12123
We conclude that the low levels of serum 1,25(OH)2D3 of uremia are not responsible for the decrease in VDR concentration found in these patients .
 ( protein: VDR, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( protein: VDR, None) 