The design of field medicine automobile is discussed from the aspects of its structural form and functional features.The kind of field medicine automobile which is made to supply medicine timely and efficiently to meet the demand of field battle,can improve the effectiveness of medical supply and management with standardization,informationization,ordering and facilitation.

Objective Artificial mineral water pills were made by loading many kinds of trace elements into the ceramic carrier.Pure water could be mineralized after dipping the pills into the water.To assess the possible hazardous effects on the human health induced by the pills,a series of hygienic and toxicological experiments on the pills were carried out.Methods Acute oral toxicity test,micronucleus test of mice bone marrow cells,sperm abnormality test in mice and Ames test were con-ducted.Contents of trace elements,heavy metals and radioactivity in the mineralized water were determined according to the examination methods in Standard Examination Methods for Drinking Water and Examination Methods for Drinking Natural Min-eral Water.Results The contents of trace elements,heavy metals and radioactivity in mineralized water met the requirements of GB5749-1985Sanitary Standard for Drinking Water and GB8537-1995Sanitary Standard for Drinking Natural Mineral Wa-ter.Mineral pills were classified as actually non-toxic and the results of micronucleus test of mice bone marrow cells,sperm ab-normality test in mice and Ames test were negative.Conclusion Mineralized drinking water treated by artificial mineral pills were safe.

0.05). Conclusion: RVPI and RSVPI of can be used as a measure to assess VPF and speech articulation of CP patients after operation.

OBJECTIVETo investigate the clinical effects of enblock distal radius T-plate fixation in treating trailing edge fracture of tibial plateau medial condyle and posterior cruciate ligament (PCL) avulsion fracture.

METHODSFrom September 2008 to November 2011, 5 patients with trailing edge fracture of tibial plateau medial condyle and PCL avulsion fracture caused by knee joint hyperextension,were treated with surgery. There were 3 males and 2 females with an average age of 35 years old (25 to 42). Left knee injury was in 3 cases and right knee had in 2 cases; 2 cases caused by sports injury and 3 cases caused by road accident. All patients were undergone emergency treatment. Fractures were anatomically reduced and fixed with T-plate through poples approach. Complications were observed after operation. Bone healing and clinical effects were respectively evaluated by X-rays and HSS system.

RESULTSFive patients were followed up for 1 to 4 years with a mean of 2 years. All incisions obtained healing of I stage. All knee joints recovered well and were stable with inflexion more than 120 degrees, no complications such as knee joint pain, injuries of nerve and blood vessel, infection, internal fixation failure were found. The mean score of HSS system was 94.40 +/- 6.09 and all patients got excellent result.

CONCLUSIONFor the treatment of trailing edge fracture of tibial plateau medial condyle and PCL avulsion fracture caused by knee joint hyperextension, enblock distal radius T-plate fixation had advantages of good stability,higher success rate, and knee joint function can recover well.

Adult ; Female ; Follow-Up Studies ; Fracture Fixation, Internal ; Humans ; Male ; Posterior Cruciate Ligament ; diagnostic imaging ; injuries ; surgery ; Tibial Fractures ; diagnostic imaging ; surgery ; Tomography, X-Ray Computed ; Treatment Outcome

Objective To explore the diagnostic values of dual energy lung perfusion in the diagnosis of pulmonary embolism by using dual-source CT (DSCT). Methods Thirty patients with clinically suspected pulmonary embolism underwent dual-energy scanning with dual-source CT. The scanned data were integrated into three groups including 140, 80 kV and coefficient of 0.3. According to the CT pulmonary angiography (CTPA) of the fusion data, the patients were divided into pulmonary embolism group and normal group. The thin-slice reconstruction of data was analyzed using dual-energy perfusion imaging analysis software. The lung field was divided into upper, middle and lower part to make quantitative analysis of lung tissue perfusion. Paired t-tests were used in the normal patients to compare bilateral lungs, and independent samples t-tests were applied to compare the embolism group and normal group, while minimum intensity projection images (MinIP) were utilized in the assessment of lung ventilation. Results Dual energy CT showed symmetrical homogeneous perfusion in 16 normal cases, without significant perfusion defects. Quantitative analysis showed that left and right lung perfusion were (27 ± 7) and (28 ± 8 ) HU respectively, and no significant difference was found between the two sides ( t=-1.73, P ＞0.05 ).Perfusion of the left upper, middle and lower lung was ( 23 ± 6), (24 ± 6), and (28 ± 8) HU respectively, while the perfusion of right upper, middle and lower lung was (26 ±8), (27 ±8), and (28 ±9) HU respectively, showing no statistical significant difference between the two sides (t=-1.91, -1.96,-1.73 ,P＞0.05 ). Angiography of pulmonary embolism group(14 cases)showed filling defects in the pulmonary trunk, segments and sub-segments. Pulmonary perfusion imaging showed low perfusion or defectsin lung field that dominated by embolic vessels. Quantitative analysis showed that the perfusion of the whole lung and the middle and lower lung were (22 ±5), (22 ±8), and (21 ±8) HU in the embolism group,which were significantly different from the normal group (t=-2. 10, -2.32, -2.63, P＜0.05).Minimum intensity projection images showed a good consistency of abnormal ventilation zone area and perfusion abnormalities. Conclusions Pulmonary perfusion status, especially pulmonary embolism, can be analyzed by dual energy CT scanning. It helps to early discover and precisely locate the embolism.

Objective:To study the bioactivity of thymosin ?16 (T?16) in vitro and in vivo.Methods:Recombinant His-SUMO-T?16 was constructed and transformed into E.coli BL21(DE3) for induced expression.The product was treated by ultrasonication,ion-exchange chromatography and metal chelation chromatography respectively for purification.The fusion protein was cut by His-SUMO protease and then further purified by metal chelation chromatography and Superdex 30 gel chromatography.Results:Recombinant fusion protein His-SUMO-T?16 was soluble,whose specific activity was 5.3?105 U/mg.It could promote the proliferation of BALB/c 3T3 cells,rabbit corneal cells,and chicken embryo chorion vessels in vitro,and both the proliferation and migration of vascular endothelial cells in vitro were enhanced,and rabbit skin healing of alkali burns in vivo was accelerated.Conclusion:E.coli expressing vector of recombinant His-SUMO-T?16 fusion protein is constructed successfully,and recombinant protein T?16 has significant repairing effects.The study established a good foundation for further industrialization of T?16.

Objective To determine the optimal condition for labeling rat bone marrow mesenchymal stem cells(MSCs) with green fluorescent protein(GFP)infection by lentiviral vector so as to establish a subgroup of MSCs which have a high level of GFP expression.Methods MSCs were infected with GFP by lentiviral vector for 12h or 24h at different MOI(25,50,100,200 and 400).The infection efficiency and fluorescence intensity were analyzed by inverted fluorescent microscopy and flow cytometry.The effect of infection at different MOI on proliferation of MSCs was evaluated by MTT.Based on those mentioned above,we could determine the optimal condition for infection.Then single cell clones of MSCs labeled with GFP under optimal condition were selected by using cloning rings.Results The efficiency of infection for 24h at MOI 100,200 and 400 was 88.94%,99.65% and 99.42%,respectively.The infection had no significant effect on the proliferation of MSCs infected at MOI 100 or 200,compared with MSCs without infection.However,those MSCs infected at MOI 400 proliferated slowly.The rate of GFP expression on single-cell clone of MSCs infected for 24h at MOI 200 was 99.95%,and their fluorescence intensity was strong and uniform.Conclusion Infection for 24h at MOI 200 is optimal for labeling rat bone marrow MSCs with GFP by a lentiviral vector.A subgroup of MSCs which have a stably high level of GFP expression can be obtained by single cell cloning technique.

OBJECTIVETo observe the therapeutic effects of steel plate fixation after the failure of arthrodesis of ankle by screw fixation.

METHODSFrom August 2001 to October 2011, 15 patients were with steel plate fixation after failure of arthrodesis of ankle by screw fixation. Among patients, 9 cases were males and 6 cases were females,ranging age from 40 to 65 years old with the average of 56 years old. Ten cases were in left and 5 cases were in right. Screws were removed and steel plate was fixed intraoperatively, and plaster external fixation for postoperation. Clincal effect were evaluated according to AOFAS scoring system from pain, waliking ability and aligment before and after operation, and X-ray was used to evaluate joint fusion after operation.

RESULTSAll patients were followed up, and the duration ranged from 4 months to 4 years with an average of 2 years. The incison were healed in stage I. No ankle pain,injury of blood vessel and nerve,infection and farilure of internal fixation occuerred. The AOFAS score increased from 36.86 +/- 8.32 preoperatively to 85.09 +/- 4.65 (t = -26.366, P = 0.000).

CONCLUSIONSteel plate fixation after the failure of ankle arthrodesis of screw fixation has the advantages of rigid stability, simple manipulation and high success rate, less pain, perfect recovery.

Adult ; Aged ; Ankle Joint ; diagnostic imaging ; surgery ; Arthrodesis ; Bone Plates ; Bone Screws ; Female ; Follow-Up Studies ; Fracture Fixation, Internal ; instrumentation ; Humans ; Male ; Middle Aged ; Steel ; Tomography, X-Ray Computed ; Treatment Failure

Angioplasty, Balloon, Coronary ; Coronary Artery Disease ; therapy ; Humans ; Male ; Middle Aged ; Myocardial Infarction ; therapy ; Stents ; Vascular Malformations ; therapy

Chemical disinfectants are generally used for virus inactivation and environment disinfection in biosafety laboratory, and the efficacy and evaluation of the disinfection are critical to ensure the laboratory biosafety.However, there is a current lack of applied standard to evaluate the virucidal efficacy of chemical disinfectants in our country.In this paper, a European Union standard“Method and Requirements of Virucidal Quantitative Suspension Test Method for Chemical Disinfectants Used in Human Medicine” was analyzed and a standard transformation scheme has been proposed.It is suggested that the model viruses should be increased from 3 to 6, including the surrogate viruses to substitute highly pathogenic viruses, and that the method to remove the residual chemical disinfectant and the calculation of 95%confidence interval should be incorporated into the standard.The suggestion will improve the scientific and operational standards related to disinfection and sterilization in biosafety laboratory in China.