5772
Rather , in the presence of PTH , sEphB4 treatment significantly increased osteoclast formation , an effect that prevented the anabolic effect of PTH , causing instead a decrease in trabecular number .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None