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Abstract
Leptin is a regulator of fat metabolism that is synthesized in adipocytes and released into circulation. The serum levels of leptin are, therefore, correlated with body fat mass and show a wide variation in healthy individuals. Leptin may have an additional indirect effect on leukemic hematopoesis. We investigated serum leptin levels with enzyme-linked immunosorbent assays in 14 acute myeloblastic leukemia (AML) patients before and after chemotherapy and compared the results with that of the levels determined 14 healthy controls. We found no significant difference between leptin levels before and after chemotherapy and control group. Therefore, serum leptin level should not be used as a diagnostic marker in acute leukemia patients. However, the possibility of regional leptin production by leukemia blasts in bone marrow stroma creates a high local concentration of leptin within bone marrow microenvironment and systemic leptin level in combination with local leptin production may affect leukemic hematopoesis.
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