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Complement C4, Infections, and Autoimmune Diseases [PDF]

open access: yesFrontiers in Immunology, 2021
Complement C4, a key molecule in the complement system that is one of chief constituents of innate immunity for immediate recognition and elimination of invading microbes, plays an essential role for the functions of both classical (CP) and lectin (LP ...
Hongbin Wang   +3 more
doaj   +5 more sources

High plasma complement C4 levels as a novel predictor of clinical outcome in intracerebral hemorrhage [PDF]

open access: yesFrontiers in Aging Neuroscience, 2023
ObjectiveThe complement cascade is activated and contributes to the brain injury after intracerebral hemorrhage (ICH). Complement component 4 (C4), an important component of complement cascade, has been associated with severity of neurological impairment
Moxin Wu   +10 more
doaj   +2 more sources

Evaluation of serum complement C4 among COVID-19 patients in Khartoum state: a case control-based study [version 1; peer review: 2 approved] [PDF]

open access: yesF1000Research, 2023
Background: The complement system is made up of an abundance of unique plasma proteins that play an important role in innate immunity and inflammation, aiding in the fight against pathogenic microbes and viral diseases.
Babbiker Mohammed Taher Gorish   +3 more
doaj   +2 more sources

Effect of Low Complement C4 on Clinical Characteristics of Patients with First-Episode Neuromyelitis Optica Spectrum Disorder [PDF]

open access: yesNeuropsychiatric Disease and Treatment, 2021
Chunyang Pan, Yi Zhao, Haojie Xie, Yongyan Zhou, Ranran Duan, Yanfei Li, Yanjie Jia, Tao Peng Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, People’s Republic of ChinaCorrespondence: Tao PengDepartment of ...
Pan C   +7 more
doaj   +2 more sources

Complement C4 exacerbates astrocyte-mediated neuroinflammation and promotes α-synuclein pathology in Parkinson’s disease [PDF]

open access: yesnpj Parkinson's Disease
Complement C4, implicated in neuroinflammation and synaptic dysfunction, plays a poorly defined role in Parkinson’s disease (PD). Here, we demonstrate elevated C4 levels in PD patient plasma and the substantia nigra of α-synuclein preformed fibril (α-syn
Wenkai Zou   +6 more
doaj   +2 more sources

Longitudinal investigation of the T helper (Th)1-Th2 balance and complement system in clinical high risk for psychosis cohort [PDF]

open access: yesTranslational Psychiatry
The T Helper (Th)1-Th2 imbalance has been observed during the transition from the clinical high-risk (CHR) state to psychosis. However, it remains unclear whether the complement system influences this imbalance during psychosis onset. This study aimed to
TianHong Zhang   +17 more
doaj   +2 more sources

Complement C4, C4A and C4a – What they do and how they differ [PDF]

open access: yesBrain, Behavior, & Immunity - Health
Meike Heurich   +2 more
doaj   +2 more sources

Functional Analysis of Two Divergent C4 Isotypes in the Classical and Lectin Pathways of Complement Activation in the Common Carp (Cyprinus carpio)

open access: yesJournal of Marine Science and Engineering, 2023
In the evolution of the complement system, a major humoral innate immune factor, the existence of multiple isotypes of the complement components is considered as a key strategy to enhance innate immune defense. Complement C4 is also diversified in a wide
Rosli Nehlah   +4 more
doaj   +1 more source

SERUM C3 AND SERUM C4 COMPLEMENT IN PATIENTS WITH BURN TRAUMA AND CORRELATION WITH BURN INJURY SEVERITY

open access: yesSanamed, 2022
Introduction: Burns, depending on the degree of severity, induce a significant pathophysiological response in the body. The complement system participates in the body's defenses as well as in immune responses after burn-induced trauma. Objectives: The
Arslanagic Selma, Karamehic Jasenko
doaj   +1 more source

Associations Between Genotype and Peripheral Complement Proteins in First-Episode Psychosis: Evidences From C3 and C4

open access: yesFrontiers in Genetics, 2021
Schizophrenia is a common neuropsychiatric disorder with complex pathophysiology. Recent reports suggested that complement system alterations contributed to pathological synapse elimination that was associated with psychiatric symptoms in schizophrenia ...
Yu Chen   +11 more
doaj   +1 more source

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