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Related Concept Videos

Anticholinesterase Agents: Poisoning and Treatment01:26

Anticholinesterase Agents: Poisoning and Treatment

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 slower than the...
Diabetic Neuropathy01:22

Diabetic Neuropathy

DefinitionDiabetic neuropathy is nerve damage caused by long-standing diabetes mellitus. It results directly from prolonged high blood sugar levels.PathophysiologyThe pathophysiology of diabetic neuropathy involves both metabolic and vascular disturbances triggered by chronic hyperglycemia.Metabolic injury: Elevated glucose levels activate the polyol pathway within nerve cells, leading to the accumulation of sorbitol and fructose. This increases oxidative stress, disrupts normal nerve...
Botulism01:22

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Indirect-Acting Cholinergic Agonists: Mechanism of Action01:18

Indirect-Acting Cholinergic Agonists: Mechanism of Action

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, leading to...
Indirect-Acting Cholinergic Agonists: Pharmacokinetics01:22

Indirect-Acting Cholinergic Agonists: Pharmacokinetics

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Related Experiment Videos

Organophosphate induced delayed neuropathy.

N Nand1, H K Aggarwal, Komal Bharti

  • 1Department of Medicine, Pt. B.D.S. Post Graduate Institute of Medical Sciences, Rohtak-124001, Haryana, India.

The Journal of the Association of Physicians of India
|April 21, 2007
PubMed
Summary

A young man experienced delayed neuropathy after organophosphate poisoning and requiring mechanical ventilation. This case highlights a rare but serious neurological complication of organophosphate exposure.

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Area of Science:

  • Toxicology
  • Neurology
  • Environmental Health

Background:

  • Organophosphate compounds are widely used pesticides with known neurotoxic effects.
  • Acute poisoning can lead to respiratory failure requiring mechanical ventilation.
  • Delayed neuropathy is a recognized, albeit less common, sequela of certain organophosphate exposures.

Observation:

  • A 19-year-old male presented after ingesting an organophosphate compound.
  • The patient required two weeks of assisted mechanical ventilation due to respiratory compromise.
  • Following recovery from the acute phase, the patient developed symptoms indicative of delayed neuropathy.

Findings:

  • The case illustrates a delayed neurological sequela following acute organophosphate poisoning.
  • The development of delayed neuropathy underscores the complex and varied neurotoxic potential of these agents.
  • This presentation emphasizes the importance of monitoring for delayed neurological deficits in patients recovering from organophosphate exposure.

Implications:

  • Clinicians should be vigilant for delayed-onset neurological symptoms in patients with a history of organophosphate poisoning.
  • Further research into the mechanisms underlying organophosphate-induced delayed neuropathy is warranted.
  • Public health awareness regarding the risks associated with organophosphate compounds, including delayed neurological effects, is crucial.