ESTABLISHMENT OF ERYTHROCYTE SAMPLES FOR IN-AIR MICRO-PIXE ANALYSIS AND ITS APPLICATION TO ERYTHROCYTES IN HEMODIALYSIS PATIENTS

The present study aims to analyze the elemental distribution in erythrocytes from five hemodialysis patients treated with erythropoietin in comparison to four healthy controls. Using in-air micro-PIXE we determined that iron dots were distributed in the peripheral region of control erythrocytes, which were made up of two to four compartments. Iron dots tend to aggregate partially in hemodialysis patients. Calcium was rendered to form small dense nodules in erythrocytes of controls, and small dense nodules became marked in some hemodialysis patients. Nodular formation of phosphorous was weakened in both control and hemodialysis patients. Potassium aggregated focally and formed small dense granules in erythrocytes of healthy controls. On the other hand, hemodialysis patients showed enrichment of potassium, with diffuse spreading partially to all over erythrocytes. These findings indicate that in-air micro-PIXE is a useful tool for analyzing the elemental distributions in erythrocytes of hemodialysis patients.

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