相关实验视频
Updated: May 6, 2026

09:29
Skeletal Muscle Gender Dimorphism from Proteomics
Published on: December 14, 2011
12.5K
全基因组甲基化和转录基因组对骨肌肉的差异分析,在肉中,有valgus-varus变形的肉
1College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China.
British poultry science
|November 6, 2024
概括
brojlers中的valgus-varus变形 (VVD) 与腿部肌肉中的DNA甲基化改变有关. 这项研究确定了与蛋白质降解有关的差异甲基化基因和途径,为VVD病原体提供了新的表观遗传洞察力.
科学领域:
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 动物科学动物科学
- 分子生物学分子生物学
背景情况:
- 瓦尔古斯-瓦鲁斯形 (VVD) 严重损害肉腿的功能,没有有效的治疗方法.
- 基因甲基化对骨肌肉发育和肉中VVD病变的作用仍然未被探索.
研究的目的:
- 为了研究VVD受影响和正常肉的腿部肌肉中的全基因组DNA甲基化模式.
- 为了确定差异甲基基因 (DMGs) 和相关途径参与VVD.
- 通过分析DNA甲基化和基因表达来探索VVD背后的表观遗传机制.
主要方法:
- 整个基因组双硫酸盐测序被用来分析VVD中的DNA甲基化和控制肉.
- 生物信息分析,包括识别差异甲基化区域 (DMR) 和基因 (DMG).
- 对DMG进行了基因本体学 (GO) 和基因和基因组京都百科全书 (KEGG) 路径丰富分析. 分析了蛋白质与蛋白质相互作用网络,并研究了5-azacytidine (5-AzaC) 对基因表达的影响.
主要成果:
- 在细胞氨酸-酸-氨酸 (CG) 序列环境中观察到大约55%的甲基化率,确定了4,265个DMR.
- 转基因丰富突出了与蛋白质降解相关的途径 (例如,蛋白酶组合体). 凯格 (KEGG) 分析显示,蛋白质体和代谢等信号通路的丰富.
- MYL9显示了促进体DNA甲基化和mRNA表达之间的负相关性. 5-AzaC治疗抑制了DNMT1/DNMT3A,并促进了MYL9的表达.
结论:
- 这项研究提供了对受VVD影响的肉腿肌肉中DNA甲基化模式的全面分析.
- 识别的DMG和丰富的途径为VVD肌肉生长和发育的分子机制提供了洞察力.
- 表观遗传变化,特别是DNA甲基化,在VVD病变发生过程中发挥着重要作用,为未来的治疗策略开辟了道路.
相关概念视频
The Central Dogma
116.9K
Overview
116.9K
Bone Structure
40.4K
Within the skeletal system, the structure of a bone, or osseous tissue, can be exemplified in a long bone, like the femur, where there are two types of osseous tissue: cortical and cancellous.
40.4K
Classification of Skeletal Muscle Fibers
48.5K
Skeletal muscles continuously produce ATP to provide the energy that enables muscle contractions. Skeletal muscle fibers can be categorized into three types based on differences in their contraction speed and how they produce ATP, as well as physical differences related to these factors. Most human muscles contain all three muscle fiber types, albeit in varying proportions.
Slow-Twitch Muscle Fibers
Slow oxidative, muscle fibers appear red due to large numbers of capillaries and high levels of...
Slow-Twitch Muscle Fibers
Slow oxidative, muscle fibers appear red due to large numbers of capillaries and high levels of...
48.5K
From DNA to Protein
20.9K
The flow of genetic information in cells from DNA to mRNA to protein is described by the central dogma, which states that genes specify the sequence of mRNAs, which in turn specify the sequence of amino acids making up all proteins. The decoding of one molecule to another is performed by specific proteins and RNAs. Because the information stored in DNA is so central to cellular function, it makes intuitive sense that the cell would make mRNA copies of this information for protein synthesis...
20.9K
General Transcription Factors
5.9K
Tissue-specific transcription factors contribute to diverse cellular functions in mammals. For example, the gene for beta globin, a major component of hemoglobin, is present in all cells of the body. However, it is only expressed in red blood cells because the transcription factors that can bind to the promoter sequences of the beta globin gene are only expressed in these cells. Tissue-specific transcription factors also ensure that mutations in these factors may impair only the function of...
5.9K
Classification of Bones
14.3K
The bones of the human skeletal system are of varied shapes, sizes, and functions. They can be classified based on their shape and function into four major classes: long bones, short bones, flat bones, and irregular bones. Some classifications include a fifth type, the sesamoid bones, as a separate class, whereas others categorize them under short bones.
Long and Short Bones
The appendicular skeleton, particularly the upper and lower limbs, is primarily made of long and short bones. The...
Long and Short Bones
The appendicular skeleton, particularly the upper and lower limbs, is primarily made of long and short bones. The...
14.3K

