1.Persistent ST-segment elevation after percutanous coronary intervention reduce the late phase left ventricular function in acute anterior wall myocardial infarction
Likun MA ; Hua YU ; Xiangyang HUANG
Journal of Interventional Radiology 2004;0(S2):-
Objective To investigate the effect of persistent ST-segment elevation after successful direct percutanous coronary intervention (PCI) on the late phase of left ventricular (LV) systolic function in acute anterior wall myocardial infarction.Methods Serial electrocardiograms were record before PCI and 1 hour after reperfusion in 72 patients with acute anterior wall myocardial infarction. The reduction of ST-segment elevation after successful PCI more than 50% was defined as ST-segment resolution (ST reduction group). Persistent ST-segment elevation was defined as ≥50% of peak ST elevation (ST elevation group). Echocardiography was performed on 2 to 3 weeks (early phase) and 5 to 6 months(late phase)after PCI to evaluate the LV function and ventricular wall motion abnormality (VWMA). Results Fifty-three patients (74%) had early ST segment elevation resolution and 19 patients (26%) did not. The LV function and VWMA were similar in two groups during early phase. But during the late phase, ST elevation group patients had lower LVEF and higher LVEDVI, LVESVI, VWMA index compared with ST reduction group (P
2.Apoptosis or necrosis, should which be expected for tumor cells?.
Ke-Fu WU ; Xiao-Tong MA ; Yu-Hua SONG
Journal of Experimental Hematology 2005;13(6):921-923
Evidence has indicated that low doses of anti-tumor regimens can induce cell apoptosis in vitro, although different regimens induce apoptosis by different mechanism and pathway. In recent years, new tumor treatment strategy has been mainly focused on inducing tumor cell apoptosis. The present review discusses the advantages and disadvantages of inducing tumor cell apoptosis. The benefit of inducing apoptosis is not to cause inflammatory reaction, but as its disadvantage, it inhibits immune responses, and the phagocytosis of apopotic bodies may result in horizontal transfer of genes (including oncogenes and other oncogenic materials), which can be one of the causes of tumor relapse. This paper proposes that the tumor treatment strategy should be turn into promoting tumor cell necrosis and inducing anti-tumor immune responses.
Antineoplastic Agents
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therapeutic use
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Apoptosis
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drug effects
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Humans
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Necrosis
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chemically induced
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Neoplasms
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drug therapy
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immunology
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pathology
3.Studies on sexual organs and embryological development morphology of Pterocypsela formosana.
Long HUA ; Xue-ni MA ; Heng-yu HUANG
China Journal of Chinese Materia Medica 2015;40(2):198-203
In this study, the embryological characters of Pterocypsela formosana (Asteraceae) were investigated with the traditional paraffin section methods. The anther has 4 sporangiates, the anther wall development follows the dicotyledonous type and comprises of an epidermis, endothelium, a middle layer and a single-layered tapetum, the tapetum belongs to glandular type. Meiosis of the microspore mother cells is of the simultaneous type, for the formation of mostly tetrahedral tetrad, the mature pollen grains are 2 celled. The ovary is bicarpellate, unilocular, one ovule and basal placenta, the ovule is unitegmic, tenuinucellate, inverted campylotropous and with developed endothelium, archesporial cell of megaspore differentiates immediately below the nucellar epidermis and functions as megasporocyte after development and belongs to tenuinucellate ovule type. The megasporocyte undergoes meitotic to form a liner tetrad, only one chalazal megaspore becomes the functional megaspore which forms female gametophyte including 7-celled and 8-nucleated after three successive mitosis, the female gametophyte is of the Polygonum type. Two polar nuclei melt into a secondary nuclei before fertilization, the chalazal antipodal cells are ephemeral and degenerate shortly after forming. Fertilization is porogamous and belongs to premitotic type of syngamy. The division of the primary endosperm nucleus is earlier than the zygote, the endosperm is of the nuclear type with the presence of haustoria, and the embryogeny belongs to asterad type chicory variant. The developed suspensor on early stage has important significance to the embryo development.
Asteraceae
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embryology
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Meiosis
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Reproduction
4.AMPLIFICATION, CLONING AND PROKARYOTIC EXPRESSION OF GENE FOR MAJOR SURFACE ANTIGEN OF TOXOPLASMA GONDII
Dongsheng YOU ; Jilong SHEN ; Hua MA ; Keshen DAI ; Long YU
Chinese Journal of Zoonoses 2000;(2):9-12
Aim To amplify P30 gene and express P30 fusion with GST Methods P30 gene was smplified from T. gondii chromosomal DNA and ligated to pGEM-T and pGEX-4T-1. Screening-positive recombinants were induced for expression, which was subsequently detected by WB Results P30 gene was amplified and GST-fusion was confirmed by rabbit antiT. gondii serum. Conclusions The construction of pGEM-T-P30 and pGEX-4T-1-P30, together with the recombinant protein would lay a base for further investigation of P30 at a molecule-level and application to diagnosis and vaccination
5.Protective effect and the possible mechanism of Nano-Se on myocardium of experimental diabetes mice
Hongwu CHEN ; Likun MA ; Hua YU ; Kefu FENG
Chinese Journal of Pathophysiology 1989;0(05):-
AIM:To observe the protective effect of Nano-Se on myocardium of experimental diabetes mice.METHODS:Sixty healthy male KM mice were chosen,ten of which were selected randomly as the normal control group.After fasted for 24 h,the rest 50 mice were injected with streptozotocin(STZ,50 mg/kg)intraperitoneally for 5 d.At 7th d,the blood-sugar was measured from vena caudalis,40 mice,of which blood-sugar exceeded 16.65mmol/L,were selected and randomized into 4 groups:the positive control group,low dose(25 ?g/kg)Nano-Se group,mid dose(50 ?g/kg)Nano-Se group,high dose(50 ?g/kg)Nano-Se group.All mice were given intragastric administration of 0.2 mL normal saline and corresponding dose of Nano-Se.The body weights were measured every week,and the dose of which was adjusted according to the change of the body weights.8 weeks later,the mice were killed and cardiac muscle of the left ventricle was taken.The myocardium was prepared to 10% homogenate for measuring SOD,GSH-Px activity and MDA content.The myocardial cell apoptosis was measured by TUNEL.The expressions of Bc1-2 and Bax proteins were determined by immunohistochemistry.RESULTS:Compared to normal group,the SOD and GSH-Px activities in positive control group decreased,MDA level increased,the rate of myocardial cell apoptosis increased significantly,Bc1-2 protein expression deceased and Bax protein expression increased.Compared to positive control group,the SOD and GSH-Px activities in low and mid dose Nano-Se groups expression increased,MDA level decreased,myocardial cell apoptosis rate decreased,Bc1-2 protein expression increased and Bax protein expression decreased.Moreover,the SOD and GSH-Px activities in high dose Nano-Se group decreased obviously compared to those in mid dose Nano-Se group.MDA level and myocardial cell apoptosis rate increased,Bc1-2 protein expression decreased and Bax protein expression increased,no significant difference in SOD,GSH-Px activity,MDA level and myocardial cell apoptosis rate was observed compared with positive control group.CONCLUSION:The damage of cardiac muscle is alleviated when a certain dose of Nano-Se is supplied to diabetes mice.The protective mechanism may be related to antioxidation,blood-sugar adjustment and the increase of Bc1-2 expressing.
6.Research on the Relationship between CRP,HCY and TCM Syndrome Types of Diabetes Mellitus with Hymeperuricemia.
Changqing MA ; Shanjiang YU ; Xianmin WANG ; Hua YAO
Journal of Medical Research 2006;0(02):-
Objective To study the value of CRP and HCY in each TCM type of T2DM with HUA and provide the basis for classification and treatment.Methods 103 cases of T2DM and HUA were divided into four Chinese medicine syndrome groups including deficinecy syndrome of wind-cold and damp-heat phlegm accumlatoin and blood stasis syndrome deficinecy syndrome of Qi and Yin deficinecy syndrome of Yin and yang.Results The differentiation of TCM symptom among four groups was uncorrelated with the level of CRP and Hcy.But the serum CRP and HCY levels increased slighly as compared with those of normal control group.Conclusion The elevation of CRP and Hcy is closely correlated with phlegm accumlation and blood stasis syndrome in patients of T2DM with HUA.As an inflammatoy biomarker,CRP and Hcy may be regard as two of the microcosmic indicators of toxin in Chinese medicine.They can be used as two important indexes of TCM syndrome differentiation of T2DM with HUA.
7.Clinical observation on therapeutic effect of bloodletting therapy for treatment of patients with piriformis injury syndrome
Wei ZHOU ; Junhu MA ; Hua LEI ; Fuquan JING ; Yu ZHOU
Chinese Journal of Integrated Traditional and Western Medicine in Intensive and Critical Care 2017;24(3):313-315
Objective To observe the curative effect of pricking bloodletting combined with acupuncture on patients with piriformis injury syndrome.Methods A prospective randomized controlled clinical trial was conducted, 84 patients with piriformis injury syndrome admitted to the Department of Acupuncture and Massage in the First Affiliated Hospital of Xinjiang Medical University from May 2011 to May 2014 were enrolled, and they were divided into observation group and control group by random number table, each group being 42 cases. The patients in the observation group were treated with bloodletting once a week (after bloodletting no other treatment was given), and then once a day of acupuncture was performed for 4 days in a week, completing one therapeutic course; while in the control group, the patient was treated with routine acupuncture once a day for 5 days in a week, finishing one therapeutic course. The interval between two therapeutic courses was 2 days, two courses were carried out, and afterwards the clinical therapeutic effects were evaluated in the two groups. The changes of visual analogue scale (VAS) of two groups before and after treatment and the therapeutic effects were observed.Results The VAS score of the two groups after treatment was lower than that before treatment, and the degree of decrease of VAS score in the observation group was significantly lower than that of thecontrol group (1.50±1.35 vs. 2.69±1.68,P < 0.01); the total effective rate in the observation group was obviously higher than that in the control group [100.00% (42/42) vs. 69.05% (29/42),P < 0.01].Conclusion Pricking bloodletting combined with acupuncture therapy for treatment of piriformis injury syndrome can shorten the course of treatment.
8.Exploration of research innovation capacity building for young talents in research-oriented hospitals
Jing YU ; Jin MA ; Zhigui SHAN ; Yuge LI ; Hua YAO
Chinese Journal of Medical Science Research Management 2017;30(3):209-211,216
Objective To analyze youth talents' scientific research projects in research oriented hospital for recent five years,provide scientific basis for hospitals to strengthen the youth talents' capacity building of research innovation.Methods Identify those youth talents who have been funded in the First Affiliated Hospital of Xinjiang Medical University,and statistically analyze the demographic information,granted scientific research projects and hospital funding situations.Results There are 140 young talents who have got scientific research projects from 2011 to 2015 in the hospital.The national project number and the trend of approval rate has no obvious change;the provincial level project number and approval rate showed a trend of a significant increase in the last two years;Setting up the hospital fund promoted the youth talents' scientific research ability,but there are still spaces for further improvement in the funding field and founded group.Conclusions There has been a group of youth talents to stand out from the crowd during the construction and the development of the researchoriented hospital,but youth talents remains scarce for the national key projects and talent projects,and that will put forward new requirements for the hospital in the future to strengthen the youth talents' capacity building of research innovation,which needs to gradually establish a suitable cultivation mode and mechanism for youth talents' growth.
9.Effects of substrate stiffness on the proliferation of primary human umbilical vein endothelial cells and the release of NO and ET-1 during dengue virus infection
Fangfang YU ; Lili CUI ; Hua PEI ; Jing MA ; Li ZUO
Chinese Journal of Microbiology and Immunology 2015;(2):133-138
Objective To investigate the effects of substrate stiffness on the proliferation of human umbilical vein endothelial cells ( HUVEC) during dengue virus infection.Methods Polyacrylamide gels were prepared for cell culture [(0±4) kPa].The proliferation of HUVEC cultured on substrates with differ-ent stiffness was determined by using 3-(4,5-diethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfo-phenyl)-2H-etrazolium,inner salt ( MTS) assay.The cycle and apoptosis of HUVEC were determined by flow cytometry analysis.Dengue virus serotype 2 (DENV-2) strains were propagated and identified by con-ventional assays.The HUVEC were infected with DENV-2 strains at a MOI of 10 and cultured on traditional plastic and hydrogel substrates, respectively.The levels of nitric oxide (NO) and endothelin-1 (ET-1) were detected by nitric acid reductase assay and double antibody sandwich ELISA.Results Young′s modulus E value of the hydrogels was (3030 ±0.44) Pa.The proliferation of HUVEC and the expression of NO and ET-1 were enhanced along the increased substrate stiffness.However, no significant differences with the cell cycle and apoptosis were observed between cells cultured on different substrates.Conclusion The stiffness of substrates affected not only the proliferation of HUVEC, but also the release of cytokines during DENV-2 infection.The development of dengue fever was associated with the decreased secretion of vascular active substances as a result of blood vessel injury.The establishment of hydrogel substrates as the model of vascu-lar basement membranes might provide a new way for the in vitro investigation of the pathogenesis of DENV infection.
10.Influence of the Detoxification and Dissipation Blood Stasis Formula Ⅱ on Hepatic Mitochondria Lipid Peroxidation in Rats with Hepatic Failure
Dewen MAO ; Hua QIU ; Jing YU ; Yinyao MA
China Pharmacy 1991;0(03):-
OBJECTIVE:To investigate the influence of TCM Granules of the detoxification and dissipation blood stasis formula Ⅱon fulminant hepatic mitochondrial lipid peroxidation in rats with hepatic failure.METHODS:The fulminant hepatic failure rat models were established by subcutaneous injection of thioacetamide (TAA).48 Wistar rats were randomly divided into 7 groups:blank control group,model group,low dose group,medium dose group,high dose group,the lactulose treatment group,and the "Bezoar pill for resurrection" treatment group.Intragastric administration was executed 3 d before model-making,twice per day with the interval of 12 hours.They were administered for 11times.12 hours after model establishment.MDA、SOD、CAT、GSH、NO and liver necrosis area in hepatic mitochondria were determined.RESULTS:The detoxification and dissipation blood stasis formula Ⅱcould notably reduce liver necrosis area and restrain produce of hepatic mitochondrial lipid peroxidatide MDA,retrieve the activity of SOD、CAT and increase the content of GSH,NO.Moreover it shows dose-effect relation.Compared with model group,there is statistical significance(P