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We report here for the first time that rottlerin possesses anti - allergic activity by blocking IgE - induced mast cell degranulation , providing a foundation for developing rottlerin for the treatment of allergic asthma and other mast cell - mediated allergic disorders .
 Chemical: rottlerin; Chemical: rottlerin
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: rottlerin; Chemical: rottlerin