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  • Frontiers Media SA  (2)
  • Li, Bin  (2)
  • Lyu, Tian-Li  (2)
  • 2020-2024  (2)
Material
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  • Frontiers Media SA  (2)
Language
Years
  • 2020-2024  (2)
Year
  • 1
    Online Resource
    Online Resource
    Frontiers Media SA ; 2021
    In:  Frontiers in Neuroscience Vol. 15 ( 2021-6-7)
    In: Frontiers in Neuroscience, Frontiers Media SA, Vol. 15 ( 2021-6-7)
    Abstract: Electroacupuncture (EA) is widely used in clinical practice to relieve migraine pain. 5-HT 7 receptor (5-HT 7 R) has been reported to play an excitatory role in neuronal systems and regulate hyperalgesic pain and neurogenic inflammation. 5-HT 7 R could influence phosphorylation of protein kinase A (PKA)- or extracellular signal-regulated kinase 1 / 2 (ERK 1 / 2 )-mediated signaling pathways, which mediate sensitization of nociceptive neurons via interacting with cyclic adenosine monophosphate (cAMP). In this study, we evaluated the role of 5-HT 7 R in the antihyperalgesic effects of EA and the underlying mechanism through regulation of PKA and ERK 1 / 2 in trigeminal ganglion (TG) and trigeminal nucleus caudalis (TNC). Hyperalgesia was induced in rats with dural injection of inflammatory soup (IS) to cause meningeal neurogenic inflammatory pain. Electroacupuncture was applied for 15 min every other day before IS injection. Von Frey filaments, tail-flick, hot-plate, and cold-plated tests were used to evaluate the mechanical and thermal hyperalgesia. Neuronal hyperexcitability in TNC was studied by an electrophysiological technique. The 5-HT 7 R antagonist (SB269970) or 5-HT 7 R agonist (AS19) was administered intrathecally before each IS application at 2-day intervals during the 7-day injection protocol. The changes in 5-HT 7 R and 5-HT 7 R-associated signaling pathway were examined by real-time polymerase chain reaction (RT-PCR), Western blot, immunofluorescence, and enzyme-linked immunosorbent assay (ELISA) analyses. When compared with IS group, mechanical and thermal pain thresholds of the IS + EA group were significantly increased. Furthermore, EA prevented the enhancement of both spontaneous activity and evoked responses of second-order trigeminovascular neurons in TNC. Remarkable decreases in 5-HT 7 R mRNA expression and protein levels were detected in the IS + EA group. More importantly, 5-HT 7 R agonist AS19 impaired the antihyperalgesic effects of EA on p-PKA and p-ERK 1 / 2 . Injecting 5-HT 7 R antagonist SB-269970 into the intrathecal space of IS rats mimicked the effects of EA antihyperalgesia and inhibited p-PKA and p-ERK 1 / 2 . Our findings indicate that 5-HT 7 R mediates the antihyperalgesic effects of EA on IS-induced migraine pain by regulating PKA and ERK 1 / 2 in TG and TNC.
    Type of Medium: Online Resource
    ISSN: 1662-453X
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2021
    detail.hit.zdb_id: 2411902-7
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  • 2
    In: Frontiers in Neuroscience, Frontiers Media SA, Vol. 16 ( 2022-8-26)
    Abstract: The aim of this study was to evaluate the efficacy of acupuncture, an alternative medicine therapy, as a preventive treatment for menstruation-related migraine (MRM). Patients and methods This was a prospective, multicenter, double-dummy, participant-blinded, randomized controlled clinical trial conducted in China between 1 April 2013, and 30 April 2014. The participants were enrolled from four study centers and randomized to into either the acupuncture group, which received 24 sessions of acupuncture at traditional acupoints plus placebo, or the medication group, which received sham acupuncture plus naproxen. The primary endpoint was change from the baseline average number of migraine days per perimenstrual period over cycles 1−3. The secondary endpoints included changes from the baseline average number of migraine days outside the perimenstrual period, mean number of migraine hours during and outside the perimenstrual period, mean visual analog scale score during and outside the perimenstrual period, ≥50% migraine responder rate, and the proportion of participants who used acute pain medication over cycles 1−3 and 4−6. Results A total of 172 women with MRM were enrolled; 170 in the intention-to-treat analyses. Our primary outcome reported a significant between-group difference that favored the acupuncture group (95% CI, 0.17–0.50; P & lt; 0.001), with the average reduction of migraine days per perimenstrual period from the baseline was 0.94 (95% CI, 0.82–1.07) in the acupuncture group and 0.61 (95% CI, 0.50–0.71) in the medication group over cycles 1−3. Conclusion This study showed that compared to medication, acupuncture reduces the number of migraine days experienced by patients with MRM. For patients who received the acupuncture treatment over three cycles, the preventive effect of the therapy was sustained for six cycles. Clinical trial registration [ https://www.isrctn.com/ISRCTN57133712 ], identifier [ISRCTN15663606] .
    Type of Medium: Online Resource
    ISSN: 1662-453X
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2022
    detail.hit.zdb_id: 2411902-7
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
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