7053
In an effort to begin to elucidate the molecular mechanisms at play downstream of ephrinB2 over - expression , RT - PCR was performed on the GAMs which revealed no significant changes in runx2 or BMP2 expression but an upregulation of osterix ( Osx ) and Dlx5 expression prompting the belief that the mode of osteogenesis is independent of the BMP2 pathway .
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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