A Web-based technology system was put forward aiming at the actual problems of the long maintenance cycle and the difficulties of the maintenance and repairing of medical equipments. Based on analysis of platform system structure and function, using the key technologies such as search engine, BBS, knowledge base and etc, a platform for medical equipment service technician to use by online or offline was designed. The platform provides users with knowledge services and interactive services, enabling users to get a more ideal solution.
Equipment and Supplies ; Internet ; Knowledge Bases ; Maintenance

Objective To discuss the application of transanal placement of ileus tube in treatment of colonic obstruction in left colorectal cancer.Methods Thirty-two patients with left malignant colorectal obstruction were divided into ordinary colonoscope group (16 cases) and superslim endoscope group (16 cases) by random digits table.The catheter success rate,catheter operating time and exposure to X-ray time was compared between two groups.Results Fifteen cases were successful and 1 case was failed in ordinary colonoscope group.Thirteen cases were successful and 3 cases were failed in superslim endoscope group.There was no significant difference in the catheter success rate between two groups (x2 =1.143,P =0.285).The catheter operating time was (42 + 15),(20 +6) min in ordinary colonoscope group and superslim endoscope group,and there was significant difference between two groups (t =3.895,P =0.005).The exposure to X-ray time was (20 + 12),(5 + 2) min,and there was significant difference between two groups (t =-3.596,P =0.007).Conclusion Transanal placement of ileus tube is more successful and convenient by superslim endoscope combined with anesthesia than by ordinary colonoscope.

AIM:To investigate the effects of down-regulated miR-9 expression on the proliferation , invasion and migration of nasopharyngeal carcinoma (NPC) cells.METHODS:Human NPC CNE1 and CNE2 cells were transfect-ed with the inhibitor of miR-9 by Lipofectamine to down-regulate the expression of miR-9, and the cells transfected with an inhibitor control were also set up .The cell proliferation and cell cycle were evaluated by CCK-8 assay and flow cytometry . The cell invasion and migration abilities were detected by Transwell invasion and wound -healing assays .Immunoblotting was applied to analyze the levels of the proteins .RESULTS:Compared with control group , inhibition of miR-9 expression in the NPC cells by transfection of the miR-9 inhibitor significantly decreased the proliferation ability (P<0.05).The per-centages of the cells in G 0/G1 phase [ CNE2: ( 57.96 ±1.39 )% vs ( 47.93 ±1.76 )%, P<0.05; CNE1: ( 51.24 ± 0.88)%vs (48.29 ±0.39)%, P<0.05] were significantly increased.The migration distances [CNE2: (186.50 ± 7.94)μm vs (247.56 ±15.56)μm, P<0.05;CNE1:(139.06 ±16.73)μm vs (230.66 ±14.27)μm, P<0.01] and the invasion ability of the CNE2 cells (43.00 ±3.17 vs 65.80 ±5.20, P<0.01) were also significantly inhibited .Moreo-ver, the tumor cells transfected with the inhibitors produced lower β-catenin.CONCLUSION:Inhibition of miR-9 expres-sion suppresses the proliferation , invasion and migration of nasopharyngeal carcinoma cells .

Objective: To investigate the correlation between sexual dysfunction(SD)and estrogen receptor (ER) gene polymorphism in Chinese Han women with epilepsy (WWE). Methods: A total of 112 married Chinese Han women with epilepsy were collected from outpatients and inpatients of the Affiliated Hospital of Yangzhou University, and 120 matched healthy women were taken as the control group.WWE were treated with antiepileptic drugs (AEDs) for one year or more.The Chinese version of female sexual function index (FSFI) was used to investigate the sexual function of the subjects.The chemiluminescence method was used to detect the sex hormones levels such as prolactin(PRL), follicle-stimulating hormone(FSH), luteinizing hormone(LH), estradiol(E2), progesterone(P) and testosterone(T). Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) was used to determine the ER gene polymorphism.Chi-square test, t-test and binary logistic regression were used for statistical analysis.The differences of the sexual function, sex hormone, ER genotype, and allele frequency were compared between the two groups.And the correlation between SD and ER gene polymorphism was analyzed. Results: (1) The proportion of SD in Chinese Han WWE was 70.5%(79/112), while that was 24.2%(29/120) in the control group.The serum prolactin (PRL) level in the WWE group was significantly higher than that in the control group (t=2.072, P=0.039). (2) The allele frequencies of ER PvuII C and AluI A in the WWE group were significantly higher than those in the control group (P=0.001; P=0.001). (3) Binary logistic regression analysis showed that PvuII CC genotype and serum testosterone level were independently correlated with SD (OR=6.074, 95%CI: 1.257-29.352, P=0.025; OR=0.412, 95%CI: 0.201-0.842, P=0.015). Conclusion ERα PvuII polymorphism may be related to the susceptibility of SD in Chinese Han WWE, and PvuII CC genotype may be the risk genotype of SD in WWE.

Objective To evaluate the efficacy of precision therapy with direct-acting antiviral drugs (DAAs) for patients with chronic HCV gene type 1b infection.Methods One hundred and thirteen patients with chronic HCV genotype 1b infection admitted in the Department of Infectious Diseases of First Hospital of Shanxi Medical University from January 2018 to July 2019 were enrolled,including 89 patients with chronic hepatitis and 24 patients with cirrhosis.Different DAAs therapeutic schedule were taken based on liver function, kidney function, complication and treatment costs.Seventy-two patients were treated with pan-genotype drugs, including 43 patients treated with Sofosbuvir and Velpatasvir (SOF+VEL), 13 treated with Sofosbuvir and Ribavirin ( SOF +RBV), and 16 treated with Sofosbuvir and Daclatasvir ( SOF +DCV).Forty one patients were treated with specific genotype DAAs , including 15 treated with Ombitasvir and Dasabuvir (OBV+DSV), and 26 treated with Elbasvir and Grazoprevir tablets (EBR+GZR).Pair t test and Chi-square test were used to compare virological response rate , the liver function and the adverse reactions were observed.Results The super-rapid virological response (SRVR) rate with DAAs treatment at 1 week was 88.5%(100／113),and the rapid virological response ( RVR) at 4 weeks of treatment was 98.2%(111／113).There was no significant differences in SRVR and RVR among the patients treated with five treatment regimens (χ2 ＝5.95 and 1.04,P＞0.05), all the patients obtained complete early virological response (CEVR) at 12 weeks and sustained virological response ( SVR12) at 12 weeks after treatment. Besides, there were no significant differences in SRVR and RVR between pan-genotype and gene-specific drugs (χ2 ＝0.03 and 0.17, P＞0.05),both CEVR and SVR12 reached 100% in all patients.The liver transaminase levels were improved in patients undergoing pan-genotype or gene-specific drugs treatment. Mild adverse reactions were observed in 5 cases, hemolysis occurred in 1 patient and it was cured after replacement of drugs.Conclusion Both pan-genotype and specific genotypes of DAAs can achieve high virological response rates.Genotypic testing should be performed before antiviral therapy , in order to accurately select treatment options and to save costs.

Objective To investigate the correlation between sexual dysfunction( SD) and estrogen receptor (ER) gene polymorphism in Chinese Han women with epilepsy (WWE). Methods A total of 112 married Chinese Han women with epilepsy were collected from outpatients and inpatients of the Affiliated Hospital of Yangzhou University,and 120 matched healthy women were taken as the control group. WWE were treated with antiepileptic drugs ( AEDs) for one year or more. The Chinese version of female sexual function index ( FSFI) was used to investigate the sexual function of the subjects. The chemiluminescence method was used to detect the sex hormones levels such as prolactin ( PRL),follicle-stimulating hormone (FSH),luteinizing hormone(LH),estradiol(E2),progesterone(P) and testosterone(T). Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) was used to determine the ER gene poly-morphism. Chi-square test,t-test and binary logistic regression were used for statistical analysis. The differ-ences of the sexual function,sex hormone,ER genotype,and allele frequency were compared between the two groups. And the correlation between SD and ER gene polymorphism was analyzed. Results ( 1) The pro-portion of SD in Chinese Han WWE was 70. 5%(79/112),while that was 24. 2%(29/120) in the control group. The serum prolactin (PRL) level in the WWE group was significantly higher than that in the control group (t=2. 072,P=0. 039). (2) The allele frequencies of ER PvuII C and AluI A in the WWE group were significantly higher than those in the control group (P=0. 001;P=0. 001). (3) Binary logistic regression a-nalysis showed that PvuII CC genotype and serum testosterone level were independently correlated with SD (OR= 6. 074, 95% CI: 1. 257-29. 352, P= 0. 025; OR= 0. 412, 95% CI: 0. 201-0. 842, P= 0. 015 ). Conclusion ERα PvuII polymorphism may be related to the susceptibility of SD in Chinese Han WWE,and PvuII CC genotype may be the risk genotype of SD in WWE.