Endocrine function of the kidneys

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  • Created by: SamDavies
  • Created on: 11-04-19 18:27
What is the function of erythropoietin?
Controls RBC production (erythropoiesis) by the bone marrow?
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Where is fetal erythropoetin made?
Liver
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Where is adult erythropoietin made?
Kidneys
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How is hypoxia detected?
Hypoxia inducible transcription factors (HIF)
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HIF-1 alpha is constitutively expressed. True or false?
True
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With normal oxygen levels, hydroxylation of proline (found on HIF-1 alpha) leads to proteasomal degradation. True or false?
True
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With normal levels of oxygen, HIF-1 alpha forms a complex with HIF-1 beta and hypoxia response elements. True or false?
False
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Is the erythropoietin receptor homodimeric or heterodimeric?
Homodimeric
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Where is the erythropoetin receptor found?
Red cell precursors in the bone marrow
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What kind of feedback does EPO have on the RAAS system?
Negative feedback
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What is the treatment for renal anaemia?
Recombinant erythropoietin
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The first stage of vitamin D production is the UV-dependent photolysis of ----- to -----.
7-dehydrocholesterol, cholecalciferol
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Where in the body is cholecalciferol converted to 25(OH)2D3?
Liver
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The conversion of cholecalciferol to 25(OH)2D3 is a constitutive process. True or false?
True
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What is the name of the receptor on the PCT epithelial lumen which picks up the 25(OH)2D3/DBP complex?
Megalin
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Where is 25(OH)2D3 hydroxylated into 1,25(OH)2D3?
Mitochondria
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What substance is produced by the inactivation of active vitamin D by the enzyme 24-hydroxylase?
Calcitroic acid
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Other cards in this set

Card 2

Front

Where is fetal erythropoetin made?

Back

Liver

Card 3

Front

Where is adult erythropoietin made?

Back

Preview of the front of card 3

Card 4

Front

How is hypoxia detected?

Back

Preview of the front of card 4

Card 5

Front

HIF-1 alpha is constitutively expressed. True or false?

Back

Preview of the front of card 5
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