Final answer:
The hormone being overproduced in this syndrome is cortisol, a glucocorticoid hormone produced by the adrenal glands. The patient's symptoms are characteristic of Cushing's syndrome.
Step-by-step explanation:
The hormone being overproduced in this syndrome is cortisol. The patient's symptoms, such as central obesity, buffalo hump, Type 2 diabetes, abdominal striae, and moon facies, are characteristic of Cushing's syndrome, which is caused by the hypersecretion of cortisol. Cortisol is a glucocorticoid hormone that is produced by the adrenal glands.