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Related Concept Videos

Analgesia and Pain Management01:25

Analgesia and Pain Management

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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...
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Nociception01:44

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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.
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Pain01:20

Pain

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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...
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The JAK-STAT Signaling Pathway01:20

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Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as  SH2...
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Small GTPases - Ras and Rho01:24

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Ras and Rho are small monomeric GTPases that act downstream of receptor tyrosine kinase (RTK) and regulate various cellular processes. These GTPases switch between active and inactive states by binding to guanine nucleotides.
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Blood and Nerve Supply to the Bones01:29

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Bones are dynamic organs that require a rich supply of oxygen and nutrients. Around 5% to 10% of the cardiac output supplies blood to the bones. A typical long bone has three main sources: the nutrient artery, the metaphyseal and epiphyseal arteries, and the periosteal arteries.
Nutrient Artery
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Exploring the Role of RhoA/ROCK Signaling in Pain: A Narrative Review.

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    Area of Science:

    • Neuroscience
    • Molecular Biology
    • Pharmacology

    Background:

    • Pain remains a significant clinical challenge despite advances in understanding its mechanisms.
    • The Ras homolog gene family member A (RhoA) is a GTPase involved in cellular signaling.
    • RhoA signals through downstream effectors, notably Rho-associated kinase (ROCK).

    Purpose of the Study:

    • To investigate the role of the RhoA/ROCK signaling pathway in pain transmission and sensitization.
    • To explore the therapeutic potential of targeting the RhoA/ROCK pathway for pain alleviation.

    Main Methods:

    • This study focuses on the molecular mechanisms of pain signaling.
    • Investigated the involvement of the RhoA/ROCK pathway in cellular processes related to pain.

    Main Results:

    • Emerging evidence indicates the RhoA/ROCK pathway is critical for pain transmission.
    • This pathway is also implicated in the sensitization processes that contribute to chronic pain.

    Conclusions:

    • The RhoA/ROCK signaling pathway represents a key player in the neurobiology of pain.
    • Targeting the RhoA/ROCK pathway offers a promising therapeutic strategy for managing pain conditions.