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Related Concept Videos

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.     
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Directly Acting Muscle Relaxants: Dantrolene and Botulinum Toxin01:26

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Directly acting muscle relaxants like dantrolene and botulinum toxin (BoNT) have distinct mechanisms and applications. Dantrolene, a hydantoin derivative, acts on the ryanodine receptor (RYR1) in skeletal muscle cells. RYR1 are calcium channels present at the sarcoplasmic reticulum membrane. In response to excitation, they release calcium ions from the sarcoplasmic reticulum to the cytosol. Calcium promotes actin-myosin-mediated contraction of muscles.
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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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Skeletal muscle relaxants are used to relax muscle tone and alleviate painful muscle contractions. However, the choice of skeletal muscle relaxants depends on the duration of the surgical procedure in order to minimize potential side effects. Skeletal muscle relaxants like neuromuscular blocking agents [NMBAs] are commonly employed as adjuvants alongside general anesthetics in clinical settings. NMBAs are also used to maintain controlled ventilation during surgery of the larynx or pharynx...
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Related Experiment Video

Updated: Aug 12, 2025

Isolation and Quantification of Botulinum Neurotoxin From Complex Matrices Using the BoTest Matrix Assays
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Iatrogenic Botulism: A Case Treated With Botulinum Antitoxin.

Ozge Gonul Oner1, Hasan Can Gudek, Ozdem Erturk Cetin

  • 1Sancaktepe Sehit Prof Dr Ilhan Varank Training and Research Hospital, Sancaktepe, İstanbul.

Clinical Neuropharmacology
|February 2, 2023
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Summary

Iatrogenic botulism, a rare complication of Botulinum toxin type A injections, can be effectively treated with antitoxin even when administered late. This case highlights the importance of timely antitoxin intervention for progressing paralysis.

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Ultrasound-guided Botulinum Toxin-A Injections: A Method of Treating Sialorrhea
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Isolation and Quantification of Botulinum Neurotoxin From Complex Matrices Using the BoTest Matrix Assays
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Area of Science:

  • Neurology
  • Toxicology

Background:

  • Botulinum toxin type A is a neurotoxin widely used for therapeutic and cosmetic applications.
  • While generally safe, accidental vascular injection can lead to iatrogenic botulism, a serious condition affecting neuromuscular transmission.

Observation:

  • A patient developed iatrogenic botulism following Botulinum toxin type A exposure.
  • Symptoms of progressive paralysis were noted in the affected individual.

Findings:

  • The patient received antitoxin treatment on the 15th day after exposure.
  • A dramatic and positive response to antitoxin administration was observed.

Implications:

  • This case underscores the critical importance of antitoxin administration for iatrogenic botulism.
  • Antitoxin therapy may be beneficial even when initiated significantly after the initial exposure, especially in cases of progressing paralysis.