Publication:

The effect of vitamin D on haemoglobin, patient assessed disease activity and endoscopic assessment in ulcerative colitis patients with anaemia

Background Anemia has a dramatic impact on patient's quality of life, yet anemia in patients with UC is still underdiagnosed and undertreated. Hepcidin has been identified to be a central regulator of iron absorption from the intestines and of plasma iron levels. In this study we evaluated the effect of vitamin D supplementation on haemoglobin levels, patient assessed disease activity and endoscopic assessment in ulcerative colitis (UC).

Methods In this prospective, open-labeled, parallel-group, randomized, comparative clinical study, we assigned newly diagnosed cases of UC with haemoglobin levels between 8-11 gm/dL to receive either standard therapy for 12 weeks or to receive oral 4000IU vitamin D3 along with standard therapy for 12 weeks.

Results Data from 60 patients were analyzed after 12 weeks. Supplementation with vitamin D3 significantly raised haemoglobin level in treatment group from (9.09±0.20) (Mean ± SEM) at baseline to 9.62±0.22 (Mean ± SEM) at 12 weeks. On assessment of abdominal pain with NRS scale at the end of treatment at 12 weeks the reduction in NRS score was to 3.47±0.29 in group I and to 2.23±0.21 in group II (p=0.0012) which was highly significant. There was also a statistically significant reduction in the Likert scale at the end of 4, 8 and 12 weeks in both groups. At week 12, there was no statistical difference between the two groups in improving the endoscopy score.

Conclusions Daily high dose vitamin D supplementation is beneficial in ameliorating UC symptoms like abdominal pain and has a positive effect on haemoglobin levels.