The effects of carbamates and soman on the metabolism of nicotinic acetylcholine receptors (N-AChR) in cultured skeletal muscle cells were studied by 125I-a-bungarotoxin (125I-a-BTX), a specific marker. It was indicated that N~AChR degradation process was inhibited and the incorperation rate of IshAChR and the number of N~AChR in the surface of the cell membrane were increased 4h after prertreatment of high concentrations of carbamates. The number of N-AChR was also increased after pre-treatment of low concentrations of soman, whose effects on N-AChR metabolism were similar to those of high concentrations of carbamates. The incorperation rate of N-AChR was observed by inhibiting the protein synthesis with puromysin, suggesting that soman may increase the number of N-AChR by increasing the incorperation of N-AChR instead of increasing the synthesis of N-AChR.

Objective To investigate the clinical effect of Edaravone on transient ischemic attack and serum superoxide dismutase and malondialdehyde levels in the elderly.Methods Ninety eight cases with transient ischemic attack treated in our hospital were chosen as the objects, which were randomly divided into observation group and control group (n=49 for each).Patients in observation group were treated with Edaravone combined with conventional therapy, and patients in control group were treated with conventional therapy.The clinical effect and levels of SOD and MDA were analyzed and compared between the two groups.Results The effective rate and total efficiency were higher in observation group than in control group (79.6％ vs.55.1％, 95.9％ vs.83.7％, x2 =6.914 and 4.354, P=0.008 and 0.032).The SOD level was higher and the MDA level was lower in observation group than in control group (both P＜0.001) after treatment.Conclusions Edaravone could improve the symptoms of transient ischemic attack in the elderly, and increase the activity of SOD and reduce MDA level, which is helpful to reduce lipid peroxides, alleviate free radical toxicity, and improve the anti-oxidation ability.

Objective To investigate the auditory sensory gating P50 in schizophrenia patients with homicide during three months of follow up. Methods Twenty-five patients with schizophrenia patients with homicide and 27 healthy adults matched with age and education level were recruited in the present study. P50 was recorded in twenty-seven normal controls and twenty-five schizophrenia patients at the baseline. P50 was repeatedly recorded in eleven patients who completed the follow-up at three months following antipsychotics treatment. The psychotic symptoms of patients were assessed with Positive and Negative Syndrome Scale (PANSS) at the same time. Results ①In comparison with normal controls, schizophrenia patients with homicide showed increased S2-P50 amplitude (P<0.01), increased S2/S1 ratio (P<0.01), decreased S1-S2(P<0.05), and 100(1-S2/S1) (P<0.01) at the baseline and after three months treatment. The differences in P50 amplitude, latency, and P50 suppression index between the baseline and after three-month treatment in schizophrenia patients with homicide were not significant (P>0.05). ② Schizophrenia patients with homicide after three-month treatment showed decreased PANSS total scale, positive scale, general psychopathology scale, and six symptoms scales such as lack of response, thought disorder, activation, paranoid, depression, and aggression (P<0.05). ③ No significant correlations were found between the S2/S1 ratio, S2-S1, and 100(1-S2/S1) with disease duration, PANSS scores, and six symptoms scales at either baseline or after three-month treatment (P>0.05). Conclusions Schizophrenia with homicide has sensory gating deficits and P50 suppression index might be a stable trait maker for schizophrenia with homicide.

To investigate the vasodilator effect and the endothelium-dependent mechanism of oroxylin A in thoracic aorta isolated from rats.

Humans ; Proteomics ; methods ; Silicosis ; metabolism ; Specimen Handling ; methods

Objective To study the efficacy of tourniquet to block the distal of radial styloid on success rate of radial artery catheterization.Methods One hundred and forty ASA Ⅰ-Ⅲ patients, aged 22-88 years,undergoing general anesthesia and requiring radial artery catheterization were in-cluded in this study and were randomly allocated into touch positioning group (group A)or tourni-quet-assisted group (group B).Radial artery catheterization was conducted after induction of general anesthesia in two groups.The invasive systolic blood pressure (ISBP ), invasive diastolic blood pressure(IDBP)and HR of patients were recorded in group B at 1 min before ischemia (T1 ),using pressure pulse blocking after 1 min (T2 ),2 min (T3 ),5 min (T4 )and the complete release of tour-niquet after 1 min (T5 ),5 min (T6 )and 10 min (T7 ).The first and total success rate of radial artery puncture,puncture times,puncture duration and complications were recorded.Results The radial ar-tery diameter was not statistically significant in group B between before and after blocking radial artery .ISBP at T2-T4 in group B was significantly higher than that at T1 (P <0.05).The first time puncture success rate and overall success rate in group B was significantly higher than that of group A,The number of puncture in group B was significantly less than that of group A,and puncture time was significantly shorter in group A (P <0.05).Conclusion Tourniquet-assisted radial artery cathe-terization could improve success rate,decrease puncture times and shorten puncture duration.

[ABSTRACT]OBJETIVETo analyze the reliability and safety of our simplified microsurgical techniques in head and neck reconstruction.METHODSA total of 3045 consecutive cases of free flap transferred in the head and neck region from May 1999 to May 2015 were reviewed. Data concerning the operation included the date of surgery, defect description and site, stage and histology of tumor, type of free flap, recipient vessel and complications.RESULTSOf the 3045 cases, 1856 were males, and 1189 were females. The age ranged from 5 to 86 years, with the average of 47.8 years. Among the 3045 cases, 2868 were tumor-related defects reconstructions, and 2653 were one stage reconstructions. The overall success rate of free flap was 98.5%. The vessel thrombosis rate was 2.9%, and the flap salvage rate was 48.9%.CONCLUSIONOur microsurgery technique greatly simplified traditional microsurgical technique. Head and neck reconstruction using this technique is very safe and reliable, and needs further clinical applications.

The internal audit is important for the management system of laboratory .The article stated how to effectively implement internal audit in drug testing laboratories in terms of the planning , checklist, pattern, problem observation , CAPA of non-compliance and application of results in internal audit .

Objective To evaluate the correlation of visual acuity measured using two different types of eye chart in children with amblyopia.Methods 119 cases (213 eyes) amblyopia patients were selected,including 40 cases (80 eyes) of refractive amblyopia,41 cases (58 eyes) of anisometropia amblyopia,and 38 cases (75 eyes) of strabismus amblyopia were selected.Best corrected visual acuity (BCVA) were determined using standard visual chart and visual noise dual chart and the correlation between the two visual acuity result were explored using Spearman's correlation analysis.Results The visual acuity in refractive amblyopia,anisometropia amblyopia and strabismus amblyopia determined by standard visual chart was statistically correlated with that determined by visual noise dual visual acuity chart.Conclusions The visual acuity measured by standard vision chart showed satisfactory linear relationship with that measured by visual acuity chart double among three types of amblyopia,however,the strength of correlation coefficient between different types of amblyopia were different:correlation coefficient in anisometropic amblyopia was the highest,and the coefficient in refractive amblyopia was the lowest.

As a result of various anthropogenic activities,natural saline environment polluted by contaminants and the environment polluted by both contaminants and salts frequently occur.In these saline environments,non-halophilic microorganisms have ineffective bioremediation,even lose the function of bioremediation.Halophilic microorganisms are able to thrive in high salt conditions.It is obvious that the halophilic degraders are more useful for the bioremediation of contaminated saline environments and may be potentially used in a wide of application.The objective of this review is to summarize the research progresses of halophiles in the biodegradation of petroleum hydrocarbons,aromatic hydrocarbon ramifications,and organophosphorous.