Aerobic exercise training increases plasma Klotho levels and reduces arterial stiffness in postmenopausal women

Tomoko Matsubara, Asako Miyaki, Nobuhiko Akazawa, Youngju Choi, Song Gyu Ra, Koichiro Tanahashi, Hiroshi Kumagai, Satoshi Oikawa, Seiji Maeda

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

The Klotho gene is a suppressor of the aging phenomena, and the secretion as well as the circulation of Klotho proteins decrease with aging. Although habitual exercise has antiaging effects (e.g., a decrease in arterial stiffness), the relationship between Klotho and habitual exercise remains unclear. In the present study, we investigated the effect of habitual exercise on Klotho, with a particular focus on arterial stiffness. First, we examined the correlation between plasma Klotho concentration and arterial stiffness (carotid artery compliance and β-stiffness index) or aerobic exercise capacity [oxygen uptake at ventilatory threshold (VT)] in 69 healthy, postmenopausal women (50-76 years old) by conducting a cross-sectional study. Second, we tested the effects of aerobic exercise training on plasma Klotho concentrations and arterial stiffness. A total of 19 healthy, postmenopausal women (50-76 years old) were divided into two groups: control group and exercise group. The exercise group completed 12 wk of moderate aerobic exercise training. In the cross-sectional study, plasma Klotho concentrations positively correlated with carotid artery compliance and VT and negatively correlated with the β-stiffness index. In the interventional study, aerobic exercise training increased plasma Klotho concentrations and carotid artery compliance and decreased the β-stiffness index. Moreover, the changes in plasma Klotho concentration and arterial stiffness were found to be correlated. These results suggest a possible role for secreted Klotho in the exercise-induced modulation of arterial stiffness.

Original languageEnglish
Pages (from-to)H348-H355
JournalAmerican Journal of Physiology - Heart and Circulatory Physiology
Volume306
Issue number3
DOIs
Publication statusPublished - 2014 Feb 1

Keywords

  • Aerobic exercise
  • Arterial stiffness
  • Klotho

ASJC Scopus subject areas

  • Physiology
  • Cardiology and Cardiovascular Medicine
  • Physiology (medical)

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