准备和MR成像研究的重组表面抗体超偏磁铁氧化物纳米颗粒-EPC1分子探针肝气泡肠球菌病的研究
Weili Tian1, Wenchao Ji2, Wenya Liu2
1Department of Imaging Center, The Alliated Tumour Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China.
概括
一种与EPC1抗体相结合的新型超偏磁铁氧化物纳米粒子 (SPION) 探针通过MRI显示了通过MRI检测肝气泡内球菌 (HAE) 病变的增强灵敏度. 这种分子探针为早期HAE诊断提供了改进的,持久的效果.
科学领域:
- 生物医学成像技术 生物医学成像技术
- 纳米技术 纳米技术
- 寄生虫学的寄生虫学
背景情况:
- 肝气管内菌病 (HAE) 是一个重大的诊断挑战.
- 目前的成像技术可能缺乏用于早期HAE检测的灵敏度.
- 开发有针对性的分子探针对于提高诊断准确性至关重要.
研究的目的:
- 为了建立一种新的小鼠模型来治疗肝膜球性球菌 (HAE).
- 使用EPC1抗体结合的超偏磁铁氧化物纳米粒子 (SPIONs) 构建一个向的分子探针.
- 为了评估这个SPION-EPC1探针对HAE的向MRI检测的有效性.
主要方法:
- 在C57雌性小鼠中通过肝门静脉感染建立了一个HAE模型.
- 小鼠接受了简单的SPION追踪器 (对照) 或SPION-EPC1追踪器 (实验).
- 用T1和T2加权序列进行MRI;分析T2信号强度和SNR.
主要成果:
- 在注射后1至4小时,SPION-EPC1探针在HAE受影响的肝脏中显著降低了T2信号强度和病变SNR.
- 对照SPIONs只显示过渡性信号下降,缺乏显著的长期影响.
- 阻断组证实了EPC1依赖的向,显示了减弱的信号减少.
结论:
- SPION-EPC1分子探针通过MRI显示出通过MRI检测HAE病变的卓越灵敏度和持续的信号变化.
- 这种有针对性的探测器代表了对HAE.早期诊断有前途的进展.
- 这些发现表明,在HAE成像中改善临床实践的潜力.
相关概念视频
Recombinant DNA
103.5K
Overview
103.5K
Oxidation Numbers
43.1K
In redox reactions, the transfer of electrons occurs between reacting species. Electron transfer is described by a hypothetical number called the oxidation number (or oxidation state). It represents the effective charge of an atom or element, which is assigned using a set of rules.
43.1K
Alveoli and Alveolar Ducts
6.0K
The respiratory zone of the human body, which stands in contrast to the conducting zone, comprises the structures that actively participate in the exchange of gases. The initiation of this zone is marked by the terminal bronchioles converging into respiratory bronchioles, the tiniest bronchiole classification. The respiratory bronchioles give way to the alveolar ducts that opens into a congregation of alveoli. Actively involved in gas exchange, alveoli resemble tiny sacs similar to clusters of...
6.0K
Viral Recombination
25.2K
Cells are sometimes infected by more than one virus at once. When two viruses disassemble to expose their genomes for replication in the same cell, similar regions of their genomes can pair together and exchange sequences in a process called recombination. Alternatively, viruses with segmented genomes can swap segments in a process called reassortment.
25.2K
Homologous Recombination
63.5K
The basic reaction of homologous recombination (HR) involves two chromatids that contain DNA sequences sharing a significant stretch of identity. One of these sequences uses a strand from another as a template to synthesize DNA in an enzyme-catalyzed reaction. The final product is a novel amalgamation of the two substrates. To ensure an accurate recombination of sequences, HR is restricted to the S and G2 phases of the cell cycle. At these stages, the DNA has been replicated already and the...
63.5K
Molecular and Ionic Solids
20.3K
Crystalline solids are divided into four types: molecular, ionic, metallic, and covalent network based on the type of constituent units and their interparticle interactions.
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
20.3K


