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Overview Influenza and vitamin D
Search for treg OR "t-cell" in VitaminDWiki 1440 items as of Jan 2020
Search VitaminDWik for INFECTION in title 50 items as of Aug 2019
Search VitaminDWik for BACTERIA in title 25 items as of Aug 2019
Vitamin D and the Immune System – chapter Aug 2019
7X less risk of influenza if Vitamin D levels higher than 30 ng – Oct 2017
Common cold prevented and treated by Vitamin D, Vitamin C, Zinc, and Echinacea – review April 2018
Vitamin D improves T Cell immunity – RCT Feb 2016
Vitamin D Every Day to Keep the Infection Away 2015 file
shows increasing publications on vitamin D and Infection
- Bacterial vaginosis reduced 10 times by 2,000 IU of vitamin D – RCT June 2015
- Inhaled nanoemulsion of Vitamin D killed lung bacteria – Sept 2017
- Seach VitaminDWiki for "Helicobacter pylori" 100 items as of Aug 2019
- Helicobacter pylori infection protection by the body’s increasing Vitamin D receptors – Nov 2013
- Helicobacter pylori associated with low Vitamin D, treated much better if high Vitamin D
Helicobacter. 2019 Aug 14:e12655. doi: 10.1111/hel.12655.
Yang L1, He X1, Li L1, Lu C1.
Department of Gastroenterology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.
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Various studies reported the relationship between Helicobacter pylori (H pylori) and vitamin D, but there is some controversy around that. This study aimed to conduct a meta-analysis to clarify the relationship between vitamin D and H pylori infection, and vitamin D and H pylori eradication.
Articles published until June 1, 2019, in the PubMed, MEDLINE, and EMBASE databases with English-language medical studies were searched. According to the inclusion criteria, relevant statistical data were extracted to Microsoft Excel and analyzed by STATA15.1.
Ten articles were finally included. It was demonstrated that average 25(OH)D level in H pylori-positive patients was lower than H pylori-negative (SMD = -0.53 ng/mL, 95% CI = (-0.91, -0.16 ng/mL)). For H pylori eradication individuals, the result showed that average 25(OH)D level in H pylori successful eradication individuals was higher than unsuccessful (SMD = 1.31 ng/mL, 95% CI = [0.60, 2.02 ng/mL]).
In addition, individuals with vitamin D deficiency had lower H pylori eradicate rate (OR = 0.09, 95% CI = [0.02, 0.41]). Sensitivity analysis showed that the meta-analysis results were stable and reliable.
Vitamin D was a protective factor to H pylori infection. Moreover, vitamin D can improve the success rate of H pylori eradication.
JGH Open. 2018 Dec; 2(6): 270–275. doi: 10.1002/jgh3.12081, PMCID: PMC6308038. PMID: 30619936
Mohamed S El Shahawy,corresponding author 1 Mahmoud H Hemida, 2 Ibrahim El Metwaly, 3 and Zakarya M Shady 4
Many studies have investigated risk factors other than antibiotic resistance linked to Helicobacter pylori (H. pylori) eradication failure. The aim of this study was to study the effect of serum levels of 25‐hydroxy‐vitamin D (25OHD) on eradication rates of H. pylori infection.
This study included 150 patients diagnosed with H. pylori gastritis using magnifying narrow‐band imaging endoscopy supported by stool antigen test. Serum 25‐OH vitamin D levels were measured via the Enzyme‐Linked Immune Sorbent assay (ELISA) method before starting eradication therapy of H. pylori infection. All patients were treated with clarithromycin‐based triple therapy for 14 days. H. pylori eradication was determined via a stool antigen test performed 4 weeks after the end of therapy. According to the serum level of 25‐OH vitamin D levels, the patients were divided into two groups: group I (sufficient) had a vitamin D level of ≥20 ng/mL, while group II (deficient) had a vitamin D level of <20 ng/mL.
Our results revealed that eradication was successful in 105 (70%) patients and failed in 45 (30%) patients. The mean 25OHD level was significantly lower in the eradication failure group compared to the successful treatment group (14.7 ± 4.5 vs 27.41 ± 7.1; P < 0.001). Furthermore, there were significantly more patients with deficient 25OHD levels in the failed treatment group, 30 (66.6%), compared to the successful group, 10 (9.5%) (P < 0.001).
Our results demonstrated that 25‐OH vitamin D deficiency may be considered a risk factor related to eradication failure of H. pylori infection. In addition, a further randomized trial to evaluate the effect of vitamin D supplementation in H. pylori eradication is mandatory.
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