Effect of endotoxin exposure on lung cancer risk in cotton textile mills and agriculture: a meta-analysis

Endotoxin, usually referred to as lipopolysaccharide, is a component of the outer membrane of Gram-negative bacteria (1). During the period of bacteria dissolution, endotoxin is released to develop its biological functions (1). Endotoxin is widespread in indoor and outdoor environments, especially in various workplaces generated amounts of organic dusts (2,3). High endotoxin concentrations are found in several certain occupational settings, such as cotton textile mills, agriculture work, saw industries and so on (2,3)