Dystonic Disorders ; surgery ; Epilepsy ; surgery ; Humans ; Neurosurgery ; classification ; methods ; trends

Objective To compare the clinical effect of ultrasound and nerve stimulator guidance for interscalene brachial plexus block. Methods Sixty patients scheduled for upper extremity surgery were randomly allocated into two groups to receive either nerve stimulator guidance (group N,30 cases) or ultrasound guidance (group U, 30 cases) for interscalene brachial plexus block. The time for completing the procedure, the onset time of sensory block and motor block, as well as success rate of the procedure were recorded. The requirement for fentanyl during surgery, pain related with procedure and incidence of other complications were also recorded. Results The success rate of the procedure was 100% in both groups.Longer time was needed for completing procedure in group U [(16±7)min] than that in group N [(11±5)min](P＜0.05). The onset time of sensory block was significantly shorter in group U [(13±9)min] than that in group N [(18±7)min] (P ＜ 0.05 ), while the onset time of motor block was similar between the two groups. Twelve patients in group N and 5 patients in group U complained pain related with procedure, which were significantly different (P＜0.01 ). Conclusion Interscalene brachial plexus block with ultrasound guidance has similar clinical effect and success rate compare with nerve stimulator guidance.

Apoptosis ; Cell Proliferation ; DNA Methylation ; Humans ; Intercellular Signaling Peptides and Proteins ; genetics ; metabolism ; Membrane Proteins ; genetics ; metabolism ; Neoplasm Invasiveness ; Neoplasm Metastasis ; Neoplasms ; metabolism ; pathology ; Neovascularization, Pathologic ; Nerve Tissue Proteins ; genetics ; metabolism ; Promoter Regions, Genetic ; Receptors, Immunologic ; genetics ; metabolism ; Signal Transduction

Animals ; Breast Neoplasms ; metabolism ; Humans ; NF-kappa B ; metabolism ; Neoplasms ; metabolism ; Precursor T-Cell Lymphoblastic Leukemia-Lymphoma ; metabolism ; Proto-Oncogene Proteins c-bcl-2 ; metabolism ; Receptors, Notch ; metabolism ; physiology ; Signal Transduction

In plant genetic engineering, selectable marker is needed to distinguish transformant. As the commercialization of transgenic plants, people are more and more paying close attention to their safety, among which mainly refers to the safety of selectable marker. In order to increase the safety of transgenic plants, biologists began to search for biosafe selectable marker.Current research progress of taking key enzyme in metabolic pathways were overviewed,which include glycometabolism, amino acid metabolism, hormone metabolism ,nucleotide metabolism and protein metabolism et cetera, as selectable marker in transgenic plants.

OBJECTIVETo explore the effect of Danlou Tablet (DT) on arrhythmia model rats induced by transient myocardial ischemia/reperfusion (I/R).

METHODSTotally 45 healthy Wistar rats were randomly divided into 3 groups, the sham-operation group, the model group, and the DT group, 15 in each group. Rats in the sham-operation group and the model group were administered with distilled water by gastrogavage at the daily dose of 0.1 mL/kg. Rats in the DT group was administered with 0.53 g/mL DT suspension by gastrogavage at the daily dose of 0.1 mL/kg. All medication was lasted for 10 successive days. The myocardial I/R experiment was performed at 1 h after the last gastrogavage. ECG was performed before ligation and at I/R. The jugular arterial blood pressure of all rats was measured during the whole course. ST segment changes were observed at each time point of I/R. The ventricular fibrillation, the premature ventricular, the number and the duration of ventricular tachycardia within 30 min reperfusion were also observed. Activities of Na(+)-K+ ATPase and Ca2+ ATPase in the myocardium homogenate were detected as well.

RESULTSThe jugular arterial blood pressure and the heart rate were slightly lower in the DT group than in the model group, but with no statistical difference (P > 0.05). Compared with the sham-operation group, the degree of ST segment was obviously elevated in the model group at 0, 5, and 7 min (P < 0.05). It was significantly lower in the DT group than in the model group (P < 0.01). ST seg ment was more elevated at 5 min than at 0 min in the model group, but the degree of ST segment elevation was still obviously lower in the DT group than in the model group (P < 0.05). There was no statistical difference in the degree of ST segment elevation at 7 min between the two groups (P > 0.05). At 0 min when the decrement of ST segment exceeded one half the ischemia, there was no statistical difference in the degree of myocardial ischemia between the model group and the DT group (P > 0.05). Compared with the model group, the incidence of fatal and nonfatal ventricular fibrillation, the frequency and duration of ventricular tachycardia and premature ventricular beats were obviously lessened, and activities of Na(+)-K+ ATPase and Ca(2+)-ATPase increased (all P < 0.05).

CONCLUSIONSDT could significantly protect arrhythmias induced by transient I/R. Its effect might be related to lowering the degree of myocardial ischemia, and increasing ion transport channel related enzyme activities.

Animals ; Arrhythmias, Cardiac ; drug therapy ; etiology ; Disease Models, Animal ; Drugs, Chinese Herbal ; therapeutic use ; Male ; Myocardial Reperfusion Injury ; complications ; Rats ; Rats, Wistar

This research is for the purpose of comparative analysis of the microbial flora structure in the chilled beef with no packing and cling film, which under the same terms of sale. It was used the V3 area fragment of 16S rDNA to carry on PCR-DGGE, Meanwhile used the 16S rDNA sequence to analysis the microbial flora structure of the two samples, according to the technology of clone .The research discovered that the flora structure displays a biggish difference; there was 6 OTU in the chilled beef with cling film, mainly was that Lactococcus(28%), Lactobacillus (26%), Carnobacterium(18%) and Brochothrix (10%); but there was 18 OTU in the chilled beef with no packing, mainly was that Lactococcus(28%), Brchothrix(18%), Acinetobacter (11%). The result indicates that cling film played a certain inhibitory action regarding the Staphylococcus as well as the cold pole bacteria and such bacterium. And it can provide a certain theory ba-sis for the meat processing in the department of microorganism’s control.

It is used the method of pure culture,Selected 32 strains,which were obvious difference in the shape,color and so on common characteristic,From the chilled beef with no packing and cling film on sale in this research;and it was included 12 strains from the chilled beef sample packed with cling film;20 strains from the chilled beef sample with no packing.Simultaneously selected 4 strains which were predominant in each bacterium from the two samples to conduct the further research,8 strains serial numbers are:S01～S08,S01～S04 from the chilled beef sample with no packing;S05～S08 from the chilled beef sample packed with cling film.Through ARDRA(Amplified ribosomal DNA restriction analysis) as well as 16S rDNA to clarify the bacterium's classified status.The physiological and chemical tests were done to determine the various bacteria respective genus.The experiment indicated:S01 is Pseudomonas putida;S02 is Shewanella cincia stain;S03 and S05 are the same Shewanella putrefaciens;S04 is Stenotrophomonas mal-tophilia;S06 is Psychrobacter;S07 is Staphylococcus sciuri;S08 is Microbacterium-laevaniformans.It was proved that two samples altogether have the same predominant bacterium.It can provide certain theory basis for the chilled meat processing craft as the preliminary investigation in the cultured microorganism situation in two samples.

The rodipicolinate synthase gene was cloned from Nicotiana tabacum L.cv,which encodes the key enzyme in the synthesis of lysine,and then a vitro molecular reform reliefing feedback suppression was made. Some resistant seedlings were acquired using the mutated gene as selectable marker and analog of lysine as selectable reagent,and the detection results were positive by means of PCR and Real-Time PCR,however the phenotype is somewhat abnormal.

Objective To investigate the gender difference in the smile aesthetic features in aged Han Chinese with normal occlusion and its clinical significance.Methods Fifty-six aged Han Chinese (male:28,female:28,aged 60-66 years)with normal occlusion were included in this study.Smiling images of the resting-position and mandibular postural position were obtained in an anteriorposterior view.The CoSmileMAA1.0 software was used to evaluate the indices associated with the smile-aesthetic features,and its clinical significance was analyzed.Results Significant differences were noted in the nasal ala width,upper lip length,lip clearance,angle oris width in resting-position/ smiling position together with the changes of lip clearance,angle oris width,distance of inferior margin of upper lip to cutting edge of the maxillary incisor teeth,distance of superior border of lower lip to cutting edge of the maxillary incisor teeth,smile line ratio and type of smile (all P＜0.05).When the subjects were smiling,the changes of lip clearance was greater in females than in males [(10.7±1.9)mm vs.(11.3±1.6)mm,P＜0.05],the changes of angle oris width was greater in males than in females [(14.1±1.6)mm vs.(13.4±1.3)mm,P＜0.05],and the smile line ratio was less in males than in females [(0.9±0.2) vs.(1.1±0.5),P＜0.05],which indicate that the females had more attractive smile in aged Han Chinese with normal occlusion than males.The type of smile was mainly high smile in elderly females and median smile in elderly males [53.6％ (15 cases) and 60.7％ (17 cases),x2 =6.43,P＜0.05].Conclusions Significant gender difference is noted in the smile-aesthetic features in aged Han Chinese with normal occlusion.Modulation of maxillary incisor teeth length and smile line ratio can contribute to the aesthetic appearance of smiling.