Sex differences in peripheral not central immune responses to pain-inducing injury.

Sex differences in peripheral not central immune responses to pain-inducing injury.
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DOI:
10.1038/s41598-017-16664-z
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发表时间:
2017-11-28
期刊:
影响因子:
4.6
通讯作者:
Denk F
Denk F
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Lopes DM;Malek N;Edye M;Jager SB;McMurray S;McMahon SB;Denk F

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女性比男性更经常遭受慢性疼痛。目前尚不清楚这是否是由于更高层次的认知过程或基本的伤害性反应的差异。在这项研究中,我们使用了神经性疼痛的小鼠模型来分离这些因素。我们对纯化的外周传入神经元进行了RNA-seq,但发现雄性和雌性小鼠之间的基因表达没有显着差异,无论是在神经损伤之前还是之后。同样,当通过流式细胞术或qRT-PCR研究时,性别之间的脊髓免疫应答似乎无法区分。差异仅出现在研究外周免疫细胞浸润到背根神经节,这表明适应性免疫反应在神经性疼痛可能是性二态性。
Women suffer chronic pain more frequently than men. It is not clear whether this is due to differences in higher level cognitive processes or basic nociceptive responses. In this study we used a mouse model of neuropathic pain to dissociate these factors. We performed RNA-seq on purified peripheral afferent neurons, but found no striking differences in gene expression between male and female mice, neither before nor after nerve injury. Similarly, spinal cord immune responses between the sexes appeared to be indistinguishable when studied by flow cytometry or qRT-PCR. Differences emerged only upon studying peripheral immune cell infiltration into the dorsal root ganglion, suggesting that adaptive immune responses in neuropathic pain could be sexually dimorphic.
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