Peripheral modulation of smell: fact or fiction?

Peripheral modulation of smell: fact or fiction?
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DOI:
10.1016/j.semcdb.2012.09.001
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发表时间:
2013-01
影响因子:
7.3
通讯作者:
Lucero, Mary T.
Lucero, Mary T.
中科院分区:
生物学2区
文献类型:
--
作者:
Lucero, Mary T.

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尽管30多年前的研究表明气味反应在嗅上皮水平上有调节作用,但大多数对嗅觉系统的描述推断,气味信号从嗅觉感觉神经元上的纤毛检测到嗅球时没有改变。最近对多种微绒毛细胞亚型的鉴定以及嗅觉粘膜中神经肽和神经递质表达的鉴定增加了越来越多的关于嗅觉外周调节的文献。复杂的机制包括周围受体事件、嗅觉频率的调节和感觉神经元特性的变化,这些机制与嗅觉感觉神经元对外部气味环境、内部营养状况、生殖状态以及觉醒或应激水平的敏感性相匹配。通过进一步了解调节外周嗅觉的参与者,我们可能会为调节健康和疾病嗅觉的新方法打开大门。
Despite studies dating back 30 or more years showing modulation of odorant responses at the level of the olfactory epithelium, most descriptions of the olfactory system infer that odorant signals make their way from detection by cilia on olfactory sensory neurons to the olfactory bulb unaltered. Recent identification of multiple subtypes of microvillar cells and identification of neuropeptide and neurotransmitter expression in the olfactory mucosa add to the growing body of literature for peripheral modulation in the sense of smell. Complex mechanisms including perireceptor events, modulation of sniff rates, and changes in the properties of sensory neurons match the sensitivity of olfactory sensory neurons to the external odorant environment, internal nutritional status, reproductive status, and levels of arousal or stress. By furthering our understanding of the players mediating peripheral olfaction, we may open the door to novel approaches for modulating the sense of smell in both health and disease.
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