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Related Concept Videos

Local Anesthetics: Adverse Effects01:12

Local Anesthetics: Adverse Effects

1.0K
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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Parenteral Anesthetics: Overview01:24

Parenteral Anesthetics: Overview

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Intravenous anesthetics are drugs administered parenterally to induce anesthesia or sedation. Propofol is a widely used agent formulated as a 1% emulsion in soybean oil, glycerol, and egg phosphatide. It induces rapid anesthesia primarily due to its rapid distribution from the bloodstream to target tissues and is metabolized in the liver. However, it can cause significant pain on injection and hypertriglyceridemia. Fospropofol, a water-based prodrug of propofol, lacks these adverse effects.
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Local Anesthetics: Differential Sensitivity of Nerve Fibers01:24

Local Anesthetics: Differential Sensitivity of Nerve Fibers

1.7K
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...
1.7K
Skeletal Muscle Relaxants: Adverse Effects01:21

Skeletal Muscle Relaxants: Adverse Effects

1.2K
Skeletal muscle relaxants are widely used for muscle paralysis and relieving pain following any muscle injury or stiffness. However, depending on the drug type, they can have adverse effects that range from mild to severe. Usually, nondepolarizing neuromuscular blockers have minimal side effects. For example, drugs like d-tubocurarine, cisatracurium, and rocuronium cause hypotension, whereas drugs like baclofen, when stopped abruptly, can lead to the recurrence of spastic conditions.
Unlike...
1.2K
Local Anesthetics: Clinical Application as Spinal Anesthesia01:11

Local Anesthetics: Clinical Application as Spinal Anesthesia

2.0K
Spinal anesthetics are given during lower abdomen and limb surgeries to block sensory and motor neurons. They are administered in the mid to low lumbar regions, primarily acting on the cauda equina's nerve roots. The blockade level depends on the local anesthetic (LA) concentration. Usually, low LA concentrations are sufficient to block sensory fibers, while only high LA concentrations block motor fibers. Other factors like injection volume and speed, the patient's posture, and the drug...
2.0K
Local Anesthetics: Clinical Application as Epidural Anesthesia01:29

Local Anesthetics: Clinical Application as Epidural Anesthesia

1.0K
Epidural anesthetics are administered in the fat-filled epidural space, the outermost part of the spinal canal. This technique is commonly employed for pain management and anesthesia during lower abdomen and pelvis surgeries or labor and delivery.
Since epidural anesthetics can be infused through an epidural catheter, all types of drugs, including short-acting ones, can be administered. Chloroprocaine and lidocaine are examples of short and long-duration anesthetics, respectively. Bupivacaine...
1.0K

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Related Experiment Video

Updated: Apr 24, 2026

In Vivo Electrophysiological Measurements on Mouse Sciatic Nerves
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Propofol's effect on the sciatic nerve: Harmful or protective?

Yi Sun1, Xizhe Zhang1, Qi Zhou1

  • 1Chifeng Municipal Hospital, Chifeng 024000, Inner Mongolia Autonomous Region, China.

Neural Regeneration Research
|September 11, 2014
PubMed
Summary

Propofol reduces inflammation and nerve cell death after sciatic nerve injury in mice. This promotes nerve regeneration and improves nerve function.

Keywords:
grant-supported paperimmunosuppressioninflammatory responsemyelin sheathnerve conductionneural regenerationneuroregenerationnuclear factor kappa Bperipheral nerve injurypropofolsciatic nerve injury

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Area of Science:

  • Neuroscience
  • Immunology
  • Pharmacology

Background:

  • Sciatic nerve injury triggers inflammatory responses and cytokine release from astrocytes.
  • These responses can exacerbate nerve damage and impede regeneration.

Purpose of the Study:

  • To investigate the effects of propofol on sciatic nerve injury in a mouse model.
  • To determine if propofol can mitigate inflammation, apoptosis, and nerve damage.

Main Methods:

  • Propofol was administered following sciatic nerve injury in mice.
  • Evaluated changes in nuclear factor kappa B (NF-κB) expression, apoptosis, myelin integrity, and nerve conduction.

Main Results:

  • Propofol injection reduced NF-κB expression in the spinal cord.
  • Decreased apoptosis and alleviated nerve myelin defects were observed.
  • Nerve conduction block was lessened, indicating improved nerve function.

Conclusions:

  • Propofol effectively inhibits inflammatory and immune responses post-sciatic nerve injury.
  • Reduced NF-κB expression and apoptosis contribute to nerve regeneration.
  • Propofol demonstrates therapeutic potential for promoting recovery from sciatic nerve injury.