Acute effects on bone marrow after association between Radiosensitizer and X rays-NN/N method

RESUMO

A histopathological and morphometric study was performed in the bone marrow of mice after association of cisdiamminedi-choroplatinum II (3.0 mg/kg) plus X-rays (103.20 mC/Kg 400R). Rstimation of bone marrow effects was assessed by counting the number of non nucleated-erythrocytes (NN) and nucleated (N) cells, and establishing (NN/N) ratio. The morphomeric method used correlates and makes possible quantification of histopathologic changes of bone marrow through relation of vascular stroma and cellular parenchyma. It can be used as a biological dosimetry parameter and to estimate injury and recovery of hematologic evolution of different myelotoxic agents