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We studied the impact of human (HM) and cow (CM) milk on the recovery of blood and bone marrow cells in malnourished mice. Results: both milks normalized serum albumin levels and improved thymus weight. HM was less effective than CM to increase body weight and serum transferrin levels. In contrast, HM was more effective than CM to increase the number of leukocytes and lymphocytes in peripheral blood. Both milks induced an increment in mitotic pool cells in bone marrow and ?-naphthyl butyrate esterase positive cells in peripheral blood. They also normalized phagocytic function in blood neutrophils and oxidative burst in peritoneal cells. Conclusion: both milks were equally effective to exert favorable effects on the number of the bone marrow cells and the functions of the blood and peritoneal cells involved in immune response. However, only HM normalized the number of leukocytes and increased the number of neutrophils in peripheral blood.
