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腱病相关概念与机制的争论 预览
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作者 刘春雨 韩小燕 王琳 《中国组织工程研究》 CAS 北大核心 2020年第2期282-288,共7页
背景:腱病是运动医学和康复领域的研究热点,但现有的研究长期以来在概念、机制及病理分期等方面存在着诸多争论。目的:对腱病相关的概念、炎症在腱病发生中的作用以及腱病的病理机制等问题进行系统的回顾与总结。方法:检索中国期刊网全... 背景:腱病是运动医学和康复领域的研究热点,但现有的研究长期以来在概念、机制及病理分期等方面存在着诸多争论。目的:对腱病相关的概念、炎症在腱病发生中的作用以及腱病的病理机制等问题进行系统的回顾与总结。方法:检索中国期刊网全文数据库(中国知网CNKI)、维普数据库、中国生物医学文献数据库(CBM)、中国医药学位论文全文数据库(万方)及PubMed数据库和Embase医药数据库,从腱病、腱止点、炎症、病理机制等几方面入手,检索了1990年以来一些相关的研究成果并进行了综述。结果与结论:对腱病概念的争论是建立在对其内部病理机制理解的基础之上的,而对腱病内部病理机制的理解将随着更多高质量研究的出现而不断被完善。对于腱病与炎症、腱病与负荷方式以及腱止点相关力学特点方面的研究将是以后值得关注的方向。 展开更多
关键词 腱病 腱止点 微细结构 细胞外基质 炎症 退化 概念 病理机制
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Inhibiting endogenous tissue plasminogen activator enhanced neuronal apoptosis and axonal injury after traumatic brain injury 预览
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作者 Jun-Jie Zhao Zun-Wei Liu +4 位作者 Bo Wang Ting-Qin Huang Dan Guo Yong-Lin Zhao Jin-Ning Song 《中国神经再生研究:英文版》 SCIE CAS CSCD 2020年第4期667-675,共9页
Tissue plasminogen activator is usually used for the treatment of acute ischemic stroke,but the role of endogenous tissue plasminogen activator in traumatic brain injury has been rarely reported.A rat model of traumat... Tissue plasminogen activator is usually used for the treatment of acute ischemic stroke,but the role of endogenous tissue plasminogen activator in traumatic brain injury has been rarely reported.A rat model of traumatic brain injury was established by weight-drop method.The tissue plasminogen activator inhibitor neuroserpin(5μL,0.25 mg/mL)was injected into the lateral ventricle.Neurological function was assessed by neurological severity score.Neuronal and axonal injuries were assessed by hematoxylin-eosin staining and Bielschowsky silver staining.Protein level of endogenous tissue plasminogen activator was analyzed by western blot assay.Apoptotic marker cleaved caspase-3,neuronal marker neurofilament light chain,astrocyte marker glial fibrillary acidic protein and microglial marker Iba-1 were analyzed by immunohistochemical staining.Apoptotic cell types were detected by immunofluorescence double labeling.Apoptotic cells in the damaged cortex were detected by terminal deoxynucleotidyl transferase-mediated digoxigenin-dUTP-biotin nick-end labeling staining.Degenerating neurons in the damaged cortex were detected by Fluoro-Jade B staining.Expression of tissue plasminogen activator was increased at 6 hours,and peaked at 3 days after traumatic brain injury.Neuronal apoptosis and axonal injury were detected after traumatic brain injury.Moreover,neuroserpin enhanced neuronal apoptosis,neuronal injury and axonal injury,and activated microglia and astrocytes.Neuroserpin further deteriorated neurobehavioral function in rats with traumatic brain injury.Our findings confirm that inhibition of endogenous tissue plasminogen activator aggravates neuronal apoptosis and axonal injury after traumatic brain injury,and activates microglia and astrocytes.This study was approved by the Biomedical Ethics Committee of Animal Experiments of Shaanxi Province of China in June 2015. 展开更多
关键词 apoptosis ASTROCYTES AXONAL INJURY inflammation microglia nerve REGENERATION neural REGENERATION neuronal INJURY neurons NEUROSERPIN tissue PLASMINOGEN activator traumatic brain INJURY
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Inflammation-related gene expression profiles of salivary extracellular vesicles in patients with head trauma 预览
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作者 Yan Cheng Mandy Pereira +10 位作者 Neha P.Raukar John L.Reagan Mathew Quesenberry Laura Goldberg Theodor Borgovan W Curt LaFrance Jr Mark Dooner Maria Deregibus Giovanni Camussi Bharat Ramratnam Peter Quesenberry 《中国神经再生研究:英文版》 SCIE CAS CSCD 2020年第4期676-681,共6页
At present,there is no reliable biomarker for the diagnosis of traumatic brain injury(TBI).Studies have shown that extracellular vesicles released by damaged cells into biological fluids can be used as potential bioma... At present,there is no reliable biomarker for the diagnosis of traumatic brain injury(TBI).Studies have shown that extracellular vesicles released by damaged cells into biological fluids can be used as potential biomarkers for diagnosis of TBI and evaluation of TBI severity.We hypothesize that the genetic profile of salivary extracellular vesicles in patients with head trauma differs from that in uninjured subjects.Findings from this hypothesis would help investigate the severity of TBI.This study included 19 subjects,consisting of seven healthy controls who denied history of head trauma,six patients diagnosed with concussion injury from an outpatient concussion clinic,and six patients with TBI who received treatment in the emergency department within 24 hours after injury.Real-time PCR analysis of salivary extracellular vesicles in participants was performed using TaqMan Human Inflammation array.Gene expression analysis revealed nine upregulated genes in emergency department patients(LOX5,ANXA3,CASP1,IL2RG,ITGAM,ITGB2,LTA4H,MAPK14,and TNFRSF1A)and 13 upregulated genes in concussion clinic patients compared with healthy participants(ADRB1,ADRB2,BDKRB1,HRH1,HRH2,LTB4R2,LTB4R,PTAFR,CYSLTR1,CES1,KLK1,MC2R,and PTGER3).Each patient group had a unique profile.Comparison between groups showed that 15 inflammation-related genes had significant expression change.Our results indicate that inflammation biomarkers can be used for diagnosis of TBI and evaluation of disease severity.This study was approved by the Institutional Review Board on December 18,2015(approval No.0078-12)and on June 9,2016(approval No.4093-16). 展开更多
关键词 chronic TRAUMATIC encephalopathy emergency department extracellular vesicles INFLAMMATION OUTPATIENT CONCUSSION clinic real-time PCR analysis SALIVA TRAUMATIC brain injury
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Harnessing the stem cell properties of pericytes to repair the brain 预览
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作者 Jo-Maree Courtney Brad A.Sutherland 《中国神经再生研究:英文版》 SCIE CAS CSCD 2020年第6期1021-1022,共2页
Over the last ten years or so,it has become apparent that pericytes have the potential to differentiate into other cell types which may help in the repair and regeneration of tissue after injury.In fact,pericytes have... Over the last ten years or so,it has become apparent that pericytes have the potential to differentiate into other cell types which may help in the repair and regeneration of tissue after injury.In fact,pericytes have been described as a precursor to mesenchymal stem cells.Their location at the interface between the microvasculature and the brain parenchyma means they are ideally positioned to initiate repair and regeneration in response to various factors.In this perspective,we will highlight how pericytes have stem cell potential alongside their role in regulating processes,such as angiogenesis and inflammation,and discuss how pericytes could be harnessed to promote tissue repair in the brain(Figure 1). 展开更多
关键词 PERICYTE INFLAMMATION FIGURE
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Genetic targeting of astrocytes to combat neurodegenerative disease 预览
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作者 Rachel Kéry Allen P. F. Chen Gregory W. Kirschen 《中国神经再生研究:英文版》 SCIE CAS CSCD 2020年第2期199-211,共13页
Astrocytes, glial cells that interact extensively with neurons and other support cells throughout the central nervous system, have recently come under the spotlight for their potential contribution to, or potential re... Astrocytes, glial cells that interact extensively with neurons and other support cells throughout the central nervous system, have recently come under the spotlight for their potential contribution to, or potential regenerative role in a host of neurodegenerative disorders. It is becoming increasingly clear that astrocytes, in concert with microglial cells, activate intrinsic immunological pathways in the setting of neurodegenerative injury, although the direct and indirect consequences of such activation are still largely unknown. We review the current literature on the astrocyte’s role in several neurodegenerative diseases, as well as highlighting recent advances in genetic manipulation of astrocytes that may prove critical to modulating their response to neurological injury, potentially combatting neurodegenerative damage. 展开更多
关键词 Alzheimer's DISEASE amyotrophic lateral SCLEROSIS GLIA immune system inflammation Parkinson's DISEASE reactive ASTROCYTE regeneration
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脑心清对脑缺血再灌注损伤模型大鼠的保护机制 预览
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作者 闵冬雨 李红岩 +5 位作者 关乐 常江 张海宁 崔馨月 王鹏 曹永刚 《中国组织工程研究》 CAS 北大核心 2020年第2期215-222,共8页
背景:脑心清胶囊用于脑缺血再灌注损伤的治疗由来已久,然而针对其作用机制的深入研究则相对较少。目的:应用分子生物学手段考察脑心清胶囊对脑缺血再灌注损伤沙鼠模型的治疗作用。方法:实验方案经辽宁中医药大学动物实验伦理委员会批准... 背景:脑心清胶囊用于脑缺血再灌注损伤的治疗由来已久,然而针对其作用机制的深入研究则相对较少。目的:应用分子生物学手段考察脑心清胶囊对脑缺血再灌注损伤沙鼠模型的治疗作用。方法:实验方案经辽宁中医药大学动物实验伦理委员会批准(批准号为21000092017072)。将80只雄性蒙古沙鼠随机分为假手术组、模型组、脑心清组及脑络通组,后3组沙鼠应用无创微动脉夹同时夹闭双侧颈总动脉5 min后松开,建立脑缺血再灌注损伤模型;假手术组不夹闭双侧颈总动脉。术后次日开始假手术组正常饲养,模型组灌服同体积的生理盐水,脑心清组按照100 mg/(kg?d)灌胃给药,脑络通组按照100 mg/(kg?d)灌胃给药,连续给药21 d。在实验结束前1周进行水迷宫实验,实验结束后麻醉下处死沙鼠取脑组织。检测沙鼠的学习记忆功能、海马神经元、脑血管及对应的分子变化情况。结果与结论:①同假手术组相比,模型组沙鼠学习能力显著下降。而脑心清组及脑络通组则可有效提升术后的学习能力下降趋势;②与模型组相比,脑心清组及脑络通组神经元显著增多,且排列较为整齐,细胞轮廓清晰,结构完整;③与模型组相比,脑心清组及脑络通组沙鼠的超氧化物歧化酶和乳酸脱氢酶活性,谷胱甘肽含量显著升高,丙二醛含量显著降低(P<0.01);④与模型组相比,脑心清组及脑络通组沙鼠海马组织ASC、NLRP3和Caspase-1蛋白表达下调(P<0.05);⑤与模型组相比,脑心清组及脑络通组沙鼠的白细胞介素18和白细胞介素1β含量明显降低(P<0.01);⑥与模型组相比,脑心清组及脑络通组沙鼠的血小板内皮细胞黏附分子1阳性细胞明显增多,细胞间连接紧密;⑦与模型组相比,脑心清组及脑络通组沙鼠海马组织血小板内皮细胞黏附分子1和磷酸化内皮型一氧化氮合酶表达显著上调,一氧化氮含量显著升高(P<0.01);⑧结果说明,脑心 展开更多
关键词 脑心清胶囊 脑缺血再灌注 氧化应激 炎症 脑血管功能 细胞焦亡
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miR-150-5p抑制TLR-5/NF-κB p65信号通路对大脑中动脉阻塞 模型大鼠的神经保护效应 预览
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作者 谢媛媛 张延军 张晓曼 《中国组织工程研究》 CAS 北大核心 2020年第2期223-229,共7页
背景:缺血性脑梗死的病变组织中发生炎症反应,且miR-150-5p表达明显下降,miR-150-5p是否经Toll样受体5/核因子κB途径抑制炎症因子释放并减轻缺血性脑梗死组织损伤尚不清楚。目的:探讨微小RNA-150-5p(miR-150-5p)在大鼠缺血性脑梗死中... 背景:缺血性脑梗死的病变组织中发生炎症反应,且miR-150-5p表达明显下降,miR-150-5p是否经Toll样受体5/核因子κB途径抑制炎症因子释放并减轻缺血性脑梗死组织损伤尚不清楚。目的:探讨微小RNA-150-5p(miR-150-5p)在大鼠缺血性脑梗死中的作用及初步机制。方法:①构建大脑中动脉阻塞模型大鼠,建模后将大鼠分为5组:对照组、miR-150-5p agomir组、agomir control、miR-150-5p antagomir组和antagomir control组;②对照组大鼠给予生理盐水脑室注射,后4组大鼠脑室分别给予miR150-5p agomir(miR150-5p激动剂)、agomir阴性对照、miR150-5p antagomir(miR150-5p抑制剂)和antagomir阴性对照;③干预7 d后进行神经功能缺损程度(mNNS)评分,磁共振检测法测量脑梗死体积,苏木精-伊红染色观察脑组织病理学变化,qRT-qPCR法、ELISA法和免疫印迹法检测分别检测脑组织中miR-150-5p、白细胞介素6、肿瘤坏死因子α、Toll样受体5和核因子κB p65表达情况,通过检索生物信息学网站Targetscan预测miR-150-5p与Toll样受体5的结合位点,荧光素酶试验验证二者的靶向关系。结果与结论:①与对照组比较,miR-150-5p agomir组大鼠神经功能损伤评分、脑组织中白细胞介素6、肿瘤坏死因子α水平及Toll样受体5、核因子κB p65蛋白表达明显降低(P<0.05);miR-150-5p antagomir组生理评分及生化指标均明显升高(P<0.05);②苏木精-伊红染色显示,对照组神经细胞排列紊乱、轮廓模糊不清,神经细胞明显变性坏死;上述病理变化在miR-150-5p agomir组明显减轻,而在miR-150-5p antagomir组中明显加重。而agomir control组和antagomir control组与对照组各指标比较差异均无显著差异(P>0.05);③TargerScan网站预测结果和荧光素酶报告基因分析显示,miR-150-5p与Toll样受体5存在靶向结合位点;④结果证实,miR-150-5p可抑制缺血所致脑损伤过程中Toll样受体5/核因子κB p65炎性信号通路,降低炎性反应,从而减轻 展开更多
关键词 miR-150-5p Toll样受体5/核因子κB p65通路 炎症 缺血性脑梗死 神经功能 脑梗死体积 生物信息学 组织工程
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Natural stilbenes effects in animal models of Alzheimer’s disease 预览
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作者 Aline Freyssin Guylène Page +1 位作者 Bernard Fauconneau Agnès Rioux Bilan 《中国神经再生研究:英文版》 SCIE CAS CSCD 2020年第5期843-849,共7页
Alzheimer’s disease is one of the most frequent neurodegenerative diseases.This pathology is characterized by protein aggregates,mainly constituted by amyloid peptide and tau,leading to neuronal death and cognitive i... Alzheimer’s disease is one of the most frequent neurodegenerative diseases.This pathology is characterized by protein aggregates,mainly constituted by amyloid peptide and tau,leading to neuronal death and cognitive impairments.Drugs currently proposed to treat this pathology do not prevent neurodegenerative processes and are mainly symptomatic therapies.However,stilbenes presenting multiple pharmacological effects could be good potential therapeutic candidates.The aim of this review is to gather the more significant papers among the broad literature on this topic,concerning the beneficial effects of stilbenes (resveratrol derivatives) in animal models of Alzheimer’s disease.Indeed,numerous studies focus on cellular models,but an in vivo approach remains of primary importance since in animals (mice or rats,generally),bioavailability and metabolism are taken into account,which is not the case in in vitro studies.Furthermore,examination of memory ability is feasible in animal models,which strengthens the relevance of a compound with a view to future therapy in humans.This paper is addressed to any researcher who needs to study untested natural stilbenes or who wants to experiment the most effective natural stilbenes in largest animals or in humans.This review shows that resveratrol,the reference polyphenol,is largely studied and seems to have interesting properties on amyloid plaques,and cognitive impairment.However,some resveratrol derivatives such as gnetin C,trans-piceid,or astringin have never been tested on animals.Furthermore,pterostilbene is of particular interest,by its improvement of cognitive disorders and its neuroprotective role.It could be relevant to evaluate this molecule in clinical trials. 展开更多
关键词 Alzheimer's disease AMYLOID animal models cognitive impairment inflammation NATURAL STILBENES NEUROPROTECTION RESVERATROL tau
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Orexin/hypocretinin in multiple sclerosis and experimental autoimmune encephalomyelitis 预览
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作者 Jean Pierre Pallais Catherine M.Kotz Milos Stanojlovic 《中国神经再生研究:英文版》 SCIE CAS CSCD 2020年第6期1039-1040,共2页
Multiple sclerosis(MS)is a T-cell-mediated autoimmune disease of the central nervous system(CNS).Worldwide,more than 2.3 million people are diagnosed with MS.Since its clinical manifestations appear typically in the t... Multiple sclerosis(MS)is a T-cell-mediated autoimmune disease of the central nervous system(CNS).Worldwide,more than 2.3 million people are diagnosed with MS.Since its clinical manifestations appear typically in the third and fourth decades of life,MS is a major cause of neurological disability in young adults and has wide health,psychological,economic,and social consequences.There are three key pathological features of MS:inflammation;demyelination and oligodendrocyte loss;axonal loss and neurodegeneration.There are two main hypotheses regarding mechanisms of MS pathology.The“outside-in”concept is an older,widely recognized hypothesis that describes neurodegeneration as a consequence of inflammatory induced demyelination,which is caused by immune system activation(Lassmann et al.,2012).Mechanisms of T-cell mediated myelin destruction are extensively studied,but the manner by which the immune system perceives myelin as foreign. 展开更多
关键词 AUTOIMMUNE SCLEROSIS INFLAMMATION
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Comparative proteomes change and possible role in different pathways of micro RNA-21a-5p in a mouse model of spinal cord injury 预览
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作者 Almaghalsa-Ziad Mohammed Hong-Xia Du +3 位作者 Hong-Liang Song Wei-Ming Gong Bin Ning Tang-Hong Jia 《中国神经再生研究:英文版》 SCIE CAS CSCD 2020年第6期1102-1110,共9页
Our previous study found that microRNA-21 a-5 p(miR-21 a-5 p)knockdown could improve the recovery of motor function after spinal cord injury in a mouse model,but the precise molecular mechanism remains poorly understo... Our previous study found that microRNA-21 a-5 p(miR-21 a-5 p)knockdown could improve the recovery of motor function after spinal cord injury in a mouse model,but the precise molecular mechanism remains poorly understood.In this study,a modified Allen's weight drop was used to establish a mouse model of spinal cord injury.A proteomics approach was used to understand the role of differential protein expression with miR-21 a-5 p knockdown,using a mouse model of spinal cord injury without gene knockout as a negative control group.We found that after introducing miR-21 a-5 p knockdown,proteins that played an essential role in the regulation of inflammatory processes,cell protection against oxidative stress,cell redox homeostasis,and cell maintenance were upregulated compared with the negative control group.Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis identified enriched pathways in both groups,such as the oxidative phosphorylation pathway,which is relevant to Parkinson's disease,Huntington's disease,Alzheimer's disease,and cardiac muscle contraction.We also found that miR-21 a-5 p could be a potential biomarker for amyotrophic lateral sclerosis,as miR-21 a-5 p becomes deregulated in this pathway.These results indicate successful detection of some important proteins that play potential roles in spinal cord injury.Elucidating the relationship between these proteins and the recovery of spinal cord injury will provide a reference for future research of spinal cord injury biomarkers.All experimental procedures and protocols were approved by the Experimental Animal Ethics Committee of Shandong University of China on March 5,2014. 展开更多
关键词 BIOINFORMATICS biomarker inflammation micro RNA MITOCHONDRIA MOUSE pathway analysis PROTEOMICS spinal cord injury STATHMIN
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Highlights of ASS234:a novel and promising therapeutic agent for Alzheimer’s disease therapy 预览
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作者 Alejandro Romero JoséMarco-Contelles Eva Ramos 《中国神经再生研究:英文版》 SCIE CAS CSCD 2020年第1期30-35,共6页
There is no effective treatment to face Alzheimer’s disease complexity.Multitarget molecules are a good approach against the multiple physiopathological events associated with its development and progression.In this ... There is no effective treatment to face Alzheimer’s disease complexity.Multitarget molecules are a good approach against the multiple physiopathological events associated with its development and progression.In this context,N-((5-(3-(1-benzylpiperidin-4-yl)propoxy)-1-methyl-1H-indol-2-yl)methyl)-N-methylprop-2-yn-1-amine(ASS234)has been tested achieving promising results.ASS234 has demonstrated to cross the blood-brain barrier in vivo,and a good in silico safety profile being less toxic than donepezil.Besides,ASS234 reversibly inhibits human acetyl-and butyryl-cholinesterase,and irreversibly inhibits human monoamine oxidase A and B.Moreover,this multitarget molecule has antioxidant and neuroprotective properties,and inhibitsΑβ1–42 andΑβ1–40 self-aggregation.Inquiring about the mechanism of action,several signaling pathways related to Alzheimer’s disease had been explored showing that ASS234 induces the wingless-type MMTV integration site(Wnt)family and several members of the heat shock proteins family and moreover counteracts neuroinflammatory and oxidative stress-related genes promoting the induction of several key antioxidant genes.Finally,in vivo experiments with ASS234 in C57BL/6J mice displayed its ability to reduce amyloid plaque burden and gliosis in the cortex and hippocampus,ameliorating scopolamine-induced learning deficits.Here we gather the information regarding ASS234 evaluated so far,showing its ability to face different targets,necessary to counteract a neurodegenerative disease as complex as the Alzheimer’s disease. 展开更多
关键词 ACHE BuChE gene expression heat shock proteins inflammation in silico TOXICOLOGY MAO A/B NEUROPROTECTION oxidative stress Wnt signaling
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miR-155干预烧伤急性肺损伤模型大鼠:核转录因子κB通路的变化 预览
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作者 黎鸿章 杨坤 +3 位作者 刘玉文 刘攀 邱波 邹杰 《中国组织工程研究》 CAS 北大核心 2020年第2期204-208,共5页
背景:目前有研究关注核转录因子κB通路在烧伤大鼠急性肺损伤病理过程中的作用及机制,如miR-155靶向抑制KB激酶,进而减弱核转录因子κB活性,在烧伤大鼠急性肺损伤发挥作用,然而仍存在病理机制有待研究和确认。目的:观察miR-155通过核转... 背景:目前有研究关注核转录因子κB通路在烧伤大鼠急性肺损伤病理过程中的作用及机制,如miR-155靶向抑制KB激酶,进而减弱核转录因子κB活性,在烧伤大鼠急性肺损伤发挥作用,然而仍存在病理机制有待研究和确认。目的:观察miR-155通过核转录因子κB通路对烧伤大鼠急性肺损伤的影响。方法:采用温水水浴模拟烫伤法建立烧伤急性肺损伤大鼠模型,将烧伤大鼠随机分为烧伤急性肺损伤组、miR-155增强试剂组和miR-155抑制试剂组,液体复苏后,miR-155增强试剂组、miR-155抑制试剂组大鼠分别尾静脉注入5μL的miR-155-mimics和miR-155-inhibitions。酶联免疫吸附剂测定肺泡灌洗液中肿瘤坏死因子α、白细胞介素1β的变化情况;苏木精-伊红染色法观察3组肺组织形态变化;Western blot法检测核转录因子κB及环氧化酶2蛋白表达;免疫组织化学染色检测肺组织核转录因子κB蛋白表达。结果与结论:①苏木精-伊红染色结果表明,miR-155抑制试剂组、烧伤急性肺损伤组及miR-155增强试剂组肺组织损伤程度,逐渐加重(P<0.05);②酶联免疫吸附实验结果表明,与烧伤急性肺损伤组相比,miR-155增强试剂组肿瘤坏死因子α、白细胞介素1β表达增加(P<0.05),而miR-155抑制试剂组肿瘤坏死因子α、白细胞介素1β表达降低(P<0.05);③Western结果表明,与烧伤急性肺损伤组相比,miR-155增强试剂组核转录因子κB、环氧化酶2蛋白表达增加(P<0.05),而miR-155抑制试剂组核转录因子κB、环氧化酶2蛋白表达降低(P<0.05);④免疫组织化学染色结果显示,miR-155抑制试剂组核转录因子κB蛋白表达增强,呈深棕色,中性粒细胞、单核巨噬细胞、肺泡上皮细胞的胞质及胞核内核转录因子κB表达最明显;⑤上述数据证实,肺组织细胞中核转录因子κB活性降低,可以通过下调miR-155来实现,从而降低肺损伤组织间的炎症反应。实验于2018年6月经内江市第一人 展开更多
关键词 MIR-155 大鼠 急性肺损伤 模型 核转录因子ΚB 环氧化酶2 炎症 白细胞介素1Β 肿瘤坏死因子α 苏木精-伊红染色
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The multifaceted potential of the lipid transmitter oleoylethanolamide to treat alcohol-induced neuroinflammation and alcohol use disorders 预览
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作者 Laura Orio 《中国神经再生研究:英文版》 SCIE CAS CSCD 2020年第1期71-72,共2页
Is there a need for new pharmacotherapies to treat alcohol use disorders(AUDs)?AUD is a highly prevalent condition in the world population that causes medical,psychological,personal,social and economic problems.The mo... Is there a need for new pharmacotherapies to treat alcohol use disorders(AUDs)?AUD is a highly prevalent condition in the world population that causes medical,psychological,personal,social and economic problems.The most severe dimension of AUDs is alcohol dependence,a condition in which individuals lose control over alcohol intake despite the negative consequences.Although some medications have been approved for this purpose,existing pharmacotherapies are not effective for all people due to the heterogeneity of AUDs.Current approved medications include:Disulfiram(Antabuse^?),which induces an aversion to drink by increasing alcohol metabolism-derived acetaldehyde;Naltrexone(ReVia^?,Vivitrol^?),a competitive opioid antagonist forμ-receptors that decreases heavy drinking and prevents relapse;Acamprosate(Campral^?),an indirect partial agonist at N-methyl-D-aspartic acid glutamate receptors and antagonist at metabotropic glutamate receptors that is used to prevent relapse in detoxified alcoholics. 展开更多
关键词 metabolism inflammation ALCOHOL
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不同浓度硫化氢对肠上皮细胞炎症、线粒体功能和氧化应激的影响 预览
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作者 张夏薇 慕春龙 朱伟云 《南京农业大学学报》 CAS CSCD 北大核心 2020年第1期157-163,共7页
[目的]本试验使用硫氢化钠(NaHS,硫化氢供体)处理Caco-2细胞,研究硫化氢(H2S)对肠上皮细胞炎症、氧化应激和线粒体硫化物代谢功能的影响,探究H 2S影响肠道健康的可能机制。[方法]试验分为4个组,分别为对照组、低(0.1 mmol·L^-1)、... [目的]本试验使用硫氢化钠(NaHS,硫化氢供体)处理Caco-2细胞,研究硫化氢(H2S)对肠上皮细胞炎症、氧化应激和线粒体硫化物代谢功能的影响,探究H 2S影响肠道健康的可能机制。[方法]试验分为4个组,分别为对照组、低(0.1 mmol·L^-1)、中(1 mmol·L^-1)、高(2 mmol·L^-1)浓度的NaHS组,处理24 h后测定各组细胞活力、炎症细胞因子基因表达、硫化物代谢酶基因表达和氧化应激指标。[结果]与对照组相比,NaHS能够增强肠上皮细胞活力,2 mmol·L^-1 NaHS显著上调肿瘤坏死因子α(TNF-α)的基因表达水平(P<0.05),0.1 mmol·L^-1 NaHS上调线粒体硫化物代谢酶硫醌氧化还原酶(SQR)、硫代硫酸盐硫转移酶(TST)、硫双加氧酶(ETHE1)和亚硫酸氧化酶(SUOX)的基因表达,而2mmol·L-1 NaHS下调SQR的基因表达,显著提高丙二醛(MDA)、谷胱甘肽(GSH)含量和谷胱甘肽过氧化物酶(GPx)活性(P<0.05),显著降低超氧化物歧化酶(SOD)活性(P<0.05),0.1mmol·L^-1 NaHS显著提高MDA含量(P<0.05),1mmol·L^-1 NaHS则显著降低SOD活性(P<0.05)。[结论]低浓度H 2S能增强细胞活力,提高线粒体硫化物代谢能力和氧化应激水平。高浓度H 2S能促进炎症反应,提高氧化应激水平,影响线粒体硫化物代谢能力,可能对肠道健康产生不利影响。 展开更多
关键词 硫化氢 氧化应激 炎症 线粒体
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Cadmium Toxicity: Oxidative Stress, Inflammation and Tissue Injury 预览
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作者 Sandra Concepcion Das Hamda A. Al-Naemi 《职业病与环境医学(英文)》 2019年第4期144-163,共20页
Cadmium is a known environmental pollutant targeting various organs. Often implicated in cadmium toxicology is the formation of reactive oxygen species, overwhelming the free radical scavenging mechanisms and inducing... Cadmium is a known environmental pollutant targeting various organs. Often implicated in cadmium toxicology is the formation of reactive oxygen species, overwhelming the free radical scavenging mechanisms and inducing oxidative stress. Acute cadmium intoxication has been shown to reduce antioxidant enzyme activity and induce oxidative stress. However, chronic intoxication has obscure outcomes in oxidative stress while the cell makes adjustments to overcome the toxicant load. Also linked with the occurrence of oxidative stress is inflammation. Stimulation of acute or chronic inflammation is mediated by different cascades. However, key events include activation of transcription factor, NF-κB and release of pro-inflammatory cytokines. Both oxidative stress and inflammation are implicated simultaneously in pathogenesis and induction of multi-organ tissue damage under cadmium exposure. This article reviews the impact of acute and chronic cadmium intoxication on inducing oxidative stress, inflammation and thereby inflicting tissue damage. 展开更多
关键词 CADMIUM INFLAMMATION TISSUE INJURY
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The Level and Role of Interleukin-17 in Patients of Type 2 Diabetes Mellitus with and without Complications 预览
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作者 Ashirbad Parhi Sidhartha Das +4 位作者 Srikrushna Mahapatra Nikhilesh Pradhan Manoranjan Behera Bijan Patnaik Roma Rattan 《糖尿病(英文)》 2019年第4期176-185,共10页
Background: Type 2 Diabetes Mellitus (T2DM) is the most prevalent metabolic disorder in the world. Recent evidence however suggests that T2DM is not only a disease of metabolism, but also an inflammatory disorder and ... Background: Type 2 Diabetes Mellitus (T2DM) is the most prevalent metabolic disorder in the world. Recent evidence however suggests that T2DM is not only a disease of metabolism, but also an inflammatory disorder and that inflammation also plays an important role in the pathogenesis of Diabetic complications. Our aim was to study the level of interleukin-17 (IL 17) in Indian populations with T2DM as an inflammatory marker and analyze its role in different diabetic complications. Methods: A total of consecutive 67 patients of T2DM were evaluated for clinical parameters fasting blood glucose (FBG), 2hr-post-prandial blood glucose (PPBG), lipid profile, HbA1c and plasma IL 17. They were divided into three groups—Patients of T2DM without any complications (group A;n = 24), T2DM with acute complications (group B;n = 20), T2DM with chronic complications (group C;n = 23) and compared with 23 healthy controls (group D). Results: Diabetic patients had a higher level of IL 17 as compared to the healthy controls. The level of IL 17 in complicated diabetics was higher than the patients with T2DM without complications. Multiple logistic regression analysis showed positive correlation of IL 17 with Diabetic Retinopathy and Diabetic Neuropathy. IL 17 also showed a positive Pearsons correlation with systolic blood pressure (SBP), diastolic blood pressure (DBP), serum triglycerides (TG), serum total cholesterol (TC), very low density lipoproteins (VLDL), low density lipoproteins (LDL), HbA1c and a negative correlation with HDL. Conclusion: Indian subjects with T2DM with or without complications had higher values of IL 17 as compared to healthy controls. Also diabetic neuropathy and diabetic retinopathy were positively correlated to levels of IL 17. Further levels of IL 17 were positively correlated to hypertension and dyslipidemia indicating a prevalent inflammatory state in our population of T2DM with and without complications. 展开更多
关键词 IL-17 INFLAMMATION INTERLEUKINS
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Oxidative Stress and Inflammation 预览
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作者 Samreen Soomro 《免疫学期刊(英文)》 2019年第1期1-20,共20页
Inflammation is a part of the complex biological response of vascular tissues to harmful stimuli. Debilitating diseases such as atherosclerosis, rheumatoid arthritis, and even cancer are the biggest pharmacological hu... Inflammation is a part of the complex biological response of vascular tissues to harmful stimuli. Debilitating diseases such as atherosclerosis, rheumatoid arthritis, and even cancer are the biggest pharmacological hurdles of today. Targeting inflammation is a broad task, since many mediators are involved in onset of particular disease. Among these many mediators, the reactive oxygen and nitrogen species generated by macrophages and neutrophils are of great interest because of their major contribution in establishment of chronic inflammation and cancer. This review elaborates the pathogenesis of inflammation based on involvement of reactive oxygen and nitrogen species and the activation of signalling cascades in response to oxidative stress. Understanding this would eventually give a clue for target based therapeutic approach in search of new effective anti-inflammatory drugs. 展开更多
关键词 OXIDATIVE Stress NITRIC OXIDE ROS NFKB INFLAMMATION
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Chemopreventive and Anti-Inflammatory Potential of Select Herbal Teas and Cinnamon in an <i>In-Vitro</i>Cell Model 预览
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作者 Shantrell Willis Rajitha Sunkara +3 位作者 Fredreana Hester Louis Shackelford Lloyd T. Walker Martha Verghese 《食品与营养科学(英文)》 2019年第9期1142-1156,共15页
Colon cancer is the third leading cause of death in the US. Herbal teas and spices may reduce the incidence of chronic diseases, including colon cancer. The objectives of this study were to determine the chemopreventi... Colon cancer is the third leading cause of death in the US. Herbal teas and spices may reduce the incidence of chronic diseases, including colon cancer. The objectives of this study were to determine the chemopreventive effects of herbal teas and cinnamon in an in-vitro cell model and to evaluate the inhibitory effects of selected extracts on enzymes associated with inflammatory disease. Effects of raspberry leaf (0.5 - 2.0 mg/mL), strawberry leaf (0.4 - 1.0 mg/mL), hibiscus flower (4.0 - 10.0 mg/mL) and cinnamon (400 - 1500 μg/mL) were evaluated for cytotoxicity, induction of caspase and DNA fragmentation in colon cancer (Caco-2) cells to determine possible chemopreventive effects. Effects of extracts on inhibition of cyclooxygenase-2 (COX-2) were also measured to determine possible anti-inflammatory potential. Caco-2 cells were obtained from American Type Culture Collection (ATCC) and maintained in Dulbecco’s Modified Eagle’s Medium with 10% fetal bovine serum. As concentrations of tea increased, LDH release from Caco-2 cells increased, with cytotoxicity ranging from 1% - 80% (hibiscus flower 1.0 mg/mL and strawberry leaf (1.0 mg/mL) for teas. All extract concentrations of herbal teas and cinnamon were able to enhance caspase-3 activity with lowest activity (4.4 mmol/ min/mL) observed in the lowest concentration of cinnamon (400 μg/mL) and highest activity (6.0 mmol/min/mL) seen in the highest concentration of raspberry leaf (2 mg/mL). Tea and spice extracts were able to induce apoptosis in Caco-2 cells exhibited by increased DNA fragmentation (expressed as enrichment factor). Enrichment factor ranged from 1.0 - 1.5 (raspberry leaf 1.0 mg/mL and hibiscus 10.0 mg/mL). Teas and cinnamon exhibited anti-inflammatory potential by inhibiting COX-2 by 0.6% - 8.0% (raspberry leaf 1.0 mg/mL and strawberry leaf 0.8 mg/mL). The results suggest that herbal teas and cinnamon may have significant benefits in chemoprevention. 展开更多
关键词 Colon Cancer Inflammation Herbal Tea Cell Culture
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Exosomes in Sepsis Diagnosis and Treatment 预览
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作者 Min Huang Huan Deng +2 位作者 Jiang Li Xingyu Tao Baohui Jia 《临床医学国际期刊(英文)》 2019年第10期565-575,共11页
Sepsis has been redefined as a disorder of host response to infection, systemic circulation and cell/metabolic abnormalities. Exosomes are small (30 - 150 nm) vesicles produced by all cells under physiological and pat... Sepsis has been redefined as a disorder of host response to infection, systemic circulation and cell/metabolic abnormalities. Exosomes are small (30 - 150 nm) vesicles produced by all cells under physiological and pathological conditions, with the potential to transfer proteins, lipids, small RNAs, messenger RNAs, or DNA between cells. Exosomes are natural cargoes for proteins, carbohydrates, nucleic acids and lipids. Exosomes play a central role in cellular communication and contribute to many pathophysiological processes, including immune responses and tumor progression. Exosomes have made great progress in many subject areas, and their potential role in sepsis is now being explored. In this review, several topics are mentioned. Firstly, we discuss the biological characteristics and functions of exosomes. Next, we focus on the diagnostic and therapeutic potential of exosomes in sepsis. Finally, we discuss some of the problems encountered by the current exosomes research institute. Therefore, the exosomes with combined diagnostic and therapeutic functions play a huge clinical application for the future research in sepsis. 展开更多
关键词 EXOSOMES SEPSIS BIOLOGICAL Function TARGETED VECTOR INFLAMMATION
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Targeting the Inflammation Culprit in Patients with Psoriasis/Psoriatic Arthritis and Associated Cardiovascular Comorbidities. Is the IL-17 Inhibitor the New Kid on the Block? 预览
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作者 Cornel Pater 《心血管病(英文)》 2019年第4期267-294,共28页
Despite half-century old, but comprehensive national and international guidance, evidence of clinical effectiveness and widespread agreement on management of risk factors along with sophisticated measures for primary ... Despite half-century old, but comprehensive national and international guidance, evidence of clinical effectiveness and widespread agreement on management of risk factors along with sophisticated measures for primary and secondary prevention of major cardiovascular events, cardiovascular disease remains the dominant cause of death and disability world-wide. Life style changes at population-level (e.g., lower salt and saturated fat consumption or reduced/banned amount of industrially-produced trans fatty acids in specific products, etc.) or changes at individual level (e.g., targeting modifiable risk factors/life style changes affecting smoking/tobacco use, poor diet, high blood cholesterol, high blood pressure, insufficient physical activity, overweight/obesity) have reduced coronary heart disease mortality to variable extent in different countries (mostly so reported in Finland, Iceland and Sweden) at the beginning of the new century. Overall, however, cardiovascular mortality is estimated to increase in the next coming years until 2030 at a cost exceeding US $1044 billion. Several decades of status quo are also noted in the therapeutic spectrum of cardiovascular disease, mainly consisting of variations to LDL-C lowering agents, antihypertensives, anticoagulants, antiplatelets and fibrinolytics. Most of the therapeutic interventions are “tertiary” in nature (probably some 60%), meaning that treatment is instituted once the individual has developed a pathologic condition;“secondary prevention” may cover some 25%?-?30% (meant to prevent re-occurrence of the condition or occurrence of complications) while “primary prevention” is left with 10%?-?15% share (most commonly implying life style changes at individual level and rarely pharmacological intervention). For almost three decades, the so-called inflammatory hypothesis has been promoted as a reasonable pathogenetic theory behind initiation and growth of atherosclerotic plaque (Alexander RW, 1994;Ross R, 1999). With the discovery of molecular and cellul 展开更多
关键词 PSORIASIS Psoriatic Arthritis CARDIOVASCULAR COMORBIDITIES INFLAMMATION Cy-tokines IL-17
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