Evidence for in vivo cerebrovascular neurogenic vasodilatation in the rat

Norihiro Suzuki, Fumio Gotoh, Jun Gotoh, Atsuo Koto

研究成果: Article査読

13 被引用数 (Scopus)

抄録

To determine the function of cerebrovascular parasympathetic nerves, the calibre of rat pial arteries was continuously measured when the nerves (the postganglionic fibres originating from the sphenopalatine ganglion) were electrically stimulated in vivo. The pial arteries (72.3 ± 2.8 μm) dilated immediately after electrical stimulation (5 V, 10 Hz, 0.5 ms, 1 min duration). Their diameter increased 4.7 ± 0.1% (p < 0.01), 6.3 ± 1.7%, 5.1 ± 0.3% (p < 0.05), 6.3 ± 1.4%, at 15, 30, 45 and 60 s after initiation of stimulation, respectively. No significant change was observed in systemic arterial blood pressure or the expiratory carbon dioxide content during stimulation. This is the first direct demonstration of in vivo cerebrovascular neurogenic vasodilatation in the rat.

本文言語English
ページ(範囲)23-26
ページ数4
ジャーナルClinical Autonomic Research
1
1
DOI
出版ステータスPublished - 1991 3月 1

ASJC Scopus subject areas

  • 内分泌系および自律システム
  • 臨床神経学

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