The effects of non-calcium-based phosphate binders versus calcium-based phosphate binders on cardiovascular calcification and bone remodeling among dialysis patients: a meta-analysis of randomized trials. 2014

Ling Liu, and Yongjun Wang, and Hongyu Chen, and Xiaoling Zhu, and Liusha Zhou, and Yazhen Yang
Department of Nephrology, Hangzhou Traditional Chinese Medical Hospital , Hangzhou, Zhejiang , China.

BACKGROUND Vascular calcification significantly increases the rates of cardiovascular mortality in hemodialysis (HD) patients. Abnormalities in mineral metabolism may play a role in the pathogenesis of arterial calcification. Whether patients treated with non-calcium-based phosphate binders had reduced aortic vascular calcification compared to those treated with calcium-based phosphate binders is still unclear. METHODS We searched multiple databases for studies published through August 2013 that evaluated the effects of non-calcium-based phosphate binders (NCBP) versus calcium-based phosphate binders (CBP) on cardiovascular calcification and bone remodeling among dialysis patients. We summarized test performance characteristics with the use of forest plots, fixed and random effects models, and Egger regression test. RESULTS Eighteen eligible randomized controlled trials totaling 3676 patients were included. Meta-analysis results showed NCBP could significantly attenuate the progression of coronary artery calcification than CBP (WMD: -144.62, 95% CI: -285.62 to -3.63). The serum calcium levels significant lower in NCPB group than in CPB groups (WMD: -0.26, 95% CI: -0.37 to -0.14), but the serum iPTH levels were significantly higher in NCPB groups (WMD: 57.1, 95% CI: 13.42 to 100.78). The osteoid volume and osteoblast numbers were significant higher in NCPB group than in CPB group (WMD: 1.75, 95% CI: 0.78 to 2.73 for osteoid volume; WMD: 4.49, 95% CI: 1.83 to 7.15 for osteoblast numbers). The Egger regression test also showed no potential publication bias (p = 0.725). CONCLUSIONS Based on available data, NCBPs have equally effective with CBPs for serum phosphate control. But there was significantly lower incidence of coronary artery calcification and a significant higher bone formatting rate in NCBP groups than in CBP groups. So we recommend NCBPs as phosphate binders for HD patients.

UI MeSH Term Description Entries
D007811 Lanthanum The prototypical element in the rare earth family of metals. It has the atomic symbol La, atomic number 57, and atomic weight 138.91. Lanthanide ion is used in experimental biology as a calcium antagonist; lanthanum oxide improves the optical properties of glass.
D011073 Polyamines Amine compounds that consist of carbon chains or rings containing two or more primary amino groups. Polyamine
D002118 Calcium A basic element found in nearly all tissues. It is a member of the alkaline earth family of metals with the atomic symbol Ca, atomic number 20, and atomic weight 40. Calcium is the most abundant mineral in the body and combines with phosphorus to form calcium phosphate in the bones and teeth. It is essential for the normal functioning of nerves and muscles and plays a role in blood coagulation (as factor IV) and in many enzymatic processes. Coagulation Factor IV,Factor IV,Blood Coagulation Factor IV,Calcium-40,Calcium 40,Factor IV, Coagulation
D002130 Calcium Phosphates Calcium salts of phosphoric acid. These compounds are frequently used as calcium supplements. Phosphates, Calcium
D002318 Cardiovascular Diseases Pathological conditions involving the CARDIOVASCULAR SYSTEM including the HEART; the BLOOD VESSELS; or the PERICARDIUM. Adverse Cardiac Event,Cardiac Events,Major Adverse Cardiac Events,Adverse Cardiac Events,Cardiac Event,Cardiac Event, Adverse,Cardiac Events, Adverse,Cardiovascular Disease,Disease, Cardiovascular,Event, Cardiac
D002614 Chelating Agents Chemicals that bind to and remove ions from solutions. Many chelating agents function through the formation of COORDINATION COMPLEXES with METALS. Chelating Agent,Chelator,Complexons,Metal Antagonists,Chelators,Metal Chelating Agents,Agent, Chelating,Agents, Chelating,Agents, Metal Chelating,Antagonists, Metal,Chelating Agents, Metal
D006435 Renal Dialysis Therapy for the insufficient cleansing of the BLOOD by the kidneys based on dialysis and including hemodialysis, PERITONEAL DIALYSIS, and HEMODIAFILTRATION. Dialysis, Extracorporeal,Dialysis, Renal,Extracorporeal Dialysis,Hemodialysis,Dialyses, Extracorporeal,Dialyses, Renal,Extracorporeal Dialyses,Hemodialyses,Renal Dialyses
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000069603 Sevelamer A polymeric amine that binds phosphate and is used to treat HYPERPHOSPHATEMIA in patients with kidney disease. GT335-012,RenaGel,Sevelamer Carbonate,Sevelamer Hydrochloride,Carbonate, Sevelamer,GT335 012,GT335012,Hydrochloride, Sevelamer
D015415 Biomarkers Measurable and quantifiable biological parameters (e.g., specific enzyme concentration, specific hormone concentration, specific gene phenotype distribution in a population, presence of biological substances) which serve as indices for health- and physiology-related assessments, such as disease risk, psychiatric disorders, ENVIRONMENTAL EXPOSURE and its effects, disease diagnosis; METABOLIC PROCESSES; SUBSTANCE ABUSE; PREGNANCY; cell line development; EPIDEMIOLOGIC STUDIES; etc. Biochemical Markers,Biological Markers,Biomarker,Clinical Markers,Immunologic Markers,Laboratory Markers,Markers, Biochemical,Markers, Biological,Markers, Clinical,Markers, Immunologic,Markers, Laboratory,Markers, Serum,Markers, Surrogate,Markers, Viral,Serum Markers,Surrogate Markers,Viral Markers,Biochemical Marker,Biologic Marker,Biologic Markers,Clinical Marker,Immune Marker,Immune Markers,Immunologic Marker,Laboratory Marker,Marker, Biochemical,Marker, Biological,Marker, Clinical,Marker, Immunologic,Marker, Laboratory,Marker, Serum,Marker, Surrogate,Serum Marker,Surrogate End Point,Surrogate End Points,Surrogate Endpoint,Surrogate Endpoints,Surrogate Marker,Viral Marker,Biological Marker,End Point, Surrogate,End Points, Surrogate,Endpoint, Surrogate,Endpoints, Surrogate,Marker, Biologic,Marker, Immune,Marker, Viral,Markers, Biologic,Markers, Immune

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