Results 51 to 60 of about 1,239,345 (193)

Nomenclature on Immune‐Mediated Drug Reactions: An EAACI Position Paper

open access: yesAllergy, EarlyView.
ABSTRACT Over the past several decades, there have been significant advances in our understanding of both immunological and pharmacological mechanisms of adverse drug reactions (ADRs). Immune‐mediated drug reactions (IMDRs) represent a small proportion of ADRs and are caused by a pathological activation of the immune system or inflammatory pathways ...
Maria J. Torres   +19 more
wiley   +1 more source

Studies on the role of inflammation and stem cells in cardiac ischaemic injury [PDF]

open access: yes, 2008
The regenerative capacity of human myocardium is unable to compensate adequately forth significant loss of heart muscle that occurs in acute myocardial infarction (Ml).
Ahmed, Ishtiaq M., Ahmed, Ishtiaq M
core  

Responses of isolated pulmonary arteries to the C5a anaphylatoxin

open access: yes, 1990
The anaphylatoxin C5a possesses spasmogenic activity in smooth muscle tissues. In this study, we examined the effect of C5a on isolated rabbit pulmonary artery (PA) ring segments under a variety of experimental conditions.
D. E. Van Epps   +2 more
core   +1 more source

Antagonism of the prostaglandin D2 receptor CRTH2 attenuates asthma pathology in mouse eosinophilic airway inflammation

open access: yesRespiratory Research, 2007
Background Mast cell-derived prostaglandin D2 (PGD2), may contribute to eosinophilic inflammation and mucus production in allergic asthma. Chemoattractant receptor homologous molecule expressed on TH2 cells (CRTH2), a high affinity receptor for ...
Högberg Thomas   +8 more
doaj   +1 more source

Complement receptor C3aR marks heterogeneous tumor‐associated macrophage states associated with improved survival in IDH‐wildtype glioblastoma

open access: yesBrain Pathology, EarlyView.
C3aR expression in IDH‐wildtype glioblastoma is predominantly associated with the myeloid/macrophage compartment and heterogeneous macrophage states. C3aR‐high tumors are enriched among MGMT promoter‐methylated tumors and show improved overall survival, although the prognostic association requires independent validation.
Marion Imara   +9 more
wiley   +1 more source

Anaphylatoxin C5a-induced toll-like receptor 4 signaling in bovine neutrophils

open access: yes, 2011
It is well known that signaling in neutrophils through both the complement component 5a (C5a) and C5a receptor (C5aR) and the toll-like receptor 4 (TLR4) pathways plays an essential role in innate defense. Neutrophil dysfunction, as seen during sepsis in
Burvenich, Christian Paul G.   +17 more
core   +1 more source

Emerging role of C5aR2: novel insights into the regulation of uterine immune cells during pregnancy

open access: yesFrontiers in Immunology
Pregnancy is a fascinating immunological phenomenon because it allows allogeneic fetal and placental tissues to survive inside the mother. As a component of innate immunity with high inflammatory potential, the complement system must be tightly regulated
Fenna Froehlich   +7 more
doaj   +1 more source

Acute anaphylactic and multiorgan inflammatory effects of Comirnaty in pigs: evidence of spike protein mRNA transfection and paralleling inflammatory cytokine upregulation

open access: yesBritish Journal of Pharmacology, EarlyView.
Abstract Background and Purpose Rare but severe adverse events (AEs) associated with mRNA‐lipid nanoparticle (LNP) COVID‐19 vaccines, such as Comirnaty, include anaphylaxis and inflammatory organ disorders, but their underlying mechanisms are poorly understood. We aimed to develop an animal model to study these phenomena.
László Dézsi   +13 more
wiley   +1 more source

Identification of the Major Phosphorylation Sites in Human C5a Anaphylatoxin Receptor in Vivo [PDF]

open access: yesJournal of Biological Chemistry, 1995
Interaction of human C5a anaphylatoxin with cell surface receptors mediates cell activation and receptor desensitization. Treatment of differentiated HL60 cells or transiently transfected COS-7 cells with C5a or phorbol 12-myristate 12-acetate (PMA) results in rapid hyperphosphorylation of the C5aR.
E, Giannini, L, Brouchon, F, Boulay
openaire   +2 more sources

Inflammatory and Immunological Basis of Periodontal Diseases

open access: yesJournal of Periodontal Research, EarlyView.
The periodontal lesion emerges as an evolving immunological battlefield, where host–microbiome interactions, dysregulated immune responses, fragile resolution mechanisms, and inflammophilic dysbiosis converge to shift the balance from homeostasis to unrestrained tissue destruction.
Giacomo Baima   +3 more
wiley   +1 more source

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