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Objective To explore the correlation between BCL2 binding component 3 (BBC3) expression and postoperative survival time of lung squamous cell carcinoma (LUSC),and investigate its molecular mechanism.Methods The expression of BBC3 in 39 patients was detected by using qRT-PCR assay.Meanwhile,clinical data of all patients were collected by follow-up visit.Then,the survival analysis was performed by using Kaplan-Meier and log rank tests.Moreover,multiple factors analysis was performed using COX proportional hazard model.At last,BBC3 was over-expressed in NCI-H226 cell lines,then detected the effects of BBC3 expression on cell proliferation and apoptosis by using MTT assay and flow cytometry.Results BBC3 expression were significantly correlated with the tumor metastasis (r=0.556,P=0.023),tumor size (r=0.532,P =0.042),T staging (r =0.551,P=0.021) and TNM staging (r=0.524,P=0.047).Meanwhile,the results of Kaplan-Meier and log rank tests found that BBC3 expression was significantly correlated with survival time of patients with LUSC,and the length of survival time in patients with high BBC3 expression was longer than that in patients with low BBC3 expression (x2 =7.542,P=0.006).The COX proportional hazard model indicated that tumor metastasis,T staging,TNM staging and BBC3 expression were independent factors which significantly affected survival time.Moreover,the proportion of apoptotic cells in the recombinant plasmid BBCs group was higher than that in the empty plasmid group and control group (P＜0.05).Conclusion BBC3 expression could suppress the proliferation of tumor cells and promote apoptosis,and are significantly correlated with survival time of patients,so which may be assistant biomarkers for prognosis of LUSC.
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Objective To explore the curative effect of the single pore video-assisted thoracoscopic surgery and thoracic closed drainage for patients with acute pyothorax by comparing the advantage and disadvantage of two methods.Methods The clinical data of 65 patients with acute pyothorax in our hospital from January 2012 to June 2015 were retrospectively analyzed.Of which 30 patients underwent single pore video-assisted thoracoscopic surgery were as observation group,35 cases received thoracic closed drainage were as the control group.The cura-tive effect of two methods for acute pyothorax was compared by analyzing the result data of two groups.Results The postoperative chest tube indwelling time,length of hospital stay,postoperative antibiotics of observation group were significantly less than those of the control group,the difference was statistically significant(P<0.05).And the incidence of postoperative complications,the proportion of the chronic pyothorax and secondary tube rate of observation group were lower than those of the control group,the difference was statistically significant(P<0.05). Conclusion The single pore video-assisted thoracoscopic surgery is safe and effective for treatment of acute pyothorax, which is worth promoting.
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<p><b>OBJECTIVE</b>To compare the accuracy of intaoperative methylene blue alone and in combination with (99m)Tc-sulfur colloid isotopic tracing for detection of sentinel lymph nodes (SLNs) in early-stage non-small cell lung cancer (NSCLC).</p><p><b>METHODS</b>Sixty-one patients with operable NSCLC who did not receive previous radiotherapy or chemotherapy were enrolled. Methylene blue and (99m)Tc-sulfur colloid were injected into the subserosal layer adjacent to the tumor, and SLNs were defined as those with blue staining or those containing 3 times more radioactivity than the surrounding tissue detected with a gamma probe. The SLN were removed with systematic lymph node dissection. All the removed lymph nodes were examined histopathologically with HE staining and immunohistochemistry.</p><p><b>RESULTS</b>Methylene blue alone showed a low detection rate (60.0%) and sensitivity (58.33%) for SLNs compared with the combination of methylene blue and isotope tracing (96.15% and 92.86%, respectively).</p><p><b>CONCLUSION</b>The combination of methylene blue and (99m)Tc-sulfur colloid isotopic tracing allows accurate detection of the SLNs in early-stage NSCLC.</p>