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Results for “NEPHROSIS, LIPOID”

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PubMed2002

[New insights about immunopathology of lipoid nephrosis].

Clinical and experimental observations suggest that Lipoid Nephrosis (Minimal change nephrotic syndrome) results from T cell dysfunction due to still unknown mechanisms. By subtractive screening library, we identified 84 transcripts, of which twelve match with proteins of yet unknown function and thirty are unknown clones. Among the 42 known transcripts, at least 18 are closely involved in the TCR-mediated complex signaling cascade. This includes genes encoding components of the T cell receptor and proteins associated with the cytoskeleton scaffold, as well as transcription factors such as NF-kappa B and c-maf. During the relapse phase, we have found significant alterations of the NF-kappa B/I kappa Ba regulatory pathway, whereas very low levels of IL12R beta 2 mRNA were detected suggesting that T cell activation evolves toward a Th2 phenotype. We have shown that c-maf is highly induced, shuttling between nuclear and cytoplasmic compartment during the relapse and the remission phases, respectively. Contrasting with the nuclear expression of c-maf, low IL4 levels were detected in relapse. This suggests that the downstream target gene of c-maf in Lipoid Nephrosis, is not IL4 and provides new directions in research leading to identify the target gene, possibly an unknown Th2 cytokine, which might play a critical role in the pathophysiology of this disease. Thus, the combination of subtractive cloning and differential screening constitutes an efficient approach to identify genes likely to be involved in the pathophysiology of MCNS.

Adolescent↗
PubMed1970

Intraglomerular fibrin, platelet aggregation, and subendothelial deposits in lipoid nephrosis.

We have investigated the formation of fibrin, platelet aggregates, and subendothelial deposits in lipoid nephrosis. Fibrin formation was found in 10 cases of active lipoid nephrosis. Platelet aggregates were found in eight cases and subendothelial deposits in nine. Fibrin and platelets were also found in cases of nephrotic syndrome due to other causes, and in glomerulonephritis. Fibrin was generally absent in lipoid nephrosis in remission and in benign recurrent hematuria. It is suggested that what seems to be a lower incidence in females is more apparent than real and that fibrin or related material may be present in a less easily identifiable form. Steroid therapy apparently had no effect on the presence or absence of fibrin. Most instances were associated with elevated serum cholesterol and alpha(2)-globulin. It is suggested that elevated serum lipids as well as the disease process in the kidney play a role in this phenomenon. It is further suggested that intraglomerular fibrin formation could lead to irreversible renal damage in lipoid nephrosis.

Adolescent↗
PubMed1984

Is house dust allergen a possible causal factor for relapses in lipoid nephrosis?

In three cases of minimal change nephrotic syndrome (lipoid nephrosis), an allergen sensitivity to house dust, cat hair and grass pollen was demonstrated by clinical and biological data. An increase in proteinuria after specific allergen contact and a decrease after withdrawal of the allergens, suggested that the cause was allergenic. Such cases demonstrate the necessity of an etiological investigation of particularly the atopic features in lipoid nephrosis. Results of these investigations can lead to specific therapy in selected cases.

Adolescent↗