3393
Moreover , AT2R gene and protein expressions in fetal kidneys were inhibited by PCE , associated with the repression of the gene expression of glial - cell - line - derived neurotrophic factor ( GDNF ) / tyrosine kinase receptor ( c - Ret ) signaling pathway .
 Chemical: tyrosine
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: tyrosine