Objective To explore the role and significance of secretory phospholipase A2(sPLA2)in peripheral blood in preterm premature rup?ture of membranes(pPROM)and infection of amniotic cavity. Methods RT-PCR was used to detect the expression levels of sPLA2 mRNA in pe?ripheral blood of 30 patients with pPROM (experimental group),30 non-full term normal pregnant patients without pPROM (normal control group)and 30 full term patients with PROM(full-term control group)before and after delivery. Fetal membranes were collected at the time of deliv?ery of patients with pPROM for pathologic examination to determine histological chorioamnionitis(HCA). Results The expression levels of sPLA2 mRNA in peripheral blood were 1.079±0.746 and 0.651±0.481 in the experimental group and the normal control group before delivery,respectively, indicating that the expression of sPLA2 mRNA was increased in the experimental group compared with the normal control group(P=0.011). The expression levels of sPLA2 mRNA in peripheral blood were 2.439±0.086 and 2.575±0.036 in the experimental group and the full-term control group at labor onset,respectively,indicating that there was no statistically significant difference in the level of sPLA2 mRNA in peripheral blood between the experimental group and the full-term control group at labor onset(P=0.787). The level of sPLA2 was related to chorioamnionitis in the experi?mental group at labor onset. Conclusion The increase of sPLA2 may participate in the pathogenesis of preterm premature rupture of membranes and is related with the infection of chorioamnionitis.

Objective To investigate the expression and clinical significance of B7-H1 in normal thyroid tissues adjacent to nodular goiter and thyroid papillary carcinoma.Methods Immunohistochemistry EnVisionTM two step staining method was used to monitor tumor expression of B7-H1, its relationship with clinicopathological features was analyzed.Results The positive reaction of B7-H1 material as brown granules showed positive in cytoplasm, with occasional cell nuclear staining.Positive expression of B7-H1 in papillary thyroid carcinoma tissues 58.2％ (39/67) was significantly higher than that 12.5％ (2/16) of expression of B7-H1 in the normal thyroid tissues adjacent to nodular goiter.B7-H1 in thyroid papillary carcinoma score 2.94 ± 1.843 was significantly higher than the score 0.88 ± 1.204.(P ＜ 0.01) of B7-H1 in the normal thyroid tissues adjacent to nodular goiter.The average rank of B7-H1 expression in poorly differentiated papillary thyroid carcinoma 40.92 was significantly higher than the average rank expression in papillary thyroid carcinoma with high differentiation in 27.18 and 34.67, the average rank expression in lymph node metastasis in papillary thyroid carcinoma was significantly higher than 35.93 of the average rank expression without lymph node metastasis in papillary thyroid carcinoma (18.75, P ＜0.01).Conclusions The expression of B7-H1 was significantly higher in papillary thyroid carcinoma than in normal thyroid tissue, and was positively correlated with the degree of differentiation and lymph nodes.

Objective To investigate the clinical efficacy of hemocoagulase for severe hemorrhagic cystitis (HC) following allogeneic hemotopoietic stem cell transplantation (HSCT). Methods Twenty patients undergoing allogeneic HSCT developed severe HC with an onset time of 14 to 70 days, all patients received the treatment of hemocoagulase (1 U ivgtt q12 h × 5 d). The urine speciments reserved before and after hemocoagulase were examined by naked eye and microscope to evaluate the efficacy. Results Twenty patients received the treatment of hemocoagulase. The HC was cured in 18 patients, improved in 1 patient and uncontrolled in 1 patient. For the patients with response, macroscopic hematuria disappeared at a median of 28 days (4-127 days) after the treatment. All procedures were tolerated well and no severe adverse effect was observed. Conclusion Hemocoagulase seems to be a safe and effective drug for severe HC following HSCT.

INTRODUCTIONThis study aimed to evaluate the clinical and radiological outcomes, and safety and efficacy of percutaneous pedicle screw fixation (PPSF) in the treatment of thoracolumbar burst fractures.

METHODSThis was a retrospective review of patients with thoracolumbar burst fractures treated with PPSF in a single hospital from 2010 to 2011. Baseline data included patient demographics, mechanism of injuries, fracture level, neurologic status and the number of percutaneous screws inserted. Kyphotic angle correction, vertebral body height restoration and mid-sagittal canal diameter improvement were used to assess radiological outcome. Screw misplacement, operative complications, functional improvement (ASIA score) and pain score on visual analogue scale were used to assess safety and clinical outcomes.

RESULTS21 patients with 25 thoracolumbar burst fractures were treated with 134 percutaneous screws. There was significant improvement in kyphotic angle correction (mean difference 6.1 degrees, p = 0.006), restoration of anterior and posterior vertebral height (mean difference 19.7%, p < 0.01 and mean difference 6.6%, p = 0.007, respectively) and mid-sagittal canal diameter (mean difference 15.6%, p = 0.007) on discharge. These improvements remained statistically significant at six months post operation for restoration of anterior vertebral body height (mean difference 9.8%, p = 0.05) and mid-sagittal diameter (mean difference 30.0%, p < 0.01).

CONCLUSIONIn this first local review, we have shown that PPSF is a relatively safe and effective technique for treating selected thoracolumbar burst fractures, and that it yields satisfactory results. However, its long-term outcome and efficacy need to be further evaluated.

Adult ; Aged ; Bone Screws ; Female ; Fracture Fixation, Internal ; adverse effects ; instrumentation ; methods ; Humans ; Lumbar Vertebrae ; injuries ; Male ; Middle Aged ; Minimally Invasive Surgical Procedures ; Radiography ; Retrospective Studies ; Safety ; Singapore ; Spinal Fractures ; diagnostic imaging ; surgery ; Thoracic Vertebrae ; injuries ; Treatment Outcome

Objective:To study the specific mechanism of LINC01018 involved in the pathogenesis of colon cancer.Methods:The expression of LINC01018 in colon cancer tissues and cells and normal colon tissues and cells were detected by real time fluorescence quantitative polymerase chain reaction (qRT-PCR). HT-29 cell line which overexpresses LINC01018 stably was established. RNA binding protein immunoprecipitation (RIP) assay was used to detect the interaction between LINC01018 and E2F1 protein. Dual luciferase assay was used to detect the regulatory effect of E2F1 on CDK6 promoter. The expression of E2F1 or CDK6 was up-regulated in HT-29 cell line which overexpresses LINC01018, then the proliferation, invasion and migration of HT-29 cells and the expression of CDK6 and matrix metalloproteinase-2 (MMP-2) in HT-29 cells were detected by cell counting method (CCK-8) assay, Transwell assay and Western blot.Results:The expression of LINC01018 was abnormally low in colon cancer tissues and cells. The result of RIP assay showed that LINC01018 interacted with E2F1 protein. The result of dual luciferase assay showed that E2F1 protein could enhance the efficiency of CDK6 promoter, and E2F1 had a positive regulatory effect on CDK6. Overexpression of LINC01018 could attenuate the positive regulatory effect of E2F1 on CDK6. Up-regulation of E2F1 or CDK6 expression could attenuate the effects of LINC01018 overexpression on the proliferation, invasion, migration and expression of CDK6 and MMP-2 in HT-29 cells.Conclusions:The expression of LINC01018 was abnormally low in colon cancer tissues and cells. LINC01018 may regulate the proliferation, invasion and migration of HT-29 cells through E2F1/CDK6/MMP-2 axis, and participate in the pathogenesis of colon cancer.