BACKGROUND AND OBJECTIVES Lupus nephritis is a classic immune complex glomerulonephritis. In contrast, antineutrophil cytoplasmic antibodies are associated with necrotizing and crescentic glomerulonephritis, in the absence of significant immune deposits. Antineutrophil cytoplasmic antibodies are detected by indirect immunofluorescence in 20% of patients with systemic lupus erythematosus. We rep...

The metabotropic receptor P2Y1 is necessary for full ADP-induced platelet activation and is localized on various intrinsic renal cells, including mesangial cells, podocytes, and endothelial cells. To date, nothing is known about the role of the P2Y1 receptor during inflammatory renal disease. The role of the P2Y1 receptor was investigated using 22 P2Y1 gene-deficient (-/-) and 27 wild-type (wt)...

Several types of glomerulonephritis associated with dysproteinemia, such as AL-amyloidosis, light- and heavy-chain deposition disease, and type 1 cryoglobulinemic glomerulopathy, demonstrate monoclonal immunoglobulin deposition. Progressive glomerulonephritis with monoclonal IgG deposits (PGNMID) is also known to feature monoclonal glomerular deposits, but most of these cases occur without unde...

Twenty days after a streptokinase infusion given for myocardial infarction, a patient developed a group G streptococcal throat infection. Thirteen days later he presented with a serum sickness type illness and progressive renal failure. Renal biopsy showed crescentic glomerulonephritis.

Crescent formation in glomerulonephritis (GN) is a manifestation of severe glomerular injury that usually results in a poor clinical outcome. In humans, crescentic GN is frequently associated with evidence of either systemic or organ-specific autoimmunity. T cells play a major role in initiation of adaptive immune responses that lead to crescentic injury. In experimental models of crescentic GN...

Rare bacteria can lead to infective endocarditis, which may lead to renal involvement as severe glomerulonephritis. We report our experience of a 12-year-old child who presented with infective endocarditis and blood culture-grown Gemella morbillorum - a rarely reported bacteria. The clinical picture was further complicated with severe glomerulonephritis. Renal biopsy was suggestive of crescenti...

HLA typing is the cornerstone of kidney transplantation. Here, we present two full-match kidney transplants with early uneventful course but late c4d-mediated rejection and recurrent pauce-immune necrotizing crescentic glomerulonephritis, as each in one. Case 1: A 49 years old Caucasian female patient, received a six-matched cadaveric kidney and had nonspecific changes in 6th and 12th month pro...