Correlation Study of Monocyte to HDL-C Ratio and Post-operative Slow flow or No reflow in Acute Myocardial Infarction Patients After Percutaneous Coronary Intervention / 中国循环杂志

Objective: To explore the correlation of monocyte to HDL-C ratio (MHR) and post-operative slow lfow or no relfow in patients with ST-segment elevation myocardial infarction (STEMI) after percutaneous coronary intervention (PCI). Methods: A total of 216 STEMI patients treated in our hospital from 2014-10 to 2016-05 were enrolled. The patients were divided into 2 groups: Slow lfow or no relfow group, the patients with TIMI grade≤2,n=43 and Normal lfow group, n=173. Receiver operating characteristic (ROC) curve was performed to assess the best cut-off value for MHR predicting slow lfow or no relfow with its sensitivity and speciifcity; Logistic regression analysis was conducted to studied weather MHR could be used as an independent risk factor for coronary slow lfow or no relfow in STEMI patients after PCI. Results: Compared with Normal lfow group, Slow lfow or no relfow group had the higher MHR (18.6±9.8) vs (10.9±5.5), P<0.001. Univariate Regression analysis indicated that MHR was a risk factor of slow lfow or no relfow occurrence (OR=2.22, 95% CI 1.58-3.28); multivariate regression analysis presented that MHR was an independent risk factor of slow lfow or no relfow occurrence (OR=1.55, 95% CI 1.01-2.38). ROC curve showed that the best cut-off value for MHR predicting slow lfow or no relfow occurrence was 13.37 with the sensitivity and speciifcity at 67.4% and 70.5% respectively, the area under curve (AUC) was 0.734, 95% CI 0.646-0.822. Conclusion: MHR was an independent risk factor for slow lfow or no relfow occurrence in STEMI patients after PCI.

Higher Plants Resources and Community Structure in Tea Mountain of Shandong Province, China / 现代生物医学进展

Objective: The research is to provide the basis for effective protection and wise utilization of the plants resources inTea Mountain National Ecological Demonstration Area of Shandong Province. Methods: The general investigation on plant species inTea Mountain was conducted. The research scope covered plant species, their distribution in wild, community structure and flora.Results: A total of 352 higher plants, belonging to 250 genera and 90 families, were recorded. Four species were listed as nationalsecond-grade protected plants. Regional vegetation is Pinus thunbergii plantation and Secondary forest. The main forest vegetation isPinus thunbergii community. Pantropic types and N. Tem types are dominant types. The latitude and the islands-effect should be themajor-effect factor of this pattern. Because of intense artificial active disturbance, primary vegetation types in this region have sufferedserious destruction, especially the rare and precious plants that are at high risk of dying out. Conclusions: This regional communitystructure is simple. The shrub layer and the liana layer are undeveloped. The syngenesis time is short.