2116
Female ER alpha ( - / - ) mice displayed a severely reduced osteogenic response to loading with changes in cortical area ( - 78 % +/- 15 % , p < 0 . 01 ) and periosteal BFR ( - 81 % +/- 9 % , p < 0 . 01 ) being significantly lower than in wild - type ( WT ) mice .
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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