Lack of temperature-induced polypnea in histamine H1 receptor-deficient mice

Masahiko Izumizaki, Michiko Iwase, Hiroshi Kimura, Kazuhiko Yanai, Takehiko Watanabe, Takeshi Watanabe, Ikuo Homma

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9 Citations (Scopus)

Abstract

Breathing patterns are influenced by body temperature. However, the central mechanism for changes of breathing patterns is unknown. We previously showed that central histamine contributed to temperature-induced polypnea in mice (Izumizaki, M., Iwase, M., Homma, I., Yanai, K., Watanabe, T. and Watanabe, T., Central histamine contributed to the temperature-induced polypnea in mice, Neurosci. Res., 23 (1999) S282). In this study we examined the role of central histamine H1 receptors in temperature-induced polypnea using wild and mutant mice lacking histamine H1 receptors. Breathing patterns were characterized at two different body temperatures during hypercapnia under conscious conditions. In wild mice a raised body temperature increased respiratory frequency mainly due to a reduction in expiratory time, whereas in mutant mice respiratory frequency did not increase even though the body temperature was elevated. These results indicate that central histamine contributes to an increase in respiratory frequency due to a reduction in expiratory time through histamine H1 receptors when body temperature is raised. Copyright (C) 2000 Elsevier Science Ireland Ltd.

Original languageEnglish
Pages (from-to)139-142
Number of pages4
JournalNeuroscience Letters
Volume284
Issue number3
DOIs
Publication statusPublished - 2000 Apr 28

Keywords

  • Body temperature
  • Breathing pattern
  • Carbon dioxide
  • Expiratory time
  • Heat loss
  • Histamine H1 receptors

ASJC Scopus subject areas

  • Neuroscience(all)

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  • Cite this

    Izumizaki, M., Iwase, M., Kimura, H., Yanai, K., Watanabe, T., Watanabe, T., & Homma, I. (2000). Lack of temperature-induced polypnea in histamine H1 receptor-deficient mice. Neuroscience Letters, 284(3), 139-142. https://doi.org/10.1016/S0304-3940(00)01000-4