Osteoporosis International

, Volume 20, Issue 6, pp 935–942

High prevalence of vitamin K and D deficiency and decreased BMD in inflammatory bowel disease

  • A. Kuwabara
  • K. Tanaka
  • N. Tsugawa
  • H. Nakase
  • H. Tsuji
  • K. Shide
  • M. Kamao
  • T. Chiba
  • N. Inagaki
  • T. Okano
  • S. Kido
Original Article

DOI: 10.1007/s00198-008-0764-2

Cite this article as:
Kuwabara, A., Tanaka, K., Tsugawa, N. et al. Osteoporos Int (2009) 20: 935. doi:10.1007/s00198-008-0764-2

Abstract

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.

Keywords

Inflammatory bowel disease Malabsorption Vitamin K Vitamin D 

Copyright information

© International Osteoporosis Foundation and National Osteoporosis Foundation 2008

Authors and Affiliations

  • A. Kuwabara
    • 1
  • K. Tanaka
    • 1
  • N. Tsugawa
    • 2
  • H. Nakase
    • 3
  • H. Tsuji
    • 4
  • K. Shide
    • 4
  • M. Kamao
    • 2
  • T. Chiba
    • 3
  • N. Inagaki
    • 4
  • T. Okano
    • 2
  • S. Kido
    • 1
  1. 1.Department of Food and NutritionKyoto Women’s UniversityHigashiyamaJapan
  2. 2.Department of Hygienic SciencesKobe Pharmaceutical UniversityKobeJapan
  3. 3.Department of Gastroenterology, Graduate School of MedicineKyoto UniversityKyotoJapan
  4. 4.Department of Diabetes and Clinical Nutrition, Graduate School of MedicineKyoto UniversityKyotoJapan

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