OBJECTIVE: To establish a determination method of five index components to control the quality of Glycyrrhizae Radix et Rhizoma and Longchai Decoction. METHODS: An ODS C18 column (4.6 mm × 250 mm, 5 μm) was adopted; the mobile phase consisted of acetonitrile -0.05% phosphoric acid with gradient elution at the flow rate of 1 mL · min-1; the detection wavelength was 237 nm, and the column temperature was 30°C. RESULTS: The five index components achieved baseline separation, and the negative sample showed no interference. The linear ranges were 0.156 8-1.568 μg for liquiritin (r=0.999 7), 0.157 1-1.571 μg for isoliquiritin (r=0.999 8), 0.155 8-1.558 μg for liquiritigenin (r=0.999 6), 0.187 1-1.871 μg for glycyrrhizic (r=0.996 9) and 0.158 1-1.581 μg for isoliquiritigenin (r=0.999 5), respectively. The average recoveries were 101.47% (RSD=1.272%), 101.09% (RSD=1.937%), 101.14% (RSD=2.388%), 100.38% (RSD=1.448%) and 100.86% (RSD=1.759%), respectively (n=5). CONCLUSION: This method has good resolution and high precision, and can be used for the quality control of Glycyrrhizae Radix et Rhizoma and Longchai decoction.

OBJECTIVETo evaluate the outcomes of T3a prostate cancer with unfavorable prognostic factors treated with permanent interstitial brachytherapy combined with external radiotherapy and hormone therapy.

METHODSFrom January 2003 to December 2008, 38 patients classified as T3a prostate cancer with unfavorable prognostic factors were treated with trimodality therapy (brachytherapy + external radiotherapy + hormone therapy). The prescription dose of brachytherapy and external radiotherapy were 110 Gy and 45 Gy, respectively. The duration of hormone therapy was 2-3 years. The endpoints of this study included biochemical failure-free survival (BFFS), distant metastasis-free survival (DMFS), cancer-specific survival (CSS), and overall survival (OS). Survival curves were calculated using the Kaplan-Meier method. The Log-rank test was used to identify the prognostic predictors for univariate analysis.

RESULTSThe median follow-up was 71 months. The serum pre-treatment prostate-specific antigen (PSA) level ranged from 10.0 to 99.8 ng/ml (mean 56.3 ng/ml), the Gleason score ranged from 5 to 9 (median 8), and the percentage of positive biopsy cores ranged from 10% to 100% (mean 65%). The 5-year BFFS, DMFS, CSS, and OS rates were 44%, 69%, 82%, and 76%, respectively. All biochemical failures occurred within 40 months. The percentage of positive biopsy cores was significantly correlated with BFFS, DMFS, and OS (all P=0.000), and the Gleason score with DMFS (P=0.000) and OS (P=0.001).

CONCLUSIONST3a prostate cancer with unfavorable prognostic factors presents not so optimistic outcome. Hormone therapy should be applied to prolong the biochemical progression-free or metastasis-free survival. The percentage of positive biopsy cores and the Gleason score are significant prognostic factors.

Androgen Antagonists ; therapeutic use ; Brachytherapy ; Combined Modality Therapy ; Gonadotropin-Releasing Hormone ; agonists ; Humans ; Male ; Neoplasm Grading ; Prognosis ; Prostatic Neoplasms ; mortality ; pathology ; therapy ; Treatment Outcome

AC133 Antigen ; Animals ; Antigens, CD ; metabolism ; Cell Differentiation ; Cell Proliferation ; Drug Resistance, Neoplasm ; Glioma ; pathology ; Glycoproteins ; metabolism ; Humans ; Neoplastic Stem Cells ; metabolism ; pathology ; physiology ; Neovascularization, Pathologic ; etiology ; pathology ; Peptides ; metabolism ; Radiation Tolerance

The author analyzes the basic information in recent years,including overall students scale,students' age,application trends,etc.Some suggestions are made,regarding to recruiting plan,applicant qualification,recruiting mode,etc,in order to further improve the recruiting and graduate management.

Objective To explore the clinical efficacy of three dimensional (3D) laparoscopic sleeve gastrectomy (LSG) in the treatment of obesity combined with type 2 diabetes mellitus.Methods The retrospective cross-sectional study was conducted.The clinical data of 28 patients with obesity combined with type 2 diabetes mellitus who were admitted to the Qinghai Red Cross Hospital between January 2013 and April 2016 were collected.All the patients underwent 3D LSG.Observation indicators:(1) surgical and postoperative recovery situations;(2) follow-up and metabolic indexes changes.Follow-up using outpatient examination and telephone interview was performed to detect complications of patients after discharge and usages of antidiabetic drugs or insulin up to February 2017.Body mass,body mass index (BMI),hemoglobin (Hb),albumin (Alb),fasting serum C-peptide,fasting blood sugar,2-hours postprandial blood glucose (2HPBG) and glycosylated hemoglobin (GHb) were detected at month 1,3,6 and 12 postoperatively.Measurement data with normal distribution were represented as (x)±s.Repeated measurement data were analyzed by the repeated measures ANOVA.Count data were evaluated by the proportion.Results (1) Surgical and postoperative recovery situations:28 patients underwent successful 3D LSG,without conversion to open surgery.Operation time,volume of intraoperative blood loss,time of postoperative gastrointestinal function recovery and time of postoperative drainage tube removal were (133 ± 20) minutes,(45 ± 22) mL,(2.5 ± 1.2) days and (3.4 ± 0.9) days,respectively.There were no postoperative complications and perioperative death.Duration of hospital stay was (7.1 ± 1.5) days.(2) Follow-up and metabolic indexes changes:28 patients were followed up for 6-12 months,with a median time of 8 months.During the follow-up,there was no death or severe complications.Body mass,BMI,Hb,Alb,fasting serum C-peptide,fasting blood sugar,2HPBG and GHb from pre-operation to month 1,3,6 and 12 post-operatively were decreased from (113±26) kg to (78± 14) kg,from (44±6) kg/m2 to (35±5) kg/m2,from (157±19) g/L to (140±13) g/L,from (43±5)g/L to (40±4)g/L,from (2.50±0.37) μg/L to (1.20±0.33) μg/L,from (10.5±2.0)mmol/L to (5.6±0.5)mmol/L,from (16.3±3.1)mmol/L to (7.9±0.9) mmol/L,from 9.2％± 0.9％ to 6.8％ ±0.6％ with statistically significant differences between preoperative and postoperative indicators (F=396.47,328.20,111.10,21.28,161.06,127.80,243.40,234.64,P＜0.05),and showing a downward trend.Of 28 patients,25 had complete remission of type 2 diabetes mellitus at 12 months postoperatively and 3 had partial remission,with an effective rate of 100.0％ (28/28).The excess weight loss was 63％± 16％.Conclusion 3D LSG is safe and effective in the treatment of obesity combined with type 2 diabetes mellitus,with a good shortterm outcome.

0.05),but there were statistically difference within E15,E19,P2,P10(Pa

A review of cell traction forces (CTFs) measurement based on Biological MiCro Electromechanical Systems (BioMEMS) microposts matrix is presented.CTFs are exerted by cells and ansmitted to the underly-ing substrate through focal adhesions and close contacts.which is essential for cells movement.Cells probe the mechanicaI compliance of the exlracellular mabix (ECM) in part by locally deforming it with nanonewton-scale traction forces.Precision measurement of CTFs is significant for many researches such as call biology and tissue engineering and so on.Enabled by the advancement in BioMEMS technology,surface treated high aspeect ratio Polydimethyisiloxane(PDMS)micropos matrix devices,which serve as BioMEMS sensom for de-tecting cellular nanoforces and studying in vitro cell mechanics,have been developed.Closely spaced vartical microposts matrixes were designed to encourage cells to attach and spread across multiple microposts,and to bend the microposts like vertical cantilevers as the cells locomote on the surface.Using this dense and dis-crete matrix of microposts rather than a convanfional continuous substrate,CTFs can be directly measured and quantified by processing the microscopy images of the deformations of microposts.The resolution of the force was in tens of nN/μm scale.At first,the conventional CTFs measurement methods were concisely summa-rized.Then BioMEMS microposts matrix method was described in detail,including principle and fabfication process,Surface treatment and cell expedment results.Furthermore,high aspect ratio structure collapse prob-lem was investigated.

A review of cell traction forces (CTFs) measurement based on Biological MiCro Electromechanical Systems (BioMEMS) microposts matrix is presented.CTFs are exerted by cells and ansmitted to the underly-ing substrate through focal adhesions and close contacts.which is essential for cells movement.Cells probe the mechanicaI compliance of the exlracellular mabix (ECM) in part by locally deforming it with nanonewton-scale traction forces.Precision measurement of CTFs is significant for many researches such as call biology and tissue engineering and so on.Enabled by the advancement in BioMEMS technology,surface treated high aspeect ratio Polydimethyisiloxane(PDMS)micropos matrix devices,which serve as BioMEMS sensom for de-tecting cellular nanoforces and studying in vitro cell mechanics,have been developed.Closely spaced vartical microposts matrixes were designed to encourage cells to attach and spread across multiple microposts,and to bend the microposts like vertical cantilevers as the cells locomote on the surface.Using this dense and dis-crete matrix of microposts rather than a convanfional continuous substrate,CTFs can be directly measured and quantified by processing the microscopy images of the deformations of microposts.The resolution of the force was in tens of nN/μm scale.At first,the conventional CTFs measurement methods were concisely summa-rized.Then BioMEMS microposts matrix method was described in detail,including principle and fabfication process,Surface treatment and cell expedment results.Furthermore,high aspect ratio structure collapse prob-lem was investigated.

Catheters ; Dacryocystitis ; surgery ; Dacryocystorhinostomy ; methods ; Endoscopy ; Female ; Humans ; Male ; Middle Aged

Objective: To observe the clinical efficacy of combining auricular point sticking and a healthy diet to treat simple obesity in children aged 6-9 years old.Methods: A total of 190 eligible obese kids were divided into an observation group and a control group using the random number table method, with 95 cases in each group. The observation group was intervened by auricular point sticking plus guide on a healthy diet, while the control group was only provided with the guide on a healthy diet. The therapeutic efficacy was observed after intervention for three consecutive months, as well as the changes in body mass (BM), body mass index (BMI), waist circumference (WC), hip circumference (HC), and subcutaneous fat thickness. Results: After the 3-month intervention, the total effective rate was 91.6％ in the observation group, versus 74.7％ in the control group, and the between-group difference was statistically significant (P<0.01); in both groups, the BM, BMI, WC, HC, and subcutaneous fat thickness all decreased significantly (P<0.05), and were lower in the observation group than in the control group, showing statistical significance (P<0.05). Conclusion: Auricular point sticking plus a healthy diet is safe and effective in treating simple obesity in children, producing more significant efficacy than healthy diet intervention alone.