Document Detail

Association of vitamin K deficiency with bone metabolism and clinical disease activity in inflammatory bowel disease.
MedLine Citation:
PMID:  21482072     Owner:  NLM     Status:  Publisher    
OBJECTIVE: Inflammatory bowel disease (IBD) is a chronic inflammatory process in the digestive tract and patients with IBD develop osteopenia. Although vitamins K and D are important for maintaining bone health and inhibiting inflammation, their roles in patients with IBD are not clear. We investigated the roles of vitamins K and D in the bone health and inflammation in patients with IBD. METHODS: Bone mineral density (BMD) of patients with IBD (Crohn's disease [CD], n = 47, and ulcerative colitis [UC], n = 40) was measured with dual-energy X-ray absorptiometry. Vitamin K and D levels of patients with IBD and healthy volunteers (n = 41) were evaluated by measuring serum undercarboxylated osteocalcin and 1,25 dihydroxyvitamin D, respectively. Clinical activity index was evaluated in patients with CD and UC. RESULTS: BMD was low in patients with CD and UC. Serum undercarboxylated osteocalcin levels were significantly higher in patients with CD, but not with UC, compared with healthy subjects, indicating that bone vitamin K is insufficient in patients with CD. The levels of undercarboxylated osteocalcin were significantly correlated with the clinical activity index of CD, although they were not correlated with BMD. The levels of 1,25 dihydroxyvitamin D were significantly lower in patients with CD and UC than in healthy subjects. The levels of 1,25 dihydroxyvitamin D were inversely correlated with BMD in patients with UC and were not correlated with the clinical activity index of CD. CONCLUSION: Vitamins K and D are insufficient in patients with IBD. Insufficiency of vitamin K is suggested to be associated with inflammatory processes of CD.
Sachiko Nakajima; Hideki Iijima; Satoshi Egawa; Shinichiro Shinzaki; Jumpei Kondo; Takahiro Inoue; Yoshito Hayashi; Jin Ying; Akira Mukai; Tomofumi Akasaka; Tsutomu Nishida; Tatsuya Kanto; Masahiko Tsujii; Norio Hayashi
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-4-8
Journal Detail:
Title:  Nutrition (Burbank, Los Angeles County, Calif.)     Volume:  -     ISSN:  1873-1244     ISO Abbreviation:  -     Publication Date:  2011 Apr 
Date Detail:
Created Date:  2011-4-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8802712     Medline TA:  Nutrition     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Elsevier Inc. All rights reserved.
Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.
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