Objective To study the effect of moxonidine (Mox) on the His bundle electrogram (HBE) of normal rabbits. Methods A total of 24 healthy rabbits were randomly divided into four groups: control group, small dose of Mox (0.1 mg?kg -1), medium dose of Mox (0.3 mg?kg -1) and large dose of Mox (0.9 mg?kg -1). The electrode catheter was inserted from the right carotid artery to record the HBE. The HBE and the synchronism surface ECG were recorded before and after intravenous injection. Results In normal rabbits, the R-R interphase, P-R interphase of the ECG and the H-V interphase of the HBE were prolonged in a dose-dependent manner after intravenous injection of Mox. Mox exerted no significant influence on the A-H interphase. Conclusion ① Mox decreases the heart rate of rabbits in a dose-dependent manner in vivo. ② Mox dose-dependently prolongs the P-R interphase of the surface ECG and the H-V interphase of HBE. This indicates that Mox mainly acts on the intraventricular conducting system.

Multiple markers that related to gastric cancer has been widely used in clinical, to predict its occurrence, development and prognosis. Serum level of fibrinogen (FIB) and neutrophil to lymphocytes ratio (NLR) respectively as representative indicators of coagulation system and inflammation, can predict the prognosis of patients with gastric cancer and survival time. The rise of fibrinogen is associated with enhanced capacity of the gastric tumor cells proliferation, invasion and migration. High NLR is associated with significantly induced survival of patients with gastric cancer. The combination of fibrinogen and NLR (F-NLR) combines the advantages of each individual indicator in predicting the occurrence, development and prognosis of cancer. It has shown a great prognostic potential in gastric cancer, and can be widely applied in prospect.