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Randomized Controlled Trial
. 2016 Mar 23:17:33.
doi: 10.1186/s12882-016-0245-3.

Factors associated with serum fetuin-A concentrations after long-term use of different phosphate binders in hemodialysis patients

Hsin-Hung Lin  1   2 , Hung-Hsiang Liou  3 , Ming-Shiou Wu  4 , Chiu-Ching Huang  5   6
Affiliations
Randomized Controlled Trial

Factors associated with serum fetuin-A concentrations after long-term use of different phosphate binders in hemodialysis patients

Hsin-Hung Lin et al. BMC Nephrol. .

Abstract

Background: Fetuin-A is known as a circulating inhibitor of vascular calcification. Factors associated with serum fetuin-A concentrations after long-term use of different phosphate binders in hemodialysis patients is still uncertain.

Methods: In the post-hoc study, we analyzed serum fetuin-A and biochemical factors (Ca, P, i-PTH, hsCRP, TG, LDL-C) in 50 hemodialysis patients, who completed a 48-week, open-Label, controlled randomized parallel-group study. 23 patients received sevelamer and 27 patients received calcium carbonate.

Results: After the 48-week treatment, the sevelamer group had less serum calcium increment, less iPTH decrement, more ALK-P increment, more hsCRP decrement and more LDL-C decrement. There was no significant difference in the serum fetuin-A decrement between two groups. Decreased serum fetuin-A levels were found after 48-week treatment in both groups: from 210.61 (104.73) to 153.85 (38.64) ug/dl, P = 0.003 in sevelamer group, from 203.95 (107.87) to 170.90 (58.02) ug/mL, P =0.002 in calcium group. The decrement in serum fetuin-A (Δfetuin-A) levels was associated with ΔCa (ρ = - 0.230, P = 0.040), ΔiPTH (ρ = 0.306, P = 0.031) and Δalbumin (ρ = 0.408, P = 0.003), not associated with sevelamer use, ΔP and ΔhsCRP.

Conclusion: After long-term sevelamer or calcium carbonate treatment, both groups of maintenance HD patients had lower serum fetuin-A levels. Serum levels of increased calcium, decreased iPTH and decreased albumin were associated with the serum fetuin-A decrement.

Trial registration: ClinicalTrials.gov NCT01755078.

Keywords: CKD; ESRD; Fetuin-A; Hemodialysis; Phosphate binder; Sevelamer.

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References

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