TNF and congestive heart failure: The same experimental group between different days and ages: the relative expression of TNF-α mRNA in the 30-day-old leg cartilage tissue of the CHF group and BPs-H group was lower than that of the 60-day-old group, and the CHF-H and CHF-M groups were significantly lower than the 60-day-old group (p < 0.05).