线粒体衍生 (MDP) 与代谢状态之间的相关性:系统性审查和元分析
Qian Zhou1, Shao Yin1, Xingxing Lei1
1Hospital of Chengdu University of Traditional Chinese Medicine, Sichuan, Chengdu, 610072, China.
Diabetology & metabolic syndrome
|August 19, 2024
概括
十二个Sc (MOTS-c) 水平的线粒体开放读取框架在糖尿病中降低,但在肥胖中增加. 监测MOTS-c可能有助于早期预测和预防代谢综合征.
科学领域:
- 线粒体生物学 线粒体生物学
- 代谢调节 代谢调节 代谢调节
- 类信号传递 类信号传递
背景情况:
- MOTS-c是一种被线粒体12SrRNA编码的.
- 它影响着炎症和新陈代谢,可能会防止胰岛素抵抗.
- MOTS-c水平与人口特征之间的不一致的相关性需要进一步研究.
研究的目的:
- 在生理和病理状态中阐明MOTS-c水平.
- 分析MOTS-c与代谢特征之间的相关性.
- 综合血液MOTS-c度变化和关联的证据.
主要方法:
- 7项研究 (602名参与者) 的系统审查和元分析.
- 在科学网,PubMed,EMBASE,CNKI,WANGFANG和VIP数据库中进行了搜索.
- 统计分析包括标准化平均差异 (SMD),95%的置信区间 (CI) 和皮尔森相关系数.
主要成果:
- 血MOTS-c度在糖尿病中显著降低 (SMD = -0.89),在肥胖中增加 (SMD = 0.51).
- MOTS-c水平与总胆固醇 (TC) 和LDL-c正相关.
- 亚组分析显示了基于BMI的糖尿病与肥胖的明显MOTS-c变化.
结论:
- 在糖尿病患者和肥胖患者之间,循环MOTS-c水平显著不同.
- 监测MOTS-c可以作为代谢综合征的早期预测指数.
- 建议在常规查和预防策略中考虑MOTS-c的可变性.
更多相关视频
08:12Author Spotlight: Unveiling Mitochondrial Function and Cellular Metabolic Adaptation in Metabolic Diseases
Published on: October 4, 2024
1.5K
09:40Phosphorus-31 Magnetic Resonance Spectroscopy: A Tool for Measuring In Vivo Mitochondrial Oxidative Phosphorylation Capacity in Human Skeletal Muscle
Published on: January 19, 2017
11.7K
相关概念视频
Translocation of Proteins into the Mitochondria
3.1K
Mitochondrial precursors are translocated to the internal subcompartments via independent mechanisms involving distinct protein machineries called translocases.
Sorting of outer membrane proteins:
Mitochondrial outer membrane proteins are of two types: the transmembrane, beta-barrel porins, and the membrane-anchored, alpha-helical proteins. Beta-barrel porin precursors are translocated by the TOM complex and inserted into the outer mitochondrial membrane by the SAM complex. In contrast,...
Sorting of outer membrane proteins:
Mitochondrial outer membrane proteins are of two types: the transmembrane, beta-barrel porins, and the membrane-anchored, alpha-helical proteins. Beta-barrel porin precursors are translocated by the TOM complex and inserted into the outer mitochondrial membrane by the SAM complex. In contrast,...
3.1K
Mitochondrial Precursor Proteins
2.5K
Mitochondrial precursors are partially unfolded or loosely folded polypeptide chains. Newly synthesized precursors are inhibited from spontaneously folding into their native conformation by the cytosolic chaperones, heat shock proteins 70 (Hsp70), and mitochondrial import stimulation factors (MSFs). Precursors bound to MSFs are guided to the TOM70-TOM37 receptors, while precursors bound to Hsp70 chaperones are targetted to TOM20-TOM22 receptor complexes.
Most of the mitochondrial...
Most of the mitochondrial...
2.5K
Mitochondrial Protein Sorting
4.3K
Mitochondria are double-membrane organelles of the eukaryotes involved in cellular metabolism, signaling, ATP synthesis, and programmed cell death. Each of these processes requires specific proteins and enzymes that must be correctly sorted to the right mitochondrial subcompartment for the proper functioning of the organelle.
Most of these mitochondrial proteins are encoded by the nucleus and imported to the mitochondria as unfolded or loosely folded precursors. Mitochondrial precursors...
Most of these mitochondrial proteins are encoded by the nucleus and imported to the mitochondria as unfolded or loosely folded precursors. Mitochondrial precursors...
4.3K
Mitochondrial Membranes
9.4K
A single mitochondrion is a bean-shaped organelle enclosed by a double-membrane system. The outer membrane of mitochondria is smooth and contains many porins - the integral membrane transporters. Porins enable free diffusion of ions and small uncharged molecules through the outer mitochondrial membrane but limit the transport of molecules larger than 5000 Daltons. Further, the outer mitochondrial membrane forms a unique structure called membrane contact sites with other subcellular organelles,...
9.4K
Animal Mitochondrial Genetics
7.5K
Among all the organelles in an animal cell, only mitochondria have their own independent genomes. Animal mitochondrial DNA is a double-stranded, closed-circular molecule with around 20,000 base pairs. Mitochondrial DNA is unique in that one of its two strands, the heavy, or H, -strand is guanine rich, whereas the complementary strand is cytosine rich and called the light, or L, -strand. Compared to nuclear DNA, mitochondrial DNA has a very low percentage of non-coding regions and is marked by...
7.5K
Energy to Drive Translocation
2.0K
Mitochondrial protein import is powered by two distinct energy sources: ATP hydrolysis and electrochemical potential across the inner membrane. Newly synthesized precursors are bound by cytosolic chaperones of the Hsp70 family, which guide them to the import receptors on the mitochondrial surface. Utilizing the energy of ATP hydrolysis, Hsp70 chaperones transfer these precursors to the TOM receptors on the mitochondrial outer membrane.
Generally, polypeptides are unfolded by two distinct...
Generally, polypeptides are unfolded by two distinct...
2.0K
