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Titolo:
Activity of neurons in the nucleus of the solitary tract of rats: effect of osmotic and mechanical stimuli
Autore:
Izawa, S; Inoue, K; Adachi, A; Funahashi, M;
Indirizzi:
Okayama Univ, Sch Dent, Dept Oral Physiol, Okayama 7008525, Japan Okayama Univ Okayama Japan 7008525 Oral Physiol, Okayama 7008525, Japan Kyushu Univ Hlth & Welf, Dept Clin Welf Serv, Miyazaki 8828508, Japan Kyushu Univ Hlth & Welf Miyazaki Japan 8828508 , Miyazaki 8828508, Japan Okayama Univ, Sch Dent, Dept Operat Dent, Okayama 7008525, Japan Okayama Univ Okayama Japan 7008525 t Operat Dent, Okayama 7008525, Japan
Titolo Testata:
NEUROSCIENCE LETTERS
fascicolo: 1, volume: 288, anno: 2000,
pagine: 33 - 36
SICI:
0304-3940(20000707)288:1<33:AONITN>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
ACTIVATED ION CHANNELS; SUPRAOPTIC NEURONS; OSMOSENSITIVITY; PATTERNS; INVITRO;
Keywords:
nucleus tractus solitarius; osmosensitivity; mechanosensitivity; brain slices; whole-cell current-clamp; rat;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
20
Recensione:
Indirizzi per estratti:
Indirizzo: Funahashi, M Okayama Univ, Sch Dent, Dept Oral Physiol, Shikata Cho, Okayama 7008525, Japan Okayama Univ Shikata Cho Okayama Japan 7008525 008525, Japan
Citazione:
S. Izawa et al., "Activity of neurons in the nucleus of the solitary tract of rats: effect of osmotic and mechanical stimuli", NEUROSCI L, 288(1), 2000, pp. 33-36

Abstract

Patch-clamp recordings were used to examine the osmosensitivity and mechanosensitivity of neurons in the caudal part of the nucleus tractus solitarius in coronal slices from rat brain. Firing rates and membrane potentials were measured as slices were exposed to perfusate which varied in its osmolarity and/or sodium concentration. In all cells tested, the responses to change in the sodium concentration of perfusate were duplicated by osmolality changes of sucrose or mannitol. When nucleus tractus solitarius cells were tested with changes in pressure applied via the pipette, responses to positive or negative pressure paralleled their responses to osmotic stimulation. We suggest that a mechanosensitive receptor exists on osmosensitive neuronswithin the nucleus tractus solitarius, and this receptor may be responsible for changes in the firing rate and membrane potential wh ich occur in thenucleus tractus solitarius neurons. (C) 2000 Published by Elsevier ScienceIreland Ltd.

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Documento generato il 03/04/20 alle ore 12:28:57