Tables Flashcards
Na transport in the tubules
PCT - 60%
LOH - 30%
DCT - 7%
CD - 2-3%
Proximal tubule Na transporters
A: Cl/IOH, NHE3
B: NaKATPase, KCC3/4
LOH Na transporters
A: NKCC2, ROMK, Claudin
B: NaKATPase, KCC4, ClC-NKB
DCT Na transporters
A: NCC, NHE2, ROMK, HCO0/Cl; ENac, ROMK
B: NaKATPase, ClCK-2, Kir, KCC4
K transport in tubules
DCT 65%
TAL 25%
Ca transport in tubules
PCT 70%
TAL 20%
DT 8%
Ca transport proximal tubule
paracellular, TRPV5, V6
Ca transport TAL
Clauding 16, 19
Mg transport tubules
PT 20%
TAL 70%
DT 5%
Mg transport TAL
paracellular 16, 19
Mg transport DCT
TRPM6/7
Phos transport proximal tubule
NaPiIIa/IIc
Bicab reabsorption tubules
PT 80%
TAL 15%
CD 5%
Proximal tubule HCO3
A: NHE3, AQP1
B: NBce1, NaKATPase
DCT Type A intercalated cell Hco3 reabsorption
A: HKATPase, HATPase
B: kAE1, KCC4, Clc-2-K-Barttin
DCT Type B Intercalated cell Hco3 reabsorption
A: Cl/HCO3, NDCBe, HKATPase
B: HATPase, Clc-K2, AE4
IgA: predictive of ESKD or 50% decline in GFR
Mesangial hypercellularity, tubular atrophy./interstitial fibrosis
IgA: not predictive
endocapillary hypercellularity
IgA: predictive of rate of decline in kidney function
segmental sclerosis
Chronic lesions in SLE
GIFT - Glomerular sclerosis, Interstitial fibrosis, fibrous crescents, tubular atrophy
Acute lesions in SLE
Fibrinoid necrosis, cellular crescents karyorrhexis, endocapillary hypercellularity, subendothelial deposits, wireloop lesions, rupture of GBM
Treatment of SLE Class II
proteinuria >3g, steroids + CNI
Class 3 SLE Treatment
Corticosteroids + cyclophosphamide/MMF
Class IV SLE treatment
Azathioprine 1.5-2.5 mkd
MMF 1-2 g/day
low dose steroids
or CNI if intolerant to aza and MMF