Comparison of three different methods for measuring classical pathway complement activity.

ارتباط فعالیت بیماری لوپوس اریتماتوز سیستمیک (SLE) با فعالیت مسیر کلاسیک کمپلمان (CH50)

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...

Characterization of complement activity in serum of the four sturgeon species, Acipenser stellatus, A. baeri, A. nudiventris and Huso huso (Chondrostei: Acipenseridae)

Serum complement is valuable tool in determining the health status of fish. This study was conducted to examine in vitro activity of serum complement as an indicator of innate immunity in four sturgeon species, Acipenser stellatus, A. baeri, A. nudiventris and Huso huso (Chondrostei: Acipenseridae). The Effects of different temperatures, concentrations and volumes of serum on alternative comple...

Measuring the 50% haemolytic complement (CH50) activity of serum.

The complement system is a group of proteins that when activated lead to target cell lysis and facilitates phagocytosis through opsonisation. Individual complement components can be quantified however this does not provide any information as to the activity of the pathway. The CH50 is a screening assay for the activation of the classical complement pathway (Fig 1) and it is sensitive to the red...

Inherited Classical and Alternative Pathway Complement Deficiencies in Children: A Single Center Experience

Complement analysis reveals new biomarkers in patients with juvenile idiopathic arthritis

Methods Serum and plasma of the peripheral blood and the synovial fluid were investigated for the activity of the three complement pathways classical (CP), mannose binding lectin (MBL), and the alternative pathway (AP) and total complement activity by measuring SC5b9. Results where compared to published reference controls and 18 children without activation of inflammation as an age matched cont...