IL6 and congestive heart failure: While the N-terminal pro-Brain Natriuretic Peptide (NT-proBNP) and interleukin-6 (IL-6) levels were significantly higher, the levels of alanine aminotransferase (ALT), total cholesterol, low-density lipoprotein (LDL) cholesterol, and high-density lipoprotein (HDL) cholesterol, as well as leukocytes, and platelets were significantly lower in patients with worsening of CHF compared to de novo AHF patients (Table 2).