14770
RESULTS : HDMVEC viability and proliferation increased after cysteamine exposure 0 . 03 - 3 . 0 mM ( p < 0 . 01 ) and 0 . 03 - 1 . 0 mM ( p = 0 . 01 ) respectively ; cell viability in fibroblasts was not affected by incubation with cysteamine .
 cysteamine, cysteamine
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 cysteamine, cysteamine