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  1. 医学部
  1. 医学部
  2. 学術雑誌掲載論文  (医学部)

Voltage-dependent Nav1.7 sodium channels: multiple roles in adrenal chromaffin cells and peripheral nervous system

http://hdl.handle.net/10458/1805
http://hdl.handle.net/10458/1805
73ec96c3-ed10-40c6-b51b-81f106768575
名前 / ファイル ライセンス アクション
AP192-2.pdf AP192-2.pdf (1.1 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2009-02-05
タイトル
タイトル Voltage-dependent Nav1.7 sodium channels: multiple roles in adrenal chromaffin cells and peripheral nervous system
言語 en
言語
言語 eng
資源タイプ
資源タイプ journal article
著者 Wada, Akihiko

× Wada, Akihiko

WEKO 7909

en Wada, Akihiko

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Wanke, Enzo

× Wanke, Enzo

WEKO 9851

en Wanke, Enzo

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Gullo, Francesca

× Gullo, Francesca

WEKO 9852

en Gullo, Francesca

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Schiavon, Emanuele

× Schiavon, Emanuele

WEKO 9853

en Schiavon, Emanuele

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抄録
内容記述タイプ Abstract
内容記述 Voltage-dependent Na+ channels consist of the principal α-subunit (∼260 kDa), without or with auxiliary β-subunit (∼38 kDa). Nine α-subunit isoforms (Nav1.1–Nav1.9) are encoded in nine different genes (SCN1A–SCN5A and SCN8A–SCN11A). Besides initiating and propagating action potentials in established neuronal circuit, Na+ channels engrave, maintain and repair neuronal network in the brain throughout the life. Adrenal chromaffin cells express Nav1.7 encoded in SCN9A, which is widely distributed among peripheral autonomic and sensory ganglia, neuroendocrine cells, as well as prostate cancer cell lines. In chromaffin cells, Nav1.7-specific biophysical properties have been characterized; physiological stimulation by acetylcholine produces muscarinic receptor-mediated hyperpolarization followed by nicotinic receptor-mediated depolarization. In human patients with Nav1.7 channelopathies, gain-of-pathological function mutants (i.e. erythermalgia and paroxysmal extreme pain disorder) or loss-of-physiological function mutant (channelopathy-associated insensivity to pain) proved the causal involvement of mutant Nav1.7 in generating intolerable pain syndrome, Nav1.7 being the first molecular target convincingly identified for pain treatment. Importantly, aberrant upregulation/hyperactivity of even the native Nav1.7 produces pain associated with inflammation, nerve injury and diabetic neuropathy in rodents. Various extra- and intracellular signals, as well as therapeutic drugs modulate the activity of Nav1.7, and also cause up- and downregulation of Nav1.7. Nav1.7 seems to play an increasing number of crucial roles in health, disease and therapeutics.
言語 en
内容記述
内容記述タイプ Other
内容記述 Author Posting. © The Authors 2007 This is the author's version of the work. It is posted here for personal use, not for redistribution. The definitive version was published in "Acta physiologica", 192(2) pp221-232. http://dx.doi.org/10.1111/j.1748-1716.2007.01810.x
言語 en
書誌情報 en : Acta physiologica : official journal of the Federation of European Physiological Societies

巻 192, 号 2, p. 221-231, 発行日 2007-11-16
出版者
出版者 Blackwell Publishing
言語 en
ISSN
収録物識別子タイプ ISSN
収録物識別子 17481708
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA12107856
著者版フラグ
出版タイプ AM
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Wada, Akihiko, Wanke, Enzo, Gullo, Francesca, Schiavon, Emanuele, 2007, Voltage-dependent Nav1.7 sodium channels: multiple roles in adrenal chromaffin cells and peripheral nervous system: Blackwell Publishing, 221–231 p.

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