Megaloblastic Anemia
Folic acid and cobalamin are B-group vitamins that play an es sential role in many cellular processes in the body. Deficiency in one or both of these vitamins causes megaloblastic anaemia. This is a disease characterized by the presence of megaloblasts. Meg aloblasts occur when inhibition of DNA synthesis causes abnor mal maturation between the nucleus and the cytoplasm of the cell. Megaloblastic anemia causes macrocytic anemia and intramedul lary hemolysis. The most common causes are folate (vitamin B9) deficiency and cobalamin (vitamin B12) deficiency. Megaloblas tic anemia can be diagnosed based on characteristic morphologic and laboratory findings. Therapy involves treating the underlying cause eg, with vitamin supplementation in cases of deficiency.
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