[Objective]To investigate results of surgical treatment of intradural tumors of the cervical spinal cord.[Method]Twenty-one cases with cervical intradural tumor were treated surgically under posterior approach from 1999 to 2005,all patients were performed cervical laminae resection before tumor resection,and some received internal fixation.All patients were followed up for 8 months to 38 months respectively.All the clinical materials were analyzed retrospectively.[Result]All patients survived the operation,symptoms disappeared 13,relieved 7 and deteriorated 1.Total resection in 15 cases,subtotal 4 cases and partial 2 cases.[Conclusion]To succeed the operation,it is very important to make clear the location and size of the tumor and the relationship between the tumor and spinal cord;in order to gain total resection of tumor,both careful protection of spinal cord and vertebral artery and intraspinal cannal veins are essence.

[Objective]A new device of gear-distraction plate (GDP) for spine reduction and fixation was designed and its biomechanical characteristics was evaluated.[Method]The GDP implants were made of titanium alloy (TC4,Ti6AL4V) and the instruments were made of stainless steel after design.Eighteen fresh calf lumbar specimens were randomly divided into three groups, the GDP group had a biomechanical test contrast to control group(CD, Steffee) in load-responsive change, load-displacement, strength, stiffness, torsion intensity and ultimate strength.[Result]Results It is better than control group in load-responsive change, load-displacement, strength, stiffness, torsion intensity and ultimate strength, there was a significant difference between them (P

Objective To evaluate the normalized correction effect of the ROX reference fluorescence on the real-time quantitative RT-PCR assessment for the Nrf2 mRNA.Methods The Taq-man probe was utilized in the real-time quantitative RT-PCR method to assess the Nrf2 mRNA; The reaction specificity of the Nrf2 PCR products obtained from the rat cDNA was assessed using gel electrophoresis and sequencing identification.The PCR calibrators with different concentrations varied at 10 gradients(from 2.0 × 109 to 2.0 × 100) were prepared for real-time quantitative RT-PCR assessment,and then the influence of the ROX reference fluorescence correction on the linear range of the PCR standard curve was investigated experimentally.The recombinant plasmids with different concentration levels(e.g,high,medium or low concentration) were assessed by the real-time RT-PCR and 20 replicate measurements were performed for all the samples in both intra- and inter-assays.The repeatability differences of both the inter- and intra-assays were analyzed systemically with/without the ROX reference fluorescence correction.Results The primers and probes required for Nrf2 mRNA real-time quantitative RT-PCR assessments were constructed,and the reaction system and conditions were also established.The length of the amplified fragment agreed well with the expected length(122 bp),and the sequencing analysis showed the amplified fragment was verified by the sequencing identification.After applying the ROX reference fluorescence correction,the linear range ofthe PCR standard curve was measured as 2.0 × 109 -2.0 × 100 copies/μl(R2 ＞ 0.99),which was 100times wider than that measured without ROX reference fluorescence correction(2.0 × 109 - 2.0 × 102copies/μl,R2 ＞ 0.99).Without the ROX reference fluorescence correction,the intra-assay CVs of the Ct value were measured as 4.1%,2.7% and 2.1% for the recombinant plasmids with high-,medium-,and low-level concentration,respectively.The inter-assay CVs of the Ct value were 4.3% 、3.0% 、2.4%.By contrast,with the ROX reference fluorescence correction,the intra-assay CVs of the Ct value became 0.7%,0.5%,0.4% and the inter-assay CVs of the Ct value turned to 1.0%,0.8% and 0.7%.The discrete degree of the Ct value with the correction was lower than that without the correction.The intra- and interassay Ct values of the high- and medium-level samples exhibited statistic significance for the measurements with/without the correction.In the high-level group,the t values of the intra- and inter-assays were 4.843 and 2.566,with P＜0.05.In the medium-level group,the t values of the intra- and inter-assays were 4.293 and 4.423,with P＜0.05.However,no statistic significance was observed the low-level group(the t values of the intra- and inter-assays were 0.753 and 1.279,with P ＞.0.05).Conclusions The utilization of the ROX reference fluorescence in the real-time quantitative PCR assessment for Nrf2 mRNA could widen the linear range of the standard PCR calibration curve and improve the repeatability of the assessment,which should be quite helpful for accurately assessing the expression level of the Nrf2 mRNA.

Objective To investigate and analyze the clinical effect of shoulder joint impingement syndrome treated with shoulder arthroscopy combined with drugs.MethodsFrom January 2015 to December 2016, 20 patients suffering from impingement syndrome in People's Hospital of Fenghua District were selected as the subjects in this study.Randomly selected patients were divided into the control group and the experimental group two groups, each group of patients were 10 cases.The control group in patients with arthroscopic exploration plus subacromial decompression molding, experimental group was given drug treatment on the basis of the control group, before the end of surgery in patients with intra-articular injection of sodium hyaluronate and Compound Betamethasone Injection.The therapeutic effects of the experimental group and the control group were compared.ResultsAfter the corresponding treatment, there were no complications in the experimental group and the control group.The VAS scores, shoulder abduction and external rotation angles of the experimental group and the control group were significantly higher than those of the control group, with statistical difference (P<0.05).After treatment, the VAS score of the experimental group was (1.7±0.3) points, the external rotation angle was (36.5±13.5) degrees, and the shoulder abduction was (110.5±3.7) degrees.The score of VAS in the experimental group was significantly lower than that in the control group, and there was a statistical difference (P<0.05).ConclusionThe clinical effect of arthroscopic subacromial impingement syndrome combined with drug treatment, can effectively relieve the pain of the patients, improve the patient's shoulder to a certain extent, with further clinical promotion and application significance.

OBJECTIVE:To excavate and evaluate the security alert signals of linezolid after marketing,and to provide refer-ence for rational drug use in clinic. METHODS:The reporting odds ratio(ROR)method was used to excavate the security alert signals from the adverse drug events(ADE)data in the OpenFDA platform of FDA during second quarter of 2004-2016. The low-er limit of 95%CI >1 was regarded as suggestive of ADE alert signal. RESULTS:A total of 6828534 reports were extracted, among which there were 7224 reports mainly induced by linezolid. Top 10 ADE reports were thrombocytopenia,drug interac-tion,thrombocytopenia,nausea,anaemia,serotonin syndrome,diarrhoea,pyrexia,drug ineffective,vomiting. After the detec-tion of top 200 ADE reports by ROR method,120 signals related to 18 system organ class(SOC)were identified. Top 5 ADE sig-nals in turn by SOC were medical examination,nervous system disorders,blood and lymphatic system disorders,metabolism and nutrition disorders,cardiac disorders. The high risk signals with clinical reference value included 42 cases of optic neuropathy (ROR=56.33),350 cases of serotonin syndrome(ROR=52.86),162 cases of lactic acidosis(ROR=18.30),31 cases of endo-carditis (ROR=15.38),566 cases of thrombocytopenia (ROR=14.29),122 cases of bone marrow failure (ROR=14.20),261 cases of panhematopenia (ROR=11.92),86 cases of disseminated intravascular coagulation (ROR=10.91),58 cases of toxic epidermal necrolysis(ROR=9.06),etc. As for ADE reports,male was slightly higher than female,and the patients in age group of ≥45 reported evidently more compared to younger age group. CONCLUSIONS:By detecting and evaluating alert signals of li-nezolid through OpenFDA platform,we could effectively lay the foundation for further research of pharmacovigilance.

Objective To evaluate the technique and clinical effect of arthroscopic treatment of anterior cruciate ligament tibial eminence avulsion fracture with suture bridge fixation technique. Methods From May 2013 to July 2015, 18 patients with anterior cruciate ligament tibial eminence avulsion fracture were treated with arthroscopic re﹣duction and fixation by suture bridge technique. There were 12 males and 6 females with an average age of 29.8 years old (range, 9~45 years). The right knees were involved in 10 cases and left knees in 8 cases. The injury caus﹣es included traffic accident injury in 10 cases, sports injury in 5 cases and other reasons in 3 cases. 2 patients had old fracture, the others had fresh fracture. The results of Lachman and anterior drawer test were both positive. The International Knee Documentation Committee (IKDC) subject score was (53.8 ± 4.2). Based on Meyers-Mckeaver classification, there were 5 cases in typeⅡ, 10 cases in type Ⅲ and 3 cases in type Ⅳ. Results The operation time was 50~80 minutes (mean, 60.5 minutes), X-ray showed satisfactory fracture reduction after surgery. Primary healing of incision were obtained with no infection, all 18 patients were followed up for 6 ~ 31 months (mean, 18.6 months). The results of Lachman and anterior drawer test were both negative in 17 cases, the result was negative for anterior drawer test and was weakly positive for Lachamn test in 1 case. The IKDC subject score were significantly improved to (95.2 ± 3.8) at last follow-up (P< 0.05). Conclusion It could achieve early restoration of knee joint function to treat the anterior cruciate ligament tibial eminence avulsion fracture with suture bridge fixation technique because of satisfactory reduction, reliable fixation, minor trauma, and quick recovery.

OBJECTIVE:To investigate the general regularity and characteristics of propylthiouracil (PTU)-associated small vasculitis (ASV),and to provide reference for rational drug use in the clinic. METHODS:ADR/ADE case reports of PTU-ASV published during 1990-2016 were retrieved. The data of 118 ADR cases were analyzed statistically. RESULTS:The incidence of PTU-ASV was higher in female and was highest in 18-59 age group. Drug dose of 87 patients were within 600 mg/d,and the inci-dence of PTU-ASV was the highest within 1-5 years after medication. Main clinical manifestations were renal and lung function in-jury. After drug withdrawal,59 patients received hormone therapy,and 30 patients received hormone combined immunosuppressive agent. Finally,115 patients were recovered and 3 patients died. CONCLUSIONS:In older to reduce or avoid the occurrence of ADR,it is necessary to regularly check antineutrophil cytoplasmic antibody related indexes and evaluate the symptoms of ADR.

Objective:To investigate the effects of standardized treatment combined with medical nutrition intervention on blood glucose level, body mass management and glucose metabolism at 3 months postpartum in patients with gestational diabetes mellitus (GDM).Methods:A total of 114 patients with GDM who received treatment in Shunyi District Hospital of Beijing from June 2017 to October 2019 were included in this study. They were randomly divided into observation group ( n = 57) and control group ( n = 57). The control group was treated with standardized therapy, and the observation group was treated with standardized therapy combined with medical nutrition intervention. Blood glucose level, body mass management, glucose metabolism outcomes at 3 months postpartum, pregnancy outcome, and neonatal outcome were compared between the two groups. Results:After treatment, hemoglobin A1c (HbA1c), fasting blood glucose, 2-hour plasma glucose (2hPG) after breakfast, and 2hPG after dinner in the observation group were (5.20 ± 0.34)%, (4.69 ± 0.31) mmol/L, (7.32 ± 2.13) mmol/L, and (7.54 ± 2.36) mmol/L, respectively, which were significantly lower than those in the control group [(6.38 ± 0.42)%, (6.34 ± 0.45) mmol/L, (9.01 ± 2.27) mmol/L, (9.35 ± 2.47) mmol/L, t = 16.48, 22.79, 4.09, 4.00, all P < 0.001]. The increases in body mass and body mass index during pregnancy in the observation groups were (12.19 ± 2.35) kg and (4.52 ± 1.13) kg/m 2, respectively, which were significantly lower than those in the control group [(16.21 ± 2.64) kg, (6.11 ± 1.25) kg/m 2, t = 8.58, 7.12, both P < 0.001]. The abnormal rate of glucose metabolism at 3 months postpartum in the observation group was significantly lower than that in the control group [5.3% (3/57) vs. 8.8% (5/57), χ2 = 0.53, P = 0.462]. The incidences of premature rupture of membranes, polyhydramnios, and cesarean section in the observation group were 5.3% (3/57), 14.0% (8/57) and 15.8% (9/57), which were significantly lower than those in the control group [22.8% (13/57), 35.1% (20/57), 40.4% (23/57), χ2 = 7.27, 6.81, 8.51, all P < 0.05]. There were no significant differences in the incidences of pregnancy-induced hypertension and postpartum hemorrhage between the two groups (both P > 0.05). The incidences of premature births, macrosomia, respiratory distress, neonatal hypoglycemia and hyperbilirubinemia in the observation groups were 5.3% (3/57), 3.5% (2/57), 7.0% (4/57), 3.5% (2/57), 5.3% (3/57), respectively, which were significantly lower than those in the control group [22.8% (13/57), 17.5% (10/57), 21.1% (12/57), 15.8% (9/57), 19.3% (11/57), χ2 = 7.27, 5.96, 5.60, 4.93, 5.21, all P < 0.05). Conclusion:Standardized treatment combined with medical nutrition intervention can effectively reduce blood glucose level in patients with GMD, control body mass, and improve glucose metabolism at 3 months after delivery.

Objective:To study the role of a novel brain-derived peptide hypoxic-ischemic brain damage associated peptide (HIBDAP) in regulating pyroptosis of oxygen-glucose deprived (OGD) microglia.Methods:The sequence of HIBDAP was coupled with the sequence of cell-penetrating peptide transactivator of transcription (TAT) to form TAT-HIBDAP. Fluorescein isothiocyanate (FITC) labeled TAT-HIBDAP was added to microglia cells and observed under fluorescence microscope. Microglia cells were treated with different concentrations of TAT-HIBDAP (1, 5, 10, 20 μmol/L) and then OGD process. Cell pyroptosis was analyzed using lactate dehydrogenase (LDH) assay. The concentration of TAT-HIBDAP with the most prominent inhibiting effects was determined and selected for subsequent experiments. The pyroptosis morphology of the control group, the OGD group and the HIBDAP group (5 μmol/L TAT-HIBDAP+OGD) was observed using transmission electron microscope. The mRNA and protein expression of NOD-like receptor family pyrin domain containing 3 (NLRP3) inflammasomes were examined using real-time quantitative PCR and Western Blot analysis.Results:Fluorescence microscope showed FITC-labeled TAT-HIBDAP could successfully enter microglia cells. Compared with the OGD group, low concentrations of TAT-HIBDAP (1, 5, 10 μmol/L) could significantly reduce microglia pyroptosis and the concentration of 5 μmol/L showed the most prominent effects. Compared with the control group, OGD group showed typical pyroptosis morphology and HIBDAP group showed significantly improved morphology. The mRNA and protein expression of NLRP3 inflammasomes in the OGD group were significantly higher than the control group and also the HIBDAP group.Conclusions:The novel brain-derived peptide HIBDAP may reduce the expression of NLRP3 inflammasomes and inhibit the pyroptosis of OGD microglia.

Rectal cancer is one of the most common gastrointestinal malignancies in China. Accurate and reasonable assessment of the preoperative staging of rectal cancer can significantly enhance treatment outcomes and improve patient prognosis. Magnetic resonance imaging is the technique of choice for local staging of rectal cancer and has significant advantages in the diagnosis of rectal primary tumors (T) and peri-intestinal lymph nodes (N). In this review paper, the research ideas and progress of traditional radiomics and deep learning methods for preoperative TN staging prediction of rectal cancer were reviewed around multimodal magnetic resonance images, with the aim of providing new ideas for realizing fully automated TN staging algorithms for rectal cancer.