Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Epigenetic Regulation01:37

Epigenetic Regulation

3.0K
Epigenetic changes alter the physical structure of the DNA without changing the genetic sequence and often regulate whether genes are turned on or off. This regulation ensures that each cell produces only proteins necessary for its function. For example, proteins that promote bone growth are not produced in muscle cells. Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
X-chromosome...
3.0K
Stringent Response in E. coli01:23

Stringent Response in E. coli

17
Bacterial growth is closely tied to nutrient availability, with cells proliferating exponentially under favorable conditions and entering a stationary phase when resources become scarce. This transition is mediated by a regulatory mechanism known as the stringent response, which allows bacteria to adapt to nutrient deprivation by modulating gene expression and metabolic activity.During nutrient scarcity, intracellular amino acid levels decline. It results in the accumulation of uncharged tRNAs...
17
Inducible Operons: lac Operon01:25

Inducible Operons: lac Operon

34
The lac operon in Escherichia coli is a model for understanding inducible gene regulation and metabolic flexibility. It integrates local control by lactose and global regulation through catabolite repression, enabling E. coli to preferentially metabolize glucose when available and switch to lactose utilization when glucose is scarce.Structure and Function of the lac OperonThe lac operon contains three structural genes: lacZ (β-galactosidase), lacY (lactose permease), and lacA...
34
Genomic Imprinting and Inheritance02:30

Genomic Imprinting and Inheritance

34.6K
Diploid organisms inherit genetic material through chromosomes from both parents. Copies of the same gene are known as alleles. In most cases, both alleles are simultaneously expressed and allow various cellular processes to function optimally. If one of the alleles is missing or mutated, the expression of the other allele can compensate; however, this is not true for all genes.
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
34.6K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Rabbit Does as a Model for Studying Plasma Metabolomic Adaptations Across Reproductive Stages: Insights from Parturition to Weaning.

Veterinary sciences·2026
Same author

Beyond Genes: Metabolomic Evidence Indicates Potential Species-Level Differentiation in European Wild Rabbits.

Journal of experimental zoology. Part A, Ecological and integrative physiology·2026
Same author

Genetic Selection for Growth Rate Reshapes the Plasma Metabolome of Rabbit Does Derived from Vitrified Embryos: Insights into Nutrient Metabolism and Productive Efficiency.

Veterinary sciences·2026
Same author

A Comprehensive Review of the Bovine Immune Response to Pathogens.

International journal of molecular sciences·2025
Same author

Genetic Regulation of Immune Response in Dogs.

Genes·2025
Same author

Untargeted Metabolomics to Harness Ideal Protein Concept and Mitigate Environmental Impact in Rabbit Models.

International journal of molecular sciences·2025

相关实验视频

Updated: Jul 12, 2025

Instrumentation of Near-term Fetal Sheep for Multivariate Chronic Non-anesthetized Recordings
14:40

Instrumentation of Near-term Fetal Sheep for Multivariate Chronic Non-anesthetized Recordings

Published on: October 25, 2015

9.5K

营养如何影响乳牛的表观遗传变化?

Ana Lesta1, Pablo Jesús Marín-García2, Lola Llobat1

  • 1MMOPS Research Group, Departamento Producción y Sanidad Animal, Salud Pública y Ciencia y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, CEU Universities, 46115 Valencia, Spain.

Animals : an open access journal from MDPI
|October 27, 2023
PubMed
概括

优化奶牛的营养影响表观遗传修饰,影响基因表达,健康和牛奶生产. 关键的营养物质,如和胆可以改变DNA甲基化以提高生产力.

关键词:
通过DNA甲基化.牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛表观遗传变化 表观遗传变化基因素脱乙化 基因素脱乙化这是一个小RNARNA.牛奶生产 牛奶生产

更多相关视频

Bovine Mammary Gland Biopsy Techniques
14:53

Bovine Mammary Gland Biopsy Techniques

Published on: December 23, 2018

14.2K
An Efficient Single—Person Technique for Milk Sampling from Laboratory Mice
04:56

An Efficient Single—Person Technique for Milk Sampling from Laboratory Mice

Published on: March 28, 2025

664

相关实验视频

Last Updated: Jul 12, 2025

Instrumentation of Near-term Fetal Sheep for Multivariate Chronic Non-anesthetized Recordings
14:40

Instrumentation of Near-term Fetal Sheep for Multivariate Chronic Non-anesthetized Recordings

Published on: October 25, 2015

9.5K
Bovine Mammary Gland Biopsy Techniques
14:53

Bovine Mammary Gland Biopsy Techniques

Published on: December 23, 2018

14.2K
An Efficient Single—Person Technique for Milk Sampling from Laboratory Mice
04:56

An Efficient Single—Person Technique for Milk Sampling from Laboratory Mice

Published on: March 28, 2025

664

科学领域:

  • 动物科学动物科学
  • 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
  • 营养生物化学 营养生物化学

背景情况:

  • 奶牛的健康和生产力取决于均衡的营养,缺陷会导致代谢问题和降低产量.
  • 包括DNA甲基化在内的表观遗传修饰越来越被认为是牲畜饮食和基因表达之间的关键调解者.
  • 了解这些营养表观遗传学对于提高乳牛福利和产量至关重要.

研究的目的:

  • 审查特定营养物质如何影响乳牛的表观遗传修饰.
  • 通过表观遗传镜头分析饮食对基因表达,牛奶生产和牛奶成分的影响.
  • 通过表观遗传学突出营养策略的潜力,通过表观遗传学改善乳牛健康和生产力.

主要方法:

  • 对调查乳牛表观遗传学营养影响的研究的文献综述.
  • 分析饮食成分 (甲素,素,胆,叶酸) 以及它们在DNA甲基化中的作用.
  • 检查由营养影响的表观遗传调节剂的组织蛋白修饰和microRNAs.

主要成果:

  • 饮食因素显著影响奶牛的DNA甲基化模式,影响关键的基因表达.
  • 特定的营养物质,如氨酸,氨酸,胆和叶酸被确定为这些表观遗传变化的关键调节剂.
  • 基因素修饰和微RNA也在乳牛的营养介导基因调节中发挥作用.

结论:

  • 营养是调节乳牛表观遗传调节的强大工具,影响健康和生产力.
  • 优化饮食营养特征可以促进有益的表观遗传修饰,从而改善牛奶产量和成分.
  • 针对营养表观遗传学为可持续和高效的奶牛养殖实践提供了一个有希望的途径.