Objective: To make students grasp basic thinking and learning methods, improve practice efficiency and creativity. Methods: In surgery teaching we should pay attention to building helpful thinking environment, design the breakthrough point of thinking, train students in problem consciousness, make students think vertically, horizontally, reverse and train them to think comprehensively. Results: Through various kinds of training of dispersing thinking, students can use these methods to think actively to seek different solutions to the same problems or improve the ability of problem analyzing and solving. Conclusion: The teacher should pay attention to the training of student's dispersing thinking ability in surgical teaching course.

BACKGROUND: Bilateral pedicle screw fixation combined with intervertebral decompression and fusion is a classic surgical approach in treatment of lumbar degenerative diseases, but it can cause ligament and other soft tissue damage of lumbar spine and degeneration of the adjacent segments. While translaminar facet screw fixation has its unique advantages.OBJECTIVE: To compare the clinical efficacy of unilateral pedicle screw fixation combined with translaminar facet screw fixation and bilateral pedicle screw fixation for lower lumbar degenerative diseases.METHODS: Forty-six patients with single-level lower lumbar degenerative disease were enrolled, and were then treated with bilateral pedicle screw fixation combined with intervertebral fusion (group A, n=24) or unilateral pedicle screw along with translaminar facet screw fixation and intervertebral fusion (group B, n=22). Afterwards, the clinical indexes and efficacy were compared between two groups.RESULTS AND CONCLUSION: (1) All operations were performed successfully. The length of incision, operation time,intraoperative blood loss, postoperative drainage volume and cost of hospitalization in the group B were significantly superior to those in the group A (P < 0.05). (2) There was no significant difference in the rate of fusion between two groups (P > 0.05). (3) The visual analogue scale and Japanese Orthopaedic Association scores in both groups at 1 week,3, 6, 12 and 24 months postoperatively were significantly improved compared with baseline (P < 0.05), but the scores had no significant differences between two groups (P > 0.05). (4) To conclude, unilateral pedicle screw fixation combined with translaminar facet screw fixation and bilateral pedicle screw fixation both exhibit satisfactory treatment outcomes,while the former holds little trauma, good stability, high fusion rate and less cost, which is a better choice for lower lumbar degenerative diseases.

Objective: To research the comparability of water vapor transmission of laminated films for pharmaceutical packaging determined by different instruments, methods and experimental conditions to provide reference and advice for the related inspection personnel.Methods: The principle, test parameters, conditions and scope of application for the testing methods for water vapor transmission in the national standard (GB) and international standards (ISO, ASTM) were compared by using three kinds of instruments based on different testing principles.Results: Different temperature and humidity conditions had great influence on the results of the same instrument.Under the same temperature and humidity, the instrument with different principles had little influence on the test results.Conclusion: Testing personnel should regularly use the standard membrane to calibrate the instrument of the sensor method.The temperature and humidity should be strictly controlled during the test.They should take measurement accuracy, personnel operation and economic loss into consideration to select the suitable method.

The study of brain information flow is of great significance to understand brain function in the field of neuroscience. The Granger causality is widely used functional connectivity analysis using multivariate autoregressive model based on the predicted mechanism. High resolution electroencephalogram (EEG) signals of ten healthy subjects were collected with a visual selective attention task. Firstly, independent component analysis was used to extract three spatially independent components of the occipital, parietal, and frontal cortices. Secondly, the Granger causal connectivity was computed between these three regions based on the Granger causality method and then independent sample t-test and bootstrap were used to test the significance of connections. The results showed that Granger causal connectivity existed from frontal to occipital and from parietal to occipital in attentional condition, while causal connectivity from frontal to occipital disappeared in unattentional condition.
Algorithms ; Attention ; Brain ; physiology ; Electroencephalography ; Healthy Volunteers ; Humans

ObjectiveTo study the effect of nutritional intervention combined with aerobic exercises on serum adiponectin and insulin resistance in nonalcoholic fatty liver (NAFL) patients.Methods32 patients confirmed as NAFL between April 2008 and August 2009 were enrolled into NAFL group and 31 health people into control group.NAFL group received nutritional intervention and followed aerobic exercise program.The changes of body mass index (BMI),serum adiponectin,fasting blood glucose (FBG),fasting insulin (FINS) and serum lipids were recorded before and after interventions.Insulin resistance index (HOMA-IR) was calculated.Inter-group difference,changes after intervention,and correlation between serum adiponectin and the other indexes were analyzed.ResultsCompared with the control group,BMI [ (29.84 ±3.16) kg/m2 vs.(22.22 ± 1.81 ) kg/m2,P =0.000],total cholesterol (TC) [ (5.09 ±0.86) mmol/L vs.(4.38 ±0.85) mmol/L,P =0.002],triglyceride (TG) [ (1.99±0.86) mmol/Lvs.(1.10±0.38) mmol/L,P=0.000],FBG[ (6.02±0.63) mmol/Lvs.(5.02±0.71) mmol/L,P=0.000],FINS[ (13.73±3.24) mU/Lvs.(9.55±1.99) mU/L,P=0.000],HOMA-IR [ (3.74±1.21) mmol/L vs.(2.08 ±0.27) mmol/L,P=0.000] in the NAFL group were significantly higher,while serum adiponectin in the NAFL group was significantly lower [ (4.89 ± 1.81 ) ug/L vs.( 12.97 ± 3.15 ) ug/L,P =0.000 ].After nutritional intervention and aerobic exercises,BMI [ ( 26.65 ± 2.39 ) kg,/m2 vs.(29.84 ±3.16) kg/m2,P =0.000] 、FBG [ (5.61 ±0.47) mmol/L vs.(6.02 ±0.63) mmol/L,P =0.004 ],and FINS [ ( 11.12 ± 2.01 ) mU/L vs.( 13.73 ± 3.24) mU/L,P =0.000 ] in the NAFL group were decreased significantly,while serum adiponectin [ (6.54 ±2.12) ug/L vs.(4.89 ± 1.81 ) ug/L,P =0.001 ] was significantly higher than the level before intervention.Serum adiponectin was negatively correlated with BMI,FBG,FINS,HOMA-IR,and TG (P =0.004,0.000,0.000,0.000,and 0.010),and positively correlated with high density lipoprotein cholesterol (P =0.026),but not correlated with TC (P =0.101 ).ConclusionThe combination of nutritional intervention and aerobic exercises can improve the level of serum adiponectin,adjust the level of serum glucose and serum lipids,and alleviate insulin resistance in NAFL patients.

Objective To study the relationship between serum adiponection and liver function and insulin level in patients with hepatogenous diabetes.Methods The research subjects included:28 patients with hepatog-enous diabetes who were admitted at Liaocheng People's Hospital (hepatogenous diabetes group);27 patients with simple type 2 diabetes without any complication (simple type 2 diabetes group),and 27 normal controb (control group).Blood adiponectin,fasting blood glucose (FBG),fasting insulins (FINS),alanine aminotransferase (ALT),aspartate transferase (AST),total bilirubin (TBIL) and albumin (ALB) were measured,and according-ly the insulin sensitivity index (ISI) was calculated.Results Compared with the control group.serum adiponec-tin levels and ISI levels were significantly lower in the other two groups (P<0.01),and the adiponectin levels were significantly higher in hepatogenous diabetes group than in simple type 2 diabetes group (P<0.05).The FBG and FINS levels in the hepatogenous diabetes group and the FBG levels in the simple type 2 diabetes group were significantly higher than those in control group (P<0.01).The FINS levels were significantly higher in the hepatogenous diabetes group than in simple diabetes group (P<0.05),while the levels of FBG and ISI were lower than that of simple type 2 diabetes group (P<0.05).Adiponectin levels were negatively correlated with ISI (r= 0.5265,P=0.000),and positively correlated with FBG (r=-0.6040,P=0.000),and were not correlated with liver functions Conclusion Insulin resistance and abnormal metabolism of adipenection exist in patients with hepatogenous diabetes and may together affect the occurrence and development of hepatogenous diabetes.

Background:With the increasing of antibiotic resistance and decreasing of eradication rate of standard triple therapy, bismuth-containing quadruple regimens were recommended by the update Chinese consensus report for eradication of Helicobacter pylori( Hp ) infection. Aims:To evaluate the eradication rate of the recommended bismuth-containing quadruple regimens for guiding the choice of low cost and high efficiency eradication regimens. Methods:A search of online database( CNKI,Wanfang and VIP)was carried out. Clinical trials published in Chinese from 2011 to 2013 that evaluated the eradication rate of the recommended bismuth-containing quadruple regimens were retrieved. Data were extracted by standardized data forms. According to the categories raised by Dr. Graham,the eradication rates were graded and analyzed. Results:A total of 166 eligible articles including 192 clinical trials for eradication of Hp infection were obtained. Nationwidely,the eradication rates of amoxicillin-containing regimens were acceptable,among which PAFB( PPI+amoxicillin+furazolidone+bismuth)regimen was more prone to achieve excellent eradication rate(≥95%). PACB ( PPI+amoxicillin+clarithromycin+bismuth)regimen was optimal for Hp eradication in East China,and PAFB regimen was optimal in Central South China. A 14-day treatment course was appropriate. Conclusions:In the recommended bismuth-containing quadruple regimens,PAFB regimen might be the first choice nationwidely for eradication of Hp infection in individuals without amoxicillin-hypersensitivity because of its low cost and high efficiency. The recommended treatment course is 14-day.

Objective: To imrove the current situation that disinfection is inconvenient and ineffective when infant incubators are used. Methods: To make some improvements without changing the structure and performance of existing infant incubators. Results: Built-in disinfection device is designed to overcome the difficult operation, poor effect and inconvenience in use. Conclusion:It has been awarded“the state utility model”for its safety and convenience (patent no:ZL200520117573.9).

Objective To investigate effect of irinotecan combined with cisplatin on level of Bcl-2 and MACC1 protein in serum in patients with cervical cancer.Methods 92 cases of patients with cervical cancer surgery from department of gynaecology and obstetrics,the third People’s hospital of Nanchang were randomly divided into control group and treatment group.Control group was treated with paclitaxel therapy chemotherapy, treatment group were treated with irinotecan combined with cisplatin.Bcl-2 and MACC1 protein in serum were compared before and after the treatment. Results The level of Bcl-2 and MACC1 in both groups were not statistically significant pre-treatment;After treatment, the levels of Bcl-2 and MACC1protein in serum were decreased (P<0.05).Compared with control group post-treatment, the level of Bcl-2 and MACC1 protein in serum were lower in treatment group (P<0.05).During follow-up, death cases of treatment group and control group were 5 cases and 6 cases respectively, the survival rate of 89.13% and 86.96% respectively within the past six months(χ2 =0.103,P>0.05).Death cases of treatment group and control group were 4 cases and 12 cases respectively. the survival rate of 91.30% and 73.91% respectively within one year (χ2 =4.84, P <0.05 ) Conclusion Irinotecan combined with cisplatin in the treatment of cervical cancer in one year survival rate is higher, which may be related to the decrease of serum levels of Bcl-2 and MACC1 protein content.

Biologic scaffold materials derived from decellularized tissues and organs have been successfully used in tissue engineering and regeneration medicine.Decellularization methodology varies according to the differences of the origin,tissue density,composition,geometric and biologic properties of the tissue.Optimal decellularization method should be developed on the basis of complete cell content removal with the preservation of extracellular matrix (ECM) integrity and bioactivity.In this article,an overview of decellularization methods and their effect upon acellular bracket structure and composition are presented.