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相关概念视频

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PK–PD modeling has significantly influenced FDA regulatory decisions, particularly drug approval, dosage optimization, and labeling. These models integrate pharmacokinetics (PK) and pharmacodynamics (PD) to predict drug behavior and effects, aiding in optimizing dosing regimens and enhancing the probability of clinical trial success.One notable example is Nesiritide (Natrecor®), a recombinant human brain natriuretic peptide for treating acute decompensated congestive heart failure...
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Bioplastics

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Bioplastics derived from microbial processes present a sustainable alternative to conventional petroleum-based plastics. Among these, polyhydroxyalkanoates (PHAs), particularly polyhydroxybutyrates (PHBs), have emerged as prominent candidates due to their biodegradability and biocompatibility. These polymers are synthesized by a variety of bacteria, such as Cupriavidus necator and Pseudomonas putida, which naturally accumulate PHAs as intracellular carbon and energy reserves, especially under...
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在PFAS之外进行创新

Martin Scheringer1

  • 1Martin Scheringer is a professor of environmental chemistry at RECETOX, Masaryk University, Brno, Czech Republic, and a senior scientist and group leader at ETH Zürich, Zürich, Switzerland. He is also the chair of the International Panel on Chemical Pollution and a co-coordinator of the Global PFAS Science Panel.

Science (New York, N.Y.)
|July 20, 2023
PubMed
概括
此摘要是机器生成的。

由于广泛的环境污染,新的立法涉及化物和多化物 (PFAS) 或"永久化学品". 不断发展的法规旨在管理消费品和饮用水中这些持久化学物质带来的风险.

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科学领域:

  • 环境科学
  • 监管事务
  • 毒理学

背景情况:

  • 和多基物质 (PFAS) 在消费品中广泛使用.
  • PFAS是食物,水和人体中存在的持续性环境污染物.
  • 目前对PFAS的规定复杂且在全球范围内不断发展.

研究的目的:

  • 突出围绕PFAS的日益关注和立法行动.
  • 强调评估和监管这些持久化学品的挑战.
  • 检查PFAS污染的规模及其影响.

主要方法:

  • 审查欧洲和美国的立法提案.
  • 对PFAS在环境和人体中的持久性和无处不在性的分析.
  • 检查PFAS化学稳定性所带来的监管挑战

主要成果:

  • 主要经济地区正在考虑关于PFAS的重大立法提案.
  • 污染很普遍,最近的报告显示,美国45%的自来水含有这些化学物质.
  • 对于环境评估和监管来说,PFAS的化学稳定性是一个独特的挑战.

结论:

  • PFAS的持续性和广泛存在需要紧急监管关注.
  • 现有的监管框架在解决PFAS污染方面面临重大挑战.
  • 在解决PFAS问题上新立法的有效性仍有待确定.