Results 81 to 90 of about 27,277 (237)

Role for Complement C5 in Eosinophilic Inflammation of Severe Asthma

open access: yesAllergy, EarlyView.
Complement activation module, particularly C5, is positively associated with eosinophilic inflammation in severe asthma cohorts. Elevated C5 expression correlates with poor lung function improvement and persistent eosinophilic inflammation. Mouse model studies confirm that C5 exacerbates eosinophilic inflammation, highlighting its potential as a ...
Cong Dong   +217 more
wiley   +1 more source

Acidosis activates complement system in vitro

open access: yesMediators of Inflammation, 1998
We investigated the in vitro effect of different form s of acidosis (pH 7.0) on the formation of anaphylatoxins C3a and C5a. Metabolic acidosis due to addition of hydrochloric acid (10 μ mol/ml blood) or lactic acid (5.5 μ mol/ml) to heparin blood (N=12)
Michael Emeis   +5 more
doaj   +1 more source

Complement Hyperactivation Is Mediated by Alternative and Lectin Pathways During Early Phase of Severe Vaccination-Omicron BA.5 Infection. [PDF]

open access: yesJ Med Virol
ABSTRACT Complement temporal activation kinetics, activation pathways, and their relationship with thromboinflammation and antibody responses in severe vaccination‐COVID‐19 remains unclear. Based on a vaccinated‐infected cohort, we analyzed complement immune responses across mild to critical COVID‐19 cases by a dynamic model.
Cao J   +16 more
europepmc   +2 more sources

Deficiency of C3a receptor attenuates the development of diabetic nephropathy

open access: yesBMJ Open Diabetes Research & Care, 2019
Objective Diabetic nephropathy (DN) is the leading cause of chronic kidney disease and end-stage renal disease. Emerging evidence suggests that complement activation is involved in the pathogenesis of DN.
Xiao-Qian Li   +3 more
semanticscholar   +1 more source

IL‐33 Drives Inflammatory Changes and Extracellular Trap Formation in Eosinophils Involving Oxidised LDL and Complement Pathways

open access: yesAllergy, EarlyView.
IL‐33 induces inflammatory gene signatures in eosinophils, characterised by the upregulation of cell surface markers, inflammatory mediators and regulatory factors, all of which were also observed in nasal polyp‐derived eosinophils. Ox‐LDL and complement fragments (C3a and C5a) promote eosinophil adhesion and survival.
Emiko Matsuyama   +16 more
wiley   +1 more source

Complement C3a signaling facilitates skeletal muscle regeneration by regulating monocyte function and trafficking

open access: yesNature Communications, 2017
Regeneration of skeletal muscle following injury is accompanied by transient inflammation. Here we show that complement is activated in skeletal muscle injury and plays a key role during regeneration. Genetic ablation of complement C3 or its inactivation
Congcong Zhang   +7 more
semanticscholar   +1 more source

Comparison of Biocompatibility and Efficacy of Regional Citrate Anticoagulation and Unfractionated Heparin During Expanded Hemodialysis With a Medium Cut‐Off Membrane—A Randomized Trial

open access: yesArtificial Organs, EarlyView.
In a randomized cross‐over trial, regional citrate anticoagulation provided superior biocompatibility over full‐dose unfractionated heparin during expanded hemodialysis with significantly lower activation of complement, granulocytes, and platelets without affecting dialysis efficiency. ABSTRACT Background Regional citrate anticoagulation (RCA) improves
Marija Malgaj Vrečko   +7 more
wiley   +1 more source

Randomised, phase 1 evaluation of the safety, tolerability, pharmacokinetics and pharmacodynamics of iptacopan in healthy volunteers

open access: yesBritish Journal of Pharmacology, EarlyView.
Abstract Background and Purpose Overactivation of the alternative pathway (AP) underlies several diseases. Iptacopan is an oral, first‐in‐class, highly potent specific inhibitor of factor B, a key AP protease. Experimental Approach The analysis included data from two phase 1 randomised, volunteer‐blinded, placebo‐controlled studies: Study 1, a single ...
Irina Baltcheva   +5 more
wiley   +1 more source

The C3a/C3aR axis mediates anti-inflammatory activity and protects against uropathogenic E coli-induced kidney injury in mice.

open access: yesKidney International, 2019
Both the C3a/C3aR and C5a/C5aR1 axes are regarded as important pathways for inducing and regulating inflammatory responses. It is well documented that the C5a/C5aR1 axis is a potent inflammatory mediator in the pathogenesis of many clinic disorders ...
Kunyi Wu   +9 more
semanticscholar   +1 more source

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