Intravenous injection of an extract of Ilex kudingcha leaves remarkably lowered the blood pressure of anesthetized dogs. Blood pressure were also lowered when given to unilateral kidney ligated consoious rats or SHR by gastric gavage. When given orally to adult or obesic rats, their abdominal subcutaneous fatty tissue deceased markedly. These results suggested that the extract posses antihypertensive and weight reducing activities, LD5, of the extract in mice was 3.6?0.6g/kg by ip route.

Objective:To analyze the value of serum related cytokines in predicting intestinal mucosal injury in patients with severe acute pancreatitis (SAP) and its correlation with intestinal mucosal injury.Methods:A total of 92 patients with SAP admitted to the First Hospital of Qinhuangdao from January 2020 to December 2021 were included in the study. According to the presence or absence of intestinal mucosal barrier dysfunction, the patients were divided into intestinal mucosal barrier dysfunction group (33 cases) and non-intestinal mucosal barrier dysfunction group (59 cases). Another 100 healthy subjects were selected as the control group. Clinical data of the subjects were collected. Serum levels of procalcitonin (PCT), D-lactic acid (D-L), endotoxin, diamine oxidase (DAO), citrulline and intestinal fatty acid binding protein (I-FABP) of the three groups were compared, and the correlation between the above indexes was analyzed by Pearson correlation analysis. Receiver operating characteristic (ROC) curve was used to analyze the value of each indicator in predicting intestinal mucosal barrier dysfunction in SAP patients.Results:The levels of serum PCT, D-L, endotoxin, DAO and I-FABP in intestinal mucosal barrier dysfunction group, non-intestinal mucosal barrier dysfunction group and control group showed a downward trend, while the level of serum citrulline showed an upward trend, with statistically significant difference (all P<0.05). Pearson correlation analysis showed that serum citrulline was negatively correlated with serum PCT, D-L, and endotoxin levels ( r=-0.740, -0.629, -0.310, all P<0.05); There was a positive correlation between serum DAO and serum PCT, D-L and endotoxin levels ( r=0.482, 0.779, 0.338, all P<0.05); There was a positive correlation between serum I-FABP and serum PCT, D-L and endotoxin levels ( r=0.613, 0.421, 0.341, all P<0.05). The ROC curve results showed that the area under the curve (AUC) of serum PCT, D-L, endotoxin, DAO, citrulline, and I-FABP predicting intestinal mucosal injury in SAP patients were 0.816, 0.789, 0.732, 0.801, 0.812, and 0.857, respectively. The AUC of the combination of the above indicators predicting intestinal mucosal barrier dysfunction in SAP patients was 0.909, significantly higher than that predicted by each index alone (all P<0.05). Conclusions:The occurrence of intestinal mucosal barrier dysfunction in SAP patients may be related to the increase of serum PCT, D-L, endotoxin, DAO, I-FABP levels and the decrease of citrulline levels. It may be considered to predict the risk of intestinal mucosal injury by detecting the levels of various indicators in patients′ serum.