25872
In multiple UVB irradiations , BM increased NO formation and total ERK 1 / 2 activity and reduced iNOS activity and nitrotyrosine levels , inhibited cell proliferation , diminished p53 and caspase - 3 immunoreactivities and increased the percentage of Bcl - 2 positive cells .
 Chemical: NO; Chemical: nitrotyrosine
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: NO; Chemical: nitrotyrosine