exposure, (ii)...

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