Objective To explore the timing of wound closure and the choice of methods in Gustilo Ⅲtype tibiofibula open fractures after emergency debridement.Methods 42 patients with Gustilo Ⅲ type tibiofibula open fractures from January 2014 to January 2015 were selected as the observation group.All patients were performed emergency fracture fixation after debridement and wound secretion culture immediately after debridement, if the training result was positive,the debridement,again until the training results for negative when square in 48 hours after closing a wound.Selected 38 patients with GustiloⅢtype tibiofibula open fractures,the prompt debridement 38 cases were fracture fixed routine treatment after closing the wound,they were set as the control group.Compared two groups of patients with wound infection and fracture healing.Results The fractures wound infection rate of the observation group was 4.76%,which was significantly lower than 15.79% of the control group,the difference was statistically significant(χ2 =10.739,P=0.000).The wound healing time and fracture healing time of the observation group were significantly better than those of the control group,there were statistically significant differences( t=9.684,7.324,all P<0.05).Conclusion GustiloⅢtype emergency open tibiofibula fracture after debridement of the wound closure time should according to the results of wound secretion culture,cultivate the results can be achieved when the negative for wound closure,according to the degree of injury of soft tissue,to choose the right means of wound closure.

Tenascin-C (TNC) is an extracellular matrix glycoprotein, which is usually highly expressed in embryonic tissues and tumor tissues, but is not expressed or just lowly expressed in mature tissues. TNC is involved in various complex signaling pathways during tumor metastasis, especially through modulating FAK, RhoA, Wnt and Notch pathways by interacting with syndecan-4, integrin α5β1, matrix metalloproteinases (MMPs) and vascular endothelial growth factor (VEGF). As a result, TNC affects epithelial mesenchymal transition, tumor cell adhesion, proliferation and angiogenesis, which eventually enhances the invasion and metastasis ability of many tumors. Further studies have demonstrated that TNC could be used as prognosis or metastasis marker of patients with malignant tumor.
Cell Adhesion ; Humans ; Integrins ; Matrix Metalloproteinases ; Neoplasm Metastasis ; Neoplasms ; Neovascularization, Pathologic ; Signal Transduction ; Tenascin ; physiology ; Vascular Endothelial Growth Factor A

Objective: To develop a way of high-quality real-time three dimension surface reconstruction for high-resolution volume data.Method 3D surface point sets of single organ were using a method of binding the threshold and morphological operations.The normal vector of every surface point was calculated.According to the gray gradients of volume data,the triangle face was replaced by surface points to describe the organ surface,and the surface was displayed with OpenGL interface of display card after defining the color and transparent of the organ surface.Result Based on hardware platform of personal computer,the reconstruction of skeleton and skin for the digitized virtual Chinese man No.1(VCH-M1) from CT database was constructed,the rendering speed was faster than 25 F/s.Conclusion The algorithm is capable of realizing a real-time rendering for 512?512?1720 high resolution volume data.

Objective To study binocular rivalry (BR)objectively and the correlation between fusiform face area (FFA)and visual cortex.Methods Six subjects participated in this study,with one eye presented a normal face expres-sion picture flickered at 8.57 Hz,while the other presented a fearful face flickered at 12 Hz or 15 Hz,respectively.Electro-encephalogram(EEG)was recorded during this process.Steady state visual evoked potential(SSVEP)evoked by two flick-ering rates was analyzed by time-frequency analysis of short time fourier transformation(STFT).The time index of BR was estimated and the correlation coefficient between FFA and visual cortex compared.Results The total average time was (411.6 ±73.8)ms for the left eye and (547.6 ±126.7)ms for the right eye.The switch rate of the two groups was not different,but the left FFA was more sensitive than the right FFA in process of the fearful face.Neither side of FFA had any frequency preference to the flickered fearful face.Conclusion SSVEP can be used as a frequency tag of BR or as a tool to evaluate visual sensation under BR objectively.SSVEP combined with BR can be used in research of neural mechanisms of visual awareness.

Objective To investigate the expression profiles of microRNA in early esophageal squamous cancer and normal esophageal tissues and verify the significantly different expression miRNAs , further to study the effects on proliferation of EC109. Methods The microarray assay was performed to analyze miRNA expression profiles in three pairs of early esophageal squamous cancer and the corresponding normal esophageal tissues. Quantitative real-time polymerase chain reaction (qRT-PCR) was used in another 38 pairs samples to further verify the differentially expressed miRNAs . Three verified miRNAs ( miR-29a, miR-221 and miR-222) mimics were transfected into EC109 respectively and CCK8 method was used to study the effect of cell proliferation in each miRNA. Results Microarray technique selected 53 miRNAs that differentially expressed in early esophageal squamous cancer and normal esophageal tissues , 32 miRNAs were up-regulated and 21 miRNAs were down-regulated. qRT-PCR verified that miR-29a was significantly down-regulated (P < 0.05) and miR-221, miR-222 were significantly up-regulated (P < 0.05) in early esophageal squamous cancer tissue. Over-expression of miR-29a could significantly inhibit the proliferation of EC109 (P < 0.05) whereas over-expression of miR-221 or miR-222 could both significantly promote the proliferation of EC109 (P < 0.05). Conclusion There was significant difference of miRNAs expression between early esophageal squamous cancer and normal esophageal tissues, and the differentially expressed miRNAs could be used as new biomarkers for early diagnosis of esophageal squamous cancer.

Objective To investigate the differences in susceptibility to Lewis lung carcinoma and T lymphocyte subsets in the immune microenvironment between young and elderly mice.Methods Six C57/B6 mice at two months(young)and six mice at twelve months(aged)were injected with Lewis lung carcinoma cells at the dose of 1 × 106 in the left armpit to establish a murine model of lung carcinoma.The weight and tumor growth were monitored.Blood samples for routine blood tests were collected after 24 days.The proportions of CD4+ and CD8+T cells in the spleen were detected by flow cytometry,and the infiltration of CD4+,CD8+ T cells and related effector T cells in the tumor microenvironment were determined in the same way.Results The body weight of tumor bearing mice in the aged group was significantly higher than that in the young group(P ＜0.001);The tumor weight in the aged group(5.084±0.528)g was significantly higher than that in the young group(2.963 ±0.378)g(t =3,349,P =0.012);Routine blood tests showed that the numbers of leukocytes and subsets(except mononuclear)in the aged group were significantly lower than in the young group(P ＜0.05);Flow cytometry found that the effector and memory/effector CD4+T cell ratios in the spleen were significantly higher in the aged group than in the young group(P ＜0.001)and the expression of effector and memory/effector CD8+T cells in the tumor microenvironment was also significantly higher than in the young group(P ＜0.05);Quantitative expression values of IL-6 and IL-10 in the tumor microenvironment were 25090±3820 and 10670± 1793 in the aged group and 6252±864 and 3061±451 in the young group,respectively.Moreover,the expression levels of IL-6 and IL-10(t =3.925,P =0.01;t =3.552,P =0.02)in the tumor microenvironment in the aged group were significantly lower than those in the young group.Conclusions Young mice are more susceptible to Lewis lung carcinoma,probably as a result of differences in inflammation and immunity.

AIM: To investigate the effect of canstatin on cultured rabbit vascular smooth muscle cells(VSMC). METHODS: By means of cationic liposome mediated method, canstatin RNA was transferred into cultured VSMC. The proliferation quantity of VSMC were determined by the cell counting method and thymidine(-TdR) incorporation. RESULTS: Canstatin RNA could be effectively transferred into cultured primary rabbit aortic smooth muscle cells by the cationic liposome-Dosper and could markedly inhibit VSMC proliferation. CONCLUSION: Transfection of canstatin RNA could inhibit the growth of VSMC in vitro.

Objective To establish a method for determination of phenylethanoid glycoside and acteoside in Plantago Herba. Methods UV-visible spectrophotometric method was used for the determination of the content of phenylethanoid glycosides compounds in Plantago Herba. HPLC method was used for the determination of acteoside in Plantago Herba. Chromatographic column with C18 ODS2 (4.6 mm × 150 mm, 5 μm) was used. Acetonitrile-0.1%formic acid (13:87) was as mobile phase; the flow rate was 1 mL/min; the detection wavelength was 332 nm; the column temperature was 30 ℃; the sample volume was 10 μL. Results The contents of phenylethanoid glycoside in Plantago Herba from different producing areas were among 1.03%–3.47%. Acteoside with peak area over the 0.0062–1.55 mg range showed a good linear relationship; the sample recovery rate was 98.9%, and the RSD was 1.6%. The contents of acteoside in Plantago Herba from different producing areas was among 0.18%–0.56%. Conclusion The method is simple, stable and reproducible, which can be used for the determination of phenylethanoid glycoside and acteoside in Plantago Herba from different producing areas and provide experimental basis for quality control of Plantago Herba.

Objective To investigate the value of bispectral index and intracranial pressure monitoring in evaluation of postoperative consciousness and short-term prognosis in patients with severe traumatic brain injury.Methods A simple random sampling method was used in 30 cases of brain trauma coma patients in the People's Hospital of Northern Jiangsu Province from January 2014 to December 2014.Glasgow coma scale (GCS) were evaluated at intervals of 8 hours,GCS were recorded for 3 days after surgery,The bispectral index value and intracranial pressure value are recorded at the same time.According to GCS,the patients were divided into two groups,group A (3≤GCS≤5) and group B(5 ＜ GCS≤8).The 21-days natural survival rate was counted.The Kaplan-Meier Method and Log-rank test were used to analyze the relationship between Bispectral index and intracranial pressure.Results The bispectral index value of group A was 45.3 ± 3.8,the intracranial pressure value of group A was (18.6 ± 2.8) mmHg,The bispectral index value of group B was 32.2 ± 8.2,the intracranial pressure value of group B was (33.4 ±4.6) mmHg.The 21-days survival rate of group A was 55％,and 21-days survival rate of group B was 30％.The Spearman rank correlation method was used to analyze the values.Bispectral index value was positively correlated with coma degree after operation in patients with severe traumatic brain injury,and was negatively correlated with intracranial pressure value (r =0.532,P ＜ 0.05;r =0.521,P ＜ 0.05).The more severer the patient's craniocerebral injury.,the more severer the condition,the higher the intracranial pressure,the lower the bispectral index value,the worse the prognosis is.Conclusion Combined monitoring of bispectral index and intracranial pressure has high application value in evaluating the coma degree and prognosis of patients with severe craniocerebral injury after operation.

Objective: To determine total phenylethanoid glycoside and acteoside in Plantago Herba to provide reference for evaluating the quality of medicinal materials.Methods: With acteoside as the control sample, a UV visible spectrophotometric method was used to determine total phenylethanoid glycosides in Plantago Herba.An HPLC method was applied to determine acteoside in Plantago Herba , and the conditions were as follows: an ODS2 C 18 (150 mm× 4.6 mm ,5 μm) chromatographic column was used with acetonitrile-0.1% formic acid (13∶87) as the mobile phase at a flow rate of 1.0 ml·min-1 , the detection wavelength was 332nm, the column temperature was 30℃, and the sample volume was 10 μl.Results: The reference solution and the sample solution had the maximum absorption at 332 nm, and the linear relationship was good within the range of 0.003 1-0.155 0 mg·ml-1 (r=0.999 5).The content of total benzene alcohol glycosides in 3 batches of samples was 2.73% , 2.61% and 2.84% , respectively;acteoside over the range of 0.000 6-0.155 0 mg·ml-1 (r=0.999 1) showed a good linear relationship with peak area,the sample recovery was 98.5% and the RSD was 1.6% (n =6), and the acteoside content in 3 batches of samples respectively was 0.54% , 0.51% and 0.56%.Conclusion: The method is simple, accurate and reproducible, and can be used for the determination of total phenylethanoid glycosides and acteoside in Plantago Herba.