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Molecular Mechanisms of Pain and Analgesia

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Pathology, Diagnostics, and Therapeutics".

Deadline for manuscript submissions: 20 November 2025 | Viewed by 10656

Special Issue Editors


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Guest Editor
Department of Oral Physiology, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea
Interests: synaptic transmission and plasticity in the spinal dorsal horn and the spinal trigeminal nucleus; glutamate receptors and ion channels; mechanisms of pain including orofacial pain; brain circuitry modulating pain signals

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Guest Editor
Department of Physiology, College of Medicine, Yonsei University, Seoul, Republic of Korea
Interests: acupuncture; visceral organ; mechanical stimulation; mesolimbic dopamine system
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Special Issue Information

Dear Colleagues,

Pain, an intricate and pervasive phenomenon, remains one of the most difficult challenges in human health. This unwelcome guest can linger, intrude, and disrupt the essence of our lives. Despite its omnipresence, our understanding of the molecular mechanisms orchestrating pain perception and our quest for effective analgesic interventions continue to evolve, pushing the boundaries of scientific knowledge.

The scope of this special issue includes, but is not limited to: molecules that play roles in pain sensation, transmission, and perception, such as structural proteins, signaling proteins, transcriptional factors, receptors, ion channels, genes, and so on. The scope also includes altered neural circuitries and abnormal peripheral and central nervous system functions that contribute to the modulation of normal sensory transmission and integration. In addition, relationships of pain with other abnormal brain diseases, such as psychiatric (e.g., anxiety, depression, schizophrenia, and addiction) and neurodegenerative (e.g., Alzheimer’s disease and Parkinson's disease) diseases, are included. Therefore, We invite researchers, clinicians, and scientists to submit manuscripts (original research or review) on the following topics, but not limited to:

  1. Molecular pathways involved in nociception, inflammatory pain, and neuropathic pain.
  2. Neurotransmitters and receptors in pain signaling.
  3. Genetics and epigenetics of pain susceptibility.
  4. Novel drug targets for analgesia.
  5. Emerging technologies in pain research.
  6. Alternative and complementary approaches to pain relief.

Dr. Dong-Ho Youn
Dr. Hee Young Kim
Guest Editors

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Keywords

  • pain
  • analgesia
  • sensory transmission and integration
  • molecular pathways
  • pain genes
  • drug targets

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Published Papers (3 papers)

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Review

20 pages, 1598 KiB  
Review
The Trigeminal Sensory System and Orofacial Pain
by Hyung Kyu Kim, Ki-myung Chung, Juping Xing, Hee Young Kim and Dong-ho Youn
Int. J. Mol. Sci. 2024, 25(20), 11306; https://doi.org/10.3390/ijms252011306 - 21 Oct 2024
Cited by 5 | Viewed by 4057
Abstract
The trigeminal sensory system consists of the trigeminal nerve, the trigeminal ganglion, and the trigeminal sensory nuclei (the mesencephalic nucleus, the principal nucleus, the spinal trigeminal nucleus, and several smaller nuclei). Various sensory signals carried by the trigeminal nerve from the orofacial area [...] Read more.
The trigeminal sensory system consists of the trigeminal nerve, the trigeminal ganglion, and the trigeminal sensory nuclei (the mesencephalic nucleus, the principal nucleus, the spinal trigeminal nucleus, and several smaller nuclei). Various sensory signals carried by the trigeminal nerve from the orofacial area travel into the trigeminal sensory system, where they are processed into integrated sensory information that is relayed to higher sensory brain areas. Thus, knowledge of the trigeminal sensory system is essential for comprehending orofacial pain. This review elucidates the individual nuclei that comprise the trigeminal sensory system and their synaptic transmission. Additionally, it discusses four types of orofacial pain and their relationship to the system. Consequently, this review aims to enhance the understanding of the mechanisms underlying orofacial pain. Full article
(This article belongs to the Special Issue Molecular Mechanisms of Pain and Analgesia)
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19 pages, 1443 KiB  
Review
Advancements in Non-Addictive Analgesic Diterpenoid Alkaloid Lappaconitine: A Review
by Wen Zhang, Shujuan Mi, Xinxin He, Jiajia Cui, Kangkang Zhi and Ji Zhang
Int. J. Mol. Sci. 2024, 25(15), 8255; https://doi.org/10.3390/ijms25158255 - 29 Jul 2024
Cited by 1 | Viewed by 1776
Abstract
The perennial herb Aconitum sinomontanum Nakai (Ranunculaceae) has been utilized as a traditional oriental medicine in China for numerous years. The principal pharmacological constituent of A. sinomontanum, lappaconitine (LA), exhibits analgesic, anti-inflammatory, anti-tumor, anti-arrhythmic, and anti-epileptic activities. Due to its potent efficacy [...] Read more.
The perennial herb Aconitum sinomontanum Nakai (Ranunculaceae) has been utilized as a traditional oriental medicine in China for numerous years. The principal pharmacological constituent of A. sinomontanum, lappaconitine (LA), exhibits analgesic, anti-inflammatory, anti-tumor, anti-arrhythmic, and anti-epileptic activities. Due to its potent efficacy and non-addictive nature, LA is widely utilized in the management of cancer pain and postoperative analgesia. This review encompasses the research advancements pertaining to LA including extraction methods, separation techniques, pharmacological properties, chemical modifications, and clinical applications. Additionally, it offers insights into the potential applications and current challenges associated with LA to facilitate future research endeavors. Full article
(This article belongs to the Special Issue Molecular Mechanisms of Pain and Analgesia)
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15 pages, 323 KiB  
Review
Mechanisms and Preventative Strategies for Persistent Pain following Knee and Hip Joint Replacement Surgery: A Narrative Review
by Jasper Murphy, Sery Pak, Lana Shteynman, Ian Winkeler, Zhaosheng Jin, Martin Kaczocha and Sergio D. Bergese
Int. J. Mol. Sci. 2024, 25(9), 4722; https://doi.org/10.3390/ijms25094722 - 26 Apr 2024
Cited by 6 | Viewed by 4000
Abstract
Chronic postsurgical pain (CPSP) following total knee arthroplasty (TKA) and total hip arthroplasty (THA) is a prevalent complication of joint replacement surgery which has the potential to decrease patient satisfaction, increase financial burden, and lead to long-term disability. The identification of risk factors [...] Read more.
Chronic postsurgical pain (CPSP) following total knee arthroplasty (TKA) and total hip arthroplasty (THA) is a prevalent complication of joint replacement surgery which has the potential to decrease patient satisfaction, increase financial burden, and lead to long-term disability. The identification of risk factors for CPSP following TKA and THA is challenging but essential for targeted preventative therapy. Recent meta-analyses and individual studies highlight associations between elevated state anxiety, depression scores, preoperative pain, diabetes, sleep disturbances, and various other factors with an increased risk of CPSP, with differences observed in prevalence between TKA and THA. While the etiology of CPSP is not fully understood, several factors such as chronic inflammation and preoperative central sensitization have been identified. Other potential mechanisms include genetic factors (e.g., catechol-O-methyltransferase (COMT) and potassium inwardly rectifying channel subfamily J member 6 (KCNJ6) genes), lipid markers, and psychological risk factors (anxiety and depression). With regards to therapeutics and prevention, multimodal pharmacological analgesia, emphasizing nonopioid analgesics like acetaminophen and non-steroidal anti-inflammatory drugs (NSAIDs), has gained prominence over epidural analgesia. Nerve blocks and local infiltrative anesthesia have shown mixed results in preventing CPSP. Ketamine, an N-methyl-D-aspartate (NMDA)-receptor antagonist, exhibits antihyperalgesic properties, but its efficacy in reducing CPSP is inconclusive. Lidocaine, an amide-type local anesthetic, shows tentative positive effects on CPSP. Selective serotonin reuptake inhibitors (SSRIs) and serotonin norepinephrine reuptake inhibitors (SNRIs) have mixed results, while gabapentinoids, like gabapentin and pregabalin, present hopeful data but require further research, especially in the context of TKA and THA, to justify their use for CPSP prevention. Full article
(This article belongs to the Special Issue Molecular Mechanisms of Pain and Analgesia)
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