Renal and Endocrine cases Flashcards Preview

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Flashcards in Renal and Endocrine cases Deck (13)
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1
Q

What happens to ACTH produced by the pituitary in the presence of dexamethasone? What about an ectopic ACTH production?

A

Reduce if pituitary, no ACTH reduction if ectopic

2
Q

What would happen to ACTH if the MC2R receptor did not function?

A

Higher, because there is no cort synthesis

3
Q

What is the MOA of amenorrhea with cushings?

A

Cort inhibits CRH production in the hypotahlamus

4
Q

What happens to insulin sensitivity in Cushing’s?

A

Decreases due to chronic elevated BG levels

5
Q

What is the effect of Cort on aldosterone?

A

Increases d/t enzyme saturation of 11beta-HSD2

6
Q

How does Cushing’s cause HTN?

A

Aldosterone synthesis

7
Q

Why osteoporosis with Cushings?

A

Cort inhibits osteoblasts

8
Q

What is the main control of prolactin?

A

Dopamine (inhibits it)

9
Q

What are the two major chemicals that the prostate releases into the ejaculatory duct?

A

PSA

bicarb

10
Q

What are the two major chemicals that the seminal vesicles release into the ejaculatory duct?

A

Fibrinogen and fructose

11
Q

What does inhibin B repress in the male?

A

FSH

12
Q

What is the other name for thyroxine-binding prealbumin?

A

Transthyretin

13
Q

What is the other name for thyrotropin?

A

TSH