Faecal Endotoxin in Human Volunteers: Normal Values

This paper presents a study measuring endotoxin levels in faeces of healthy adults using the Limulus amoebocyte lysate (LAL) microassay. Data showed mean faecal endotoxin levels of 1 mg (range 0.01-100 mg) per gram of faeces. No correlation was found with the concentration of Enterobacteriaceae in faeces and free Faecal endotoxin levels. Keywords: Endotoxin; LAL micro-assay; LPS; Faeccs; Human volunteers: Enterobacteriaceae.