Is it necessary to diagnose and correct vitamin D deficiency in malignant neoplasms? Analytical review

Abstract

BACKGROUND: Although the critical role of vitamin D in mineral homeostasis regulation is widely recognized, the global prevalence of vitamin D deficiency is exceedingly high. The substantial number of population-based studies that examine the correlation between the concentration of circulating vitamin D levels and the risk of developing cancer may be attributed to the growing interest of researchers in this vitamin as a suppressor of proliferating epithelial cells. However, the data collected are contradictory.

AIM: To ascertain the necessity of diagnosing and rectifying vitamin D deficiency in cancer patients.

MATERIALS AND METHODS: The keywords “vitamin D,” “vitamin D deficiency,” “cancer,” and “survival” were employed to identify publications in the e-Library, PubMed, and ScienceDirect databases from January 2014 to January 2024. Based on the data obtained, an analytical review of the literature was conducted.

RESULTS: The global prevalence of vitamin D deficiency, including among cancer patients, is exceedingly high and does not vary by sex, age, or ethnicity. Decreased serum vitamin D levels are linked to an elevated incidence of colorectal cancer, breast cancer, melanoma, prostate, and pancreatic cancer. Addressing vitamin D deficiency helped mitigate the risk of developing breast cancer. Data on the effect of vitamin D deficiency and its correction on patient survival are inconsistent.

CONCLUSION: Currently, there is no consensus regarding the impact of vitamin D supplementation on the incidence of diverse malignancies, as well as tumor-specific and overall survival. Additional research is required to address the necessity of diagnosing and correcting vitamin D deficiency.

Keywords

vitamin D / vitamin D deficiency / cancer / survival

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