在糖尿病中,tRNA衍生碎片被改变
N Ng1, H A Y Gibriel2, L Halang2
1Department of Diabetes and Endocrinology, Mater Misericordiae University Hospital, Dublin 7, Ireland.
Diabetic medicine : a journal of the British Diabetic Association
|November 7, 2023
概括
血清转移RNA衍生碎片 (tiRNAs) 显示出作为糖尿病生物标志物的前景. 具体来说,5'ValCAC水平在母性遗传糖尿病和聋 (MIDD) 和2型糖尿病中较低,有助于诊断.
科学领域:
- 分子生物学分子生物学
- 遗传学 遗传学 是一个
- 生物化学 生物化学
背景情况:
- 母性遗传糖尿病和聋 (MIDD) 是一种罕见的,成人发病的糖尿病,具有可变的表型,使得诊断具有挑战性.
- 转移RNA衍生的小片段 (tiRNAs) 是新兴的非编码RNA,由于它们的稳定性和可检测性,它们具有作为血清生物标记物的潜力.
研究的目的:
- 与健康对照组相比,对MIDD,1型糖尿病和2型糖尿病患者的tiRNA 5'ValCAC和miR-23b-3p的血清水平进行研究.
- 评估这些tiRNAs的诊断潜力,单独和组合,以区分MIDD与其他类型的糖尿病.
主要方法:
- 小RNA测序被用来识别相关的tiRNAs.
- 从健康对照组,1型糖尿病,2型糖尿病和MIDD患者的血清样本中分析了tiRNA 5'ValCAC和miR-23b-3p水平.
- 进行了接收器操作特征 (ROC) 分析,以评估生物标志物潜力.
主要成果:
- 与对照组相比,MIDD和2型糖尿病患者的tiRNA 5'ValCAC血清水平显著降低.
- 与所有其他组相比,2型糖尿病患者的miR-23b-3p血清水平较高.
- 5'ValCAC和miR-23b-3p的组合显示出出色的区分能力,特别是在将MIDD与2型糖尿病分开时.
结论:
- 这项研究是第一个报告糖尿病患者血清tiRNA水平发生变化的研究.
- 血清5'ValCAC和miR-23b-3p的联合测量显示了作为一种新生物标志物战略的潜力,用于区分MIDD和2型糖尿病.
相关概念视频
Diabetes Mellitus: Overview and Type I Subtype
2.7K
Diabetes mellitus is a chronic metabolic disorder characterized by high blood glucose levels due to inadequate insulin production, insulin resistance, or both. The condition affects millions worldwide and can significantly impact their health and quality of life.
Type 1 diabetes is an autoimmune disease in which the immune system mistakenly attacks and destroys the insulin-producing beta cells in the pancreas. As a result, the body is unable to produce sufficient insulin, and individuals with...
Type 1 diabetes is an autoimmune disease in which the immune system mistakenly attacks and destroys the insulin-producing beta cells in the pancreas. As a result, the body is unable to produce sufficient insulin, and individuals with...
2.7K
Alternative RNA Splicing
21.2K
Alternative RNA splicing is the regulated splicing of exons and introns to produce different mature mRNAs from a single pre-mRNA. Unlike in constitutive splicing where a single gene produces a single type of mRNA, alternative splicing allows an organism to produce multiple proteins from a single gene and plays an important role in protein diversity.
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
21.2K
Translation
142.1K
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...
142.1K
Transfer RNA Synthesis
12.0K
One of the unique features of tRNA is the presence of modified bases. In some tRNAs, modified bases account for nearly 20% of the total bases in the molecule. Altogether, these unusual bases protect the tRNA from enzymatic degradation by RNases.
Each of these chemical modifications is carried by a specific enzyme, post-transcription. All of these enzymes have unique base and site-specificity. Methylation, the most common chemical modification, is carried by at least nine different enzymes, with...
Each of these chemical modifications is carried by a specific enzyme, post-transcription. All of these enzymes have unique base and site-specificity. Methylation, the most common chemical modification, is carried by at least nine different enzymes, with...
12.0K
RNA Editing
9.0K
RNA editing is a post-transcriptional modification where a precursor mRNA (pre-mRNA) nucleotide sequence is changed by base insertion, deletion, or modification. The extent of RNA editing varies from a few hundred bases, in mitochondrial DNA of trypanosomes, to a just single base, in nuclear genes of mammals. Even a single base change in the pre-mRNA can convert a codon for one amino acid into the codon for another amino acid or a stop codon. This type of re-coding can significantly affect the...
9.0K
RNA Splicing
56.4K
Splicing is the process by which eukaryotic RNA is edited before its translation into protein. The RNA strand transcribed from eukaryotic DNA is called the primary transcript. The primary transcripts that become mRNAs are called precursor messenger RNAs (pre-mRNAs). Eukaryotic pre-mRNA contains alternating sequences of exons and introns. Exons are nucleotide sequences that code for proteins, whereas introns are the non-coding regions. In RNA splicing, introns are removed and exons are bonded...
56.4K


