暴露于糖尿病怀孕的后代心肌线粒体网膜网络的发育差异
Prathapan Ayyappan1,2, Tyler C T Gandy1, David Sturdevant1
1Sanford Research, Sioux Falls, SD 57104, USA.
Cells
|November 13, 2025
概括
糖尿病怀孕会影响后代的心脏发育,导致线粒体网络的改变. 这种发育不良会导致晚年患心血管疾病的风险.
科学领域:
- 心血管科学 心血管科学
- 发展生物学 发展生物学
- 线粒体生物学 线粒体生物学
背景情况:
- 糖尿病怀孕增加了新生儿和成人心血管疾病 (CVD) 的后代风险.
- 以前的研究表明,糖尿病怀孕会损害后代心脏中的线粒体功能.
研究的目的:
- 调查糖尿病怀孕对子女心肌线粒体结构的长期影响.
- 为了确定早期的线粒体功能障碍是否影响成人心脏结构和心脏代谢风险.
主要方法:
- 使用了一种孕前糖尿病的老鼠模型.
- 采用3D串行块面部扫描电子显微镜 (SBF-SEM) 来分析线粒体网络.
- 从新生儿,三周大和四个月大的后代身上检查了左心室部分.
主要成果:
- 暴露于糖尿病的后代在出生时具有显著较少的周核线粒体 (PN) 和内纤维线粒体 (IF).
- 线粒体数量迅速增加,在三周内没有显示差异,但在四个月内超过了对照.
- 尽管数量增加,但线粒体体积在所有发育阶段仍然明显较低.
结论:
- 糖尿病怀孕导致子女心肌线粒体网膜发育不良.
- 这种结构异常可能导致成人心血管疾病风险增加.
相关概念视频
Pathophysiology of Diabetes
3.1K
Diabetes mellitus is a chronic metabolic disorder characterized by hyperglycemia. The four categories of diabetes are type 1 diabetes, type 2 diabetes, other specific types of diabetes, and gestational diabetes.
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility,...
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility,...
3.1K
Diabetes Mellitus: Type 2 and Gestational
4.3K
Type 2 diabetes, characterized by insulin resistance, arises when the insulin receptors on cells lose responsiveness to insulin, diminishing the cell's capacity to take up glucose, resulting in elevated blood glucose levels. To receive a diagnosis of Type 2 diabetes, a series of blood glucose tests are necessary to assess whether the blood glucose falls within normal parameters. If the result is out of the normal range, a patient may be diagnosed as prediabetic or diabetic, depending on the...
4.3K
Animal Mitochondrial Genetics
8.9K
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...
8.9K


