Abstract
Background
Phosphate binders have an impact on fibroblast growth factor 23 (FGF23); however, the effect of phosphate binders on serum hepcidin has not been explored. We conducted a 24-week multicenter randomized controlled trial to investigate the effects of lanthanum carbonate or calcium carbonate monotherapy on serum phosphate, FGF23, and hepcidin levels in chronic hemodialysis patients.
Methods
Forty-six patients were recruited, and daily dietary phosphorus was controlled between 600–800 mg. Serum calcium, phosphate, albumin, alkaline phosphatase (ALP), FGF23, intact parathyroid hormone (iPTH), hepcidin, high-sensitivity CRP (hsCRP), 25(OH)D, 1,25(OH)2D, fetuin-A, and osteopontin were checked as scheduled.
Results
Twenty-five patients completed the study. Mean serum FGF23 level was significantly decreased after a 24-week treatment with lanthanum (8677.5 ± 7490.0 vs. 4692.8 ± 5348.3 pg/mL, p = 0.013, n = 13), but not with calcium (n = 12). The reduction of serum hepcidin in lanthanum group was positively correlated with the decrement of serum phosphate (r = 0.631, p = 0.021) and serum hsCRP (r = 0.670, p = 0.012) levels, respectively. Serum ALP, iPTH, vitamin D, fetuin-A, and osteopontin revealed no significant inter- or intragroup differences.
Conclusions
In summary, a decrease in serum FGF23 levels and a trend of decline in hepcidin levels were observed only in lanthanum group.
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Change history
23 February 2017
An erratum to this article has been published.
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Acknowledgements
The research was supported by Saint Mary’s Hospital Research Fund. (SMHRF100004).
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The authors have declared that no conflict of interest exists.
Human rights and ethical approval
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee at which the studies were conducted (IRB approval number SMHIRB100001) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
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Informed consent was obtained from all individual participants included in the study.
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Registration of clinical trials The registration number of NCT01845090 in www.clinicaltrials.gov. (Clinical Trials).
Y.-M. Chang, S.-C. Tsai, and H.-H. Liou contribute equally.
An erratum to this article is available at https://doi.org/10.1007/s10157-017-1384-y.
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Chang, YM., Tsai, SC., Shiao, CC. et al. Effects of lanthanum carbonate and calcium carbonate on fibroblast growth factor 23 and hepcidin levels in chronic hemodialysis patients. Clin Exp Nephrol 21, 908–916 (2017). https://doi.org/10.1007/s10157-016-1362-9
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DOI: https://doi.org/10.1007/s10157-016-1362-9