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Mechanisms through which periodontal disease increases the risk of nonalcoholic fatty liver disease (NAFLD)/nonalcoholic steatohepatitis (NASH). LPS, lipopolysaccharide; TNF‐α, tumor necrosis factor alpha; IL‐6, interleukin 6; ROS, reactive oxygen species; FFA, free fatty acids; TLR, toll‐like receptor; PAR2, protease activated receptor 2; TGF‐β, transforming growth factor beta
