This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pathology
Activity of all of the following enzymes is increased in diabetes state except 
Select and explain. 
A. Pyruvate carboxylase, B. PEP Carboxykinase, C. Pyruvate dehydrogenase, D. Glucose 6 phosphatase
C: Pyruvate dehydrogenase
Answer: C: Pyruvate dehydrogenase 
Explanation: .