Objective To observe the morphologic change in rats with pulmonary fibrosis induced by bleomycin through antisense-human tissue inhibitor of metalloproteinase-1(hTIMP-1)transfection.Methods Thirty rats were divided into five groups randomly(six rats in each group),namely,hTIMP-1 transfection group,anti-sense hTIMP-1 transfection group,empty retroviral vectors transfection group,pulmonary fibrosis group,and the normal group.On the 1st,3rd,7th,14th,28th,60th,90th day of BLM administration to the hTIMP-1,anti-sense hTIMP-1 and retroviral vectors transfection group,the hTIMP-1 cDNA retroviral vectors containing sense and anti-sense ones and the empty vectors were conducted into the lungs of rats with pulmonary fibrosis,which were sacrificed on the 28th days.The pulmonary fibrosis group was given just BLM for the same period of time.The rats in the normal control groups were sacrificed on the same day.Observe the role of anti-sense hTIMP-1 transfection and the change of hydroxyproline.Results The degree of fibrosis and content of HYP were extenuated by antisense hTIMP-1 transfection on 1st and 3rd day after BLM exposure compared with the same time of fibrosis and transfection by empty retroviral vectors group,morphologically.Conclusion Transfection with antisense-TIMP-1 on the first and third day can suppress the process of pulmonary fibrosis induced by BLM to some extent.

Objective To study the abdominal perineal resection for rectal cancer and clinical application of pelvic floor recon-struction .Methods 30 cases of rectal cancer patients from 2008-2011 were randomly divided into experimental group and the con-trol group ,30 cases in each group .Experimental group patients by columnar abdominal perineal resection of rectal cancer treatment , postoperative pelvic floor defect for dermal matrix reconstruction .The control group patients for colorectal cancer resection by lapa-rotomy .Results Compared with the traditional open resection ,the operation time ,intraoperative blood loss ,postoperative patholog-ical column T3 N0 M0 positive rate ,incidence of complications and incision aspect of cylindrical abdominal perineal resection were ob-vious advantages ,the difference was statistically significant (P< 0 .05) .Conclusion Compared with Miles surgery ,cylindrical ab-dominal perineal resection for rectal cancer can reduce the incidence of postoperative incisal edge positive rate and bowel perfora -tion .Human decellularized dermal matrix basin redevelopment can significantly reduce the surgical risk and difficulty of surgical op-erations .

Objective To evaluate efficiency of brain metastases tumor using X-knife under farctionational stereotactie radiotherapy (FSRT) combine with whole brain radiotherapy (WBRT). Methods Retrospective comparing 51 patients treated by FSRT plus WBRT (FSRT + WBRT group) with 35 patients treated by WBRT alone (WBRT group) on the effecting rate and survival rate. Results The completeness response rate was 49 % and 26 % (P < 0.05) in FSRT + WBRT and WBRT groups, respectively. The effecting rate was 80 % and 71 % (P 0.05) in FSRT + WBRT and WBRT groups, respectively. The middle survival time was (11.0 ± 1.5) months and (6.5 ± 0.5) months (P < 0.05) in FSRT + WBRT and WBRT groups, respeetivley. The 0.5-, 1.0- and 1.5-years survival rate was 63 % and 41 % (P 0.05), 51 % and 23 % (P 0.05) and 24 % and 9 % (P < 0.05) in FSRT + WBRT and WBRT groups, respectively. Conclusions The method with FSRT plus WBRT in the treatment of brain metastases tumor is safe and relieved focal symptom of patients quickly with lesser injury on normal tissue and the survival time be prolonged, it has better therapeutic effects than WBRT alone for treating brain metastases tumor.

Resveratrol is a natural polyphenolic substance with a variety of bioactivities,such as anti-oxidation,anti-tumor and apoptosis induction.This paper summarized the recent research progress of resveratrol induced cancerous cell apoptosis,including human cervical cancer HeLa cells,leukemia cells,hepatoma cells and gastric cancer cells,and analyzed the molecular mechanism behind resveratrol-induced cell apoptosis in tumor.In addition,resveratrol was investigated by blocking the cell cycle,regulating the expressions of related genes and proteins and mitochondria-induced apoptosis pathways as a potential application of cancer drugs to clinical researches.

Objective To investigate the risk factors for early neurological deterioration (END) in patients with acute middle cerebral artery infarction.Methods From January 2009 to December 2012,81 patients with acute middle cerebral artery infarction completed cerebral angiography admitted to the Department of Neurology,Nanjing General Hospital of Nanjing Military Command were enrolled retrospectively.END was defined as that the National Institutes of Health Stroke Scale (NIHSS) score increased ≥2 or the motor score increased ≥ 1 with in 72 h after admission compared with the baseline score on admission.All the patients were divided into either an END group (26 cases) or a non-END group (55 cases) according to whether the occurrence of END.Univariate factor analysis was used to analyze the differences of the clinical data between the two groups.The grade standard of collateral circulation was assessment with the collateral circulation assessment system of the American Society of Interventional and Therapeutic Neuroradiology/Sociey of Interventional Radiology.Multivariable Logistic regression analysis was used to analyze the risk factors for END after acute middle cerebral artery infarction.Results Compared with the patients in the non-END group,the proportions of age 60 years (65.4％ [17/26] vs.36.4％ [20/55];x2 =5.992,P =0.014),high-sensitivity C-reactive protein level ≥4.0 mg/L (76.9％ [20/26] vs.45.5％ [25/55];x2 =7.080,P =0.008) and diabetes (38.5％ [10/26] vs.16.4％ [9/55],x2 =4.802,P =0.028) in the END group were increased significantly,while the collateral circulation grade was decreased significantly (Z =-3.253,P ＜ 0.01).Multivariable Logistic regression analysis showed that the age ≥60 years (OR,3.412,95 ％ CI 1.075-10.824;P =0.037),high-sensitivity C-reactive protein level ≥ 4.0 mg/L (OR,3.812,95％ CI 1.141-12.740;P =0.030),and collateral circulation grade (OR,2.165,95％ CI 1.241-5.514;P =0.009) were the independent risk factor for END in acute middle cerebral artery infarction.Conclusion The decreased collateral circulation level,age ≥ 60 years and high-sensitivity C-reactive protein≥4.0 mg/L were the independent risk factors for occurring END in acute middle cerebral artery infarction.

Objective To investigate the protective role of human serum albumin in treatment of monocyte-inducible C-type lectin (Mincle)-associated neuroinflammation in subarachnoid hemorrhage (SAH) rats and its underlying mechanisms.Methods Vascular perforation model was used to induce SAH.Ninety-two male SD rats were randomly assigned to sham (n =23),vehicle (n =23),low-dose albumin (0.63 g/kg,n =23) and high-dose albumin (1.25 g/kg,n =23) groups.Saline and albumin were intravenously injected into rats two hours after surgery.Modified Garcia scale was employed to assess neurological functions.Iba-1 and myeloperoxidase (MPO) staining was used to examine the activation of microglial cells and infiltration of neutrophils.Real-time PCR was applied to determine the changes of IL-1β,inducible nitric oxide synthase,CD11b,monocyte chemoattractant protein-1,cytokine-induced neutrophil chemoattractant-1 and CXC motif chemokine ligand-2 mRNA levels.Co-immunoprecipitation was conducted to assess the binding ability of albumin with Mincle.Immunoblotting was carried out to evaluate protein levels of Minlce,Syk and p-Syk.SAH severity measurement was performed before conductions of all the experiments.Results SAH severity scores were 11.4 ± 1.6,12.8 ±2.5 and 11.2 ±3.2 in the vehicle,low-dose albumin and high-dose albumin groups,respectively,without statistically significant difference among groups (F =0.694,P =0.516).Neurological score was 7.5 ± 2.9 in the vehicle group,while the low-dose albumin (14.6 ± 2.2) and high-dose albumin groups (13.6 ± 2.7) exhibited better neurological perfomance (P ＜ 0.01).Immunostaining showed that albumin significantly inhibited the activation of microglia,and reduced the percentage of MPO positive cells from 20.7％ ± 1.9％ in the vehicle group to 12.1％ ±2.1％ in the low-dose albumin group and 9.8％ ±0.9％ in the high-dose albunin group (F =32.216,P =0.001).mRNA levels of pro-inflammatory cytokines and chemotactic factors were also suppressed by albumin (P ＜ 0.05).The results of co-immunoprecipitation displayed that albumin could directly bind Mincle and disrupt the association between Mincle and SAP130.Immunoblotting demonstrated that albumin depressed the protein levels of Mincle,Syk and p-Syk.Conclusion Human serum albumin can inhibit Mincle/Syk-induced neuroinflammation via directly binding Mincle receptor in SAH rats.

Objective:To explore the clinical effect of cranioplasty with titanium mesh outside temporal muscle on skull defect.Methods:The clinical data of 48 patients with skull defect admitted to the General Hospital of Dingyuan County from March 2013 to December 2018 were retrospectively analyzed.All patients received cranioplasty with titanium mesh outside temporal muscle, and the clinical efficacy, prognosis and complications were analyzed.Results:Of the 48 cases, there were 44 cases of clinical primary healing, 2 cases of epileptic seizure, 1 case of epidural hematoma and 1 case of titanium mesh exposure.Conclusion:Skull defect repaired with titanium mesh outside temporal muscle, the skull is satisfied in shape and it has high clinical value.In order to reduce the postoperative complications and improve the surgical efficacy, fully prepared before operation, strict aseptic and standardized operation are must.

White matter lesion is a major subtype of cerebral small vessel disease. Its pathophysiology and mechanism remain unclear. Because the risk factors often coexist in clinical research, it is difficult to judge the relationship between certain risk factors and white matter injury. Moreover, due to the differences in animal and human brain tissue structure, there is currently a lack of reproducible animal models of white matter lesions. Therefore, establishing a practical animal model and further exploring the pathogenesis and risk factors of white matter lesions from the basic research level is crucial for the preclinical study of the treatment of white matter damage. This article reviews the characteristics, optimization measures, and application prospects of the white matter lesion models.

Objective To investigate the difference between histopathological changes of brain white matter in low-density lipoprotein receptor (LDLR) homozygous mutation rats with hypercholesterolemia and wild-type rats.Methods Thirty LDLR-/-rats and 28 wild-type rats were selected.Plasma cholesterol levels were measured by enzyme-linked immunosorbent assay at 15,18 and 26 weeks old respectively.The axonal structure of the corpus callosum area was observed by transmission electron microscopy.The myelin basic protein (MBP) of the corpus callosum area was quantitatively analyzed by Western blotting.In addition,at 26 weeks old,the myelin sheaths were stained by fast blue staining.The expression level of MBP in white matter was further detected by immunofluorescence staining,and the morphological changes of glial cells were observed.Results Compared with the wild-type rats,the plasma cholesterol concentration in LDLR-/-rats increased significantly,and it could be as high as 3.3 times at 26 weeks.The results of electron microscopy showed that the LDLR-/-rats had axonal injury at 15 weeks and aggravated gradually over time.At 26 weeks,Western blot analysis of the LDLR-/-rats showed that the MBP expression level of the corpus callosum area decreased significantly.Fast blue staining showed loosening of nerve fibers,diffuse vacuole formation,and myelinated nerve fiber loss in the corpus callosum area.In addition,it was also found that the number of oligodendrocytes in LDLR-/-rats was significantly reduced,and large numbers of astrocytes and microglia were activated.Conclusions LDLR-/-rats will have spontaneous hypercholesterolemia.Axonal injury,demyelination,decreased oligodendrocytes,as well as the abnormal activation of astrocytes and microglia are present in the early adult brain white matter area.

Objective: To develop a model incorporating radiomic features and clinical factors to accurately predict acute ischemic stroke (AIS) outcomes. Materials and Methods: Data from 522 AIS patients (382 male [73.2%]; mean age ± standard deviation, 58.9 ± 11.5 years) were randomly divided into the training (n = 311) and validation cohorts (n = 211). According to the modified Rankin Scale (mRS) at 6 months after hospital discharge, prognosis was dichotomized into good (mRS ≤ 2) and poor (mRS > 2); 1310 radiomics features were extracted from diffusion-weighted imaging and apparent diffusion coefficient maps. The minimum redundancy maximum relevance algorithm and the least absolute shrinkage and selection operator logistic regression method were implemented to select the features and establish a radiomics model. Univariable and multivariable logistic regression analyses were performed to identify the clinical factors and construct a clinical model. Ultimately, a multivariable logistic regression analysis incorporating independent clinical factors and radiomics score was implemented to establish the final combined prediction model using a backward step-down selection procedure, and a clinical-radiomics nomogram was developed. The models were evaluated using calibration, receiver operating characteristic (ROC), and decision curve analyses. Results: Age, sex, stroke history, diabetes, baseline mRS, baseline National Institutes of Health Stroke Scale score, and radiomics score were independent predictors of AIS outcomes. The area under the ROC curve of the clinical-radiomics model was 0.868 (95% confidence interval, 0.825–0.910) in the training cohort and 0.890 (0.844–0.936) in the validation cohort, which was significantly larger than that of the clinical or radiomics models. The clinical radiomics nomogram was well calibrated (p > 0.05). The decision curve analysis indicated its clinical usefulness. Conclusion The clinical-radiomics model outperformed individual clinical or radiomics models and achieved satisfactory performance in predicting AIS outcomes.