Abscess ; etiology ; Adult ; Humans ; Male ; Nasal Septum ; pathology ; Tooth, Impacted ; complications

Adult ; Female ; Humans ; Nasal Polyps ; Sphenoid Sinus

Acro-Osteolysis ; etiology ; Child ; Follow-Up Studies ; Hereditary Sensory and Autonomic Neuropathies ; complications ; Humans ; Male

Objective To study the clinical manifestations, radiological features, andpostoperative outcomes of patients with subependymal giant cell astrocytoma (SEGA). Methods Aretrospective analysis of the clinical presentations, imaging examinations, pathological features,treatments and follow-up results was conducted in 6 SEGA cases treated in our department from 2000 to2007. Results The most common clinical maifestations of SEGA included increased intracranialpressure and impaired visual acuity. CT scan of the tumors displayed isodensity or slightly increaseddensity with well defined border. Calcification was seen in some of the tumors. On T1-weighted magneticresonance images, the tumor masses presented with isointense or mixed signals, while on T2-weightedimages, the tumors exhibited isointense or hyperintense signals. The solid part of the tumor showedheterogeneous enhancement in contrast-enhanced imaging. No operative death occurred in these casesafter total removal of the tumors through a transcallosal approach (4 cases) or a frontal transcorticalapproach (2 cases). No postoperative tumor recurrence was found in the follow-up for 10 months to 8years. Conclusion The diagnosis of SGCA should be considered for the presence of tuberous sclerosisin the subependymal lesion adjacent to the foramen of Monro in cases presenting hydrocephalus orprogressive tumor growth. Surgical resection of the tumor should be performed as early as possible.SGCA is a benign tumor with good prognosis after a total resection. Regular follow-up examinationshould be undertaken to monitor the subependymal nodules for prevention of tumor recurrence.

Objective To investigate the effect of electro-acupuncture (EA) on neurocan expression in the peri-infarct cortex in rats after middle cerebral artery occlusion (MCAO). Methods Ninety SD rats were randomly divided into sham-operated group (SO), MCAO group and EA treatment group (ET). Heat-coagulation method was used to establish MCAO in the rats in the latter two groups. The rats in the ET group received EA treatment at the acupoints Neiguan, Waiguan, Zusanli and Sanyinjiao for 1, 2, 3, or 4 weeks after MCAO. Immunohistochemistry, quantitative real-time RT-PCR and Western blotting were used to detect the expression of neurocan in the peri-infarct cortex after the treatment. Results Neurocan expression was detected in and around the GFAP-positive cells near the cerebral infarct foci following MCAO. Neurocan mRNA in rats with MCAO increased significantly 1 week after MCAO, reaching the peak level (0.806±0.224) in the second week and maintained the high expression level till 4 weeks after MCAO. In the EA treatment group, neurocan mRNA began to decrease in the first week of EA treatment followed by gradual decrease till reaching the lowest level (0.031± 0.018) in the 4th week of EA treatment. In the rats in MCAO group, the expression of neurocan protein increased progressively 1 week after MCAO and reached the highest level in the fourth week (0.878± 0.049); EA treatment significantly reduced neurocan expression in the second week of treatment, and resulted in the lowest expression level (0.292±0.042) in the fourth week of treatment. All these differences were statistically significant (P<0.05). Conclusions EA treatment can inhibit the expression of neurocan in the peri-infarct area, which might be one of the mechanisms of EA to reduce glial scar formation after cerebral infarction.

Objective To explore the changes of expression of uncoupling protein 2 (UCP2) in pressure overload induced failure myocardium in rats. Methods Male SD rats were randomized into 3 groups ( n = 15 each): abdominal aorta constriction ( AC) 20 weeks group ( H20w group) , sham operation group (SH20w group) and normal control group (N group). Twenty weeks later, myocardial function was evaluated by echocardiography and hemodynamic measurements. Mitochondria in ventricular tissue were isolated by centrifugation. Adenine nucleotide pools (ATP, ADP, AMP, PCr) in myocardium were measured by high performance liquid chromatography. The expression of UCP2 in mitochondria was detected by PT-PCR and Western blot analysis. Results Myocardial function was significantly decreased 20 weeks post-AC compared to SH20w group and N group. Myocardial ATP, ADP, AMP and PCr contents were also significantly decreased in H20w group than the other 2 control groups. The expression of UCP2 in myocardial mitochondria was significantly increased in H20w group and negatively correlated with ATP contents (r= -0.929,P<0. 01). Conclusions The expression of UCP2 was upregulated in pressure overload induced failure heart and might be responsible for decreased myocardial adenine nucleotide and energy metabolism disturbance in this model.

Objective To explore the risk factors and clinicopathologic characteristics of severe hand,foot and mouth disease (HFMD),and to provide a scientific basis for clinical interventions.Methods The clinical data of 2606 hospitalized children with HFMD in Ningbo No.2 Hospital were analyzed retrospectively from January 2010 to December 2012.Clinical characteristics were compared between two groups (regular case group and severe case group),and risk factors of severe HFMD were analyzed by Logistic regression test.The clinicopathologic features were analyzed from an autopsy case.Results Among total 2606 cases,619 cases were severe HFMD (23.7％).Logistic regression test showed that EV71 infection,poor spirit,blood glucose ＞ 9 mmol/L,high fever (temperature ≥ 39.1 ℃) lasted more than three days,younger than 3 years and abnormal neural reflex were the independent risk factors of HFMD seriousness.The results of the autopsy showed that the central nervous system,lung and intestinal were most severely.Conclusion Attention should be paid to observe the condition changes in HFMD patients with EV71 infection,younger than 3 years,nervous system symptoms,blood glucose ＞ 9 mmol/L and high fever.Targeted clinical intervention is particularly important for improving cure rate,and the protection of intestinal function can't be ignored.

This study was aimed to construct the shRNA eukaryotic expression vectors of M2-pyruvate kinase gene (pkm2) and to investigate the effects of pkm2 gene interference on the drug resistance of acute promyelocytic leukemia (APL) cells in vitro. Three specific shRNAs of pkm2 gene were designed and cloned into PBSU6 vector containing a U6 promotor. The constructed plasmids were identified and proved by the restriction sequence analysis. Then the effect of pkm2-shRNA on the protein expression of endogenous PKM2 was detected in NB4R2 cells, a drug resistant cell line of APL by Western blot. The alteration of NB4R2 cell differentiation with the interference of pkm2 gene was also validated by nitroblue tetrazolium (NBT) reduction test. The results showed that three specific shRNA eukaryotic expression vectors targeting pkm2 were successfully constructed. The efficiency of pkm2 gene silence was proved at protein level. The interference of pkm2 gene could significantly enhance the cell differentiation in the drug resistant NB4R2 cell line. It is concluded that the DNA vector containing pkm2 targeting shRNA remarkably promotes the differentiation of NB4R2 cells, showing the prospects of developing the gene target drug.
Bacterial Proteins ; genetics ; Cell Line, Tumor ; Drug Resistance, Neoplasm ; genetics ; Genetic Vectors ; Humans ; Leukemia, Promyelocytic, Acute ; genetics ; Plasmids ; Protein-Serine-Threonine Kinases ; genetics ; RNA Interference ; RNA, Small Interfering ; genetics

Objective: To evaluate the outcomes and prognostic factors of myelodysplasia syndrome (MDS) patients who received allogeneic hematopoietic stem cell transplantation (allo-HSCT) . Methods: 165 cases of MDS who underwent allo-HSCT from Jan. 2010 to Mar. 2018 were analyzed retrospectively, focusing on the overall survival (OS) , disease free survival (DFS) , relapse, non-relapse mortality (NRM) and their related risk factors. Results: Of all the 165 cases, 105 were male and 60 were female. The 3-year OS and DFS rate were 72.5% (95%CI 64.9%-80.1%) and 67.4% (95%CI 59.17%-75.63%) , respectively. The 3-year cumulative incidence of relapse and NRM were 12.11% (95%CI 7.03%-18.65%) and 20.44% (95%CI 14.15%-27.56%) , respectively. HCT-comorbidity index (P=0.042, HR=2.094, 95%CI 1.026-4.274) was identified as independent risk factor for OS by the multivariate analysis. Intensive chemotherapy before HSCT or hypomethylation agents treatment had no effects on OS[ (67.0±7.5) %vs (57.7±10.9) %, χ(2)=0.025, P=0.874]. Conclusions: allo-HSCT is a promising means for MDS, and NRM is the major cause of treatment failure. MDS with refractory anemia with excess blasts and secondary acute myeloid leukemia patients may not benefit from intensive chemotherapy or hypomethylation agents treatment before HSCT.
Female ; Hematopoietic Stem Cell Transplantation ; Humans ; Male ; Myelodysplastic Syndromes/therapy* ; Prognosis ; Retrospective Studies ; Transplantation Conditioning ; Transplantation, Homologous