人体腹部皮肤切创纤维蛋白渗出量变化与时间相关性的研究

本文应用组织化学Ｍａｓｓｏｎ三色方法，对人体腹部２小时以内皮肤切创壁纤维蛋白渗出量变化规律进行了研究，发现切刨早期创壁纤维蛋白沙出量随着时间的延续而明显增多，为推断早期切创时间，提供了新的较为简便的方法。     

血管内皮细胞生长因子在法医学中的应用

血管内皮细胞生长因子(VEGF)是损伤愈合过程中启动血管形成的一个特异的有丝分裂原,也是一种有效的血管通透性诱导因子。本文结合有关文献,对当前有关的VEGF分子生物学特性,VEGF与损伤修复的关系及表达规律等方面的研究现状作一简要综述。     

纤维连接蛋白Ⅲ CS片段的剪接、表达以及与创伤修复的关系

纤维连接蛋白在创伤愈合中具有重要的作用 , 其基因在三个区域进行可变剪接 , 分别命名为 EⅢ A,EⅢ B和Ⅲ CS. 它们的功能仍有待于研究 . 本文就纤维连接蛋白的可变剪接片段Ⅲ cs的生物学活性及其在法医学中的应用展望做一粗浅的探讨 .     

Learning Pain: Poetry in Emotion

This paper asks the question; is a poetic response to law and suffering legitimate? It reflects upon Robert Duncan's poem Persephone and imagines the (dis)connections between law, literature and poetry. It muses upon the “Trauma” of the poem and the “wound” considered in the context of both public and private law and considers the politics of sentimentality, dominant within the political agenda of the 21st century. The article uses the poem as a lens which reveals that the law fails to address the question of suffering as the wound of the poem is used by the poet as a pedagogical argument to teach us about loss.

     

皮肤烧伤愈合过程中磷酸化JNK的变化

目的观察烧伤后人皮肤磷酸化JNK（p-JNK）的变化特点,初步探讨烧伤后创面愈合的分子机制。方法取12例烧伤后住院植皮患者的烧伤周边区皮肤为烧伤周边皮肤组;另取正常皮肤12例为正常皮肤组。应用免疫组织化学方法和常规HE染色检测p-JNK在皮肤烧伤周边区和正常皮肤组织中的变化情况。结果正常皮肤组织中表皮基底层细胞的胞浆和胞核内有p-JNK阳性着色,阳性细胞率为（8.8±1.3）%。在烧伤周边皮肤组中,p-JNK阳性着色主要定位于表皮细胞和部分炎症细胞中,阳性细胞率上升至（31.2±3.3）%,明显高于正常皮肤组织（P〈0.01）。结论烧伤后人皮肤p-JNK的变化可能与创面愈合有关。     

创道的超声检测及法医学意义

陈旧性创道长度的测定是法医学鉴定中的难点,长期以来没有得到应有的重视。随着高频二维超声和彩色多普勒成像技术的运用,目前已可以准确地定量创道的长度。通过两例损伤程度鉴定案例,并结合超声图像,说明超声检测在损伤程度鉴定中有重要的价值,可以为损伤程度的鉴定提供有价值的科学证据。     

小鼠皮肤切创愈合过程中p-JNK变化及其与时间的相关性

目的 探讨小鼠皮肤切创愈合过程中损伤区磷酸化JNK（p-JNK）的变化及不同损伤时间p-JNK的变化规律。方法 应用免疫组织化学和Westernblot方法检测小鼠皮肤切创后各个时间段p-JNK的变化情况。结果 正常组织中有少量p-JNK阳性着色。伤后3～12h损伤区p-JNK阳性着色主要在中性粒细胞,1～5dp-JNK阳性着色主要为单核细胞和成纤维细胞,7～14dp-JNK阳性着色以成纤维细胞为主。阳性细胞率3h～1d逐渐增高,1d达到峰值,3～5d有所下降,7d阳性细胞率达第二峰值。10～14d逐渐降低。Westernblot显示各个时间段均有p-JNK的阳性条带,其中12h和3d为p-JNK含量的2个高峰。结论 小鼠皮肤切创愈合过程中p-JNK在损伤区对诱导中性粒细胞、单核细胞和成纤维细胞的凋亡起非常重要的作用。同时P-JNK的规律性变化可用于损伤时间推断。     

Bullet Caliber and Type Categorization from Gunshot Wounds in Sus Scrofa (Linnaeus) Long Bone

Studies on ballistic trauma to the ribs and thorax, cranium, and long bones demonstrate the potential of obtaining a bullet caliber from an entrance wound. In order to validate prior research on caliber estimation in bone tissue and assess the viability of bullet type determination based on the macroscopic evidence at the entrance wound, thirty fleshed pork (Sus scrofa) shoulders (humeri) were shot with either lead or copper jacketed bullets in one of three calibers; 0.22, 9 mm, or 0.38. Overall, our findings are consistent with previous research indicating that calibers can be grouped into “small” and “large” categories. Bullet type, lead or copper jacket, can be ascertained based on cortical flaking and the analysis of materials deposited around the entry wound. The addition of this evidence holds value in cases where no firearm or ballistic evidence is recovered from a crime scene.     

不同环境条件下大鼠死后皮肤生物力学特性改变

目的死亡时间的推测是法医病理学研究的重点和难点。皮肤具有一定生物力学特性,是机体死后分解破坏发生较迟的部分。本研究观察不同环境条件下死后大鼠皮肤生物力学特性的改变,探索其与死亡时间的关系。方法系统测试雌性SD大鼠在不同环境条件下（A组较高环境温度,B组较低环境温度）的死后皮肤生物力学特性。结果 A组大鼠皮肤死后张应力、延伸率在死后1d内先降低后升高,1d～6d逐渐降低,6d～7d略呈上升趋势;B组大鼠皮肤死后张应力在死后2d内先降低后升高,2d～16d逐渐降低,16d～20d略上升。结论 A组的张应力、延伸率和B组的张应力、应变能密度均表现出与死亡时间较好的相关性,是较好的推测死亡时间的生物力学参数。     

Forensic Potential of MMPs and CC Chemokines for Wound Age Determination

In this study, we investigated time-dependent expression of matrix metalloproteases (MMP)-2, MMP-9, chemokine CC motif ligand (CCL)-2, CCL-3, CCL-5, IL-1β, IL-6, and TNF-α mRNA at the skin injury site and sought their forensic potentials during the skin wound repair process. The tested wound ages in 42 mouse skin wounds were distributed at 0d, 1d, 3d, 5d, 7d, 10d, and 14d, respectively and then followed by real-time polymerase chain reaction. Ultimately, MMP-2 played an important role in the inflammation phase. On the contrary, MMP-9 became involved at a later phase during wound healing. Meanwhile, CCL-2 and CCL-3 were active throughout almost all of the process. However, CCL-5 mRNA had no significance. Collectively, an MMP-9/MMP-2 ratio of over 0.84 indicated that skin wound healing age was strongly 5 days or less. So elevated gene expressions of cytokines and chemokines in different phases of wound ages implied that combined exploration could make wound age determination more accurate and objective.