1.Research progress of non-receptor tyrosine kinase signal transducer and activator of transcription as a new target in colon cancer
Cancer Research and Clinic 2016;28(2):129-132
Malignant colon cells require angiogenesis and optimal tumor microenvironment for proliferation, invasion and metastasis. The non-receptor tyrosine kinase signal transducer and activator of transcription (JAK-STAT) pathway are involved in multiple processes, including chronic inflammation-associated tumorigenesis, cancer proliferation, tumor angiogenesis, immune evasion and facilitating tumor metastasis, making JAK-STAT a new target in molecular target therapy. In this review, advances on JAK-STAT pathway as a new target in colon tumorigenesis are updated, and a preliminary estimation of JAK-STAT in prognosis and target therapy will be mentioned to show a potential future of JAK-STAT in colon cancer.
2.The economic effects of rural residents' health in China: Empirical analysis based on endogeneity
Chinese Journal of Health Policy 2017;10(4):71-76
As a sort of human capital, health is a concrete manifestation of human productivity.At home and abroad, there are many empirical studies focusing on the economic effects of health that have been conducted, but the research methods have not paid enough attention to the endogeneity of health in those studies.This paper evaluates the effects of health on the income of rural residents in China with the micro panel data from China Health and Nutrition Survey.To get reliable results, the paper controls the endogenity of health by using simultaneous equation model and solves the parameters by using the three-stage least squares method.The study found that health has significantly positive effects on the income of rural residents in China, a conclusion which is in conformity with the economic effects of health.To improve the health of rural residents and fully implement the economic effects of health, the study recommends the government to put more efforts on promoting healthcare services, health-related education, and improving the living standards of rural residents in China.
3.Research on ECG de-noising method based on ensemble empirical mode decomposition and wavelet transform using improved threshold function.
Linlin YE ; Dan YANG ; Xu WANG
Journal of Biomedical Engineering 2014;31(3):567-571
A de-noising method for electrocardiogram (ECG) based on ensemble empirical mode decomposition (EEMD) and wavelet threshold de-noising theory is proposed in our school. We decomposed noised ECG signals with the proposed method using the EEMD and calculated a series of intrinsic mode functions (IMFs). Then we selected IMFs and reconstructed them to realize the de-noising for ECG. The processed ECG signals were filtered again with wavelet transform using improved threshold function. In the experiments, MIT-BIH ECG database was used for evaluating the performance of the proposed method, contrasting with de-noising method based on EEMD and wavelet transform with improved threshold function alone in parameters of signal to noise ratio (SNR) and mean square error (MSE). The results showed that the ECG waveforms de-noised with the proposed method were smooth and the amplitudes of ECG features did not attenuate. In conclusion, the method discussed in this paper can realize the ECG denoising and meanwhile keep the characteristics of original ECG signal.
Algorithms
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Electrocardiography
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Humans
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Signal Processing, Computer-Assisted
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Wavelet Analysis
4.Study on the Weights Calculation Methodology of Constituted Factors of Medical Service Price Project in 2012 Edition
Xianzhong LU ; Mengya XU ; Linlin TAN
Chinese Health Economics 2013;(9):42-44
Objective: To develop price framework of medical service price project and introduce the weights calculation method of the new edition medical service price project. Methods: According to the new instruction manuals of medical service price and the research of the resource costs based on the relative value(RBRVS)of the U.S. Health Care Financing Administration (HCFA) and the American Medical Association ( AMA ) , an analysis framework and dimension of medical service price was raised and authoritative international medical service project price methods w ere summarized. Results: Based on the percentages of constituted factors and the professional features, it found the weights calculation model could be constructed with the weights model, and it could calculate the weights of the elements. Conclusion: Medical service price can be measured and comprehensively researched from the different dimensions of the medical service price, so as to carry out the pricing work of medical service price project and provide better service for pharmaceutical reform.
5.Effect of naringenin on KIM-1 expression in rats with renal interstitial fibrosis caused by unilateral ureteral obstruction
Linlin CHEN ; Xiaoli JIAN ; Xihong XU
International Journal of Laboratory Medicine 2014;(11):1384-1386
Objective To evaluate the effect of naringenin on KIM-1 expression in rats with renal interstitial fibrosis caused by unilateral ureteral obstruction(UUO).Methods 24 SD male rats were randomly divided into Sham group,UUO group and naringe-nin group(Nar group),respectively.Rats in UUO group and Nar group got UUO to establish renal interstitial fibrosis models. Rats in Sham group only free but not ligated and cut ureters.Rats were administered saline and naringenin 25 mg/(kg·d)for 14 days.Then,24 h urine samples were collected before the rats were killed,and KIM-1 in these samples were measured by ELISA. Specimens were obtained from obstructive renal,the pathological change of renal tubule and interstitial were observe by HE and Masson staining.Moreover,the tubulointerstitial damage index was scored and the expression of KIM-1 in renal tissue was examined by immunohistochemical staining.Results Compared with Sham group,the tubulointerstitial damage index of UUO group significantly increased(P <0.05),contents of KIM-1 in urine and renal tissues also significantly increased(P <0.05).Com-pared with UUO group,the tubulointerstitial damage index score of Nar group alleviated(P <0.01),contents of KIM-1 in urine and renal tissues also reduced(P <0.05 ).Correlation analysis showed that there was positive correlation between KIM-1 in urine and renal tissues and TDI(r=0.862,0.866,P <0.01).Conclusion Naringenin can relieve renal interstitial fibrosis and reduce the content of KIM-1.
6.Comparison of anesthesia with target-controlled infusion of propofol-remifentanil/ fentanyl versus isoflurane
Zhiyu GENG ; Linlin SONG ; Xing XU
Chinese Journal of Anesthesiology 1994;0(01):-
Objective To compare the induction of and emergence from anesthesia with target-controlled infusion (TCI) of propofol-remifentanil/fentanyl and isoflurane inhalation. Methods Sixty ASA Ⅰ -Ⅱ patients (26 male, 34 female) aged
7.Prevalence of drug-resistant tuberculosis and its social and biological risk factors in five rural counties of eastern China
Linlin WU ; Yi HU ; Qi ZHAO ; Weibing WANG ; Biao XU
Chinese Journal of Infectious Diseases 2011;29(12):729-734
Objective To investigate the epidemiology of drug-resistant tuberculosis (TB) in five rural counties of eastern China and analyze the biological,demographic and social risk factors.Methods Subjects of this study were all the diagnosed TB patients registered in the five study sites in Shandong Province,Jiangsu Province and Zhejiang Province during one year of 2008- 2009.Questionnaire interview was conducted in all the subjects to acquire the socio-demographic and clinical information.Sputum samples were collected for culturing and isolating of Mycobacterium tuberculosis (M.TB) strains.All the M.TB isolates were further tested for the susceptibility to first-line drugs including rifampin,isoniazid,ethambutol and strepomycin by proportion method.Mantel-Haenszel chi-square test,Fisher's exact test,ANOVA and nonconditional Logistic regression modeling were applied for data analysis.Results Among the total 380 M.TB isolates,105 were resistant to at least one of the first-line drugs.The total drug resistant TB prevalence was 27.6%.Multidrug-resistant tuberculosis (MDR-TB) was observed in 8.4% of newly treated TB patients,whereas it was 23.3%in previously treated TB patients.After adjusted by county,gender and age of the subjects,multivariate analysis showed that previous treatment history (OR=3.900,95%CI: 1.737-8.704),tuberculosis cavity (OR - 1.987,95 % CI: 1.001 - 3.942) were independent factors influencing the occurrence of MDR-TB.Conclusions The prevalence of drug resistant TB in rural area of eastern China is relatively low compared with the average level in China,while it is still higher than the global average level.The present study highlights that TB patients with previous treatment history,cavitaryTB are correlated with MDR-TB,and elderly patients are at high risk of MDR-TB.
8.De-noising method research of ballistocardiogram signal.
Dan YANG ; Bin XU ; Linlin YE ; Jingjing JIN
Journal of Biomedical Engineering 2014;31(6):1368-1372
Ballistocardiogram (BCG) signal is a physiological signal, reflecting heart mechanical status. It can be measured without any electrodes touching subject's body surface and can realize physiological monitoring ubiquitously. However, BCG signal is so weak that it would often be interferred by superimposed noises. For measuring BCG signal effectively, we proposed an approach using joint time-frequency distribution and empirical mode decomposition (EMD) for BCG signal denoising. We set up an adaptive optimal kernel for BCG signal and extracted BCG signals components using it. Then we de-noised the BCG signal by combing empirical mode decomposition with it. Simulation results showed that the proposed method overcome the shortcomings of empirical mode decomposition for the signals with identical frequency content at different times, realized the filtering for BCG signal and also reconstructed the characteristics of BCG.
Algorithms
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Ballistocardiography
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methods
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Humans
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Monitoring, Physiologic
9.Influence of cognitive behavior intervention on negative emotion and glycosylated hemoglobin in patients with type 2 diabetes mellitus: A systematic review
Xiaoyan ZHAO ; Linlin FAN ; Xujuan XU ; Duo QIAN
Chinese Journal of Practical Nursing 2014;30(7):43-47
Objective Using the evidence-based medicine to investigate the effect of cognitive behavior intervention on physical and mental health in patients with type 2 diabetes mellitus.Methods Controlled studies related to psychological intervention on depression and glyeosylated hemoglobin in patients with type 2 diabetes were retrieved from electronic databases such as CNKI,VIP,Wanfang database and Pubmed,etc.The quality of included studies was evaluated and then data were analyzed by using RevMan5 software.Results A total of 273 articles were retrieved and finally 6 were enrolled.Results of Meta analysis were listed as follows:Cognitive behavior intervention could reduce score of Self-rated Depression Scale (SDS) in patients with diabetes mellitus.Cognitive behavior intervention could effectively reduce glycosylated hemoglobin values in patients with diabetes mellitus.Conclusions Cognitive behavior intervention can improve physical and mental health,decrease glycosylated hemoglobin and improve depression status in patients with type 2 diabetes mellitus.However,all the trials included in this review are of low quality; larger scale RCTs of higher quality are needed to confirm this conclusion.
10.The comparison of two methods of detecting pepsinogen
Lianying ZHANG ; Hu XIAO ; Xu LU ; Linlin XIAO
International Journal of Laboratory Medicine 2016;37(20):2810-2812
Objective To investigate colloidal gold immune chromatography (GICA ) and enzyme linked immunosorbent assay (ELISA) detection pepsinogen (PG) consistency of results ,so as to provide experimental evidence for the use of colloidal gold im‐munochromatography assay PG and briefly analysis of its clinical utility .Methods Totally 40 cases in our hospital digested samples and medical centers 60 healthy population sample in Endoscopy Center by endoscopy diagnosed with inflammation of the stomach disease ,respectively ,with colloidal gold immune chromatography and enzyme‐linked immunosorbent assay PG ,colloidal gold immu‐noassay chromatography method to be evaluated ,as the reference ELISA method .The results were compared to the method and bias analysis .Results GICA method with a correlation coefficient ELISA test results were greater than 0 .95 ,indicating a good correla‐tion between the two methods and there is no overall bias;sensitivity and specificity of the two methods were (0 .775 ,0 .85) and (0 .782 ,0 .823) .Conclusion Both GICA and ELISA can be used for screening or diagnosis of stomach illnesses .