1.Carotid ultrasound screening of ischemic cerebral apoplexy in high-risk group and exploration of behavioral influence factors
Ling QIN ; Fang TANG ; Chengqi ZHANG
Chinese Journal of Behavioral Medicine and Brain Science 2014;23(5):433-435
Objective To investigate carotid atherosclerosis and its relevant risk factors of ischemic cerebral apoplexy in high-risk population and to explore new modes of behavioral influencing factors based on health management platform.Methods Using the carotid ultrasound screening of personnel undergoing physical examination,the differences of the related risk factors were studied among 1 152 cases of carotid atherosclerosis with differ ent gender and different age and different disease periods.Results High-risk population between 40-49 years wasmainly focused on mild lesions,and the numbers of serious lesions increased significantly among people older than 70;male patients numbered 51 were significantly much more than the females numbered 21 (P<0.01)during mild lesion period,there was no statistical significance between male numbered 36 and female numbered 29 during serious lesion period (P>0.05).Setting mild and serious period respectively as the dependent variables,and hypertension,overweight,dyslipidemia,diabetes mellitus,smnoking,physical activity and atrial fibrillation as the independent variables to conduct logistic regression analysis,it showed that mild lesions were related to overweight,hypertension and dyslipidemia.The risk factors of serious lesion period included hypertension,overweight,diabetes mellitus,dyslipidemia,atrial fibrillation,smoking and lack of physical activity.The female detection rates of hypertension and dyslipidemia in female patients,which were 83.8% and 44.1% respectively,were higher than those in male patients,which were 67.6% and 31.0% respectively.The detection rates of smoking and arterial fibrillation in female patients,which were 0.7% and 0.3% respectively,were lower than those in male patients,which were 20.7% and 1.0% respectively.Conclusions Early detection of carotid atherosclerosis lesions and its relevant risk factors as soon as possible,and early intervention influencing factors to mild lesions to prevent the atherosclerosis from getting worse.A new model of zero level prevention can be developed to control of ischemic stroke based on health management platform.
2.The anti-tumor effect of Cytochrome oxidase P450 3A4 combined with Cyclophosphamide in vitro
Wei ZHANG ; Jishi WANG ; Yuan YANG ; Qin FANG
Fudan University Journal of Medical Sciences 2009;36(4):384-388
Objective To clone CYP3A4 gene and to construct CYP3A4 recombinant mammalian expression vectors which are transferred into K562 cells for expression,and detect the anti-tumor effect of CYP3A4 combined with Cyclophosphamide (CPA) in vitro.Methods Mammalian expression vector containing CYP3A4 gene cloned from human hepatocytes by RT-PCR were constructed and transferred into K562 cells via liposome. The expression of CYP3A4 was detected by RT-PCR and Western blot respectively. MTT detected the anti-tumor effect of CYP3A4 recombinant mammalian expression vectors combined with CPA.Results We cloned CYP3A4 gene and constructed the recombinant mammalian expression vectors pcDNA3, 1/myc-His A (+)-CYP3A4 successfully. Both RT-PCR and Western blot showed significantly higher mRNA and protein expression of CYP3A4 in gene-transfected group than in empty vector-transfected controls and in empty cells controls. The IC_(50) values were 1. 090 16 mmol/L in gene-transfected group, which were significantly lower than in other two groups and could be reduced and increased by the revulsant and inhibitor respectively.Conclusions CYP3A4 recombinant mammalian expression vectors had anti-tumor effect cooperating with CPA, and the effect could be increased and reduced by the revulsant and inhibitor of CYP3A4 respectively.
3.Expression and Identification of Inclusion Forming-related Domain of NS80 Nonstructural Protein of Grass Carp Reovirus
Chao FAN ; Lanlan ZHANG ; Chengfeng LEI ; Qin FANG
Virologica Sinica 2009;24(3):194-201
Grass carp reovirus (GCRV), a double stranded RNA virus that infects aquatic animals, often with disastrous effects, belongs to the genus Aquareovirus and family Reoviridea. Similar to other reoviruses, genome replication of GCRV in infected cells occurs in cytoplasmic inclusion bodies, also called viral factories. Sequences analysis revealed the nonstructural protein NS80, encoded by GCRV segment 4, has a high similarity with uNS in MRV(Mammalian orthoreoviruses), which may be associated with viral factory formation. To understand the function of the uNS80 protein in virus replication, the initial expression and identification of the immunogenicity of the GCRV NS80 protein inclusion forming-related region (335.742) was investigated in this study. It is shown that the over-expressed fusion protein was produced by inducing with IPTG at 28oC. In addition, serum specific rabbit antibody was obtained by using super purified recombinant NS80(335.742) protein as antigen. Moreover, the expressed protein was able to bind to anti-his-tag monoclonal antibody (mouse) and NS80(335-742) specific rabbit antibody. Further western blot analysis indicates that the antiserum could detect NS80 or NS80C protein expression in GCRV infected cells. This data provides a foundation for further investigation of the role of NS80 in viral inclusion formation and virion assembly.
4.Functions of long noncoding RNAs and their roles in ocular diseases
Fang-Kun, ZHAO ; Yu, QIN ; Jing, LI ; Jin-Song, ZHANG
International Eye Science 2016;16(8):1469-1473
?Advances in genome-wide analysis have revealed that up to 90%of the human genome is transcribed.However, only approximately 1% of RNA transcripts encode proteins, and the remaining transcripts are noncoding RNAs.Noncoding RNAs can be roughly divided into small noncoding RNAs (<200nt ) and long noncoding RNAs ( LncRNAs, >200nt ). Small noncoding RNAs include microRNAs, transfer RNAs and small nucleolar RNAs, whereas the long noncoding RNAs comprise ribosomal RNA, natural antisense transcripts, etc. Although the biosynthesis and biological activities of microRNAs are well studied through bioinformatics and active biological molecules analysis, the understanding of LncRNAs on these aspects is still limited.LncRNAs play multiple roles in regulating gene transcription and translation, and epigenetics.Aberrant LncRNAs expression can occur in various pathological processes and significantly related to the pathogenesis or poor prognosis of ophthalmological diseases. In this review, we will focus on the characteristics and regulatory functions of LncRNAs that are commonly associated with ophthalmological diseases.
5.Association of non-alcoholic fatty liver with plasma homocysteine and the methylenetetrahydrofolate reductase gene polymorphism in patients of type 2 diabetes mellitus in Shanxi, China
Ling HU ; Qiaohui ZHANG ; Fang MIAO ; Jie QIN ; Fie LIU
Chinese Journal of General Practitioners 2009;08(6):385-388
To investigate the relationship between plasma level of homocysteine(Hcy) and the methylenetetrahydrofolate reductase ( MTHFR ) gene polyroorphism with non-alcoholic fatty liver in patients with type 2 diabetes mellitus (T2DM). Methods In a case-control study, plasma levels of Hcy, folic acid (FA), vitamin B12 (VitB12), glycosylated hemoglobin Alc (HbAlc), fasting blood glucose (FBG), total cholesterol and triglyceride were measured in 159 T2DM patients with and without non-alcoholic fatty liver ( NAFL), as well as 52 normal controls. Mutation of the C677T of MTHFR gene was determined by polymerase chain reaction-restricted fragment length polymorphism (PCR-RFLP) for all of them. Results Patients of T2DM both without NAFL (96 case) and with NAFL had higher prevalence of hyperhomocysteinemia (Hhcy) (49% and 21%, respectively ) than normal controls did (4 cases, 8% ) (P<0.05), while patients of T2DM with NAFL had higher prevalence of Hhcy than those without it did (P <0. 05). Plasma level of Hey positively correlated to genotype frequency of the MTHFR gene, plasma 0levels of HbAlc and FBG in patients of T2DM, with coefficients of correlation of 0.248, 0.423 and 0.242, respectively (P < 0.05). Results of multiple logistic regression analysis showed that course of the disease, body mass index, plasma levels of FBG and Hcy all were independent risk factors for non-alcoholic fatty liver in patients with T2DM. Conclusions Hhey was an independent risk for non-alcoholic fatty liver and plasma level of Hey was influenced by frequency of the TT genotype of the MTHFR gene, plasma levels of FA and VitB12, as well as metabolic disturbance in patients with T2DM.
6.Genetics and pathophysiological mechanisms of moyamoya disease
Daobin CHENG ; Jiede ZHANG ; Fang LYU ; Chao QIN ; Wei WEI
International Journal of Cerebrovascular Diseases 2014;22(6):458-463
Moyamoya disease (MMD) is a chronic and progressive cerebrovascular disease which is characterized by the bilateral internal carotid artery ends and (or) stenosis or occlusion of anterior cerebral artery and middle cerebral artery initial segments,compensatory proliferation of small blood vessels in the skull base and formation of abnormal vascular network.Its etiology and pathogenesis remains unclear.The present studies speculate that MMD may be a polygenic disease,inflammation,immune response,abnormal cytokine secretion,endothelial progenitor cell change and nitric oxide level change are associated with the occurrence and development of MMD.This article reviews the advances in research on the genetics and pathophysiological mechanism of MMD.
7.Progress in the isolation and purification methods of adipose-derived stem cells
Qin LIU ; Liping WANG ; Fang CHEN ; Yi ZHANG
Chinese Journal of Comparative Medicine 2015;(7):69-73
Adipose-derived stem cells ( ASCs ) as potential seeded cells have been widely used in tissue engineering.Thus to obtain enough, high activity, high purity adipose-derived stem cells is the particular important premise of the application in tissue engineering.In this paper, the isolation and purification methods of ASCs were reviewed and the merit and demerit of different methods were compared in order to provide theoretical basis for safe and high-effective isolation and purification of ASCs.
8.Efficacy Evaluation ofDuhuo Jisheng Decoction in Treating Knee Osteoarthritis with Liver and Kidney Deficiency Syndrome by Ultrasound
Xiaoli ZHOU ; Qin SHAO ; Ying ZHANG ; Fang XIAO
Chinese Journal of Information on Traditional Chinese Medicine 2015;(1):18-21
Objective To evaluate the clinical efficacy ofDuhuo Jisheng Decoction in treating liver and kidney deficiency syndrome of knee osteoarthritis (KOA) by ultrasound.Methods A total of 120 cases of KOA patients with liver and kidney deficiency syndrome were randomly divided into two groups (each contains 60 cases). Control group took hydrochloric acid glucosamine capsules, while treatment group tookDuhuo Jisheng Decoction additionally for 8 weeks. ESR, CRP, WOMAC, joint swelling scores, and TCM syndrome scores of the two groups were determined, and the sonographic characteristics of knee-joint effusion in patellar fabricius, synovial membrane, cartilage and bone erosions were compared before and after treatment.Results There were significant differences in ESR, CRP, WOMAC, joint swelling scores, and TCM syndrome scores between before and after treatment in both groups (P<0.05,P<0.01). The knee-joint synovial membrane got thinner after therapy in osteoarthritis patients, and the effusion in knee-joint also decreased. The vessel flow signals in knee-joint synovial membrane of osteoarthritis decreased after drug therapy (P<0.05,P<0.01).ConclusionDuhuo Jisheng Decoction can improve clinical efficacy of KOA with liver and kidney deficiency syndrome. Ultrasound can clearly observe the changes of effusion in patellar fabricius, and synovial membrane, and can provide good imaging assessment for the drug therapy for KOA patients.
9.Domesit c and of reign undergraduates course education of health information management
Fang QIN ; Haitong LIU ; Ke ZENG ; Shijing ZHANG
Chinese Journal of Medical Library and Information Science 2014;(11):1-8
It was found that the training targets, offered courses and training levels differed greatly in China and foreign countries by comparing the domestic and foreign education of health information management and the offered courses for undergraduates in 8 foreign and 11 domestic medical universities , indicating thateducation of healthin -formation management should be internationalized and standardized with the IMIA international recommendations as its guidance , its training target defined, and its course system rationalized .
10.Primary culture of rabbit fibroblast-like synoviocytes using an improved explant culture method
Fang CHEN ; Qin LIU ; Liping WANG ; Lifeng CHEN ; Yi ZHANG
Chinese Journal of Comparative Medicine 2016;26(4):75-78,85
Objective To establish an easier and better method for primary culture of rabbit fibroblast-like synoviocytes(FLS) by modified tissue cell culture.Method Healthy rabbit joint synovial layers were cut into small pieces and siphoned off water attached on the tissue with sterile filter paper and then cultured.The growth status and morphology were observed.The growth curve of the 3rd passage cells was measured by CCK-8 assay, and the expression of vimentin was detected by immunocytochemistry.Results The FLS cultured in vitro exhibited a spindle-shaped appearance and could rapidly expand.The cell growth curve was typical of S type, and the cells highly expressed vimentin.Conclusions Primary culture of rabbit FLS by the improved explant culture method is successfully established.The method is simple and highly efficient.It provideds a new method for isolation of FLS.