1.Hijacking The Eukaryotic MAPK Pathway by Pathogens
Progress in Biochemistry and Biophysics 2006;0(09):-
MAPK(mitogen-activated protein kinase) family,which is conserved throughout high eukaryotes,is implicated in multiple cellular processes including cell growth,migration,proliferation,differentiation,survival and development.Pathogen hijacks hosts' MAPK pathways to facilitate its pathogenesis using diverse strategies.To further explore the mechanism underlying interactions between pathogens and hosts' MAPK pathway,is of benefit to our understanding of nature as well as to our fight against pathogen infection.
2.Efficacy of endovascular interventional minimally invasive techniques in treatment of acute brachial artery injury
Xiquan ZHANG ; Shitang GE ; Zhong CHEN ; Ge DONG ; Feng GUO
Chinese Journal of Trauma 2017;33(3):281-284
Objective To evaluate the efficacy of endovascular interventional minimally invasive techniques in treatment of acute brachial artery injury.Methods A retrospective case series study was designed to analyzed data of 16 cases (11 males and 5 females) sustaining acute brachial artery injury treated from March 2011 to August 2016.Mean age was 47.9 years (range,27-66 years).Left upper extremity vascular injury occurred in 7 cases and right upper extremity vascular injury occurred in 9.There were 13 cases of arterial intima injury and 3 of arterial pseudoaneurysm.All patients underwent endovascular therapy including stent implantation and balloon dilatation.Angiography was used to evaluate the repair of brachial artery and the operation time was recorded.Improvements of distal limb arterial pulse and limb ischemic symptoms were observed,and the patients who were followed up with stent lumen stenosis more than 50% received endovascular treatment again.Results The procedures was successful in all patients,with operation time of 30-75 minutes (mean,45 minutes).After the insertion of a stent,recovered brachial artery blood flow and disappeared pseudoaneurysm were observed on angiography,without occurrence of stent stenosis or contrast extravasation.Symptoms of local pain and numbness were alleviated,and blood supply of the distal brachial artery was improved after operation.All patients were followed up for 3-36 months(mean,16.7 months).The false aneurysm did not recur.Two cases of stent stenosis more than 50% had a second balloon dilation procedure and the blood flow returned to normal.Stent patency was found in 14 cases with stent stenosis of less than 50%.During the follow-up period,no ischemic necrosis,displacement of the stent or stent fracture were found.Conclusion For acute brachial artery injury,endovascular management exhibits higher technical success rate and good clinical outcome with a low incidence of complications.
3.Effect of ondansetron on thermal pain threshold in rats with experimental neuropathic pain
Feng LIU ; Hengjiang GE ; Rong ZHOU
Journal of Third Military Medical University 2003;0(22):-
Objective To investigate the effect of ondansetron on the development of neuropathic pain in rats following chronic constriction injury (CCI) on sciatic nerve. Methods This research consisted of 3 parts. ①A single bolus of ondansetron was given intraperitoneally 2 h before nerve injury; ②A single bolus of ondansetron was given intraperitoneally on the 7th day after nerve injury; ③Continuous administration of ondansetron was given daily for 35 d; In each part, male SD rats were randomly divided into ondansetron group (0.5, 2, 8 mg/kg), saline group and sham operated group. The paw withdrawal response to thermal stimulation was tested throughout the 35 d following nerve injury. Results Ondansetron administration before nerve injury had no effect on thermal pain threshold in rats of experimental neuropathic pain. ondansetron administration on the 7th day after nerve injury attenuated the descending of thermal pain threshold but did not alter its descending trend in subsequent time period. Daily administration of ondansetron for 35 d attenuated and further delayed the descending of thermal pain threshold significantly in a dose-dependent manner. Conclusion Continuous administration of ondansetron can prevent or at least delay the descending of thermal pain threshold of rats with experimental neuropathic pain after constriction injury.
5.Screening of antimicrobial peptide from marine clamworm Marphysa sanguinea and preliminary research on its antitumor effect
Weidong PAN ; Xianghui LIU ; Feng GE
Chinese Journal of Marine Drugs 1994;0(03):-
Active fractions were obtained from the c(?)amworm homogenate by reverse-phase concentration, gel filtration and affinity column chromatography. The MTS/PMS assay was used in the screening of antimicrobial peptide in vitro. The MTS/PMS assay and ELISAAFP method were combined to evaluate the effects of antimicrobial peptide on the proliferation and ?-fetoprotein secretion of HepG2 cells as well as on the proliferation of normal mouse osteoblast MC3T3-E1. The results showed that the purified antimicrobial peptide from clamworm Murphysa sanguinea was a constitutive basic protein with MW 8.1 kDa and pI 8.6, which showed inhibition effects on the proliferation and ?-fetoprotein secretion of HepG2 cells at different levels. These effects have a positive correlation with the concentrations of antimicrobial peptide. No obvious inhibition and damage effects were observed on the normal osteoblast.
6.Transcatheter occlusion of very large patent ductus arteriosus (PDA) with homemade PDA closure device
Feng ZHANG ; Daxin ZHOU ; Junbo GE
Chinese Journal of Interventional Cardiology 1996;0(04):-
Objective To evaluate the safety and efficacy of homemade patent ductus arteriosus (PDA) closure device for patients with very large PDA. Methods A total of 15 patients (12 females) with very large PDA, underwent transcatheter occlusion with homemade PDA devices. The median age was 21?8 (16-46) years old. The median diameter of the PDA at its narrowest point was 16?3 (13-22) mm. Aortic angiography and measurement of pulmonary pressure were performed before and after the closure of PDA. Repeat echocardiography was performed on each patient at one week, one month and six months after the procedure. Results Fifteen patients underwent transcatheter closure using a device of 23?4 (18-32)mm in diameter, and all of them showed a trace to small shunt by aortic angiography 30 minutes after the procedure. Thirteen patients was successfully occluded with a peak systolic pulmonary pressure decreased from 113?21 mm?Hg to 70?29 mm?Hg (P
7.Expression of PSMD10 and Ki67 in epithelial ovarian carcinoma and its clinicopathological significance
Ge YU ; Jianing SUN ; Xiaoling FENG
Practical Oncology Journal 2017;31(2):112-116
Objective The objective of this study was to investigate the expression of PSMD10 and Ki67 in epithelial ovarian tumors and its clinicopathological significance.Methods Immunohistochemical method was used to detect the expression of PSMD10 and Ki67 in 21 cases of ovarian benign tumor,31 cases of ovarian borderline tumor and 156 cases of ovarian cancer.Results The positive expression rate of PSMD10 and Ki67 in ovarian cancer was significantly higher than those of ovarian borderline and benign tumor(P<0.05).The positive expression rate of PSMD10 in ovarian cancer tissues was not different from others groups(P>0.05).There was significant different the positive expression rate of PSMD10 from clinical stage,pathological grade and residual tumor diameter(P<0.05).There was a positive correlation between the expression of PSMD10 and Ki67 in ovarian cancer(P<0.01).Conclusion PSMD10 and Ki67 play an important synergistic role in the carcinogenesis and progression of epithelial ovarian cancer.It can be used as an important index to judge the degree of malignancy and progression of ovarian cancer.Joint testing PSMD10 and Ki67 are used to guide the clinical diagnosis.
8.The reaction chain of medical disputes
Jianyi GE ; Feng CHENG ; Xiaoming KANG
Chinese Journal of Hospital Administration 1996;0(06):-
The paper reviews the background and current situation of medical disputes and puts forward the concept of the reaction chain of medical disputes in view of their high occurrence rate and the difficulty in handling them. It discusses the framework, chief content, basic principles and major features of the reaction chain of medical disputes and argues that as a commonly used tool for handling medical disputes, the reaction chain renders it possible to check from the angje of the interests of the patients whether each party involved in the dispute has fulfilled its duties. Intended to improve the professional ethics of the physicians and the quality of medical care and calling on the patients to rebuild their confidence in the physicians, the reaction chain indicates that it is necessary to scientifically analyze the entire process and various influencing factors of medical disputes and bring into play the advantages of integration so as to successfully resolve medical disputes.
9.Variation and clinical signiifcance of serum galectin-3 in children with chronic heart failure
Song FENG ; Jindou AN ; Binglu LI ; Wei GE
Journal of Clinical Pediatrics 2016;34(7):499-502
Objective To explore the variation of serum galectin-3 and its correlation with ventricular remodeling in children with chronic cardiac failure (CHF). Methods Forty-ifve children with CHF were included and divided into cardiac function II group (n=10 ), III group (n=18 ), and IV group (n=17 ) according to the severity of CHF. The subjects were also divided into endocardial fibroelastosis (EFE) group (n=21 ) and dilated cardiomyopathy (DCM) group (n=24 ) according to primary disease. Thirty health children were included as control group. The level of serum galectin-3 was detected by ELISA. The level of serum NT-pro BNP was measured by radio immunoassay. The index of ventricular remodeling was detected by ultrasonic cardiogram. The correlation of the level of serum galectin-3 with ventricular remodeling and the level of serum NT-pro BNP were analyzed. Results In 45 children ( 19 males and 26 females) with CHF, the mean age was 3 . 42 ± 1 . 89 years. The levels of serum galectin-3 and NT-pro BNP were higher in cardiac function II group, III group, and IV group than those in control group (all P0 . 05 ) and signiifcant differences in the levels also existed between cardiac function II group, III group, and IV group (P all?0 . 05 ). The level of serum galectin-3 was not different between EFE group and DCM group (P>?0 . 05 ). Spearman rank correlation analysis showed that the level of serum galectin-3 was positively correlated with the left ventricular end diastolic diameter, the left ventricular mass, the left ventricular mass fraction, and the level of serum NT-pro BNP (all P?0 . 05 ). Meanwhile the level of serum galectin-3 was negatively correlated with the left ventricular ejection fraction and the left ventricular fractional shortening (all P?0 . 05 ). Conclusion Serum galectin-3 may be helpful in clinical diagnosis and assessment of CHF in children.
10.Analysis and treatment of 13 histiocytic necrotizing lymphadenitis cases.
Hong-jun XU ; Ge GAO ; Li-feng AN
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2011;46(7):590-591
Adolescent
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Adult
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Female
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Histiocytic Necrotizing Lymphadenitis
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diagnosis
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therapy
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Humans
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Lymph Nodes
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Male
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Middle Aged
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Neck
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Young Adult