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Moreover , being involved in different mechanisms which concur in counteracting inflammation , such as down - regulation of inflammation - associated genes and improvement of colonic mucosa conditions , probiotics have the potentiality to be involved in the promotion of longevity .
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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