15837
In contrast , in cases in which a CNS effect is desired , the present results illustrate that synthetic A1 agonists that are transported by hENT1 could be used to target CNS disorders because of enhanced delivery to the brain .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None