Results 121 to 130 of about 24,276 (249)

In Xenopus oocytes the human C3a and C5a receptors elicit a promiscuous response to the anaphylatoxins [PDF]

open access: yes, 1996
The Xenopus laevis oocyte has been widely utilized for cloning and functional expression of G-protein coupled receptors (GPCR). This system was used for the functional expression and characterization of the recently identified human C3a receptor ...
Robert S Ames   +5 more
core   +1 more source

In Situ X‐Ray Diffraction Study of a Microwave‐Based Hydrothermal Synthesis of Mayenite Ca12Al14O33

open access: yesZeitschrift für anorganische und allgemeine Chemie, EarlyView.
Microwave‐assisted hydrothermal synthesis enables rapid transformation of aluminium‐ and calcium‐hydroxide into mayenite with high surface area. Optimised synthesis conditions comprise a microwave step at 80°C for 5 min followed by calcination at 800°C. The reactions during calcination were studied via in situ XRD measurements.
Nils L. Kotschote   +3 more
wiley   +1 more source

Effect of molecular perturbation on cocrystal formation: theophylline and its 8‐halo analogues with flavonoids

open access: yesActa Crystallographica Section C, EarlyView.
The tendency for alkaloid–flavonoid cocrystal formation is found to be markedly different for theophylline (Tph) compared to its 8‐halo analogues. Through screening with 13 common flavonoids, Tph is found to form cocrystals with six flavonoids, whereas 8‐Cl‐Tph and 8‐Br‐Tph each form cocrystals with just two, myricetin and kaempferol.
Weijian Ye   +2 more
wiley   +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

The specific contributions of factor H and factor I in controlling fluid phase activation of the alternative complement pathway

open access: yesScientific Reports
The immediate defense provided by the alternative complement pathway (AP) is under constant control by fluid phase regulators, factor H (FH) and factor I (FI), to prevent nonessential activation.
Nancy A. Turner, Joel L. Moake
doaj   +1 more source

Increase in prostanoid formation in rat liver macrophages (Kupffer cells) by human anaphylatoxin C3a [PDF]

open access: yes, 2008
Human anaphylatoxin C3a increases glycogenolysis in perfused rat liver. This action is inhibited by prostanoid synthesis inhibitors and prostanoid antagonists.
Dieter, Peter   +3 more
core  

Álcalis incorporados ao aluminato tricálcico: efeitos na hidratação

open access: yesAmbiente Construído
O aluminato tricálcico (C3A) é a fase que reage mais rápido na hidratação do cimento quando em contato com a água. Geralmente, a forma cristalina sintetizada durante o processo de clinquerização é cúbica.
Ana Paula Kirchheim   +3 more
doaj   +1 more source

Basophils in Immunity: Activation Pathways, Roles in Allergy and AllergoOncology and Application of the Basophil Activation Test

open access: yesAllergy, EarlyView.
ABSTRACT Basophils, the least abundant leukocytes, are increasingly recognised as potent immunomodulators. Upon activation, they rapidly release preformed granule‐associated mediators including histamine and lipid mediators such as LTC4, while cytokine production occurs over a longer timescale, contributing to downstream immune responses.
Jitesh Chauhan   +5 more
wiley   +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

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