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Anticholinesterase Agents: Poisoning and Treatment01:26

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Anticholinesterases, also known as cholinesterase inhibitors, work by blocking the breakdown of acetylcholine, leading to its accumulation in the synaptic cleft. This accumulation indirectly enhances both muscarinic and nicotinic actions. These agents are classified as reversible or irreversible based on their mechanism of action.     
Irreversible agents form a strong bond with the cholinesterase enzyme, making it inactive. The breakdown of the phosphorylated enzyme is...
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Types of Toxins

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Humans continually engage with an environment rich in potentially harmful chemicals. These are introduced to our bodies through inhalation, ingestion, or skin contact. These chemicals exist in various forms, such as air and environmental pollutants, agricultural chemicals, organic solvents, and heavy metals.
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...
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Toxic Reactions: Overview01:26

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When toxic substances penetrate the human body, they disseminate to various tissues, undergoing metabolic changes. This process yields reactive metabolites that may covalently bind with specific target molecules, resulting in toxicity.
Toxicity falls into two primary categories: local and systemic.
Local toxicity appears at the exposure site, such as protein denaturation caused by caustic substances.
In contrast, systemic toxicity requires the toxic agent's absorption and distribution,...
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Indirect-Acting Cholinergic Agonists: Pharmacokinetics01:22

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Indirect-acting cholinergic agonists, or anticholinesterases, enhance the body's cholinergic activity by inhibiting acetylcholine's breakdown. They are categorized as reversible or irreversible agents based on their mechanism of action. They are further classified into short-acting, intermediate-acting, and long-acting agents based on their duration of action.
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Drugs, encompassing various chemical compounds from natural sources, lab synthesis, or genetic engineering, elicit different biological responses in living organisms. Some of these responses are desirable or therapeutic, while others are undesirable. The primary goal of administering a drug is to achieve a therapeutic effect, that is, to address a specific disease or health condition. Any concurrent effects outside of this therapeutic outcome are considered undesirable. These undesirable...
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Indirect-acting cholinergic agonists work by interacting with an enzyme called acetylcholinesterase (AChE) in the synaptic cleft. They can be reversible or irreversible inhibitors and have different effects on the enzyme.
Reversible inhibitors like edrophonium bind to a specific part of the enzyme called the anionic catalytic site. They form noncovalent bonds, which means they are not strongly attached to the enzyme. This creates a temporary and less stable enzyme–inhibitor complex,...
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Updated: Sep 10, 2025

Extraction of Organochlorine Pesticides from Plastic Pellets and Plastic Type Analysis
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家庭用ビデオゲームコントローラにおける有機リン化合物の皮膚への暴露

Yuna Nishiyama1, Masahiro Tokumura1, Qi Wang2

  • 1Graduate Division of Nutritional and Environmental Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka-shi, Shizuoka 422-8526, Japan.

Environment & health (Washington, D.C.)
|August 21, 2025
PubMed
まとめ

ビデオゲームのコントローラによるトリフェニルリン酸 (TPhP) の皮膚への曝露は重大な健康上の問題です. プロのゲーマーや学生は 高い曝露率で 他の感染経路と競合します

キーワード:
人工皮膚電子スポーツ暴露の評価室内用品トリフェニルリン酸

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科学分野:

  • 環境 健康
  • 毒理学について
  • 消費者製品の安全性

背景:

  • トリフェニルリン酸 (TPhP) のような有機リン化合物はプラスチックに多く含まれています
  • TPhPの皮膚への曝露は,吸入または摂取よりも理解が少ない.
  • 電子機器と皮膚の接触が 長くなりました

研究 の 目的:

  • ビデオゲームのコントローラから TPhPへの皮膚の露出を調査する
  • TPhPの皮膚浸透率を定量化するために
  • 異なるユーザーグループで皮膚経由で摂取する量を推定する.

主な方法:

  • 37台のビデオゲームコントローラにおける TPhP の分析
  • 人工皮膚 (EPISKIN) を用いたインビトロ皮膚浸透試験
  • モント・カルロのシミュレーションで,日々の皮膚摂取量を推定する.

主要な成果:

  • TPhPは37例のうち27例で高濃度で検出された.
  • 測定されたTPhPの皮膚浸透率は0. 42ngcm−h−1である.
  • プロのゲーマーとeスポーツの学生は 危険にさらされているグループだと判明しました

結論:

  • ゲームコントローラからのTPhPへの皮膚曝露は重大なリスクです.
  • ゲーム機器は,粉塵の摂取/吸入に匹敵する TPhP 曝露の主要な源である可能性があります.
  • ゲーミングデバイスによる皮膚への曝露を緩和する戦略は緊急に必要である.