相关实验视频

Updated: Jun 6, 2025

Author Spotlight: High-Throughput Image-Based Quantification of Mitochondrial DNA Synthesis and Distribution

Author Spotlight: High-Throughput Image-Based Quantification of Mitochondrial DNA Synthesis and Distribution

Published on: May 5, 2023

线粒体DNA丰富度和循环代谢概况:英国生物库的多变量调整和门德尔随机化分析

Jiao Luo¹, Saskia le Cessie², Ko Willems van Dijk³

¹Department of Internal Medicine, Section of Gerontology and Geriatrics, Leiden University Medical Center, Leiden, the Netherlands; Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands.

|November 26, 2024

概括

低白细胞线粒体DNA (mtDNA) 丰富度与改变的血液代谢物有关,这表明它具有亲atherogenic 形状. 这一发现可能解释了低mtDNA丰度如何增加动脉样硬化心血管疾病的风险.

科学领域:

心血管疾病研究研究
代谢学代谢学代谢学
遗传学是一个遗传学.

背景情况:

低白细胞线粒体DNA (mtDNA) 丰富度是动脉样硬化心血管疾病 (ASCVD) 的已知危险因素.
连接低mtDNA丰度与ASCVD风险的潜在机制仍然不清楚.
代谢分析可能作为一种中间的表型来阐明这些机制.

研究的目的:

调查白细胞mtDNA丰富度与循环代谢概况之间的关联.
使用遗传方法探索潜在的因果关系.

主要方法:

在61,186名欧洲英国生物库参与者中对168个基于NMR的新陈代谢指标进行横截面分析.
多变量调整的线性回归用于评估mtDNA丰度和代谢指标/主要成分 (PC) 之间的关联.
门德尔随机化 (MR) 用于推断基因预测的mtDNA丰度对代谢资料的因果关系.

主要成果:

低mtDNA丰度与130个代谢指标相关,包括较低的氨基酸和较高的脂质/脂肪酸.
在9个代谢PC中,有7个被观察到有显著关联.
基因预测低mtDNA丰度与较低的乳酸盐,较高的酸盐和较高的不和度有关.

结论:

低白细胞mtDNA丰度与显著的代谢干扰有关.
这些干扰表明有亲有风源性代谢特征.
这种代谢链接可能部分解释了与低mtDNA丰度相关的ASCVD风险增加.

更多相关视频

Genotyping Single Nucleotide Polymorphisms in the Mitochondrial Genome by Pyrosequencing

Genotyping Single Nucleotide Polymorphisms in the Mitochondrial Genome by Pyrosequencing

Published on: February 10, 2023

An In Vitro Approach to Study Mitochondrial Dysfunction: A Cybrid Model

An In Vitro Approach to Study Mitochondrial Dysfunction: A Cybrid Model

Published on: March 9, 2022

相关概念视频

Animal Mitochondrial Genetics

Animal Mitochondrial Genetics

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...