Focal segmental glomerulosclerosis causes: Difference between revisions

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==Causes==
==Causes==
The cause of focal segmental glomerulosclerosis is usually unknown.
According to D'Agati and colleagues, FSGS may be primary of secondary. Primary FSGS is defined as idiopathic FSGS, whereas secondary FSGS is defined as FSGS due to the adaptive structural-functional response mediated by glomerular hypertrophy or hyperfiltration.


The condition affects both children and adults. Men and boys are affected slightly more often than women and girls, and it also occurs more often in African Americans. Focal segmental glomerulosclerosis causes about 20 - 25% of all cases of [[nephrotic syndrome]].
*Primary (idiopathic) FSGS
 
*C1q nephropathy
Known causes include:
*HIV-associated nephropathy
 
*Heroin nephropathy
* [[Heroin]] use
*Familial FSGS
* [[HIV]]
**Autosomal dominant mutation in alpha-actinin 4
* Inherited genetic problems
**Autosomal recessive mutation in podocin
* [[Obesity]]
**Mitochondrial cytopathies
* [[Reflux nephropathy]] (a condition in which urine flows backward from the bladder to the kidney)
*Drug toxicities
* [[Sickle cell disease]]
**Pamidronate
**Lithium
**Interferon-alpha
*Secondary FSGS
**Reduced renal mass
***Oligomeganephronia
***Unilateral renal agenesis
***Renal dysplasia
***Reflux nephropathy
***Sequela to cortical necrosis
***Surgical renal ablation
***Any advanced renal disease with reduction in functioning nephrons
***Chronic allograft nephropathy
**Initial normal renal mass
***Diabetes mellitus
***Hypertension
***Obesity
***Cyanotic congenital heart disease
***Sickle cell anemia
*Non-specific pattern of FSGS caused by renal scarring
**Focal proliferative glomerulonephritis
***IgA nephropathy
***Lupus nephritis
***Pauci-immune focal necrotizing and crescentic glomerulonephritis
**Hereditary nephritis
**Diabetic nephropathy
**Hypertensive arterionephrosclerosis
**Membranous glomerulopathy
**Thrombotic microangiopathies


==References==
==References==

Revision as of 17:56, 3 December 2013

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor-In-Chief:’’’ Cafer Zorkun, M.D., Ph.D. [2]

Overview

Causes

According to D'Agati and colleagues, FSGS may be primary of secondary. Primary FSGS is defined as idiopathic FSGS, whereas secondary FSGS is defined as FSGS due to the adaptive structural-functional response mediated by glomerular hypertrophy or hyperfiltration.

  • Primary (idiopathic) FSGS
  • C1q nephropathy
  • HIV-associated nephropathy
  • Heroin nephropathy
  • Familial FSGS
    • Autosomal dominant mutation in alpha-actinin 4
    • Autosomal recessive mutation in podocin
    • Mitochondrial cytopathies
  • Drug toxicities
    • Pamidronate
    • Lithium
    • Interferon-alpha
  • Secondary FSGS
    • Reduced renal mass
      • Oligomeganephronia
      • Unilateral renal agenesis
      • Renal dysplasia
      • Reflux nephropathy
      • Sequela to cortical necrosis
      • Surgical renal ablation
      • Any advanced renal disease with reduction in functioning nephrons
      • Chronic allograft nephropathy
    • Initial normal renal mass
      • Diabetes mellitus
      • Hypertension
      • Obesity
      • Cyanotic congenital heart disease
      • Sickle cell anemia
  • Non-specific pattern of FSGS caused by renal scarring
    • Focal proliferative glomerulonephritis
      • IgA nephropathy
      • Lupus nephritis
      • Pauci-immune focal necrotizing and crescentic glomerulonephritis
    • Hereditary nephritis
    • Diabetic nephropathy
    • Hypertensive arterionephrosclerosis
    • Membranous glomerulopathy
    • Thrombotic microangiopathies

References

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