1.Analysis of the results of optical coherence tomography in eyes with repaired idiopathic macular hole after operation
Yimin XU ; Zhizhong MA ; Xin WANG
Chinese Journal of Ocular Fundus Diseases 1999;0(02):-
Objective To investigate the characteristics of optical coherence tomography (OCT) in eyes with repaired idiopathic macular hole (IMH) after operation and the relation with recovery of visual acuity. Methods The characteristics of OCT images of 24 patients (25 eyes) with repaired IMH after vitrectomy,internal limiting membrane(ILM)peeling and auto-serum healing were analyzed retrospectively. In the patients with IMH, the macular hole was found in 9 eyes at stage Ⅱ, 13 eyes at stage Ⅲ, and 3 eyes at stage Ⅳ. Examinations of best-corrected visual acuity, slit-lamp biomicroscopy with fundus contact lens, fundus photography, fundus fluorescein angiography(FFA) and OCT were performed on the patients 3 to 24 months after surgery. Results OCT images of the repaired IMH were categorized into 3 patterns: U-type (5 eyes) with relative normal foveal contour; V-type (7 eyes) with steep foveal contour;W-type (13 eyes) with foveal defect of neurosensory retina, but without warped hem of retinal hole or cystic formation. Postoperative visual acuities were improved in all of the patients and the best ones were in group U-type. Conclusion Characteristics of OCT images of repaired IMH may be related to the postoperative visual acuity.
2.Effects of berberine on the prevention of left ventricular remodeling after acute myocardial infarction
Xiaofeng ZHU ; Zhizhong LIU ; Jing XU
Chinese Journal of Interventional Cardiology 2003;0(06):-
Objective To explore the effects of berberine(BBR)on the prevention of left ventricular remodeling after acute myocardial infarction(AMI)in New Zealand rabbits.Methods AMI were conducted by ligating left coronary artery in female New Zealand rabbits.Five days after the procedure,the 28 survival rabbits were randomized into the controls(n=14)or BBR treatment group [n=14,BBR 8 mg/(kg?d)iv.].Hemodynamic studies were performed 4 weeks after the completion of treatment.Pathology study of the rabbits hearts was carried ont and matrix metalloproteinases(MMPs)2 and 9 were detected by immunohistochemical analysis in the non-infarct myocardium.Results Compared with the control group,left ventricular relative weight(LVRW)and LV end diastolic pressure(LVEDP)were decreased in the treatment group 4 weeks after BBR intervention(1.55?0.12 vs 1.69?0.13,P
3.Association study of DISC1 gene polymorphism with schizophrenia in southern region of Fujian
Zhizhong XU ; Jiaxin ZHANG ; Wenqiang WANG
Chinese Journal of Behavioral Medicine and Brain Science 2017;26(6):549-553
Objective To explore the difference of DISC1 gene polymorphism between schizophrenia patients and normal subjects,as well as the association of gene polymorphism with mRNA expression.methods 40 schizophrenia patients and 40 normal subjects were recruited randomly from southern region of Fujian,China.DISC1 mRNA level was assessed by RT-PCR and the genotype was evaluated by sequencing with the amplified PCR products from peripheral blood DNA.Result srs6675281 locus only found CC type,other types were not found.According to the genotyping Result ,the rs821616 locus has AA,AT and TT three types,but the genotype and allele frequency between the two groups were not significantly different (Genotype:x2=0.923,P=0.63;Allele:A>T,x2=0.656,P=0.418).As far as rs11122319 locus,AA,AG and GG three types were found in this study,there was no significant difference between patients and normal controls (Genotype:x2=3.922,P=0.141;Allele:A>G,x2=0.184,P=0.668).Subjects were divided into AA,AG,GG three types based on rs1417584 locus genotyping,however the genotypes and alleles of this locus between the two groups were significant difference (Genotype:x2=6.631,P=0.042;Allele:A>G,x2=4.592,P=0.032),and the DISC1 mRNA expression that corresponding to the genotype AG in patients and normal subjects was significantly different (t=3.916,P=0.004).Conclusion Based on these findings,rs1417584 locus may be implicated the expression and regulation of DISC1 gene,may be a pathogenic factor of schizophrenia and the genotype AG may be corresponding to a higher risk.
4.The mRNA expression of CC chemokines in peripheral blood mononuclear cells from patients with chronic urticaria
Hui TANG ; Jinhua XU ; Zhizhong ZHENG
Chinese Journal of Dermatology 1994;0(02):-
Objective To investigate the mRNA expression of CC Chemokines, including RANTES (regulated upon activation, normal T cell expressed and secreted), monocyte chemoattracctant protein-1 (MCP-1), monocyte chemoattracctant protein-3 (MCP-3) and macrophage inhibitory protein 1? (MIP-1?), in peripheral blood mononuclear cells (PBMCs) of patients with chronic urticaria, their mutual correlation, and the relationship between the expression level of CC chemokines and the serum level of IgE and eosinophil cationic protein (ECP) in the patients. Methods Reverse transcription-polymerase reaction (RT-PCR) was applied to semiquantitatively analyze the mRNA expression of RANTES, MCP-1, MCP-3 and MIP-1? in PBMCs from 31 patients with chronic urticaria and 22 healthy subjects. Results The mRNA expression of RANTES, MCP-1, MCP-3 and MIP-1?was significantly higher in the patients than those in the normal controls (P 0.05). In the patients, the mRNA expression of RANTES negatively correlated with the serum level of IgE and ECP (P
5.Effects of almitrine and raubasine on rehabilitation of ischemic stroke patient
Shunwei LI ; Yan XU ; Zhizhong MA
Chinese Journal of Neurology 2000;0(05):-
Objective To assess the efficacy of almitrine and raubasine (Duxil) on post stroke rehabilitation Methods A clinical trial was done with a randomized, double blind, placebo controlled method Patients with ischemic stroke were included as having 1 month after the acute onset and receiving randomized treatment of either Duxil or placebo 2 tablets daily for 3 months The patients were assessed by using Barthel Index (BI), neurological functional deficit scores (NFDS), and Hasagawa dementia scales (HDS) each month after giving treatment Results In this study, only 74 cases were observed Of them, 38 patients received Duxil and 36 patients received placebo The baseline characteristics were compared between both groups Duxil was significantly shown more effective than placebo by increasing BI at 1, 2 or 3 months and by reducing NFDS at 1 month after treatment, more Duxil treated patients' NFDS had improved as compared with placebo treated patients In comparing with the pre treatment condition, there appeared a strong tendency of improvement in HDS with Duxil, although this significance was not confirmed by the difference of scores between two groups More Duxil treated patients than placebo controlled patients were reported having adverse events, but the difference was not significant at the 5% level All these events were mild, of short duration and resolved without treatment Conclusion Duxil can accelerate the recovery of nervous function to some degrees after stroke
6.Therapeutic effect of mycophenolate mofetil on severe systemic lupus erythematosus patients
Zhizhong YE ; Xiangguang XU ; Junhan ZHUANG
Chinese Journal of Rheumatology 2001;0(05):-
Objective To evaluate the therapeutic effects and side effects of MMF on severe SLE patients compared with CTX.Method All 106 severe SLE patients were randomly allocated to 2 groups:MMF treatment group (53 patients):1 5 g/d for 3 months,1 0 g/d for following 3 months,and then 0 5~0 75 g/d;IVCTX treatment group:0 75 g/m 2 per month for 6~12 months.Prednisone was used in all patients.Clinical and laboratory parameters including SLE DAI,Hb,platelet,urine protein,albumin,SCr,aCL,ANA and anti dsDNA were observed.Results After 3 month treatment,all clinical and laboratory parameters were significantly improved in MMF group,while only partial parameters were improved in CTX group.Hb and platelet increased and urine protein and anti dsDNA decreased faster in MMF group than in CTX group.At month 6 the clinical and laboratory parameters improved significantly in both groups ( P
7.“AID” implanted in eyes with silicone oil tamponade
Yimin XU ; Zhizhong MA ; Changguan WANG ; Xuefeng FENG ; Xin WANG ;
Journal of Peking University(Health Sciences) 2004;0(02):-
Objective:To summarize the clinical results of the artificial iris diaphragm (AID)implantation for eyes with silicone oil longstanding tamponade.Methods: In this study,the operation indications,results and complications of 11 consecutive cases of artificial iris diaphragm implantation for eyes with silicone oil longstanding tamponade were studied. Results: In all of the 11 primary ocular disorder cases , 7 cases (7/11) were serious ocular trauma, 2(2/11)cases were diabetic retinopathy with traction retinal detachment , 1 case (1/11) was recurrent retinal detachment with complicated PVR, and 1 case (1/11) was Coats disease; The silicone oil was retained completely behind the surface of artificial iris diaphragm in 7(7/11) of all the 11 cases,in which no visual acuity was affected The complications were low intraocular pressure (IOP)and heavy fibrosis on the surface of artificial iris diaphragm. Conclusion: Open type artificial iris diaphragm implantation in eyes with longstanding silicone oil tamponade can effectively prevent the silicone oil from cotacting the cornea causing complication by spontaneously blocking and rescuing anterior chamber fluid circulation.
8.The clinical diagnostic value of SYT-SSX gene detection combined with immunohistochemistry in synovial sarcoma
Qinzhao YUAN ; Yueqin WU ; Gang XU ; Zhizhong LIANG ; Yanfeng XI
Cancer Research and Clinic 2016;28(4):226-230
Objective To analyse the clinicopathological characteristics of synovial sarcoma (SS) from histomorphology,immunohistochemical (IHC) and fluorescence in situ hybridization (FISH),and to investigate the related factors influencing the prognosis of SS patients.Methods 94 cases were collected,including 60 SS cases and 34 in dined to SS cases.The expressions of common antibodies related to the diagnosis of SS Vimentin,CD99,AE1/AE3,EMA,CD34,Calponin,Ki-67 were detected by IHC,and the SYT-SSX fusion gene was detected by FISH.The clinical pathologic factors that affecting the prognosis of patients were analyzed through the statistical method.Results The positive rates of Vimentin,CD99,AE1/AE3,EMA,CD34,Calponin,Ki-67 were 100.00 %,74.47 %,36.17 %,28.72 %,17.02 %,90.43 % and 60.64 % respectively.FISH results showed that 81 patients were tested with SYT gene translocation,including 54 cases who were considered as SS,and 27 cases who were suspected/inclined to SS,and the number of positive cells surpassed 80 %.The gene translocation was not related with the patient' s age,sex,tumor position,histological type,differentiation of the cancer (all P > 0.05).Single factor survival analysis showed that the degree of differentiation,tumor diameter,the recurrence and metastasis had certain influences on patients' survival time (all P < 0.05).Multiple factors regression analysis showed that the degree of differentiation and tumor diameter were the risk factors influencing the prognosis of SS (risk coefficients > 1,P < 0.05).Conclusions IHC combined with FISH SYT-SSX fusion gene detection have the vital significance in the diagnosis of SS.The degree of differentiation and tumor size are the risk factors influencing the prognosis of SS.
9.Alfentanil protects the isolated rat heart against ischemia and reperfusion injury via opioid receptors and NO linked mechanisms
Meng CHEN ; Yinming ZENG ; Shiming DUAN ; Zhizhong SHEN ; Pengcheng XU
Chinese Journal of Clinical Pharmacology and Therapeutics 2000;0(02):-
AIM:?To?investigate?if?alfentanil?protects?the?isolated?rat?heart?against?myocardial?reperfusion?injury?and?if?the?mechanism?of?this?protection?is?mediated?via?opioid?receptors?and?NO-dependent?pathways. METHODS: Langendorff rat hearts were perfused at constant pressure with Kreb-Henseleit(K-H) buffer for 20 min?and?then?were?perfused?with?test?solution:?K-H?buffer?or?K-H?buffer?containing?alfentanil? 50 ?g?L -1,?alfentanil? 100 ?g?L -1, naloxone 200 ?g?L -1, alfentanil 100 ?g?L -1+naloxone 200 ?g?L -1, L-NAME 100 ?mol?L -1 and alfentanil 100 ?g?L -1+L-NAME 100 ?mol?L -1. After 10 min of this, the hearts were subjected to 25 min normothermic( 37 ℃) global ischemia followed by 30 min reperfusion with the same test solution as before. To evaluate myocardial function, LVEDP, LVDP, ?dp/dt max, HR and CF were measured at the 20th, 25 and 30th minute of perfusion and the 1st, 3rd, 5th, 10th, 20th and 30th minute of reperfusion. After experiment, the NOS and ATP content of myocardium were assessed. RESULTS: Before ischemia, alfentanil 100 ?g?L -1 decreased the HR at the 30th minute compared with the 20th minute(P
10.Percentage of primary open angle glaucoma in retinal vein occlusion patients
Ke, XU ; Lingling, WU ; Zhizhong, MA ; Yuling, LIU ; Fang, QIAN
Chinese Journal of Experimental Ophthalmology 2016;34(6):552-557
Background Researches determined that the pathogenesis of retinal vein occlusion (RVO) is associated with primary open angle glaucoma (POAG) in Caucasian population.However,the relationship between RVO and POAG in Asian population is unclear.Objective This study was to survey the percentage of POAG in RVO patients in China.Methods A prospective cross-sectional observational study based on hospital was performed.Three hundred and seventy five patients with newly diagnosed RVO by fluorescein fundus angiography (FFA) were consecutively enrolled in Peking University Third Hospital from October 2011 to May 2013,and gonioscopy was carried out in all the patients.Glaucoma was diagnosed according to the criteria of the International Society of Geographical and Epidemiological Ophthalmology (ISGEO).RVO was classified into central retinal vein occlusion (CRVO),hemicentral retinal vein occlusion (HRVO) and branch retinal vein occlusion (BRVO) based on fundus photograph and FFA,or classified into arteriovenous crossing RVO (AV-RVO),optic cup RVO (OC-RVO),optic nerve RVO without optical nerve head swelling (NONHS-RVO) and RVO with optical nerve head swelling (ONHS-RVO) based on the sites of venous occlusion.The percentages of POAG in different types of RVO were calculated.This study was approved by Ethic Committee of Peking University Third Hospital,and written informed consent was obtained from each patient before entering study cohort.Results Three hundred and seventeen RVO patients finished screening of glaucoma,with the response rate 84.5%.The percentage of POAG is 8.2% in RVO patients,including 7.1% in the CRVO patients,23.5% in HRVO patients and 6.2% in BRVO patients.The percentage of POAG was significantly higher in OC-RVO patients (27.9%) and NONHS-RVO patients (13.2%) than that in AV-RVO patients (4.7%) and ONHS-RVO patients (1.3%) (all at P<0.05).Conclusions The overall percentage of POAG in RVO patients in China is 3-4 times higher than general population.Higher percentage of POAG is found in OC-RVO patients and NONHS-RVO patients,suggesting that pathogenesis of RVO is probably associated with the glaucomatous anatomic changes of optical nerve head.