Document Detail


Vitamin D receptor agonist supplementation and suppression of inflammation may have advantage for all-cause mortality in hemodialysis patients.
MedLine Citation:
PMID:  22457088     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Vitamin D deficiency is common in hemodialysis (HD) patients. The aim of this study was to determine whether HD patients with low 25-hydroxyvitamin D [25(OH)D] levels are at increased risk of mortality.
METHODS: This was a prospective cohort study of Japanese HD patients. We selected all patients with measured serum 25(OH)D levels at the time of entry. We assessed the impact of low serum 25(OH)D levels on the long-term mortality of HD patients by performing Cox regression analyses. Associations between serum 25(OH)D levels and all-cause mortality were also investigated.
RESULTS: Data from 100 patients (mean age 61.0 ± 11.8 years, 64 % males) were available. There was a high prevalence (55 %) of 25(OH)D insufficiency < 20 ng/ml, and 51 % of study subjects were treated with alfacalcidol. Twenty-four patients died during a follow-up period of 4.6 years. There were no significant associations between serum 25(OH)D levels and all-cause mortality (p = 0.777). After adjustments for possible confounders, the hazard ratio (with 95 % CI) for all-cause mortality was 1.091 (1.024-1.167) for age, 0.734 (0.566-1.167) for dialysis vintage, 1.012 (0.995-1.031) for serum total cholesterol values, 2.028 (1.093-3.701) for serum phosphate levels, and 0.291 (0.088-0.855) for treatment with alfacalcidol. A survival advantage of alfacalcidol treatment was observed (log-rank, p = 0.0150). The group of subjects whose serum (25(OH)D level was <20 ng/ml and who were not treated with alfacalcidol had the highest mortality rate.
CONCLUSION: Vitamin D deficiency in HD patients who had not taken vitamin D receptor agonist (VDRA) is associated with an increased risk of all-cause mortality. VDRA supplementation may suppress chronic inflammation and have some advantage for mortality of HD patients with vitamin D deficiency.
Authors:
Tetsuya Ogawa; Ai Kyono; Masayo Sato; Himiko Sugimoto; Kuniaki Otsuka; Kosaku Nitta
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2012-03-29
Journal Detail:
Title:  Clinical and experimental nephrology     Volume:  16     ISSN:  1437-7799     ISO Abbreviation:  Clin. Exp. Nephrol.     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-11     Completed Date:  2013-03-19     Revised Date:  2013-05-27    
Medline Journal Info:
Nlm Unique ID:  9709923     Medline TA:  Clin Exp Nephrol     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  779-85     Citation Subset:  IM    
Affiliation:
Department of Medicine, Medical Center East, Tokyo Women's Medical University, 2-1-10 Nishiogu, Arakawa-ku, Tokyo 116-8567, Japan.
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MeSH Terms
Descriptor/Qualifier:
Aged
Cohort Studies
Female
Humans
Hydroxycholecalciferols / therapeutic use*
Inflammation / drug therapy*
Kidney Failure, Chronic / mortality
Male
Middle Aged
Prospective Studies
Receptors, Calcitriol / agonists*
Renal Dialysis / mortality
Vitamin D / analogs & derivatives,  blood
Vitamin D Deficiency / complications*
Chemical
Reg. No./Substance:
0/Hydroxycholecalciferols; 0/Receptors, Calcitriol; 1406-16-2/Vitamin D; 64719-49-9/25-hydroxyvitamin D; URQ2517572/alfacalcidol

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