2875
However , 8 - hydroxycalamenene protected against thinning of the IPL and reduced TUNEL - positive cells in the ganglion cell layer .
 8 - hydroxycalamenene
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 8 - hydroxycalamenene