BACKGROUND: There is a high prevalence of osteopenia among patients with Crohn's disease (CD). There is some evidence that a deficiency of certain bone-active nutrients (including vitamins K and D) may have a partial role in this bone loss. AIMS: To compare the intake and the status of vitamin K in CD patients, currently in remission, with age- and sex-matched controls, and furthermore to investigate the relationship between vitamin K status and bone turnover in these patients. SUBJECTS: CD patients (n = 44; mean age: 36.9 yr) and matched controls (n = 44) were recruited from the Cork University Hospital and Cork City area, respectively. METHODS: Bloods were analyzed for the total and undercarboxylated (Glu)-osteocalcin and urine analyzed for cross-linked N-telopeptides of type I collagen (NTx). Vitamin K(1) intake was estimated by food frequency questionnaire. RESULTS: Vitamin K(1) intake in CD patients tended to be lower than that of controls (mean (SD), 117 (82) vs 148 (80) mug/d, respectively; p= 0.059). Glu and NTx concentrations in CD patients were higher than controls (mean (SD), 5.1 (3.1) vs 3.9 (2.1) ng/ml, respectively; p= 0.03 for Glu; and 49 (41) vs 25.8 (19.5) nM BCE/mM creatinine, respectively; p= 0.001 for NTx). In CD patients, Glu was significantly correlated with NTx (r= 0.488; p < 0.001), even after controlling for age, gender, vitamin D status, calcium intake, and corticosteroid use. CONCLUSION: Vitamin K status of CD patients was lower than that of the healthy controls. Furthermore, the rate of bone resorption in the CD was inversely correlated with vitamin K status, suggesting that it might be another etiological factor for CD-related osteopenia.
BACKGROUND: There is a high prevalence of osteopenia among patients with Crohn's disease (CD). There is some evidence that a deficiency of certain bone-active nutrients (including vitamins K and D) may have a partial role in this bone loss. AIMS: To compare the intake and the status of vitamin K in CDpatients, currently in remission, with age- and sex-matched controls, and furthermore to investigate the relationship between vitamin K status and bone turnover in these patients. SUBJECTS:CDpatients (n = 44; mean age: 36.9 yr) and matched controls (n = 44) were recruited from the Cork University Hospital and Cork City area, respectively. METHODS: Bloods were analyzed for the total and undercarboxylated (Glu)-osteocalcin and urine analyzed for cross-linked N-telopeptides of type I collagen (NTx). Vitamin K(1) intake was estimated by food frequency questionnaire. RESULTS:Vitamin K(1) intake in CDpatients tended to be lower than that of controls (mean (SD), 117 (82) vs 148 (80) mug/d, respectively; p= 0.059). Glu and NTx concentrations in CDpatients were higher than controls (mean (SD), 5.1 (3.1) vs 3.9 (2.1) ng/ml, respectively; p= 0.03 for Glu; and 49 (41) vs 25.8 (19.5) nM BCE/mM creatinine, respectively; p= 0.001 for NTx). In CDpatients, Glu was significantly correlated with NTx (r= 0.488; p < 0.001), even after controlling for age, gender, vitamin D status, calcium intake, and corticosteroid use. CONCLUSION:Vitamin K status of CDpatients was lower than that of the healthy controls. Furthermore, the rate of bone resorption in the CD was inversely correlated with vitamin K status, suggesting that it might be another etiological factor for CD-related osteopenia.
Authors: A Kuwabara; K Tanaka; N Tsugawa; H Nakase; H Tsuji; K Shide; M Kamao; T Chiba; N Inagaki; T Okano; S Kido Journal: Osteoporos Int Date: 2008-09-30 Impact factor: 4.507
Authors: Regina Irwin; Taehyung Lee; Vincent B Young; Narayanan Parameswaran; Laura R McCabe Journal: Inflamm Bowel Dis Date: 2013-07 Impact factor: 5.325