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Related Concept Videos

Types of Toxins01:36

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

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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Local Anesthetics: Adverse Effects01:12

Local Anesthetics: Adverse Effects

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While local anesthetics are generally safe and well-tolerated, they can occasionally cause adverse effects that vary in severity. Local anesthetics can induce toxicity at two distinct levels. They can either produce local effects through direct contact with the neural elements or be absorbed into the bloodstream from the injection site, leading to systemic effects.
Once absorbed into the systemic circulation, local anesthetics can affect the organs that depend on the functioning of sodium...
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Disorders of the Nervous Tissue01:28

Disorders of the Nervous Tissue

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Nervous tissue is a vital component of the human body's communication system, enabling us to perceive and respond to stimuli. However, like all other tissues, it is vulnerable to disorders and diseases that can significantly impact our neurological functioning.
Homeostatic Imbalances:
Alzheimer's disease manifests as a gradual decline in memory and cognitive abilities, attributed to the buildup of amyloid plaques and neurofibrillary tangles in the brain.
Parkinson's disease arises from the...
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Local Anesthetics: Differential Sensitivity of Nerve Fibers01:24

Local Anesthetics: Differential Sensitivity of Nerve Fibers

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Local anesthetics (LAs) block the sodium channels of nerve trunks, sensory nerve endings, and neuromuscular junctions. Although LAs can block all kinds of nerves, the sensitivity of nerve fibers differs according to nerve types and structures. LAs are known to block myelinated fibers faster than unmyelinated ones. Also, they block pain or sensory neurons at low concentrations without affecting the motor neurons involved in muscle contractions. This helps relieve labor pain without affecting the...
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Directly Acting Muscle Relaxants: Dantrolene and Botulinum Toxin01:26

Directly Acting Muscle Relaxants: Dantrolene and Botulinum Toxin

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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.
The binding of dantrolene to the RYR1...
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Updated: Dec 6, 2025

Establishing a Mouse Model of a Pure Small Fiber Neuropathy with the Ultrapotent Agonist of Transient Receptor Potential Vanilloid Type 1
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Toxin-Induced Neuropathies.

Michel Toledano1

  • 1Department of Neurology, Mayo Clinic, 200 1st Street, Rochester, MN 55905, USA.

Neurologic Clinics
|October 12, 2020
PubMed
Summary
This summary is machine-generated.

Diagnosing toxic neuropathies is crucial for effective treatment and preventing further exposure. This review highlights common neurotoxicant-induced peripheral neuropathies from various sources.

Keywords:
ChemotherapyNeurotoxicityOccupational exposurePeripheral neuropathy

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Area of Science:

  • Neurology
  • Toxicology

Background:

  • Peripheral neuropathies are often caused by neurotoxicants, posing diagnostic challenges.
  • Accurate diagnosis is vital for patient management, including preventing further toxic exposure and initiating timely treatment.

Purpose of the Study:

  • To review the key features of common toxic neuropathies.
  • To cover neuropathies resulting from occupational, environmental, medication, and chemotherapy-related exposures.

Main Methods:

  • Literature review of toxic neuropathies.
  • Analysis of diagnostic features and causative agents.

Main Results:

  • Discusses common neurotoxicants and their associated peripheral neuropathies.
  • Highlights diagnostic challenges and clinical presentations.

Conclusions:

  • Emphasizes the importance of recognizing and diagnosing toxic neuropathies.
  • Provides a framework for identifying and managing patients with neurotoxicant exposure.