Objective To study the expression of PTEN,Fas and DCR3 in human gastric cancer and evaluate their effects on carcinogenesis,cell proliferation,invasion and metastasis of gastric carcinoma,as well as clinical significance.Methods The expression of PTEN,Fas and DCR3 were detected by immunohistochemical method (streptavidin-peroxidase) in the tissues of 75 primary gastric carcinomas and 15 gastric ulcers.Results The positive expression rate of DCR3 in gastric carcinoma tissues was significantly higher than that in normal tissues,and the expression of PTEN and Fas was obviously lower than that in normal tissues (P<0.01).The expression of DCR3 was negatively correlated with Fas and PTEN respectively (r=-0.720,P<0.001; r=-0.336,P<0.001).There was a positive correlation between PTEN and Fas.The expression of PTEN,Fas and DCR3 was closely correlated with lymph node metastasis,clinical stage,histological differentiation grade and tumor depth of gastric cancer,but not related to sex,age and tumor size (P>0.05).Conclusion PTEN,DCR3 and Fas have mutual restrictive relationships in the process of invasion and metastasis in gastric cancer.Detecting the expression of PTEN,Fas and DCR3 in gastric cancer is helpful to judge the malignant biological behavior of gastric cancer at a different angle,which may be considered as reliability index in clinic diagnosis,judging curative effect and monitoring the prognosis of gastric carcinoma.

Radionuclide imaging was widely used in the diagnosis and treatment of skeletal diseases.It is of early diagnostic value in metastatic osteosarcoma，osteomyelitis and Paget's disease,and early affirmative value in vitality of transplanted bone.It also demonstrates a significant analgesic effect on theosteosarcoma and metastatic osteosarcoma.

Objective To investigate the role of AGE-RAGE system on intimal hyperplasia in autogenous vein graft of diabetic rats.Methods The experiments were performed on 40 male Sprague-Dawley rats which divided into two groups:diabetes group and control group.Autogenous vein graft model was established in all rats.Specimens were harvested 7 days and 14 days after surgery for histological examination,and RAGE,NF-?B p65 and VCAM-1mRNA were measured by semi-quantitative reverse transcription-PCR.Western Blotting and immunohistochemistry were used to detect the protein expression of RAGE,NF-?B p65 and VCAM-1.At the same time,the levels of serum AGE were tested.Results Compared with non-diabetic rats of control group,the intimal hyperplasia of vein graft in diabetic rats obviously increased(P

Adolescent ; Cranial Nerve Neoplasms ; Facial Nerve ; Humans ; Male ; Neurilemmoma ; Parotid Region ; pathology

Objective To investigate short-term clinical effect of anterolateral minimally invasive approach of total hip replacement.Methods A total of 35 patients treated by total hip replacement was divided into A and B groups.Group A used anterolateral minimally invasive approach,and group B used standard posterior Moore approach.The clinical data of operation time,amount of bleeding,blood transfusion volume,component position,Harris hip score,and complications of two groups were statistically compared.Results In terms of operation time,group A had certain disadvantages than group B.No significant difference was found between two groups in terms of operation time,annount of bleeding,blood transfusion volume,component position,Harris hip score,and complications.Conclusions In total hip replacement,anterolateral minimally invasive approach was safe and effective compared to standard posterior Moore approach.Doctors should choose their familiar surgical approach in operation.

Objective To investigate the significance of PI3K/AKT signal transduetion pathway in gastrointestinal stromal tumors(GIST).Methods The expression of PI3K、Akt、PTEN were detected with RT-PCR and Westem-blot of tumor specimens from 124 GIST cases and the corresponding normal gastric mucosa.Results In gastrointestinal stromal tumors,the tumor suppressor gene-PTEN was on low expression as with the inereased expression of PI3K and Akt.The positive expression rate of PTEN,PI3K and Akt was not statistically correlated with patients'demographics and tumor histological type,but they are significantly correlated with lymphatic metastasis and mucosal invasion.The expression of PI3 K and Akt are of significantly positive correlation(r=0.292,P=0.031).The expression of PI3K and PTEN are of significantly negetive correlation(r=-0.412,P=0.036).The expression of PTEN and Akt are of significantly negetive correlation(r=-0.386,P=0.024).Conclusion PI3 K/Akt and P,PTEN may have bean on reciprocally suppressive effect during the development of GIST.

BACKGROUND:Posterior cervical open-door expansive laminoplasty is one of the simple and effective methods to treat cervical spinal diseases, has satisfactory results but low complications. However, the imbalance of sagittal plan, loss of lordosis or axial pain is often reported recently. OBJECTVE:To analyze the correlation between cervical sagittal alignment and clinical outcomes after laminoplasty. METHODS:Between January 2011 and June 2015, 122 cases of cervical spinal disease, who were treated with open-door expansive laminoplasty with mini-titanium plate, were retrospectively analyzed. Clinical outcomes were evaluated by Japanese Orthopaedic Association, Neck Disability Index and Visual Analogue Scale. Radiographic results were assessed by C2-7 Cobb angle, C2-7 sagittal vertical axis and C7 slope. The correlation between sagittal alignment and clinical outcomes were analyzed. RESULTS AND CONCLUSION:(1) Al patients were fol owed up for 7-32 months. (2) Japanese Orthopaedic Association, Neck Disability Index and Visual Analogue Scale scores were improved in the final fol ow-up (al P<0.001). No significant difference in upper limb Visual Analogue Scale scores was determined (P=0.142). In the final fol ow-up, C2-7 sagittal vertical axis increased (P=0.036), but neither the C2-7 Cobb angle nor the C7 slope significantly changed (P=0.092, P=0.184). (3) There were no correlations between sagittal alignment parameters (C2-7 Cobb angle, C2-7 sagittal vertical axis and C7 slope) and clinical outcomes (Japanese Orthopaedic Association, Neck Disability Index and Visual Analogue Scale) (al P>0.05). (4) These findings indicated that posterior cervical open-door expansive laminoplasty with mini-titanium plate can significantly improve the neurological function of patients. However, there is no correlation between cervical sagittal alignment and clinical outcomes.

[Objective]The oxidative injury of retinal pigment epithelium(RPE)plays a key role in the pathogenesis of age-related macular degeneration(ARMD). This study is to investigate the effects of endoplasmic reticulum stress and the vital transcriptional factor X-box binding protein 1(XBP1)in acrolein-induced oxidative damage of RPE.[Methods]RPE cells were treated with acrolein (75μmol/L)for 2~24 h,expression of glucose regulated protein 78(GRP78)and XBP1 was determined by Western blot analysis. After being transfected with XBP1 siRNA with 24 h,the expression of XBP1 was knocked-down in RPE cells. Protein level of Nrf2 and SOD2 was then determined by Western blot analysis and intracellular Reactive Oxygen Species(ROS)generation was determined by DCF staining. Acrolein was added for 8 h after being transfected with XBP1 siRNA or control siRNA for 24 h. Apoptosis was detected by TUNEL assay before and after the treatment. Subretinal injection of Cre or GFP adenovirus was performed in XBP 1flox mice. After 1 week the mice were sacrificed. Total RNA was extracted from mice eyecups using TRIzol and real-time RT-PCR was performed to determine the two XBP1 down-stream genes,ERdj4 and p58IPK. Cryosectioning and immunofluorescent staining were performed to look at the expression of XBP1,Nrf2 and SOD2 in mice RPE.[Results]Protein level of GRP78 was significantly un-regulated after exposure to acrolein for 2 and 4 h. XBP1 was activated after acrolein treatment for 6 h. Knock-down of XBP1 by siRNA down-regu?lates anti-oxidant genes expression and increased ROS generation in RPE cells. Loss of XBP1 exacerbates acrolein-induced cell apoptosis. XBP1 was knocked-down in the RPE of XBP1flox mice after subretinal injection of Cre adenovirus. Decreased mRNA level of ERdj4 and p58IPK,and decreased Nrf2 and SOD2 expression were seen in the Cre-injected group.[Conclusions]Acrolein induces ER stress and activates XBP1 in RPE cells. Knock-down of XBP1 down-regulates anti-oxidant genes expression ,increases ROS generation,and exacerbates acrolein-induced cell apoptosis. XBP1 plays a role in the anti-oxidant defense in the RPE cells.

Objective To discuss the application of run?through wire stretch technique in the procedure of endovascular therapy for complex subclavian artery occlusive diseases. Methods The clinical data of 22 patients who were diagnosed complex subclavian artery occlusive diseases were retrospectively analyzed from June 2013 to January 2016 in vascular surgery department of Wangjing Hospital .The patients were treated endovascular therapy using run?through wire stretch technique in all procedures successfully. Results The complex subclavian artery occlusive diseases were including long segment occlusion of the left subclavian artery and ostial stenosis or occlusion of the right subclavian artery. The left subclavian artery occlusion patients was 16 and right subclavian artery ostial stenosis or occlusion was 6. The technical success rate was 100%. All patients were using combination of femoral artery and brachial artery approach. Run?through wire stretch technique was used in the procedure of endovascular therapy, which had improved the technical success rate. After the treatment the symptom improvement rate was 88%. The symptoms of upper limb and posterior circulation ischemia were improved. Conlusion Upper limb artery combined femoral artery approachand run?through wire stretch technique can improve the recanalization in the procedure of endovascular therapy for complex subclavian artery occlusive diseases.

Objective To investigate the hidden blood loss of intertrochanteric fractures in different gender. Methods Data of 108 patients with intertrochanteric fractures who were admitted to the department of orthopaedics from January 2012 to De?cember 2015 were retrospectively analyzed. For all patients who were composed of 42 males and 66 females and whose ages ranged from 32 to 95 years old, the average age was 75.4±10.8 years old. With the equation of Gross, the amount of perioperative hidden blood loss (PHBL) was calculated as well as the fraction of PHBL. The lineal regression model was utilized to analyze the correlations between PHBL and those factors including age, time interval between injury and surgery, injured side, Evans classifi?cation of intertrochanteric fractures, patients' ASA grade, and type of anesthesia. The difference of hemoglobin (Hb), hematocrit (Hct), total blood volume, the amount of PHBL, and the percentage of PHBL were respectively compared between male group and female group. Results PHBL had no correlation of lineal regression with age, time interval between injury and surgery, injured side, Evans classification of intertrochanteric fractures, patients' ASA grade, or the type of anesthesia. The share of PHBL did not have correlation of lineal regression with age, time interval between injury and surgery, injured side, Evans classification of inter?trochanteric fractures, patients' ASA grade, or the type of anesthesia as well. Lineal regressive correlation only existed between gender factor and the PHBL fraction of total blood volume, and there was no regressive correlation between gender factor and the amount of PHBL. In the male group, the mean amount of preoperative Hb was 121.8±16.6 g/L and preoperative Hct was averagely 36.7%±5.0%;in the female group, the amount of preoperative Hb was 99.5±13.1 g/L on average and the mean amount of Hct was preoperatively 30.6%± 3.7%. Postoperatively, the mean amount of preoperative Hb was 103.4 ± 19.3 g/L and Hct was averagely 29.8%±4.2%;in the female group, the amount of postoperative Hb was 79.0±10.4 g/L on average and the mean amount of Hct was postoperatively 23.9%± 2.6%. Significant difference of perioperative Hb and Hct was found between two groups. The total blood volume was averagely 4 500.6±191.5 ml in the male group and 3 607.0±235.7 ml in the females group. There was statistical differ?ence between two groups. For male group, the amount of PHBL was 647.9±174.1 ml on average and accounted for 14.4%±4.0%of total blood volume. For the female group, the mean amount of PHBL was 694.8±216.5 ml and making up 19.3%±6.1%of the total blood volume. As for the amount of PHBL, no significant difference was observed between male group and female group, but there was statistical difference of the share of PHBL accounting for total blood volume between two groups. Conclusion Female pa?tients' PHBL fraction of total blood volume is greater than male patients', therefore females' PHBL conditions need to be paid more attention to and ought to be corrected in time.