“…Certain studies (19)(20)(21)(22)(23)(24) have reported the impact of RE, such as on the distribution characteristics of intestinal ora, and signi cant changes in fecal metabolites are closely related to the severity of RE during RT. In the past 10 years, research has focused on the in ammatory markers of complete blood count (CBC)-derived parameters such as neutrophils (N), monocytes (M), lymphocytes (L), platelets (PLT), albumin (ALB), hemoglobin (Hb), platelet-to-lymphocyte ratio (PLR), neutrophil-to-lymphocyte ratio (NLR), lymphocyte-to-monocyte ratio (LMR), and systemic immune-in ammation index (SII), which have predictive effects on the survival and prognosis of malignant tumors, such as CC (25), gastric cancer (26), breast cancer (27)(28)(29), lung cancer (30,31), rectal cancer (32), ovarian cancer (33), bladder cancer (34), neurological diseases (35), and oral cancer (36). Multiple lines of evidence have suggested that RE is an in ammatory reaction (37)(38)(39)(40)(41).…”