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Is Vitamin C Intake too Low in Dialysis Patients?
MedLine Citation:
PMID:  23106569     Owner:  NLM     Status:  Publisher    
Vitamin C has several well-established roles in physiology including synthesis of collagen, carnitine and epinephrine, absorption of dietary iron, and mobilization of storage iron for erythropoeisis. Loss of several of these functions explains the pathology of scurvy, where defective collagen synthesis and anemia are major symptoms. Vitamin C deficiency is very common in dialysis patients and may arise from dialytic vitamin C clearance, restricted intake of vitamin C-rich foods, and increased vitamin C catabolism in vivo from inflammation. In the dialysis population, greater vitamin C intake may be needed for optimal health. Relationships between intake, body distribution, inflammation, and dialytic losses are complex and need further study. Concern about vitamin C metabolism leading to accumulation of tissue oxalate has led to the recommendation that vitamin C intake equals, but not exceeds, the intake recommended for the general population. Vitamin C deficiency in dialysis patients may have clinical consequences; a study in Renal Research Institute clinics found an association with periodontal disease. Data also support a role for vitamin C in prevention of dialysis-related anemia. New research questions are proposed in this editorial, with a discussion of strategies to determine the optimal provision of vitamin C for CKD patients.
Jochen G Raimann; Nathan W Levin; Ronald G Craig; William Sirover; Peter Kotanko; Garry Handelman
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Publication Detail:
Type:  EDITORIAL     Date:  2012-10-29
Journal Detail:
Title:  Seminars in dialysis     Volume:  -     ISSN:  1525-139X     ISO Abbreviation:  Semin Dial     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8911629     Medline TA:  Semin Dial     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 Wiley Periodicals, Inc.
Renal Research Institute, New York Department of Basic Sciences and Craniofacial Biology, New York University, New York Department of Periodontology and Implant Dentistry, New York University, New York Cooper Medical College, Camden, New Jersey Clinical Lab and Nutrition Science, University of Massachusetts, Lowell, Lowell, Massachusetts.
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