نتایج جستجو برای: complement components
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Age-related macular degeneration (AMD) is the leading cause of irreversible blindness in industrialized nations, affecting 30-50 million people worldwide. The earliest clinical hallmark of AMD is the presence of drusen, extracellular deposits that accumulate beneath the retinal pigmented epithelium. Although drusen nearly always precede and increase the risk of choroidal neovascularization (CNV...
PURPOSE Systemic complement activation is associated with age-related macular degeneration (AMD) and has mainly been attributed to a risk allele in the complement factor H (CFH) gene. Whether other important AMD genes also influence complement activation is unclear. In the present case-control study, complement activity and concentrations of complement components and their activation products a...
Complement is one of the powerful effector systems involved in the body's defense. When present in a dormant state it can, in concert with other components of immune system, protect the individual from foreign pathogens. However, inappropriately activated complement can cause disease. Several disease states such as immune complex and autoimmune diseases and deficiencies of some complement regul...
The complement system has been thought to originate exclusively in the deuterostomes. Here, we show that the central complement components already existed in the primitive protostome lineage. A functional homolog of vertebrate complement 3, CrC3, has been isolated from a 'living fossil', the horseshoe crab (Carcinoscorpius rotundicauda). CrC3 resembles human C3 and shows closest homology to C3 ...
Background: The components of the classical complement pathway play an important role in the pathogenesis of systemic lupus erythematosus (SLE) and are reportedly useful biomarkers of disease activity. In this study, we evaluate disease activity, complement function (total hemolytic complement, CH50) and complement protein levels (C3, C4, C3d, C4d, SC5b-9), comparing the results of patients wit...
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