We seek to define inflammatory markers, lipid and protein profiles that may aid in distinguishing lung cancer cases from those who are healthy and to determine the relationships between these levels and cancer stage and cell type. Lung cancer patients (n
= 140, Group 1) and healthy cases (n
= 50, Group 2) were enrolled. We retrieved platelet, platelet-associated markers (plateletcrit (PCT), mean platelet volume (MPV), platelet distribution width (PDW)), neutrophil/lymphocyte ratio-NLR, platelet/lymphocyte ratio-PLR, lipids (total cholesterol (TC), high density lipoprotein (HDL), low density lipoprotein (LDL), very low density lipoprotein (VLDL), triglycerides), proteins (total protein (TP) and albumin), and C-reactive protein (CRP) from electronic records and compared the data from lung cancer patients with those from healthy controls. Platelet, PCT, neutrophil, NLR, PLR, triglycerides, VLDL, and CRP levels were significantly higher in Group 1 compared with Group 2. MPV, lymphocyte, albumin, and HDL levels were significantly lower in Group 1 compared with Group 2. No significant relationship was evident between histopathological types and the level of any marker. Compared to those with early-stage cancer, changes in marker levels in those with advanced-stage cancer were statistically significant. CRP and NLR were significantly higher; albumin and HDL were lower in metastatic patients. We found that platelet, PCT, NLR and PLR, albumin, HDL, and CRP levels aided in lung cancer diagnosis and the detection of late-stage disease. Furthermore, these inflammatory and biological markers are thought to be particularly useful in following the severity of lung cancer.
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