1.Effects of high Annexin A3 expression on apoptosis and proliferation of gastric cancer MGC-803 cells
Dayong ZHANG ; Liandong WANG ; Chao ZENG
Chinese Journal of Clinical and Experimental Pathology 2015;(6):607-610
Purpose To eva1uate the effects of Annexin A3 on pro1iferation and apoptosis of gastric cancer ce11s. Methods The re-combinant p1asmid pYr-ads-4-Annexin A3 was constructed and ana1yzed by restriction ana1ysis and sequencing and was transfected into MGC803 ce11s. The stab1e transfectants were obtained after screening with G418. Western b1ot ana1ysis was used to examine the expres-sion of Annexin A3 before and after transfection. CCK8 assay,c1one assay and f1ow cytometry were used to study the effects of Annexin A3 on pro1iferation and apoptosis of MGC803 ce11s. Results The recombinant p1asmid pYr-ads-4-Annexin A3 was successfu11y con-structed. Western b1otting resu1ts indicated that the Annexin A3 expression was significant1y higher in ce11s transfected with pYr-ads-4-Annexin A3 compared with ce11s transfected with empty vectors and un-transfected ce11s( P<0. 05 ). CCK8 assay resu1ts showed the number of ce11s transfected with pYr-ads-4-Annexin A3 was significant1y higher than those transfected with empty vectors and un-trans-fected ce11s(P<0. 05). Moreover,the number of c1one in ce11s transfected with pYr-ads-4-Annexin A3 was significant1y higher than the other two groups(P<0. 05). Important1y,high Annexin A3 expression inhibited to apoptosis of MGC803 ce11s(P<0. 05). Con-clusion Annexin A3 expression p1ay important ro1es in tumorigenesis of gastric cancer. Annexin A3 cou1d promote the pro1iferation and inhibited apoptosis of gastric cancer ce11s and it might be a potentia1 target for gastric cancer treatment.
2.Analysis of resection of neurospongioma under neuronavigator and brain shift
Dayong QI ; Jianyi PU ; Hongyi ZHANG
Clinical Medicine of China 2008;24(9):923-925
Objective To investigate the application of neuronavigator in the resection of neurospongioma and management of brain shift.Methods Operation protocol was made according to three dimensional structure of neumspongioma under neuronavigation.The focus was sought by using viewing wand for the resection.Results All focus were removed under neuronavigator.The size and operation time was associated with brain shift along the operation pathway.Operative approach and depth of lesion was related to brain shift.Loss of large volume of cerebrospinal fluid exerted influences on the shift of codex along the operative pathway and plane side.Conclusion Neuronavigator can effectively protect nerve function when used in the resection of neurospongioma.As for brain shift,strict navigation and operative procedure would be useful for reducing loss of cerebrospinal fluid,removed volume of brain tissue and avoiding early release of tumor hydatid flui.
3.Comparison between 99 Tcm-MNLS and 99 Tcm-HL91 in assessing the hypoxia of the tumor after radiotherapy
Wenyan ZHANG ; Dayong WU ; Qiang WEI
Chongqing Medicine 2015;(19):2618-2620
Objective To compare the imaging of 99 Tcm‐MNLS and 99 Tcm‐HL91 for the hypoxic assessment in the tumor af‐ter radiotherapy .Methods Twenty four Kunming mice models bearing H22 liver cancer xenografts which tumor were treated ra‐diotherapy for 25 Gy were divided into 99 Tcm‐MNLS instant group ,99 Tcm‐MNLS 48 h group ,99 Tcm‐HL91 instant group ,99 Tcm‐HL91 48 h group and injected the matching 99 Tcm‐MNLS or 99 Tcm‐HL91 to image .The technique of ROI was adopted to calculated the T/NT on the image .Immunohistochemical stain methods were used to evaluate the level of HIF‐1αabout tumors after imaging . Two sample t test was performed .Results The T/NT and the HIF‐1α level about instant (3 .36 ± 0 .20 ,88 .55% ± 0 .83% )were higher than and 48 h (2 .25 ± 0 .43 ,22 .75% ± 3 .35% )in 99 Tcm‐MNLS group(P<0 .05) ,then in 99 Tcm‐HL91 group the T/NT and the HIF‐1αlevel about instant (3 .23 ± 0 .90 ,90 .55% ± 2 .61% )were higher than 48 h (2 .79 ± 0 .85 ,25 .88% ± 3 .76% )(P<0 .05) .The difference of T/NT ,HIF‐1αlevel about instant in 99 Tcm‐MNLS group and 99 Tcm‐HL91 group were no significant(P>0 .05)and the same to the T/NT ,HIF‐1αlevel about 48h in 99 Tcm‐MNLS group and 99 Tcm‐HL91 group(P>0 .05) .Conclusion 99 Tcm‐MNLS hypoxia imaging could provide the change of hypoxia comparable to 99 Tcm‐HL91 ,and the two radiopharmaceutical could both show high accuracy rate in evaluating the hypoxia in the tumor .
4.Effects of Reduqing Oral Liquid on Body Temperature and Plasma Nitric Oxide Level in Rabbits with Endotoxic Induced Fever
Dayong ZHOU ; Zongming ZHANG ; Ninglin HAN
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(07):-
Objective To investigate the effects of Reduqing Oral Liquid (RDQ) on endotoxic fever and plasma nitric oxide (NO) levels of rabbits. Methods Sixty rabbits were randomly divided into 6 group:Acetylsalicy Acid (APC) group, RDQ high dosage group, RDQ low dosage group, RDQ middle dosage group, Shuanghuanglian (SHL) group, model group, ten rabbits of each group. Body temperature and plasma NO of each group were observed. Results In RDQ high dosage group and middle dosage group, plasma NO and fever were reduced significantly (P
5.Morphologic colonic adaptation following total small bowel resection in the rat
Wenchuan WU ; Dayong JIN ; Yanyan ZHANG ;
Parenteral & Enteral Nutrition 1997;0(04):-
Objectives:To investigate the morphologic changes of the colon in the rats after a total small bowel resection. Methods:Ten male Sprague Dawley(350~370 g) rats in the experimental group were undergone resection of total small bowel,and ten normal rats were randomly chosen as the control group.After supported by enteral nutrition for 3 months,rats were sacrificed and the colon harvested for morphologic parameters study. Results:The length,diameter,wet weight,crypt depth,mucosal thickness and kerckring height of the colon in the experimental group were significantly higher than those in the control group( P
6.Effects of Nitroglycerin and Lyophilized Recombinant Human BNP on Treatment of the Peripartum Cardiomyopathy Heart Failure
Wei LU ; Yongchun WANG ; Dayong ZHANG
Journal of Medical Research 2006;0(07):-
Objective To compare the effects between Milrinone and Lrh-BNP for treating the peripartum cardiomyopathy heart failure.Methods After treated by routine measure,39 serious PPCM patients were randomized into two groups,with 20 to Milrinone group for the advanced therapy between 5 to 7 days,and 19 to Lrh-BNP group therapy 24 hours. Results The total efficient rate in Lrh-BNP group(95%) was more higher than that in Milrinone group(73.6%).The index of heart function such as LVEF,FS,E/A,SV,CO,CI,24 hours urine quantity,dyspnea could improve in both groups after the therapy(P
7.Effects of Spasticity Therapeutic Apparatus on Talipes Varus after Stroke
Dayong YE ; Ying LIU ; Xin LEI ; Hualian ZHANG ; Minbo ZHANG
Chinese Journal of Rehabilitation Theory and Practice 2010;16(5):459-460
ObjectiveTo observe the effect of Spasticity Therapeutic Apparatus on the talipes varus in ptients with stroke. Methods60 patients were divided into treatment group and control group. Patients in the control group accepted routine therapy, while the treatment group were treated with the Spasticity Therapeutic Apparatus in addition. ResultsThe Clinic Spasticity Index (CSI) of ankle significantly improved after treatment (P<0.05) in both groups, and more in the treatment group than in the control group (P<0.05). ConclusionThe Spasticity Therapeutic Apparatus can facilitate the recovery of talipes varus of the patients with stroke.
8.Research progress of the biological characteristics of IkappaB kinase and its inhibitors.
Jianyue XUE ; Bin ZHOU ; Dayong ZHANG ; Xiaoming WU
Acta Pharmaceutica Sinica 2011;46(3):253-60
The NF-kappaB pathway regulates the expression of over 150 target genes, e.g., cytokines, chemokines, leukocyte adhesion molecules and inducible effector enzymes. Consequently, it plays a crucial role in innate and adaptive immune responses, inflammatory response, stress responses, apoptosis and so on. IkappaB kinase (IKK) is the key of this pathway, and it owns a special structure which consists of catalytic subunit and regulatory subunit. Naturally, the activation of IKK needs the interaction of the two subunits and phosphorylation by its upstream kinases. Actually, there are two methods of activation of the NF-kappaB pathway, and both of the methods need the IKK complex. Given to the crucial role of IKK, researchers have isolated and synthesized amounts of IKK inhibitors, and these provide a great convenience to develop novel anti-inflammatory and anti-tumor drugs.
9.Application of Intelligentized Clinical Gait Evaluation System for Patients with Hemiplegic Gait
Xin LEI ; Dayong YE ; Bo YANG ; Hualian ZHANG ; Ying LIU
Chinese Journal of Rehabilitation Theory and Practice 2012;18(1):77-78
Objective To observe the effect of the Intelligent Clinical Gait Evaluation System on hemiplegic gait and walking ability of the stroke patients. Methods 60 patients were divided into training group (n=30) and control group (n=30). The control group received routine rehabilitation training, while the training group received rehabilitation under the Intelligent Clinical Gait Evaluation System. They were evaluated with the Intelligent Clinical Gait Evaluation System before and 6 weeks after treatment. Results The walking ability improved in both groups after training (P<0.05), and improved more in the training group than in the control group (P<0.05). Conclusion Intelligent Clinical Gait Evaluation System can be used to guide the rehabilitation of hemiplegic gait.
10.A study on surface plasmon resonance-based gene chip system for rapid pathogen detection
Yufeng TIAN ; Dayong GU ; Huawei YU ; Bing HANG ; Yaou ZHANG
Chinese Journal of Laboratory Medicine 2008;31(9):1051-1054
Objective To study application of surface plasmon resonance(SIR)system in detection of clinical pathogen with a gene chip.Methods 27 clinical samples were detected by SPR-based gene chip system.These samples were composed by 8 positive blood samples,3 positive pyoid samples,9 positive leucorrhea samples and positive reproductive tract pyoid samples,1 positive biopsy sample and 6 negative biopsy samples.Specific primers and probes for target pathogens were designed by bioinformatics methods and validated by PCR and enzyme-labelled chemiluminescence,respectively.SPR-based gene chip was prepared and utilized to detect clinical samples by SPR system.Results The primers and probes showed good specificity and accuracy,which can be applied to perform PCR and application of the gene chip.Compared with the clinical analysis,gene chip analysis of 26 clinical samples showed the consistent results.Conclusions SPR detection system proved to be accurate and reliable.The chip will have a promising prospect in application.