☆ 4.4 Article

Low vitamin D level is an independent predictor of poor outcomes in Clostridium difficile-associated diarrhea

THERAPEUTIC ADVANCES IN GASTROENTEROLOGY (2014)

期刊

THERAPEUTIC ADVANCES IN GASTROENTEROLOGY

卷 7, 期 1, 页码 14-19

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SAGE PUBLICATIONS LTD

DOI: 10.1177/1756283X13502838

关键词

Clostridium difficile enteritis; clostridium difficile diarrhea; vitamin D; hypovitaminosis D; recurrent clostridium difficile

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Gastroenterology & Hepatology

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Background: The incidence, recurrence, and all-cause mortality rate for Clostridium difficile-associated diarrhea (CDAD) has increased markedly over the past 10 years despite treatment. Low vitamin D levels are known to impair immune responses to infection and are associated with increased mortality. We compared the role of patient comorbidity measured by the Charlson Comorbidity Index (CCI) with vitamin D levels to ascertain whether vitamin D levels were an independent variable affecting the outcome of CDAD or a marker of overall comorbidity. Methods: A prospective cohort study studied 62 patients hospitalized between 2008 and 2009 with manifestations of CDAD and a positive C. difficile toxin assay. All patients received standard antibiotics (metronidazole and/or vancomycin). Their status at 30-day follow up was classified as resolved or recurred/expired. Patients CCI was calculated using their medical history. Logistic regression analysis of variables including 25-hydroxyvitamin D, CCI, age, gender, white blood cell count (WBC), albumin and residence type were performed. Results: There were 62 patients (43.6% men, 56.4% women) with CDAD; mean age was 75 +/- 17 years. At 30-day follow up, 28 (45.2%) expired, 10 (16.1%) had persistent or recurrent diarrhea and 24 (38.7%) resolved. Nonresolution was seen in 38 (61.3%). There was no significant association between 30-day resolution status and CCI, gender, WBC, albumin level or residence type. Two variables were found to be independent predictors of resolution of CDAD: normal vitamin D levels (p = 0.028) and age < 70 years (p = 0.024). Subjects with low vitamin D were 4.75 times more likely to fail to resolve CDAD than subjects with normal Vitamin D. Conclusion: In this study, vitamin D level and age are independent predictors of CDAD resolution in hospitalized patients. Low vitamin D levels and age > 70 years old are associated with increased likelihood of recurrence. Low vitamin D levels are not a marker of comorbidity or advanced age.

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Vitamin D and Diabetic Retinopathy

Antonela Gverovic Antunica, Ljubo Znaor, Mira Ivankovic, Velibor Puzovic, Irena Markovic, Snjezana Kastelan

Summary: Diabetic retinopathy, the most common eye disease complication of diabetes, is associated with hypovitaminosis D. Vitamin D2 and D3 are the main forms of vitamin D, with sunlight being a major source. Vitamin D plays a crucial role not only in maintaining healthy bones and immune system but also in the development of various diseases, including diabetic retinopathy. Diagnosis of vitamin D deficiency, which is prevalent worldwide, is done through measuring serum concentration of 25-hydroxyvitamin D. Supplementation of vitamin D has been proven effective in treating diabetic retinopathy, but under the recommendation and supervision of a doctor to prevent potential negative side effects.

INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES (2023)