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1.
Objective:To investigate whether blood-brain barrier(BBB)served a key role in the edema-relief effect of bloodletting puncture at hand twelve Jing-well points(HTWP)in traumatic brain injury(TBI)and the potential molecular signaling pathways.Methods:Adult male Sprague-Dawley rats were assigned to the shamoperated(sham),TBI,and bloodletting puncture(bloodletting)groups(n=24 per group)using a randomized number table.The TBI model rats were induced by cortical contusion and then bloodletting puncture were performed at HTWP twice a day for 2 days.The neurological function and cerebral edema were evaluated by modified neurological severity score(mNSS),cerebral water content,magnetic resonance imaging and hematoxylin and eosin staining.Cerebral blood flow was measured by laser speckles.The protein levels of aquaporin 4(AQP4),matrix metalloproteinases 9(MMP9)and mitogen-activated protein kinase pathway(MAPK)signaling were detected by immunofluorescence staining and Western blot.Results:Compared with TBI group,bloodletting puncture improved neurological function at 24 and 48 h,alleviated cerebral edema at 48 h,and reduced the permeability of BBB induced by TBI(all P<0.05).The AQP4 and MMP9 which would disrupt the integrity of BBB were downregulated by bloodletting puncture(P<0.05 or P<0.01).In addition,the extracellular signal-regulated kinase(ERK)and p38 signaling pathways were inhibited by bloodletting puncture(P<0.05).Conclusions:Bloodletting puncture at HTWP might play a significant role in protecting BBB through regulating the expressions of MMP9 and AQP4 as well as corresponding regulatory upstream ERK and p38 signaling pathways.Therefore,bloodletting puncture at HTWP may be a promising therapeutic strategy for TBI-induced cerebral edema.  相似文献   

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药理学是研究药物与机体相互作用、作用机制及规律的科学,是连接基础医学与临床医学、医学与药学的一门重要课程.许多学生在初次学习药理学时,认为药理学不好学,内容复杂、抽象,药物种类较多,抓不住重点,难以记忆,不知道怎样学习药理学,现就这些问题谈谈学习药理学的方法.  相似文献   

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抗冻蛋白(antifreeze protein,AFP)是一类结构多样的蛋白质,具有热滞效应(thermal hysteresis,TH,降低冰点而不改变熔点)和重结晶抑制效应(recrystalization inhabition,RI).通过非共价吸附抑制机制吸附到冰核表面,限制冰晶生长和抑制冰晶重结晶,从而保护有机体免受结冰引起的伤害.由于抗冻蛋白具有阻止冰晶生长而不破坏细胞的特点,因而利用抗冻蛋白在低温中长期保存各种细胞、组织和器官,特别在器官移植中可能具有很好的应用前景.  相似文献   

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Objective To assess clinical effectiveness of using bilateral pectoralis major or plus rectus abdominis muscle flaps in treating deep sternal wound infection (DSWI) following median sternotomy. Methods Between January 2009 and December 2013, 19 patients with DSWI after median sternotomy for cardiac surgery were admitted to our hospital, including 14 males (73.7%) and 5 females (26.3%), aged 55±13 (18-78) years. According to the Pairolero classification of infected median sternotomies, 3 (15.8%) patients were type II, and the other 16 (84.2%) were type III. Surgical procedure consisted of adequate debridement of infected sternum, costal cartilage, granulation, steel wires, suture residues and other foreign substances. Sternal reconstruction used the bilateral pectoralis major or plus rectus abdominis muscle flaps to obliterate dead space. The drainage tubes were placed and connected to a negative pressure generator for adequate drainage. Results There were no intraoperative deaths. In 15 patients (78.9%), bilateral pectoral muscle flaps were mobilized sufficiently to cover and stabilize the defect created by wound debridement. 4 patients (21.0%) needed bilateral pectoral muscle flaps plus rectus abdominis muscle flaps because their pectoralis major muscle flaps could not reach the lowest portion of the wound. 2 patients (10.5%) presented with subcutaneous infection, and 3 patients (15.8%) had hematoma. They recovered following local debridement and medication. 17 patients (89.5%) were examined at follow-up 12 months later, all healed and having stable sternum. No patients showed infection recurrence during the follow-up period over 12 months. Conclusion DSWI following median sternotomy may be effectively managed with adequate debridement of infected tissues and reconstruction with bilateral pectoralis major muscle or plus rectus abdominis muscle flap transposition.  相似文献   

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病人,女,81岁.40年前在工作时双上肢不慎被火烧伤,当年在大连化工厂医院烧伤科给予取自体腹部皮肤行前臂植皮术,术后植皮区域皮肤成活修复良好.4年前无明显诱因双侧前臂植皮区域肤色逐渐变深,无意中发现皮肤明显松弛,无不适感.近3个月自觉植皮区域疼痛不适,局部无红肿等,轻微牵拉皮肤时疼痛明显.自发病起4年皮损未见扩大.患者既往体健,否认家族有类似病患者.  相似文献   

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夏季多喝汤不仅能调节口味,补充体液,增强食欲,而且能防病抗病,对健康有益. 日常人们常喝的汤有荤、素两大类.荤汤有鸡汤、肉汤、骨头汤、鱼汤、蛋花汤等,素汤有海带汤、豆腐汤、紫菜汤、番茄汤、冬瓜汤和米汤等.无论是荤汤还是素汤,都应根据各人的喜好与口味来选料烹制,加之"对症喝汤",就可达到抗衰治病、清热解毒的"汤疗"效果.  相似文献   

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第16届欧洲呼吸学会年会(The European Respiratory Society 16th Annual Congress)于2006年9月1日~6日在德国慕尼黑市国际会议中心(ICM)召开,来自100多个国家和地区的16 888名代表参加了会议,大会共收到论文5277篇,接收论文4221篇,其中来自中国(包括香港、澳门和台湾)84篇(图1).现将会议内容扼要介绍如下.  相似文献   

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POCT是在医疗条件下,由非实验室的卫生保健人员,在实验室的质控指导下,于病人身边进行的检验。它广泛适用于医院(如外科,儿科)、监护病房、急救单位、保险公司、社区医疗、家庭保健网络等领域。当今,POCT在全球方兴未艾,据调查,现今已有10%的诊断实验是在POCT仪器上完成的,究其原因,无非是POCT兼具医学上的有效性及经济两个方面的优势。当然,随着POCT设备的投放不断增加,使用范围不断拓展,POCT的管理问题也日益凸现,本文将对POCT实施中的信息管理的若干问题进行初步探讨。  相似文献   

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1 临床资料 患者,男,23岁,因左下肢疼痛20 d来医院就诊.询问病史:患者2 d前在上级医院诊断为坐骨神经痛.既往健康,无药物过敏史.门诊当日给予维生素B1 100 mg,维生素B12 250靏肌注,用药约5 min时患者感到头晕、胸闷、呼吸困难、寒战,面色苍白,脉搏105次·min-1,血压80/50 mmHg,考虑为药物所致过敏性休克,立即给予平卧,氧气吸入,肾上腺素1 mg肌注,地塞米松10 mg静注,5 min后患者恢复正常.  相似文献   

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韩兴军  田旭东 《实用医技杂志》2006,13(15):2720-2721
目的:探讨髂股深静脉血栓形成(DVT),在顺行造影的同时,加压推注尿激酶的应用。方法:56例DVT,男38例,女18例,右下肢20例,左下肢36例,病程6h~5d。从患肢远端浅静脉入路,小腿中下1/3捆扎止血带,使对比剂经深静脉通过,进行下肢深静脉顺行造影的同时,加压间断推注尿激酶,进行溶栓治疗,尿激酶使用20万U~80万U。结果:56例患者均获得了良好的临床疗效,无一例无效,无一例发生症状性肺栓塞,所有患者症状消失或明显减退。结论:经下肢浅静脉加压推注尿激酶进行溶栓治疗髂股DVT,疗效确切,溶解率高,方法简便,安全可靠。  相似文献   

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陈苹 《卫生职业教育》2005,23(18):49-50
现代医学建立的生理—心理—社会的医学模式,使护理工作的社会化要求不断扩展。在中等医学护理专业的教育阶段,教师只有抓住学生的心理特征,贯彻以学生的个性发展为本的教育理念,革新教学方法,在学生的学习生活、教学实习中给予科学的引导,帮助学生提高心理素质和工作能力,才能有利于学生更好地走向社会,服务于社会。  相似文献   

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听课并不是被动地接受信息,而是看、听、想、问、记相结合的过程。病理学教师应从5方面指导学生听好课:(1)指导学生会看,提高其观察能力;(2)指导学生会听,提高其听课效率;(3)指导学生多想,提高其思维能力;(4)指导学生会问,提高其质疑能力;(5)指导学生会记笔记。  相似文献   

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1听课的意义 课堂听课对学生来说,有着非同寻常的意义。  相似文献   

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核医学是一门新兴的医学学科,也是高等医药院校的必修课程,其中核医学绪论的讲授是核医学课程的重要内容之一。为了提高核医学绪论的授课效果,结合多年的核医学教学实践,系统探讨了核医学绪论的讲授方法、讲授内容以及对教师的要求。  相似文献   

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在许多与医学相关的院校中,《人体解剖学》是一门重要的专业基础课。但是目前在理论教学过程中存在学生缺乏动力,教师积极性不足等问题,这些因素都会影响该课程的发展。本文对这些问题进行多方面分析之后提出以下解决办法:明确课程定位,调整课程内容,丰富教学形式,改进教学方法和完善考试制度。  相似文献   

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