Ketosis Flashcards
(19 cards)
know the enzyme inhibited by statins
& alpha hydrolase, cholesterol
What is Ketosis?
The synthesis of ketone bodies from acetyl CoA in the absence of sufficient carbohydrates
The three ketone bodies
Acetone
Acetoacetate
Beta-hydroxybutyrate
Which ketone body is not utilized by cells?
Acetone
What causes ketosis?
Increased level of acetoacetate and beta-hydroxybutyrate
Diabetes mellitus
Starvation (low calorie intake)
Which enzyme commits HMG-CoA to ketone body formation?
HMG-CoA lyase
The oxidative phase of PPP is needed for cholesterol synthesis
Which enzyme is inhibited by statins?
HMG-CoA reductase
What causes familial hypercholesterolemia?
Defect in LDL receptor or apo B-100
Which key enzyme converts cholesterol to bile salts?
7 apha- hydroxylase
Steroid hormones are synthesized from?
Cholesterol
The function of glucocorticoids
Regulate gluconeogenesis and reduce the inflammatory response
Function of Mineralcorticoids
Control the reabsorption of inorganic ions by the kidney
Examples of steroid medications
Cortisone
Prednisolone
Organs in the body that utilize ketone bodies
Kidneys (renal cortex)
Brain
Skeletal muscles
heart muscles