Kidney Tox C&D 8 Flashcards
14-1 Filtration, Reabsorption, and Excretion Rates of Different Substances by the Kidneys*
(*Glomerular filtration rate: 125 ml/min = 180 L/24h)
Glucose (g/day)
Glucose (g/day)
Filtered (meq/24h):
180
Reabsorbed (meq/24h):
180
Excreted (meq/24h):
0
Reabsorbed (%)
100%
14-1 Filtration, Reabsorption, and Excretion Rates of Different Substances by the Kidneys*
(*Glomerular filtration rate: 125 ml/min = 180 L/24h)
Bicarbonate (meq/day)
Bicarbonate (meq/day)
Filtered (meq/24h):
4320
Reabsorbed (meq/24h):
4318
Excreted (meq/24h):
2
Reabsorbed (%)
>99.9
14-1 Filtration, Reabsorption, and Excretion Rates of Different Substances by the Kidneys*
(*Glomerular filtration rate: 125 ml/min = 180 L/24h)
Sodium (meq/day)
Sodium (meq/day)
Filtered (meq/24h):
25,560
Reabsorbed (meq/24h):
25,410
Excreted (meq/24h):
150
Reabsorbed (%)
99.4
14-1 Filtration, Reabsorption, and Excretion Rates of Different Substances by the Kidneys*
(*Glomerular filtration rate: 125 ml/min = 180 L/24h)
Chloride (meq/day)
Chloride (meq/day)
Filtered (meq/24h):
19,440
Reabsorbed (meq/24h):
19,260
Excreted (meq/24h):
180
Reabsorbed (%)
99.1
14-1 Filtration, Reabsorption, and Excretion Rates of Different Substances by the Kidneys*
(*Glomerular filtration rate: 125 ml/min = 180 L/24h)
Water (L/day)
Water (L/day)
Filtered (meq/24h):
169
Reabsorbed (meq/24h):
167.5
Excreted (meq/24h):
1.5
Reabsorbed (%)
99.1
14-1 Filtration, Reabsorption, and Excretion Rates of Different Substances by the Kidneys*
(*Glomerular filtration rate: 125 ml/min = 180 L/24h)
Urea (g/day)
Urea (g/day)
Filtered (meq/24h):
48
Reabsorbed (meq/24h):
24
Excreted (meq/24h):
24
Reabsorbed (%)
50
14-1 Filtration, Reabsorption, and Excretion Rates of Different Substances by the Kidneys*
(*Glomerular filtration rate: 125 ml/min = 180 L/24h)
Creatinine (g/day)
Creatinine (g/day)
Filtered (meq/24h):
1.8
Reabsorbed (meq/24h):
0
Excreted (meq/24h):
1.8
Reabsorbed (%)
0
14-2 Mechanisms of Chemically Induced Acute Renal Failure
Prerenal
Prerenal:
Diuretics
Angiotensin receptor antagonists
Angiotensin-converting enzyme inhibitors
Antihypertensive agents
14-2 Mechanisms of Chemically Induced Acute Renal Failure
Vasoconstriction
Vasoconstriction:
Nonsteroidal anti-inflammatory drugs Radiocontrast agents Cyclosporine Tacrolimus Amphotericin B
14-2 Mechanisms of Chemically Induced Acute Renal Failure
Crystalluria
Crystalluria:
Sulfonamides Methotrexate Acyclovir Triamterene Ethylene glycol Protease inhibitors
14-2 Mechanisms of Chemically Induced Acute Renal Failure
Tubular toxicity
Tubular toxicity:
Aminoglycosides Cisplatin Vancomycin Pentamidine Radiocontrast agents Heavy metals Haloalkane- and haloalkene cysteine conjugates
14-2 Mechanisms of Chemically Induced Acute Renal Failure
Endothelial injury
Endothelial injury:
Cyclosporine Mitomycin C Tacrolimus Cocaine Conjugated estrogens Quinine
14-2 Mechanisms of Chemically Induced Acute Renal Failure
Glomerulopathy
Glomerulopathy:
Gold
Penicillamine
Nonsteroidal anti-inflammatory drugs
14-2 Mechanisms of Chemically Induced Acute Renal Failure
Interstitial nephritis
Interstitial nephritis:
Antibiotics
Nonsteroidal anti-inflammatory drugs
Diuretics
14-3 Models to Study Renal Function
In Vivo
In Vivo: Continuous microperfusion Stopped-flow microperfusion Free-flow micropuncture Confocal microscopy
14-3 Models to Study Renal Function
Ex Vivo
Ex Vivo:
Isolated perfused kidney
Isolated perfused tubules
14-3 Models to Study Renal Function
In Vitro
In Vitro: Renal slides Freshly isolated and purified glomeruli Freshly isolated and purified tubular segments Freshly isolated and purified proximal tubular epithelial cells Primary cultures of renal cells: Tubular epithelial cells Glomerular cells Fibroblasts Immortalized renal epithelial cell lines: LLC-PK1 MDCK NRK-52E OK HK-2
14-4 Selected signaling kinases involved in renal cell injury, survival, or repair
Protein Kinase C
Conventional: PKC alpha
location:
proximal tubules
nephrotoxicant:
Cisplatin, DCVC (S-(1,2)-Dichlorovinyl-L-cysteine)
Novel: PKC epsilon
location:
proximal tubules
nephrotoxicant:
TBHP (t-Butylhydroperoxide)
14-4 Selected signaling kinases involved in renal cell injury, survival, or repair
Mitogen-activated protein kinase (MAPK)
ERK1/2
ERK1/2
location:
proximal tubules
nephrotoxicant:
Cisplatin, H2O2, TBHP, TGHQ (2,3,5-tris-(Glutathion-S-yl)hydroquinone
14-4 Selected signaling kinases involved in renal cell injury, survival, or repair
Mitogen-activated protein kinase (MAPK)
JNK/SAPK
JNK/SAPK
location:
proximal tubules
nephrotoxicant:
Cisplatin
14-4 Selected signaling kinases involved in renal cell injury, survival, or repair
Mitogen-activated protein kinase (MAPK)
P38
P38
location:
proximal tubules
nephrotoxicant:
Cisplatin, H2O2, TGHQ (2,3,5-tris-(Glutathion-S-yl)hydroquinone
14-4 Selected signaling kinases involved in renal cell injury, survival, or repair
Protein kinase B
Protein kinase B
location:
LLC-PK1, Proximal tubules
nephrotoxicant:
Cisplatin, mechanical injury, H2O2, DCVC