1401
There were statistically significant ( p < 0 . 05 ) decreases in MEK1 , Erk2p , GSK3alpha , 14 - 3 - 3e , and MEK7 in the striata of mice after multiple injections of METH .
 Chemical: METH
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: METH