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Neural Regeneration Research 2006年第8期1卷 763-765页

作者： Xiaofang Chen1, Yueji Sun2, Haiyan Liu1, Yunqiao Ding1, Shujuan Liu1, Jinghua Chen1, Xueying Wang1, Zhenpeng Han3, Fang Qu3 1department of Neurology, dalian Port Hospital, dalian 116015, liaoning province, china 2department of psychology, dalian medical university, dalian 116023, liaoning province, china 3 department of Rheumatology, Second Affiliated Hospital of dalian medical university, dalian 116023, liaoning province, china 4department of Neurology, dalian Second People’s Hospital, dalian 116011, liaoning province, china department of Neurology Dalian Port Hospital Dalian 116015 Liaoning Province China department of psychology Dalian Medical University Dalian 116023 Liaoning Province China department of Rheumatology Hospital of Dalian Medical University Dalian 116023 Liaoning Province China

BACKGROUND: Cognitive impairment after stroke associates with various factors, such as age, educational years, etc. Besides concerning about the recovery of limb function after stroke, we should also focus on the rehabilitation of cognition. Moreover, we’d better pay attention to the control of all the risk factors of stroke, and improve the quality of life in stroke patients. OBJECTIVE: To analyze the factors that affect cognitive impairment after stroke. DESIGN: A related factors analysis. SETTINGS: department of Neurology of dalian Port Hospital and dalian Second People’s Hospital. PARTICIPANTS: Totally 148 stroke inpatients were selected from department of Neurology, dalian Port Hospital and dalian Second People’s Hospital from April 2004 to December 2005, including 100 males and 48 females, aging 45-75 years with an average age of (67±8) years; Their educational years ranged 2-10 years with an average of (6.1±3.7) years; The disease course ranged 15-30 days; All were right-handed. Inclusive criteria: All were accorded with the diagnostic standard set by the Fourth National Academic Meeting for Cerebrovascular Disease; Confirmed by CT or MRI; Informed consents were obtained from all the subjects. METHODS: After the disease conditions were stable, the patients were assessed with Wechsler memory scale (WMS) and Wisconsin card sorting test (WCST). WMS included forward and backward recitation of numbers and short-term memory (verbal memory, visual recognition). The number of times for correct and wrong classifications in WCST and the time to complete the trail making tests A and B were recorded. The focal volume, area and layer were recorded at 24 hours after admission. The general data of the patients were recorded, including name, sex, age, educational years, history of hypertension, history of diabetes mellitus. Electroencepalograph (EEG) was examined to record the wave shape, blood lipids were detected, and the cognition related indexes were analyzed with the Pe

关键词： Related factors of cognitive impairment after stroke WCST WMS

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Mitophagy and cGAS-STING crosstalk in neuroinflammation

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Acta Pharmaceutica Sinica B 2024年第8期14卷 3327-3361页

作者： Xiaogang Zhou Jing Wang Lu Yu Gan Qiao dalian Qin Betty Yuen-Kwan Law Fang Ren Jianming Wu Anguo Wu Sichuan Key medical Laboratory of New Drug Discovery and Drugability Evaluation Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia MedicaKey Laboratory of Medical Electrophysiology of Ministry of EducationSchool of PharmacySouthwest Medical UniversityLuzhou 646000China State Key Laboratory of Quality Research in Chinese Medicine Macao University of Science and TechnologyMacao SAR 999078China Chongqing Key Laboratory of Sichuan-Chongqing Co-construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine Chongqing Traditional Chinese Medicine HospitalChongqing 400021China

Mitophagy,essential for mitochondrial health,selectively degrades damaged *** is intricately linked to the cGAS-STING pathway,which is crucial for innate *** pathway responds to mitochondrial DNA and is associated with cellular stress *** review explores the molecular details and regulatory mechanisms of mitophagy and the cGAS-STING *** critically evaluate the literature demonstrating how dysfunctional mitophagy leads to neuroinflammatory conditions,primarily through the accumulation of damaged mitochondria,which activates the cGAS-STING *** activation prompts the production of pro-inflammatory cytokines,exacerbating *** review emphasizes the interaction between mitophagy and the cGAS-STING *** mitophagy may suppress the cGAS-STING pathway,offering protection against ***,impaired mitophagy may activate the cGAS-STING pathway,leading to chronic ***,we explored how this interaction influences neurodegenerative disorders,suggesting a common mechanism underlying these *** conclusion,there is a need for additional targeted research to unravel the complexities of mitophagy-cGAS-STING interactions and their role in *** review highlights potential therapies targeting these pathways,potentially leading to new treatments for neuroinflammatory and neurodegenerative *** synthesis enhances our understanding of the cellular and molecular foundations of neuroinflammation and opens new therapeutic avenues for neurodegenerative disease research.

关键词： Neuroinflammation Mitophagy cGAS-STING Innate immunity Mitochondrial DNA Crosstalk Therapeutic avenues Neurodegenerative diseases

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Influence of Trace Amount of Calponin on Smooth Muscle Myosin in Different States

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Acta Biochimica et Biophysica Sinica 2004年第8期36卷 529-536页

作者： Jing-Xian YANG, Xiao-Hua FENG, Ying ZHANG, and Yuan LIN department of Pharmacology, dalian medical university, dalian 116027, china department of Pharmacology Dalian Medical UniversityDalian 116027China

Calponin (CaP), a thin filament-associated protein, is thought to be involved in modulating smooth muscle contractile activity, but the role and mechanism keep unknown. In this study, trace amount of calponin (TAC) was found to obviously influence myosin in different states in Ca2+-independent manner, suggesting a high efficient interaction between TAC and myosin. In this assay, the lowest ratio of CaP vs. myosin was 1:10,000, with the concentration of CaP 10,000-fold lower than that used previously. Myosin phosphorylation, myosin Mg2+-ATPase activity and protein binding activity were detected to determine the effects of TAC on the myosin in different states. The amount of precipitated myosin that bound to TAC was used as the index to determine the interaction between myosin and TAC in binding assay. Our data showed that in the absence of actin, TAC significantly increased the precipitation of unphosphorylated myosin, Ca2+- dependently or independently phosphorylated myosin by MLCK, and stimulated the Mg2+-ATPase activities of these myosins slightly but significantly. However, no obvious change of precipitation of myosin phospho- rylated by PKA was observed, indicating the relatively selective effect of TAC. In the presence of actin, the increase of myosin precipitations was abolished, and no obvious change of actin precipitations and actin- activated myosin Mg2+-ATPase activities were observed implicating the high efficiency of TAC on myosin being present in the absence of actin. Although we can not give conclusive comments to our results, we propose that the high efficiency of TAC-myosin interaction is present when actin is dissociated from myosin, even if CaP/myosin ratio is very low; this high efficient interaction can be abolished by actin. However, why and how TAC can possess such a high efficiency to influence myosin and how the physiological significance of the high efficiency of TAC is in regulating the interaction between myosin and actin remain to be inve

关键词： trace amount of calponin protein binding phosphorylation myosin Mg2+-ATPase

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Activation of autophagy by Citri Reticulatae Semen extract ameliorates amyloid-beta-induced cell death and cognition deficits in Alzheimer’s disease

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Neural Regeneration Research 2024年第11期19卷 2467-2479页

作者： Yong Tang Jing Wei Xiao-Fang Wang Tao Long Xiaohong Xiang Liqun Qu Xingxia Wang Chonglin Yu Xingli Xiao Xueyuan Hu Jing Zeng Qin Xu Anguo Wu Jianming Wu dalian Qin Xiaogang Zhou Betty Yuen-Kwan Law Dr.Neher’s Biophysics Laboratory for Innovative Drug Discovery State Key Laboratory of Quality Research in Chinese MedicineMacao University of Science and TechnologyMacao Special Administrative RegionChina Sichuan Key medical Laboratory of New Drug Discovery and Druggability Evaluation Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica Southwest Medical UniversityLuzhouSichuan ProvinceChina Eye School and Key Laboratory of Sichuan province Ophthalmopathy Prevention&Cure and Visual Function Protection of Chengdu university of TCM ChengduSichuan ProvinceChina School of Basic medical Sciences Southwest Medical UniversityLuzhouSichuan ProvinceChina department of Ophthalmology The Affiliated Hospital of Southwest Medical UniversityLuzhouSichuan ProvinceChina department of Neurology The First People’s Hospital of NeijiangNeijiangSichuan ProvinceChina

Amyloid-beta-induced neuronal cell death contributes to cognitive decline in Alzheimer’s *** Reticulatae Semen has diverse beneficial effects on neurodegenerative diseases,including Parkinson’s and Huntington’s diseases,however,the effect of Citri Reticulatae Semen on Alzheimer’s disease remains *** the current study,the anti-apoptotic and autophagic roles of Citri Reticulatae Semen extract on amyloid-beta-induced apoptosis in PC12 cells were first *** Reticulatae Semen extract protected PC12 cells from amyloid-beta-induced apoptosis by attenuating the Bax/Bcl-2 ratio via activation of *** addition,Citri Reticulatae Semen extract was confirmed to bind amyloid-beta as revealed by biolayer interferometry in vitro,and suppress amyloid-beta-induced pathology such as paralysis,in a transgenic Caenorhabditis elegans in vivo ***,genetically defective Caenorhabditis elegans further confirmed that the neuroprotective effect of Citri Reticulatae Semen extract was *** importantly,Citri Reticulatae Semen extract was confirmed to improve cognitive impairment,neuronal injury and amyloid-beta burden in 3×Tg Alzheimer’s disease *** revealed by both in vitro and in vivo models,these results suggest that Citri Reticulatae Semen extract is a potential natural therapeutic agent for Alzheimer’s disease via its neuroprotective autophagic effects.

关键词： Alzheimer’s disease amyloid-beta apoptosis autophagy Caenorhabditis elegans Citri Reticulatae Semen

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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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Numerical simulation of soft palate movement and airflow in human upper airway by fluid-structure interaction method

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Acta Mechanica Sinica 2007年第4期23卷 359-367页

作者： Xiuzhen Sun Chi Yu Yuefang Wang Yingxi Liu State Key Lab.of Struct.Anal.for Ind.Equip.,dalian university of Technology,dalian 116024,china The Second Affiliated Hospital,dalian medical university,dalian 116027,china State Key Lab. of Struct. Anal. for Ind. Equip. Dalian University of Technology Dalian 116024 China The Second Affiliated Hospital Dalian Medical University Dalian 116027 China

In this paper, the authors present airflow field characteristics of human upper airway and soft palate movement attitude during breathing. On the basis of the data taken from the spiral computerized tomography images of a healthy person and a patient with Obstructive Sleep Apnea-Hypopnea Syndrome （OSAHS）, three-dimensional models of upper airway cavity and soft palate are reconstructed by the method of surface rendering. Numerical simulation is performed for airflow in the upper airway and displacement of soft palate by fluid-structure interaction analysis. The reconstructed threedimensional models precisely preserve the original configuration of upper airways and soft palate. The results of the pressure and velocity distributions in the airflow field are quantitatively determined, and the displacement of soft palate is presented. Pressure gradients of airway are lower for the healthy person and the airflow distribution is quite uniform in the case of free breathing. However, the OSAHS patient remarkably escalates both the pressure and velocity in the upper airway, and causes higher displacement of the soft palate. The present study is useful in revealing pathogenesis and quantitative mutual relationship between configuration and function of the upper airway as well as in diagnosingdiseases related to anatomical structure and function of the upper airway.

关键词： Obstructive sleep apnea-hypopnea syndrome Upper airway Soft palate Three-dimensional finiteelement reconstruction Fluid-structure interaction Numerical simulation

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Study on the pharmacokinetics of tea polyphenols injection in rat plasma

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沈阳药科大学学报 2008年第S1期25卷 100-101页

作者： FU Ting1,LIANG Jun1,HAN Guo-zhu1,Lü Li1,LI Nan2(1.department of Clinical Pharmacology,dalian medical university,dalian 116044,china 2.department of Analytical Chemistry,dalian university of Technology,dalian 116023,china)

Objective To study pharmacokinetics of the main active ingredients(-)Epigallocatechin-3-gallate(EGCG)and(-)Epicatechin-3-gallate(ECG)of tea polyphenols(TP)injection in *** EGCG and ECG in rat plasma were analyzed by reversed-phase HPLC,by which EGCG and ECG were eluted from a Kromasil C18 column with a linear gradient mobile phase consisting of CH3CN-0.1% citric acid at a gradient flow rate of 1.0-1.5 mL·min-1 and monitored at a wavelength of 280 *** rats were randomly divided into 3 groups of 5 animals receiving iv administration of TP injection,formulated with catechins-containing extract from green tea,at doses of 150,100 and 50 mg·kg-1,*** samples were collected pre-dosing and 2,5,10,20,40,60,90,120,180,240,300 min *** of obtained plasma(200 μL)were cleaned up by liquid-liquid extraction with double volumes of EtoAc and were reconstituted with 100 μL of 10% CH3CN aqueous solution before injecting to *** The time course of EGCG and ECG concentrations in rat plasma decayed in a biexponential *** iv pharmacokinetics could be described by the two-compartment model and first-order kinetics with t1/2β 112.39-145.20 min and 46.63-61.48 min,Vd 6.28-7.96 L·kg-1 and 0.90-1.22 L·kg-1,CL 0.034-0.044 L·kg-1·min-1 and 0.010-0.015 L·kg-1·min-1 for EGCG and ECG,*** The EGCG and ECG in plasma of rats administered *** injection pharmacokinetically behaved with linear kinetics over dose range *** two catechin derivatives undergo rapid elimination from rat *** compared with ECG,EGCG eliminates at a relatively slow rate,and is distributed very widely with a Vd greatly exceeding the volume of total body water,suggesting that EGCG is likely to enter the tissue cells or strongly bind to some tissues to exert its potent antioxidant *** aforementioned characteristics of EGCG may be due to its high lipophilicity.

关键词： pharmacokinetics HPLC tea polyphenols EGCG ECG

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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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Cloning and Characterization of Adinbitor,a Novel Disintegrin from the Snake Venom of Agkistrodon halys brevicaudus stejneger

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Acta Biochimica et Biophysica Sinica 2004年第6期36卷 425-429页

作者： Ji-Hong WANG, Yu WU, Feng REN, Li Lü, and Bao-Chang ZHAO*department of Biochemistry and Molecular Biology, dalian medical university, dalian 116027, china department of Biochemistry and Molecular Biology Dalian Medical UniversityDalian 116027 China

Adinbitor was cloned from Agkistrodon halys brevicaudus stejneger and characterized as a novel disintegrin. In this study, total RNA was extracted from venom gland and used in RT-PCR to generate a cDNA which is 219 bp long. The sequence encoded a polypeptide composed of 73 amino acids, including 12 cysteines, an RGD motif, and the signature motif of disintergrin. Recombinant Adinbitor (rAdinbitor) was expressed in E. coli and purified by using the His?Bind affinity chromatography. The IC50 for inhibiting human platelet aggregation and bFGF-induced proliferation of ECV304 cells was 6 μΜ and 0.89 μΜ respectively. Furthermore, Adinbitor significantly inhibited angiogenesis both in vivo and in vitro. Taken together, these results suggested that Adinbitor had typical functions of disintegrins.

关键词： cloning Adinbitor disintegrin platelet aggregation angiogenesis

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