TNF and infection: Despite being beneficial in the beginning,persistent anorexia delays recovery and is ultimately deleterious.Microbial products such as bacterial cell wall compounds (e.g.,lipopolysaccharides), microbial nucleic acids (e.g., DNA, RNA),and viral glycoproteins cause the anorexia during infections.Microbial products stimulate the production of proinflamatorycytokines (e.g., ILs, TNF-α).