passages.id: split_9_validation_167_passage
passages.type: progene_text
passages.text: The capacity of blood cells in a whole blood culture to produce IL-1beta , IL-6 , TNF-alpha , IL-12 , IL-18 , and IL-1 receptor antagonist ( IL-1Ra ) in response to lipopolysaccharide ( LPS ) appeared to be similar for heterozygous FH patients and healthy volunteers .