20117
The G allele in Lys109Arg and Gln223Arg was associated with increased risk of osteoporosis and with differences in serum leptin , soluble leptin receptor , IL - 1 , IL - 6 , and TNF levels compared with the wild - type A allele ( p < 0 . 05 ) .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 None