Ketone bodies & ketosis part 3 Flashcards
AKA presentation
often see hypo-g metabolic acidemia EtOH w/drawal N/V Hypovolemia
EtOH metab
Only in liver
Yield cytosolic NADH, mitochondrial NADH & acetyl CoA
Hypo-G in AKA
- No food intake
- EtOH metab –> inc cytosolic NADH –> Dec gluconeogenesis
Cytosolic NADH effect in AKA
Dec substrates for gluconeogenesis
EPI in AKA
inc
Stim HSL to release FA from TG
G:I in AKA
inc
Acetyl CoA in AKA
inc by a lot
Ketogenesis in AKA
super high
Glycogenolysis - key enzymes
Phosphorylase
Debranching enzyme
Gluconeogenesis - key enzymes
G6Pase
FBPase-1
PEPCK
Lipolysis - key enzymes
Hormone sensitive lipase (HSL)
B-oxidation key enzymes
CPT-1
B-Ox enzymes
Ketogenesis key enzymes
HMG CoA lyase
Ketolysis key enzymes
Succinyl CoA transferase
Notable changes for fasting 12 hr - INC:
g:i
glycogenolysis ***
gluconeogenesis
Notable changes for fasting 12 hr - DEC:
plasma glucose
glucose uptake
Notable changes for fasting 3 day - INC:
g:i ** gluconeogenesis ***** plasma kb ketogenesis muscle ketolysis
Notable changes for fasting 3 day - DEC:
plasma glucose
glucose uptake
Notable changes for 1 week fast - INC:
g:i gluconeogenesis (but slowed down) plasma kb ketogenesis **** ketolysis (brain > muscle)
Notable changes for 1 week fast - DEC
plasma glucose but not hypo-g
glucose uptake
Notable changes for DKA in uncontrolled T1DM - INC:
g:i plasma glucose glycogenolysis (1st 24 hrs) plasma kb ketogenesis*** ketolysis
Notable changes for DKA in uncontrolled T1DM - DEC
glucose uptake
pH drops below 7.35 (life threatening)
Notable changes in AKA - INC
g:i gluconeogenesis plasma kb *** ketogenesis ***** ketolysis
Notable changes in AKA - DEC
plasma glucose (hypo-g) glucose uptake
pH < 7.35 but not as bad as DKA