Objective To establish a HPLC method for determination of Chlorogenic acid in Liyan Granule. Method The determination was performed on Diamondsil Cl8 (4.6 mm?150 mm, 5 ?m) with mobile phase consisted of acetonitrile-0.4% phosphonic acid solution (13∶87) at a flow rate of 1.0 mL/min. The detective wavelength was set at 327 nm. Result The linear range of Chlorogenic acid was 0.026～0.26 ?g (r =0.999 9) and the average recovery rate of Chlorogenic acid was 101.84% (RSD=0.48%, n =6). Conclusion This method is simple, accurate and with good stabilization, and suitable for the quality control of Liyan gramule.

Objective To evaluate the value of hyperbaric oxygen treatment on patients with traumatic brain injury and to explore the possibility of C-reactive protein(CRP) as a index for estimating the effect of hyperbaric oxygen treatment on patients with traumatic brain injury.Methods 70 patients with traumatic brain injury were divided into two groups by randomization:hyperbaric oxygen treatment group(group A) and control group(group B).The recovery of patients was evaluated with Glasgow Coma Scale(GCS),while the content of serum CRP in 70 patients was measured before and after a course of treatment.Results ⑴After a course of treatment,GCS of group A was (11 9?1 7) scores,while GCS of group B was(10 7?2 0) scores,there was significantly difference between two groups(P

To observe the effects of Feiyanning (FYN) formula, a compound traditional Chinese herbal medicine, on the expressions of CXCL12 and CXC chemokine receptor 4 (CXCR4) mRNAs and proteins in Lewis tumors in C57 mice.

Objective:To investigate the predicting value of European system for cardiac operative risk evaluation ( EuroSCORE ) and sino system for coronary operative risk evaluation ( SinoSCORE ) in early quality of life of patients after coronary artery bypass surgery (CABG).Methods:A total of 218 consecu-tive patients who underwent CABG from March 2010 to January 2013 were evaluated with both systems before operation .Health related quality of life ( QoL) was estimated by using 36-item short form health survey ( SF-36) preoperatively and postoperatively in order to evaluate the predicting value of the two sys -tems in early post-operative QoL.Calibration was evaluated by Hosmer-l,emeshow goodness-of-fit test. Discrimination was tested by determining the area under the receiver operating characteristic ( ROC ) curve .Results:There was no significant difference between the accumulation of the EuroSCORE and SinoSCORE in the all patients (t=-0.904, P=0.368), When using Wilcoxon test on life quality in the preoperative and postoperative patients respectively ,the data showed that the quality of life improved significantly in various dimensions of the postoperative patients (Z=-2.886, P<0.001).Except for bodily pain (BP) and mental health (MH), statistically significant correlation was found between the preoperative risk evaluation scores and the postoperative QoL scores (r:-0.203 to -0.493, P<0.05). Logistic regression analyses indicated that both the scores emerged as the independent predictor for a relatively worse QoL ( OR>1 , P<0 .05 ) .Furthermore , the EuroSCORE predicted the outcome with a higher OR.For SinoSCORE the Hosmer-Lemeshow test was significant (P=0.628) and the area under ROC curve was 0.754.For the EuroSCORE the Hosmer-Lemeshow test was significant (P=0.538) and the area under ROC curve was 0.854.Conclusion:Both EuroSCORE and SinoSCORE could be viewed as a predictor for several aspects of postoperative QoL , while EuroSCORE might have a greater predicting value.

Objective To investigate the risk factors of hepatitis B virus (HBV) reactivation after microwave ablation (MWA) and its prevention.Methods 72 patients who met the inclusion criteria were enrolled into the study.30 patients were in the control group and 42 patients in the prophylactic antivirus group.Results 8.3％ (6/72) patients developed HBV reactivation.A high HBV DNA load and no prophylactic antivirus therapy were independent risk factors of viral reactivation.Conclusion Prophylactic antivirus therapy can prevent HBV reactivation.

Objective:To assess the feasibility and safety of 2-staged hybrid technique for treating coronary artery disease (CAD) patients with multi-vessel lesions.
Methods: Our research included 2 groups:Hybrid group, CAD patients with left anterior descending artery (LAD) lesion or with other major epicardial vessel stenosis>70%who received 2-staged hybrid treatment in our hospital from 2012-03 to 2015-03 and Control group, CAD patients received elective conventional off-pump coronary artery bypass (OPCAB) by the same surgeon at meanwhile. n=91 in each group. The peri-operative conditions and complications were compared between two groups.
Results: Compared with Control group, Hybrid group had the shorter post-operative mechanical ventilation time (7.9 ± 4.8) h vs (21.6 ± 35.9) h, shorter ICU-stay time (29.6 ± 20.8) h vs (47.5 ± 38.3) h, all P<0.01 and less peri-operative blood transfusion (0.59 ± 1.48) U vs (2.82 ± 3.81) U, P<0.01. The post-operative complications of mortality, MI occurrence and delayed wound healing were similar between 2 groups, P>0.05.
Conclusion:2-staged hybrid technique is a safe, feasible and minimally invasive technique for treating CAD patients with LAD and multi-vessel lesions.

To explore the dual regulatory effects of Shuanghuang Shengbai Granule, a compound traditional Chinese herbal medicine, on cell cycle in Lewis-bearing mice with chemotherapy-induced myelosuppression.

The purpose of this study is to develop glipizide push-pull osmotic pump (PPOP) tablets by using a formulation design expert system and an artificial neural network (ANN). Firstly, the expert system for the formulation design of osmotic pump of poor water-soluble drug was employed to design the formulation of glipizide PPOP, taking the dissolution test results of Glucotrol XL as the goal. Then glipizide PPOP was prepared according to the designed formulations and the in vitro dissolution was carried out. And in vivo evaluation was carried out between the samples which were similar to Glucotrol XL and the Glucotrol XL in Beagle dogs. The range of the factors of formulation and procedure, which could influence the drug release, was optimized using artificial neural network. Finally, the design space was found. It was found that the target formulation which was similar to Glucotrol XL in dissolution test could be obtained in a short period by using the expert system. The samples which were similar to Glucotrol XL were bio-equivalent to the Glucotrol XL in Beagle dogs. The design space of the key parameter coating weight gain was 9.5%-12.0%. It could be concluded that a well controlled product of glipizide PPOP was developed since the dissolution test standard of our product was more strict than that of Glucotrol XL.
Animals ; Area Under Curve ; Delayed-Action Preparations ; Dogs ; Drug Compounding ; methods ; Drug Delivery Systems ; Drug Design ; Expert Systems ; Female ; Glipizide ; administration & dosage ; chemistry ; pharmacokinetics ; Hypoglycemic Agents ; administration & dosage ; chemistry ; pharmacokinetics ; Male ; Neural Networks (Computer) ; Osmosis ; Polyethylene Glycols ; chemistry ; Random Allocation ; Sodium Chloride ; chemistry ; Solubility ; Tablets

Objective:To investigate the clinical efficacy of manual reduction under general anesthesia combined with anterior cervical discectomy and fusion (ACDF) in the treatment of lower cervical locked facet dislocation.Methods:Retrospectively analyzed were the data of 53 patients with traumatic single segment dislocation of lower cervical spine combined with single/bilateral facet articular lock who had been admitted to Department of Orthopaedic Spine Surgery, Xiangya Hospital, Central South University from January 2019 to December 2020. There were 36 males and 17 females, aged from 18 to 64 years (average, 45.5 years). All the patients were treated with ACDF under neuroelectrophysiological monitoring. Clinical efficacy was assessed by observing complications and comparing American Spinal Injury Association (ASIA) grading, Modified Japanese Orthopaedic Association (mJOA) scores, neck disability index (NDI) and visual analogue scale (VAS) before and after surgery.Results:All patients were followed up for 16 to 30 months (mean, 24 months). All incisions healed by primary intention with no infection after operation. There were 2 cases of delirium, 9 cases of abdominal distension, 4 cases of lower extremity venous thrombosis, and one case of central diabetes insipidus. Postoperative imaging data showed that all patients achieved sequential reduction of the cervical spine, intervertebral bony fusion, and no internal fixation loosening. The last follow-up showed that the overall improvement rate of ASIA grading of spinal cord function was 84.9% (45/53) compared with the preoperation and that the VAS score (2.0±0.5), mJOA score (13.1±3.1) and NDI index (16.6±5.9) were significantly improved compared with the preoperative values (7.5±1.5, 6.9±3.5, and 37.8±7.8) ( P< 0.05). Conclusion:On the premise of fully assessing the patient's injury status, manual reduction under general anesthesia combined with ACDF is a safe and effective treatment of single-level lower cervical fracture combined with facet dislocation.

Objective:To compare the performances of different time series models in predicting COVID-19 in different countries.Methods:We collected the daily confirmed case numbers of COVID-19 in the USA, India, and Brazil from April 1 to September 30, 2020, and then constructed an autoregressive integrated moving average (ARIMA) model and a recurrent neural network (RNN) model, respectively. We applied the mean absolute percentage error (MAPE) and root mean square error (RMSE) to compare the performances of the two models in predicting the case numbers from September 21 to September 30, 2020.Results:For the ARIMA models applied in the USA, India, and Brazil, the MAPEs were 13.18%, 9.18%, and 17.30%, respectively, and the RMSEs were 6 542.32, 8 069.50, and 3 954.59, respectively. For the RNN models applied in the USA, India, and Brazil, the MAPEs were 15.27%, 7.23% and 26.02%, respectively, and the RMSEs were 6 877.71, 6 457.07, and 5 950.88, respectively.Conclusions:The performance of the prediction models varied with country. The ARIMA model had a better prediction performance for COVID-19 in the USA and Brazil, while the RNN model was more suitable in India.