論文

査読有り
2011年7月

Age-related change in the effect of gentle mechanical cutaneous stimulation on the somato-cardiac sympathetic C-reflex.

The journal of physiological sciences : JPS
  • Nobuhiro Watanabe
  • ,
  • Sae Uchida
  • ,
  • Harumi Hotta

61
4
開始ページ
287
終了ページ
91
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1007/s12576-011-0146-y

This study examined whether aging influences the effect of gentle mechanical cutaneous stimulation (touch) on somato-cardiac sympathetic reflexes in anesthetized rats. A single electrical stimulus (15 V, 0.5 ms) applied to the tibial nerve induced somato-cardiac sympathetic A- and C-reflexes, which originated from the myelinated A- and unmyelinated C-fibers of the tibial nerve, respectively. When touch was applied to the inner thigh ipsilateral to the electrical stimulation, the C-reflex was selectively inhibited in adult rats (4-12 months), and this response was abolished by the opioid receptor antagonist, naloxone. Such an inhibitory effect of touch was impaired in aged rats (26-30 months). In contrast, depression of both A- and C-reflexes during a phenylephrine-induced rise in blood pressure was well maintained in the aged group. This study indicates that activation of the opioidergic system by gentle mechanical cutaneous stimulation attenuates with aging.

リンク情報
DOI
https://doi.org/10.1007/s12576-011-0146-y
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/21476123
ID情報
  • DOI : 10.1007/s12576-011-0146-y
  • PubMed ID : 21476123

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