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Higher serum vitamin D levels are associated with protective serum cytokine profiles in patients with ulcerative colitis.


ABSTRACT: BACKGROUND & AIMS:Vitamin D has immune modulating effects on cytokines. Serum vitamin D levels are associated with the risk of relapse in patients with ulcerative colitis (UC), through unknown mechanisms. We tested the hypothesis that this beneficial role of vitamin D on UC is mediated through anti-inflammatory serum cytokine profiles. METHODS:Serum samples from a prospective cohort of seventy UC patients in clinical remission were collected and baseline histological and endoscopic scores were recorded at enrollment. Clinical relapse events were recorded over the 12-month follow-up period. Serum vitamin D and cytokines levels (IL-6, IL-8, IL-17A, TNF-?, IFN-?, IL-4, IL-10) were quantified using ELISA. Linear regression was used to determine correlation between vitamin D and cytokine profiles. Logistic regression models were used to determine the association between serum cytokine profiles and baseline histologic mucosal healing and clinical relapse. RESULTS:Higher serum vitamin D levels positively correlated with higher ratios of IL-4?+?IL-10/IL-17A?+?TNF-? (r?=?0.37, P?

SUBMITTER: Gubatan J 

PROVIDER: S-EPMC5808893 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature

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Higher serum vitamin D levels are associated with protective serum cytokine profiles in patients with ulcerative colitis.

Gubatan John J   Mitsuhashi Shuji S   Longhi Maria Serena MS   Zenlea Talia T   Rosenberg Laura L   Robson Simon S   Moss Alan C AC  

Cytokine 20180108


<h4>Background & aims</h4>Vitamin D has immune modulating effects on cytokines. Serum vitamin D levels are associated with the risk of relapse in patients with ulcerative colitis (UC), through unknown mechanisms. We tested the hypothesis that this beneficial role of vitamin D on UC is mediated through anti-inflammatory serum cytokine profiles.<h4>Methods</h4>Serum samples from a prospective cohort of seventy UC patients in clinical remission were collected and baseline histological and endoscopi  ...[more]

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