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Pathology General 2b85c83e

Which of the following is true about intracellular iron homeostasis in iron deficiency anemia?

A
Transferrin receptor-1 iron responsive elements increase transferrin receptor mRNA concentration and synthesis
B
Transferrin receptor-1 iron responsive elements decrease transferrin receptor mRNA concentration and synthesis
C
Apoferritin mRNA iron response element decreases and ferritin synthesis decreases
D
Apoferritin mRNA iron response element decreases and ferritin synthesis increases
High-Yield Explanation
Answer- A. Transferrin receptor-1 iron responsive elements increase transferrin receptor mRNA concentration and synthesisIn iron deficiency anemia, transferrin receptor-I iron responsive elements increase transfetin receptor mRNA concentration and synthesis."The regulation of iron metabolism at the cytoplasmic mRNA level by interaction of iron regulalory protein (IRP-I) and the iron-responsive elements (IREs) to apoferritin mRNA and transferrin receptor mRNA. When the cytoplasmic iron concentration is low, IRP-I binds to the IREs of both mRNAs.

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