Nephropathy Patterns and Immune Complexes

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Questions and Answers

Which type of cells cause glomerular injury and are involved in the progression of some glomerulonephritides?

  • Neutrophils and monocytes
  • Resident glomerular cells
  • Platelets
  • Macrophages and T lymphocytes (correct)

What is the result of lymphocyte activation on exposure to antigen?

  • Dissolution of glomerular injury
  • Glomerular injury (correct)
  • Lymphocyte depletion
  • Activation of alternative complement pathway

What is the effect of arachidonic acid metabolites on GFR?

  • Increase in GFR
  • Variable effect on GFR
  • No effect on GFR
  • Reduction in GFR (correct)

What is the role of macrophages and T lymphocytes in glomerular injury?

<p>Cytokines and growth factors (B)</p> Signup and view all the answers

What is the term previously used to describe peripheral layers membranoproliferative glomerulonephritis?

<p>Dense-deposit disease (C)</p> Signup and view all the answers

What is the result of complement activation in glomerular injury?

<p>All of the above (D)</p> Signup and view all the answers

What is the role of resident glomerular cells in glomerular injury?

<p>Cytokines, growth factors, chemokines, oxygen free radicals, eicosanoids, and endothelin (B)</p> Signup and view all the answers

What is the term used to describe the activation of the alternative pathway in glomerular injury?

<p>C3 glomerulopathies (D)</p> Signup and view all the answers

What is the role of coagulation proteins, such as fibrin, in glomerular disease?

<p>Proliferate parietal epithelial cells (B)</p> Signup and view all the answers

What is the result of the loss of normal slit diaphragms in glomerular injury?

<p>Proteinuria (B)</p> Signup and view all the answers

Which of the following is involved in the maintenance of endothelial integrity and regulation of capillary permeability?

<p>VEGF (C)</p> Signup and view all the answers

What is the characteristic pattern of staining in anti-GBM antibody–induced glomerulonephritis?

<p>Diffuse linear (B)</p> Signup and view all the answers

What is the common feature of multiple types of glomerular injury, including FSGS and diabetic nephropathy?

<p>Loss of podocytes (A)</p> Signup and view all the answers

What is the percentage of cases of human glomerulonephritis caused by anti-GBM antibody–induced glomerulonephritis?

<p>Less than 5% (D)</p> Signup and view all the answers

Which cytokines are involved in inflammatory cell adhesion and recruitment?

<p>IL-1 and TNF (D)</p> Signup and view all the answers

What is the characteristic feature of membranous nephropathy?

<p>Numerous discrete subepithelial electron-dense deposits (B)</p> Signup and view all the answers

What is the result of podocyte injury in glomerular diseases?

<p>Proteinuria (C)</p> Signup and view all the answers

What is the term for the formation of immune complexes locally by antibodies reacting with intrinsic tissue antigens?

<p>In situ immune complex formation (C)</p> Signup and view all the answers

Which of the following is involved in the proliferation of mesangial cells?

<p>PDGF (B)</p> Signup and view all the answers

What is the term for diseases with disparate etiologies whose principal manifestation is injury to podocytes?

<p>Podocytopathy (C)</p> Signup and view all the answers

What is the term for the deposition of immune complexes in the glomerulus from the circulation?

<p>Circulating immune complex deposition (B)</p> Signup and view all the answers

What is the cause of necrotizing and crescentic glomerular damage and clinical syndrome of RPGN?

<p>Anti-GBM antibody–induced glomerulonephritis (B)</p> Signup and view all the answers

What is the characteristic feature of global glomerulonephritis?

<p>Involvement of the entire glomerulus (C)</p> Signup and view all the answers

What is the mechanism underlying most forms of primary glomerulopathy and many secondary glomerular disorders?

<p>Immune mechanisms (A)</p> Signup and view all the answers

What is the primary location of the electron-dense deposits in the EM findings of this disease?

<p>On the epithelial side of the membrane (B)</p> Signup and view all the answers

What is the characteristic of the red cells in the urine of patients with this disease?

<p>Dysmorphic (B)</p> Signup and view all the answers

What is the usual time frame for the onset of symptoms after a sore throat?

<p>1-2 weeks (D)</p> Signup and view all the answers

What is the term for the electron-dense deposits seen in the EM findings of this disease?

<p>Humps (A)</p> Signup and view all the answers

What is the percentage of patients who recover renal function with conservative therapy?

<p>95% (C)</p> Signup and view all the answers

What is the typical color of the urine in patients with this disease?

<p>Smoky or cola-colored (B)</p> Signup and view all the answers

What is the percentage of patients who have c-ANCA or p-ANCA in their serum?

<p>90% (C)</p> Signup and view all the answers

What is the term for the granular deposits seen in the IFM findings of this disease?

<p>Granules (A)</p> Signup and view all the answers

What is the trigger for crescent formation in glomerulonephritis?

<p>Leakage of peripheral layers of leukocytes, plasma proteins, and inflammatory mediators to the urinary space (A)</p> Signup and view all the answers

What is the characteristic feature of glomerulonephritis in Goodpasture syndrome?

<p>Recurrent hemoptysis leading to pulmonary hemorrhage (C)</p> Signup and view all the answers

What is the effect of heavy proteinuria and increased renal catabolism of filtered albumin?

<p>Hypoalbuminemia (B)</p> Signup and view all the answers

What is the cause of edema in nephrotic syndrome?

<p>Decreased intravascular colloid osmotic pressure (D)</p> Signup and view all the answers

What is the characteristic feature of proteinuria in nephrotic syndrome?

<p>Non-selective loss of both LMW and HMW proteins (A)</p> Signup and view all the answers

What is the effect of loss of immunoglobulins in nephrotic syndrome?

<p>Increased risk of infections (C)</p> Signup and view all the answers

What is the cause of membranous nephropathy?

<p>Derangement in glomerular capillary walls (B)</p> Signup and view all the answers

What is the effect of C5b-C9 in nephrotic syndrome?

<p>Activates epithelial and mesangial cells (C)</p> Signup and view all the answers

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