Which of the following conditions can lead to metastatic calcification A: Osteomyelitis B: Bone tumors C: Excessive intake of vitamin D D: Hyperthyroidism E: Hyperparathyroidism

At present, preliminary studies believe that brain dysfunction caused by end-stage renal disease may have nothing to do with which factor ( ) A: Anaemia B: Hyperparathyroidism C: Hypercoagulable state D: Hypoglycemia