Intraperitoneal injection of lithium chloride induces lateralized activation of the insular cortex in adult mice.

Intraperitoneal injection of lithium chloride induces lateralized activation of the insular cortex in adult mice.
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腹腔注射氯化锂诱导成年小鼠岛叶皮质的侧化激活

DOI:
10.1186/s13041-021-00780-z
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发表时间:
2021-04-19
期刊:
影响因子:
3.6
通讯作者:
Qiu S
Qiu S
中科院分区:
医学3区
文献类型:
--
作者:
Qian K;Liu J;Cao Y;Yang J;Qiu S

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岛叶皮层是参与内感受的重要脑区。在这里,我们结合了iDISCO +方法和Fos免疫染色,以确认成年雄性小鼠右侧岛叶皮质的中间部分,而不是左侧,通过腹腔注射氯化锂激活。在成年雌性小鼠中也观察到岛叶皮层的偏侧化激活,但在年轻或老年雄性小鼠中未观察到。此外,不对称激活的岛叶皮层完全阻断时,两侧迷走神经被切断,而静脉注射氯化锂对岛叶激活没有影响。结合在一起,这些结果表明,岛叶皮层单方面反应厌恶内脏刺激的年龄依赖性的方式,这一过程取决于迷走神经传入通路。
Insular cortex is a critical brain region that participates in the interoceptive sensations. Here, we combined the iDISCO + method and Fos immunostaining to confirm that the middle part of the right-side, but not the left-side, insular cortex in adult male mice is activated by intraperitoneal injection of lithium chloride. Lateralized activation of the insular cortex is also observed in adult female mice, but not in young or aged male mice. Furthermore, asymmetrical activation of the insular cortex was completely blocked when both sides of the vagal nerve are transected, whereas intravenous injection of lithium chloride has no effect on the insular activation. Combined together, these results indicate that the insular cortex unilaterally responds to aversive visceral stimuli in an age-dependent way and this process depends on the vagal afferent pathways.
DOI: 10.1126/science.1145590
发表时间: 2007-10-26
期刊: SCIENCE
影响因子: 56.9
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