scholarly journals Measuring Vitamin D Status in Chronic Inflammatory Disorders: How does Chronic Inflammation Affect the Reliability of Vitamin D Metabolites in Patients with IBD?

2020 ◽  
Vol 9 (2) ◽  
pp. 547 ◽  
Author(s):  
Aysegül Aksan ◽  
Dilem Tugal ◽  
Nathalena Hein ◽  
Katharina Boettger ◽  
Yurani Caicedo-Zea ◽  
...  

Evidence gained from recent studies has generated increasing interest in the role of vitamin D in extraskeletal functions such as inflammation and immunoregulation. Although vitamin D deficiency has been implicated in the pathophysiology of inflammatory diseases including inflammatory bowel disease (IBD), evidence as to whether vitamin D supplementation may cure or prevent chronic disease is inconsistent. Since 25OH-vitamin D (25OHD) has been suggested to be an acute-phase protein, its utility as a vitamin D status marker is therefore questionable. In this study, possible interactions of vitamin D and inflammation were studied in 188 patients with IBD, with high-sensitivity C-reactive protein (hsCRP) levels ≥ 5 mg/dL and/or fecal calprotectin ≥ 250 µg/g defined as biochemical evidence of inflammatory activity. Levels of 25OHD and vitamin D-binding protein (VDBP) were determined by ELISA, and 1,25-dihydroxyvitamin D (1,25OHD) and dihydroxycholecalciferol (24,25OHD) by LC-MS/MS. Free and bioavailable vitamin D levels were calculated with the validated formula of Bikle. Serum 1,25OH2D and vitamin D binding protein (VDBP) levels were shown to differ between the inflammatory and noninflammatory groups: patients with inflammatory disease activity had significantly higher serum concentrations of 1,25OH2D (35.0 (16.4–67.3) vs. 18.5 (1.2–51.0) pg/mL, p < 0.001) and VDBP (351.2 (252.2–530.6) vs. 330.8 (183.5–560.3) mg/dL, p < 0.05) than patients without active inflammation. Serum 24,25OH2D levels were negatively correlated with erythrocyte sedimentation rate (ESR) (−0.155, p = 0.049) while concentrations of serum 1,25OH2D correlated positively with hsCRP (0.157, p = 0.036). Correlations with serum VDBP levels were found for ESR (0.150, p = 0.049), transferrin (0.160, p = 0.037) and hsCRP (0.261, p < 0.001). Levels of serum free and bioavailable 25OHD showed a negative correlation with ESR (−0.165, p = 0.031, −0.205, p < 0.001, respectively) and hsCRP (−0.164, p = 0.032, −0.208, p < 0.001 respectively), and a moderate negative correlation with fecal calprotectin (−0.377, p = 0.028, −0.409, p < 0.016, respectively). Serum total 25OHD concentration was the only vitamin D parameter found to have no specific correlation with any of the inflammatory markers. According to these results, the traditional parameter, total 25OHD, still appears to be the best marker of vitamin D status in patients with inflammatory bowel disease regardless of the presence of inflammation.

2011 ◽  
Vol 21 (9) ◽  
pp. 559-564 ◽  
Author(s):  
Jyrki J. Eloranta ◽  
Christa Wenger ◽  
Jessica Mwinyi ◽  
Christian Hiller ◽  
Christoph Gubler ◽  
...  

2011 ◽  
Vol 176 (6) ◽  
pp. 711-714 ◽  
Author(s):  
Antwan Atia ◽  
Ravindra Murthy ◽  
Beth A. Bailey ◽  
Todd Manning ◽  
Linda L. Garrett ◽  
...  

2013 ◽  
Vol 19 ◽  
pp. S48
Author(s):  
Francisca Dias de Castro ◽  
Joana Magalhães ◽  
Pedro Carvalho ◽  
Maria João Moreira ◽  
Paula Mota ◽  
...  

2017 ◽  
Vol 23 (9) ◽  
pp. 1650-1658 ◽  
Author(s):  
Sana Syed ◽  
Ellen S. Michalski ◽  
Vin Tangpricha ◽  
Supavit Chesdachai ◽  
Archana Kumar ◽  
...  

Gut ◽  
2012 ◽  
Vol 61 (Suppl 2) ◽  
pp. A396.1-A396
Author(s):  
R O Butcher ◽  
L E Loo ◽  
E Nixon ◽  
X McFarlane ◽  
J K Limdi

2021 ◽  
Vol 19 (1) ◽  
pp. 5-10
Author(s):  
I.Yu. Pronina ◽  
◽  
V.S. Tsvetkova ◽  
A.S. Potapov ◽  
E.L. Semikina ◽  
...  

Objective. To study vitamin D status in children with inflammatory bowel diseases (IBD) depending on the diagnosis, gender, age and a season of examination. Patients and methods. The study included 244 children (130 boys and 114 girls) aged 3 to 18 years. The patients were divided into 2 groups depending on the nosological form of disease: Crohn’s disease (CD) – 130 children, ulcerative colitis (UC) – 114 children. Blood vitamin D levels were determined by the method of competitive electrochemiluminescence. Results. Normal levels of vitamin D (>30 ng/ml) were found only in 11.1% of children with IBD (in 11.5% with CD and 10.5% with UC). Vitamin D status corresponded to deficiency levels in 65.9% of cases, of them 15.2% had deep deficiency (<10 ng/ml). Vitamin D status decreased with increasing age of the patients (ρ = -0.2686). No statistically significant differences were found in vitamin D levels that would be dependent on the season of examination, neither were they found in groups of patients with CD and UC. Conclusion. The study showed an extremely low vitamin D status in patients with IBD. The problem of assessing vitamin D levels in children with IBD and its monitoring as well as development of individual algorithms for supplementation remains topical. Key words: vitamin D, inflammatory bowel disease, Crohn’s disease, ulcerative colitis, children


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