부산대학교 도서관

Bai Yi Song1 *, Chen Chen2 *, Wen Hu Xu,1 Bai Lin Cong,3 Zheng Yi Guo,1 Zai Hao Zhao,4 Lan Cui,1 Yin Hua Zhang1,4,5 1Cardiovascular Medicine Department, Yanbian University Hospital, Yanji, 133000, People’s Republic of China; 2Department of Emergency Medicine, Yanbian University Hospital, Yanji, 133000, People’s Republic of China; 3Cardiovascular Medicine Department, Jilin City Central Hospital, Jilin, 132011, People’s Republic of China; 4Research Center, Yanbian University Hospital, Yanji, 133000, People’s Republic of China; 5Department of Physiology & Biomedical Sciences, Ischemic/Hypoxic Disease Institute, Seoul National University, College of Medicine, Seoul, 03080, Republic of Korea*These authors contributed equally to this workCorrespondence: Yin Hua Zhang; Lan Cui, Yanbian University Hospital, Yanji, 133000, People’s Republic of China, Tel +86 433 2660129, Email yinzhang87@gmail.com; lancui@ybu.edu.cnBackground: There are clear gender differences in the pathological process and outcome in acute myocardial infarction (AMI) patients but inflammatory responses remain clarified. Here, we aimed to analyse the correlations between inflammatory cells and organ injury parameters in AMI patients and compared between male and female groups.Methods: A total of 603 AMI patients who underwent percutaneous coronary intervention (PCI) within 24 hours of the onset were analysed retrospectively. Basic information and hematological parameters detected 6 hours before the PCI were collected, neutrophil-to-lymphocyte ratio (NLR) and monocyte-to-lymphocyte ratio (MLR) were calculated. Renal, liver function indicators, and myocardial enzymes were measured. Left ventricular ejection fraction (EF) and fractional shortening (FS) on days 5– 7 after PCI were obtained. Western blot was performed to detect iNOS, eNOS and nNOS expression in H9C2 rat cardiomyocytes treated with IL-6 with and without estrogen and testosterone.Results: WBC, NEU, MON, MLR, CK, ALT and CREA of male patients were significantly higher than females, but FS was lower in females. NEU, MON and MLR were positively correlated with CK, CK-MB, AST, and ALT in males, whereas LYM were correlated with these parameters in female. NEU and NLR were inversely correlated with EF or FS only in female. Estrogen and testosterone reduced IL-6-induced iNOS protein expression in H9C2 cardiomyocytes, estrogen enhanced IL-6-induced nNOS protein expression.Conclusion: NEU, MON, MLR in male AMI patients, and LYM in female patients were associated with organ injury parameters. Estrogen regulation of nitric oxide pathway may mediate the protective effects in female.Keywords: acute myocardial infarction, gender differences, immune cells, renal function indicators, liver function indicators, nitric oxide synthases