1.The current situation of pharmaceutical research primary hospital
Chinese Journal of Medical Science Research Management 2016;29(1):41-45,56
Objective To investigate the current situation of pharmaceutial research and influencing factors in primary hospitals located in Hangzhou Fuyang county.Methods A designed questionnaire was used collecting information from the pharmacists of six Fuyang city medical institutes.Results Among 156 valid questionnaires 54 (34.62%) pharmacists showed their interest in pharmaceutial research,however only 4 of them had the opportunity to participate or host such project.The top reason of interesting in research was that it would help in their job promotion and enhance their own value.We found that most of pharmacists thought that it is very difficulties to conduct research and it is not necessary to do so.The educational background was found to related with research interest with a statistical significance (P<0.001);and the difference in accomplishment was statistically significant among pharmacists (P<0.05).Conclusions Current status of research in primary hospital pharmacists is worrysome.The hospital administrators need to pay great attention to medical research,make efforts to develop and provide the excellent policy and technological platform to enhance the research activities of pharmacists.
2.The blind source separation method based on self-organizing map neural network and convolution kernel compensation for multi-channel sEMG signals.
Yong NING ; Shan'an ZHU ; Yuming ZHAO
Journal of Biomedical Engineering 2015;32(1):1-7
A new method based on convolution kernel compensation (CKC) for decomposing multi-channel surface electromyogram (sEMG) signals is proposed in this paper. Unsupervised learning and clustering function of self-organizing map (SOM) neural network are employed in this method. An initial innervations pulse train (IPT) is firstly estimated, some time instants corresponding to the highest peaks from the initial IPT are clustered by SOM neural network. Then the final IPT can be obtained from the observations corresponding to these time instants. In this paper, the proposed method was tested on the simulated signal, the influence of signal to noise ratio (SNR), the number of groups clustered by SOM and the number of highest peaks selected from the initial pulse train on the number of reconstructed sources and the pulse accuracy were studied, and the results show that the proposed approach is effective in decomposing multi-channel sEMG signals.
Algorithms
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Cluster Analysis
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Electromyography
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Neural Networks (Computer)
3.Association between gene polymorphism of plasminogen activator inhibitor and ischemic cerebrovascular disease in aged people of Henan Han nationality
Ning ZHANG ; Zhenhua WANG ; Yujun CHEN ; Xiahong WANG ; Yuming XU
Chinese Journal of Geriatrics 2012;31(11):994-997
Objective To investigate the association between gene polymorphism of plasminogen activator inhibitor (PAI-1)and ischemic cerebrovascular disease in aged people of Henan Han nationality.Methods A case control method was used,including 408 patients with ischemic cerebrovascular disease and 418 age and gender matched healthy controls.Polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP) method was used to determine the distribution of allele and genotype frequencies of PAI-1 844G/A.Results In patient group,the gene frequencies of AA,AG,GG were 18.1%,41.4%,40.4%,and the A and G allele frequencies were 38.8% and 61.2%,respectively.In the control group,the gene frequencies of AA,AG,GG were 15.8%,47.4%,36.8%,and the A and G allele frequencies were 39.5% and 60.5%.There were no significant differences in the frequencies of genotypes and alleles between the two groups (P>0.05).The different genotypes of 844G/A of PAI-1 gene were not associated with hypertension,hyperglycemia,plasma homocysteic acid levels (P > 0.05).Conclusions PAI-1 gene-844G/A polymorphism may not be independent risk factor of ischemic cerebrovascular disease in aged people of Henan Han nationality.
4.The association of BANK1 single nucleotide polymorphisms with rheumatoid arthritis in Chinese Han population
Ning KONG ; Zhiyuan WU ; Lei JIANG ; Yuming CHEN ; Ming GUAN ; Hejian ZOU
Chinese Journal of Rheumatology 2012;16(2):82-86
ObjectiveTo investigate the association of BANK1 single nucleotide polymorphisms (SNPs) with rheumatoid arthritis(RA) in Chinese Han. MethodsTwo hundreds and twenty-one RA patients and 310 healthy controls who were Chinses Han population from Huashan Hopital and Changzheng Hospital in Shanghai,China were included.DNAs were extracted from peripheral whole blood for study.Samples were genotyped for three variants rs10516487,rs17266594 and rs3733197 in BANK1 by unlabelled probe high resolution melting (HRM) assay.The genotype frequencies of the detected polymorphisms were analyzed in relation to RA and the production of autoantibodies in RA patients.ResultsThe Tr genotype frequency was much higher in RA patients than in healthy controls(X2=6.241,P=0.044).The frequencies of rs10516487 G allele,rs17266594 T allele and rs3733197 G allele were increased among RA patients compared with healthy controls,although they didn't reach statistical significance.The rs10516487 and rs17266594 were found in strong linkage disequilibrium(D'=0.993,r2=0.985).And also the major TGG haplotype of 3-SNP was significantly associated with RA patients[P=0.037,OR =1.345,95%CI (1.018-1.776)].ConclusionBANK1 rs17266594 polymorphism is susceptible to RA,while rs10516487 and rs17266594 are linked in Chinese Han population.BANK1 SNPs TGG haplotype may contribute to RA susceptibility,too.
5.Clinical study of interventional embolization for the treatment of tiny intracranial aneurysms
Yanfeng CUI ; Hao XU ; Maoheng ZU ; Yuming GU ; Qingqiao ZHANG ; Ning WEI ; Wei XU ; Hongtao LIU
Journal of Interventional Radiology 2014;(8):651-654
Objective To explore the therapeutic efficacy of endovascular embolization for the treatment of tiny intracranial aneurysms (≤3.0 mm) and to discuss its technical skill. Methods During the period from Dec. 2010 to July 2013, a total of 12 patients with tiny intracranial aneurysms (≤3.0 mm) were admitted to authors’ hospital to receive endovascular embolization therapy. Of the 12 patients, narrow-necked aneurysm (neck-to-body ratio ≤0.5) was seen in 7 and embolization with coils only was carried out, while wide-necked aneurysm (neck-to-body ratio > 0.5) was seen in 5 and stent-assisted coils embolization was adopted. Based on Raymond grading standard, the immediate therapeutic results were evaluated, and the procedure-related complications were recorded. Thirty days after the treatment , GOS grade was used to assess the results. Follow-up evaluation with angiography or through call was conducted. Results Successful embolization of the aneurysm was obtained in all the 12 aneurysms , with a success rate of 100%. Angiography performed immediately after the treatment showed that complete embolization was achieved in 8 aneurysms (66.7%) and residual aneurysm cavity was seen in 4 aneurysms (33.3%). GOS grading indicated that 12 cases belonged to grade V. The 12 patients were followed up for 1 - 12 months through telephone , and no re-bleeding occurred. Conclusion For the treatment of tiny intracranial aneurysms (≤ 3.0 mm), endovascular embolization is feasible although its safety and efficacy need to be further observed.
6.Safety and efficacy of interventional treatment for occlusion of the entire inferior vena cava
Bin SHEN ; Qingqiao ZHANG ; Hao XU ; Maoheng ZU ; Yuming GU ; Ning WEI ; Wei XU
Chinese Journal of Radiology 2014;48(3):219-222
Objective To evaluate the safety and efficacy of interventional treatment of occlusion of the entire inferior vena cava (IVC).Methods The clinical data of 6 patients with entire IVC occlusion were analyzed retrospectively.All patients were diagnosed by color Doppler ultrasound and DSA.Venography was performed under local anesthesia via internal jugular vein and femoral vein approach.The occlusion of IVC and hepatic vein were treated with balloon dilatation and/or stent placement.Follow-up examination with color Doppler ultrasound was taken 1,3,6,12 months after treatment and annually thereafter to assess the patency of IVC and hepatic vein.The pressure gradient of hepatic vein-right atrium and IVC-right atrium before and after interventional treatment were compared with paired t test.Results In 5 cases,both IVC and 1 hepatic vein were recanalized successfully.In 1 case,recanalization of IVC failed,but the right hepatic vein was recanalized successfully.The mean pressure gradient of hepatic vein-right atrium decreased from (23.2 ± 2.0) cmH2O (1 cmH2O =0.098 kPa) before treatment to (8.7 ± 3.2) cmH2O after treatment in 6 cases (t =21.6,P < 0.05).The mean pressure gradient of IVC-right atrium decreased from (26.6 ± 2.7) cmH2O before treatment to (9.4 ± 1.1) cmH2O after treatment (t =16.1,P < 0.05).Abdominal pains occurred in 3 patients after stent implantation which disappeared in 24 hours.No other complications such as bleeding and death occurred.During a mean follow-up of(42 ± 27)months (16 to 90 months),hepatic vein patency was maintained in 6 cases and IVC patency was maintained in 5 cases.Conclusion Interventional treatment of occlusion of the entire IVC is a safe and effective method.
7.Interventional treatment of hepatocellular carcinoma complicated by Budd-Chiari syndrome
Qingqiao ZHANG ; Maoheng ZU ; Hao XU ; Yuming GU ; Ning WEI ; Wei XU ; Hongtao LIU ; Yanfeng CUI ; Wenliang WANG
Chinese Journal of Radiology 2010;44(8):852-855
Objective To evaluate the efficacy of interventional therapy for hepatocellular carcinoma complicated by Budd-Chiari syndrome. Methods Clinical data and imaging studies of 17 patients with hepatocellular carcinoma complicated by Budd-Chiari syndrome were retrospectively analyzed. Budd-Chiari syndrome was diagnosed by color Doppler ultrasound and confirmed by cavography in 17 patients. Hepatocellular carcinoma was diagnosed by fine-needle aspiration cytology in 5 patients,and by color Doppler ultrasound, computed tomography and /or MRI, and elevated level of alpha-fetoprotein in 12 patients. Both percutaneous transluminal angioplasty for treatment of obstruction of the inferior vena cava and transcatheter arterial chemoembolization (TACE) for hepatocellular carcinoma were performed in all patients. During follow-up, the tumor size, liver function, serum alpha-fetoprotein level and the recanalized inferior vena cava were evaluated by liver ultrasound, CT and laboratory examination. t test was used to compare the pressure. Results Thirty-nine interventional procedures were performed in 17 patients and all operations were successful without complications. Over the follow-up period of 2 to 90 months after percutaneous transluminal angioplasty in 17 patients, re-occlusion of inferior vena cava occurred in only one patient, which was redilated successfully. Following TACE, all 17 patients survived at two months followup, 13 patients survived at 6 months follow-up, 10 patients survived at 1 year follow-up, 5 patients survived at 2 years follow-up. The pressure of vena cava was (20.5±2.1) cm H2O (1cm H2O=0.098 kPa) before the interventional theraphy, while it was (3.6±1.0) cm H2O after it (t=30.32, P<0.05). Conclusion Interventional therapy can be effectively performed for treatment of hepatocellular carcinoma complicated by Budd-Chiari syndrome.
8.Interveational therapy for various types of acute iliofemoral venous thrombosis through jugular vein
Qingqiao ZHANG ; Maoheng ZU ; Hao XU ; Yuming GU ; Guojun LI ; Ning WEI ; Wei XU ; Yanfeng CUI ; Hongtao LIU
Chinese Journal of Emergency Medicine 2008;17(7):727-729
Objective To evaluate the efficacy of interventional therapy for various types of acute iliofemoraldeep venous thrombosis (IF-VT) through jugular vein. Method Thirty-eight patients with acute IF-VT from theAffiliated Hospital of Xuzhou Medical Collge underwent catheter-directed urokinase thrombolysis through jugularvein. Results Left IF-VT or with extension of thrombus into inferior vena cava was diagnosed in 16 patients,leftIF- VT with left common iliac vein occlusion in 17 ,left IF-VT with extersion of thrombus into inferior vena cava andleft common iliac vein stenosis or occlusion in 3,and both IF-VT with left common iliac vein stenosis or occlusion in2. Complete thrombolysis and partial thrombolysis was carried out in 33 (86.8%) and 5 (13.2%) patients, re-spectively. During a period of 2 - 18 months following-up in 20 patients, reoccurrence was found in 2 patients.Conclusions Interventional therapy for various types of acute lower extremity DVT through jugular vein is a safeand effective method.
9.Considerations of the factors affecting the clinical practice of medical students in interventional radiology at present
Ning WEI ; Hao XU ; Maoheng ZU ; Yuming GU ; Qingqiao ZHANG ; Wei XU ; Yanfeng CUI ; Hongtao LIU ; Wenliang WANG
Journal of Interventional Radiology 2014;(9):822-825
As a newly - developed medical subject, interventional radiology has been widely popularized for recent years., Taking the first affiliated hospital of Xuzhou medical college for instance, this paper aims to discuss the following three major factors that influence the clinical practice of medical students in interventional radiology at present: the importance to clinical teaching, the changes of doctor-patient relationship and the professional ethic quality education. The perfection measures and countermeasures are also discussed.
10.Clinical evaluation of interventional treatment for Budd-Chiari syndrome with hepatic vein thrombosis
Qingqiao ZHANG ; Maoheng ZU ; Hao XU ; Yuming GU ; Ning WEI ; Wei XU ; Yanfeng CUI ; Hongtao LIU ; Wenliang WANG
Chinese Journal of Radiology 2011;45(7):666-669
Objective To evaluate the effect of interventional therapy for Budd-Chiari syndrome with hepatic vein thrombosis. Methods Twenty-five patients with Budd-Chiari syndrome complicated with hepatic vein thrombosis underwent catheter-directed urokinase thrombolysis, balloon dilation and/or stent placement. During follow-up, re-thrombosis and patency of the recanalized hepatic vein and inferior vena cava were evaluated by liver ultrasound. The pressure gradient of hepatic vein-right atrium or inferior vena cava-right atrium before and after interventional treatment was compared with paired t-test. ResultsTechnical success was obtained in 23 patients. Complete resolution and partial resolution of the thrombi were accomplished in 18 cases and 5 cases, respectively. The recanalized hepatic veins and inferior vena cava were patent. The mean pressure gradient of hepatic vein-right atrium dropped from (29±7) cm H2O to (8±3) cm H2O (1 cm H2O=0.098 kPa) after the interventional treatment (t=13.7,P<0.01). The mean pressure gradient of inferior vena cava-right atrium dropped from (19±4) cm H2O to (5±2) cm H2O after the interventional treatment (t=13.3, P<0.01). Failures occurred in 2 patients. Over the follow-up period of 1 to 42 months[(18±10) months]after interventional treatment in the 23 patients, one late death occurred. Restenoses of hepatic veins were found in 2 patients, which were all redilated successfully. Neither restenosis of hepatic vein nor recurrence of thrombosis was found in the other 20 patients. Conclusion Interventional therapy could be effectively performed for the treatment of Budd-Chiari syndrome with hepatic vein thrombosis.