{"title":"去甲肾上腺素能对三叉神经节神经元强直性发射的影响","authors":"M. Telka, V. Maslov, M. Veselovsky, S.A. Fedulova","doi":"10.15407/fz70.01.014","DOIUrl":null,"url":null,"abstract":"Adrenoreceptors play a key role in sympathetic influences on sensory neurons in normal and neuropathic conditions. We studied noradrenaline action on tonic firing in cultured rat trigeminal ganglion neurons. In a majority of the neurons (68%), Noradrenaline application had no marked effect on the firing properties. The rest of the cells (32%) were highly sensitive to noradrenaline action; they lost the ability to tonic firing and single action potential parameters significantly changed. It was established that NA-induced action on the firing is mainly due to the activation kinetics slowing of voltage-gated calcium channels. The data suggest a possibility of differential sympatho-sensory interaction in the trigeminal pathways.","PeriodicalId":12307,"journal":{"name":"Fiziolohichnyĭ zhurnal","volume":"135 4","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"NORADRENERGIC INFLUENCE ON TONIC FIRING IN TRIGEMINAL GANGLION NEURONS\",\"authors\":\"M. Telka, V. Maslov, M. Veselovsky, S.A. Fedulova\",\"doi\":\"10.15407/fz70.01.014\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Adrenoreceptors play a key role in sympathetic influences on sensory neurons in normal and neuropathic conditions. We studied noradrenaline action on tonic firing in cultured rat trigeminal ganglion neurons. In a majority of the neurons (68%), Noradrenaline application had no marked effect on the firing properties. The rest of the cells (32%) were highly sensitive to noradrenaline action; they lost the ability to tonic firing and single action potential parameters significantly changed. It was established that NA-induced action on the firing is mainly due to the activation kinetics slowing of voltage-gated calcium channels. The data suggest a possibility of differential sympatho-sensory interaction in the trigeminal pathways.\",\"PeriodicalId\":12307,\"journal\":{\"name\":\"Fiziolohichnyĭ zhurnal\",\"volume\":\"135 4\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Fiziolohichnyĭ zhurnal\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.15407/fz70.01.014\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Fiziolohichnyĭ zhurnal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.15407/fz70.01.014","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
NORADRENERGIC INFLUENCE ON TONIC FIRING IN TRIGEMINAL GANGLION NEURONS
Adrenoreceptors play a key role in sympathetic influences on sensory neurons in normal and neuropathic conditions. We studied noradrenaline action on tonic firing in cultured rat trigeminal ganglion neurons. In a majority of the neurons (68%), Noradrenaline application had no marked effect on the firing properties. The rest of the cells (32%) were highly sensitive to noradrenaline action; they lost the ability to tonic firing and single action potential parameters significantly changed. It was established that NA-induced action on the firing is mainly due to the activation kinetics slowing of voltage-gated calcium channels. The data suggest a possibility of differential sympatho-sensory interaction in the trigeminal pathways.
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