Objective:To evaluate the spiral CT in the diagnosis of esophageal neoplasm by comparing it with conventional CT and barium meal examination.Methods:Spiral CT contrast enhancement scanning and image processing with MPR an d CTVE were performed in 15 cases.A comparison was made between the images of spiral CT and the ones of conventional CT and the images of barium meal examinat ion.Results:① On axial images with spiral CT,all lesions of 15 patients showed almo s t the same pictures as seen with conventional CT.Images clearly showed the posit ion,size,shape of the esophageal neoplasm with local extension and the relation with the adjacent structures as well as lymth node metastases.②MPR could we ll display esophageal structure through different angle and direction.The appea rances of inner wall and lesions on CTVE of esophageal neoplasm were similar to those of fiberaptic endoscopy.③Barium meal examinatiuon was a very effective sc reening method.Conclusion:Compared with conventional CT and barium meal examination,application of spiral CT provides clinicians with more useful informations.

By means of literature review,the authors initiated the behavior expression system of hospitals' social responsibilities,which is further refined and revised with questionnaires and Delphi method.13 expressions of such behavior expressions were determined,namely “providing quality of care to patients”,“undertaking rescue assignment for emergencies”,and “fulfilling government-assigned tasks”.All of the 13 expressions were supported by 75％ of the experts during the second round of experts consultation.

The study was designed to test the role of 5,2',4'-trihydroxy-6,7,5'-trimethoxy flavone nanoparticle (TTF1-NP) on lipopoiysaccharide (LPS)-induced inflammatory response, and to explore the anti-inflammatory mechanism in human hepatocellular carcinoma cells. Inflammatory responses were induced in human hepato-cellular carcinoma HepG2 cells with LPS; Proliferation effect of TTF1-NP in LPS-stimulated HepG2 cells were detected by MTT assay; The expression of TLR4, AKT/mTOR signaling related proteins and IL-6 were detected by Western blot assay. The results showed that TTF1-NP inhibited the proliferation of HepG2 cells induced by LPS in a dose-dependent manner; TTF1-NP inhibited the expression of TLR4, the activation of AKT and mTOR, and expression of IL-6 in a dose-dependent manner; TTF1-NP inhibited the activation of AKT/mTOR signaling pathway and TLR4 proteins leading to suppression of IL-6 expression in HepG2 cells stimulated by insulin. These results suggest that TTF1-NP inhibited inflammatory responses from LPS treatment with a potential mechanisms in the inhibition of AKT/mTOR pathway.

Objective : To analyze the association between multiple loci of genes and the risk of early⁃onset pre⁃ eclampsia (EOPE) with pregnancy induced hypertension. Methods : Among 382 EOPE patients who had lived in Yanbian area for more than 10 years , 192 patients were randomly selected as case group. At the same time , 192 cases of natural delivery in the hospital were randomly selected as the control group. PCR⁃RFLP method was used to determine the specific genotype and allele distribution information , and non⁃conditional Logistic method was used to obtain odds ratio (OR) and 95% confidence interval (CI) to confirm the risk of various genotypes. Results : There were two alleles of T and C at the GRB2 rs8082005 locus , TC , TT , and CC genotypes. There were two alleles of T and C at the RXRA rs3849222 locus , TC , TT , and CC genotypes. Through unconditional logistic regression analysis , in the GRB2 rs8082005 locus , compared with the TT genotype , the CC genotype was more susceptible to EOPE ( OR = 3. 155 , 95% CI = 1. 513 - 6. 579 , P = 0. 002) . In the explicit model , compared to patients with TT+ TC genotype , patients with CC genotype increased the risk of EOPE ( OR = 3. 000 , 95% CI = 1. 495 - 6. 022 , P = 0. 002) . In the RXRA rs3849222 locus , compared with the CC genotype , the TT genotype was more susceptible to EOPE ( OR = 2. 031 , 95% CI = 1. 077 - 3. 820 , P = 0. 028) . In the invisible model , compared to patients with CC + CT genotype , patients with TT genotype had an increased risk of EOPE ( OR = 2. 549 , 95% CI = 1. 421 - 4. 573 , P = 0. 002) . Conclusion There is a significant correlation between single nucleotide polymorphism (SNP) at the GRB2 rs8082005 and RXRA rs3849222 loci and the risk of EOPE in pregnant women with gestational hypertension in Yanbian area.

OBJECTIVETo systematically review the role of two common prostheses(metal on metal and metal on polythene)in total hip replacement.

METHODSStudies on two prostheses(metal on metal and metal on polythene)in total hip replacement were searched in databases including PubMed, EMBASE, the Cochrane library, CNKI database, WANFANG database, and VIP database using key words including"metal on metal", "metal on polythene", and "total hip replacement". Meta-analysis was performed using RevMan 5.2 software.

RESULTSMetal on metal group was superior to metal on polythene group in terms of Harris function evaluation(WMD＝4.40, 95%CI: 3.50-5.31, P<0.01), operation time(WMD＝6.82, 95%CI: 4.50-9.13, P<0.01), whereas other indicators showed no significant difference between these two groups.

CONCLUSIONSCompared with the prosthesis, metal on metal is better than metal on polythene in improving the Harris function when applied for total hip replacement. However, more high-quality large-scale randomized controlled trials are required to further verify it.

Fentanyl as a synthetic opioid works by binding to the mu-opioid receptor (MOR) in brain areas to generate analgesia, sedation and reward related behaviors. As we know, cerebellum is not only involved in sensory perception, motor coordination, motor learning and precise control of autonomous movement, but also important for the mood regulation, cognition, learning and memory. Previous studies have shown that functional MORs are widely distributed in the cerebellum, and the role of MOR activation in cerebellum has not been reported. The aim of the present study was to investigate the effects of fentanyl on air-puff stimulus-evoked field potential response in the cerebellar molecular layer using in vivo electrophysiology in mice. The results showed that perfusion of 5 μmol/L fentanyl on the cerebellar surface significantly inhibited the amplitude, half width and area under the curve (AUC) of sensory stimulation-evoked inhibitory response P1 in the molecular layer. The half-inhibitory concentration (IC
Animals ; Cerebellum ; Evoked Potentials ; Fentanyl/pharmacology* ; Interneurons ; Mice ; Physical Stimulation

Chickenpox ; prevention & control ; China ; Disease Outbreaks ; prevention & control ; Humans ; Schools ; Vaccination ; statistics & numerical data

Purpose To summarize the characteristics of computed tomography enteroclysis (CTE) in active ulcerative colitis (UC), and to explore the value of multi-slice CTE in the evaluation of UC. Materials and Methods Thirty-five patients with active UC confirmed by clinical manifestation, colonoscopy and pathology underwent CTE examination in the study. According to the modiifed Mayo-score, the patients were divided into mild group, moderate group and severe group, and the CTE manifestations were compared among the three groups. Results Among 35 patients, 6 patients were in the mild group, 13 in the moderate group, and 16 in the severe group. Submucosal bubbles had signiifcant differences between mild and moderate groups (P<0.05), bowel wall stratiifcation, disappearance of haustra and enlarged mesenteric lymph nodes were signiifcantly different between moderate and severe groups (P<0.05), and engorged vasa recta was significantly different between the 3 groups (P<0.05). However, bowel wall thickening, mural hyperenhencement, narrow lumen and fatty deposits around the rectum showed no difference between the three groups (P>0.05). Conclusion Multi-slice CTE can provide image features of bowel wall, intestinal tube and structures outside intestine in the evaluation of UC, thus it is useful in the diagnosis of active UC as well as in its clinical grading.

Objective To investigate the effect of carrimycin on the biological function of pancreatic cancer cells. Methods Pancreatic cancer cell lines MIA PaCa-2, BxPC-3, Panc-1, and PATU 8988 were treated with carrimycin at concentrations of 0 (control group), 2, 4, 8, and 16 μmol/L for 24, 48, and 72 hours. MTT assay was used to measure cell viability; EdU cell proliferation assay was used to observe the effect of carrimycin on DNA replication of pancreatic cancer cells; colony formation assay was used to observe the effect of carrimycin on the proliferation of pancreatic cancer cells; flow cytometry was used to analyze the effect of carrimycin on the cell cycle of pancreatic cancer cells; wound healing assay was used to analyze the effect of carrimycin on the migration of pancreatic cancer cells; Western blot was used to measure the expression levels of the markers such as epithelial-mesenchymal transition (EMT) and cell cycle-dependent protein kinase inhibitor 1A (P21); immunofluorescence assay were used to measure the expression levels of EMT-related markers. An analysis of variance was used for comparison between multiple groups, and the least significant difference t -test was used for further comparison between two groups. Results Compared with the control group, carrimycin significantly inhibited the proliferative activity of MIA PaCa-2, BxPC-3, Panc-1, and PATU 8988 cells in a concentration- and time-dependent manner (all P < 0.01); carrimycin at concentrations of 4, 8, and 16 μmol/L significantly reduced DNA replication in MIA PaCa-2 cells ( t =2.378, 4.984, and 18.970, all P < 0.05) and BxPC-3 cells ( t =4.879, 6.089, and 9.521, all P < 0.01); after treatment with carrimycin at concentrations of 4, 8, and 16 μmol/L, colony formation ability significantly decreased with the increase in drug concentration in MIA PaCa-2 cells ( t =5.889, 11.240, and 15.840, all P < 0.001) and BxPC-3 cells ( t =6.717, 15.800, and 18.850, all P < 0.001). After treatment with carrimycin at concentrations of 4, 8, and 16 μmol/L, there was a significant increase in the proportion of cells in G1 phase in MIA PaCa-2 cells ( t =9.071, 12.280, and 19.360, all P < 0.0001) and BxPC-3 cells ( t =3.061, 4.962, and 8.868, all P < 0.05), and there was a significant reduction in the proportion of cells in S phase in MIA PaCa-2 cells ( t =2.316, 4.165, and 5.562, all P < 0.05) and BxPC-3 cells ( t =2.424, 3.264, and 5.744, all P < 0.05). Western blot further demonstrated that compared with the control group, the expression level of the cell cycle-related protein P21 gradually increased with the increase in the concentration of carrimycin in MIA PaCa-2 cells ( t =5.437, 6.453, and 8.799, all P < 0.001) and BxPC-3 cells ( t =25.130, 44.750, and 52.960, all P < 0.000 1). Wound healing assay showed that after treatment for 12, 24, and 48 hours, carrimycin at concentrations of 0, 4, 8, and 16 μmol/L significantly reduced the lateral migration of MIA PaCa-2 cells (all P < 0.05) and BxPC-3 cells (all P < 0.05). Western blot showed that compared with the control group, carrimycin treatment at concentrations of 4, 8, and 16 μmol/L significantly upregulated the expression of the epithelial marker E-cadherin in MIA PaCa-2 cells ( t =2.388, 4.899, and 5.819, all P < 0.05) and BxPC-3 cells ( t =2.533, 5.836, and 6.774, all P < 0.05) and significantly downregulated the expression of the interstitial marker Snail in MIA PaCa-2 cells ( t =12.440, 14.830, and 16.800, all P < 0.000 1) and BxPC-3 cells ( t=5.039, 5.893, and 7.725, all P < 0.01), and it also significantly downregulated the expression of the interstitial marker Vimentin in MIA PaCa-2 cells ( t =3.105, 7.752, and 11.200, all P < 0.05) and BxPC-3 cells ( t =2.555, 4.883, and 9.153, all P < 0.05). Conclusion Carrimycin can effectively inhibit the proliferation, migration, and EMT process of pancreatic cancer cells, thereby exerting an antitumor biological activity.

Humans ; Pancreatic Neoplasms/metabolism* ; Prognosis ; Adenosine Triphosphatases/metabolism* ; Chromosomal Proteins, Non-Histone/metabolism*