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The role of nociceptive synaptic transmission modulation
Heleš, Mário ; Paleček, Jiří (advisor) ; Rokyta, Richard (referee) ; Krůšek, Jan (referee)
Pain represents a major symptom in a multitude of medical conditions and can often become the main negative factor in a patient's low quality of life. The complex issue of pain management is further underscored by the reduced efficacy of conventional analgesics in conditions such as neuropathic pain. Neuropathic pain, unlike acute nociceptive pain, originates from damage to the peripheral or central nervous system and often develops into chronic pain syndrome. Most analgesics available today provide only limited and unsatisfactory analgesia in chronic neuropathic pain and are often associated with severe adverse effects. Modulation of nociceptive transmission in spinal cord dorsal horn (SCDH) stands out in recent research as a pivotal mechanism, especially in chronic pain development and maintenance. The major aim of this doctoral thesis was to investigate how pain-associated processes interfere with opioid-induced analgesia, with the main focus on the interaction between chemokine (C-C motif) ligand 2 (CCL2), transient receptor potential vanilloid type 1 (TRPV1), and μ-opioid receptor (MOR). To achieve a better insight into opioid signaling in SCDH we studied the following issues: (I.) How does CCL2 modulate MOR-mediated effects on nociceptive synaptic transmission in SCDH neurons and in vivo...

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