Alpha lipoic acid attenuates evoked and spontaneous pain following surgical skin incision in rats.

Alpha lipoic acid attenuates evoked and spontaneous pain following surgical skin incision in rats.
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DOI:
10.1080/19336950.2021.1907058
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发表时间:
2021-12
期刊:
Channels (Austin, Tex.)
影响因子:
--
通讯作者:
Todorovic SM
Todorovic SM
中科院分区:
其他
文献类型:
--
作者:
Joksimovic SL;Lamborn N;Jevtovic-Todorovic V;Todorovic SM

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我们之前的研究表明,t型Ca2+通道(t通道)的CaV3.2亚型与术后疼痛的发生有关。我们之前也证实了不同的t通道拮抗剂可以减轻体内手术后疼痛。在此,我们研究了另一种t通道阻滞剂和内源性抗氧化分子α-硫辛酸(ALA)在大鼠术后疼痛模型中的镇痛电位。我们在体内的研究结果表明,手术后或先发制人的单次和重复腹腔注射ALA,可显著减少手术爪切开后引起的机械性痛觉过敏。此外,通过动态负重试验证实,反复先发制人全身注射ALA可有效缓解自发性术后疼痛。我们希望我们的临床前研究可以进一步研究ALA在手术患者中的镇痛特性和镇痛作用机制。
Our previous studies have implicated CaV3.2 isoform of T-type Ca2+ channels (T-channels) in the development of postsurgical pain. We have also previously established that different T-channel antagonists can alleviate in vivo postsurgical pain. Here we investigated the analgesic potential of another T-channel blocker and endogenous antioxidant molecule, α-lipoic acid (ALA), in a postsurgical pain model in rats. Our in vivo results suggest that single and repetitive intraperitoneal injections of ALA after surgery or preemptively, significantly reduced evoked mechanical hyperalgesia following surgical paw incision. Furthermore, repeated preemptive systemic injections of ALA effectively alleviated spontaneous postsurgical pain as determined by dynamic weight-bearing testing. We expect that our preclinical study may lead to further investigation of analgesic properties and mechanisms of analgesic action of ALA in patients undergoing surgery.
选择性抑制Ca(v)3.2通道逆转周围伤害感受器的过度兴奋,并减轻术后疼痛。
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