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Related Concept Videos

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...
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...
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...
Local Anesthetics: Differential Sensitivity of Nerve Fibers01:24

Local Anesthetics: Differential Sensitivity of Nerve Fibers

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...
Thermosensation01:43

Thermosensation

Peripheral thermosensation is the perception of external temperature. A change in temperature (on the surface of the skin and other tissues) is detected by a family of temperature-sensitive ion channels called Transient Receptor Potential, or TRP, receptors. These receptors are located on free nerve endings. Those detecting cold temperatures are closer to the surface of the skin than the nerve endings detecting warmth. These thermoTRP channels, while temperature selective, have relatively...

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Studying the Coding Profiles of Somatic Stimulation on Cardiac-locked Neuronal Responses in the Rat Spinal Dorsal Horn
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Modulation of central nociceptive coding by acupoint stimulation.

Fei Luo1, Jin-Yan Wang

  • 1Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, 10A Datun Road, Chaoyang District, Beijing 100101, People's Republic of China. luof@psych.ac.cn

Neurochemical Research
|April 12, 2008
PubMed
Summary
This summary is machine-generated.

Acupuncture effectively relieves pain by influencing neurotransmitters and gene expression in the brain and spinal cord. This review explores the neural networks involved in acupuncture analgesia, enhancing our understanding of pain modulation.

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Area of Science:

  • Neuroscience
  • Pain Management
  • Integrative Medicine

Background:

  • Acupuncture is widely recognized for its pain-relieving properties.
  • Significant advancements have been made in understanding the central mechanisms of acupuncture analgesia.
  • These mechanisms involve neurotransmitter release and gene expression in the central nervous system.

Purpose of the Study:

  • To review the current understanding of the neural network underlying acupuncture analgesia.
  • To explore the role of higher-level brain areas in acupuncture-mediated pain modulation.
  • To synthesize recent findings on brain network patterns in pain perception and modulation.

Main Methods:

  • Review of existing literature on acupuncture and pain mechanisms.
  • Analysis of studies utilizing advanced neuroimaging and molecular techniques.
  • Synthesis of data on spinal cord and brainstem pathways involved in pain modulation.

Main Results:

  • Acupuncture modulates pain through complex neural pathways in the brain and spinal cord.
  • Neurotransmitter release and gene expression changes are key components of acupuncture's analgesic effect.
  • Higher-level brain areas play a crucial role in mediating acupuncture analgesia.

Conclusions:

  • Acupuncture analgesia involves intricate neural network modulation.
  • Further research using advanced techniques continues to elucidate these mechanisms.
  • Understanding these networks offers potential for improved pain management strategies.