12114
A reduced expression of the vitamin D receptor (VDR) in parathyroid glands of uremic animals and humans has been observed.
 ( protein: vitamin D receptor, 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: vitamin D receptor, None) 