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A STROBE compliant observational study on trace elements in patients with ulcerative colitis and their relationship
Farid Poursadegh1, Mitra Ahadi2, Hassan Vosoughinia1
1Student Research Committee.
Abstract:
Nutritional deficiencies and malnutrition are considered to be related to ulcerative colitis (UC); however, the association between serum levels of micronutrients and UC is not well known. This study aimed to evaluate the serum levels of micronutrients in UC patients and investigate their association with disease activity.This cross-sectional study was conducted on UC patients visiting the Department of Gastroenterology at 3 different teaching hospitals between January 2016 and January 2017. UC activity was measured based on Truelove and Witts' severity index and guidelines for colonoscopy. A healthy gender- and age-matched group was also selected. Serum levels of zinc, copper, selenium, ceruloplasmin, albumin, and total protein were compared between the 2 groups of UC patients and healthy subjects using independent-samples t test. Also, the association between serum levels of micronutrients and UC activity was assessed by using Pearson and Spearman correlation coefficient tests. The data were analyzed by SPSS version 21, considering P ≤.05 as the statistical significance level.Overall, 112 (54 male and 58 female) individuals with the mean age of 34.6 years were studied in the 2 groups of UC patients (n = 56) and healthy subjects (n = 56). The 2 groups were homogeneous in terms of age, gender, marital status, place of residence, and educational level (P >.05). The serum levels of total protein (6.41 ± 1.1 vs 7.41 ± 0.4 g/dL; P = .0001), albumin (4.72 ± 1.1 vs 5.19 ± 0.28 g/dL; P = .0001), zinc (679 ± 62 vs 1055 ± 156 μg/L; P = .0001), and selenium (81.85 ± 6.4 vs 108.4 ± 12.98 micg/L; P = .0001) were significantly lower in the UC patients. The serum level of copper did not differ significantly between the 2 groups (P = .1).Considering the simultaneous reduction in nutritional criteria in the UC patient group, malnutrition appears to be a factor affecting micronutrient deficiency in patients with UC.
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