1.Analysis of the Polymorphism Distribution of Clopidogrel Metabolism Related Gene CYP2C19 in Patients with Coronary Artery Disease in Wuhan
Ruiling HAN ; Yan LI ; Wei WU
Journal of Modern Laboratory Medicine 2015;(3):21-23
Objective To screen for clopidogrel metabolism related gene CYP2C19 in patients with coronary artery disease in Wuhan.Methods 316 patients,from Jan to Dec 2014,after cardiology percutaneous coronary interventional therapy (PCI) for the treatment of coronary artery disease were selected as research object.Clopidogrel metabolism related CYP2C19 geno-types (* 1,* 2,* 3)were detected by the gene chip,and for different types of metabolism of patients according to CYP2C19 gene type:strong metabolize type (*1/*1),intermediate metabolizer types (*1/*2,*1/*3),poor metaboli-zer types (*2/*2,*3/*3,*2/*3).Results According to the CYP2C19 gene polymorphism of metabolic function type, strong metabolic type carrying CYP2C19*1 (*1/*1)accounted was 43.4%,intermediate metabolizers carrying CYP2C19*2 or *3 (* 1/* 2 and * 1/* 3)and poor metabolizers (* 2/* 2,* 2/* 3 and * 3/* 3)accounted was 42.4% and 14.2%,respectively.Different gender had no statistical significance in CYP2C19 genotype differences.Conclusion Clopi-dogrel metabolism functional of CYP2C19 gene in patients with interventional coronary heart disease in Wuhan area had more deletion gene.
2.Recent Progress on Rhamnolipid Biosurfactant
Hong WU ; Wei WANG ; Shuang-Yan HAN ;
Microbiology 1992;0(01):-
Rhamnolipid,an important biosurfactant,is reviewed with respect to chemical strocture,properties,physiological role and their fermentation production,especially focusing on the production with inexpensive raw materials,such as vegetable oils and residues from agro- industrial wastes.This can not only reduce the production costs,but also contribute to the reduction of environmental impact generated by the discard of residues,and the treatment costs.
3.Quantitative analysis of endothelial progenitor cells in the peripheral blood of patients with proliferative diabetic retinopathy
Wei ZHANG ; Qi HAN ; Song CHEN ; Hua YAN
Chinese Journal of Ocular Fundus Diseases 2011;27(3):218-221
Objective To investigate the amounts of endothelial progenitor cells(EPCs)in peripheral blood of patients with proliferative diabetic retinopathy(PDR).Methods Forty patients with PDR(PDR group),thirty patmnts with type 2 diabetes mellitus(DM)without DR(DM group),and twenty agematched normal subjects(control group)were enrolled in this study.Blood samples were treated bv repeated centrifugation and stained with monoclonal antibodies.At least 2 × 105 cells were analyzed bv flow cytometry.EPCs were identified by CD34 and CD133 antibody.The correlation between EPCs numbers and DR duration,glycosylated hemoglobin,serum lipids was analyzed.Results The number of EPCs in PDR,DM and control group were(49±12)、(35±11)、(90±25)cells/ml respectively,the difference was statistically significant(F=56.260,P=0.000).There was a positive correlation between EPCs numbers and DR duration(r=0.564,P<0.05).However there was no correlation between EPCs numbers and glycosylated hemoglobin(r=-0.170,P>0.05)or triglyceride levels(r=0.261,P>0.05).Conclusions The number of EPCs in peripheral blood of PDR patients was decreased. EPCs might play an important role in the pathogenesis of PDR.
4.Analysis of risk factors for local tumor progression after radiofrequency ablation of hepatocellular carcinoma
Hao HAN ; Minhua CHEN ; Wei YANG ; Ying FU ; Kun YAN
Chinese Journal of Ultrasonography 2012;21(2):128-132
ObjectiveTo evaluate prognostic factors affecting local tumor progression after radiofrequency ablation (RFA) of hepatocellular carcinoma (HCC).MethodsA total of 246 HCC patients (343 lesions) underwent RFA treatment in our department and were enrolled into this study.The average tumor size was 3.7 cm ( range 0.9 ~ 3.7 cm).Regular follow-up with enhanced CT was performed to evalutate the treatment results.Kaplan-Meier model and log-rank test were used in univariate analysis and COX regression model was used in multivariate analysis to identify risk factors for local tumor progression.ResultsThe local tumor progression rate was 11.4% (39/343 lesions),and the average time from initial RFA to local tumor progression was 12.0 months.Univariate analysis indicated tumor size ( P <0.001 ),close to intrahepatic vessels ( P <0.001),tumor boundary ( P =0.020),pathological grade( P =0.010) and CEUS before RFA ( P =0.001) as risk factors for local progression.The following factors were identified as independent prognostic factors for local tumor progression by multivariate model:tumor size (P < 0.001),isolated or close to intrahepatic vessels( P <0.001) and CEUS before RFA(P =0.018).ConclusionsTumor size,CEUS before RFA and close to intrahepatic vessels are the most important factors for local progression after RFA.Being awaring of possible risk factors for local tumor progression may increase the treatment efficacy and help to promote the use of RFA technique.
5.Early operation treatment of filter channel obstruction after trabeculectomy of glaucoma
Wei JIANG ; Fei HAN ; Yan WU ; Min QIU
Journal of Regional Anatomy and Operative Surgery 2014;(2):193-194
Objective To probe into the treatment method of filter channel obstruction after trabeculectomy. Methods Filter channel obstruction occurred in 25 eyes within one month after trabeculectomy,and they were retrospectively analyzed. According to different parts of obstruction,they were divided into three types namely inner obstruction, middle obstruction and outer obstruction. Patients with inner ob-struction were given miosis, separation of the anterior synechia, and expansion of peripheral iris incision when necessary. Patienrts with mid-dle obstruction were given reconstruction of the trabecular incision. Patienrts with outer obstruction were given conjunctiva or sclera flap dis-section within 1 month afer trabeculectomy. Results Postoperative IOP ( intraocular pressure) decreased significantly compared with preop-erative IOP. The IOP stabilized at 13~21 mmHg in the fallowing 6~12 months after operation. Conclusion Taking appropriate measures could restore the filtration function within one month after trabeculectomy when the incision adhesion was not very close.
6.Development of the Structures and Characteristics of Microcapsules
Wei-Yan HAN ; You-Xi ZHAO ; Ping GONG ;
China Biotechnology 2006;0(01):-
Microcapsule technology recently has been applicated and developed in pharmaceutical,chemical,food and so on.The achievments have been obtained on the novel technics of microcapsulation,analytical methods of microcapsule characteristics,and methods of characterization for the appearance and porous structures of microcapsules.The novel developments on the structure and property of microcapsules were reviewed.
7.Comparison of two remedy for treatment of simple bone cyst in adult
Gang HAN ; Wenzhi BI ; Yan WANG ; Jinpeng JIA ; Wei WANG
Chinese Journal of Postgraduates of Medicine 2010;33(36):12-14
Objective To approach the effective treatment for simple bone cyst in adult. Methods Forty-eight cases were divided into two groups by visiting order, 20 cases (steroid group) were treated by prednisolone acetate and 28 cases (open resection and allograft group) were treated by open resection and allograft. The curative effect were contrasted between two groups. Results The follow-up time was 5-46(26.58 ± 10.81) months. Aecording to the Chigira's healing criteria for simple bone cyst, grade Ⅰ , Ⅱ , Ⅲ,V were 1, 2, 10 and 7 cases respectively in steroid group, contrasting to 0, 3, 5 and 20 cases respectively in open resection and allograft group. The recovery rate was 85.0%(17/20) in steroid group and 89.3%(25/28) in open resection and allograft group, which was no statistically significant difference between two groups (P>0.05). Conclusions Although the two remedies are no obvious difference in curative effect,simple bone cyst at lower extremity of weight-bearing with obvious osteolysis in adult is recommended to open resection and allograft, otherwise or at upper extremity to steroid injection.
8.Recent Advances in Mitochondrial Proteomics
Jingyi XU ; Chaoxiang CHEN ; Jinyan HAN ; Wei HANG ; Xiaomei YAN
Chinese Journal of Analytical Chemistry 2015;(9):1257-1264
Mitochondria play a central role in the regulation of cellular energy metabolism, bio-synthesis and cell death. Dysfunction of mitochondria can lead to many diseases. Mitochondrial proteomics provides important theoretical foundation for a systematic understanding of the biological functions of mitochondria, studying the mechanisms of mitochondria-related diseases, and promoting the research and development of mitochondria-targeting drugs. The methodologies, recent technology development, and characteristics and applications of mitochondrial proteomics were reviewed and the challenges and prospects were also discussed.
9.The protective effects of glutathione on renal oxidative damage induced by microcystin-LR on mice
Zhixia HAN ; Meiyan HE ; Yan CUI ; Wei XIONG ; Qingbi ZHANG
Chongqing Medicine 2016;(3):320-322
Objective To study the protection of glutathione (GSH) on renal oxidative damage to mice which caused by mi‐crocystin‐LR(MC‐LR) .Methods Forty healthy KM mice were divided into five groups by randomly sampling ,which were saline control group ,GSH control group ,MC‐LR group ,low dose GSH +MC‐LR group and high dose GSH +MC‐LR group ,and the ex‐periment was lasting 15 days by intraperitoneal injection .Then we took out the kidney for pathological observation and detected the activity of CAT ,SOD ,GSH‐Px and the content of GSH ,MDA .Results Compared with control group ,the MC‐LR increased the content of MDA[(2 .31 ± 0 .22)nmol/mg prot ,P=0 .000] and decreased the content of GSH[(0 .68 ± 0 .02)mg/g prot] .The activi‐ty of CAT[(320 .54 ± 38 .99)nmol/mg prot] ,SOD[(180 .93 ± 15 .30)U/mg prot] ,GSH‐Px[(295 .11 ± 42 .40)U/mg prot](P<0 .05) .However ,after GSH was given ,compared with MC‐LR group ,MDA content[(1 .94 ± 0 .12)nmol/mg prot]of high dose GSH+MC‐LR group significantly decreased (P<0 .05) ,GSH content[(1 .01 ± 0 .08)mg/g prot ,(1 .08 ± 0 .16)mg/g prot]and CAT activity[(383 .46 ± 21 .98)nmol/mg prot ,(428 .50 ± 28 .61)nmol/mg prot] of both GSH groups significantly increased (P<0 .05) ,the activity of SOD[(222 .01 ± 11 .51)U/mg prot] and GSH‐Px[(358 .37 ± 20 .29)U/mg prot] of high dose GSH +MC‐LR group significantly increased (P<0 .05) .Conclusion MC‐LR may cause renal oxidative damage through promoting the lipid perox‐idation on renal cells .The GSH may reach a certain protective effect on kidney by reducing the lipid peroxidation ,improving the an‐tioxidant activity ,and removing oxygen free radicals .
10.Acute blood glucose fluctuation affects GSH-Px, IL-6, and NF-κB in aorta
Wei ZHANG ; Sheng ZHAO ; Yan LI ; Pin HAN
Journal of Chinese Physician 2015;17(1):71-73,77
Objective To investigate the effect of acute blood glucose on the level of glutathione peroxidase (GSH-Px),interleukin-6 (IL-6),and the expression of nuclear factor-κB (NF-κB).Methods The Wistar rats were infused intermittently or consistently with 50% glucose solution.The level of GSH-Px was investigated with colorimetry.The level of IL-6 was measured with enzyme-linked immunosorbent assay (ELISA).The expression of NF-κB was investigated with immunohistochemisty.Results The level of GSH-Px in aorta homogenate in the acute blood glucose fluctuation group [(6.26 ± 0.38) nmol/mgprot] was evidently lower than that of consistently high blood glucose group [(8.98 ± 0.56) nmol/mgprot] and the control group [(10.02 ±1.10)nmol/mgprot] (P <0.05).The level of IL-6 [(20.56 ±3.78)pg/ ml] and the expression of NF-κB in the aorta in the acute blood glucose fluctuation group [(16.35 ±2.45) pg/ml] were evidently higher than the other two groups (P < 0.05).Conclusions Acute glucose fluctuations induced the enhancing of oxidative stress and expression of inflammatory cytokines in the aorta,which leads to start NF-κB signaling pathway.