TNFRSF11B and congestive heart failure: In the same experimental group at different ages: the relative expression of OPG mRNA in the thoracic vertebra tissue of the CHF, BPs-H, and BPs-M groups at 30 days of age was higher than that of 60 days of age, and the CHF-M group at 30 days of age was significantly higher than that at 60 days of age.