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Vitamin D and plasma cell dyscrasias: reviewing the significance
Nicholas Burwick1,2,3
1VA Puget Sound Health Care System, Seattle, WA, USA. nburwick@u.washington.edu.
Abstract:
Monoclonal gammopathy of undetermined significance (MGUS) is a clonal plasma cell disorder and precursor disease to multiple myeloma and other related cancers. While MGUS is considered a benign disorder, with a low risk of disease progression, patients have altered bone microarchitecture and an increased risk of bone fracture. In addition, alterations in immune function are regularly found to correlate with disease activity. Vitamin D, an important hormone for bone and immune health, is commonly deficient in multiple myeloma patients. However, vitamin D deficiency is also prevalent in the general population. The purpose of this review is to highlight the current understanding of vitamin D in health and disease and to parallel this with a review of the abnormalities found in plasma cell dyscrasias. While some consensus statements have advocated for vitamin D testing and routine supplementation in MGUS, there is no clear standard of care approach and clinical practice patterns vary. Further research is needed to better understand how vitamin D influences outcomes in MGUS patients.
Insights
Monoclonal gammopathy of undetermined significance (MGUS) patients may benefit from vitamin D assessment. Understanding vitamin D
Area of Science:
- Hematology
- Endocrinology
- Bone Biology
Background:
- Monoclonal gammopathy of undetermined significance (MGUS) is a precursor to multiple myeloma.
- MGUS patients exhibit bone microarchitecture abnormalities and increased fracture risk.
- Immune function alterations are linked to disease activity in MGUS.
Purpose of the Study:
- To review current knowledge of vitamin D in health and disease.
- To examine vitamin D status in plasma cell dyscrasias, including MGUS.
- To discuss the role of vitamin D in MGUS patient outcomes.
Main Methods:
- Literature review of vitamin D's role in bone and immune health.
- Analysis of studies on vitamin D deficiency in MGUS and multiple myeloma.
- Synthesis of current recommendations and clinical practice variations for vitamin D in MGUS.
Main Results:
- Vitamin D deficiency is common in multiple myeloma and prevalent in the general population.
- While some advocate for vitamin D testing and supplementation in MGUS, no standard care exists.
- Clinical practice patterns for vitamin D management in MGUS are inconsistent.
Conclusions:
- Further research is essential to clarify vitamin D's influence on MGUS outcomes.
- Establishing a clear standard of care for vitamin D in MGUS is needed.
- Vitamin D's impact on bone health and immune function in MGUS warrants investigation.
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