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': 'All will predispose to atherosclerosis, except \nSelect and explain. \nA. Homocystinemia, B. Fibrinogen, C. Calcium, D. Lipoprotein A', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Elevated plasma levels of\xa0 homocysteine are\xa0associated with increased risk of atherosclerosis,\xa0thrombosis\xa0and\xa0hypertension.\nLipoprotein A\xa0inhibits fibrinolysis, therefore predisposes to atherosclerosis.\nAtherosclerosis (Greek\xa0 athere-mush)\xa0 is\xa0a\xa0complex disease characterized by thickening or\xa0hardening\xa0of\xa0arteries due\xa0to\xa0the accumulation of lipids\xa0(particularly cholesterol, free,\xa0and\xa0esterified), collagen, fibrous tissue, proteoglycans,\xa0calcium deposits, etc. in the inner arterial wall.\xa0\nSatyanarayana, Ed 3, Pg No 152', 'role': 'assistant'}]