Event related potential generated and developed in 1990's,which provides an objective and feasible approach to describe mental activities and evaluate cognitive function.It has become a study focus of mentalics,neurology,gerontology and psychology.Event related potential plays an important role in clinically evaluating and identifying various cognitive disorders.This paper summarized clinical application of event related potential P300.

Abstract Ten compounds were isolated from the stems of Viburnum plicatum Thunb.vat.tomentosum Miq.and were identified as 3,4,5-trimethoxyphenyl-l-O-β-D-glucopyranoside (1),isotachioside (2),tachioside (3),koaburaside (4),glucosyringic acid (5),lupeol (6),ursolic acid (7),chlorogenic acid (8),5-O-caffeoyl quinic acid butyl ester (9),and tricin-7-O-β-D-glucoside (10),respectively.Compounds 1-10 were isolated from this plant for the first time.

This paper is to report the investigation on the metabolic behavior of Staphylococcus aureus (S. aureus) after given Qingkailing injection, and with the aim of seeking for a new quality control method based on biological assessment. The growth thermogenic curves of S. aureus were determined by microcalorimetry and analyzed by computer. The results showed that in the concentration range of (0-5.00%), the growth thermogenic curves of S. aureus were declined and removed back with increasing dosage of Qingkailing injection; the main parameters (T1, T2, k1, P1, P2 and I) and the dosage of Qingkailing injection have good correlation. The 50% inhibiting dosage is 3.26 %, and the optimal inhibiting dosage is 5.47%. Difference could be detected among the Qingkailing injection samples from different factories and different batches. It is proved that Qingkailing injection could inhibit the metabolic behavior of S. aureus, and microcalorimetry might be applied in the quality assessment of Qingkailing injection.

This study aimed to identify Inulae Herba, Inulae Flos and their closely related species using the ITS2 bar-code, and secure the quality and clinical curative effect of these medicinal materials. DNA was extracted from Inula linariifolia, I. japonica, I. britanica, which are the original species of Inulae Herba and Inulae Flos, together with their closely related species. The ITS2 sequence was amplified by PCR and sequenced bidirectionally. Sequence assembly and generation of consensus sequence were conducted by the CodonCode Aligner. The genetic distances were comput-ed using MEGA 5.0 in accordance with the Kimura-2-parameter (K2P) model, and the phylogenetic tree constructed by the neighbor-joining (NJ) method. The results showed that the ITS2 sequences of the various species have stable variable sites. The intraspecific genetic distances among Inulae Herba and Inulae Flos were obviously lower than the interspecific genetic distance among the above two medicinal materials and its adulterants. The NJ tree based on ITS2 sequences can clearly differ from Inulae Herba, Inulae Flos and their closely related species. It is concluded that ITS2 sequence can be used as DNA barcode to identify Inulae Herba, Inulae Flos and their closely related species.

Objective: To analyze the incidence of pneumoconiosis among workers in the coal industry in the past 13 years in Chongqing, understand the different epidemiological characteristics of new pneumoconiosis among workers in the coal industry in the city, provide basic evidence for the prevention and treatment of pneumoconiosis. Methods: Collecting new cases of pneumoconiosis diagnosed in the coal industry in Chongqing in January 2006-May 2018, and analyze its epidemiological characteristics. Results: In January 2006-May 2018, 25329 cases of pneumoconiosis were added to workers in the coal industry in Chongqing, and 23, 328 cases were present, all male. Among the existing cases: coal workers' pneumoconiosis accounted for 89.30%, silicosis accounted for 10.70%; age distribution was 50-59 years old. The main, accounting for 45.19%, the average age of onset was 52.21±7.45 years; the actual dusting age was mainly 10-19 years, the average actual working age was 17.52±8.47 years; the distribution of the work was mainly by the main coal mining (53.20%) ; There are more new cases in enterprises, accounting for 88.86%; distributed in 36 districts and counties. Conclusion There was a large number of new pneumoconiosis diseases in the coal industry in Chongqing. Different measures should be taken according to the characteristics of different enterprises, and relevant enterprises should be urged to take the initiative to carry out occupational health surveillance, effectively protect the health of workers, improve the coordination mechanism, improve medical security, and gradually realize government assistance and Social care is combined.

Objective ToimprovetherecognitionofovariancysticlesionsbyanalyzingCTand MRIappearances.Methods A retrospectivereviewofCTand MRIimagesof67caseswithpathologicallyprovenofovariancysticlesionswasperformed.Among which,58casescarriedoutplainCTscan,52casesunderwentenhancedCTscan,12casesunderwentplainMRIscan,and7casesunderwent enhancedMRIscan.Results 20caseswereovariancystadenomas,14caseswerecystadenocarcinomas,8caseswereteratomas(1case wasmalignant),5caseswerestrumaovarii,15caseswerecysts,3casesweremetastases,and2caseswereovariantuberculosis.The CTand MRIcharacteristicsofthecysticlesions,inculdingsize,shape,thicknessofcystwall,wallnodule,densityorsignalintensity andenhancementfeatureswerevaluableindifferentialdiagnosisofovariancysticlesions.Conclusion CTand MRIappearancesofovarian cysticlesionshavesomecharacteristics,includingcysticwallandseptaofcystadenocarcinomasirregularthickened,papillaryprotuberance andascites.Teratomasoftencontainfatandcalcification.Strumaovariipresentsmultilocularcystic-solidmass,withthesolidportions markedenhancement.Metastatictumorshaveahistoryofprimarygastrointestinalneoplasmsandperitonealeffusion.

UNLABELLEDOBJECTIVE To investigate an operative method of combined resection of preseptal fat: and partial retro-orbicularis oculus fat (ROOF) for correction of upper eyelid heaviness, and evaluate the efficacy and safety of the method.

METHODSPreseptal fat lies widely under the orbicularis oculi in the upper eyelid, and retro-orbicularis oculus fat (ROOF) lies in the lateral supraorbital area. Combined resection of preseptal fat and partial ROOF was performed in patients selected by examination. The efficacy and safety were evaluated by follow-up study.

RESULTSFrom May 2011 to July 2013, 38 selected patients received the treatment with 3 months to 28 months follow up. The heaviness of upper eyelid improved in all cases. One patient developed postoperative hematoma, and another patient had a transient numbness over the lateral upper brow region. 37 patients were satisfied with the result.

CONCLUSIONSCombined resection of preseptal fat and partial ROOF was effective in reducing the heaviness of upper eyelid, without major complications. The operative method should be an important adjunct for selected patients undergoing blepharoplasty.

Adipose Tissue ; surgery ; Blepharoplasty ; adverse effects ; methods ; Eyelids ; surgery ; Facial Muscles ; Follow-Up Studies ; Forehead ; Humans ; Safety

Objective To investigate the utility of plasma procalcitonin (PCT) as an early predictor for postoperative complications in patients who underwent elective pancreaticoduodenectomy (PD).Methods Clinical data of 87 patients who underwent elective PD in Changhai Hospital from March.1, 2016 to Dec.31, 2016 were collected.The general data, postoperative recovery, serum PCT level and white blood cell (WBC) count before, 1 d, 3 d and 5 d after PD were recorded.ROC curve was drawn and AUC was calculated to determine the cutoff value, sensitivity and specificity.Patients were divided into complication group (n=42) and noncomplication group (n=45) based on the occurrence of post-operative complications, and the comparisons between the two groups were performed.Results There were no significant differences on the age, gender, diabetes, obstructive jaundice, laboratory tests including PCT, operative time, blood loss volume during surgery and tumor type between the two groups, which were comparable.Complication group had longer hospitalization than noncomplication group (24 d vs 15 d,P<0.001), and the differences were statistically significant.In complication group, 18 patients had pancreatic fistula, 13 had peritoneal infection, 7 had gastric empty dysfunction, 8 had bleeding, 2 had bile fistula and 2 had incision infection after PD.The postoperative plasma PCT level in patients with gastric empty dysfunction, bleeding, bile fistula and incision infection was not statistically different from those in noncomplication group (all P>0.05), but the plasma PCT level in patients with pancreatic fistula and peritoneal infection on 3 d and 5 d after PD was significantly higher than those in noncomplication group, and the difference was statistically significant (all P<0.05).The combination of plasma PCT and WBC on 3 d and 5 d after PD was superior to PCT or WBC alone in predicting pancreatic fistula (sensitivity 88.9%, 72.7%;specificity 68.5%, 78.2%) and abdominal infection (sensitivity 100%, 100%;specificity 45.9%, 44.4%).Conclusions Plasma PCT could predict the occurrence of abdominal infection and pancreatic fistula after PD.The combination of PCT and WBC might be more valuable in predicting abdominal infection and pancreatic fistula.

Traditional blepharoplasty has a role in improving pseudoherniation of orbital fat. However, it ignored the deep lid-cheek junction, which is a significant periorbital changes associated with aging. With the enhanced understanding of the anatomy of the lid-cheek junction, multiple techniques have developed to address how to blend the lid-cheek junction. The aim of this review is to provide current evidence on various techniques used to obtain a youthful lid-cheek junction and to show the role of blending the lid-cheek junction in modern lower blepharoplasty.

Objective To analyze and evaluate the CT and MRI features of synovial sarcoma (SS).Methods Clinical and imaging data of 25 cases with SS confirmed by pathology were retrospectively analyzed.1 5 cases with CT scan,including 1 1 contrastGenhanced CT scan,and 1 2 cases with MRI scan,including 8 contrastGenhanced MRI scan.Results Among 25 cases,1 8 were located in the lower extremities,2 in the upper extremities and in the chest wall respectively,1 case in the lung parenchyma,mediastinum and spine respectively.1 8 cases were deep seated,while 1 9 cases were lobulated.On CT image,most of the lesions were isodense or hypodense to muscle,while 3 cases presented peripheral calcification,and 9 cases showed progressive enhancement.On MRI,10 cases were isointense or slight hypointense on T1 WI,while 9 cases presented hyperintense or slight hyperintense on T2 WI.9 cases showed cystic change (7 of them located in the periphery),and 8 cases showed short T1 signal.3 cases demonstrated "fluidGfluid levels",and 9 cases exhibited hypointense septa.7 cases revealed "triple sign"on T2 WI and 7 cases showed obviously heterogenous enhancement.Conclusion Synovial sarcomas are mostly located in the lower extremities,with clear margins,peripheral cystic changes,intramural hemorrhage,"triple sign"on T2 WI and progressive enhancement.