Objective To investigate the prognostic factors of EGC patients,especially the relationship between prognosis and tumor size.Methods Clinical data of 119 EGC cases from 1998 to 2002 were analyzed retrospectively.Results The overall 5-year survival rate was 90.9%.and the survival rate of patients with tumor D＜2 cm.2 cm≤D＜4 cm and D≥4 cm respectively was 100%,92.0%and 80.8%(P=0.024).In this group,tumor stage,lymph node metastasis and tumor invasion depth did not affect the survival statistically.There was no correlation between tumor size and other prognostic factors.Conclusion Tumor size is an independent prognostic factor of patients with EGC,which may have some relevance to the surgical approach of EGC.

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 investigate the neuroimaging relationship between tau protein deposition and brain atrophy, and assess their relationships with cognitive decline in Alzheimer′s disease (AD) patients.Methods:From April 2017 to October 2019, 26 AD patients (12 males, 14 females, age (70.7±12.2) years) and 19 cognitively normal controls (CN; 9 males, 10 females, age (65.6±8.1) years) in Chinese PLA General Hospital were retrospectively enrolled. All subjects received (S)-6-[(3- 18F-fluoro-2-hydroxy)propoxy]-2-(4-methylaminophenyl)quinoline ( 18F-THK5317) PET/MR and the standardized uptake value ratio (SUVR) and gray matter volume (GMV) were measured. General linear model (GLM) was used to evaluate the differences of SUVR and GMV between two groups. Pearson correlation analysis was used to assess the relationships between SUVR and GMV, and relationships of SUVR and GMV with Mini-Mental State Examination (MMSE) scores in AD patients. Results:Compared with CN, the AD patients showed significantly increased 18F-THK5317 retention in lateral temporal, frontal, posterior cingulated/precuneus and occipital cortex with significant differences of SUVR between two groups (2.18±0.54 vs 1.78±0.09, 2.13±0.50 vs 1.82±0.06, 2.03±0.45 vs 1.69±0.08, 2.18±0.57 vs 1.76±0.10, t values: 2.58-6.57, all P<0.001). The AD patients also showed decreased GMV in medial temporal, posterior cingulated/precuneus and orbitofrontal cortex ( t values: 3.67-8.85, all P<0.001). In AD patients, SUVR was negatively associated with GMV in bilateral lateral temporal cortex, pre-frontal cortex and orbital frontal cortex ( r values: from -0.52 to -0.43, all P<0.05). Both SUVR ( r=-0.599, P=0.001) and GMV ( r=0.443, P=0.023) were significantly correlated with MMSE scores in AD patients. Conclusion:AD patients have neocortical 18F-THK5317 abnormal uptake and GMV reduction, which are significantly correlated with cognitive decline.

OBJECTIVETo study the effect of Huoxiang Zhengqi soft capsule on protecting intestinal barrier.

METHODLower limb ischemic reperfusion model was induced in Wistar rats. The Chinese medicine groups were administered orally with Huoxiang Zhengqi soft capsule before inoculation respectively. The small intestinal histopathology and ultrastructural of rats were observed with optical microscope and electronic microscope respectively. Mucus was observed under AB-PAS staining, mast cells were studied under toluidine blue staining, and serum NO was determined.

RESULTAfter Lower limb ischemic reperfusion, the intestinal barrier function was severely damaged. Huoxiang Zhengqi soft capsule could significantly reduce the levels of the serum NO (P < 0.01).

CONCLUSIONHuoxiang Zhengqi soft capsule has apparent protective effect on the intestinal barrier function in lower limb ischemic reperfusion rats.

Animals ; Capsules ; Drug Combinations ; Drugs, Chinese Herbal ; administration & dosage ; isolation & purification ; pharmacology ; Female ; Hindlimb ; blood supply ; Ileum ; pathology ; Intestinal Mucosa ; pathology ; ultrastructure ; Ischemia ; complications ; Male ; Mast Cells ; drug effects ; Mucus ; drug effects ; Plants, Medicinal ; chemistry ; Protective Agents ; pharmacology ; Rats ; Rats, Wistar ; Reperfusion Injury ; pathology

Objective To summarize our preliminary experience of selective fetieide with bipolar coagulation in complicated monochorionie twins(MCT),and discuss the clinical application of feticide in discordant MCT.Methods Three MCT with one twin anomaly.in which 2 had severe twin-twin transfusion syndrome(TTTS),stage Ⅳ ,and 1 had acardiac twin,were identified in the second trimester of pregnancy.To terminate the abnormal twin and isolate the co-twin's circulation completely.selective feticide was performed by umbilical cord occlusion with bipolar coagulation under guidance of ultrasound and fetoscopy.After each invasive procedure,serial monitoring was performed,including procedural complications,Doppler of fetal middle cerebral artery and umbilical artery.Pregnancies were followed up every 2 weeks for fetal growth until delivery.After birth the placentas and the terminated fetuses were examined.Result Cord occlusion was successfully accomplished in all 3 targeted fetuses,at 21,22 and 24 weeks of gestation respectively.One case with TTTS was complicated with rupture of the membrane in the terminated fetus at the 7th day after the procedure.and a healthy baby was born at 32 weeks.The other case with TTTS delivered a boy by cesarean section at 38 weeks.The third case with TRAP is at 35 weeks of gestations and under regular follow-up.Monochorionicity was confirmed by placental examination after delivery.and the effects of bipolar coagulation were observed at the,cord of terminated fetuses.Conclusions Umbilical cord occlusion witll bipolar coagulation is an effective procedure for selective feticide in MCT with one twin anomaly.The outcome of normal fetus can be favorable.

Objective To investigate the empathic abilities and the association between empathic abilities and executive function in schizophrenic patients. Methods Empathy with the Interpersonal Reactivity Index-C (IRI-C) and executive function with Wisconsin Card Sorting Test (WCST) , Stroop Color-Word Task (Stroop), Spatial n-back Task (n-back) were applied to 74 schizophrenic patients and 69 healthy controls. Results Compared with healthy controls, schizophrenic patients showed significantly lower total scores ((46. 8 ± 10. 0) vs (51.5 ±9.7), P<0.01),and subscores in Perspective Taking ((9.5 ±4.2) vs (12.2 ±3.9) , P<0. 01), Fantasy ((12.5 ±4.2) vs (15.5 ±3.8), P<0.01) and Empathic Concern((15. 9 ±4.2) vs (17. 3 ±3.4), P< 0.05) ,but higher subscore((8.8 ±5. 1) vs (6.5 ±3.7), P<0.01) in personal distress of IRI-C. A significant difference(P<0.01) were fund on the scores of WCST, Stroop task and n-back task between schizophrenic patients and healthy controls. Pearson correlation analysis showed that the total scores of IRI-C was negatively correlated with the response administered (Ra), the number of responses errors (Re) and non-perseverative errors (nRpe) of WCST (r= -0.293, r= -0.253, r= -0.272, P<0.05) respectively, that empathic concern sub-score of IRI-C was negatively correlated with Ra, Re, perseverative responses (Rp) and perseverative errors (Rpe) of WCST (r= -0.326, r= -0.300, r= -0.294, r= -0.287, P<0.01 -0.05) respectively , but positively correlated with Rfp. of WCST (r=0.279, P<0.05), and that the fantasy subscore of IRI-C was negatively correlated with the reaction time of B part(r= -0.299, P<0.01) and C part (r= -0.322, P<0.01) of the Stroop task. Conclusion Schizophrenics have a general impairment of empathy and executive function,and affective empathy is related to the executive function, suggesting that the impairment of executive function maybe the one of pathological mechanism for the empathic deficit of patients with schizophrenia.

Objective To analyze the correlation of hypersensitive C-reactive protein(hs-CRP),homocysteine(Hcy) and D-dimer(D-D) with pathological change degree of coronary heart disease(CHD),and to investigate the diagnostic specificity and sensitivity of joint detection in CHD.Methods A total of 100 cases of CHD patients(experimental group) and 100 healthy subjects(control group) were enrolled,.Patients of the experimental group were divided into four groups on the basis of complications,including simple CHD group(32 cases),amalgamating hypertension group(46 cases),amalgamating diabetes group(9 cases),amalgamating hypertension diabetes group(13cases).The levels of hs-CRP,Hcy and D-D in the five groups were detected and analyzed.Results The levels of hs-CRP,Hcy and D-D in the experimental group were all higher than the control group(P<0.05).Logistic regression confirmed that three indexes were the independent risk factors for CHD.Each indicator has a certain clinical significance to the diagnosis and treatment of CHD but the value of Hcy could be better.Joint detection of hs-CRP and Hcy could be an ideal combination of detection,and the three joint detection might not be suitable for early diagnosis and treatment of CHD.The levels of hs-CRP and D-D in simple CHD group,amalgamating hypertension group,amalgamating hypertension diabetes group were all higher than amalgamating diabetes group(P<0.05).Conclusion hs-CRP,Hcy and D-D could be the independent risk factors of CHD,and joint detection might be with important clinical value for diagnosis of CHD.

Objective To analyze the clinical features,methods of treatment and prognosis of primary neurogenic tumors of mediastinum in patients taking surgical intervention.Methods A database was maintained retrospectively of all patients undergoing surgery for tumor and pathologically diagnosed with primary neurogenic tumors of mediastinum,managed in the Department of Thoracic Surgery,Zhongshan Hospital,Fudan University,Shanghai between Jan.,2008 and Dec.,2014.This work analyzed retrospectively the information about clinical and imaging features,surgical techniques and outcome extracted from medical records.Results Among the 131 cases,78 cases (59.5％) were males,53 cases (40.5％) were females;72 cases were diagnosed incidentally (55.0％),while the other 59 cases (45.0 ％) suffered from different symptoms.The posterior mediastinum was the most principal location with 61 cases in the left and 69 cases in the right,and 1 case remained in the anterior mediastinum.Total 98 cases (74.8％) underwent surgeries via video-assisted thoracic surgery (VATS),5 cases (3.8％) took VATS surgery with small incision,and 28 cases (21.4％) experienced open thoracotomy,with no mortality during perioperative period.Gross total resection was obtained in 130 patients (99.2％).The remaining patient underwent a palliative resection for malignant schwannomas.Of the patients,98 cases had benign schwannomas (74.8％),24 cases had gangliocytomas (18.3％),2 cases had malignant schwannomas (1.5％),2 cases had neurofibromas (1.5％),2 cases had paragangliomas (1.5％),2 cases hadprimitive neurotodermal tumor (PNET) (1.5％) and 1 case had neuroblastomas (0.8％).All patients were followed up from 12 to 95 months with an average of 53 months.A patient with PNET died of tumor metastasis,a patient with malignant schwannomas died after palliative ectomy,and 2 cases died of other reasons.The rest survived until Jan.,2016 with tumor free.Conclusions Nearly no specific clinical symptoms occur in neurogenic tumors of mediastinum.Most of neurogenic tumors of mediastinum are benign with optimistic prognosis after surgical treatment.While malignant neurogenic tumorsusually come with poor prognosis,which places special emphasis on early diagnose together with surgical treatment.

Objective To investigate the roles of microRNA-382 (miR-382) in the pathogenesis of renal tubulointerstitial fibrosis (TIF).Methods Human kidney epithelial cells (HK2)transfected with miR-382 inhibitor (antagomiR-382) were used to examine the effect of miR-382 abundance on cell polarity,as well as to test the complementary relationship between miR-382 and its predicted target gene heat shock protein 60 (HSPD1),which was further verified by 3'-untranslated region luciferase assay and site-directed mutagenesis.The role of miR-382 played in the development of renal interstitial fibrosis and redox regulation was examined in a mouse unilateral ureteral obstruction (UUO) model.Locked nucleic acid (LAN)-modified anti-miR-382 was intravenous delivered via tail vein 30 min prior to UUO,and repeated the dosage 24 h after the surgery.For clinical verification,renal biopsy specimens from 12 IgA nephropathy (IgAN) patients were collected,6 patients with moderate to severe TIF and 6 patients without TIF.The relative abundance of miR-382 and HSPD1 protein was analyzed by using in situ hybridization and immunohistochemistry.Results HSPD1 was confirmed to be a new,direct target gene of miR-382 by in vitro 3'-untranslated region luciferase assay and sitedirected mutagenesis.The development of epithelial transition in HK2 cells was accompanied with upregulation of miR-382 [(6.54±0.96) vs (1.12±0.26),P ＜ 0.05].Blocking the expression of miR-382 could reversed the progression of epithelial transition partially.In UUO mice the abundance of miR-382 was up-regulated [(6.89 ± 2.47) vs (1.00±0.42),P ＜ 0.01] while HSPD1 and Trx were downregulated compared with the sham group.Down-regulation of miR-382 was associated with significant decrease in TIF,but increase in HSPD1 and thioredoxin protein compared with UUO group [HSPD1:(0.34±0.10) vs (0.14±0.05);Trx:(0.79±0.18) vs (0.36±0.16);all P ＜ 0.05].The expression of miR-382 was up-regulated and HSPD1 was significantly down-regulated in IgAN patients with TIF.Conclusions miR-382 play an important role in renal tubulointerstitial fibrosis in human and mice.HSPD1 is one of the target genes of miR-382.The down-regulation of HSPD1 and the decrease ability of anti-oxidative stress may be the important mechanism of miR-382 involved in renal tubulointerstitial fibrosis.

BACKGROUND: Recombinant adeno-associated virus 2(rAAV-2) has attracted considerable attention due to its nonpathogenic nature in contrast to other viral vectors such as adenoviral and retroviral vectors in gene therapy attempts.OBJECTIVE: To explore rAAV-2 transduction to bone marrow mesenchymalstem cell(BMSC) in vitro and evaluate the possibility of using rAAV-2 as a vector for gene therapy of acute myelogenous leukemia(AML).DESIGN: An open experiment with cells as the observational subjects.SETTING: Department of Hematology, Nanfang Hospital, Southern Medical University.MATERIALS: The experiment was conducted in the Department of Hematology, Nanfang Hospital, Southern Medical University from February to July 2004. We used passages 3 to 5 BMSCs derived from six de novo AML patients and four healthy volunteers in this study.METHODS: BMSC was isolated from 6 to 10 mL of bone marrow aspirates obtained from the iliac crests of the patients who had been diagnosed as having de novo AML and from those of healthy volunteers. The acquired BMSC was infected by rAAV-2 which contained enhanced green fluorescent protein (rAAV-2-eGFP) at different multiplicity of infection(MOI) (MOI = 1 × 102,1 × 103, 1 × 104, 1 × 105, 1 × 106, 1 × 107) . Then we observed through phase contrast fluorescent microscope and flow cytometer to evaluate green fluorescent protein(GFP) expression 10 to 14 days after transduction. GFP expression was observed as the rAAV-2-eGFP transduced BMSC cultured in vitro. We also observed the in vitro gene expression profile of GFP in rAAV-2-eGFP transduced BMSC which was selected by neomycin ( G418). First, we confirmed GFP expression in BMSC through phase contrast fluorescent microscope, then on flow cytometer to detect the percentage of GFP expression.MAIN OUTCOME MEASURES: The efficiency of rAAV-2-eGFP transduction to BMSC. GFP expression was observed through phase contrast fluorescent microscope and flow cytometer at different time points after transduction.rAAV-2-eGFP to BMSC derived from normal volunteers and AML patients had no significant differences. GFP began to express 10 to 14 days after transduction, and the transduction efficiency ranged from 0. 3% to 1.4%. By changing infection condition, we could not make a higher transduction efficiency( P ＞ 0.05) . One round infection of BMSC by rAAV-2-eGFP at a MOI of 1 × 105 was ( 1. 030 ± 0. 034) %, 3 rounds of infection of BMSC by rAAV-2-eGFP at a MOI of 1 × 105 was (1. 140 ±0. 036)%, and coinfected by LipofectAMINE was (1. 380 ± 0. 054)%. However, 293 cell line which was the package cell of rAAV-2 could be efficiently transduced by AML patients transduced by rAAV-2-eGFP at MOI = 1 × 105: The percentage of GFP expression cell gradually decreased from 1.14% at day 12 after transduction to 0. 6% as cell passaged from 2 to 3, and maintained at a level of 0. 5% to 0. 6% later on till 61 days after transduction. After selected by neomycin(G418) 1 month later, rAAV-2-eGFP transduced BMSCs could maintain a long-term GFP expression at a level of 6.0% in vitro without significant decay within 100 days of observation period after transduction.CONCLUSION: The advantages of rAAV-2 mediated gene transduction lie in safety, no immune response to the host, and long-term expression maintained by the target gene. rAAV-2 and BMSC can be used for in vitro gene therapy, and as a systemic gene delivery system, it might be an alternative for systemic gene therapy in the future.