TNFRSF11A and congestive heart failure: In the same experimental group at different ages: the relative expression of RANK mRNA in thoracic vertebra tissue at 30 days of age in both the CHF and BPs groups was lower than that at 60 days of age, and the CHF-H group and the BPs-H and BPs-L groups were significantly lower at 30 days of age than at 60 days of age (p < 0.05).