Blood samples for FGF-23 were obtained

from a subgroup of 8 patients from one satellite dialysis centre. Middle- (β2-microglobulin and FGF-23) and small-molecule removal were compared as reduction ratios for each compound. Paired t-tests were performed for statistical analysis. Results: β2-microglobulin concentrations fell more with HDF than with conventional HD (HD 66.44%, HDF15L 76.48%, HDF25L 82.05%, p < 0.0001 for all comparisons between each modality). FGF-23 testing is currently in progress. No significant changes were observed in small molecule clearance (K+, PO4−, urea). Conclusions: Consistent with previous reports, HDF with higher convection volumes produces the greatest fall in β2-microglobulin concentrations. This and other middle molecule removal may contribute

to the mortality benefits offered by HDF compared RG7204 purchase with selleck conventional HD. HONDA DAISUKE1,2, OHSAWA ISAO1, SHOJI KEN2, HISADA ATSUKO1, NAGAMACHI SEIJI1, SUZUKI HIYORI1, INOSHITA HIROYUKI1, SHIMAMOTO MAMIKO1, MANO SATOSHI1, HORIKOSHI SATOSHI1, NAGANO MASASHI2, TOMINO YASUHIKO1 1Division of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan; 2Nerima Sakuradai Clinic, Tokyo, Japan Introduction: On-line hemodiafiltration (HDF) is generally reported to improve nutrition status. But a lot of serum proteins are theoretically removed along with the elimination of middle-large molecules. Since total complement hemolytic activity (CH50) can be closely related to nutrition status and represents early turn-over complement components, we evaluated the association of CH50 and nutrition status after the transition to on-line HDF from HD. Methods: Twenty patients who had transited from HD to on-line HDF in December 2012 were enrolled. We evaluated blood samples three times at 0 month, 3 months and 9 months after the transition, and collected the yearly number of administration. Results: All patients were divided into two groups; group A (n = 10)

significantly increased in CH50 at 9 months after the transition and group B (n = 10) significantly decreased. Serum urea nitrogen (SUN), serum creatinine (sCre) and total cholesterol (T-chol) in group B at 0 month were significantly lower than in group A. SUN, sCre, T-chol, LDL-cholesterol, urea acid (UA), potassium Progesterone (K), serum total protein (TP) and serum albumin (Alb) in group B at 9 months after the transition were significantly lower than in group A. In group A, TP significantly increased toward 9 months after the transition. In group B, TP, Alb, UA and HDL-cholesterol significantly decreased toward 9 months after the transition. Additionally, CH50 had already significantly increased toward 3 months after the transition in group A. On the other hand, in group B, CH50 showed no change until 3 months after the transition but significantly decreased after that.