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Cell Reports:慢性疼痛与细胞携带“损伤记忆”密切相关

2016-05-17 佚名 生物360

一些患者疾病即使消失了,但仍存在着持续性疼痛。目前英国科学家最新研究表明,慢性疼痛与细胞携带“损伤记忆”有关。据科学日报报道,目前,英国伦敦大学国王学院最新一项研究提供了为什么慢性疼痛会持续,甚至当身体损伤消失仍会持续疼痛。虽然这项研究处于初期阶段,但是该研究将解释多小的伤害等级会产生更持续的破坏,最终形成慢性疼痛。日常生活中我们都会遇到持续性疼痛的患者,这是一种非常普遍的现象,通常是由于运动损伤

一些患者疾病即使消失了,但仍存在着持续性疼痛。目前英国科学家最新研究表明,慢性疼痛与细胞携带“损伤记忆”有关。


据科学日报报道,目前,英国伦敦大学国王学院最新一项研究提供了为什么慢性疼痛会持续,甚至当身体损伤消失仍会持续疼痛。虽然这项研究处于初期阶段,但是该研究将解释多小的伤害等级会产生更持续的破坏,最终形成慢性疼痛。


日常生活中我们都会遇到持续性疼痛的患者,这是一种非常普遍的现象,通常是由于运动损伤、各种疾病和身体衰老所导致的。但是对于持续性疼痛的治疗非常有限,医生除了提供局部缓解疼痛的药物,很难有更好的治疗方案。


虽然慢性疼痛有许多种形成原因,但是其表现形式是相同的——神经系统过度敏感,科学家对此提出了置疑,为什么神经系统会长时间地保持敏感,尤其是处于潜在伤害或者疾病消除状态。


伦敦大学国王学院的研究人员通过检测老鼠神经系统免疫细胞回答了这一问题,这对于产生持续性疼痛是非常重要的,这项最新研究报告发表在近期出版的《细胞报告》杂志上。


他们发现神经损伤将改变一些免疫细胞基因的表观遗传标记,表观遗传是确定基因表达的过程,一些表观遗传信号具有直接的功能结果,而另一些却仅是引物——潜在作用或者被修改。


伦敦大学国王学院检测的细胞仍是正常的,但是它们的表观遗传标记却意味着携带最初伤害的“记忆”。研究报告第一作者、伦敦大学国王学院弗兰西斯卡-登克(Franziska Denk)博士说:“我们最终将试着揭晓为什么疼痛会转变为慢性状态,目前我们知道慢性疼痛患者的神经系统非常活跃,因此认为这很可能是由于患者神经系统各种不同蛋白质和通道具有不同属性所导致的。”


但是科学家并不清楚为什么持续疼痛患者神经系统会保持过度活跃,高敏感状态,甚至当最初伤害或者疾病已消失。


登克博士指出,我们希望知道为什么这些蛋白质和通道较长时间地持续改变功能性,细胞的多数成分在数周或者几个月内将被取代和更换,它们具有“家务管理”系统,我们的研究尚处于初级阶段,未来我们将进一步探索表观遗传对于慢性疼痛的可能性改变,希望未来该领域研究将有助于找到独特的治疗靶点。


原始出处:


Franziska Denk et al .Persistent Alterations in Microglial Enhancers in a Model of Chronic Pain.Cell Reports ,May 12, 2016.


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    2016-09-14 1e10c84am36(暂无匿称)

    文章不错,值得拜读

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    2016-12-30 维他命
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近日,来自加州大学戴维斯分校的研究人员发现了神经疼痛的重要机制。他们发现,被称为内质网应激的生物过程,是引起神经疼痛的重要原因。这项发现可能造福于成千上万的慢性疼痛的患者,例如由创伤,糖尿病,带状疱疹,多发性硬化症或导致神经损伤的其他疾病引起的慢性疼痛。相关研究成果于近日发表在PNAS杂志上。最近,有研究发现, 非通道、非神经递质的疼痛治疗靶点是可溶性环氧化物水解酶(sEH)。这种酶可以降解自然镇

Hum Reprod Update:所谓痛经

背景:在没有盆腔病理学之前,痛经是普遍的,是往往令人衰弱的妇科疾病,影响了大概45%-95%之间的行经后女性。通过对专业医务人员、疼痛研究人员和女性的调查发现,尽管痛经如此高发,却常常是治疗不好的,甚至是被忽视的。大多数女性认为痛经是正常月经周期的一部分。本次回顾报告目前的知识,特别是关于复发性痛经的疼痛敏感性、情绪、生活质量和原发性痛经女性的睡眠。方法:使用PubMed、谷歌学者和Cochran

Scientific Reports:慢性疼痛改变我们的免疫系统

根据一项最新发表于Scientific Reports期刊的研究,麦吉尔大学研究人员发现,慢性疼痛可能重新编程免疫系统中基因的工作方式。 "我们发现,慢性疼痛会改变DNA标记的方式,不仅涉及大脑,还涉及T细胞。T细胞是一种对免疫力至关重要的白细胞"麦吉尔大学医学院教授Moshe Szyf说,"我们的发现强调了慢性疼痛对身体其他重要部分比如免疫系统的毁灭性影响。" 慢性疼痛--持续6个月或更

Ann Intern Med:当前疗法或并不能有效治疗美国1亿慢性疼痛患者

据估计美国现在有1亿人都患有慢性疼痛,近日,一项发表于国际杂志Annals of Internal Medicine上的研究论文中,来自印第安纳大学的研究人员的研究人员表示,充足的临床研究并不代表着医生们可以很好地治疗携带多种健康问题的成年个体的机体慢性疼痛。 尽管阿片类药物因为可以治疗慢性疼痛被经常使用,但是当前仍缺少个体慢性疼痛的评定及治疗准则,Callahan博士说道,难道阿片类药物是最恰

Anesthesiology:慢性疼痛患者的福音---高频脊髓电刺激

慢性疼痛是指持续一个月以上的疼痛,有学者将其比喻为一种不死的癌症。目前,慢性疼痛具有相当的广泛性及顽固性,然而针对慢性疼痛的治疗还不完善并且存在较多的副作用。研究人员表示,频率为10 kHz(HF10疗法)的脊髓电刺激(SCS)治疗也许能使患者的疼痛得到缓解,并且不具有传统低频SCS常出现的感觉异常等副作用。本次随机,平行,非劣性研究旨在比较SCS治疗对患者背部及腿部疼痛治疗的长期安全性

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