Results 41 to 50 of about 976,787 (206)

Assessment of the Role of C3(H2O) in the Alternative Pathway

open access: yesFrontiers in Immunology, 2020
In this study we investigate the hydrolysis of C3 to C3(H2O) and its ability to initiate activation via the alternative pathway (AP) of the complement system.
Karin Fromell   +9 more
doaj   +1 more source

Complement and Chlamydia psittaci: Early Complement-Dependent Events Are Important for DC Migration and Protection During Mouse Lung Infection

open access: yesFrontiers in Immunology, 2021
The zoonotic intracellular bacterium Chlamydia psittaci causes life-threatening pneumonia in humans. During mouse lung infection, complement factor C3 and the anaphylatoxin C3a augment protection against C. psittaci by a so far unknown mechanism.
Martin Kohn   +5 more
doaj   +1 more source

Conformational Complexity of Complement Component C3

open access: yes, 2007
The structures of native C3 and its major fragment C3c have provided a wealth of structural insights into the central protein of the complement system. The proteolytic activation steps, generating the important fragments C3b and iC3b, are thought to induce significant conformational changes in the molecule, yielding protein molecules with distinct ...
Janssen, B.J.C., Gros, P.
openaire   +7 more sources

Complement content in plasma under different storage conditions

open access: yesZhongguo shuxue zazhi, 2023
Objective To investigate the changes in complement content in component blood before blood transfusion. Methods 180 samples from 20 plasma donors were collected at different stages of the preparation process, stored at different temperatures and time ...
Zhi HAN, Yujie HAN, Haihong ZHANG
doaj   +1 more source

Comparative characteristics of the complement system in patients with C3-glomerulopathy and atypical hemolytic uremic syndrome of chronic course who suffered an acute episode of thrombotic microangiopathy

open access: yesТерапевтический архив, 2023
Aim. To compare changes in the complement system in C3-glomerulopathy (C3-GP) and atypical hemolytic uremic syndrome (aHUS) after the relief of an acute episode of thrombotic microangiopathy. Materials and methods.
Valeriya A. Yurova   +5 more
doaj   +1 more source

Complement C3 and allergic asthma: a cohort study of the general population

open access: yesEuropean Respiratory Journal, 2020
Complement C3 plays a role in asthma development and severity. We tested the hypothesis that high plasma complement C3 concentration is associated with high risks of asthma hospitalisation and exacerbation.
S. Vedel-Krogh   +3 more
semanticscholar   +1 more source

Generation of complement protein C3 deficient pigs by CRISPR/Cas9-mediated gene targeting

open access: yesScientific Reports, 2017
Complement protein C3 is the pivotal component of the complement system. Previous studies have demonstrated that C3 has implications in various human diseases and exerts profound functions under certain conditions.
Wei Zhang   +10 more
doaj   +1 more source

Bacterial infections in a pediatric cohort of primary and acquired complement deficiencies

open access: yesPediatric Rheumatology Online Journal, 2020
Background Acquired complement deficiency can occur in the setting of autoimmune syndromes, such as systemic lupus erythematosus (SLE), with very low or, occasionally, undetectable C3 levels.
Taha Al-Shaikhly   +3 more
doaj   +1 more source

Eculizumab treatment: stochastic occurrence of C3 binding to individual PNH erythrocytes

open access: yesJournal of Hematology & Oncology, 2017
Background C5 blockade by eculizumab prevents complement-mediated intravascular hemolysis in paroxysmal nocturnal hemoglobinuria (PNH). However, C3-bound PNH red blood cells (RBCs), arising in almost all treated patients, may undergo extravascular ...
Michela Sica   +5 more
doaj   +1 more source

Complement C3 and Nonalcoholic Fatty Liver Disease in Chronic Kidney Disease Patients: A Pilot Study

open access: yesKidney & Blood Pressure Research, 2020
Context: Evidences have suggested complement C3 is a biomarker for nonalcoholic fatty liver disease (NAFLD) in the general population. Objective: The present study was conducted to explore the predictive function of C3 for NAFLD in chronic kidney disease
Binbin Pan   +3 more
doaj   +1 more source

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