1.Implementation of ECG Monitoring System Based on Internet of Things.
Chinese Journal of Medical Instrumentation 2015;39(6):418-420
In order to expand the capabilities of hospital's traditional ECG device and enhance medical staff's work efficiency, an ECG monitoring system based on internet of things is introduced. The system can monitor ECG signals in real time and analyze data using ECG sensor, PDA, Web servers, which embeds C language, Android systems, .NET, wireless network and other technologies. After experiments, it can be showed that the system has high reliability and stability and can bring the convenience to medical staffs.
Electrocardiography
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Internet
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Monitoring, Physiologic
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Reproducibility of Results
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Wireless Technology
2.Research on design and application of medical waste management system
Minya CHEN ; Yi ZHANG ; Liangliang LU
China Medical Equipment 2014;(10):12-13,14
Objective: Medical waste management is not only the problem of hospital, but also is an important public health problem. Apply modern information technology to insure real-time tracking and monitoring medical waste recycling, storage, disposal, improve medical waste management. Methods: Construct medical waste management system with wireless network, bar code and RFID etc. Results:By this system, transportation, storage and disposal that process of medical waste within the hospital are monitoring and supervision effective. Conclusion:The collection and transportation sectors of medical waste have been standard, to ensure the security, enhanced transparency and improved hospital management.
3.JNK signal pathway in acute necrotizing pancreatitis associated lung injury in rats
Liangliang SHI ; Mingdong LIU ; Hao ZHU ; Min CHEN ; Xiaoping ZOU
Chinese Journal of Pancreatology 2011;11(5):336-338
Objective To investigate the effect of JNK signal pathway in acute necrotizing pancreatitis (ANP) associated lung injury.Methods A total of 24 SD rats were randomly divided into sham group and ANP group,ANP rats were induced by retrograde injection of 5% sodium taurocholate into common bile duct.The rats were sacrificed 12 and 24h later,and the pancreas and lung tissue were resected and underwent routine pathologic examination,ELISA method was used to detect the level of TNF-α and IL-1β in lung tissue.Expression of JNK mRNA was detected by real time PCR,and the expression of JNK protein were evaluated by Western blotting.Results There was bleeding,necrosis,large amount of inflammatory cells infiltration in pancreatic tissue; and there was edema,pulmonary consolidation,interstitial edema,inflammatory cells infihration in lung tissue in ANP group.The levels of TNF-α and IL-1β,JNK mRNA,JNK protein,phosphorylation JNK were ( 374.3 ± 124.0) pg/ml,(649.0 ± 114.9) pg/ml,2.57 ± 0.76,1.40 ± 0.81,0.81 ± 0.20 in ANP group,which were significantly higher than those in with sham group[( 218.2 ± 68.4)pg/ml,(524.3±58.4)pg/ml,1.03±0.11,0.32±0.11,0.32±0.11,P<0.05].Conclusions JNK signal pathway plays an important role in experimental ANP associated lung injury in rats.
4.Color Doppler imaging feature of localized Castleman disease
Luzeng CHEN ; Liangliang ZHANG ; Bin WANG ; Hui ZHANG ; Yan XIONG
Chinese Journal of Ultrasonography 2012;21(8):701-703
Objective To summary the color Doppler imaging feature of localized Castleman disease.Methods From January 1997 to November 2011,32 localized Castleman diseases which were proved by pathology were analyzed.Results Round-like,hypoechoic,hypervascular lesions were showed in 23 hyalinevascular type lesions,2 of them with calcium,3 of them with structure liked lymph node hilum.Round-like,hypoechoic,hypervascular lesions or normal lymph node were showed in 5 plasma- type lesions and 4 mixed type lesions.Conclusions When round like,hypoechoic,hypervascular lesion is found by ultrasonography,Castleman should be considered.Calcium or lymph nod hilum-like structure is special finding in diagnosis of Castleman disease by ultrasonography.
5.Research progress of redifferentiation of radioiodine-refractory differentiated thyroid carcinoma
Liangliang BAI ; Bingyu RAO ; Jichun YU ; Wanzhi CHEN
Chinese Journal of Nuclear Medicine and Molecular Imaging 2017;37(9):579-583
The effect of 131I therapy for primary and metastatic lesions of thyroid carcinoma depends on the ability of iodine uptake.The loss or down-regulation of iodine-metabolizing genes represents dedifferentiation of DTC,which results in the disability to take up and accumulate 131I and eventually leads to radioiodine-refractory DTC (RR-DTC).The management of RR-DTC is extremely difficult and the prognosis is poor.It is important for the treatment and prognosis of RR-DTC to investigate the mechanism of redifferentiation.The up-regulation of thyroid iodine-metabolizing genes expression,inhibition of the changes in epigenetic modifications and intervention of the abnormal activation of signaling pathways are reviewed in this article.
6.Establishment of Evaluation Model of O2O Platform Service Quality Based on SERVQUAL Scale
Xinyan ZHANG ; Hong WU ; Yongfa CHEN ; Liangliang SUN ; Wei WANG
China Pharmacy 2016;27(7):1005-1008
OBJECTIVE:To establish a pharmacy online to offline (O2O) platform service quality evaluation model,and to provide reference for platform operators to improve the service quality. METHODS:Using SERVQUAL scale,combining the situa-tion of pharmacy O2O platform development in China,the reliability,safety and aspects of O2O platform were analyzed to sum up primary evaluation index of pharmacy O2O platform service quality. Based on this,the expert interviews questionnaire was de-signed. According to the questionnaire results,indicators were modified and empowered to construct the pharmacy O2O platform service quality evaluation model;the reliability and validity of model were validated. RESULTS & CONCLUSIONS:According to the connotations of each dimension analysis in the SERVQUAL scale and expert interview results of pharmacy O2O platform ser-vice quality,pharmacy O2O platform service quality evaluation model is constructed,including five indicators as“reliability”“se-curity”,and 18 secondary indexes as the“number of platform pharmacy”“pharmacy qualification show”“pharmacy type”. The re-sults of model index reliability and validity verification show that model construction is reasonable and can provide reference for platform operators improving service quality. Follow-up research should give full consideration to the Chinese consumer behavior habits,personal preferences and other factors to build more suitable pharmacy O2O platform service quality evaluation model in China.
7.Investigation on source and dissemination way of knowledge on schistosomi-asis prevention and control in population in Jingjiang City after transmis-sion-interrupted
Jisheng WANG ; Jianfeng CHEN ; Yahong LIU ; Liangliang SONG
Chinese Journal of Schistosomiasis Control 2016;(1):88-91
Objective To understand the source of knowledge on schistosomiasis prevention and control and the acceptable degree on different propagation patterns of population in Jingjiang City after schistosomiasis transmission?interrupted,so as to provide the evidence for the production of suitable materials for health education. Methods The permanent residents,floating population as well as the primary school students in Grade 5 and 6 in riverside regions in Jingjiang City were selected as the in?vestigation objects,the information propagation condition and the knowledge source,and the expected propagation patterns were investigated by questionnaires. Results The popularizing rates on the television,computer and mobile phone of the villag?ers were 99.81%,84.16% and 87.78%,respectively. Both the two investigated schools had the independent TV network,broad?cast and multimedia,and all the computer classroom could connected to Internet. The main sources on schistosomiasis control of permanent residents and floating population were folders and the exhibition board(62.0% and 40.5% respectively),the substan?tial material(42.0% and 33.5% respectively)and TV(40.5% and 36.0% respectively),while those of the students were video CD(100%),substantial material(99.5%)and folders and the exhibition boards(84.2%). The propagation ways with high ac?ceptable degrees among the residents and floating population were substantial material,folders and the exhibition boards and short messages by mobile phone,while those among the students were video CD,substantial material,folders and the exhibition boards. Conclusion The material on health education should be targeted to the demands of the different populations and their condition of information propagation,in addition,the Internet material should be developed and the communicational channels should be broaden.
8.Prognosis and risk factors of antineutrophil cytoplasmic antibody-associated vasculitis patients on maintaining dialysis
Lin ZHENG ; Fei HAN ; Xishao XIE ; Liangliang CHEN ; Yanhong MA ; Ying XU ; Xiaohui ZHANG ; Jianghua CHEN
Chinese Journal of Nephrology 2016;32(10):734-738
Objective To analyze the prognosis and risk factors for antineutrophil cytoplasmic antibody?associated vasculitis (AAV) patients on maintaining dialysis. Methods AAV patients on maintaining peritoneal dialysis (PD) or hemodialysis (HD) in First Affiliated Hospital Zhejiang University from June 2007 to June 2015 were included, and were followed up until death, kidney transplant, changed dialysis modalities or January 31, 2016. Patients were divided into PD group and HD group for comparison. Their survival rates and risk factors were analyzed by Kaplan?Meier analysis and COX regression model respectively. Results A total of 123 cases were chosen, with a median duration of dialysis for 854 (388, 1573) days, and with 88 cases (71.5%) on HD and 35 cases (28.5%) on PD. Fifty?two patients (42.3%) were more than 65 years old. At the median follow?up time of 36 months, 39 patients (31.7%) died. The main causes of death were cardiovascular events (30.8%) and infection (23.1%). COX regression analysis showed that patients older than 65 years old (HR=3.289, P=0.001), with cardiovascular disease (HR=3.241, P=0.003) and interstitial pneumonia (HR=2.173, P=0.048) at the dialysis onset were independent risk factors affecting survival. Conclusions Factors including age (older than 65 years), pre?dialysis cardiovascular disease and interstitial pneumonia were independent risk factors affecting survival of AAV patients on maintaining dialysis, then infections and cardiovascular events were the main causes of death.
9.Construction of eukaryotic expression vector of iASPP and its identification of biological function
Jie CHEN ; Yimin YANG ; Liangliang YANG ; Ting YANG ; Yun CAI ; Haiming XIN ; Zejun LIU
Chongqing Medicine 2013;(35):4233-4235,4238
Objective Construct the eukaryotic expression vector of inhibitory member of the ASPP family (iASPP) and trans-fect it into colon carcinoma cell lines SW480 and Lovo by liposome .Then observe the expression of iASPP and detect the cell apop-tosis by flow cytometry .Methods The amplified PCR product was digested and inserted into pMD19-T simple vector and sub-cloned into eukaryotic expression vector pcDNA3 .1(+ ) .The recombinant eukaryotic expression plasmid pcDNA3 .1(+ )-iASPP was transfected into colon carcinoma cell lines SW480 and Lovo by liposome ,the iASPP expression was analyzed by RT-PCR .The cell apoptosis was detected by FCM .Results The eukaryotic expression plasmid pcDNA3 .1(+ )-iASPP was constructed success-fully ,the gene squence of iASPP was consistent with that reported (gi 60457962) in GenBank .The mRNA expression levels of iASPP gene of SW480 and Lovo cell lines which transfect the positive plasmid were increased ,and the cell apoptosis rates were de-creased .Conclusion We successfully constructed the recombinant expression plasmid pcDNA 3 .1(+ )-iASPP ,and the plasmid were successfully expressed in colon carcinoma cell lines SW 480 and Lovo ,the cell apoptosis rates of those cell lines were decreased .These facts indicated that reducing the high expression of iASPP may be a new strategy to renew the abilities of P 53 tumor suppressor .
10.The mechanism of alteronol inhibiting the proliferation of human promyelocytic leukemia HL-60 cells.
Liangliang LIU ; Na CHEN ; Xuan YUAN ; Ying YAO ; Bo ZHANG ; Qiusheng ZHENG
Acta Pharmaceutica Sinica 2012;47(11):1477-82
This study is to investigate the mechanism of human promyelocytic leukemia HL-60 cells proliferation induced by alteronol in vitro. Human promyelocytic leukemia HL-60 cells cultured in vitro were treated with different concentrations of alteronol. Inhibition rate was detected by SRB assay. Cellular morphological changes were observed by Hoechst and AO/EB (acridine orange/ethidium bromide dye) staining. The apoptosis rate was determined by Annexin V-FITC/PI assay. Cell cycle distribution was determined by flow cytometry. Western blotting analysis was carried out to determine the cell cycle related proteins. The proliferation of HL-60 cells treated with alteronol was inhibited in a concentration-dependent manner. Based on cell viability assay, observation on cell morphology and apoptosis rate, it confirmed that alteronol played an obvious role in proliferation inhibition of human promyelocytic leukemia HL-60 cells, but it did not induce apoptosis in human promyelocytic leukemia HL-60 cells in different concentrations groups. Alteronol could effectively inhibit the proliferation of human promyelocytic leukemia HL-60 cells inducing cell cycle arrest at G1 phase, as well as, alteration expression of cell cycle proteins level of CyclinD1 and pRb.