针对突触可塑性,以弥合败血症相关脑病变中的翻译差距
1Department of Anesthesiology, Hokkaido University Hospital, Sapporo, Japan.
Frontiers in aging neuroscience
|June 25, 2025
概括
败血症相关脑病变 (SAE) 由于神经炎症导致认知功能受损. 针对突触可塑性,如长期强化 (LTP),为这种败血症并发症提供了一个有希望的治疗途径.
科学领域:
- 神经科学是一个神经科学.
- 免疫学 免疫学 免疫学
- 病理生理学 病理生理学
背景情况:
- 败血症相关脑病变 (SAE) 是败血症的常见并发症,导致幸存者的长期认知缺陷.
- 目前对SAE缺乏治疗策略,研究中存在持续的翻译差距.
- 现有的动物模型在认知评估中存在挑战,原因是可变的免疫反应和混的疾病行为.
研究的目的:
- 审查目前对SAE病理生理学的理解,重点关注神经炎症和突触可塑性.
- 突出目前动物模型和SAE认知评估方法的局限性.
- 倡导转向以机制为驱动,以可塑性为重点的SAE治疗开发.
主要方法:
- 对有关败血症相关脑病变,神经炎症和突触可塑性现有文献的综述.
- 分析微质,细胞因子和海马长期增强 (LTP) 在SAE中的作用.
- 对针对突触可塑性的潜在治疗干预措施的评估.
主要成果:
- SAE是由神经炎症驱动的,涉及激活的微质和细胞因子信号传递,导致海马体LTP受损.
- 慢性血损伤是SAE的早期和敏感指标,可在败血症发病后数小时至几天内检测到.
- 运动,环境丰富和肠道微生物群调节等新兴干预措施在缓解SAE方面显示出希望.
结论:
- 突触可塑性,特别是LTP,是SAE的关键机制,也是潜在的治疗点.
- 需要综合的多式联络战略来解决SAE复杂的病理生理学问题.
- 为了开发有效的SAE疗法,转向机制驱动的,以塑性为重点的研究模式转变至关重要.
更多相关视频
09:07Electroconvulsive Seizures in Rats and Fractionation of Their Hippocampi to Examine Seizure-induced Changes in Postsynaptic Density Proteins
Published on: August 15, 2017
12.2K
09:44Chemogenetic Regulation in Reprogrammed Stem Cell-derived Precursor Cells in Treating Neurodegenerative Diseases
Published on: May 2, 2025
326
相关概念视频
Translation
Lesson: Translation
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of Life
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of Life
Translation
Lesson: Translation
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of Life
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of Life
Improving Translational Accuracy
Base complementarity between the three base pairs of mRNA codon and the tRNA anticodon is not a failsafe mechanism. Inaccuracies can range from a single mismatch to no correct base pairing at all. The free energy difference between the correct and nearly correct base pairs can be as small as 3 kcal/ mol. With complementarity being the only proofreading step, the estimated error frequency would be one wrong amino acid in every 100 amino acids incorporated. However, error frequencies observed in...
Prosopagnosia
Prosopagnosia, also known as face blindness, is the inability to recognize faces. In severe cases, individuals with prosopagnosia may not recognize close family members, including parents and spouses, by their faces. For instance, someone with prosopagnosia might walk past their child in a crowd, only realizing their mistake upon noticing their child's distinctive backpack or favorite jacket. Prosopagnosia specifically impairs facial recognition, while the recognition of other objects or...
