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Analytical Balance

公司名称: Sartorius
产品编号: CP124S
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Fibrin Breakdown Assay
Author:
Date:
2020-04-20
[Abstract]  Fibrinolysis is an integral part of the matrix remodeling process that contributes to tissue repair. Fibrin clots are broken down during fibrinolysis in a controlled process. Fibrin degradation products (FDPs) have also been shown to have a role in the regulation of cell growth and are implicated in various vascular diseases. This protocol was designed to quantitatively measure the extent of fibrin breakdown and how this can be adapted as a tool to further investigate the pathway involved in fibrinolysis or fibrin degradation products. Until now, we haven’t found an alternative method to ... [摘要]  [摘要] 纤维蛋白溶解是基质重塑过程中不可或缺的一部分,它有助于组织修复。在受控的过程中,纤维蛋白凝块在纤维蛋白溶解过程中被破坏。纤维蛋白降解产物(FDPs)也已显示出对细胞调节的作用。生长且与各种血管疾病有关。该协议旨在定量测量纤维蛋白分解的程度以及如何将其用作进一步研究纤维蛋白溶解或纤维蛋白降解产物的途径的工具。到目前为止,我们还没有发现了另一种分析纤维蛋白溶解的方法。

[背景 ] 在止血过程中,纤维蛋白既是纤维蛋白溶解的最终底物,又是凝血级联反应的主要产物(Cesarman-Maus 和Hajjar ,2005 ;Chapin和Hajjar,2015 )。对植入的生物材料的急性炎性反应,已表明血纤蛋白在白细胞的迁移进而发炎中起着重要作用(Yakovlev and Medved ,2018)。血纤蛋白溶解是一个严格调节的过程,通过该过程,富含血纤蛋白的血栓形成和降解,防止血凝块的生长(Amengual 和Atsumi ,2016)并有助于组织修复(Houslay 等人,2019)。在纤维蛋白溶解过程中,纤维蛋白凝块(凝血产物)被分解,纤维蛋白降解产物(FDPs)被分解。作为促有丝分裂因子的纤维蛋白可以促进内皮细胞,平滑肌细胞和成纤维细胞的增殖以及胆固醇沉积(Dong ...

Mechanical Allodynia Assessment in a Murine Neuropathic Pain Model
Author:
Date:
2018-01-20
[Abstract]  Experimental animal models are unique tools (i) to study pain transmission and pathophysiology of neuropathic pain, (ii) to identify novel molecular targets and (iii) to test the potential analgesic effect of specific molecules. The chronic constriction injury (CCI) model of neuropathic pain is the first model of post-traumatic painful peripheral neuropathy, originally developed by Bennett and Xie in the late 1980s. The chronic constriction is performed in the sciatic nerve and induces a partial denervation involving myelinated afferent axons and unmyelinated axons. Damage to unmyelinated ... [摘要]  实验动物模型是独特的工具:(i)研究神经性疼痛的疼痛传递和病理生理学,(ii)鉴定新的分子靶标和(iii)测试特定分子的潜在镇痛作用。神经性疼痛的慢性缩窄性损伤(CCI)模型是最初由Bennett和Xie在二十世纪八十年代后期开发的创伤后疼痛性周围神经病的第一个模型。慢性收缩是在坐骨神经中进行的,并诱导部分去神经支配,包括有髓鞘的传入轴突和无髓鞘轴突。对无髓鞘轴突的损伤比有髓神经传入者严重得多。由于该模型导致部分去神经支配,对疼痛行为的分析非常有用。刺激后爪(坐骨神经的靶标)引起可被定量的疼痛。因此,通常通过测量对von Frey丝刺激的后爪缩回反应,在坐骨神经的CCI后7,14和21天评估机械异常性疼痛。在这里,我们详细描述协议允许在小鼠中可靠和可重复的CCI模型。总的来说,研究人员最常使用这种手术模式来发现更有效的慢性疼痛状态的药物控制药物。

【背景】Bennett和Xie(1988)首先提出了神经性疼痛的慢性缩窄性损伤(CCI)模型。慢性缩窄应用于模拟创伤后疼痛性周围神经病的坐骨神经。该模型诱导了部分去神经支配,因此对定量分析疼痛行为和评价新药的镇痛效果非常有用。坐骨神经的CCI在异氟烷麻醉下进行(诱导5%,维持2%)。通过解剖将股二头肌和股浅筋膜分开以暴露坐骨神经。通过在坐骨神经周围松散地结扎一根结扎物来诱导CCI,以保持神经外循环。
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