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Related Concept Videos

Analgesia and Pain Management01:25

Analgesia and Pain Management

Pain is critical to various clinical pathologies, provoking an urgent need for effective management. Pain, whether acute or chronic, is a complex neurochemical process. Its alleviation depends on the type, with nonopioid analgesics effective for mild to moderate pain, such as musculoskeletal or inflammatory pain, while neuropathic pain responds best to anticonvulsants, tricyclic antidepressants, or serotonin/norepinephrine reuptake inhibitors. For severe acute or chronic pain, opioids may be...
Nociception01:44

Nociception

Nociception—the ability to feel pain—is essential for an organism’s survival and overall well-being. Noxious stimuli such as piercing pain from a sharp object, heat from an open flame, or contact with corrosive chemicals are first detected by sensory receptors, called nociceptors, located on nerve endings. Nociceptors express ion channels that convert noxious stimuli into electrical signals. When these signals reach the brain via sensory neurons, they are perceived as pain. Thus, pain helps the...
Phase I Reactions: Reductive Reactions01:27

Phase I Reactions: Reductive Reactions

Phase I biotransformation reductive reactions are chemical processes that modify drugs by introducing or revealing polar functional groups via reduction. Enzymes called reductases catalyze these reactions, playing a pivotal role in drug metabolism by transforming lipophilic drugs into more polar, water-soluble metabolites for easy excretion. An essential type of reductive reaction is the carbonyl group reduction, where aldehydes and ketones are reduced to alcohols. An example is the...
Pain01:20

Pain

Pain serves as a critical warning signal that alerts the body to potential or actual harm. When mechanical pressure on the skin is intense, such as from a sharp pinch, the sensation transitions from touch to pain. Similarly, extreme temperatures, like a hot pot handle, convert the sensation of heat into pain. Pain can also result from overstimulation of other senses, such as blinding light, loud noise, or the intense heat from habañero peppers. This ability to sense pain is essential for...
Opioid Analgesics: Synthetic and Semisynthetic Opioids01:15

Opioid Analgesics: Synthetic and Semisynthetic Opioids

Synthetic and semisynthetic opioids are pivotal in pain management and tackling opioid addiction. Semisynthetic opioids, including morphinans (morphine derivatives), oxycodone, oxymorphone, hydrocodone, and hydromorphone, have improved pharmacokinetic profiles compared to morphine. Additionally, heroin and 6-MAM (6-Monoacetylmorphine) show better CNS penetration than morphine due to heightened lipid solubility. Hydromorphone, a potent opioid, undergoes hepatic metabolism to form the active...
Peripheral Artery Disease V: Postoperative Nursing Management01:23

Peripheral Artery Disease V: Postoperative Nursing Management

During the postoperative period, it is crucial to focus on maintaining circulation, identifying and managing potential complications, and planning for discharge.Nursing AssessmentVital signs monitoring: Regularly monitor vital signs, including blood pressure, heart rate, respiratory rate, and temperature, to detect early signs of complications such as bleeding and infection.Circulation assessment: Monitor pulses, perform Doppler assessments, and check capillary refill, color, temperature, and...

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Related Experiment Video

Updated: Jun 17, 2026

The Sciatic Nerve Cuffing Model of Neuropathic Pain in Mice
07:09

The Sciatic Nerve Cuffing Model of Neuropathic Pain in Mice

Published on: July 16, 2014

Reducing and eliminating neuropathic pain.

José Santiago-Figueroa1, Damien P Kuffler

  • 1Department of Orthopedic Surgery, Medical Sciences Campus, University of Puerto Rico, San Juan, Puerto Rico.

Puerto Rico Health Sciences Journal
|December 17, 2009
PubMed
Summary
This summary is machine-generated.

Neuropathic pain, affecting millions, stems from nervous system damage and is hard to treat. New, effective approaches are urgently needed to improve patient quality of life.

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Area of Science:

  • Neurology
  • Pain Medicine
  • Pharmacology

Background:

  • Neuropathic pain arises from nervous system lesions or dysfunction, causing hyperalgesia and allodynia.
  • It significantly impacts quality of life, affecting up to 5% of the population, including cancer and spinal cord injury patients.
  • Current treatments like antidepressants, anticonvulsants, and opioids offer limited relief and side effects.

Purpose of the Study:

  • To review current treatments for neuropathic pain.
  • To explore emerging and potential novel therapeutic strategies.
  • To address the unmet need for more effective neuropathic pain management.

Main Methods:

  • Literature review of existing and novel neuropathic pain treatments.
  • Examination of pharmacological and non-pharmacological interventions.
  • Analysis of symptom- and mechanism-based treatment approaches.

Main Results:

  • Pharmacological treatments often yield partial relief and side effects.
  • Alternative therapies include nerve blockade and spinal cord stimulators.
  • Understanding underlying causes remains limited, hindering effective treatment development.

Conclusions:

  • Neuropathic pain management remains challenging due to limited understanding and treatment efficacy.
  • There is a critical need for novel and effective therapeutic strategies.
  • Symptom- and mechanism-based approaches show promise but require further development.