OBJECTIVE: To establish a quantitative preliminary evaluation of introduced drugs. METHODS: A quantitative form was designed for new drugs’ preliminary evaluation, which included many factors, such as qualification of pharmaceutical factory or company, category of drugs in medical insurance, the result of the biding drugs, comparison with other drugs of the same category, PK and PD data,special use and clinical demand. Each factor was given a definite score .If the total scores of a given drug amounted to the expected figure, this drug could pass the preliminary evaluation and enter the next step, and if not, the drug may be eliminated. RESULTS&CONCLUSION: The purpose of evaluating the new drugs scientifically and objectively can be basically achieved through quantitative method, which can lessen the blindness in introduction of new drugs.

BACKGROUND:Shengji Yuhong col agen showed good curative effect of promoting angiogenesis and tissue healing compared with Shengji Yuhong Gao and col agen alone or gelatin alone.
OBJECTIVE:To explore the curative effect and mechanism of subcutaneous implantation of Shengji Yuhong col agen in rabbits in promoting angiogenesis and repair.
METHODS:Shengji Yuhong col agen as the experimental group and collagen as the control group was implanted inside the rabbit subcutaneous pockets of the back of New Zealand rabbits. The implanted samples and
surrounding tissues were obtained at 3, 7, 14, 28 and 56 days fol owing surgery. Pathological sections were made and the repair of surrounding tissue was observed. Hemoglobin levels in col agen were measured.
Immunofluorescence and CD34 dyeing marking method were utilized to observe capil ary angiogenesis. Western blot assay was employed to examine vascular endothelial growth factor and angiogenin-1 expression.
Immunohistochemistry was used to observe the secretion of typeⅠ and Ⅲ col agen on the surrounding tissues.
RESULTS AND CONCLUSION:The experimental group showed increased subcutaneous vascularization. There were reduced inflammatory exudation, granulation tissue hyperplasia, and mature fiber connective tissue at 28 days.
Angiogenesis and hemoglobin contents were greater in the experimental group than in the control group (P<0.05 or P<0.01). At 3 and 7 days fol owing surgery, vascular endothelial growth factor and angiogenin-1 expression was greater in the experimental group than that in the control group (P<0.05 or P<0.01). The secretion of type Ⅰ col agen was
identical between the experimental and control groups. However, the secretion of type Ⅲ col agen was higher in the experimental group than in the control group at 28 and 56 days (P<0.05), and the proportion of type Ⅰ and Ⅲ
col agen was lower in the experimental group than in the control group at 28 and 56 days (P<0.01). These suggested that Shengji Yuhong col agen can significantly promote angiogenesis in the surrounding tissues with the possible
mechanisms of adjusting the protein expression of vascular endothelial growth factor and angiogenin-1. At the same time, it has the function of regulating col agen formation with better ratio of typeⅠ and type Ⅲ col agen to acquire higher
quality of wound healing with reduced scar formation.

ObjectiveTo observe the hong-huang antioxidant on oxidative stress in patients with breast cancer during chemotherapy, including their related blood indexes, blood rheology changes, and the effects on TCM clinical symptoms and symptoms of stress.MethodsA total of 60 cases of breast cancer patients during chemotherapy from Jiangsu Province Hospital of TCM was randomly divided into treatment group and control group, 30 cases in each group. On the basis of conventional therapy, patients in treatment group were given hong-huang antioxidant (100 mL per bag) from the 1st day to the 14th day of chemotherapy, 2 bags for each day (morning and evening). Patients in control group were given foundation treatment the same as the treatment group. Patients in the two groups had their serum NO, the content of SOD, and blood rheology tested on the day before chemotherapy, and the 4th, 7th, 14th days during chemotherapy. Meanwhile, their symptom score and the integral of stress reaction and TCM symptoms were also assessed. ResultsOn the 4th day, serum NO of treatment group decreased, while SOD content increased,without statistical significance between the two groups (P>0.05). Serum NO on the 7th, 14th days was significantly lower than that in the control group, but the content of SOD was higher than that in the control group, with statistical significance between the two groups (P<0.05). Hemorheology on the 4th day significantly decreased after treatment (P<0.05), and was significantly better than that in the control group (P<0.05); Clinical symptoms and stress symptoms integral in the treatment group were significantly lower than those in the control group on the 4th, 7th, 14th days of chemotherapy, with statistical significance (P<0.05).Conclusion Hong-huang antioxidant can significantly improve the oxidative stress status, serological indexes, related blood rheology indexes, and clinical symptoms in patients with breast cancer.

Objective: To compare the efifcacy and safety of circumferential pulmonary vein antecourt isolation (CPVAI) ablation and stepwise linear (SL) ablation in treating the patients with atrial ifbrillation (AF) Methods: A total of 136 AF patients with catheter ablation under EnSite 3000 guidance in our hospital were retrospectively summarized. The patients included 93 paroxysmal AF and 43 persistent AF and divided into 4 groups. Paroxysmal AF with CPVAI ablation,n=45, Paroxysmal AF with SL ablation,n=48 and persistent AF with CPVAI ablation, n=18, persistent AF with SL ablation,n=25. The differences of left atrium diameter, ablation time, X-ray exposure time, the success rate and complication were compared among different groups. Results: For 12 months follow-up study, the success rate and complication were similar between 2 ablation methods for treating both Paroxysmal AF and persistent AF patients. For Paroxysmal AF patients, both ablation methods could effectively reduce left atrium diameter,P<0.01. The SL ablation had less procedural time than CPVAI ablation,P<0.01, while the X-ray exposure time was similar between 2 ablation methods. Conclusion: Both CPVAI and SL ablation methods were effective and safe for treating AF patients.

Objective To compare the effects and safety of endoscopic balloon dilation with surgical therapy in treating esophageal achalasia. Methods The patients who were diagnosed as achalasia of cardia from Jan. 2002 to Dec. 2007 were consecutively collected. All patients were divided into endoscopic balloon dilation group (endoscopy group), thorascopic / laparoseopic surgery group (telescopy group) and standard thoracotomy group (operation group). The efficacy, relapse rate and safety were compared among three groups. Results Ninety eight patients were enrolled. There were 57 patients in endoscopy group, 24 patients in telescopy group, and 17 patients in opreation group. All of the patients completed the treatment. There was one case (1.6%) in endoscopy group complicated with esophageal rupture, two (8.3%) in telescopy group complicated with esophageal fistula, and one (5.9%) in operation group complicated with severe post-operation pneumonia infection, acute respiratory distress syndrome and infectious shock. The rest patients had symptomatic relief of dysphagia in different degrees after therapy, and that was further confirmed by symptoms assessment, x-ray, or endoscopic examination after one month. Five patients (8.9%) in endoscopy group relapsed, with a duration of 5 to 31 months (mean 8 months), and underwent re-dilation or stent placement successfully. One patient (4.2%) in telescopy group relapsed after 6 months and underwent re-dilation successfully. No one relapsed in operation group. Conclusions Compared with standard operation group and telescopy group, endoscopic balloon dilation is deserved to use widely in clinical application with its advantages of simple, convenient and low complication. In spite of its relapse, it still can be remedied well by endoscopic re-dilation or stent placement.

Objective To investigate the diagnostic value of intraductal ultrasonography (IDUS) for unconfirmed microlithiasis under endoscopic retrograde cholangiography ( ERC). Methods The data of 22 patients who were definitely diagnosed as having microlithiasis by IDUS and endoscopic sphincterotomy (EST) from July 2007 to September 2009 were retrospectively analyzed. Microlith was defined as choledo-cholith equal to or less than 3 mm in diameter. Using IDUS plus EST findings as golden standard of bile duct microlithiasis, the accuracy of diagnosis and rate of missed diagnosis of transabdominal ultrasonography, magnetic resonance cholangiography (MRC) and ERC were evaluated and compared. Results Diagnosis rates of trans-abdominal ultrasonography, MRC and ERC for extra-hepatic duct microlithiasis were 27. 3% (6/22), 38. 5% (5/13) and 27. 3% (6/22) , respectively. Detection rates of common bile duct dilation by 3 methods were 68. 2% (15/22) , 84. 6% (11/13) and 68. 2% (15/22) , respectively. The microlithiasis in 2 patients, which manifested as repeated acute pancreatitis, were missed by transabdominal ultrasonography , MRC and ERC, and were finally confirmed by IDUS. Conclusion Sensitivity of ERC in diagnosis of extra-hepatic microlithiasis is not superior to that of transabdominal ultrasonography or MRC. IDUS is a technically easy, safe, highly sensitive and accurate procedure, which is helpful in differentiation of etiology of recurrent acute pancreatitis.

To investigate the effect of atorvastatin on lipid metabolism in type 2 elder diabetes patients with hyperlipidemia, 26 patients with type 2 elder diabetes complicated with hyperlipidemia were treated with atorvastatin (10 mg/d) for 8 weeks. The serum triglyceride (TG), high density protein cholesterol (HDL-C) and low density protein cholesterol (LDL-C) were measured before and after the treatment. Meanwhile, the non-denaturing polyacrylamide gradient gel electrophoresis was used for detection of small-sized LDL(SLDL). Our results showed that TG dropped from 4.88 +/- 0.72 mmol/L to 2.65 +/- 0.32 mmol/L; HDL-C was increased from 0.85 +/- 0.31 mmol/L to 1.28 +/- 0.29 mmol/L; LDL-C was declined from 3.71 +/- 2.98 mmol/L to 2.10 +/- 1.22 mmol/L, sLDL-A was increased from (42.49 +/- 8.1)% to (53.27 +/- 7.5)%; LDL-B was decreased from (57.91 +/- 8.1)% to (46.73 +/- 7.5% ) (P<0.05). The level of blood glucose was not changed at the end of 8th week. It is concluded that atorvastatin has satisfactory lipid-regulating effects on type 2 elder diabetes patients with hyperlipidemia.
Anticholesteremic Agents/*therapeutic use ; Cholesterol, HDL/blood ; Cholesterol, LDL/blood ; Diabetes Mellitus, Type 2/*complications ; Diabetes Mellitus, Type 2/drug therapy ; Heptanoic Acids/*therapeutic use ; Hyperlipidemias/complications ; Hyperlipidemias/*drug therapy ; Pyrroles/*therapeutic use ; Triglycerides/blood

AIM: To discuss the effects of phytoestrogenic-genistein on cathepsin K (CK) expression stimulated by interleukin-1α (IL-1α) in osteoclast-like cells (OCLs) . METHODS: The OCLs were isolated from tissue of human giant cell tumor of bone (GCT) . The cells treated with reagents were divided into 7 groups including control (treated with phenol red-free-DMEM), vehicle (treated with 1.2 nmol· L-1 IL- 1α), 10-10-10-6genistein, genistein+ ICI 182.780, and 17[β-estrodiol (17β-E2) group. The cells were treated with 1.2 nmol· L-1IL-1α after pre-treated with genistein or 17β-E2 for 48 h (excluded the control group) . Expression of CK wasdetermined by reverse transcriptase-polymerase chain reaction (RT-PCR) and Western blot in OCLs stimulated by IL-1α in the presence of genistein or 17[β-E2. RESULTS: The obvious increase of expression of CK by IL1α in vehicle group was noted in comparing with control group (P ＜ 0.01 ) . Genistein down-regulated CK gene expression stimulated by IL-1α at the transcription level in a dose-dependent manner (r = 0.68, P ＜ 0.01 ) .Genistein down-regulated CK protein expression stimulated by IL-1α also in a dose-dependent manner (r = 0.61,P ＜ 0.01 ). The effects of genistein were abrogated partly after treatment with the estrogen receptor antagonist ICI 182.780. CONCLUSION: Genistein inhibits CK expression stimulated by IL-1α partly through estrogen receptor in OCLs.

This paper introduces the structure, contents, function of the digital teaching re-courses database in Clinical Skills course of Central South University, analyses the essence and char-acter of the flipped classroom (FC), and emphasizes flexible environment, learning culture, inten-tional content, professional educator in its implementation process. Meanwhile, it introduces the appli-cation of flipped classroom based on digital resources database in the teaching of Clinical Skills course, mentions the importance of the four aspects:preparing teaching materials, learning before class, guidance and cooperation in class, evaluation and knowledge expansion after class. Lastly, it analyses the advantages and foreground of it.

How to detect the P300 component in EEG accurately and instantly is a hot problem in the research field of Brain-Computer Interface. In this paper, an algorithm based on F-score feature selection and support vector machines was introduced for P300 detection. Using F-score feature selection method, we reduced input features to overcome the shortcoming of support vector machines in terms of low detection speed, and then implemented the detection of P300 component with support vector machines, which have good classification performance. The algorithm was tested with a P300 dataset from the BCI competition 2003. The results showed that the algorithm achieved an accuracy of 100% in P300 detection within five repetitions, and the detection speed of this algorithm was 2 times higher than that of the traditional support vector machines algorithm without F-score feature selection.
Algorithms ; Electroencephalography ; methods ; Event-Related Potentials, P300 ; physiology ; Humans ; Pattern Recognition, Automated ; methods ; Principal Component Analysis ; Signal Processing, Computer-Assisted