Results 21 to 30 of about 890,128 (333)

New Aspect of Immune System: Innate Immunity and Acquired Immunity

open access: bronzeJournal of the Japanese Association for Infectious Diseases, 2006
Recently, it has been turned out that our internal defense system is composed of two distinct components; innate/natural immune system and acquired/adaptive immune system. The former innate immunity is principally located at the surface area such as skin and mucosal compartment, while the latter acquired immunity is observed mainly in the circulating ...
Hidemi Takahashi
openalex   +5 more sources

Opiates, immune system, acquired immunodeficiency syndrome, and nonhuman primate model [PDF]

open access: greenJournal of Neurovirology, 2008
Both human immunodeficiency virus (HIV) and illicit drug addiction remain major health problems not only in the United States but all over globe. The effect of drug addiction on HIV/AIDS (acquired immunodeficiency syndrome) has been somewhat underexplored.
Richard J. Noel   +3 more
openalex   +4 more sources

Role of NPR1 in Systemic Acquired Stomatal Immunity

open access: yesPlants, 2023
Stomatal immunity is the primary gate of the plant pathogen defense system. Non-expressor of Pathogenesis Related 1 (NPR1) is the salicylic acid (SA) receptor, which is critical for stomatal defense. SA induces stomatal closure, but the specific role of NPR1 in guard cells and its contribution to systemic acquired resistance (SAR) remain largely ...
Qijie Guan   +7 more
openaire   +3 more sources

The role of HLA genotypes in understanding the pathogenesis of severe COVID-19

open access: yesEgyptian Journal of Medical Human Genetics, 2023
The coronavirus disease 2019 (COVID-19) pandemic has caused human tragedy through the global spread of the viral pathogen SARS-CoV-2. Although the underlying factors for the severity of COVID-19 in different people are still unknown, several gene ...
Fatemeh Arab   +4 more
doaj   +1 more source

The role of the acquired immune response in systemic sclerosis [PDF]

open access: yesSeminars in Immunopathology, 2015
Profound alterations characterize the adaptive immune response in systemic sclerosis, and several layers of evidence support a prominent role exerted by immune cellular effectors and humoral mediators in the pathogenesis of this disease. These include (i) the presence of oligoclonal T cells in tissues undergoing fibrosis consistent with (auto)antigen ...
Chizzolini, Carlo, Boin, Francesco
openaire   +5 more sources

Variation in the innate and acquired arms of the immune system among five shorebird species [PDF]

open access: greenJournal of Experimental Biology, 2006
SUMMARYTo contribute to an understanding of the evolutionary processes that shape variation in immune responses, we compared several components of the innate and acquired arms of the immune system in five related, but ecologically diverse, migratory shorebirds (ruff Philomachus pugnax L., ruddy turnstone Arenaria interpres L., bar-tailed godwit Limosa ...
Luísa Mendes   +4 more
openalex   +7 more sources

Study on hypoxia-inducible factor and its roles in immune system

open access: yesImmunological Medicine, 2021
The Hypoxia-Inducible Factor-1 (HIF-1) is a dimeric protein complex that plays a significant role in responding to low oxygen or hypoxia concentrations.
Ali Asghar Kiani   +5 more
doaj   +1 more source

INFECTION-ACQUIRED VERSUS VACCINE-INDUCED IMMUNITY AGAINST COVID-19

open access: yesCentral Asian Journal of Medical Hypotheses and Ethics, 2021
The course of COVID-19 depends on a dynamic interplay between SARS-CoV-2 and the host's immune system. Although it is an emerging global health issue, little is known about the specificity, safety, and duration of the immunity elicited by the virus. This
Tsvetelina Velikova
doaj   +1 more source

Innate and acquired plasticity of the intestinal immune system. [PDF]

open access: greenCellular and Molecular Life Sciences, 2005
non ...
Arnaud M. Didierlaurent   +2 more
openalex   +7 more sources

Paleo-immunology: evidence consistent with insertion of a primordial herpes virus-like element in the origins of acquired immunity. [PDF]

open access: yesPLoS ONE, 2009
BACKGROUND:The RAG encoded proteins, RAG-1 and RAG-2 regulate site-specific recombination events in somatic immune B- and T-lymphocytes to generate the acquired immune repertoire.
David H Dreyfus
doaj   +1 more source

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