RESUMO
Effect of malnutrition was studied on placentas of eighty-five malnourished mothers, taking the placentas of sixty-five well nourished mothers as control. Nutritional status of mothers were studied by estimation of haemoglobin, total R.B.C. count and serum protein. Mothers of the malnourished group, showed anaemia of normocytic, microcytic, a few macrocytic type and hypoproteinaemia. Their placentas were of lower weights and sizes than those of control group. Placentas of both the groups showed infarction, degenerative, calcification, fibrinoid necrosis of villi, intervillous fibrin deposition, villous fibrosis, syncytial knotting of villi and proliferation of Langhan's cell of the villi. But the extent and degree of these changes were much more in malnourished group than control group. Activities of the enzyme such as alkaline phosphatase and Glucose-6-phosphatase in placental villi were increased in malnourished group than those in control group. So it appears that placentas of malnourished mothers become underdeveloped having pathological changes greater in extent and degree than control group resulting in inadequate supply of nutrients from mother's blood to foetus blood.