VDR and congestive heart failure: Between different experimental groups at the same age: for 30 days of age, the relative expression of VDR mRNA in the thoracic vertebrae of the CHF and BPs groups was higher than that of the NC group, and the BPs-H group was significantly higher than the CHF-L group and BPs-M, BPs-L group (p < 0.05), CHF-H group was significantly higher than CHF-L group (p < 0.05).