16541
Moreover , [ 6 ] - shogaol counteracted the reduced expression of ERK1 / 2 in H ( 2 ) O ( 2 ) - treated astrocytes and protected these cells from oxidative stress and apoptosis by attenuating the impairment of mitochondrial function proteins such as Bcl - 2 and Bcl - xL .
 Chemical: [ 6 ] - shogaol; Chemical: H ( 2 ) O ( 2 )
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: [ 6 ] - shogaol; Chemical: H ( 2 ) O ( 2 )