Related Experiment Video
Updated: Sep 21, 2025

07:12
Chronic Post-Ischemia Pain Model for Complex Regional Pain Syndrome Type-I in Rats
Published on: January 21, 2020
7.8K
Pain Science in Practice (Part 3): Peripheral Sensitization
Summary
Tissue injury causes inflammation and sensitization, explaining why injuries hurt. This involves peripheral sensitization, neurogenic inflammation, and the axon reflex, crucial for understanding pain science.
Area of Science:
- Neuroscience
- Pain Science
- Physiology
Background:
- Tissue injuries commonly trigger inflammation and sensitization, a fundamental neuroscience principle explaining pain perception.
- Peripheral sensitization is intrinsically linked to hyperalgesia, inflammation, and various clinical pain states, including acute injuries and rheumatic diseases.
Discussion:
- This editorial delves into the mechanisms of peripheral sensitization, neurogenic inflammation, and the axon reflex.
- It highlights the critical roles of second messengers and peptidergic C-fibers in these pain pathways.
Key Insights:
- Peripheral sensitization is a core concept in pain science, directly resulting from tissue injury.
- Understanding neurogenic inflammation and the axon reflex is key to comprehending pain mechanisms.
Outlook:
- Further research into second messengers and peptidergic C-fibers could reveal novel therapeutic targets for pain management.
- This foundational knowledge is essential for clinicians managing patients with pain conditions.
Related Concept Videos
Nociception
29.6K
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.
29.6K
Analgesia and Pain Management
829
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...
829
Pain
648
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...
648
Local Anesthetics: Differential Sensitivity of Nerve Fibers
955
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...
955
Peripheral Artery Disease V: Postoperative Nursing Management
29
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...
29

