Sex specific effects of "junk-food" diet on calcium permeable AMPA receptors and silent synapses in the nucleus accumbens core.

Sex specific effects of "junk-food" diet on calcium permeable AMPA receptors and silent synapses in the nucleus accumbens core.
复制标题

“垃圾食品”饮食对伏隔核钙渗透AMPA受体和沉默突触的性别特异性影响。

DOI:
10.1038/s41386-020-0781-1
复制
发表时间:
2021-03
期刊:
Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology
影响因子:
--
通讯作者:
Ferrario CR
Ferrario CR
中科院分区:
其他
文献类型:
--
作者:
Alonso-Caraballo Y;Fetterly TL;Jorgensen ET;Nieto AM;Brown TE;Ferrario CR

文献摘要

参考文献

被引文献

相似文献

位于中脑核(NAc)的CP-AMPAR介导了食物和可卡因的线索触发动机。此外,可卡因或含糖、高脂肪的垃圾食品可以诱导NAc CP-AMPAR表达和功能的增加。然而,这些改变的确切性质以及它们依赖于相同的潜在机制的程度还不清楚。这对于理解驱动食物和药物寻求行为的适应性与适应不良可塑性具有重要意义。此外,垃圾食品对女性神经可塑性的影响尚不清楚。在这里,我们使用蛋白质生物化学和全细胞膜片钳技术相结合,以确定饮食操作对男性和女性NAc内的多巴胺能可塑性的影响。我们发现,垃圾食品消费增加沉默突触,随后增加CP-AMPAR水平在雄性大鼠的NAc的男性。此外,短暂的垃圾食品剥夺需要CP-AMPAR的突触插入和男性沉默突触的成熟。与此相反,垃圾食品并没有诱导女性的AMPAR可塑性,但可能会改变NMDAR介导的传输。因此,这些研究揭示了垃圾食品对NAc突触可塑性影响的性别差异。此外,他们还为基本食物奖励如何改变NAc功能提供了新的见解。
CP-AMPARs in the nucleus accumbens (NAc) mediate cue-triggered motivation for food and cocaine. In addition, increases in NAc CP-AMPAR expression and function can be induced by cocaine or sugary, fatty junk-foods. However, the precise nature of these alterations and the degree to which they rely on the same underlying mechanisms is not well understood. This has important implications for understanding adaptive vs. maladaptive plasticity that drives food- and drug-seeking behaviors. Furthermore, effects of junk-foods on glutamatergic plasticity in females are unknown. Here, we use a combination of protein biochemistry and whole-cell patch clamping to determine effects of diet manipulation on glutamatergic plasticity within the NAc of males and females. We found that junk-food consumption increases silent synapses and subsequently increases CP-AMPAR levels in males in the NAc of male rats. In addition, a brief period of junk-food deprivation is needed for the synaptic insertion of CP-AMPARs and the maturation of silent synapses in males. In contrast, junk-food did not induce AMPAR plasticity in females but may instead alter NMDAR-mediated transmission. Thus, these studies reveal sex differences in the effects of junk-food on NAc synaptic plasticity. In addition, they provide novel insights into how essential food rewards alter NAc function.
DOI: 10.1038/npp.2009.187
发表时间: 2010-02
期刊: Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology
影响因子: --
作者:
通讯作者: --
DOI: 10.1038/375400a0
发表时间: 1995-06-01
期刊: NATURE
影响因子: 64.8
作者:
LIAO, DZ;HESSLER, NA;MALINOW, R
通讯作者: MALINOW, R
DOI: 10.1038/srep30900
发表时间: 2016-08-03
期刊: Scientific reports
影响因子: 4.6
作者:
Darling RA;Dingess PM;Schlidt KC;Smith EM;Brown TE
通讯作者: Brown TE
DOI: 10.1177/1073858415579405
发表时间: 2015-10
期刊: The Neuroscientist : a review journal bringing neurobiology, neurology and psychiatry
影响因子: --
作者:
Huang YH;Schlüter OM;Dong Y
通讯作者: Dong Y
DOI: 10.1038/nn1217
发表时间: 2004-04-01
影响因子: 25
作者:
Ito, R;Robbins, TW;Everitt, BJ
通讯作者: Everitt, BJ