Three Modules and Three Stages proposed by guidelines on college English teaching that will be issued by the Ministry of Education gives direction for college English teaching.Through the investigation of the students' cognition and learning of English curriculum,combined with the teaching experiment,the new system of English curriculum,which reflects the characteristics of medical colleges and universities,has been preliminarily established,aiming at cultivating medical students' comprehensive English abilities in medical study and career development.Considering students' language abilities in different stages,college English curriculum can be designed in three modules,that is,English for general purpose (EGP),English for academic purpose (EAP) and intercultural communication,in three stages,that is,the basic stage,the improvement stage,and the development stage.The practice shows that the new curriculum system can promote the interaction,reform and development of teachers,teaching teams and Foreign Language Department.

Objective To investigate the relationship between plasma triglycerides ( TG ) , cholesterol (TC)levels and breast cancer.Methods 105 cases of breast cancer(age from 22 to 69 years)and 261 cases of healthy control(age from 16 to 52 years)admitted from May.2014 to Oct.2014 were studied.TG and TC were tested.Subgroup analysis was performed by age (<35, 35-45, ≥45 years) and BMI( <18.5, 18.5-24, ≥24).Results TG level in breast cancer group was significantly higher than that of the healthy control group (t=-3.97,P=0.00), and TC level was lower than that in the healthy control group (t=2.49, P=0.01).TG lev-el of breast cancer patients≥45 years old was higher than that in the healthy control group ( t=-4.31, P=0.00).TC level of breast cancer patients <35 years and from 35 to 45 years was lower than that of the healthy control group(t=3.12, P=0.00及t=2.41, P=0.02); TG levels in breast cancer group were significantly lower than those of the healthy control group for all BMI subgroup ( t=-3.67, P=0.01 for BMI<18.5; t=-3.87, P=0.00 for BMI from 18.5 to 24.0;t=-2.01, P=0.04 for BMI≥24).TC level of breast cancer patients was higher than that of the healthy control group for patients whose BMI <18.5(t=-3.41, P=0.01) and it was lower than that of the healthy control group for patients whose BMI≥24.Conclusions The relation-ship between TG , TC and breast cancer is associated with age .Compared with healthy group , breast cancer pa-tients≥45 years have a higher TG level and breast cancer patients <45 years have a lower TC level .

Objective:To investigate the effect of rapamycin on cell growth and migration of gallbladder cancer GBC-SD cells, and to discuss its potential in clinical therapy of gallbladder cancer. Methods: Proliferation of GBC-SD cells treated with different concentrations of rapamycin (12.5, 25, and 50 mmol/L) was examined by MTT assay. Cell cycle distribu-tion and apoptosis of GBC-SD cells treated with different concentrations of rapamycin were determined by flow cytometry. Migration ability of GBC-SD cells was assessed by Transwell assay. The expression of mTOR (mammalian target of rapam-ycin) and its phosphorylation in GBC-SD cells were examined by Western blotting assay. Results: Rapamycin significant-ly inhibited the phosphorylation of roTOR, but had no influence on the expression of roTOR in GBC-SD cells. Rapamycin significantly inhibited the growth of GBC-SD cells in a dose-dependent manner (P < 0.01). Raparnycin induced apoptosis of GBC-SD cells and arrested them at the G_1/S phase. Furthermore, rapamycin also significantly suppressed migration of GBC-SD cells as showed by Transwell assay (P < 0.01). Conclusion: Rapamycin can remarkably inhibit the growth and migration of gallbladder cancer cells, probably by inhibition of p-roTOR pathway, induction of apoptosis and cell cycle ar-rest of gallbladder cancer cells.

Objective To evaluate the efifcacy and safety of hemostatics of injected gelatin matrix (HIGM) under the guidance of contrast-enhanced ultrasound (CEUS) for treating splenic trauma in canine model. Methods A total of 24 commercial hybrid dogs underwent celiotomy with creation of uniformly blunt splenic trauma lesion of 4.0 cm×4.0 cm×2.5 cm (length, width and depth, respectively) by hemostatic clamp. Subjects were prospectively randomized into two groups. The treatment group was treated with HIGM under the guidance of CEUS and the positive control group received thrombin solution. Conventional ultrasound and CEUS were performed to record the ascites and the splenic lesion areas at 1st, 3rd, 7th, 14th and 21st day. The ifne needle biopsy and splenectomy were performed for histopathologic examination. The weight, free intraperitoneal lfuid and injury site were compared with t test between HIGM and postive group. Results All animals in two groups survived. All dogs stopped hemorrhage after injection of HIGM under CEUS guidance. The area of injury site was (12.91±0.89) cm2, (4.45±0.75) cm2 and (1.38±0.23) cm2 at 1st, 3rd and 7th day and splenic lesions were not found at 14th and 21st day in all dogs (n=12) of HIGM group. The splenic lesion was (16.74±0.91) cm2, (11.26±0.99) cm2, (8.02±0.82) cm2 and (1.58±0.36) cm2 in the postive group at 1st, 3rd, 7th and 14th day and splenic lesions were not found at 21st day in all dogs (n=12). At 7th and 14th day post-injection, lesion areas were statistically significant between two groups (t=27.162, P=0.008;t=15.129, P=0.001). Free intraperitoneal lfuid was (0.91±0.05) cm at 1st day detected by conventional ultrasound and free intraperitoneal fluid was not found at 3rd, 7th, 14th and 21st day in all dogs (n=12) of HIGM group. The free intraperitoneal fluid in thepositive group was (1.96±0.17) cm, (1.30±0.11) cm and (0.81±0.12) cm at 1st, 3rd and 7th day and free intraperitoneal lfuid was not found at 14th and 21st day in all dogs (n=12). At 1st, 3rd and 7th day post-injection, free intraperatitoneal lfuid was statistically significant between two groups (t=20.934, P=0.003; t=41.310, P=0.000; t=22.520, P=0.000). Histopathological examination showed that there was no foreign body and foreign body granuloma and the structure of red pulp was recovered at 7th, 14th and 21st day. Gross anatomy showed that the splenic injury site was recovered completely without complications. Conclusion This study explored the value of HIGM for splenic trauma and provided a preliminary experimental evidence for clinical treatment.

Objective To investigate the diagnostic value and significance of myocardial injury markers in neonates.Methods A retrospective analysis of 838 cases of myocardial injury markers in neonates,the total positive rate of hs -cTnI and the positive rates of hs -cTnI(hypersensitivity cardiac troponin I)in different kinds of neonatal disease were calculated,the levels of abnormalities consistent rate in hs -cTnI and CK -MBmass(creatine kinase MB mass)were compared with hs -cTnI and MYO(Myoglobin).Results The total positive rate of hs -cTnI was 40.33% in the 838 neonates.The highest incidence of myocardial injury was neonatal sepsis (57.14%),followed by neonatal pulmonary hemorrhage (55.56%)and neonatal convulsions (54.55%).The abnormalities consistent rate of hs -cTnI and CK -MBmass was better than hs -cTnI and MYO (85.50% vs 28.11%,χ2 =226.9,P <0.05). Conclusion Neonatal hospitalized children often complicated by myocardial injury;As a biochemical myocardial injury marker,the hs -cTnI detection is important for early detection of myocardial injury,it should be recommend as routine test items;CK -MBmass has better correlation with hs -cTnI than MYO,which can provide guide for doctors to interpret the data of myocardial injury markers.

Triple-negative breast cancer is a complex type of breast cancer,the most common malignant tumor in women.Since the early image features of triple-negative breast cancer appear benign tumor with rapid growth,this cancer has progressed into the middle and late stages once diagnosed,which leads to high mortality.Therefore,the diagnosis of triple-negative breast cancer has always been a clinical difficulty.This article summarizes the role of ultrasound in the diagnosis and treatment of triple-negative breast cancer.The extracted multi-mode ultrasound features will facilitate the early detection of this cancer and improve the prognosis of these patients.
Breast Neoplasms/diagnostic imaging* ; Diagnosis, Differential ; Female ; Humans ; Triple Negative Breast Neoplasms/diagnostic imaging* ; Ultrasonography ; Ultrasonography, Mammary

Objective:A new recombinant baculovirus transfer vector was constructed, in whic h a recombinant gene fragment encoding HIV-1 gag-gp120 chimeric gene was inse rted.Methods:After HIV-1 gag gene and gp120 gene were linked,the recombinant baculov irus vector was constructed,and the DNA recombinant technique and the E coli /baculovirus system were used.Results:Gel electrophoresis of DNA analysis showed that the genes were recombine d correctly.Electron microscope showed that the recombinant baculovirus reproduc ed in a great quantity.Conclusion:Recombinant baculovirus vector which HIV-1 gag-gp120 chimeric gene fragment was inserted in was constructed successfully.This vector is useful in study of the expression and the biological function of the HIV-1 Gag-gp120 ch imeric protein.

Animals ; Cardiomegaly ; Constriction ; Heart ; Mice

OBJECTIVETo explore the efficacy of homemade hemostatics of injected gelatin matrix (HIGM) for immediately treating blunt hepatic trauma in canine model without additional pressure.

METHODSA total of 27 commercial hybrid dogs underwent celiotomy to establish hepatic trauma model after general anesthesia. The dogs were prospectively randomized into 3 groups: the treatment group (n=9, with the direct application of homemade hemostat), the positive control group (n=9, with thrombin solution), and the negative control group (n=9, with 0.9% normal saline). Time to hemostasis and intra-abdominal blood loss were recorded, and heart rate (HR), mean arterial pressure (MAP), and hematological parameters were compared among these three groups. Gross examinations were performed 30 minutes after surgery.

RESULTSSignificantly shorter time to hemostasis [(1.20±0.33) min] and less blood loss [(47.22±8.61) ml] were observed in the treatment group than in control groups (P 0.05). No cases of bleeding occurred in any animals in the treatment group, and no signs of infection and adhesion formation were evident due to exposure to HIGM. Two cases in the positive control group (22.22%) were found to have rebleeding. All animals in the negative control group experienced visible bleeding.

CONCLUSIONHIGM is effective for controlling bleeding after hepatic trauma without the additional compression, and therefore may be valuable in field surgery.

Animals ; Disease Models, Animal ; Dogs ; Gelatin ; administration & dosage ; Hemostatics ; administration & dosage ; Injections ; Liver ; injuries

OBJECTIVETo evaluate the clinical use of virtual endoscopy in the traumatic ossicular chain disruption with intact tympanum pre- and post-operation.

METHODSThe series consisted of 17 cases with temporal bone fracture and 4 cases with tympanum contusion. All were examinated with a high resolution spiral CT by axial and oblique coronal planes of the temporal bone. Three-dimensional reconstruction was processed using the virtual endoscopy software. Ten cases of traumatic ossicular chain disruption were performed with intact canal wall epitympanum approach Ossicular reposition. Eleven patients with facial paralysis were performed ossiculoplasty and facial nerve decompression. Nine cases re-examinated virtual endoscopy after operation.

RESULTSSeventeen cases with temporal bone fractures and traumatic ossicular chain disruption, including 3 cases with the long process of the incus fracture, 9 cases with incus bone dislocation, and 5 cases with incus shedding. In the 4 cases of tympanum contusion, 2 cases with incus bone dislocation, 2 cases with incus bone shedding. The axial plane of temporal bone CT could only showed the fracture line and the hammer and incus bone irregular shape. Perioperatively virtual endoscopy showed hammer incus joint separation, incus stirrup dislocation and joint deformation. Surgery confirmed that the incus body was torn off below the hammer following bone displacement, soft tissue wrapped articular surface, incus and stapes just connected with soft tissue. During the tympanum contusion operation could see incus bone-shedding was valgus. Three to six months after surgery, re-examinated virtual endoscopy showed incus bone dislocation ossicular chain was restored to normal, temporal bone shedding ossicular chain connecting almost intact Hearing increased significantly to the level of practical hearing. The coincidence of traumatic disruption of the ossicular chain by virtual endoscopy and surgery was 100%.

CONCLUSIONVirtual endoscopy was valuable for providing accurate assessment and individual program for treating and following-up the traumatic ossicular chain disruption.

Ear Ossicles ; diagnostic imaging ; injuries ; Endoscopy ; Female ; Humans ; Imaging, Three-Dimensional ; Male ; Middle Aged ; Tomography, Spiral Computed ; methods ; User-Computer Interface ; Wounds and Injuries ; diagnostic imaging