6078
Gene expression and chromatin immunoprecipitation ( ChIP ) analyses demonstrated that many important Isl1 - activated genes were coregulated by Ldb1 , including MafA , Arx , insulin , and Glp1r .
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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:
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