Capsaicin Increases Modulation of Sympathetic Nerve Activity in Rats : Measurement Using Power Spectral Analysis of Heart Rate Fluctuations

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概要

• 論文の詳細を見る

• We assessed the sympatho-vagal activities of the heart after administration of capsaicin by measuring the power spectral analysis in rats. There were major two frequency components of heart rate variability, which we defined as high (1.0 Hz<, HF) and low (LF, <1.0 Hz) frequency components. Vagal blockade by atropine abolished the high frequency component, and lowered the amplitude of the low frequency component. On the other hand, under conditions of sympathetic blockade by propranolol, the low frequency component was reduced. Combined vagal and sympathetic blockade abolished all heart rate fluctuations. We analyzed the low and high frequency components by integrating the spectrum for the respective band width. The rats administered capsaicin had a higher heart rate and sympathetic nervous system index (LF/HF) than the control group of rats. These results suggest that power spectral analysis is an effective and noninvasive method for detecting subtle changes in autonomic activity in response to the intake of foods or drugs.

• 社団法人日本農芸化学会の論文
• 2001-03-23

著者

• Fushiki Tohru

  Laboratory Of Nutrition Chemistry Division Of Food Science And Biotechnology Graduate School Of Agri

• Fushiki Tohru

  京都大学 農学研究科栄養化学分野

• OHNUKI Koichiro

  Laboratory of Nutrition Chemistry, Division of Food Science and Biotechnology, Graduate School of Ag

• MORITANI Toshio

  Laboratory of Applied Physiology, Graduate School of Human and Environmental Studies, Kyoto Universi

• Fushiki T

  Laboratory Of Nutrition Chemistry Division Of Food Science And Biotechnology Graduate School Of Agri

• Ishihara K

  Department Of Food And Nutrition School Of Life Studies Sugiyama Jogakuen University

• Ishihara Kengo

  Laboratory Of Nutrition Chemistry Division Of Applied Life Sciences Graduate School Of Agriculture K

• Moritani Toshio

  Laboratory Of Applied Physiology Graduate School Of Human And Environmental Studies Kyoto University

• Oki K

  User Sci. Inst. Kyushu Univ.

• Ohnuki Koichiro

  Laboratory Of Nutrition Chemistry Division Of Food Science And Biotechnology Graduate School Of Agri

• Fushiki Tohru

  Laboratory Of Nutrition Chemistry Division Of Food Science And Biotechnology Graduate School Of Agri

• Fushiki Tohru

  Laboratory Of Nutrition Chemistry Division Of Applied Life Sciences Graduate School Of Agriculture K

• Moritani Toshio

  Laboratory Of Nutritional Chemistry Department Of Applied Life Sciences Graduate School Of Agricultu

• Moritani Toshio

  Laboratory Of Applied Physiology Graduate School Of Human And Environmental Studies

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