Low Vitamin D Levels After Kidney Transplant Increase Risk of BK Virus Nephropathy
Author Information
Author(s): Raj Suseela A., Zhou Angela L., Fedorova Ekaterina, Yuan Zhongyu, Mandelbrot Didier A., Astor Brad C., Parajuli Sandesh
Primary Institution: University of Wisconsin School of Medicine and Public Health
Hypothesis
Low 25-hydroxyvitamin D is associated with a greater risk of BK virus progression in kidney transplant recipients.
Conclusion
Low serum 25(OH)D after kidney transplantation is associated with an increased risk of developing BK polyomavirus-associated nephropathy but not BK viremia.
Supporting Evidence
- Nearly 40% of kidney transplant recipients were either vitamin D deficient or insufficient.
- Recipients with low vitamin D levels had a higher incidence of BK polyomavirus-associated nephropathy.
- Vitamin D deficiency was associated with a 3.92-fold higher incidence of BKPyVAN.
Takeaway
If kidney transplant patients have low vitamin D levels, they might get sick from a virus that can harm their kidneys.
Methodology
The study analyzed serum 25(OH)D levels and their association with BKPyV-DNAemia and BKPyVAN in kidney transplant recipients over a 20-year period.
Potential Biases
Potential residual confounding variables were not fully controlled due to the observational design.
Limitations
The study may have selection bias and did not account for variations in vitamin D intake or seasonal changes in vitamin D levels.
Participant Demographics
Participants were adults (≥18 years old) who received kidney transplants, with a mean age of 52.6 years and 20.9% identifying as non-white.
Statistical Information
P-Value
p = 0.22 for BKPyV-DNAemia; p < 0.001 for BKPyVAN
Confidence Interval
95% CI: 1.66–9.23 for BKPyVAN
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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