Acupuncture Therapy ; Adult ; Aged ; Bloodletting ; Combined Modality Therapy ; Female ; Humans ; Hypesthesia ; therapy ; Male ; Middle Aged ; Moxibustion

Objective To explore the antibacterial activity and cytocompatibility of chitosan-nano-silver complex thermosensitive hydrogel. Methods There were 4 groups: group A (containing 1 ×10-5 chitosan-nano-silver complex thermosensitive hydrogel), group B (containing 5 ×10-6 chitosan-nano-silver complex thermosensitive hydrogel) , group C ( containing 2 ×10-6 chitosan-nano-silver complex thermosensitive hydrogel) , group D ( chitosan thermosensitive hydrogel ) .The antibacterial activity of the samples against six kinds of gram-negative bacteria, one kind of gram-positive bacterium, three kinds of fungi were measured by bacteriostatic circle.The cytocompatibility of the extraction to NIH-3T3 cells was studied by SRB. Results The antibacterial activity enhanced with the increasing of nano silver concentration in chitosan-nano-silver complex thermosensitive hydrogel, whose antibacterial activity was better than chitosan thermosensitive hydrogel; its extraction has no cytotoxicity, thus showed good cytocompatibility. Conclusion The chitosan-nano-silver complex thermosensitive hydrogel is a potential novel wound dressing.

Objective To explore the relationship between family environment and parental rearing patterns and adolescent schizophrenia , for the prevention of adolescent mental and provide scientific basis of schizophrenia . Methods In adolescent patients with schizophrenia in 101 cases( case group ) ,101 cases of the other without a histo-ry of psychosis patients as control group ,using the family environment scale ,EMBU for two groups of patients quality of life evaluation,non conditional Logistic regression analysis of related factors were analyzed .Results Intimacy, emotion expression,entertainment and father emotional warmth and understanding (F1) was a protective factor(OR=0.643,95%CI=0.235~0.863,P=0.01;OR=0.582,95%CI=0.168~0.906,P=0.01;OR=0.478,95%CI=0.174~0.834,P=0.01),but the contradiction,the father punished severely(F2),father′s refusal and denial(F5) and mother′s over interference(M2) as a risk factor(OR=1.535,95%CI=1.096~2.187,P=0.01;OR=1.516, 95%CI=1.097~2.096,P<0.01;OR=1.375,95%CI=1.034~1.989,P=0.01;OR=1.347,95%CI=1.272~1.915,P<0.01).Conclusion Good family environment and parental rearing pattern can reduce the incidence of schizophrenia .

Objective To propose new policies and strategies that will optimize the transformation of medical research achievements at hospital level.Methods In this paper,we systematically analyzed the characteristics and influencing factors of the transformation of medical research achievements based on the status quo in our hospital.Results In our hospital as an example,major problems in the transformation of medical research achievements identified as low investment,low conversion rate,complex procedures,multi-links existed and more multi disciplinary cooperation needed.Conclusions The hospital can take some measurements to optimize the transformation of medical research achievements,such as more stream lined management of scientific research project,establishing and improve the platform for scientific research transfer,increasing the funding,strengthening cooperation among different disciplinaries,building a professional team to promote the transfer and so on.

Accidents, Occupational ; mortality ; Humans ; Hydrogen Sulfide ; poisoning

OBJECTIVETo study the effect of aqueous extract of Taxus chinensis var. mairei (AETC) combined Erlotnib on the growth of A549 xenograft in nude mice and its mechanism.

METHODSThe xenograft model in nude mice was established by inoculating A549 cells subcutaneously. BALB/c nude mice bearing A549 xenograft were randomly divided into six groups, i.e., the low dose Erlotinib group (A) , the standard dose Erlotnib group (B) , the low dose Erlotinib combined AETC group (C), the standard dose Erlotnib combined AETC group (D), the AETC group (E), the control group (F), 12 in each group. Different medication was performed for 7 successive weeks after 24 h. One mL blood was withdrawn and tumor tissues taken. The tumor inhibition rate was calculated. The combined effect was analyzed by Jin's Formula [Q = Ea + b/(Ea + Eb-Ea x Eb) ]. mRNA and protein expression levels of epidermal growth factor receptor (EGFR), cyclooxygenase-2 (COX-2), and B cell lymphoma-2 (Bcl-2) in xenografts were detected using real-time RT-PCR and ELISA.

RESULTSCompared with Group F, the xenograft weight was obviously lowered in Group B-E (P < 0.05, P < 0.01). The q value was 0.92 in Group C and 0.96 in Group D, which was obtained by simple adding of the two drugs. Compared with Group F, EG- FR mRNA expression in Group D and E, COX-2 mRNA expression in Group A-E; Bcl-2 mRNA expression in Group B-D; COX-2 protein expression in Group B-E; Bcl-2 protein expression in Group C and D were obviously lowered with statistical difference (P < 0.05, P < 0.01).

CONCLUSIONSAETC combined low dose and standard dose Erlotinib had synergistic effect on tumor inhibition. Its mechanism might be associated with down-regulating mRNA and protein expression levels of COX-2 and Bcl-2.

Animals ; Antineoplastic Agents ; pharmacology ; Antineoplastic Combined Chemotherapy Protocols ; pharmacology ; Cell Line, Tumor ; Cyclooxygenase 2 ; metabolism ; Drugs, Chinese Herbal ; pharmacology ; Enzyme Inhibitors ; pharmacology ; Erlotinib Hydrochloride ; pharmacology ; Heterografts ; Lung Neoplasms ; Mice ; Mice, Inbred BALB C ; Mice, Nude ; Receptor, Epidermal Growth Factor ; metabolism ; Taxus ; Transplantation, Heterologous

OBJECTIVETo study the protective effect of puerarin on MPP(+) -induced SH-SY5Y cells by chaperone-mediated autophagy (CMA).

METHODThe Parkinson's disease cell model was established by injuring SH-SY5Y cells with 1 mmol x L(-1) MPP+. The CCK-8 staining was adopted to detect the effect the puerarin of different concentrations on the survival rate of MPP(+)-induced SH-SYSY cells. The autophagosome formation was observed under transmission electron microscope. The AO staining showed the changes in the lysosome activity. RT-PCR was used to detect the changes in Lamp2a and Hsc70 mRNA expressions. The western blotting was adopted to test the expressions of Lamp2a, Hsc70 and alpha-synuclein protein in cells.

RESULTWithin the concentration range of 12. 5-50.0 micromol x L(-1), the pretreatment with puerain for 30 minutes could protect the injury of MPP+ in SH-SY5Y cells, and showed a certain dose-effect relationship. The AO staining and electron microscope showed the effect of puerain within the concentration range of 12.5-50.0 micromol x L(-1) on 1 mmol x L(-1) MPP(+)-induced SH-SY5Y cells; autophagosomes emerged in cells, and increased along with the rise in the puerarin dose. The results of the flow cytometry revealed that 50.0 micromol x L(-1) of puerarin could protect against the increase of the ROS level in 1 mmol x L(-1) MPP(+) -induced SH-SY5Y cells and prevent the oxidative injury. The results of RT-PCR and western blotting indicated that puerain within the concentration range of 12.5-50.0 micromol x L(-1) alleviated the MPP(+)-induced SH-SY5Y cell injury, and inhibited the accumulation of alpha-synuclein proteins in MPP(+) -induced SH-SY5Y cells by up-regulating Hsc70, Lamp2a mRNA and protein level.

CONCLUSIONPuerarin could protect against the MPP(+) -induced cell injury, whose protective mechanism may be related to the chaperone-mediated autophagy pathway of interventional molecules.

Autophagy ; drug effects ; genetics ; HSC70 Heat-Shock Proteins ; genetics ; Humans ; Isoflavones ; pharmacology ; Lysosomal-Associated Membrane Protein 2 ; genetics ; Molecular Chaperones ; genetics ; Parkinson Disease ; drug therapy ; genetics ; Phagosomes ; drug effects ; genetics ; Piperidines ; pharmacology ; Pyrazoles ; pharmacology ; Tumor Cells, Cultured ; Up-Regulation ; drug effects ; genetics

Objective To evaluate the role of signal transducer and activator of transcription 3 (STAT3) signaling pathway in the reduction of myocardial ischemia-reperfusion (I/R) injury by diazoxide postconditioning in rats.Methods Sixty adult male Sprague-Dawley rats,aged 3 months,weighing 240-260 g,were randomly divided into 5 groups (n =12 each):sham operation group (S group),I/R group,vehicle group (V group),diazoxide postconditioning group (D group),and STAT3 signaling pathway inhibitor Stattic group (St group).Myocardial I/R was produced by 30 min occlusion of left anterior descending branch of coronary artery followed by 120 min reperfusion.In V and D groups,0.4％ dimethyl sulfoxide and 7 mg/kg diazoxide (in 1 ml of 0.4％ dimethyl sulfoxide) were injected through the femoral vein at the onset of reperfnsion,respetively.In St group,Stattic was injected through the femoral vein 10 min before reperfusion,and the other procedures were the same as those in D group.The infarct size (IS) and myocardial apoptosis were detected by TTC staining and TUNEL,respectively.Apoptotic index (AI) was calculated.STAT3 mRNA expression in myocardial tissues was detected using RT-PCR.Western blot was used to detect the phosphorylation of STAT3.Results Compared with S group,the IS and AI were significantly increased and the expression of STAT3 mRNA and phosphorylation of STAT3 were decreased in I/R group (P ＜ 0.05).Compared with I/R group,the IS and AI were significantly decreased and the expression of STAT3 mRNA and phosphorylation of STAT3 were increased in D group (P ＜ 0.05).There was no significant difference in IS,AI,expression of STAT3 mRNA and phosphorylation of STAT3 between V group and St group (P ＞0.05).Compared with group D,the IS and AI were significantly increased and the expression of STAT3 mRNA and phosphorylation of STAT3 were decreased in St group (P ＜ 0.05).Conclusion STAT3 signaling pathway is involved in the reduction of myocardial I/R injury by diazoxide postconditioning in rats.

ObjectiveTo evaluate the efficacy of preoperative oral pregabalin for attenuating postoperative pain after laparoscopic cholecystectomy.MethodsIn this prospective,randomized controlled double-blind study,sixty ASA Ⅰ or Ⅱ patients aged 19-72 yr weighing 46-86 kg undergoing laparoscopic cholecystectomy were randomly divided into 2 groups ( n =30 each):control group (group C) received placebo,and pregabalin group (group P) received oral pregabalin 150 mg 1 h before surgery.Anesthesia was induced with propofol,fentanyl and rocuronium and maintained with sevoflurane inhalation and intermittent iv boluses of fentanyl and rocuronium.The patients were intubated and mechanically ventilated.BIS value was maintained at 40-50 during operation.Static and dynamic VAS score,Ramsay score and consumption of morphine were recorded at 6,12,and 24 h after surgery.Side-effects including nausea,vomiting,headache and dizziness were also recorded.ResultsStatic and dynamic VAS scores and morphine consumption were significantly lower during the first 24 h after surgery while Ramsay scores were higher at 6 h after operation in group P than in group C.There was no significant difference in the incidence of side-effects between the 2 groups.No over-sedation occurred in group P.ConclusionPreoperative oral pregabalin 150 mg is safe and effective in reducing postoperative pain after laparoscopic cholecystectomy.

Objective To explore the correlation between extratemporal hypometabolism on preoperative 18F-FDG PET imaging and the outcome after temporal lobectomy in temporal lobe epilepsy (TLE)patients.Methods A total of 96 patients with intractable TLE who underwent temporal lobectomy were recruited.The outcome was evaluated according to International League Against Epilepsy (ILAE) 2001 outcome classification (OC) criteria:OC 1-3 was considered as good outcome and OC4-6 as poor outcome.The follow-up period was more than 2 years.The 18F-FDG PET brain images were retrospectively analyzed.The preoperative extratemporal cortical hypometabolism and extratemporal subcortical hypometabolism occurred in basal ganglia and thalamus were taken as independent exposure factors of poor outcome and the odds ratios (OR) were calculated respectively.Results Thirteen of 96 cases had poor outcome.Extratemporal cortical hypometabolism was found in 12 of 83(14.5％) cases with good outcome and in 11 of 13 cases with poor outcome.Extratemporal subcortical hypometabolism was found in 25 of 83 (30.1％) cases with good outcome and in 10 of 13 cases with poor outcome.The occurrence of extratemporal hypometabolism was significantly higher in poor outcome group than that in good surgical outcome group (cortical:x2 =26.63 ;subcortical:x2 =8.70; both P＜0.05).The OR of extratemporal cortical hypometabolism was 32.54,with 95％ CI of 6.40-165.44,and that of extratemporal subcortical hypometabolism was 7.73,with 95％ CI of 1.96-30.52.Conclusion Extratemporal cortical hypometabolism and subcortical hypometabolism in TLE patients are associated with poor outcome of temporal lobectomy in TLE patients.