Somatotopic Organization and Intensity Dependence in Driving Distinct NPY-Expressing Sympathetic Pathways by Electroacupuncture.

Somatotopic Organization and Intensity Dependence in Driving Distinct NPY-Expressing Sympathetic Pathways by Electroacupuncture.
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DOI:
10.1016/j.neuron.2020.07.015
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发表时间:
2020-11-11
期刊:
影响因子:
16.2
通讯作者:
Ma Q
Ma Q
中科院分区:
医学1区
文献类型:
--
作者:
Liu S;Wang ZF;Su YS;Ray RS;Jing XH;Wang YQ;Ma Q

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针灸实践背后的神经解剖学基础仍然知之甚少。在这里,我们使用交叉遗传策略消融NPY+去甲肾上腺素能神经元和/或肾上腺嗜铬细胞。使用内毒素诱导的全身炎症作为模型,我们发现,电针刺激(ES)驱动交感神经通路的躯体和强度依赖性的方式。后肢区域的低强度ES驱动迷走-肾上腺轴,产生依赖于NPY+肾上腺嗜铬细胞的抗炎作用。腹部的高强度ES通过脊髓-交感神经轴激活NPY+脾去甲肾上腺素能神经元;这些神经元通过激活不同的肾上腺素能受体(AR)参与不连贯的前馈调节回路,并且由于AR谱的疾病状态依赖性变化,其ES诱发的激活产生抗炎或促炎作用。在驱动不同的自主神经通路的躯体组织和强度依赖性的启示可以形成一个路线图,优化刺激参数,以提高疗效和安全性,在使用针灸作为一种治疗方式。Liu等人揭示了针灸实践的神经解剖学基础,表明电针刺激可以驱动不同的自主神经通路,并以躯体适应性、刺激强度和疾病状态依赖性方式调节全身炎症。
The neuroanatomical basis behind acupuncture practice is still poorly understood. Here we used intersectional genetic strategy to ablate NPY+ noradrenergic neurons and/or adrenal chromaffin cells. Using endotoxin-induced systemic inflammation as a model, we found that electroacupuncture stimulation (ES) drives sympathetic pathways in somatotopy- and intensity-dependent manners. Low intensity ES at hindlimb regions drives the vagal-adrenal axis, producing anti-inflammatory effects that depend on NPY+ adrenal chromaffin cells. High intensity ES at the abdomen activates NPY+ splenic noradrenergic neurons via the spinal-sympathetic axis; these neurons engage incoherent feedforward regulatory loops via activation of distinct adrenergic receptors (ARs), and their ES-evoked activation produces either anti- or pro-inflammatory effects due to disease state-dependent changes in AR profiles. The revelation of somatotopic organization and intensity dependency in driving distinct autonomic pathways could form a road map for optimizing stimulation parameters to improve both efficacy and safety in using acupuncture as a therapeutic modality. Liu et al. reveals a neuroanatomical basis for acupuncture practice, showing that electroacupuncture stimulation can drive distinct autonomic pathways and modulate systemic inflammation in somatotopy-, stimulation intensity- and disease state-dependent manners.
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