A novel single amino acid deletion impairs fibronectin function and causes familial glomerulopathy with fibronectin deposits: case report of a family.

Background: Glomerulopathy with fibronectin deposits is an autosomal dominant disease associated with proteinuria, hematuria, hypertension and renal function decline. Forty percent of the cases are caused by mutations in FN1, the gene that encodes fibronectin.

Case Presentation: This report describes two cases of Glomerulopathy with fibronectin deposits, involving a 47-year-old father and a 14-year-old son.

Focal and Segmental Glomerulosclerosis and Membranous Nephropathy overlapping in a patient with Nephrotic Syndrome: a case report.

Introduction: Some cases of membranous nephropathy (MGN) present focal segmental glomerulosclerosis (FSGS) typically associated with disease progression. However, we report a case of a patient who seemed to have MGN and FSGS, both primary.

Case Presentation: A 17-year-old female, Caucasian, presenting lower extremity edema associated with episodes of foamy urine and high blood pressure, had physical and laboratorial exams indicating nephrotic syndrome.

Complement System and C4d expression in cases of Membranous nephropathy.

Introduction: Membranous nephropathy (MN) is one of the major causes of nephrotic syndrome. The complement system plays a key role in the pathophysiology of MN.

Objectives: To identify the complement pathway possibly activated in MN cases and correlate the presence of C4d with more severe clinical and histological markers.

Ultrastructural deposits appearing as "zebra bodies" in renal biopsy: Fabry disease?- comparative case reports.

Background: Fabry Disease (FD) is a genetic disorder caused by alpha-galactosidase A deficiency. Certain drugs, such as hydroxychloroquine, can produce renal deposits that mimic morphological findings seen in FD, characterizing a type of drug-induced renal phospholipidosis.

Case Presentation: Case 1: A 28-year-old female patient with systemic lupus erythematosus who had been using hydroxychloroquine for 14 months presented subnephrotic proteinuria.

Diagnosis of congenital and infantile nephrotic syndromes in renal biopsies in Minas Gerais, Brazil: Six case reports.

Congenital or infantile nephrotic syndromes (CNS/INS) correspond to a heterogeneous group of rare diseases in which glomerular renal dysfunction and proteinuria are prominent. The aim of this study is to present six cases of possible CNS/INS with diagnoses based on clinical findings and especially histological, ultrastructural, and immunohistochemical characteristics of renal biopsies. Four cases are presented with diffuse mesangial sclerosis, one of them possibly part of Denys-Drash syndrome and two cases with CNS probably of the Finnish type in patients between 3 months old and 13 years old.

Clinical and epidemiological prevalence of glomerulopathies elderly in the city of Uberaba - MG.

Introduction: Currently, the elderly population of Brazil is suffering significant increase. Aging is a physiological process that causes changes in various organs, including the kidney. A kidney biopsy is of paramount importance to clarify the morphological changes of these entities.

Renal biopsy: use of biomarkers as a tool for the diagnosis of focal segmental glomerulosclerosis.

Focal segmental glomerulosclerosis (FSGS) is a glomerulopathy associated with nephrotic syndrome and podocyte injury. FSGS occurs both in children and adults and it is considered the main idiopathic nephrotic syndrome nowadays. It is extremely difficult to establish a morphological diagnosis, since some biopsies lack a considerable quantifiable number of sclerotic glomeruli, given their focal aspect and the fact that FSGS occurs in less than half of the glomeruli.

Extended hemodialysis in acute kidney injury.

About 10% of patients in the intensive care unit which develop acute renal failure will depend on renal replacement therapy. Although there are no data showing reduction in mortality when compared with intermittent therapy, continuous therapies provide higher cumulative doses of dialysis and greater hemodynamic stability. However, have high costs and are not available in many centers.