18316
Moreover , exendin - 4 decreased urinary DPD / creatinine ratio and serum CTX - I and increased serum ALP , OC and P1NP levels , key biochemical markers of bone turnover .
 Chemical: creatinine
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: creatinine 
Answer:
 Chemical: creatinine