Results 11 to 20 of about 425,149 (322)

Alterations in the complement cascade in post-traumatic stress disorder [PDF]

open access: yesAllergy, Asthma & Clinical Immunology, 2010
Background In the present study we assessed the functional state of the major mediator of the immune response, the complement system, in post-traumatic stress disorder (PTSD).
Hovhannisyan Lilit P   +3 more
doaj   +5 more sources

Complement Factor D as a Strategic Target for Regulating the Alternative Complement Pathway

open access: yesFrontiers in Immunology, 2021
The complement system is central to first-line defense against invading pathogens. However, excessive complement activation and/or the loss of complement regulation contributes to the development of autoimmune diseases, systemic inflammation, and ...
Jonathan Barratt   +2 more
doaj   +1 more source

The alternative complement pathway revisited [PDF]

open access: yesJournal of Cellular and Molecular Medicine, 2008
Introduction Methods to study and modify the alternative pathway Influence of AP amplification on the effect of specific activation of the other initial pathways Properdin Influence of AP in deficiency states Complement in sepsis Concluding remarks AbstractAlternative pathway amplification plays a major role for the final effect of initial specific ...
Tom Eirik Mollnes, Morten Harboe
openaire   +2 more sources

Alternative Complement Pathway Inhibition Abrogates Pneumococcal Opsonophagocytosis in Vaccine-Naïve, but Not in Vaccinated Individuals

open access: yesFrontiers in Immunology, 2021
To assess the relative contribution of opsonisation by antibodies, classical and alternative complement pathways to pneumococcal phagocytosis, we analyzed killing of pneumococci by human blood leukocytes collected from vaccine-naïve and PCV13-vaccinated ...
Lukas Muri   +10 more
doaj   +1 more source

Complement factor D is linked to platelet activation in human and rodent sepsis

open access: yesIntensive Care Medicine Experimental, 2021
Background The complement factor D (CFD) exerts a regulatory role during infection. However, its physiological function in coagulopathy and its impact on the course of an infection remains unclear. Materials Wild-type and CFD-deficient mice (n = 91) were
O. Sommerfeld   +6 more
doaj   +1 more source

The Sez6 Family Inhibits Complement by Facilitating Factor I Cleavage of C3b and Accelerating the Decay of C3 Convertases

open access: yesFrontiers in Immunology, 2021
The Sez6 family consists of Sez6, Sez6L, and Sez6L2. Its members are expressed throughout the brain and have been shown to influence synapse numbers and dendritic morphology. They are also linked to various neurological and psychiatric disorders.
Wen Q. Qiu   +7 more
doaj   +1 more source

Dengue virus and the complement alternative pathway [PDF]

open access: yesFEBS Letters, 2020
Dengue disease is an inflammatory‐driven pathology, and complement overactivation is linked to disease severity and vascular leakage. Additionally, dysregulation of complement alternative pathway (AP) components has been described, such as upregulation of complement factor D and downregulation of complement factor H (FH), which activate and inhibit the
David L. Gordon   +5 more
openaire   +3 more sources

Complement Alternative and Mannose-Binding Lectin Pathway Activation Is Associated With COVID-19 Mortality

open access: yesFrontiers in Immunology, 2021
BackgroundThe SARS-CoV-2 infection triggers excessive immune response resulting in increased levels of pro-inflammatory cytokines, endothelial injury, and intravascular coagulopathy.
Federica Defendi   +21 more
doaj   +1 more source

The intersection of complemented submodules is not complemented [PDF]

open access: yesJ. Math. Anal. Appl. 522 (1) (2023) 127002, 2023
We show by (counter)example that the intersection of complemented submodules in a Hilbert $C^*$-module is not necessarily complemented, answering an open question from [MR].
arxiv   +1 more source

The Complement System and ANCA Associated Vasculitis in the Era of Anti-Complement Drugs

open access: yesFrontiers in Immunology, 2022
ANCA (anti-neutrophil cytoplasmic antibody)-associated vasculitis (AAV) is the condition in which ANCA, as an autoantibody, is associated with the pathogenesis of vasculitis in small blood vessels, mainly in the ear, nose, throat, kidney, lung, and ...
Yasutaka Kimoto, Takahiko Horiuchi
doaj   +1 more source

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