This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lipoproteins, Subject name: Biochemistry
[{'content': 'Lipoprotein x is an indirect estimate of : \nSelect and explain. \nA. Hepatitis, B. Myocardial infarction, C. Cholestasis, D. Atherosclerosis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Lipoprotein x : An abnormal Lipoprotein. Rich in amphipathic lipids Poor in neutral lipids Density between LDL and VLDL On electron microscopy - Onion like vesicular appearance Major protein present - albumin Indirect estimate of Cholestasis In conditions : LCAT deficiency Cholestatic States : Primary Biliary cirrhosis Primary Sclerosing Cholangitis', 'role': 'assistant'}]