317
While BV / TV , Conn . D , SMI , Tb . N , and Tb . Sp showed continuous changes in the same direction throughout the experiment , Tb . Th initially decreased significantly until 4 weeks after OVX and then increased again until after 16 weeks Tb . Th was significantly higher than in the control group .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 None