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[Investigation of the influence of hemodialysis membranes and factors associated with hemodialysis on serum (1-->3)-beta-D-glucan].

The measurement of serum (1-->3)-beta-D-glucan (beta-glucan) is commonly used in the clinical stage. Although it has been considered very useful in the early diagnosis of deep mycosis, it is influenced by several factors, one of which is hemodialysis. Therefore, we decided to investigate clinically the influence of hemodialysis membranes on serum beta-glucan. Plasma samples were collected from 26 patients receiving hemodialysis in Kawasaki Medical School Hospital. The kinds of hemodialysis membranes examined were four synthetic polymers and three natural polymers. We also measured beta-glucan in five washing liquids used in the hemodialysis circuit, five dialyzates, two sodium heparin and two filling liquids for wet type dialyzers to investigate the influence of other factors associated with hemodialysis on serum beta-glucan. Elevations of beta-glucan were observed in some cases treated by hemodialysis apparatus using a saponified cellulose acetate membrane. But, in all cases treated by hemodialysis using a cellulose triacetate membrane, slight elevations of beta-glucan were observed. No significant increases in beta-glucan after hemodialysis were observed in the cases treated by hemodialysis using a synthetic polymer membrane. Elevations of beta-glucan is sodium heparin and in one of the filling liquids for the wet type dialyzer were observed. We, therefore, concluded that there are some other factors having an effect on serum beta-glucan besides the hemodialysis membrane in the patients treated by hemodialysis.