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Vitamin D Health problems can run in families (epigenetics, they miss other reasons) – June 2023)

Effect of epigenetics on vitamin D levels: a systematic review until December 2020

Arch Public Health. 2023 Jun 15;81(1):106. doi: 10.1186/s13690-023-01122-2.
Ali Forouhari 1, Motahar Heidari-Beni 2, Shaahin Veisi 3, Parnian Poursafa 4, Roya Kelishadi 5

Background: The association between epigenetic modification of the genes involved in the vitamin D metabolic pathway and vitamin D metabolites' status has been elucidated incompletely. This study aims to review the studies on the mentioned association and create a brighter view of this topic.

Methods: A systematic literature search was conducted in Medline database (PubMed), Scopus, and Web of Science up to the end of November 2020. Original articles which reported the effect of epigenetic alteration-methylation level or its changes-of genes involved in vitamin D regulation on the vitamin D metabolites serum level or its changes were included. The National Institutes of Health (NIH) checklist was used to assess the quality of included articles.

Results: Among 2566 records, nine reports were included in the systematic review according to the inclusion and exclusion criteria. Studies discussed the contribution of methylation status of members of the

  • cytochrome P450 family (CYP2R1, CYP27B1, CYP24A1), and
  • Vitamin D Receptor (VDR) genes to vitamin D level variance.

CYP2R1 methylation status could regulate the contributing factors affecting the vitamin D serum level and predict response to vitamin D supplementation. Studies revealed that impaired methylation of CYP24A1 occurs in response to an increase in serum level of 25-hydroxyvitamin D (25(OH)D). It is reported that the association between methylation levels of CYP2R1, CYP24A1, and VDR genes and 25(OH)D level is not affected by the methyl-donors bioavailability.

Conclusions: The epigenetic modification of the vitamin D-related genes could explain the vitamin D levels variation among populations. Large-scale clinical trials in various ethnicities are suggested to find the effect of epigenetics on vitamin D response variation.

Registration: The systematic review protocol was registered on PROSPERO (registration number: CRD42022306327).
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VitaminDWiki – Genetics category contains

328 articles in the Genetics category

see also

Vitamin D blood test misses a lot
in Visio for 2023

  • Vitamin D from coming from tissues (vs blood) was speculated to be 50% in 2014, and by 2017 was speculated to be 90%
  • Note: Good blood test results (> 40 ng) does not mean that a good amount of Vitamin D actually gets to cells
  • A Vitamin D test in cells rather than blood was feasible (2017 personal communication)
  •    Commercially available 2019
    • However, test results would vary in each tissue due to multiple genes
  • Good clues that Vitamin D is being restricted from getting to the cells
    1) A vitamin D-related health problem runs in the family
    2) Slightly increasing Vitamin D shows benefits (even if conventional Vitamin D test shows an increase)
    3) Vitamin D Receptor test (<$30) scores are difficult to understand in 2016
    • easier to understand the VDR 23andMe test results analyzed by FoundMyFitness in 2018

    4) Back Pain

VitaminDwiki - Reasons for low response by vitamin D level in the blood

VitaminDWiki - Health problems that run in families are often associated with low vitamin D

Includes a section "Gene studies of health problems which run in families" - variety of problems

17+ VitaminDWiki pages with EPIGENETICS in the title

This list is automatically updated

Items found: 18

VitaminDWiki - (Many reasons why vitamin D deficiency has become epidemic only some of them are genetics

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ID Name Comment Uploaded Size Downloads
19663 Epigenetics.pdf admin 16 Jun, 2023 267.05 Kb 102