Objective To investigate the effect of intravenous thrombolytic therapy with urokinase on the neurological function and the concentration of serum matrix metalloproteinase 9 (MMP-9) in the patients with acute cerebral infarction.Methods The patients with acute cerebral infarction were divided into the experimental and control groups.The experimental group included 27 patients who were complied with thrombolytic criterion within 4.5 hours after stroke and were firstly treated by intravenous thrombolytic therapy with urokinase by 100 million units after 24 h and 300 mg aspirin by oral.The control group included 27 cases that were directly administrated by 300 mg aspirin 4.5 hours later after stroke.After 24 h,the two groups were administrated with other same conventional treatments such as neurotrophy,improvement of microcirculation,and control of blood-fat.The neurological function and dynamic concentration of serum MMP-9 were observed before treatment and after treatment.Results After treatment,the neurological deficit evaluation score in both groups was gradually reduced with the treatment time,and the neurological deficit evaluation score in the experimental group was significantly lower than that in the control group at the 1 st,3rd,and 14th day,respectively[(10.97 ± 1.53) Score vs (15.67 ±1.78)Score,t =8.35,P =0.03;(8.15 ± 1.40) Score vs(12.72 ± 3.31) Score,t =6.62,P =0.03; (5.87 ± 1.03) Score vs (11.92 ±2.05) Score,t =13.70,P =0.01].After treatment,the concentration of serum MMP-9 in both groups was reduced with the treatment time,and serum MMP-9 in the experimental group was significantly lower than that in the control group at the 1st,3rd,and 14th day,respectively[(282.84 ±37.51) ng/ml vs (316.90±36.75)ng/ml,t =3.37,P =0.00;(309.11±37.71)ng/mlvs (348.39 ±15.26) ng/ml,t =5.02,P=0.04;(264.68±31.91)ng/ml vs (302.81 ±36.30)ng/ml,t =4.10,P =0.03].Conclusions Intravenous thrombolytic therapy with urokinase can effectively reduce the neurological deficit and the produce of MMP-9 in patients with acute cerebral infarction.

Continuous Positive Airway Pressure ; adverse effects ; methods ; Humans ; Infant ; Infant, Newborn ; Infant, Premature ; Infant, Premature, Diseases ; therapy ; Intubation, Intratracheal ; Respiratory Distress Syndrome, Newborn ; therapy ; Risk Factors ; Time Factors

Adult ; Diagnosis, Differential ; Follow-Up Studies ; Humans ; Infant ; Keratins ; metabolism ; Male ; Mandibular Neoplasms ; metabolism ; pathology ; surgery ; Melanoma ; metabolism ; pathology ; Neuroblastoma ; metabolism ; pathology ; Neuroectodermal Tumor, Melanotic ; metabolism ; pathology ; surgery ; Rhabdomyosarcoma, Embryonal ; metabolism ; pathology ; Synaptophysin ; metabolism

Animals ; Apoptosis ; Hypoxia-Inducible Factor 1, alpha Subunit ; Hypoxia-Ischemia, Brain ; genetics ; pathology ; Neurons ; cytology ; metabolism ; RNA, Messenger ; analysis ; Rats ; Rats, Sprague-Dawley ; Transcription Factors ; genetics

Objective To investigate the serum level of visfatin, C-reactive protein (CRP) and monocyte chemoattractant protein-1 (MCP-1) in patients with polycystic ovarian syndrome (PCOS), and provide the basis for understanding the pathogenesis of PCOS. Meth-ods 94 patients with PCOS and 100 healthy subjects were divided into 4 subgroups according to their body mass index(BMI), including obese PCOS subgroup(n = 52), non - obese PCOS subgroup (n = 42), obese healthy subject subgroup (n = 43) and non - obese healthy subject (n = 57). Serum visfatin, CRP, MCP-1, sex hormone levels and metabolic parameters were measured by enzyme-linked immu-nosorbent assay (ELISA), automatic chemistry analyzer or chemiluminescent immunoassay. Results Serum levels of testosterone (T), lu-teiizing hormone (LH) and prolactin (PRL) in the PCOS group were significantly higher than those in healthy subjects group(P <0.05～0.01), and follicle-stimulating hormone (FSH) levels were significantly decreased in PCOS group(P<0.01). Serum levels of Visfatin, CRP, MCP-1,fasting insulin(Fins) and insulin resistance homa model (HOMA-IR) in the obese or non - obese PCOS subgroup were signif-icantly increased than that in the obese or non - obese healthy subjects subgroup respectively (P<0.01). Pearson correlation analysis showed that the visfatin, CRP and MCP-1 levels were positively related to BMI, FINS and HOMA-IR(r=0.323～0.675, P<0.01). Par-tial correlation showed that serum visfatin levels were correlated with HOMA-IR(r=0.491, P<0.01), and serum MCP-1 levels were cor-related with LH (r=0.267, P<0.05) in the PCOS group. Conclusion The patients with PCOS had higher visfatin, CRP and MCP-1 lev-els, and visfatin levels were positively correlated with insulin resistance. Obesity were involved in the chronic inflammation course in patients with PCOS.

ObjectiveTo investigate the applicability and superiority of modified Seldinger technique (MST).MethodsTotally 108 patients receiving peripherally inserted central catheter (PICC) through vascular ultrasound combined with MST technology were enrolled as MST group and another 108 patients receiving PICC using traditional direct vision method as control group.The first puncture success rate,PICC succesa rate,catheterization time required,and early complication rate were compared between these two groups.ResultsThe first puncture success rate was 88.89％ in MST group and 72.22％ in control group (P=0.002) ; the catheterization success rate was 82.41％ in MST group and 57.41％ in control group ( P =0.000).In the MST group,there were two cases where the catheter within neck was ectopic ( P =0.003 ),two cases experienced bleeding at the puncture sites (P =0.017),three cases had phlebitis (P =0.001 ),and one case suffered from catheter blockage (P=0.010).In the eontrol group,the corresponding numbers were 13,10,18,and 9.However,the time required for PICC showed no significant difference between these two groups (P=0.685).In the MST group,15 cases were catheterized in less than 15 minutes,72 cases between 15 and 25 minutes,and 21 cases for more than 25 minutes.In the control group,12 cases were catheterized in less than 15 minutes,70 cases between 15 and 25 minutes,and 26 cases for more than 25 minutes.ConclusionPICC through MST can be more effective in positioning the targeting blood vessels,increasing the success rate of catheter insertion,reducing various tissue damages,and lowering potential complications.

Background:Cytapheresis has been used gradually in the treatment of ulcerative colitis( UC),however,its efficacy is still controversial. Aims:To systematically evaluate the efficacy and safety of cytapheresis on UC. Methods:PubMed, Embase,Web of Science,Cochrane Library,CNKI,Wanfang and VIP database were retrieved to collect the randomized controlled trials( RCTs)using cytapheresis for UC. Article selection,data extraction and quality evaluation were conducted independently by two reviewers. Meta-analysis was conducted by using RevMan 5. 3 software. Results:A total of 20 RCTs involving 1 354 UC patients were included. The results of the meta-analysis showed that cytapheresis was superior to conventional therapy or sham procedure in inducing clinical response(RR=1. 36,95% CI:1. 20-1. 55,P﹤0. 000 01), clinical remission(RR=1. 38,95% CI:1. 15-1. 66,P=0. 000 5)and maintenance of remission(RR=2. 92,95% CI:1. 40-6. 08,P=0. 004 ),and no differences in adverse events were found( RR =0. 37,95% CI:0. 11-1. 24,P =0. 110). Conclusions:Cytapheresis has porfound effect on induction of clinical response, clinical remission and maintenance of remission,and is safe as well. However,the conclusion should be verified by more large-scale and multi-center RCTs.

Cancer is considered as one of the major diseases endangering human health in the world, it is urgent to find a safer and more efficient treatment for cancer therapy. Gene therapy with ribonucleic acid (RNA) drugs could regulate the expression of tumor related genes, and exhibit good anti-tumor therapeutic potential in preclinical and clinical trials. Based on the differences between tumor tissues and normal tissues in microenvironment signal characteristics such as pH, specific enzyme concentration or redox gradient, various microenvironment responsive nanocarriers had been studied and developed to deliver RNA drugs to tumor tissues and cells, improving the anti-tumor efficacy of RNA drugs and reducing toxic and side effects. This paper reviews the pathophysiological characteristics of tumor microenvironment and various strategies of tumor microenvironment responsive nanocarriers, in order to provide reference for the design of safe and efficient RNA drug delivery system for cancer therapy.

Objective The autoantibodies against angiotensin Ⅱ type 1 receptor(AT_1 RAb)have been dis- covered in the patients with malignant hypertensive and preeclampsia,this autoantiboies(AT_1-AA)have an ago- nist-like activity effect similar to angiotensin Ⅱ(Ang Ⅱ).This study aimed at investigation the effect of Ang Ⅱ agonist-like activity by AT_1-AA on VSMCs proliferation was obtained from essential hypertensive patients. Methods VSMCs were cultured from aorta of WKY rats.The hypertensive patients" serum was purified by am- monium sulfate precipitation and affinity chromatography.The effect on VSMC proliferation this autoantilody was determined by BrdU incorporation.Total protein and the expression of phosphorylation JAK-STAT were assessed by Western blotting.Results AT_1RAb caused a significant increase in BrdU incorporation similar to Ang Ⅱ during 0-24 h reaching peak value at 12 h.The A value of in 450 nm was higher in AT_1RAb group (0.236?0.012)than AG490+AT_1RAb group(0.176?0.009),Losartan+AT_1RAb groups(0.119?0.006) and Serum Free group(0.127?0.006)(P