Epidermal growth factor receptor (EGFR) is necessary in normal epithelial cell growth. Ab-errant EGFR expression is linked with increased cell proliferation and decreased apoptosis. Mutations and over-expression of EGFR are common features of many cancers. Therefore, Therapeutic agents that target the EGFR signal pathway, such as small-molecule tyrosine kinase inhibiiors and monoclonal antibodies are now advanced in clinical development. EGFR-targeted therapies of non-small-cell lung cancer (NSCLC) have been studied as a new way.

Objective To investigate the application of ureteral catheter in complicated gynecological laparoscopic surgery for the prevention of ureteral injury . Methods A total of 182 cases of gynecological laparoscopic surgery performed from January 2009 to November 2011 were selected as study group .Bilateral ureteral catheters were inserted under cystoscopy , and then laparoscopic surgery was performed under the instruction of the catheter .The catheter was immediately removed after the surgery .A total of 200 cases of laparoscopic surgery were selected as control group and preoperative ureteral catheterization was not applied in this group .The incidence rate of ureteral injury was compared between the two groups . Results The success rate of bilateral ureteral catheterization in the study group was 98.9%(180/182)and no ureteral injury occurred .In the control group, ureteral injury was found in 2 cases, which were converted to open surgery for ureter repair and double J stent was retained .The 2 cases recovered 2 months after the surgery.Bladder injury was found in 2 cases during the surgery , which received immediate repair assisted by surgeons from the department of urinary surgery and recovered 2 months after postoperative catheterization . No statistical difference was found in complication rate between the two groups ( P=0.125 ) . Conclusion The application of ureteral catheterization in complicated gynecological laparoscopic surgery can reduce the risk of intraoperative ureteral injury .

[Objective]To evaluate the safety outcome of the 12 patients with simultaneous multiple joint replacement(≥3) in the recent three years.[Method]The complication rates,blood loss,transfusion volume,and hospital stay were analyzed in details.[Result]The mean operating time was 9 hours and 8 minutes(6 hours and 25 minutes to 12 hours).The mean overall volume of blood loss was 3140ml(1 000 ml-5 600 ml.Complications included reactive digestive ulcer in one case,acetabular component position error in one case,and deep infection in one hip of one case.[Conclusion]Simultaneous multiple joint replacement is an alternative protocol to the patients with multiple joint disorders.finished under a single aesthesia and in a single hospital stay.So the overall economical cost will be decreased,and rehabilitation being accelerated.Disadvantages include serious trauma,increased blood loss,and complications may be some how increased.

[Objective]To evaluate the clinical outcome of the Ribbed anatomic cementless prosthesis.[Method]A total of 1436 hips in 956 patients undergone THR with Ribbed anatomic cementless prosthesis were reviewed.Between March 1997 and September 2005,1 249 hips in 832 patients were available for clinical and radiological follow-up.The mean follow-up period was 6.7 years with a minimum of 2 and a maximum of 10.5 years.The patients were evaluated with Harris Hip Score and radiographic analysis.[Result]The mean Harris Hip Score increased from 34.7 preoperatively to 91.5 postoperatively.Excellent and good functional improvement was seen in 96.3% of the operated patients.There was neither periprosthetic osteolysis nor evidence of loosening on follow-up radiographs.[Conclusion]Ribbed anatomic cementless prosthesis is found to be performing well with good clinical and radiological result.

Objective To investigate the protective effect of lentivirus-mediated silencing information regulation protein 6(SIRT6)overexpression on radioactive lung injury in rats.Methods 72 male 150-200 g Wistar rats were randomly divided into three groups(n=24).The 6 MV-X-ray linear accelerator was used to irradiate the lungs.The rats in each group were injected with normal saline(TNF-α)were measured at 1, 2, 4, and 8 weeks after radiotherapy(Lent-SIRT6), and the levels of tumor necrosis factor-α(TNF-IL-6 and IL-1β were measured by HE staining.The levels of TNF-α, IL-6 and IL-1β in liver tissue were detected by HE staining.The levels of TNF-α, IL-6 and IL-1β in liver tissue were detected by HE staining.Results The alveolar wall and alveolar stroma were normal in the control group.The alveolar wall of the irradiated group was thickened and fibrosis, and a large number of hypertrophic fibrous tissues were found in the alveolar stroma.The alveolar wall of Lent-SIRT6 group was thickened And alveolar stromal fibrosis symptoms were lighter than the irradiation group.Compared with the control group, the levels of serum TNF-α and IL-6, neutrophil count and the levels of TNF-α, IL-6 and IL-1β in the liver tissue were significantly higher than those in the control group (P<0.05).The lentiviruses overexpressing SIRT6 could alleviate the abnormalities caused by radiation (P<0.05).The difference was statistically significant (P<0.05).Conclusion SIRT6 can effectively inhibit the inflammatory reaction, reduce the lung injury symptoms of radiation pneumonia, and have some protective and prevention effect on lung injury.

Purpose: Detect cytokeratin 19 mRNA(CK-19 mRNA) in nucleated cells in peripheral blood from breast cancer. To establish a diagnostic method for breast cancer metastasis in peripheral blood. Methods: Peripheral blood samples in breast cancer patients (test group, n = 66) and benign tumour in breast patients ( control group, n = 37) were taken. Then, the nucleated cells were separated and total RNA extracted, and CK-19 mRNA was detected by reverse transcription polymerase chain reaction (RT-PCR) technique. Results: Samples were diagnosed CK-19 mRNA positive when 460 bp band appeared in RT-PCR end-product. The positive rate of CK-19 mRNA is 36. 36 % (24/66) in test group . None of the benign tumour breast patients expressed CK-19 mRNA. The difference between the two groups was statistically significant (P

Objective To discuss the role of combined external beam radiotherapy and intraluminal brachytherapy for tracheal cancer and bronchogenic carcinoma. Methods From February 1987 to August 1996, 4 patients with primary tracheal cancer, 22 with primary lung cancer and 14 (18 sites) with postoperative recurrent lung cancer were irradiated. External beam radiotherapy (EBR ) was delivered with linac X-ray to a total dose of 30-77?Gy (median 52?Gy). Intraluminal irradiation (IR ) was delivered with low dose rate 192 Ir (1.48?BGq) to a total dose of 10-53?Gy (median 28?Gy), 4-6?Gy per fraction on the bronchial mucosa. Results Complete response (CR) was obtained in 37 patients, partial response (PR) in 2 and minor response (MR) in 1. The 3-year and 5-year local control rates by Kaplan-Meier method were 75% and 65%. Twenty-three patients have survived for 3 years or longer, with a 3-year survival rate of 57.5%. Complications were rare. Conclusions Combined external beam radiotherapy and intraluminal irradiation is effective for primary lung cancer and localized tracheal cancer, possibly giving long-term survivals.

Accidents ; Humans ; Hydrogen Sulfide ; poisoning ; Vegetables

Objective To evaluate the feasibility, safety, and efficacy of CT-guided permanent iodine-125 implantation for malignant tumors.Methods Thirteen lesions in 10 consecutive patients with malignant tumor were treated with CT-guided iodine-125 permanent implantation brachytherapy, of which four cases were primary unresectable carcinoma and six cases were metastases. There were 4 males and (6 females,) the mean age was 56.9 years (range 54 to 62 years). Based on the CT imaging within two weeks before the implantation of the seeds, a computer-based treatment planning system was used to determine the optimal seed distribution. Subsequent CT-guided needle placement and seed implantation were carried out. Post-implant CT scans were performed immediately and five to ten months after the implantation in all cases to assess seed distribution, complication, and curative effect. Results CT-guided iodine-125 permanent implantation was accomplished smoothly in all cases. This technique offered a better seed placement. The number of seeds implanted in one lesion was 1 to 44 (mean 18.6). No acute complications and late toxicity related to the implantation were observed. Pain relief was obtained in all four patients (100%) presenting with pain. Follow-up CT demonstrated that 3 of 13 lesions disappeared completely, eight lesions diminished, and the remaining 2 lesions had no significant change in size. Mean lesion size of pre-implant and post-implant were 3.15 cm and 2.06 cm, respectively (t=5.127, P

BACKGROUND:Hidden blood loss, after total knee arthroplasty, attracts surgeons’ attention. There are various hypotheses about etiopathogenisis of hidden blood loss, but no one can reasonably explain its mechanism. OBJECTIVE:To research the correlation of free fatty acids and hidden blood loss after total knee arthroplasty, and explore the etiology and mechanism of hidden blood loss after total knee arthroplasty. METHODS:Clinical data of 42 osteoarthritis patients who underwent primary unilateral total knee arthroplasty were colected in this study. Intraoperativeand postoperative dominant blood loss was recorded. Blood samples were colected preoperatively and 24, 48, 72, and 96 hours postoperatively. Changes in hemoglobin, erythrocyte count, hematocrit and free fatty acids were detected in blood. Hidden blood loss was obtained by Gross equation. Simultaneously, stains were added to the blood smear. Changes of cels morphology were observed under a microscope. RESULTS AND CONCLUSION:(1) Hemoglobin and erythrocyte count decreased significantly at 24 and 48 hourspostoperatively, and significant differences were determined as compared with that preoperatively (P< 0.01). (2) Free fatty acids levels increased significantly within 24 hours after surgery, and decreased to preoperative levels at 72 and 96 hours later.Hidden blood loss was also significant at 24 and 48 hours after surgery, which showed positive correlation with free fatty acids content. (3) A plenty of abnormal erythrocytes were observed under the microscope. At 24 and 48 hours postoperatively, erythrocyte shrinkage and damage were mainly presented. At 96 hours, no significant abnormality was found. (4) These results indicated that free fatty acids were strongly associated with postoperative hidden blood loss. Surgeon should pay attention to the fatty droplets which may enter into the circulation in the process of reaming the femoral canal so as to reduce intraoperative total blood loss.