相关实验视频

Updated: Jul 18, 2025

Laser Capture Microdissection of Mouse Embryonic Cartilage and Bone for Gene Expression Analysis

Laser Capture Microdissection of Mouse Embryonic Cartilage and Bone for Gene Expression Analysis

Published on: December 18, 2019

胆固醇丰富饮食对基因表达的影响编码骨形遗传蛋白-2 和鼠标巴中的骨质

Inessa I Yakubova¹, Volodymyr Ostrianko², Victor Dosenko³

¹PRIVATE HIGHER EDUCATIONAL ESTABLISHMENT «KYIV MEDICAL UNIVERSITY», KYIV, UKRAINE.

Wiadomosci lekarskie (Warsaw, Poland : 1960)

|August 25, 2023

概括

在怀孕的小鼠中,高胆固醇饮食改变了胚胎下中的关键基因表达. 骨形态遗传蛋白-2 (BMP-2) mRNA水平增加,而骨素mRNA水平下降,影响骨发育.

科学领域:

发育生物学是发展生物学.
分子遗传学分子遗传学
营养科学营养科学

背景情况:

母亲的饮食显著影响胚胎发育.
胆固醇代谢在骨形成中起着至关重要的作用.
了解骨质发生过程中的基因表达变化对于发育健康至关重要.

研究的目的:

为了研究母亲高胆固醇饮食对胚胎小鼠下中的骨质卡尔和骨形态遗传蛋白-2 (BMP-2) 的mRNA表达的影响.
评估母性高胆固醇血症如何影响妊娠第17天骨质生成的关键调节者.

主要方法:

在怀孕前和整个怀孕期间60天内,雌性小鼠通过2%胆固醇丰富的饮食诱导的实验性高胆固醇血症.
使用分子遗传方法分析17天怀孕小鼠胚胎下中的mRNA表达水平.
使用BMP-2mRNA和骨素mRNA相对于actinmRNA的定量分析.

主要成果:

与对照组相比,摄取胆固醇丰富饮食的母亲的胚胎在BMP-2 mRNA表达中增加了14.4%.
与对照组相比,在实验组中观察到骨甲素mRNA表达的显著下降22.3%.
对照组的相对BMP-2mRNA水平为27.0±2.82,而骨素mRNA水平为30.5±6.28.

结论:

孕产妇高胆固醇饮食显著影响发育小鼠胚胎中关键的骨质生成基因的表达.
增加的BMP-2表达表明潜在的补偿或改变信号通路,以应对高胆固醇血症.
骨质素表达量的降低表明可能对骨矿化和成熟过程产生负面影响.

关键词:

超胆固醇的饮食超胆固醇的饮食骨形态遗传蛋白-2 是一种骨形态遗传蛋白-2 .小鼠胚胎下下巴鼠标胚胎下下巴骨质卡尔辛是一种骨质卡尔辛.胆固醇胆固醇胆固醇是一种

更多相关视频

Author Spotlight: Comparing Alveolar and Long Bone Remodeling to Explore OTM Model Potential

Author Spotlight: Comparing Alveolar and Long Bone Remodeling to Explore OTM Model Potential

Published on: July 21, 2023

Skeletal Phenotype Analysis of a Conditional Stat3 Deletion Mouse Model

Skeletal Phenotype Analysis of a Conditional Stat3 Deletion Mouse Model

Published on: July 3, 2020

相关概念视频

Hormones and Bone Tissue

Hormones and Bone Tissue

The endocrine system produces and secretes hormones, which interact with the skeletal system. These hormones control bone growth, maintain bone once it is formed, and remodel it.
Hormones That Influence Osteoblasts and/or Maintain the Matrix
Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...

Bone Formation by Endochondral Ossification

Bone Formation by Endochondral Ossification

Bone formation, or ossification, begins around the sixth to seventh week of embryonic development. Most bones develop from a cartilaginous template through the process of endochondral ossification. Cartilage formation begins when clusters of mesenchymal cells differentiate into chondrocytes. These chondrocytes proliferate rapidly and secrete an extracellular matrix that becomes encased in a membrane called the perichondrium. The resulting cartilage model provides a template that resembles the...

Osteoclasts in Bone Remodeling

Osteoclasts in Bone Remodeling

Osteoclasts are cells responsible for bone resorption and remodeling. They originate from hematopoietic progenitor cells present in the bone marrow. Numerous progenitor cells fuse to form multinucleated cells, each with 10-20 nuclei. A single osteoclast has a diameter of 150 to 200 µM. These cells have ruffled borders that break down the underlying bone tissue and release minerals such as calcium into the blood in bone resorption. Osteoclasts cling to bones with their ruffled edges during...