Table of contents
- Effect of vitamin D on Helicobacter pylori infection and eradication: A meta-analysis - Aug 2019
- Vitamin D3 Inhibits Helicobacter pylori Infection by Activating the VitD3/VDR-CAMP Pathway in Mice - Oct 2020
- The effect of vitamin D deficiency on eradication rates of Helicobacter pylori infection – Oct 2018
- Helicobacter Pylori Eradication: 88% if high vitamin D vs 38% if low - Feb 2021
Immunity category starts with
see alsoVirus category listing has
Overview Influenza and vitamin D
Search for treg OR "t-cell" in VitaminDWiki 1440 items as of Jan 2020
141 VitaminDWiki pages contained "infection" in title (June 2021)
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
Immune system - great 11-minute animated video - Aug 2021 nothing about Vitamin D
13 titles in VitaminDWiki contained INNATE or ADAPTIVE as of July 2021
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.
Vitamin D3 Inhibits Helicobacter pylori Infection by Activating the VitD3/VDR-CAMP Pathway in Mice - Oct 2020
Front. Cell. Infect. Microbiol., 23 October 2020 | https://doi.org/10.3389/fcimb.2020.566730
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Anni Zhou1†, Lei Li2†, Guiping Zhao1, Li Min1, Si Liu1, Shengtao Zhu1, Qingdong Guo1, Chunjie Liu3, Shutian Zhang1* and Peng Li1*
Helicobacter pylori (H. pylori) infection is closely associated with the occurrence and development of gastric diseases. Therefore, eliminating H. pylori infection should help to prevent gastric diseases. Vitamin D3 (VitD3, 1,25(OH)2D3) was previously observed to exhibit anti-H. pylori infection activity in clinic, but these results were reported in heterogeneous in vivo studies without elucidation of the underlying mechanisms. In the present study, we established H. pylori infection models in both wild-type and VDR knockdown (VDR-KD) mice, which were used to demonstrate that VitD3 inhibits H. pylori infection by enhancing the expression of VitD receptor (VDR) and cathelicidin antimicrobial peptide (CAMP). Furthermore, VDR-KD mice that exhibited lower VDR expression were more susceptible to H. pylori infection. In cultured mouse primary gastric epithelial cells, we further demonstrated that the VitD3/VDR complex binds to the CAMP promoter region to increase its expression. These data provide a mechanistic explanation of the anti-H. pylori infection activity of VitD3 at the molecular level in mice and suggest a new avenue for the clinical management of H. pylori eradication therapy.
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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__Is Vitamin D Deficiency a Risk Factor for Helicobacter Pylori Eradication Failure?))
Clin Lab . 2021 Feb 1;67(2). doi: 10.7754/Clin.Lab.2020.200118.
Mokhtar M Shatla, Ahmed S Faisal, Mahmoud Z El-Readi
Background: Host factors related to failure of eradication of Helicobacter pylori (H. pylori) are increasingly studied. This work aimed to study the influence of 25-hydroxy-vitamin D 25(OH)-vitD status on the rate of H. pylori eradication.
Methods: One hundred and fifty patients infected with H. pylori were tested for serum 25(OH)-vitD level prior to 14 days clarithromycin-based triple eradication therapy. Accordingly, patients were divided into: group I (eradication successful) and group II (eradication failure). Both groups were compared regarding mean level of serum 25(OH)-vitD and number and percentage of patients with deficient 25 (OH)-vitD.
Results: Overall rate of eradication was 72%. Mean serum level of 25(OH)-vitD was higher in the eradication successful group compared to the group of eradication failure (28.12 ± 8.10 vs. 13.54 ± 6.37; p < 0.001). The percentage of patients with 25(OH)-vitD deficiency was higher in the group of eradication failure compared to the group of successful eradication [30 (71.5%) vs. 19 (17.5%); p < 0.001]. Patients with sufficient 25(OH)-vitD had a higher rate of eradication compared to patients with deficient 25(OH)-vitD (88% vs. 38.5%).
Conclusions: This study suggested that deficiency of 25(OH)-vitD could be a risk factor for H. pylori eradication failure, and it recommends to investigate the effect of vitamin D supplementation on H. pylori eradication.
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