Elevated Vitamin D Receptor Levels in Genetic Hypercalciuric Stone-Forming Rats
Author Information
Author(s): Bai Shaochun, Wang Hongwei, Shen Jikun, Zhou Randal, Bushinsky David A, Favus Murray J
Primary Institution: The University of Chicago Pritzker School of Medicine
Hypothesis
The study aims to elucidate the molecular mechanisms whereby Snail may contribute to the high VDR levels in GHS rats.
Conclusion
Elevated VDR levels in GHS rats likely occur due to reduced Snail binding to the VDR promoter and hyperacetylation of histone H3.
Supporting Evidence
- VDR protein levels were elevated 9.9-fold in jejunum and 6.2-fold in ileum from GHS compared with NC rats.
- Snail mRNA levels in GHS rat duodenum and kidney were decreased significantly.
- Snail binding to the VDR promoter was reduced in GHS compared with normal control intestine.
Takeaway
The study found that a protein called Snail helps control the levels of another protein called VDR, which is important for calcium transport in certain rats.
Methodology
The study involved measuring Snail gene expression and protein levels in relation to VDR in GHS rats and human cell lines, using techniques like real-time PCR and ChIP assays.
Participant Demographics
The study involved genetic hypercalciuric stone-forming rats and human kidney and colon cell lines.
Statistical Information
P-Value
p = .0031
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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