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Related Concept Videos

Prevention of Further Absorption of Poison01:14

Prevention of Further Absorption of Poison

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In cases of acute poisoning, the primary objective is to prevent further absorption of the toxic substance into the body. Immediate interventions using various decontamination techniques targeting the gastrointestinal (GI) tract can achieve this. Decontamination is crucial to prevent poison from entering the systemic circulation, which involves washing affected areas with water and mild soap and removing contaminated clothing. Once external decontamination is done, attention must be turned to...
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Enhanced Elimination of Poison01:26

Enhanced Elimination of Poison

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Poison can be effectively removed from the gastrointestinal (GI) tract through various decontamination procedures.
Antidotes serve a crucial role in counteracting the effects of poison by inhibiting enzymes responsible for producing harmful drug metabolites. In some cases, these toxic metabolites can be neutralized by endogenous cosubstrates, which are maintained at specific concentrations to prevent interaction with cellular macromolecules and subsequent cell death.
Renal excretion is the...
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Antidotes01:17

Antidotes

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Antidotes are medicinal substances used to counteract the harmful effects of toxins or drugs in the body. They function in various ways, each uniquely designed to combat specific toxic compounds.
Specific antidotes operate by inhibiting the enzymes that control biochemical pathways, reducing the production of harmful metabolites.
An example of an antidote is atropine, which counteracts the detrimental effects of cholinesterase inhibitors. It achieves this by deactivating muscarinic receptors,...
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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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Toxic Reactions: Overview01:26

Toxic Reactions: Overview

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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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Phase II Reactions: Glutathione Conjugation and Mercapturic Acid Formation01:22

Phase II Reactions: Glutathione Conjugation and Mercapturic Acid Formation

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Glutathione, a tripeptide made up of glutamate, cysteine, and glycine, is a critical player in the detoxification of drugs and xenobiotics via a process known as glutathione conjugation or mercapturic acid formation. This phase II biotransformation reaction involves the covalent binding of glutathione to a drug or its metabolite, enhancing the compound's water solubility and enabling its excretion.
Several distinctive characteristics distinguish glutathione conjugation from other phase II...
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Related Experiment Video

Updated: Nov 17, 2025

High-throughput Screening for Small-molecule Modulators of Inward Rectifier Potassium Channels
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Complexions therapy and severe intoxication by Thallium salts.

Maria Rayisyan1, Natalia Zakharova2, Liudmila Babaskina3

  • 1Department of Regulatory Relations on the Circulation of Pharmaceuticals and Medical Products, Sechenov First Moscow State Medical University, Moscow, Russian Federation.

Journal of Environmental Science and Health. Part A, Toxic/Hazardous Substances & Environmental Engineering
|February 12, 2021
PubMed
Summary
This summary is machine-generated.

Severe thallium poisoning causes multi-organ damage. Adding deferasirox to standard therapy, including potassium hexacyanoferrate (II), accelerates thallium elimination and improves liver and kidney function.

Keywords:
deferasirox at poisoning by thalliumpotassium-iron hexacyanoferrate at intoxication with thalliumsevere intoxication with thallium saltstreatment of severe intoxications with thallium salts

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Area of Science:

  • Toxicology
  • Clinical Medicine
  • Pharmacology

Background:

  • Thallium salt poisoning presents with severe gastrointestinal, neurological, and cardiac complications.
  • Effective treatment strategies for severe thallium intoxication are crucial for patient outcomes.

Purpose of the Study:

  • To investigate the clinical manifestations of severe thallium salt poisoning.
  • To evaluate the efficacy of potassium hexacyanoferrate (II) combined with deferasirox in treating severe thallium poisoning.

Main Methods:

  • A comparative study of 39 patients with severe thallium poisoning divided into two groups.
  • Group I received standard therapy including potassium hexacyanoferrate (II), furosemide, and hemodialysis.
  • Group II received standard therapy plus deferasirox.

Main Results:

  • Severe thallium poisoning affects the GI tract, nervous system, causes alopecia, and cardiac issues.
  • The addition of deferasirox to potassium hexacyanoferrate (II) therapy enhanced thallium elimination rates.
  • Improved functional status of the liver and kidneys was observed in patients receiving deferasirox.

Conclusions:

  • Severe thallium poisoning requires comprehensive management addressing multi-organ involvement.
  • Deferasirox, when added to standard therapy with potassium hexacyanoferrate (II), offers a beneficial effect in accelerating thallium clearance and supporting organ function.