Guillain-Barré syndrome: activated complement components C3a and C5a in CSF. 1987

H P Hartung, and C Schwenke, and D Bitter-Suermann, and K V Toyka

Plasma and spinal fluid levels of complement activation products C3a and C5a were quantitated by radioimmunoassay in a group of 16 patients suffering from acute monophasic Guillain-Barré syndrome (GBS). Median CSF levels of C3a (118 ng/ml) and of C5a (9.6 ng/ml) were significantly elevated when compared with samples from a control group of patients with noninflammatory neurologic diseases. Plasma concentrations of these anaphylotoxic peptides were not significantly different between the two populations. Our findings indicate that the complement system is activated in the CSF of patients with acute GBS. Complement activation products may contribute to the inflammatory changes observed in this disorder.

UI MeSH Term Description Entries
D011129 Polyradiculoneuropathy Diseases characterized by injury or dysfunction involving multiple peripheral nerves and nerve roots. The process may primarily affect myelin or nerve axons. Two of the more common demyelinating forms are acute inflammatory polyradiculopathy (GUILLAIN-BARRE SYNDROME) and POLYRADICULONEUROPATHY, CHRONIC INFLAMMATORY DEMYELINATING. Polyradiculoneuritis refers to inflammation of multiple peripheral nerves and spinal nerve roots. Autoimmune Demyelinating Disease, Peripheral,Demyelinating Autoimmune Disease, Peripheral,Demyelinating Disease, Peripheral Autoimmune,Peripheral Autoimmune Demyelinating Disease,Polyradiculoneuritis,Polyradiculoneuritides,Polyradiculoneuropathies
D003176 Complement C3 A glycoprotein that is central in both the classical and the alternative pathway of COMPLEMENT ACTIVATION. C3 can be cleaved into COMPLEMENT C3A and COMPLEMENT C3B, spontaneously at low level or by C3 CONVERTASE at high level. The smaller fragment C3a is an ANAPHYLATOXIN and mediator of local inflammatory process. The larger fragment C3b binds with C3 convertase to form C5 convertase. C3 Complement,C3 Precursor,Complement 3,Complement C3 Precursor,Complement Component 3,Precursor-Complement 3,Pro-C3,Pro-Complement 3,C3 Precursor, Complement,C3, Complement,Complement, C3,Component 3, Complement,Precursor Complement 3,Precursor, C3,Precursor, Complement C3,Pro C3,Pro Complement 3
D003182 Complement C5 C5 plays a central role in both the classical and the alternative pathway of COMPLEMENT ACTIVATION. C5 is cleaved by C5 CONVERTASE into COMPLEMENT C5A and COMPLEMENT C5B. The smaller fragment C5a is an ANAPHYLATOXIN and mediator of inflammatory process. The major fragment C5b binds to the membrane initiating the spontaneous assembly of the late complement components, C5-C9, into the MEMBRANE ATTACK COMPLEX. C5 Complement,Complement 5,Complement C5, Precursor,Complement Component 5,Precursor C5,Pro-C5,Pro-complement 5,C5, Complement,C5, Precursor,C5, Precursor Complement,Complement, C5,Component 5, Complement,Precursor Complement C5,Pro C5,Pro complement 5
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D015926 Complement C3a The smaller fragment generated from the cleavage of complement C3 by C3 CONVERTASE. C3a, a 77-amino acid peptide, is a mediator of local inflammatory process. It induces smooth MUSCLE CONTRACTION, and HISTAMINE RELEASE from MAST CELLS and LEUKOCYTES. C3a is considered an anaphylatoxin along with COMPLEMENT C4A; COMPLEMENT C5A; and COMPLEMENT C5A, DES-ARGININE. C3a Complement,Complement 3a,Complement Component 3a,C3a, Complement,Complement, C3a,Component 3a, Complement
D015936 Complement C5a The minor fragment formed when C5 convertase cleaves C5 into C5a and COMPLEMENT C5B. C5a is a 74-amino-acid glycopeptide with a carboxy-terminal ARGININE that is crucial for its spasmogenic activity. Of all the complement-derived anaphylatoxins, C5a is the most potent in mediating immediate hypersensitivity (HYPERSENSITIVITY, IMMEDIATE), smooth MUSCLE CONTRACTION; HISTAMINE RELEASE; and migration of LEUKOCYTES to site of INFLAMMATION. C5a Complement,Complement 5a,Complement Component 5a,C5a, Complement,Complement, C5a,Component 5a, Complement

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