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: Biochemistry
[{'content': 'Regan enzyme is an isoenzyme of ? \nSelect and explain. \nA. LDH, B. Creatinine kinase, C. Acid phosphatase, D. Alkaline phosphatase', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Alkaline phosphataseRegan enzyme (isoenzyme) is the isoenzyme of alkaline phosphatase.It arises from placenta know as carcinoplacental enzyme.It is elevated in about 15% fo cases of carcinoma of lung, liver and gut.", 'role': 'assistant'}]