Electroencephalogram (EEG) is the primary tool in investigation of the brain science. It is necessary to carry out a deepgoing study into the characteristics and information hidden in EEGs to meet the needs of the clinical research. In this paper, we present a wavelet-nonlinear dynamic methodology for analysis of nonlinear characteristic of EEGs and delta, theta, alpha, and beta sub-bands. We therefore studied the effectiveness of correlation dimension (CD), largest Lyapunov exponen, and approximate entropy (ApEn) in differentiation between the interictal EEG and ictal EEG based on statistical significance of the differences. The results showed that the nonlinear dynamic char acteristic of EEG and EEG subbands could be used as effective identification statistics in detecting seizures.
Brain ; physiopathology ; Electroencephalography ; Entropy ; Epilepsy ; physiopathology ; Humans ; Nonlinear Dynamics ; Seizures

Objective To compare the efficacy of uniportal VATS and single utility port VATS in treatment of spontaneous pneumothorax.Method From January 2013 to December 2015, we retrospectively collected clinical data of 53 patients with spontaneous pneumothorax who were treated with uniportal VATS, as study group; compared with control group: 53 patients received single utility port VATS in the same period. The clinical data was compared between the two groups, including the operation time, intraoperative blood loss, drainage time, postoperative extubation time, postoperative pain score, postoperative hospitalization and recurrence.Results All patients were successfully completed the operation, no death and serious complications occurred. There were no significant differences in intraoperative blood lose, duration of chest drainage, duration of hospital stay and incidence of serious postoperative complications between two groups (P > 0.05). Mean Visual Analogic Scale (VAS) score for 24 h post-operative pain was: (2.60 ± 0.71) for uniportal VATS and (3.38 ± 0.84) for single utility port VATS (P > 0.05), 72 h post-operative pain was: (1.30 ± 0.51) for uniportal VATS and (1.58 ± 0.62) for single utility port VATS (P > 0.05). Follow up 5 ~ 36 months, median follow up was 19 months. No recurrence occurred during follow up.Conclusions The study suggested that both surgical approaches to spontaneous pneumothorax are safe and effective. Significant differences were found for early post-operative pain between the two approaches, the uniportal way is better. It is worthy of clinical promoting.

Objective:To prepare and purify siRNA targeting a proliferation-inducing ligand targeted(APRIL-siRNA),so as to provxde a basis for studying the role of APRIL in human pancreatic cancer.Methods:pET-22b-APRIL was constructed to express APRIL dsRNA of human pancreatic cancer cell line CFPAC-1 in E.coli and the product was purified by chromatography using CF-11 column.APRIL dsRNA was digested by RNaseⅢto prepare APRIL siRNA,then the reaction mixture was loaded onto a DEAE ion exchange chromatography to remove RNaseⅢfrom oligonucleotides,and size exclusion chromatography was used to purify 21 bp siRNA.The purified APRIL siRNA was used to transfect Chinese hamster ovary(CHO)cells and the expression of APRIL in CHO cells was observed under fluorescence microscope Results:APRIL dsRNA was successfully expressed in E.coli after IPTG induction and was purified by CF-11 column.dsRNA was hydrolyzed with RNaseⅢand was purified by DEAE ion exchange chromatography and size exclusion chromatography.15% nondenaturing PAGE and 12% SDS- PAGE confirmed that RNaseⅢwas removed from oligonucleotides and 21 bp siRNA was purified with size exclusion chromatography.It was also found that APRIL siRNA obviously depressed APRIL expression in CHO cells.Conclusion:We have successfully constructed APRIL siRNA targeting APRIL gene of CFPAC-1 cells with in vitro transcription,which provides a basis for knock-down of APRIL gene in CFPAC-1 cells.

Child ; Cytochrome P-450 CYP3A ; genetics ; Disease Susceptibility ; enzymology ; Female ; Genome-Wide Association Study ; Humans ; Male ; Polymorphism, Genetic ; genetics ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; genetics

Objective To investigate the application of strain rate imaging in quantitative assessment of left ventricular regional diastolic function after intracoronary stent implantation.Methods Fifty-six healthy person and 60 patients with coronary artery disease were performed quantitative assessment of left ventricular regional diastolic function by apical four chamber view,apical two chamber view and left ventricular long axis view before and after intracoronary stent implantation using strain rate imaging.Results Compared with those of normal myocardium,the peaks of strain rate curve at diastole of ischemic myocardium were reduced,and were increased after operation (P ＜ 0.05).Conclusions Intracoronary stent implantation can significantly improve the blood supply to the ischemia myocardium.Strain rate imaging can quantitatively analyze the changes of left ventricular regional diastolic function.

Endoscopes ; Humans ; Nasal Cavity ; surgery ; Nasal Septum ; surgery ; Reconstructive Surgical Procedures ; Rhinoplasty ; Surgical Flaps

Objective To determine the frequency of Toll-like receptor 4 (TLR4)polymorphisms Asp299Gly and Thr399Ile in a cohort of hematopoietic stem cell transplant recipients and their donors in China.Method We examined the polymorphisms in 208 peripheral blood samples collected from 104 recipients and their donors in a single center between 2007-2012 in Zhejiang Province,China,and Asp299Gly and Thr399Ile TLR4 gene polymorphisms were detected using the sample DNA amplification products direct sequencing and polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method.Result Both methods didn't demonstrate TLR4 polymorphisms Asp299Gly or Thr399Ile base mutation in our samples.Conclusion The TLR4 Asp299Gly and Thr399Ile polymorphisms are very rare in our part of the population of hematopoietic stem cell transplantation.

The extracting technology of salidroside, tyrosol, crenulatin and gallic acid from Rhodiolae Crenulatae Radix et Rhizoma was optimized. With extraction rate of salidroside, tyrosol, crenulatin and gallic acid as indexes, orthogonal test was used to evaluate effect of 4 factors on extracting technology, including concentration of solvent, the dosage of solvent, duration of extraction, and frequency of extraction. The results showed that, the best extracting technology was to extract in 70% alcohol with 8 times the weight of herbal medicine for 2 times, with 3 hours once. High extraction rate of salidroside, tyrosol, crenulatin and gallic acid were obtained with the present technology. The extracting technology was stable and feasible with high extraction rate of four compounds from Rhodiolae Crenulatae Radix et Rhizoma, it was suitable for industrial production.
Chemical Fractionation ; methods ; Chemistry, Pharmaceutical ; methods ; Coumarins ; isolation & purification ; Drugs, Chinese Herbal ; isolation & purification ; Gallic Acid ; isolation & purification ; Glucosides ; isolation & purification ; Phenols ; isolation & purification ; Phenylethyl Alcohol ; analogs & derivatives ; isolation & purification ; Rhizome ; chemistry ; Rhodiola ; chemistry

Objective To develop a limb support suitable for timely treatment of a large number of patients in wartime or public emergencies.Methods There were two kinds of limb supports including a ground-based rollator and a table-mounted limb bracket,which were both composed of three components for bracing,supporting and regulating.The bracing component was responsible for load bearing,the supporting one contacted the limb,and the remained one was to regulate the support.The limb support could be driven electrically,pneumatically or manually.Results The limb support had its height,angle and width regulated easily to avail itself to the patients,and had no need for extra assistance.Conclusion The limb support gains advantages in practicability,safety,comfort and portability,and thus is worthy promoting in levels of medical facilities especially the first-line medical units in emergency conditions.

Objective To understand the prevalence and risk factors of non-suicidal self-injury in middle school students.Methods 1312 middle school students of Pengzhou and Santai were selected to fill in a Risky Behavior Questionnaire for Adoluscents (RBQ-A),Family Environment Scale ( FES ),Center for Epidemiological Survey,Depression Scale (CES-D),Adolescent Self-Rating Life Events Check List (ASLEC),Social Support Scale for Adolescents (SSSA) and self-administered questionnaire.In all the research subjects,1288 were qualified for the study in April 2011 before the risk factors for non-suicidal self-injury were identified by logistic regression.Results In 1288 middle school students,22.67％ had a history of non-suicidal self-injury,with 22.70％ in boys and 22.64％ in girls.63.36％ of students had injured themselves through variouslyways,more seen in boys (26.88％) than in girls (11.36％ ) who cut or burnt themselves.The scores of ASLEC and CES-D in non-suicidal self-injury group appeared higher than that in the control group and the score of SSSA was found higher in the control group.The main risk factors for non-suicidal self-injuries were family conflict,depressive emotion,negative life events and receiving less social support.Conclusion The prevalence of non-suicidal self-injury among middle school students in Pengzhou was high,whicn called for more attention.