Biomaterial Database

Studies of circulating immune complexes and lymphocyte subpopulations in childhood IgM mesangial nephropathy. 1986

C Y Lin, and C M Chu

T cell subsets, serum immunoglobulin (IgM) level, IgM-bearing lymphocytes, and circulating immune complexes (CIC) were studied in 12 children who suffered from IgM mesangial nephropathy (IgMN) during the acute nephrotic phase, in remission and relapse. Frequent relapses were observed in 11 cases, and 1 was partially responsive to steroid treatment. IgMN was diagnosed by the consistent pattern of IgM deposition by all four FITC-labelled antihuman IgM antibodies from rabbits and goats supplied by four different companies and by the 100% positivity of electron-dense mesangial deposits in an identical localization and distribution pattern of kidney biopsy specimen. CIC were detected by the 3.5% polyethylene glycol method. In sera from 12 patients IgM CIC were detected in 8 cases during the acute nephrotic phase. High levels of C3 CIC and C4 CIC were also found in these cases during the acute nephrotic phase. The CIC were undetectable in remission. Only 3 cases were detectable at low levels of IgM CIC during the second relapse. High serum IgM levels and IgM-bearing lymphocytes were noted in these patients. The patients also had a significant increase of OKT8 cells and a decrease in the OKT4/OKT8 ratio during the acute phase and in relapse. Taken together, the immunopathologic and clinical features suggest that IgMN is a disease entity with a chiefly classical pathway activation of complement components. The correlation between the changes of T cell subsets and the disease activity in IgMN suggests that this may serve as a therapeutic and prognostic guide.

UI	MeSH Term	Description	Entries
D007070	Immunoglobulin A	Represents 15-20% of the human serum immunoglobulins, mostly as the 4-chain polymer in humans or dimer in other mammals. Secretory IgA (IMMUNOGLOBULIN A, SECRETORY) is the main immunoglobulin in secretions.	IgA,IgA Antibody,IgA1,IgA2,Antibody, IgA
D007074	Immunoglobulin G	The major immunoglobulin isotype class in normal human serum. There are several isotype subclasses of IgG, for example, IgG1, IgG2A, and IgG2B.	Gamma Globulin, 7S,IgG,IgG Antibody,Allerglobuline,IgG(T),IgG1,IgG2,IgG2A,IgG2B,IgG3,IgG4,Immunoglobulin GT,Polyglobin,7S Gamma Globulin,Antibody, IgG,GT, Immunoglobulin
D007075	Immunoglobulin M	A class of immunoglobulin bearing mu chains (IMMUNOGLOBULIN MU-CHAINS). IgM can fix COMPLEMENT. The name comes from its high molecular weight and originally was called a macroglobulin.	Gamma Globulin, 19S,IgM,IgM Antibody,IgM1,IgM2,19S Gamma Globulin,Antibody, IgM
D008297	Male		Males
D009404	Nephrotic Syndrome	A condition characterized by severe PROTEINURIA, greater than 3.5 g/day in an average adult. The substantial loss of protein in the urine results in complications such as HYPOPROTEINEMIA; generalized EDEMA; HYPERTENSION; and HYPERLIPIDEMIAS. Diseases associated with nephrotic syndrome generally cause chronic kidney dysfunction.	Childhood Idiopathic Nephrotic Syndrome,Frequently Relapsing Nephrotic Syndrome,Multi-Drug Resistant Nephrotic Syndrome,Pediatric Idiopathic Nephrotic Syndrome,Steroid-Dependent Nephrotic Syndrome,Steroid-Resistant Nephrotic Syndrome,Steroid-Sensitive Nephrotic Syndrome,Multi Drug Resistant Nephrotic Syndrome,Nephrotic Syndrome, Steroid-Dependent,Nephrotic Syndrome, Steroid-Resistant,Nephrotic Syndrome, Steroid-Sensitive,Nephrotic Syndromes,Steroid Dependent Nephrotic Syndrome,Steroid Resistant Nephrotic Syndrome,Steroid Sensitive Nephrotic Syndrome,Steroid-Dependent Nephrotic Syndromes,Steroid-Resistant Nephrotic Syndromes,Steroid-Sensitive Nephrotic Syndromes,Syndrome, Nephrotic,Syndrome, Steroid-Sensitive Nephrotic
D012016	Reference Values	The range or frequency distribution of a measurement in a population (of organisms, organs or things) that has not been selected for the presence of disease or abnormality.	Normal Range,Normal Values,Reference Ranges,Normal Ranges,Normal Value,Range, Normal,Range, Reference,Ranges, Normal,Ranges, Reference,Reference Range,Reference Value,Value, Normal,Value, Reference,Values, Normal,Values, Reference
D002648	Child	A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL.	Children
D002675	Child, Preschool	A child between the ages of 2 and 5.	Children, Preschool,Preschool Child,Preschool Children
D003165	Complement System Proteins	Serum glycoproteins participating in the host defense mechanism of COMPLEMENT ACTIVATION that creates the COMPLEMENT MEMBRANE ATTACK COMPLEX. Included are glycoproteins in the various pathways of complement activation (CLASSICAL COMPLEMENT PATHWAY; ALTERNATIVE COMPLEMENT PATHWAY; and LECTIN COMPLEMENT PATHWAY).	Complement Proteins,Complement,Complement Protein,Hemolytic Complement,Complement, Hemolytic,Protein, Complement,Proteins, Complement,Proteins, Complement System
D005260	Female		Females