Results 71 to 80 of about 8,199 (189)

Hybrid mass spectrometry approaches in glycoprotein analysis and their usage in scoring biosimilarity

open access: yesNature Communications, 2016
Many biopharmaceuticals exhibit mixed heterogeneity in their post-translational modifications (PTMs) that are essential for their function. Here the authors use a combination of mass spectrometry techniques to analyse human erythropoietin (EPO) and ...
Yang Yang   +5 more
doaj   +1 more source

Widely Used Commercial ELISA Does Not Detect Precursor of Haptoglobin2, but Recognizes Properdin as a Potential Second Member of the Zonulin Family

open access: yesFrontiers in Endocrinology, 2018
BackgroundThere is increasing evidence for the role of impaired intestinal permeability in obesity and associated metabolic diseases. Zonulin is an established serum marker for intestinal permeability and identical to pre-haptoglobin2.
Lucas Scheffler   +11 more
doaj   +1 more source

Cellular Communication Networks Mediated by Microglia in Ischemic Stroke

open access: yesCNS Neuroscience &Therapeutics, Volume 31, Issue 12, December 2025.
After ischemic stroke, microglia serve as central regulators within the neuroimmune network, engaging in dynamic crosstalk with neurons, astrocytes, vascular endothelial cells, and peripheral immune cells. By releasing cytokines, chemokines, extracellular vesicles, and transmitting mechanical signals, activated microglia coordinate inflammatory ...
Feiyu Ma   +5 more
wiley   +1 more source

Invasive Meningococcal Disease in a Patient With Complement 7 Deficiency

open access: yesJournal of General and Family Medicine, Volume 26, Issue 6, Page 646-649, November 2025.
ABSTRACT Neisseria meningitidis can cause invasive meningococcal disease (IMD). Individuals with primary complement deficiencies are at a higher risk of developing IMD. However, cases of IMD associated with complement deficiency have rarely been reported in Japan.
Hiroaki Nishioka   +2 more
wiley   +1 more source

Immunoglobulin A Nephropathy: Molecular Pathogenesis and Targeted Therapy

open access: yesMedComm, Volume 6, Issue 9, September 2025.
The future of IgAN treatment likely involves combining several therapies to target multiple disease mechanisms simultaneously. Clinical trials are ongoing to evaluate the efficacy and safety of various combinations. As our understanding of IgAN pathogenesis evolves, more targeted and personalized treatment strategies are expected to emerge.
Xu‐Jie Zhou
wiley   +1 more source

Properdin homeostasis requires turnover of the alternative complement pathway

open access: yes, 2010
Properdin is a plasma protein and is also released from neutrophil granules following stimulation. At inflammatory sites it can bind bacteria and apoptotic bodies to trigger alternative pathway (AP) activation. Principles governing properdin
John P. Atkinson   +2 more
core   +1 more source

Study of the variables associated with local complement activation in IgA nephropathy

open access: yesNefrología (English Edition), 2017
Objectives: 1. To identify the variables that are associated with urinary levels of properdin, MBL, C4d, and C5b-9 in patients with idiopathic IgA nephropathy. 2. To analyse whether urinary levels of MBL and/or C4d are useful for identifying the presence
Alfons Segarra-Medrano   +6 more
doaj   +1 more source

Biotic and abiotic factors of bactericidal properties variability of ruminant saliva

open access: yesBIO Web of Conferences, 2020
The microflora of the oral cavity of domestic ruminants, presented by transitive gram-negative species of bacteria (cocci and sticks) in cows, transient and obligate gram-positive (usually cocci) bacteria in sheep was studied. The lowest contamination of
Gilmutdinov Rustam Y.   +3 more
doaj   +1 more source

Expression of properdin in complete and incomplete deficiency: normal in vitro synthesis by monocytes in two cases with properdin deficiency type II due to distinct mutations

open access: yes, 1998
Three properdin deficiency phenotypes have been reported--complete deficiency (type I), incomplete deficiency (type II), and dysfunction of properdin protein (type III)--all associated with increased susceptibility to meningococcal disease. Expression of
Sjöholm, Anders   +5 more
core   +1 more source

Structural Basis for Properdin Oligomerization and Convertase Stimulation in the Human Complement System

open access: yesFrontiers in Immunology, 2019
Properdin (FP) is a positive regulator of the immune system stimulating the activity of the proteolytically active C3 convertase C3bBb in the alternative pathway of the complement system. Here we present two crystal structures of FP and two structures of
Dennis V. Pedersen   +14 more
doaj   +1 more source

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