Circulating miRNAs associate with historical childhood asthma hospitalization in different serum vitamin D groups
Respiratory Research volume 25, Article number: 118 (2024)
Xiaoning Hong, Mingye Jiang, Alvin T. Kho, Anshul Tiwari, Haiyan Guo, Alberta L. Wang, Michael J. McGeachie, Scott T. Weiss, Kelan G. Tantisira & Jiang Li
Background
Vitamin D may help to alleviate asthma exacerbation because of its anti-inflammation effect, but the evidence is inconsistent in childhood asthma. MiRNAs are important mediators in asthma pathogenesis and also excellent non-invasive biomarkers. We hypothesized that circulating miRNAs are associated with asthma exacerbation and modified by vitamin D levels.
Methods
We sequenced baseline serum miRNAs from 461 participants in the Childhood Asthma Management Program (CAMP). Logistic regression was used to associate miRNA expression with asthma exacerbation through interaction analysis first and then stratified by vitamin D insufficient and sufficient groups. Microarray from lymphoblastoid B-cells (LCLs) treated by vitamin D or sham of 43 subjects in CAMP were used for validation in vitro. The function of miRNAs was associated with gene modules by weighted gene co-expression network analysis (WGCNA).
Results
We identified eleven miRNAs associated with asthma exacerbation with vitamin D effect modification.
Of which,
- five were significant in vitamin D insufficient group and
- nine were significant in vitamin D sufficient group.
Six miRNAs, including hsa-miR-143-3p, hsa-miR-192-5p, hsa-miR-151a-5p, hsa-miR-24-3p, hsa-miR-22-3p and hsa-miR-451a were significantly associated with gene modules of immune-related functions, implying miRNAs may mediate vitamin D effect on asthma exacerbation through immune pathways. In addition, hsa-miR-143-3p and hsa-miR-451a are potential predictors of childhood asthma exacerbation at different vitamin D levels.
Conclusions
miRNAs are potential mediators of asthma exacerbation and their effects are directly impacted by vitamin D levels.
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Overview Asthma and Vitamin D contains
- VitaminDWiki pages containing ASTHMA in title (162 as of Jan 2024)
- Asthma attacks reduced in half if Vitamin D level higher than 42 nanograms – RCT May 2014
- Started with 100,000 IU loading dose and has standard-of-care Asthma drug
- Asthma may be treated by Vitamin D if more than 40 ng for 12 months – Sept 2018
- Those with Asthma or COPD had half the response to Vitamin D – March 2020
- Those with Asthma need larger doses to get the same response.
- Probably need gut-friendly Vitamin D
- CDC funded study: 1.3 X Asthma risk if vaccination contained aluminum – Sept 2022
- Asthma occurrence rate reduced 3X by Vitamin D – 8 study meta-analysis - Aug 2021
- Asthma in child 2.3 X more likely if both parents asthmatic (unless add Vitamin D) – VDAART Nov 2018
- Adult-onset asthma 2X more likely if low vitamin D and not hyperallergenic – May 2018
- Children had poor lung function if mothers had low vitamin D while pregnant – Nov 2022
- 26 health factors increase the risk of COVID-19 – all are proxies for low vitamin D
- CDC list of high-risk for COVID-19 includes Asthma
- Child Asthma increased 2.1 X by antibiotics, Child milk allergy increased 4.4 X by PPI – April 2018
- Asthmatic children taking Corticosteroids had 2X more vitamin D intake, but lower levels – July 2017
- Traffic pollution increases asthma unless supplement with Vitamin D (mice) June 2018
- Childhood asthma problems eliminated for months by 600,000 IU of Vitamin D injection – June 2017
- Proof that Vitamin D Works 92 health problems prevented/treated as of Nov 2020
- Asthma has been proven to be treated by Vitamin D in at least 4 random controlled trials
- Childhood asthma still reduced 4 months after 800 IU of Vitamin D daily - RCT Feb 2016
- Respiratory Disease exacerbations (Asthma, CF, COPD) may be treated by Vitamin D – July 2019
- Women with asthma 35X more likely to be vitamin D deficient – Oct 2013
- If high vitamin D during pregnancy the child is 5X less likely to get asthma
- Asthma is treated by Vitamin D – now they are trying to understand why – Feb 2015
- Increase in vitamin D deficiency may partially explain increases in asthma and allergies – Jan 2015
- Why deficiencies in vitamin D and magnesium are linked to asthma Magnesium allows muscles to relax
- Babies 3.6X more likely to go to hospital for asthma if asthmatic mother had low vitamin D while pregnant – June 2019
- The worse the bronchial asthma, the lower the vitamin D – Jan 2017 has the following chart
click on the chart to see the study