| 单词 | Vitamin B 12 Deficiency |
| 释义 | Vitamin B 12 Deficiency《英文msh词典》Vitamin B 12 Deficiency [主题词] Vitamin B 12 Deficiency [入口词] Deficiency,Vitamin B 12 [入口词] Deficiency,Vitamin B12 [入口词] Vitamin B12 Deficiency [入口词] Deficiencies,Vitamin B12 [入口词] Vitamin B12 Deficiencies [中文释义] 维生素B12缺乏 [英文释义] A nutritional condition produced by a deficiency of VITAMIN B 12 in the diet,characterized by megaloblastic anemia. Since vitamin B 12 is not present in plants,humans have obtained their supply from animal products,from multivitamin supplements in the form of pills,and as additives to food preparations. A wide variety of neuropsychiatric abnormalities is also seen in vitamin B 12 deficiency and appears to be due to an undefined defect involving myelin synthesis. (From Cecil Textbook of Medicine,19th ed,p848) |
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