Although not related to pulmonary inflammation, Huang et al., through a research to explore the applicative value of preoperative NLR combined with serum carcinoembryonic antigen (CEA), carbohydrate antigen (CA) 19-9, CA 125 and CA 72-4 levels, proved that NLR can reflect the inflammatory and immune status in gastric cancer patients and that, these combinations are closely related to clinical pTNM stage in gastric cancer (330). This evidence concerns the gene CEACAM5 and gastric cancer.