This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
Food dependent Cushing's syndrome is a result of the aberrant expression of: 
Select and explain. 
A. Gastric inhibitory polypeptide, B. Somatostatin, C. Substance P, D. Tachykinins
A: Gastric inhibitory polypeptide
Answer: A: Gastric inhibitory polypeptide 
Explanation: Glucose dependent insulinotropic polypeptide-Gastric inhibitory peptide ( GIP) In adipocytes - augments triglyceride storage It play role in obesity and insulin resistance GIP receptors aberrantly expressed in adrenal coex result in food dependent cushing syndrome. Ref: Sleisenger and Fordtran's, Edition-9, Page-8