Objective:To improve the quality standard for Shengji ointment. Methods:A TLC method was used to identify Resina draconis and Olibanum. An HPLC method was used to determine the content of silver sulfadiazine. The detection wavelength was set at 254 nm. The determination was performed on a Wondasil C18 column(250 mm × 4. 6 mm, 5 μm) with the mobile phase consisting of acetonitrile-0. 1% phosphoric acid(8: 92). The injection volume was 5 μl. Results:The TLC spots were clear, specific and repro-ducible. A good linear relationship was obtained between the peak areas and the concentrations of sulfadiazine within the range of 40. 97-1024. 18 μg·ml-1(r=0. 9999). The average recovery was 100. 17% (RSD=0. 64%,n=6). Conclusion: The methods are easy-operated, specific, reproducible and accurate, which can be used for the quality control of the preparation.

Objective:To establish a GC method for determining the content of amantadine hydrochloride in pediatric paracetamol and amanatadine hydrochloride granules. Methods:The ingredients were separated on an Agilent DB-5 quartz capillary column (30 m ×0.25 mm, 0.25 μm), the carrier gas was N2,and the flow rate was 1 ml·min-1. The column temperature was maintained at 130℃, the injection temperature was 250℃,the detection temperature was 280℃ with an FID as the detector , the injection volume was 2 μl, and the split ratio was 20∶1. Results:A good linear relationship was obtained between the peak area and the concentration of amantadine hydrochloride within the range from 0.103 2 to 6.456 0 mg·ml-1(r =0.999 9). The average recovery was 100.18%(RSD=0. 11%, n=6). Conclusion:The method is specific, accurate, reliable and reproducible, which can be used in the quality control of pediatric paracetamol and amanatadine hydrochloride granules.

Humans ; Hypertension, Pulmonary ; diagnosis ; therapy

Animals ; Medicine, Chinese Traditional ; methods ; Phytotherapy ; Ventricular Remodeling

Cardiovascular Diseases ; psychology ; Humans ; Mental Health

Acupuncture Therapy ; Humans ; Male ; Meige Syndrome ; therapy ; Middle Aged

Objective: To design a convenient and safe leg support of lithotomy position surgical bed. Methods:Put the gas spring in the device to lift and drop the leg support, instead of turning screw, And then use the new leg support in 80 lithotomy position surgeries. Results:The new device can be operated by one man, it is easy operating and labor saving. There was no leg slip occurred in 80 surgeries, operators all expressed satisfaction. Conclusion: This innovation patent solved the problem of toilsome operating and potential safety hazard, It worth widely use in the clinical.

OBJECTIVETo study the clinical efficacy of semiextended intramedullary nailing of the tibia using a suprapatellar approach for proximal tibial fractures.

METHODSFrom January 2013 to January 2014, a total of 16 patients with unilateral proximal tibial fractures, 14 males and 2 females, underwent closed reduction and internal fixation with TRIGEN™ META-NAIL™ via the suprapatellar approach. The average age was 42.2 years old (ranged, 26 to 57 years old). Radiographic and clinical follow-up examinations were performed at a minimum of 1 year after surgery. Measurements included surgery time, complications, bone healing time, tibial alignment, knee range of motion, pain scoring (visual analogue scale) and functional outcome (Lysholm knee score).

RESULTSThe average surgery time was (75.7±8.3) minutes (ranged, 65 to 95 minutes). No obvious complications were recorded. Average duration of follow-up was (15.6±8.1) months (ranged, 12 to 24 months). Fifteen patients attained radiological bone union for a mean time of (3.6±1.8) months (ranged, 3 to 5 months). At the final follow-up, all tibial alignments were good, and no patients complained of anterior knee pain. Mean arc of knee motion was (124.4±18.8) degrees for the affected extremity compared with (127.5±16.7) degrees for the contra-lateral knee. The total scores of Lysholm knee score ranged from 77 to 92, average 86.4±12.3.

CONCLUSIONFor proximal tibial fractures,the semiextended intramedullary nailing technique via a suprapatellar approach can obtain satisfactory clinical outcomes with simplicity in reduction and fixation, minimal complications, and good recovery of limbs function.

Adult ; Female ; Fracture Fixation, Intramedullary ; methods ; Humans ; Male ; Middle Aged ; Tibia ; surgery ; Tibial Fractures ; surgery

Objective:This study was based on digital orthodontic diagnosis work flow for indirect bonding transfer tray model design and three-dimensional (3D) printing, and the aim of this paper was to inspect the dimensional accuracyof 3D printed brackets, which is the foundation of the follow up work and hoped that will illuminate the clinical application of the digital orthodontics work flow.Methods: The samples which consisted of 14 cases of patients with malocclusion from Department of Orthodontics Peking University were selected, including 8 cases with tooth extraction and 6 cases without tooth extraction.All the 14 patients were taken intra-oral scan (Trios 3Shape,Denmark)and cone-beam computed tomography (CBCT, NewTom 3G volumetric scanner, Aperio Service,Italy)shooting after periodontal treatment.STL data and DICOM data were obtained from intraoral scans and CBCT images.Data segmentation, registration, fusion, automatic tooth arrangement, virtual positioning of orthodontic appliance and conversion the coordinates of malocclusion model were all done with self-programming software.The data of 3D printing model with brackets on it were output finally and printed out with EDEN260V (Objet Geometries, Israel) to make indirect bonding transfer tray.Digital vernier caliper was used to measure the length and width of upper and lower left brackets and buccal tubes on those 3D models after removal of surrounding supporting material by ultrasonic vibration and water-spray.Intra-examiner reliability was assessed by using intra-class correlation coefficients (ICC), and one-sample T test was used to compare the measurements with the standard dimensional data of the brackets.Results: There were significant differences which range in 0.04-0.17 mm between the 13 items out of the 19 measurement items.Except for the length of the lower left premolars''brackets, mean values of the other items were greater than the test value.Conclusion: Although the measurement results in the width of brackets and the width and length of the buccal tubes obtained experimentally were slightly larger than the test value,this may not reduce the accuracy of indirect bonding procedure in clinic necessarily.Whether the differences which range in 0.04-0.17 mm would actually affect the retention and positioning of brackets needs to be confirmed by further studies.

Objective To investigate the mechanisms of inhibitory effect of Erlotinib,an epidermal growth factor(VEGF) receptor inhibitor,on angiogenesis of pancreatic carncer.Methods①In a tube formation assay,Erlotinib(100?mol/L) was applied to the culture media and compared to the serum free media.The expression of vascular endothelial growth factor(VEGF) in BxPC-3 cells treated with Erlo- tinib at different concentrations(5,50,100,200?mol/L) was determined by RT-PCR.②The xeno grafts derived from BxPC 3 cancer cells were inoculated into the BALB/C nude mice.The mice were treated with either Erlotinib(100 mg/kg of Erlotinib oral lavage daily) or saline for four weeks.The vol- ume of the xenografts was measured and the tumor growth rate was calculated.The microvessel density (MVD) of tumor tissue was determined by immunohistochemistry with an antibody against factorⅧ. Results There were less endothelium cells and close hollow tubular structures in grlotinib treated group compared to the control group in the tube formation assay.The mean weight of xenografts in Erlotinib treated group[(0.397?0.550)g] was significantly lower than that in the control group[(1.570?1.060)g] with a inhibitary rate of 74.5%.The expression of VEGF mRNA in Ertotinib treated groups (=50?mol/L) were decreased comparing to the control group.The VEGF expression in xeno- grafts tumor tissues was also markedly down-regulated.The MVI) was significantly decreased in Erlotinib treated group( 1.86?0.43)than that in the control group (5.98?1.27,P