Efficacy and safety of Xuefu Zhuyu decoction combined with Western medicine for angina pectoris in coronary heart disease: A protocol for systematic review and meta-analysis.

BACKGROUND: Angina pectoris in coronary heart disease (CHD) is a common ischemic heart disease clinically. During the onset, patients often have symptoms such as chest discomfort or paroxysmal crushing pain in the posterior sternum, which seriously affects the quality of life of patients, and even can lead to myocardial infarction and endanger the lives of patients. Clinical studies have shown that the compound Chinese prescription Xuefu Zhuyu decoction combined with western medicine has a certain therapeutic effect on angina pectoris in CHD, but lack of evidence of evidence-based medicine. The purpose of this study is to evaluate the efficacy and safety of Xuefu Zhuyu decoction combined with western medicine in the treatment of angina pectoris in CHD. METHODS: Use computer to retrieve English databases (PubMed, Embase, Web of Science, the Cochrane Library) and Chinese databases (CNKI, Wan Fang, VIP, Chinese biomedical database), from the establishment of database to October 2020, for randomized controlled trials (RCTs) of Xuefu Zhuyu decoction combined with Western medicine for angina pectoris in CHD. Two investigators independently conducted data extraction and assessed the literature quality of the included studies. The Revman5.3 software was used for meta-analysis of the included literatures. RESULTS: The efficacy and safety of Xuefu Zhuyu decoction combined with western medicine in the treatment of angina pectoris in CHD were evaluated by total effective rate, angina pectoris pain score, TCM syndrome score, electrocardiogram effect, hemorheology index (including whole blood viscosity, plasma viscosity, hematocrit, and fibrinogen), and the incidence of adverse reactions. CONCLUSION: This study will provide reliable evidence-based evidence for the clinical application of Xuefu Zhuyu decoction combined with western medicine in the treatment of angina pectoris in CHD. ETHICS AND DISSEMINATION: Private information from individuals will not be published. This systematic review also does not involve endangering participant rights. Ethical approval was not required. The results may be published in a peer-reviewed journal or disseminated at relevant conferences. OSF REGISTRATION NUMBER: DOI 10.17605 / OSF.IO / GFEQ7.

Modified Disk-Up Sinus Reamer for Sinus Floor Elevation and Simultaneous Implant Placement: An Animal Study with Miniature Pigs.

Objective: The disk-up sinus reamer (DSR) is a modified instrument used to elevate the maxillary sinus floor. This study aimed to compare the effects of modified DSR sinus floor elevation (DSFE) with osteotome sinus floor elevation (OSFE), both with simultaneous implant placement. Methods: Twelve miniature pigs were treated with DSFE on one side and OSFE on the other. Implants 9 mm in length were placed in six pigs without grafting, while implants 11 mm in length were placed in the other six pigs with grafting. After submerged healing for 3 months, vertical bone gain (VBG), general and histological observation, and bone contact ratio (BCR) were analyzed. Results: The mean maxillary residual bone height (RBH) when implants were placed was 6.45 ± 0.36 mm. In the no-grafting group, DSFE and OSFE had a similar VBG after 3 months. The grafting group with DSFE recorded a significantly higher VBG (VBG0: 7.83 ± 0.44 mm, VBG1: 7.54 ± 0.40 mm) than the graft group with OSFE (VBG0: 5.45 ± 0.56 mm, VBG1: 4.34 ± 2.15 mm) (p < 0.05). One implant became loose and the sinus mucosa of three pigs appeared metallic in color on the control side (OSFE). Conclusions: The effect of OSFE and DSFE is similar when there is no need for grafting. DSFE seems a better alternative method for sinus floor elevation with grafting when more VBG is needed.

[Impact of intrauterine infection on long-term brain development of premature rats].

OBJECTIVE: To investigate the impact of intrauterine infection induced by LPS injection on long-term brain development of premature rats. METHODS: Eighteen day-gestation pregnant rats were randomly assigned to a control group receiving an intraperitoneal injection of normal saline, and two infection groups that were intraperitoneally injected with 0.3 mg/kg or 0.6 mg/kg LPS. Twenty-four hours after injection, 7 pregnant rats of each group were sacrificed. The pathological changes of the placenta after hematoxylin and eosin staining were observed under a light microscope. The neural cell apoptosis of fetal brains was examined by the TUNEL assay. The remained pregnant rats were induced to labour before 21 gestation days. The long-term brain development of premature rats was tested with the Y type electric maze on postnatal day 42. RESULTS: Obvious pathological changes were observed in the placenta in the infection groups. The apoptotic neural cells in the fetal brain increased in the infection groups compared with that in the control group (32.41+/-5.36 in the 0.3 mg/kg infection group and 66.41+/-7.61 in the 0.6 mg/kg infection group vs 8.00+/-0.36 in the control group; P<0.01). The number of trials to criterion in the Y type maze test in the infection groups was much more than that in the control group [117.8+/-8.7 (0.3 mg/kg infection group) and 194.4+/-13.7 (0.6 mg/kg infection group) vs 56.8+/-3.7 (control group); P<0.01]. The number of correct reactions in memory retaining in the infection groups was lower than that in the control group (0.62+/-0.09 in the 0.3 mg/kg infection group and 0.37+/-0.09 in the 0.6 mg/kg infection group vs 0.92+/-0.06 in the control group; P<0.05). CONCLUSIONS: Intrauterine infection can cause fetal rats' neural cell apoptosis and affect adversely long-term brain development of neonatal rats.