Association between vitamin D and endometriosis: a systematic review

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This systematic review found discrepancies in the literature regarding the association between vitamin D metabolism components and endometriosis, necessitating further research.

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This paper systematically reviewed human original research on whether components of vitamin D metabolism (vitamin D metabolites, vitamin D–binding protein, vitamin D receptor polymorphisms, and vitamin D regulatory enzymes) are associated with endometriosis. Using Medline and Cochrane Central databases, the review included 21 studies published in any language and categorized findings across 12 metabolite-focused studies, eight VDBP studies, three VDR polymorphism studies, and two enzyme studies. The authors report discrepancies among outcomes across the available literature and conclude that study heterogeneity and diversity limit the ability to clarify the association, requiring further research. Relevance to endometriosis: this is directly about endometriosis and summarizes evidence linking vitamin D metabolism components to endometriosis associations.

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Abstract

BackgroundEndometriosis is one of the most common gynecological diseases of reproductive age, with a prevalence of 5-10% and grave consequences for quality of life and fertility. Vitamin D (vit D), a classic regulator of plasma calcium concentration and skeleton mineralization, is also an effective modulator of the immune system. Several studies suggest that immunologic properties attributed to vit D along with vit D receptor (VDR) expression in reproductive tissues may be involved in the pathogenesis of endometriosis.ObjectiveTo systematically review the literature for the association between components of vit D metabolism and endometriosis.Materials and methodsA systematic review of the literature published in the Medline and Cochrane Central databases was conducted for original research articles on humans, published in any language.ResultsTwenty-one studies were included in the systematic review. Among them, 12 examined the relationship of endometriosis with vit D metabolites, eight with vit D-binding protein (VDBP), three with VDR polymorphisms, and two with vit D regulatory enzymes. There are discrepancies between the outcomes of the available literature publications.ConclusionsThis is a systematic attempt to collect, evaluate, and present the known data on the association between vit D and endometriosis. Given the heterogeneity and the diversity of the present studies, more research is required to elucidate the association between vit D and endometriosis.
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Abstract

Background Endometriosis is one of the most common gynecological diseases of reproductive age, with a prevalence of 5–10% and grave consequences for quality of life and fertility. Vitamin D (vit D), a classic regulator of plasma calcium concentration and skeleton mineralization, is also an effective modulator of the immune system. Several studies suggest that immunologic properties attributed to vit D along with vit D receptor (VDR) expression in reproductive tissues may be involved in the pathogenesis of endometriosis.

Objective

To systematically review the literature for the association between components of vit D metabolism and endometriosis.

Materials and methods

A systematic review of the literature published in the Medline and Cochrane Central databases was conducted for original research articles on humans, published in any language.

Results

Twenty-one studies were included in the systematic review. Among them, 12 examined the relationship of endometriosis with vit D metabolites, eight with vit D–binding protein (VDBP), three with VDR polymorphisms, and two with vit D regulatory enzymes. There are discrepancies between the outcomes of the available literature publications.

Conclusions

This is a systematic attempt to collect, evaluate, and present the known data on the association between vit D and endometriosis. Given the heterogeneity and the diversity of the present studies, more research is required to elucidate the association between vit D and endometriosis. Similar content being viewed by others

References

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Rights and permissions About this article Cite this article Kalaitzopoulos, D.R., Lempesis, I., Athanasaki, F. et al. Association between vitamin D and endometriosis: a systematic review. Hormones 19, 109–121 (2020). https://doi.org/10.1007/s42000-019-00166-w Received: Accepted: Published: Version of record: Issue date: DOI: https://doi.org/10.1007/s42000-019-00166-w

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Condition tags

endometriosis

MeSH descriptors

Endometriosis Receptors, Calcitriol Vitamin D Vitamin D-Binding Protein Endometriosis Endometriosis Female Humans Receptors, Calcitriol Receptors, Calcitriol Vitamin D Vitamin D-Binding Protein

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