Objective To identify the subcellular location of S AR S-CoV N protein in mammalian cells. Methods The gene fraction of SARS-CoV was cloned into the PGEFP-C1 plasmid to construct expression vecto r PGEFP-C1/N. The subcellular location of N in A549 and VeroE6 cells was observ ed under fluorescence microscope with the aid of transient transfection techniqu e. The expression of the fusion protein (GFP-N) was detected by Western blot. Results The PGEFP-C1/N was constructed. N protein was localiz ed in the cytoplasm of transfected cells and detected by Western blot. C onclusion N protein was localized in the cytoplasm of mammalian cells.

Child, Preschool ; Cochlear Implantation ; Cochlear Implants ; Craniocerebral Trauma ; Humans ; Magnets ; Male ; Prosthesis Failure

Objective: To synthesize and characterize Sanguisorbae Radix/nano-silver composites by reduction of silver nitrate solution using Sanguisorbae Radix as reducing agent and dispersant. Methods: Taking the absorbance of UV-visible spectroscopy of Sanguisorbae Radix/nano-silver composites as index to study the influence of different factors, such as extracting time of Sanguisorbae Radix powder, reaction temperature of synthesis, volume of Sanguisorbae Radix extract, and concentration of AgNO3, on the formation of nano-silver composites and to optimize the conditions. TEM, XRD, FT-IR, and DLS could be used to characterize the physicochemical properties of Sanguisorbae Radix/nano-silver composites. Results: The optimum conditions were as follows: the boiling time of Sanguisorbae Radix powder was 15 min, the volume ratio of 0.1 g/mL Sanguisorbae Radix extract and 1 mmol/L AgNO3 was 1:10, the resultant temperature was 25 °C, and the reaction time was 1 h, the Sanguisorbae Radix/nano-silver composites obtained were approximately spherical in shape with the mean size about 21 nm in good uniformity and stability. Conclusion: The preparation of Sanguisorbae Radix/nano-silver composites is stable and feasible.

Based on the data of “National Chinese Medicine Resources Census and Germplasm Sharing Data Special Service-Poverty Alleviation of Chinese Medicine Industry” and “Kangmei Chinese Medicine Network-Service Platform of Chinese Medicine Whole Industry Chain”, the information of traditional Chinese medicinal materials (TCMM) resources in poverty-stricken areas was collated and analyzed, the database of planting area and output value of Chinese medicine in poverty-stricken areas was constructed, and the species in poverty-stricken areas were plotted by ArcGIS software. The spatial distribution map of the situation of herbal medicine planting can discover and summarize the spatial pattern characteristics and development rules of poverty alleviation in Chinese herbal medicine industry. On this basis, by referring to the relevant reports of “China Poverty Reduction Database” and “Office of the Leading Group for Poverty Alleviation and Development of the State Council”, this paper comprehensively analyses the main factors affecting poverty alleviation in the traditional Chinese medicine industry, and puts forward corresponding suggestions, hoping to provide beneficial references for the extensive poverty alleviation work in poor areas.

Objective To investigate the relationship between carotid artery atherosclerosis and risk factor in a young and middle-aged population in China who received health checkup.Methods A total of 762 cases of young and middle-aged adult were recruited between April and October in 2013.These subjects had no hypertension,diabetes,coronary heart disease,cerebrovascular disease,and connective tissue disease,etc.Their Blood pressure,serum glucose (Glu),total cholesterol (TC),triglyceride (TG),and low density lipoprotein cholesterol (LDL-C) were measured and carotid artery ultrasonography was performed.Of the 762 cases,589 were male,173 were female,mean age was (46 ± 9) years.For blood pressure,blood lipids,the t test was performed to detect the difference between arteriosclerosis group and non arteriosclerosis group in different age groups.Logistic regression was performed to reveal the risk factors with carotid arteriosclerosis.Results Of the 762 subjects,205 had carotid artery atherosclerosis; 30.2％ (178/589) of them were men and 15.6％(27/173) of them were women,with a significant difference between two groups,(x2=14.522,P=0.000).In the younger than 40 years old group,the diastolic blood pressure has statistical significance between carotid arteriosclerosis and non carotid arteriosclerosis group (t=-2.789,P＜ 0.05); blood sugar had statistically significant difference between the two groups (t value was-2.256,-2.930,-2.174,respectivly,P＜0.05).Multiple regression analysis revealed that the independent risk factors for carotid artery arteriosclerosis were age,sex,DBP,and Glu.The regression coefficients were 0.993,0.711,0.047,0.334 seperately.The ROC curve of age was analyzed,the area under the ROC curve was 0.731,cut-off was 51 years old.Conclusions Routine carotid artery ultrasound should be performed for older than 50 healthy middle-aged men,to determine whether arteriosclerosis exists,especially for people with abnormal blood glucose or elevated DBP.

Objective To observe the changes of renal function in elderly patients with heart failure but normal ejection fraction,and explore its clinical significance. Methods A total of 145 cases diagnosed as coronary artery disease from Department of Geriatric Cardiology in The First Affili?ated Hospital of China Medical University were enrolled in the study. All of the cases were divided into HFPEF group(65 cases)and non HFPEF group(80 cases). All patients underwent cardiac ultrasound,BNP and renal function examination,and the glomerular filtration rate(GFR)was cal?culated. Results The average age of patients in HFPEF group was significantly higher than non HFPEF group(P<0.001),and the incidence of hypertension,diabetes,coronary heart disease,atrial fibrillation,or concomitant incidence of two or more kinds of these disease in HFPEF group was significantly higher than non HFPEF group(P1=0.046,P2<0.001,P3=0.002,P4=0.021,P5<0.001);the GFR of two groups of patients were lower than normal level,but the GFR of HFPEF group was significantly lower than non HFPEF group(P=0.046);E/Em was significantly higher (P<0.001),Em was significantly lower(P=0.002),left atrial diameter was significantly higher(P<0.001),LVEF was significantly lower(P=0.012),BNP values were significantly higher(P=0.001)in HFPEF group than in the non?HFPEF group;There were significant linear correlation between GFR and E/Em(r=-0.428,P=0.001),GFR and the BNP(r=-0.435,P=0.001),E/Em and BNP(r=0.392,P=0.002)in HFPEF group. Conclusion Elderly patients with heart failure but normal ejection fraction were older,and more of them were complicated with hyperten?sion,diabetes,coronary heart disease,atrial fibrillation,or concurrency of these diseases. Glomerular filtration rate was significantly decreased in el?derly patients with HFPEF,which has a significant correlation with diastolic function parameters.

The graphene prepared by chemical vapor deposition onto copper foils was transferred onto a poly(ethylene terephthalate) (PET) soft substrate by the aid of poly-methyl methacrylate (PMMA).The soft G/AuNPs/GOD composite electrode based on PET substrate was fabricated using a protocol in which the uniform distribution of Au nanoparticles (AuNPs) was firstly obtained by controlling the evaporation of gold sol on a graphene surface, then thioglycolic acid (TGA) was modified on the AuNPs through Au-S bond, and finally glucose oxidase (GOD) was immobilized on the surface of AuNPs through acylation reaction between TGA and the GOD.Glucose was detected in the linear range from 0.05 to 10.55 mmol/L with a linear correlation coefficient (r) of 0.9955.The detection was performed in phosphate buffer solution (pH 7) at 25℃ with a working potential of 0.6 V (vs.SCE electrode), and the detection limit was 1 μmol/L (3σ).The G/AuNPs/GOD flexible electrode based on PET substrate provided a new pathway to detect glucose in special environments using wearable equipment, which enlarged the applied field of glucose detection.

Silver nanoparticles were synthesized from the extract of Fagopyri Dibotryis Rhizoma and the optimization of synthesis was studied. The absorbance of UV-visible spectroscopy was determined under the different influencing factors such as extracting time of Fagopyri Dibotryis Rhizoma powder, reation temperature of synthesis, volume of Fagopyri Dibotryis Rhizoma extract and concentration of AgNO3 to seek the optimization conditions. By means of FT-IR, TEM, DLS and XRD, the silver nanoparticles were characterized. The results showed that when the boiling time of Fagopyri Dibotryis Rhizoma powder was 5 min, resultant temperature was 25 degrees C, the volume ratio of 0.1 g x mL(-1) Fagopyri Dibotryis Rhizoma extract and 1 mmol x L(-1) AgNO3 was 1 to 10, and the reaction time was 3.5 h, the obtained silver nanoparticles had mean size about 27 nm and Zeta potential about -34.3 mV with good uniformity and dispersivity. Therefore, the green synthesis method of silver nanoparticles using extract of traditional Chinese medicine is stable and feasible.
Fagopyrum ; chemistry ; Light ; Metal Nanoparticles ; chemistry ; ultrastructure ; Microscopy, Electron, Transmission ; Particle Size ; Plant Extracts ; chemistry ; Rhizome ; chemistry ; Scattering, Radiation ; Silver ; chemistry ; Silver Nitrate ; chemistry ; Spectroscopy, Fourier Transform Infrared ; Temperature ; X-Ray Diffraction

Objective To investigate the influence of atosiban on the pregnancy outcome in patients with repeated implantation failure(RIF)in blastcyst thawed embryo transfer(bTET) Methods From January 2014 to December 2015,a total of 262 RIF patients undergoing bTET were retrospectively studied. They were divided into study group with a single bolus dose (6.75 mg/0.9 mL,iv) of atosiban before bTET (n = 94),and control groupwithout atosiban(n = 168). Results The clinical pregnancy rate(57.41%),implantation rate(38.41%) and living-birth rate(46.81%) of study group were significantly higher than those of control group (41.12%, 28.32% and 33.93% respectively;P < 0.05). Although the abortion rate of study group was higher than that of control group(14.82% vs 13.04%),both the ectopic pregnancy rate(3.70%) and the multiple pregnancy rate (16.67%) were lower than those of control group(5.79% and 17.39%),and there was no statistical difference (P > 0.05). Conclusion Atosiban treatment before embryo transfer may improve pregnancy outcomes of RIF patients in bTET.

AIM: To analyze the electronic product use time, writing time, playing piano time and outdoor activity time and the distribution of myopia in 586 cases of school age children in our hospital. ·METHODS: A retrospective analysis of 586 cases of children aged 6 to 12 years old in the outpatient department was established. Personalized files were used to record the uncorrected visual acuity, optometry, slit lamp, fundus mirror and strabismus. The cumulative use time of electronic products ( including computer, mobile phone, iPad) , writing time, whether to play the piano and outdoor activities time with the eye situation were recorded. Statistical analysis of the age group of myopia, the cumulative use of electronic age in different age groups, writing time, whether playing piano and outdoor activities and the distribution of myopia occurred. · RESULTS: ( 1 ) With the increasing of age, the distribution of uncorrected eyesight was in children mostly mild myopia, and the proportion of mild myopia was significantly higher than that of moderate and high myopia. ( 2 ) Electronic products use time distribution:the proportion of playing electronic products ( including mobilephone, computers, iPad) accounted for 76. 8%, of which 9 years old, 10 years old the cumulative use of electronic products with a long time was higher than other age groups. ( 3 ) Distribution of writing time: the proportion of write homework ≤1h was significantly lower than the proportion of writing homework > 1h (37. 2% vs 62. 8%), of which 9 and 10 years old children cumulative write time was higher than other age group. ( 4 ) Distribution of playing the piano: the proportion of playing piano time less than 1h was significantly higher than the proportion of playing piano time more than 1h ( 89. 1% vs 10. 9%). ( 5 ) Distribution of outdoor activities: the proportion of outdoor activities ≤1h in children at school age was significantly higher than that of outdoor activities > 1h (91. 8% vs 8. 9%). ·CONCLUSION: With the age exposure to electronic products becoming younger, heavy learning tasks and less outdoor activities, myopia occurred in advance of age. So health examination and eye guidance, reducing the amount of work appropriately, increasing outdoor activities will slow the development of early childhood myopia.