Objective To evaluate the diagnostic accuracy of contrast-enhanced harmonic EUS (CH-EUS)for pancreatic cancer.Methods Patients with pancreatic occupying lesion underwent CH-EUS with ultrasonic contrast medium Sonovue.Pathological diagnoses by EUS-FNA or surgery and the follow-up results were made as the final diagnosis to evaluate the accuracy of CH-EUS for pancreatic cancer.Character-istics of CH-EUS in different pancreatic tumors were analysed.Results A total of 76 patients were en-rolled,with an average age of 53. 1 ±14. 2.Thirty-five were finally diagnosed as having pancreatic cancer, 21 local mass-type pancreatitis,10 pancreatic neuroendocrine tumor,6 cystadenoma,4 intraductal papillary mucinous neoplasm.Tumor diameter was 3. 4 ±1. 4 cm and there were 18 less than 2 cm.The sensitivity and specificity,positive and negative predictive value of CH-EUS for pancreatic cancer was 97. 1%, 92. 9%,91. 7% and 97. 5% respectively.The sensitivity was 100% combined with FNA.Conclusion CH-EUS is safe,convenient for pancreatic cancer with high accuracy and can be used as an additional diag-nostic method to EUS-FNA.

ObjectiveTo evaluate the accuracy of contrast-enhanced harmonic EUS (CEH-EUS) by using a second-generation contrast medium in differential diagnosis of pancreatic occupying lesions.MethodsPatients with suspected pancreatic neoplasms or chronic pancreatitis were enrolled and underwent CEH-EUS by using ultrasonic contrast medium Sonovue.Cytological and/or histological diagnoses were made by EUS-FNA and the final follow-up results.Characteristics of enhancement of the target areas,such as enhancement sequence,time features,pattern grade and venous elution degree were investigated.ResultsA total of 23 patients were enrolled,in which 13 were diagnosed with FNA as having pancreatic cancer,7 with chronic pancreatitis,2 with intraductal papillary mucinous neoplasms and 1 with microcystic serous cystadenoma.The accuracy of CEH-EUS was 95.65％,which was significantly higher than that of conventional EUS (78.2％).Enhancement of pancreatic cancer by CEH-EUS was later than or simultaneous with the nearby tissues,with heterogeneous low enhancement or fulfillment defect areas,and early subsidence without obvious peak.Enhancement of benign pancreatic diseases was simultaneous with the surrounding tissues,with homogenous fulfillment and simultaneous subsidence.ConclusionCEH-EUS is safe,convenient and accurate in diagnosis of pancreatic occupying lesions and can be used as an additional diagnostic method to EUSFNA.

Alzheimer′s disease is a progressive neurodegenerative disease that requires medication to improve patient symptoms, but there is an individual difference in the efficacy. In this paper, the correlation between single nucleotide polymorphism and the drug efficacy of Alzheimer′s disease (AD) in the past 20 years was searched through the databases of China National Knowledge Infrastructure, VIP Database, Wanfang Database, Pubmed, Springer Link and Cochrane Library with key words of Alzheimer′s disease, drug efficacy, single nucleotide polymorphism. The correlation between AD drug efficacy difference and gene single nucleotide polymorphism was reviewed, including ABCA1, ApoE, ChAT, CHRNA7, IL-6, A2M, CYP2D6, BChE, 5HT2a, PON-1 and ESR1 genes, so as to provide a reference basis for clinicians to select drugs in the treatment of AD.

Objective To systematically evaluate the intervention effect of social psychological intervention on the health status of patients with bariatric surgery(BS).Methods 8 databases,including PubMed,PsycInfo,and Embase and Clinic Trials,were retrieved to recruit randomized controlled trials with computer from database establishing time to Sep.2022.Independent quality evaluation was conducted by 2 researchers,and Meta-analysis was performed by the RevMan5.3 software.Results Totally 23 RCTs were included.The meta-analysis showed that psychosocial interventions in BS patients improve emotional eating and binge eating behavior[SMD=-0.44,95％CI(-0.78,-0.09),P=0.010;MD=-5.88,95％CI(-8.65,-3.11),P＜0.001],promote better quality of life[SMD=0.30,95％CI(0.02,0.59),P=0.040]and physical mobility,alleviates anxiety and depression[SMD=-0.37,95％CI(-0.67,-0.08),P=0.010;SMD=-0.59,95％CI(-0.84,-0.33),P＜0.001].However,the effect on improving eating disorders[MD=-0.01,95％CI(-0.19,0.18),P=0.950]is not significant,and subgroup analysis results of different intervention measures and follow-up times showed that there was no statistically significant difference in weight changes between the social psychological intervention group and the control group.Conclusion Psychosocial intervention can effectively improve the mental state and eating behavior of the bariatric surgery patients,improve the quality of life and increase physical activity of patients.However,the effect of intervention on eating disorder and weight change is still unclear.More high-quality clinical studies need to be carried out for further verification.