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': 'Hypervitaminosis D may cause all of the following EXCEPT:- \nSelect and explain. \nA. Remineralization of bone, B. Deposition of calcium in arteries, C. Renal calculi, D. Loss of appetite', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Hypervitaminosis D:\n\n\xa0Vitamin D is stored mostly in liver and slowly metabolised.\xa0\nAmong the vitamins,\xa0 vitamin D is the most toxic in overdoses (10-100 times RDA).\xa0\nToxic eﬀects of hypervitaminosis D\xa0 include demineralization of bone (resorption) and increased calcium absorption from the intestine,\xa0 Ieading to elevated calcium in plasma (hypercalcemia). Prolonged hypercalcemia is associated with\xa0 deposition of calcium in many soft tissues such as kidney and arteries.\xa0\nHyper- vitaminosis D may lead\xa0 to formation of stones in kidneys (renal calculi).\xa0\nHigh consumption of vitamin D is associated with loss\xa0 of appetite, nausea, increased thirst, loss of weight\n\nKey Concept:\nToxic eﬀects of hypervitaminosis D\xa0 include demineralization of bone (resorption) and increased calcium absorption from the intestine,\xa0 Ieading to elevated calcium in plasma (hypercalcemia).\nRef : Textbook of Biochemistry, Satyanarayana', 'role': 'assistant'}]