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This study aimed to investigate a possible connection between removal of dental amalgam restorations supported by antioxidant therapy and indicative changes of clinical chemistry parameters. A group of 24 patients, referred for complaints related to amalgam restorations, underwent a removal of their amalgams. All patients were treated with antioxidants (vitamin B-complex, vitamin C, vitamin E, and sodium selenite). An age- and sex-matched control group of 22 individuals was also included. The mercury (Hg) and selenium (Se) concentration in plasma, Hg concentration in erythrocytes, and 17 clinical chemistry variables were examined in three groups: patients before amalgam removal (Before), patients after amalgam removal (After), and control individuals (Control). The Hg and Se values decreased (p < 0.05) in plasma, and the Hg concentration decreased (p < 0.05) in erythrocytes after amalgam removal. The variables serum lactate dehydrogenase (serum LDH) and serum sodium differed significantly both when comparing Control with Before (p < 0.01) and Before with After (p < 0.01). The variables white blood cell count (WBC), blood neutrophil count, blood eosinophil count, blood basophil count, blood lymphocyte count, blood monocyte count, serum potassium, and serum creatinine differed in the Before/After test (p < 0.05). Multivariate statistics (discriminant function analysis) could separate the groups Before and After with only one misclassification.

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Purpose: To determine if donation of six units of blood in three weeks is possible with self-admin'~emd subcutaneous recornbinant human ery~ropoietin (rhEPO) injections and oral iron treatment, Methods: A prospective trial where a total of 32 otherwise healthy patients were phlebotomised before revision hip arthroplasty during rhEPO and oral iron treatment (ferrofumarate). Adverse events were noted and compliance was controlled. Routine laboratory tests were performed at each visit including reticulocytes and 2,3-DPG. The relative oxygen releasing capacity (RORC) and the oxygen releasing capacity (ORC) were calculated. Blood donation was postponed until the next visit if haemoglobin concentrations was < I 15 g-I -~ (men) or < 105 g