1.Induction of connective tissue growth factor mRNA expression by advanced glycosylation end products in cultured rat renal mesangial cells
Guihua ZHOU ; Cai LI ; Chunsheng MIAO
Chinese Journal of Pathophysiology 1986;0(02):-
AIM: To explore the effects of advanced gly cosyla tion end products (AGEs) on connective tissue growth factor (CTGF) mRNA expressi on and extracellular matrix (ECM) synthesis in cultured rat renal mesangial cel ls. METHODS: Rat renal mesangial cells were cultured in vitro un der standard conditions. The content of fibronectin (FN) and type Ⅳ collagen (ColⅣ ) were determined with ELISA after stimulation by AGE-BSA and BSA, respectively. CTGF mRNA expression was assessed by RT-PCR. RESULTS: CTGF mRNA was significantly increased by AGE-BSA in cul tured mesangial cells in a time-and dose-dependent manner compared with BSA cont rol (P
2.SHORT-TERM ANTI-HBV EFFICACY OF FOSCARNET SODIUM
Ruiqi ZHANG ; Xiaohui MIAO ; Xion CAI
Medical Journal of Chinese People's Liberation Army 1982;0(03):-
To investigate the short term anti HBV efficacy of foscarnet sodium, sixty seven patients with various types of chronic hepatitis B were randomly divided into two groups. The experimental group (47 cases) was assigned to receive foscarnet sodium 3 0g by intravenous infusion twice daily in addition to general liver protective medicine for 15 days. The control group (20 cases) was treated with regular liver protective medicine only. The quantity of HBV DNA was measured with equivalent competitive PCR combining with DNA hybridization quantitative detection technique before and after treatment (once a week). The HBV markers and liver functions were also tested before and after treatment. In antiviral therapy group, the patients with different types of hepatitis B had their liver functions improved. HBV DNA in 13 patients became negative by PCR. Two of HBeAg positive patients became sero converted. Foscarnet sodium can inhibit HBV efficiently and quickly. The replication of HBV DNA can be greatly suppressed in the first week but without significant change in the second week in some cases. Foscarnet can be one of the drugs of choice in a combined therapy or as the initial drug in a sequential therapeutic regime.
3.Effects of the complexus of radix salviae miltiorrhizae and ligustrazin on the learning and memory ability in Alzheimer disease rats
Weiqian CAI ; Jianchun MIAO ; Youdi LUO
Chinese Journal of Primary Medicine and Pharmacy 2008;15(7):1091-1092
Objective To study the effect of the complexus of radix salviae miltiorrhizae and lignstrazin (DCs) on the learning and memory impairment in Alzheimer disease rats. Methods Rats were randomly divided in- to 5 groups(10 rats/group):normal eontrol group, Alzheimer disease model group toxified with AlCl3 and D-gal,3 groups toxified with AICl3 and D-gal,whieh were treated with the different drugs including piracetam and DCs1,2. After 80 days,step-through and morris water maze experiments were used to detect the learning and memory ability. Results Compared with Alzheimer disease model group,DCs obviously improved the learing and memory ability of Alzheimer disease rats,it is increased significantly that active reaction, and the number of active avoidance, improve achievement, evasion failed to reduce the number of passive evade significantly shorten the delay time in Des-treated group. Conclusion DCs markedly improved the learing and memory ability of Alzheimer disease rats.
4.Analysis of correlated risk factors in evolving cerebral infarction
Xinjun MIAO ; Pingping CAI ; Guodong YUAN
Chinese Journal of Practical Internal Medicine 2001;0(10):-
Objective To analyse correlated risk factors of evolving cerebral infarction(ECI).Methods The follow data was recorded in the acute cerebral infarction (ACI)cases when they were admitted :sex,age,systolic blood pressure(SBP),diastolic blood pressure(DBP),history of disease (diabetes mellitus,hypertension,hyperlipidaemia,cerebral infarction,hyperuricemia or smoking).The following examinations or determinations were done,including:white blood cell count (WBC),platelet count (PLT),blood gluconate(GLU),PT-INR,fibrinogen(FG),TT-INR,APTT-INR,C-reactive protein(CRP),D-dimer(D-D),products of fibrin degradation(FDP),anti-thrombin Ⅲ(ATⅢ),apolipoprotein A(apoA),apolipoprotein B(apoB),blood urea nitrogen(BUN),creatinine(CR),triglyceride (TG),high density lipoprotein (HDL),low density lipoprotein (LDL),very low density lipoprotein (VLDL),GOT,lactate dehydrogenase(LDH),creatine phosphokinase (CPK),MB isoforms of creatine phosphokinase (CPK-MB),? hydroxybutyrate dehydrogenase (?-HBDH),troponin I(TnI),cerebral CT or MRI and carotid ultrasonography.The patients were divided into two groups,ECI and completed cerebral infarction (CCI),according whether neurons function scale deteriorated.When cases of both groups exceeded 50,we took statistic test by SPSS10.0 statistic software.Results 8 of the above 46 markers had significant defference between the two groups,including CRP,WBC,apoB,GLU,LDH,CPK-MB,?-HBDH and DBP.ECI was more common in patients who had lower DBP or higher CRP,WBC,apoB,GLU,LDH,CPK-MB,?-HBDH when they were admitted.Conclusion The increase of CRP,WBC,apoB,GLU,LDH,CPK-MB,?-HBDH or decrease of DBP when patients are admitted can be predictive markers of ECI.
5.Mutation analysis of DJ-1 in patients with early-onset Parkinson's disease and relationship between the g.168_185del polymorphism and Parkinson's disease
Miao CAI ; Xinzhen YIN ; Zhiyuan OUYANG ; Baorong ZHANG
Chinese Journal of Neurology 2013;46(10):655-658
Objective To evaluate the prevalence of the DJ-1 mutation in early-onset Parkinson's disease (EOPD) patients,and analyzed the association between the certain polymorphic marker g.168_185del in intron1 and Parkinson' s disease (PD).Methods We screened all 7 exons and exon-intron boundary regions of DJ-1 by PCR and direct nucleotide sequencing in 90 Chinese patients with EOPD.We also compared the allele and genotype frequencies of the g.168_185del polymorphism between EOPD patients and controls.Results We found no causative DJ-1 mutations in our cohort of Chinese EOPD patients.But we did identified 4 known polymorphic variants,including the g.168_185del in intron 1,g.5027G > A (rs17523802),g.5065T > C (rs226249),and g.5094C > T (rs11121064) within exon 1.Del/Ins frequencies of the g.168_185 del polymorphism were 11.1% (10/90)and 13.3% (14/105) in EOPD group and normal group,respectively.Ins/Ins frequencies were 88.9% (80/90) and 86.7% (91/105),thex2 and P value of genotype frequency were 0.222 and 0.669 between EOPD patients and controls,respectively.The insert frequencies were 94.4% (170/180)and 93.3% (196/210) in EOPD patients and controls,the deletion frequencies were 5.6% (10/180) and 6.7% (14/210),thex2 and P value of allele frequency were 0.207 and 0.679 between EOPD patients and normal,respectively.Furthermore,the P value of genotype and allele frequencies were 0.736 and 0.744 between familial EOPD patients and controls,respectively;P values of genotype and allele frequencies were 0.847 and 0.852 between sporadic EOPD patients and control group,respectively.There was no statistical difference between groups.Conclusion Mutations in DJ-1 are uncommon in Chinese EOPD patients,and no association is observed between the DJ-1 intron 1 g.168_185del polymorphism and risk of PD.
6.Mucoraceae infection lead to the pseudoaneurysms following renal transplantation: a report of 2 recipients with the same donor after cardiac death
Shuzhai MIAO ; Wenli CAI ; Qingshan QU ; Xin JIANG ; Ming LI
Chinese Journal of Organ Transplantation 2014;35(2):70-72
Objective To analyze the diagnosis and treatment of iliac pseudoaneurysms following renal transplantation.Method The data of two patients with pseudoaneurysm who underwent kidney transplantation were retrospective analysied.Result One case with pseudoaneurysm received transplant nephrectomy,and pathological examination diagnosed mucoraceae infection; the other patient received endovascular treatment and amphotericin B therapy,endly died of hemorrhagic shock.Conclusion The development of pseudoaneurysms at the kidney transplantation recipients with the same donor results in high rates of mucormycosis.They should take anti-fungus therapy and operation as early as possible.
7.Application of HRRT in delayed graft function after kidney transplantation
Wenli CAI ; Shuzhai MIAO ; Qingshan QU ; Peiyu WANG
Chinese Journal of Organ Transplantation 2011;32(10):604-606
Objective To observe the effect of hybrid renal replacement therapy (sustained lowefficiency hemodiafiltration) in recipients with delayed graft function (DGF) after kidney transplantation.Methods In 33 kidney transplant patients with DGF,there were 15 cases subject to sustained low-efficiency hemodiafiltration (SLEDF group),18 cases subject to hemodialysis (HD group).The renal function was tested,and the expression levels of complements C3,C4,and CRP,IL-1β,IL-6,TNF-α were detected before and after therapy.Results In SLEDF group,the renal function recovered in (29 ± 13) days after therapy,and in (47 ± 21) days in HD group.After therapy,the BUN and Scr in both two groups were lower than before (P<0.01).After therapy,the levels of IL-1β,IL-6 and TNF-α were also lower than before in two groups,and the levels were lower in SLEDF group than in HD group (P<0.05).The levels of complements C3,C4,and CRP in two groups were decreased after therapy,but there was no statistically significant difference (P>0.05).Conclusion SLEDF can decrease the level of SCr,BUN and some cytokines in recipients effectively,and It's helpful to recovery of the renal function.SLEDF can be used by DGF recipients in transit time.
8.Identification and molecular mechanism study of a case with B(A)02 allele
Li QIU ; Nan YAO ; Wen MIAO ; Wei ZOU ; Xiaohong CAI
Tianjin Medical Journal 2016;44(5):625-628
Objective To identify and investigate B(A)02 allele in a patient. Methods Serological tests were performed with standard serological methods in a patient with B(A)02 allele. DNA sequences of all seven exons and exon-intron boundaries of ABO gene were analyzed by polymerase chain reaction (PCR), direct DNA sequencing and sequencing after gene cloning. In order to analyze the allele, PyMOL software was used to establish 3D model of Glycosyltransferases B (GTB). Results The serological results showed the characteristics of B(A) phenotype. DNA analysis revealed that ABO gene of the individual was heterozygous of B(A)02/O01 allele. 700C>G mutation was identified in B101 allele, which resulted in the amino acid substitution P234A in GTB. Through the analysis of the 3D structure of GTB, it was speculated that the P234A replacement affected the intermolecular forces of the 234 amino acid and Met-266, thus changed the conformation of the donor-binding pocket of GTB,that made GTB capable of recognizing and tranferring the GalNac to the H antigen, which can lead to the formation of the weak A antigen on membrane of red blood cells. Conclusion The P234A replacement can affect the spatial conformation of the specific recognition region conformed by Met-266 and Ala-268 residues, which leads to the antigenicity change of the ABO blood group.
9.Outbreaks of norovirus infections in Zhejiang province during 2004-2014
Shuwen QIN ; Chengliang CHAI ; Jian CAI ; Ziping MIAO ; Shelan LIU
Chinese Journal of Clinical Infectious Diseases 2014;7(4):324-327
Objective To review the epidemiologic features of norovirus infection outbreaks in Zhejiang province during 2004-2014.Methods Epidemiological data of norovirus infection outbreaks in Zhejiang province from January 2004 to February 2014 were collected from the Emergency Public Reporting System in Zhejiang Provincial CDC.The distribution of time,area,population,route of transmission and genotype of norovirus were analyzed.Results There were 16 outbreaks of norovirus infections with 2 037 cases during 2004-2014 in Zhejiang province.Eleven outbreaks occurred during February and April,and 13 outbreaks occurred in schools.The outbreaks in schools mainly involved students aged 15-20 years,while other outbreaks took place mainly in the young and middle-aged population.The sex ratio of male to female was 1.05 ∶ 1.Among 16 outbreaks,10 were induced by norovirus G Ⅱ infections,3 were induced by norovirus G Ⅰ infections and 3 were induced by norovirus G Ⅰ and G Ⅱ infections.Fourteen outbreaks were caused by water pollution.Conclusion Outbreak of norovirus infection usually occurs in schools during winter and spring in Zhejiang province,and the epidemic of disease is mainly associated with polluted water.
10.Establishment of a rat model of atherosclerosis with syndrome of intermingled phlegm and blood stasis and intervention experiment with a Chinese medicine prescription Danlou tablet
Jie CHEN ; Jing MIAO ; Xinbin ZHOU ; Hongwen CAI ; Wei MAO
Chinese Journal of Comparative Medicine 2015;(9):22-27
ObjectiveToestablisharatmodelofatherosclerosiscombinedwithsyndromeofintermingledphlegm and blood stasis , to observe the inflammatory reactions and the treatment effect of prescription ( Danlou tablet ) on the rat model.Methods Thirty-two healthy male SD rats were randomly and equally divided into four groups , namely, normal control group, model control group, atorvastatin group (ATV group), and Danlou group (DLP group).The normal control group was given basic forage , while other three groups were given high fat forage plus intraperitoneal injection of vitamin D 3 and balloon injury of the left common carotid artery to build rat atherosclerosis model combined with syndrome of intermingled phlegm and blood stasis , and then received intragastric administration of saline , atorvastatin suspension and Danlou tablets suspension for 4 weeks, respectively.After intervention, both serum lipid and hs-CRP, IL-6, TNF-α, and LP-PLA2 levels were determined by ELISA , pathological alterations in the thoracic aorta was analyzed using HE staining , the expressions of IL-6, TNF-αand LP-PLA2 mRNA in the thoracic aorta tissue were assessed by real-time fluorescent quantitativePCRtechnology.Results ①Comparedwiththenormalcontrolgroup,thereweresignificantincreasesin serum TC, LDL-C, hs-CRP, IL-6, TNF-α, and LP-PLA2 levels (P<0.05 for all) and decrease of serum HDL-C levels in the model group (P<0.05).The expressions of IL-6, TNF-α, and LP-PLA2 mRNA in the rat aorta were significantly increased ( P<0.05 for all ) .In the model control group , HE staining showed altered arrangement of aortic endothelial cells, irregular intimal thickening , broadened subendothelial space , and accumulation of foam cells and lipid deposition , forming typical atherosclerotic plaques .② Compared with the model control group , the ATV and DLP groups showed significantly decreased serum TC , LDL-C, hs-CRP, IL-6, TNF-α, and LP-PLA2 levels ( P<0.05 for all) as well as the expressions of IL-6, TNF-α, and LP-PLA2 mRNA in the thoracic aorta (P<0.05 for all).There were no significant differences between the ATV and DLP groups (P>0.05).There were also reduced aortic intimal hyperplasia , macrophage infiltration and plaque area compared with those of the model group .Conclusions Rat model of atherosclerosis combined with syndrome of intermingled phlegm and blood stasis can be established by high fat diet feeding combined with the intraperitoneal injection of vitamin D 3 and balloon injury of carotid artery .The prescription ( Danlou tablet ) can inhibit the inflammatory reaction and ameliorate atherosclerotic changes in the rat models .