Glomerulonephritis Flashcards
common causes of glomerular disease (4)
diabetic nephropathy, glomerulonephritis, amyloid nephropathy, transplant glomerulonephropathy
commonest cause of renal failure in adults
diabetic nephropathy
second commonest cause of renal failure in adults
chronic glomerulonephritis
Pathogenesis behind glomerulonephritis
immune mediated disease of the kidneys affecting the glomeruli with tubulointerstitial damage - usually driven by antibodies
3 different patterns of injury in glomerulonephritis
Mesangial cells, endothelial cells, podocytes
Proliferative injury in glomerulonephritis (2)
endothelial or mesangial cells
how do mesangial cells cause proliferative damage in the kidney?
release Ang II, vasoconstric, cause chemokines and inflammatory cells
How do endothelial cells cause proliferative damage in the kidneys?
cause a vasculitis which causes rapid damage to the kidney
How does damage to podocytes cause kidney damage?
podocytes atrophy causing loss of the barrier and thus protein but no blood will leak
Nephrotic syndrome is a triad of…
hypoalbuminaemia, proteinuria, oedema
Presentation of nephrotic syndrome may be…
mild increase in BP, normal to mild decrease in GFR
Nephritic syndrome tends to have…
proteinuria, haematuria (micro/frank) and potentially hypoalbuminaemia
Presentation of nephritic syndrome may be…
mod-severe increased in BP, mod-severe decrease in GFR
How does glomerulonephritis lead to increased BP?
damage to glomerulus restricts blood flow, leading to compensatory BP increase to try and restore flow
How does glomerulonephrities lead to protein and blood in the urine?
damage to podocytes leads to protein and blood leaking into urine