Correlation between the NRS-2002 score and PD-1/CTLA-4 levels in patients with CAP

ObjectiveTo investigated the relationship between nutritional status and PD-1/CTLA-4 in CAP patients to determine whether the nutritional status is associated with the immunosuppression generated by T cells. MethodsAccording the enrollment strategy, we enrolled 60 patients and collected their medical records.Take their blood samples and analyzed the distribution of PD-1 and CTLA-4 in different T cell subgroups. ResultsThe level of PD-1 and CTLA-4 in the CD4+, CD8+ and Tregs were inclusive with the SCAP occurrence, mortality and PSI score.The malnutrition risk group suffered higher percentage of SAP, longer hospital-stay days and higher mortality when compared with the no-risk group.The higher the PD-1/CTLA-4 levels were, the higher the NRS-2002 score was. ConclusionA high NRS-2002 score may increase the length of hospital stay and the occurrence of SCAP. Higher PD-1 and CTLA-4 levels were associated with a higher PSI grade. Nutritional status influenced the occurrence of immunosuppression. Malnutrition status may increase the risk of immunosuppression, which is regulated by PD-1 and CTLA-4.