| Chronic infectious diseases of the mouth i.e. apical and margical periodontitis are induced by indigenous oral microorganism of which Gram-negative anaerobic bacteria play an important pathogenic role. Endotoxin, Chemically termed Lipopolysaccharidc(LPS), of Gram-negative anaerobe has been recently recognized as a main factor being responsible for the infections, therefore, Physico-Chemical Characterization and biological activities of LPS isolated from oral anaerobe dealt with in this study may be helpful for the elucidation of the pathogenicity of the endotoxin... |