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相关概念视频

Regulation of Expression Occurs at Multiple Steps02:24

Regulation of Expression Occurs at Multiple Steps

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Drug Control Governance: Regulatory Bodies and Their Impact01:03

Drug Control Governance: Regulatory Bodies and Their Impact

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Drug control governance involves the oversight and regulation of pharmaceuticals to ensure their safety and efficacy while preventing illegal drug use and trafficking. Regulatory bodies, including the US Food and Drug Administration (FDA) and the European Union's European Medicines Agency (EMA), play a central role in this process. These agencies evaluate the safety and efficacy of drugs before they can be marketed. They fund clinical trials and assess the benefits and risks associated with...
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Regulation of Expression at Multiple Steps01:23

Regulation of Expression at Multiple Steps

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The gene expression in cells is regulated at different stages: (i) transcription, (ii) RNA processing, (iii) RNA localization, and (iv) translation. Transcriptional regulation is mediated by regulatory proteins such as transcription factors, activators, or repressors—these control gene expression by initiating or inhibiting the transcription of genes. Once a precursor or pre-mRNA is produced, it undergoes post-transcriptional modification, including 5' capping, splicing, and the...
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Cooperative Binding of Transcription Regulators02:13

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Transcriptional regulators bind to specific cis-regulatory sequences in the DNA to regulate gene transcription. These cis-regulatory sequences are very short, usually less than ten nucleotide pairs in length. The short length means that there is a high probability of the exact same sequence randomly occurring throughout the genome.  Since regulators can also bind to groups of similar sequences, this further increases the chances of random binding. Transcriptional regulators form...
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Global Regulatory Systems01:28

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Global regulatory systems in bacteria enable rapid and coordinated responses to environmental changes by integrating sensory inputs with gene expression, ensuring efficient adaptation to fluctuating conditions. Key global regulatory mechanisms include regulons, two-component systems, sigma factors, and secondary messengers.Regulons and Global RegulatorsA regulon is a collection of genes and operons controlled by a common global regulator. These regulators enable bacteria to prioritize resource...
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Cellular needs and conditions vary from cell to cell and change within individual cells over time. For example, the required enzymes and energetic demands of stomach cells are different from those of fat storage cells, skin cells, blood cells, and nerve cells. Furthermore, a digestive cell works much harder to process and break down nutrients during the time that closely follows a meal compared with many hours after a meal. As these cellular demands and conditions vary, so do the amounts and...
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相关实验视频

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Using SCOPE to Identify Potential Regulatory Motifs in Coregulated Genes
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走向基于财产的监管方式

Tobias D Muellers1,2, Predrag V Petrovic1,2, Julie B Zimmerman1,2

  • 1School of the Environment, Yale University, 195 Prospect St, New Haven, Connecticut 06511, United States.

Environmental science & technology
|August 1, 2023
PubMed
概括

目前的化学品监管速度缓慢且效率低下. 一种新的基于财产的监管方法可以改善安全评估,加快监管,并提高化学设计人员的透明度.

关键词:
物理化学特性 物理化学特性化学品评估 化学品评估化学法规 化学法规 化学法规为了降低危险,分子设计.安全的化学空间 安全的化学空间

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相关实验视频

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科学领域:

  • 环境化学环境化学
  • 毒理学 毒理学 毒理学
  • 监管科学是一种监管科学.

背景情况:

  • 人为化学物质造成广泛的环境和健康问题.
  • 目前的化学品监管是以化学品身份为基础的,证明是不够的和低效的.
  • 这种方法允许由于监管行动缓慢而造成的不利影响持续存在.

研究的目的:

  • 引入一种新的监管范式:基于财产的监管.
  • 展示如何调节物理化学性质可以创建安全的化学空间.
  • 提高化学评估和监管的可扩展性和效率.

主要方法:

  • 分析基本物理化学性质与化学危害之间的联系.
  • 检查现有的基于稀有财产的监管方法.
  • 使用生物积累作为一个案例研究来证明适用性.

主要成果:

  • 基于财产的监管为化学评估提供了更大的可扩展性.
  • 这种方法大大减少了监管所需的时间和资源.
  • 它为化学设计师和工业提供了更大的透明度.

结论:

  • 过渡到基于财产的监管是可行的和有益的.
  • 这种范式转变可以加速新分子的监管过程.
  • 实施需要政府,非政府组织和行业之间的合作.