A) Subjects with a PRKAR1A mutation exhibit normal fasting glucose levels but reduced glucose excursion after an oral glucose load.
B) In subjects with a PRKAR1A mutation serum insulin levels were not different at baseline, and reached a higher peak with increased overall insulin secretion.
C) Table summarizing fasting glucose and insulin levels as well as area under the glucose and insulin curves shown in A and B (*p<0.05)