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High prevalence of vitamin K and D deficiency and decreased BMD in inflammatory bowel disease.
MedLine Citation:
PMID:  18825300     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
SUMMARY: Vitamin K and D deficiency and decreased bone mineral density (BMD) were highly prevalent in patients with inflammatory bowel disease (IBD), especially Crohn's disease (CD). Dietary intakes of these vitamins, however, were above the Japanese adequate intakes in IBD patients, suggesting that malabsorption is the basis for hypovitaminosis K and D and decreased BMD. INTRODUCTION: We have studied the possible involvement of vitamin K and D deficiency in the pathogenesis of decreased BMD in IBD. METHODS: Seventy patients with IBD were evaluated for their BMD; plasma levels of vitamin K; phylloquinone (PK), menaquinone-7 (MK-7), and 25OH-D; serum PTH, protein induced by vitamin K absence (PIVKA-II), and undercarboxylated osteocalcin (ucOC) levels; and their food intake. RESULTS: Compared with ulcerative colitis (UC) patients, CD patients had significantly lower plasma vitamin K and 25OH-D concentrations; significantly higher serum levels of PTH, PIVKA-II, and ucOC; and significantly lower BMD scores at almost all measurement sites. More IBD patients were vitamin K deficient in bone than in liver. Multiple regression analyses revealed that low plasma concentrations of vitamin K and 25OH-D were independent risk factors for low BMD and that they were associated with the patients' fat intake, but not with their intake of these vitamins. CONCLUSION: IBD patients have high prevalence of decreased BMD and vitamin K and D deficiency probably caused by malabsorption of these vitamins.
Authors:
A Kuwabara; K Tanaka; N Tsugawa; H Nakase; H Tsuji; K Shide; M Kamao; T Chiba; N Inagaki; T Okano; S Kido
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-09-30
Journal Detail:
Title:  Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA     Volume:  20     ISSN:  1433-2965     ISO Abbreviation:  Osteoporos Int     Publication Date:  2009 Jun 
Date Detail:
Created Date:  2009-05-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9100105     Medline TA:  Osteoporos Int     Country:  England    
Other Details:
Languages:  eng     Pagination:  935-42     Citation Subset:  IM    
Affiliation:
Department of Food and Nutrition, Kyoto Women's University, 35, Imakumano-kitahiyoshicho, Higashiyama, Kyoto 605-8501, Japan.
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