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Influence of rotating magnetic field on cerebral infarction volume, cerebral edema and free radicals metabolism after cerebral ischemia/reperfusion injury in rats

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Neural Regeneration Research 2006年第9期1卷 777-780页

作者： Xiaohong Liu1, Zhiqiang Zhang2, Lixin Zhang3 1liaoning Disabled Children’s rehabilitation Center, shenyang 110015, liaoning province, china 2department of rehabilitation, second hospital affiliated to china medical university, shenyang 110003, liaoning province, china 3department of rehabilitation and Physiotherapy, First hospital affiliated to china medical university, shenyang 110001, liaoning province, china liaoning Disabled Children's rehabilitation Center Shenyang 110015 Liaoning Province China department of rehabilitation China Medical University Shenyang 110003 Liaoning Province China department of rehabilitation and Physiotherapy China Medical University Shenyang 110001 Liaoning Province China

BACKGROUND: It has shown that magnetic field can improve blood circulation, decrease blood viscosity, inhibit free radicals, affect Ca2+ flow in nerve cells, control inflammatory and immunological reaction, and accelerate nerve cell regeneration. In addition, protective effect of magnetic field, which acts as an iatrophysics, on ischemic brain tissues has been understood gradually. OBJECTIVE: To investigate the effects of rotating magnetic field (RMF) on volume of cerebral infarction, cerebral edema and metabolism of free radicals in rats after cerebral ischemia/reperfusion injury. DESIGN: Randomized controlled animal study. SETTING: rehabilitation Center of disabled children, Liaoniang; department of rehabilitation, the second affiliated hospital, china medical university; department of rehabilitation Physiotherapy, the First affiliated hospital, china medical university. MATERIALS: A total of 70 healthy Wistar rats aged 18-20 weeks of both genders were selected and randomly divided into 3 groups: sham operation group with 12 rats, control group with 20 rats and treatment group with 38 rats. The treatment group included 4 time points: immediate reperfusion with 6 ones, 6-hour reperfusion with 20 ones, 12-hour reperfusion with 6 ones and 18-hour reperfusion with 6 rats. Main instruments were detailed as follows: magnetic head of rotating magnetic device was 6 cm in diameter; magnetic induction intensity at the surface of magnetic head was 0.25 T in silence; the maximal magnetic induction intensity was 0.09 T at the phase of rotation; the average rotating speed was 2500 r per minute. METHODS: The experiment was carried out in the china medical university in March 2003. Focal cerebral ischemic animal models were established with modified Longa’s method. Operation was the same in the sham operation, but the thread was inserted as 10 mm. Neurologic impairment was assessed with 5-rating method to screen out cases. Those survivals with grade 1 and grade 2 after ischemia f

关键词： cerebral edema and free radicals metabolism after cerebral ischemia/reperfusion injury in rats free

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Cyclooxygenase-2 polymorphisms and susceptibility to gastric carcinoma: A meta-analysis

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World Journal of Gastroenterology 2010年第43期16卷 5510-5517页

作者： Jia-Li Liu, Zhen-Ning Wang, department of Surgical Oncology and General Surgery, the First affiliated hospital of china medical university, shenyang 110001, liaoning province, china Yuan Liang, department of Oncology, the Shengjing affiliated hospital of china medical university, shenyang 110001, liaoning province, china Xin Zhou, department of Obstetrics and Gynecology, the Shengjing affiliated hospital of china medical university, shenyang 110001, liaoning province, china Li-Li Xing, department of Oncology, the Fourth affiliated hospital of china medical university, shenyang 110032, liaoning province, china department of Surgical Oncology and General Surgery the First Affiliated Hospital of China Medical University Shenyang 110001 Liaoning Province China. josieon826@***

AIM: To investigate the association of the cyclooxygenases-2 (COX-2) polymorphisms and susceptibility to gastric cancer (GC) by means of meta-analysis. METHODS: Publications addressing the association between polymorphisms of COX-2 and susceptibility to GC were selected from the MEDLINE, EMBASE and CBMdisc databases. Data was extracted from the studies by 2 independent reviewers. The meta-analyses were performed by RevMan 5.0.23. From these data, odds ratio (OR) with 95% confidence interval (CI) was ***: Ten studies were retrieved reporting a total of 11 COX-2 polymorphisms. Carriers of -765C, -1195A, -1290G, *2430T alleles and *429TT genotype revealed increased risk for GC (OR = 1.71, 95% CI: 1.01-2.90, P = 0.05; OR = 1.58, 95% CI: 1.05-2.38, P = 0.03; OR = 1.55, 95% CI: 1.01-2.39, P = 0.05; OR = 2.62, 95% CI: 1.20-5.73, P = 0.02 and OR = 0.74, 95% CI: 0.59-0.95, P = 0.02, respectively). CONCLUSION: The -765C, -1195A, -1290G, *2430T alleles and *429TT genotype of COX-2 polymorphisms were determined a significant association with susceptibility to GC.

关键词： Cyclooxygenases-2 Gastric cancer Polymorphisms Susceptibility Meta-analysis

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Effect of calcitonin gene-related peptide and nerve growth factor on spatial learning and memory abilities of rats following focal cerebral ischemia/reperfusion

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Neural Regeneration Research 2006年第8期1卷 673-676页

作者： Guangshun Zheng1, Yongjie Yang2, Xiubin Fang3 1department of Neurosurgery, second hospital of Xiamen, Xiamen 361021, Fujian province, china 2department of Neurosurgery, second hospital affiliated to china medical university, shenyang 110004, liaoning province, china 3department of Neurobiology, Basic medical College of china medical university, shenyang 110001, liaoning province, china department of Neurosurgery Second Hospital of Xiamen Xiamen 361021 Fujian Province China department of Neurosurgery China Medical University Shenyang 110004 Liaoning Province China department of Neurobiology Basic Medical College China Medical University Shenyang 110001 Liaoning Province China

BACKGROUND: Calcitonin gene-related peptide (CGRP) and nerve growth actor (NGF) cam improve spatial learning and memory abilities of rats with cerebral ischemia/reperfusion; however, the effect of combination of them on relieving learning and memory injury following cerebral ischemia/reperfusion should be further studied. OBJECTIVE: To study the effects of exogenous CGRP and NGF on learning and memory abilities of rats with focal cerebral ischemia/reperfusion. DESIGN: Randomized controlled animal study. SETTING: department of Neurosurgery, the second hospital of Xiamen; department of Neurosurgery, the second affiliated hospital of china medical university; department of Neurobiology, Basic medical College of china medical university. MATERIALS: A total of 30 healthy male SD rats, aged 8 weeks, of clean grade, weighing 250-300 g, were provided by Experimental Animal department of china medical university. All rats were randomly divided into sham-operation group, ischemia/reperfusion group and treatment group with 10 in each group. The main reagents were detailed as the follows: 100 g/L chloral hydrate, 0.5 mL CGRP (2 mg/L, Sigma Company, USA), and NGF (1× 106 U/L, 0.5 mL, Siweite Company, Dalian). METHODS: The experiment was carried out in the department of Neurobiology, Basic medical College of china medical university from February to July 2005. Rat models of middle cerebral artery occlusion were established by method of occlusion, 2 hours after that rats were anesthetized and the thread was slightly drawn out for 10 mm under direct staring to perform reperfusion. Rats in the ischemia/reperfusion group received intraperitoneal injection of 1 mL saline via the abdomen at two hours later, while rats in the treatment group at 2 hours later received intraperitoneal injection of 2 mg/L CGRP (0.5 mL) and 1×106 U/L NGF (0.5 mL) once a day for 10 successive days. First administration was accomplished within 15 minutes after ischemia/reperfusion. Rats in the sham-operation

关键词： Effect of calcitonin gene-related peptide and nerve growth factor on spatial learning and memory abilities of rats following focal cerebral ischemia/reperfusion CGRP MCAO gene

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Optical coherence tomography assessed retinal nerve fiber layer thickness in patients with Alzheimer's disease:a meta-analysis

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International Journal of Ophthalmology(English edition) 2012年第3期5卷 401-405页

作者： Xue-Fei He 1,Yi-Ting Liu 2,Cheng Peng 1,Fan Zhang 1,Shi Zhuang 1,Jin-Song Zhang 1 1Key Laboratory of Lens Research liaoning province,department of Ophthalmology,Eye hospital of china medical university,the Fourth affiliated hospital of china medical university shenyang 110005,liaoning province,china 2 department of Clinical Epidemiology,the First affiliated hospital,china medical university,shenyang 110001,liaoning province,china Key Laboratory of Lens Research liaoning province Department of Ophthalmology Eye Hospital of China Medical University the Fourth Affiliated Hospital of China Medical University Shenyang 110005 Liaoning Province China department of Clinical Epidemiology the First Affiliated Hospital China Medical University Shenyang 110001 Liaoning Province China

AIM:To investigate the difference of retinal nerve fiber layer(RNFL) thickness between Alzheimer's disease patients and normal people,so as to provide clue for the early diagnosis of Alzheimer's disease.· METHODS:The articles on the association of RNFL thickness and Alzheimer's disease were retrieved by searching international and national *** qualified articles were assessed by meta analysis with Stata11.0 *** results were pooled using weighted mean difference(WMD) with a corresponding 95% confidence interval(CI).· RESULTS:Totally 7 studies enrolled 324 eyes were included in the *** results of meta analysis showed that in AD patients,there was a significant average RNFL thickness reduction compared with the control group [WMD=-17.561,95%CI:(-23.971,-11.151)].There were significant differences in superior,inferior,nasal and temporal RNFL thickness between the two *** with a 95%CI were [-18.829,95%CI:(-25.915,-11.743);P25.775,95%CI:(-34.304,-17.247);P 29.141,-4.613);P28.002,-1.128);P<0.001] ***'s test and Egger's test did not show significant difference,funnel plot was basically symmetrical,indicating that there was no publication bias existed.· CONCLUSION:There are significant differences in the RNFL thickness in all quadrants between the two *** thickness is reduced in AD patients compared with the control group.·

关键词： retinal nerve fiber layer thickness optical coherence tomography Alzheimer's disease meta analysis

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Controlling N-methyl-D-aspartate receptor subunit 1 with calcitonin gene related peptide after cerebral ischemic injury

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Neural Regeneration Research 2006年第7期1卷 585-588页

作者： Jixiang Cui1, Peng Qu2, Chunping Qiao3 1department of Clinical Laboratory, Fourth affiliated hospital of china medical university, shenyang 110032, liaoning province, china 2department of Neurobiology, Basic medical College of china medical university, shenyang 110032, liaoning province, china 3department of Emergency, Baicheng Central hospital of Jilin province, Baicheng 137000, Jilin province, china department of Clinical Laboratory Hospital of China Medical University Shenyang 110032 Liaoning Province China department of Neurobiology Basic Medical College China Medical University Shenyang 110032 Liaoning Province China department of Emergency Baicheng Central Hospital of Jilin Province Baicheng 137000 Jilin Province China

BACKGROUND: Activation of N-methyl-D-aspartate receptor (NMDAR) is a key link of exitotoxicity at the phase of cerebral ischemic injury. Because NMDAR is a main way to mediate internal flow of Ca2+ among glutamic acid receptors, over-excitation can cause neuronal apoptosis. Calcitonin gene related peptide has a strongly biological activity. On one hand, it can protect ischemic neurons through inhibiting the expression of NMDAR1 mRNA; on the other hand, it can play the protective effect through down-regulating the expression of NMDAR1 mRNA by exogenous calcitonin gene related peptide. OBJECTIVE: To observe the expression of NMDAR1 and the regulatory effect of calcitonin gene related peptide on the expression of NMDAR1 mRNA and protein in the cerebral cortex of rats with focal cerebral ischemia/reperfusion (I/R). DESIGN: Randomized controlled animal study. SETTING: china medical university. MATERIALS: A total of 216 healthy male Wistar rats, general grade, weighing 250-280 g, were selected in this study. Twelve rats were randomly selected to regard as control group; meanwhile, other 204 rats were used to establish middle cerebral artery occlusion/reperfusion (MACO) models. The main reagents were detailed as follows: calcitonin gene related peptide (Sigma Company); calcitonin gene related peptide kit (Boster Company); antibody Ⅰ, Ⅱ and antibody β-actin Ⅰ, Ⅱ of NMDAR1 mRNA and chemiluminescence reagent (Santa Cruz Company, USA). METHODS: The experiment was carried out in the Laboratory of Neurobiology of china medical university from August 2005 to June 2006. ① Right MCAO models of rats were established to cause focal ischemia and scored based on Zea Longa five-grade scale. If the scores were 1, 2 and 3 after wakefulness, the MACO models were established successfully and involved in the experiment. A total of 120 rats with successful modeling were randomly divided into I/R group and administration group with 60 in each group. All rats in the both groups were observed at

关键词： NMDAR mRNA Controlling N-methyl-D-aspartate receptor subunit 1 with calcitonin gene related peptide after cerebral ischemic injury gene

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TGF-β_1 in retinal ganglion cells in rats with chronic ocular hypertension: its expression and anti-apoptotic effect

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International Journal of Ophthalmology(English edition) 2011年第4期4卷 396-401页

作者： Yong-Jian Tao 1, Dian-Wen Gao 1, Miao Yu 2 1department of Ophthalmology, Shengjing hospital of china medical university, shenyang 110004, liaoning province, china 2 shenyang Pharmaceutical university, shenyang 110016, liaoning province, china department of Ophthalmology Shengjing Hospital of China Medical University Shenyang 110004 Liaoning Province China shenyang Pharmaceutical university Shenyang 110016 Liaoning Province China

AIM: To investigate the anti-apoptotic effect of transforming growth factor beta-1 (TGF-β1) on chronic ocular hypertension. METHODS: The expression of TGF-β1 in retinal ganglion cells (RCGs) was measured using the immunohistochemiscal S-P method and real-time PCR in the normally control group, the ocular hypertension group (experimental group A), the ocular hypertension plus antibody intervention group (experimental group B) and the ocular hypertension plus antigen intervention group (experimental group C) at 1, 2, 3 and 4 weeks postoperatively. The count of apoptotic RCGs was measured using the TUNEL method. RESULTS: The expression of TGF-β1 was significantly higher in experimental group C than that in other three groups (P<0.05). The expression was the lowest in experimental group B (4.17%). A statistically significant difference was noted between the four groups (P <0.01). The count of apoptotic RCGs was statistically significantly lower in experimental group C than that in the experimental groups A and B (P <0.01). A statistically significant difference was noted in the count of apoptotic RCGs between these three experimental groups (P <0.01). CONCLUSION: TGF-β1 can inhibit the apoptosis of RCGs in rats with chronic ocular hypertension.

关键词： glaucoma nerve protect TGF-β1 retinal ganglion cells chronic ocular hypertension

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Hepatic blood inflow occlusion without hemihepatic artery control in treatment of hepatocellular carcinoma

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World Journal of Gastroenterology 2010年第46期16卷 5895-5900页

作者： Shan Jin,department of General Surgery,affiliated hospital of Inner Mongolia medical College,Hohhot 010050,Inner Mongolia Autonomous Region,china Chao-Liu Dai,department of Hepatobiliary Surgery,Shengjing hospital,china medical university,shenyang,liaoning province,china department of General Surgery Affiliated Hospital of Inner Mongolia Medical College Hohhot 010050 Inner Mongolia Autonomous Region China. jinshangood@***

AIM:To investigate the clinical significance of hepatic blood inflow occlusion without hemihepatic artery control (BIOwHAC) in the treatment of hepatocellular carcinoma (HCC).METHODS:Fifty-nine patients with HCC were divided into 3 groups based on the technique used for achieving hepatic vascular occlusion:group 1,vascular occlusion was achieved by the Pringle maneuver (n=20);group 2,by hemihepatic vascular occlusion (HVO) (n=20);and group 3,by BIOwHAC (n=19).We compared the procedures among the three groups in term of operation time,intraoperative bleeding,postoperative liver function,postoperative complications,and length of hospital ***:There were no statistically significant differences (P > 0.05) in age,sex,pathological diagnosis,preoperative Child's disease grade,hepatic function,and tumor size among the three *** intraoperative complications or deaths occurrred,and there were no significant intergroup differences (P > 0.05) in intraoperative bleeding,hepatic function change 3 and 7 d after operation,the incidence of complications,and length of hospital *** and Pringle maneuver required a significantly shorter operation time than HVO;the difference in the serum alanine aminotransferase or aspartate aminotransferase levels before and 1 d after operation was more significant in the BIOwHAC and HVO groups than in the Pringle maneuver group (P < 0.05).CONCLUSION:BIOwHAC is convenient and safe;this technique causes slight hepatic ischemia-reperfusion injury similar to HVO.

关键词： Hepatic blood inflow occlusion without hemihepatic artery control Hepatocellular carcinoma Intraoperative bleeding Ischemia-reperfusion injury

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^(103)Pd-induced apoptosis of proliferative smooth muscle cells in bile ducts of dogs:significance and effects on related genes

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Hepatobiliary & Pancreatic Diseases International 2007年第5期6卷 521-526页

作者： Gui-Jin He,Fa-Qiang Yu,Rong Wu,Qin-Yi Gao,Shu-He Xu,Hong Gao, Wei-Guo Jiang,Tao Jiang and Xian-Wei Dai department of General Surgery,second affiliated hospital(Shengjing hospital),china medical university,shenyang 110004,china,Radiotherapy Center,second affiliated hospital(Shengjing hospital),china medical university,shenyang 110004,china,Pediatrics Surgery Laboratory,second affiliated hospital(Shengjing hospital),china medical university,shenyang 110004,china,department of Pathology,second affiliated hospital(Shengjing hospital),china medical university,shenyang 110004,china Isotope Unit,First affiliated hospital,china medical university,shenyang 110001,china and Isotope Research Institute,china Institute of Atomic Energy,Beijing 100050,china department of General Surgery Second Affiliated Hospital (Shengjing Hospital) China Medical University Shenyang 110004 China. 23318199@***

BACKGROUND:With the objective of developing a locally- produced radioactive stent,the present study used in vivo animal experiments to explore apoptosis of proliferative smooth muscle cells resulting from facilitation of the expression of genes caused byγ-radiation in order to prevent bile duct *** therefore explored the effects and significance ofγ-radiation on the activity of caspase-3,Fas and Bcl-2 genes in apoptosis of proliferative smooth muscle cells in the bile duct walls of dogs. METHODS:Twelve dogs were randomly divided into 2 groups(6 in each group).A postinjury bile duct stenosis model was established and radioactive 103 Pd( 103 palladium) or ordinary bile duct stents were implanted into the bile *** staining,RT-PCR and immunohistochemistry were used to detect the proliferation and apoptosis of bile duct smooth muscle cells in proliferative endomembrane and the expression of related caspase-3,Bcl-2 and Fas genes. RESULTS:The expression of caspase-3 and Fas genes in the bile duct tissues of dogs with radioactive stents was higher than that of dogs with ordinary *** was significant apoptosis of proliferative smooth muscle cells in the bile *** expression of the Bcl-2 gene in the bile duct tissues of dogs with radioactive stents was lower than that in those with ordinary *** was significant apoptosis of proliferative smooth muscle cells in the dogs with low Bcl-2 gene expression. CONCLUSIONS:Radiation increases the activity of caspase-3 and Fas genes and is associated with apoptosis. The radioactive 103 Pd stent may facilitate apoptosis of proliferative smooth muscle cells in the bile ducts of dogs by activating these *** Bcl-2 gene expression level is correlated with the occurrence of apoptosis and the radiosusceptibility of cells.

关键词： radioactive 103 Pd stent γ-radiation caspase-3 gene Fas gene Bcl-2 gene apoptosis

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Tanshinone IIA inhibits endothelin-1 production in TNF-α-induced brain microvascular endothelial cells through suppression of endothelin-con-verting enzyme-1 synthesis

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Acta Pharmacologica Sinica 2007年第8期28卷 1116-1122页

作者： Chao TANG~1 An-hua WU~(1,3) Hong-li XUE~2 Yurl-jie WANG~1 ~1department of Neurosurgery,the First affiliated hospital,china medical university ~2department of Neurosurgery,General hospital of shenyang Military Command,shenyang 110001,china. department of Neurosurgery the First Affiliated Hospital China Medical University Shenyang 110001 China department of Neurosurgery General Hospital of Shenyang Military Command Shenyang 110001 China

Aim:To investigate the effects of tanshinone ⅡA（Tan ⅡA）on the regulation ofthe production of endothelin（ET）-1（including large ET-1）,mRNA levels of ET-1,endothelin-converting enzyme-1（ECE-1）,endothelin-A receptor（ETA）andendothelin-B receptor（ETB）induced by TNF-α in rat brain microvascular endo-thelial cells（BMVEC）.Methods:The ET-1 release（including large ET-1）into theculture medium was determined by enzyme *** levels of ET-1,ECE- 1,ETA,and ETBmRNA were measured by *** receptor bind-ing was also ***:The induction of ET-1 release by TNF-α from cul-tured BMVEC was dose-dependently reduced by Tan IIA,but large ET-1 levelsprogressively increased in response to Tan ⅡA;the mRNA expression of ET-1 *** ⅡA also caused a decrease in ETAreceptor mRNA and ECE-1expression in a dose-dependent *** receptor binding was unal-tered in BMVEC stimulated with TNF-α alone or a combination of TNF-α and TanⅡ***:These findings suggest that Tan ⅡA may inhibit ET-1 produc-tion in TNF-α-induced BMVEC through the suppression of ECE-1 synthesis.

关键词： tanshinone IIA endothelin-1 TNF-α brain microvascular endothelial cells

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Corticosteroids or non-corticosteroids: a fresh perspective on alcoholic hepatitis treatment

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Hepatobiliary & Pancreatic Diseases International 2011年第5期10卷 458-464页

作者： Fei Wang and Bing-Yuan Wang department of Gastroenterology, First affiliated hospital, china medical university, shenyang 110001, china department of Gastroenterology First Affiliated Hospital China Medical University Shenyang 110001 China

BACKGROUND: Alcoholic hepatitis (AH) is a necrotizing inflammatory process caused by alcoholic liver injury. It carries a significant short-term mortality. The management of AH is challenging. Although corticosteroids have been demonstrated to exert anti-inflammatory and antifibrotic effects, their efficacy for the treatment of AH remains debatable. DATA SOURCES: A literature search was performed of MEDLINE, ScienceDirect, SpringerLink and Wiley InterScience using the key words 'alcoholic hepatitis', 'alcoholic liver disease', and 'corticosteroids'. The available data reported in the relevant literature were analyzed. RESULTS: More than 17 controlled trials and at least 13 meta-analyses have reported the efficacy of corticosteroids in the treatment of AH in the past 40 years. Many were poorly designed and used different inclusion/exclusion criteria, making it difficult to reach a consensus. In this review, we summarized all the controversial data in the past decade and analyzed the potential causes for the varying therapeutic effects of corticosteroids in AH. The focus of the controversy has changed from 'whether steroids are beneficial or harmful for AH patients' to 'how to accurately identify responders to steroids early and rationalize corticosteroid treatment'. An early response to glucocorticoids, as determined by calculating the Lille score after 7 days of treatment, has been shown to be a clinically useful indicator. Moreover, down-regulation of steroid sensitivity, risk of infection, and a rational therapeutic strategy of corticosteroids in AH patients are all crucial for therapeutic ***: An early and accurate determination of steroid sensitivity is important. Besides, we need to overcome the down-regulation of steroid sensitivity, reduce the infection risk and rationalize the therapeutic strategy of corticosteroids. A fresh perspective is needed on the use of corticosteroids in AH patients.

关键词： corticosteroids alcoholic liver disease alcoholic hepatitis steroid sensitivity scoring system

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