机械进步和翻译进步在基于氨酸的支架和管道的外围神经再生
Caroline J Cushman1, Naveen A Sakthiyendran2, Maryam Salimi3
1School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA.
Journal of functional biomaterials
|January 27, 2026
概括
氨酸生物材料有望通过减少痕和促进神经再生来修复外围神经. 需要进一步的研究来标准化治疗方法,并进行用于患者的大型临床试验.
科学领域:
- 生物材料科学 生物材料科学
- 再生医学是一种再生医学.
- 神经科学是一个神经科学.
背景情况:
- 周围神经损伤 (PNI) 的恢复率很低.
- 氨酸 (HA) 具有有益于神经修复的再生和抗纤维性质.
研究的目的:
- 系统地审查有关在外围神经修复中使用HA生物材料的文献.
- 评估HA在临床前和临床环境中的疗效,以改善神经再生和功能.
主要方法:
- 在PRISMA的指导下,从2000年1月到2024年8月对四个主要数据库 (PubMed,Scopus,Web of Science,Embase) 进行系统审查.
- 包括体外,体内和临床研究,研究HA在外围神经修复中的作用.
- 重复查和数据提取研究背景,干预措施和结果.
主要成果:
- 四十八项研究符合纳入标准,证明HA生物材料持续减少围神经纤维化和增强轴突再生.
- 与传统修复相比,观察到更好的功能结果 (斜骨功能指数,复合肌肉动作潜力,神经传导速度).
- 酸盐水凝和导管,特别是与外体或神经营养因子相结合时,接近自移植的功能结果.
结论:
- 含有HA的生物材料表现出抗纤维化,神经保护和再生效应,支持它们在外围神经重建中的使用.
- 早期的临床数据表明安全性,但需要更大规模的长期试验来确认疗效和耐用性.
- 对HA配方,剂量和严格的临床试验的标准化对于将其转化为患者护理至关重要.
相关概念视频
Peripheral Nervous System: Ganglia and Nerves
5.4K
The Peripheral Nervous System (PNS) is a crucial component of the body's neural network, extending beyond the central nervous system (CNS) to bridge the gap between the CNS and the external environment. It encompasses nerves, ganglia, and sensory receptors.
Nerves
The nerve is a bundle of axons that serves as the communication highway in the PNS. Each nerve is ensheathed in a protective layer of connective tissue called the epineurium. This outermost layer safeguards the nerve and supports the...
Nerves
The nerve is a bundle of axons that serves as the communication highway in the PNS. Each nerve is ensheathed in a protective layer of connective tissue called the epineurium. This outermost layer safeguards the nerve and supports the...
5.4K
Lewis Acids and Bases
48.3K
In 1923, G. N. Lewis proposed a generalized definition of acid-base behavior in which acids and bases are identified by their ability to accept or to donate a pair of electrons and form a coordinate covalent bond.
A coordinate covalent bond (or dative bond) occurs when one of the atoms in the bond provides both bonding electrons. For example, a coordinate covalent bond occurs when a water molecule combines with a hydrogen ion to form a hydronium ion. A coordinate covalent bond also results when...
A coordinate covalent bond (or dative bond) occurs when one of the atoms in the bond provides both bonding electrons. For example, a coordinate covalent bond occurs when a water molecule combines with a hydrogen ion to form a hydronium ion. A coordinate covalent bond also results when...
48.3K
Ions as Acids and Bases
26.3K
Salts with Acidic Ions
Salts are ionic compounds composed of cations and anions, either of which may be capable of undergoing an acid or base ionization reaction with water. Aqueous salt solutions, therefore, may be acidic, basic, or neutral, depending on the relative acid-base strengths of the salt’s constituent ions. For example, dissolving the ammonium chloride in water results in its dissociation, as described by the equation:
Salts are ionic compounds composed of cations and anions, either of which may be capable of undergoing an acid or base ionization reaction with water. Aqueous salt solutions, therefore, may be acidic, basic, or neutral, depending on the relative acid-base strengths of the salt’s constituent ions. For example, dissolving the ammonium chloride in water results in its dissociation, as described by the equation:
26.3K
Translation
156.1K
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...
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...
156.1K
Initiation of Translation
38.9K
Initiating translation is complex because it involves multiple molecules. Initiator tRNA, ribosomal subunits, and eukaryotic initiation factors (eIFs) are all required to assemble on the initiation codon of mRNA. This process consists of several steps that are mediated by different eIFs.
First, the initiator tRNA must be selected from the pool of elongator tRNAs by eukaryotic initiation factor 2 (eIF2). The initiator tRNA (Met-tRNAi) has conserved sequence elements including modified bases at...
First, the initiator tRNA must be selected from the pool of elongator tRNAs by eukaryotic initiation factor 2 (eIF2). The initiator tRNA (Met-tRNAi) has conserved sequence elements including modified bases at...
38.9K
Bronsted-Lowry Acids and Bases
104.7K
The acid-base reaction class has been studied for quite some time. In 1680, Robert Boyle reported traits of acid solutions that included their ability to dissolve many substances, to change the colors of certain natural dyes, and to lose these traits after coming in contact with alkali (base) solutions. In the eighteenth century, it was recognized that acids have a sour taste, react with limestone to liberate a gaseous substance (now known to be CO2), and interact with alkalis to form neutral...
104.7K


