2586
In addition , crocin in the mentioned dose could significantly attenuated learning and memory impairment in treated STZ - injected group in passive avoidance test .
 Chemical: crocin; Disease: learning and memory impairment; Chemical: STZ
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: crocin; Disease: learning and memory impairment; Chemical: STZ