Relationship between seasonal cold acclimatization and mtDNA haplogroup in Japanese.

Takayuki Nishimura, Midori Motoi, Yousuke Niri, Yoshikazu Hoshi, Ryuichiro Kondo, Shigeki Watanuki

研究成果: Contribution to journalArticle査読

12 被引用数 (Scopus)

抄録

The purpose of this study was to elucidate the interaction between mtDNA haplogroup and seasonal variation that contributes to cold adaptation. There were 15 subjects (seven haplotype D subjects and eight haplotype non-D subjects). In summer and winter, the subjects were placed in an environment where the ambient temperature dropped from 27 °C to 10 °C in 30 minutes. After that, they were exposed to cold for 60 minutes. In summer, the decrease in rectal temperature and increase in oxygen consumption was smaller and cold tolerance was higher in the haplotype non-D group than in the haplotype D group. In winter, no significant differences were seen in rectal temperature or oxygen consumption, but the respiratory exchange ratio decreased in the haplotype D group. The results of the present study suggest that haplogroup D subjects are a group that changes energy metabolism more, and there appears to be a relationship between differences in cold adaptability and mtDNA polymorphism within the population. Moreover, group differences in cold adaptability seen in summer may decrease in winter due to supplementation by seasonal cold acclimatization.

本文言語英語
ページ(範囲)22
ページ数1
ジャーナルJournal of physiological anthropology
31
DOI
出版ステータス出版済み - 2012

All Science Journal Classification (ASJC) codes

  • Human Factors and Ergonomics
  • Physiology
  • Orthopedics and Sports Medicine
  • Anthropology
  • Public Health, Environmental and Occupational Health
  • Physiology (medical)

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